FLOW PERFORMANCE COMPARISON DISPLAY DEVICE

TECHNICAL FIELD

[000l]The present invention relates to a flow performance comparison display device for visually comparing the amount of fluid passing through each of tube bodies, for example, constituted by a hose or tube, in a case where a plurality of tube bodies and joints are tube-connected.

BACKGROUND

[0002] Conventionally, as this type of performance comparison display device, a plurality of tube bodies having different performances is arranged side by side, and same amount of displacement is concurrently applied to the other movable ends of these tube bodies to generate a kink state or near kink state where any one of the tube bodies has its internal flow line obstructed associated with the concurrent displacement so that twist resistant performance of each tube body appears at the same time (for example, see patent literature l).

DESCRIPTION OF THE RELATED ART PATENT LITERATURE

[0003]PATENT LITERATURE l: Japanese Unexamined Patent Application Publication No. 2005-24297

SUMMARY

PROBLEM TO BE SOLVED BY THE INVENTION

[0004]Such a conventional performance comparison display device makes it possible to accurately distinguish the twist resistant performance of the tube bodies to be compared by simple manipulation. Meanwhile, when using a tube-connected tube body such as a hose or tube, the amount of a fluid passing through a tubed tube body (instantaneous flow) is listed as a performance of the tube connection, leaving aside the twist resistant performance. The flow performance depends on the internal resistance to flow of a fluid passing through a tube body and internal area (passing resistance or passing area) when the fluid passes through the tube body, and the passing resistance or passing area of a joint which is used to tube-connect the tube body to a tube line connected to a water supply source.When a tube body or a joint with degraded flow performance is used, the flow passing therethrough is reduced to thereby result in some energy loss. However, conventionally, it has been difficult to simply recognize the flow performance of a tube body or joint, and therefore there is a desire for an experimental device capable of readily and visually comparing the passing flow through a plurality of tubed tube bodies and a tube body.

[0005]The object of the present invention is to address such a problem, that is, to accurately distinguish the flow performance of a joint and a tube body to be compared by simple manipulation.

MEANS FOR SOLVING PROBLEM

[0006]ln order to achieve such an object, a flow performance comparison display device according to the present invention is characterized by comprising: a plurality of sets of tube line units arranged side by side! a plurality of tube bodies respectively provided in the tube line units! a plurality of joints respectively connected to the tube bodies in the tube line units! a plurality of containers respectively connected to the tube bodies in the tube, line units through the joints! and a plurality of fluids having same capacity respectively stored in the containers in the tube line units, wherein a plurality of types of joints having different passing resistances to the fluids is respectively arranged as the joints to be compared, or a plurality of types of tube bodies having different passing resistances to the fluids is respectively arranged as the tube bodies to be compared for the tube line units, and the containers of the tube line units respectively have a see-through means for recognizing from outside a residual quantity of the fluids which are supplied from the containers toward the tube bodies through the joints.

ADVANTAGEOUS EFFECT OF THE INVENTION

[0007]According to the present invention having the above described feature, when fluids are respectively and concurrently supplied from the containers of a plurality of sets of tube line units toward joints or tube bodies to be compared and having different passing resistances, a difference appears in the residual quantities in the containers associated with the difference in the passing resistances of the joints or the tube bodies. The flow performance of the joints or the tube bodies concurrently appears to facilitate comparison, and thus visual observation of the residual quantities using the see-through means of the containers makes it possible to accurately distinguish the flow performance of the joints or the tube bodies to be compared by simple manipulation. As a result, an instantaneous flow and a pressure loss of articles to be compared can be recognized by visual observation and superiority of flow performance is recognized by a user, and thus the user can efficiently understand the energy loss and the power saving in pipe arrangement. Further, a consumer can conduct comparative experiments for flow performance by freely manipulating a device, and the comparative experiments for flow performance can be conducted anywhere because there is no need for a drive source, and thus the device is suitable particularly for a flow performance comparison display device placed in front of a shop. Accordingly, it is possible to demonstrate the superiority in flow performances of joints and tube bodies and bending resistance performances of tube bodies before consumers, and thus efficient sales promotion can be performed.

BRIEF DESCRIPTION OF THE DRAWINGS

[0008]Fig. 1 is a view (perspective view) illustrating a entire configuration of a flow performance comparison display device according to an embodiment of the present invention.

Fig. 2 is a partially cut out front view illustrating an on state of an on-off valve.

Fig. 3 is a partially cut out front view illustrating an entire configuration of a flow performance comparison display device according to an embodiment of the present invention, and illustrating an on state of an on-off valve.

Fig. 4 is a partially cut out front view illustrating an entire configuration of a flow performance comparison display device according to another embodiment of the present invention.

Fig. 5 is a partially cut out front view illustrating a variation.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0009]Hereinafter, preferred embodiments of the present invention is described in detail with reference to the drawings. As shown in Fig. 1 - Fig. 5, a flow performance comparison display device A according to an embodiment of the present invention is an experimental device (flow performance comparison display device) with a plurality of sets of tube line units Bl, B2 having a plurality of tube bodies 1, a plurality of joints 2, and a plurality of containers 3 respectively tube-connected to compare the flow (instantaneous flow) of fluids passing through joints 2 or tube bodies 1 by visual observation. A specific example of the flow performance comparison display device A shown in the drawings has two sets of tube line units Bl, B2 arranged side by side, and two tube bodies 1 are respectively tube-connected within the two sets of tube line units Bl, B2.Hereinafter the two sets of tube line units Bl, B2 is described. Additionally, although not shown here, three sets or more tube line units may be arranged.

[0010]Specifically, the flow performance comparison display device A comprises as major components: a plurality of sets of tube line units Bl, B2 arranged side by side,' a plurality of tube bodies 1 respectively provided in the tube line units Bl, B2; a plurality of joints 2 respectively connected to the tube bodies 1 in the tube line units Bl, B2; a plurality of containers 3 respectively connected to the tube bodies 1 in the tube line units Bl, B2 through the joints 2J and a plurality of fluids 4 having the same capacity respectively stored in the containers 3 in the tube line units Bl, B2.

[0011]Flexible tubes having a conventionally known elastically deformable structure, for example, a hose and tube may be used as the plurality of tube bodies 1 respectively provided in the tube line units Bl. B2. Additionally, an elastically non-deformable pipe and so forth may be used in place of the flexible tube. Tube joints having conventionally known structure generally used for tube-connecting the flexible tube and so forth are principally used as the plurality of joints 2 respectively connected to the tube bodies 1 in the tube line units Bl, B2.

[0012]As the plurality of the containers 3 connected to the tube bodies 1 in the tube line units Bl, B3, containers at least having same cross-sectional areas are used so that when the same capacity of later described fluids 4 are respectively stored in each inside of the containers, each storage has same level in the container. Airtight containers having same size (same volume) are preferably used. The plurality of containers 3 has a see-through means 3a respectively.The see-through means 3a is configured by forming the entire container 3 with a transparent or semitransparent material or by forming a see-through window in a portion thereof, and the see-through means 3a allows a user to recognize the fluid 4 stored inside the container 3 by visual observation from outside. Further, an opening 3b is arranged at the end of the plurality of containers 3 to put in or take out the fluid 4, and coupling tubes 3c are each detachably attached to the openings 3b. The coupling tubes 3c are tube-connected with the joints 2c to direct the openings 3b of the containers 3 downward so that the fluids 4 in the container 3 are respectively supplied toward the tube bodies 1 through the joints 2.The residual quantity of the fluid 4 reduced along with the supply can be recognized from outside using the see-through means 3a.

[0013]For example, a liquid such as water or warmed water, particles such as sand, or powder, which are excellent in fluidity, are used as the fluid 4, which flows down from the container 3 by gravity and is supplied toward the joint 2 and the tube body 1. Further, it is preferable to facilitate distinguishing the storage quantity (residual quantity) in the plurality of containers using the see-through means 3a by respectively storing differently colored liquids or particles in each container 3 as the fluid 4. Further, it is preferable to provide second containers 5 for collecting the fluid 4, respectively connected to downstream ends in the supply direction of the fluid 4 of the tube bodies 1 in the tube line units Bl, B2, and to thereby discharge the fluid 4 respectively supplied from the first containers 3 to the tube bodies 1 into the second containers 5.Each of the second containers 5 preferably includes a see-through means 5 which allows a user to recognize the fluid 4 stored inside the container 5 by visual observation from outside.

[0014]The tube line units Bl, B2 respectively include a plurality types of joints 2a. 2b having different passing resistances to the fluid 4 that is described later as the joints 2 to be compared, or respectively include a plurality types of tube bodies la, lb having different passing resistances to the fluid 4 as the tube bodies 1 to be compared.

[0015]The joints 2a, 2b to be compared having different passing resistances to the fluid 4 means that the sizes in the passing area for the fluid 4 are different from each other.Specifically, the inner diameters of a cylindrical nipple (not shown) inserted along the inner peripheral surface of the tube body 1 are different from each other. As a specific example of the joint 2a having a large passing area for the fluid 4 and a small passing resistance thereto, a hose joint formed to have a nipple with a comparatively small thickness may be listed, which is described, for example, in the Japanese Unexamined Application Publication No. 2011-069484. Further, as a specific example of the joint 2b having a small passing area for the fluid 4 and a large passing resistance thereto, a "barb nipple" formed to have a comparatively large thickness may be listed, the nipple having a plurality of annular projections and annular recesses alternately and continuously formed in the axial direction on the outer peripheral surface of the nipple as described, for example, in the Japanese Examined Utility Model Application Publication No. 4-49436. As the example of experiment, the hose joint 2a having a small passing resistance to the fluid 4 is arranged in the tube line unit Bl that is one tube line unit as shown in Fig. 1 and Fig. 2.The barb nipple is arranged in the other tube line unit B2 as the joint 2 having a large passing resistance to the fluid 4. Further, the tube bodies 1 having the same structure and the same size in length and inner diameter are respectively arranged in both tube line units Bl, B2. Additionally, although not shown here, as another example of experiment, it is possible to arrange joints other than the hose joints and the barb nipples as the joints 2a, 2b to be compared and having different passing resistances to the fluid 4.

[0016]The tube bodies la, lb to be compared, having different passing resistances to the fluid 4 means that the tube bodies have different sizes from each other in the passing area for the fluid 4.Specifically, such tube bodies include those that have mutually different sizes in the passing area for the fluid 4 by bending- deforming or torsionally deforming the tube bodies la, lb, that are different in the inner diameter or length between the tube bodies la, lb, and that have or does not have unevenly profiled portions on the inner surfaces of the tube bodies la, lb. As a specific example of the tube body la having a large passing area for the fluid 4 and a small passing resistance to the fluid 4, a pressure resistant hose and so forth may be listed, which has a spiral reinforcing material embedded therein over the entire length in the axial direction to maintain a true circle cross-section for the internal flow line even when the hose is bent or torsionally deformed as described in the Japanese unexamined patent application publication No. 2009-052575.

Further as a specific example of the tube body lb having a small passing area for the fluid 4 and a large passing resistance to the fluid 4, a conventionally known flexible hose and so forth may be listed, which has a single layer or a laminated structure with no spiral reinforcing material embedded therein and the internal flow line tends to be deformed into an elliptic cross section associated with a bending or torsional deformation. As the example of experiment, the pressure resistant hose is arranged to be bent or torsionally deformed as the tube body la having a small passing resistance to the fluid 4 in the one tube line unit Bl as shown in Fig. 3. The flexible hose is arranged to be similarly bent or torsionally deformed as the tube body lb having a large passing resistance to the fluid 4 in the other tube line unit B2.Further, joints 2 having the same size and the same structure are respectively arranged in both tube line units Bl, B2. Additionally, although not shown here, as another example of experiment, a tube body other than the pressure resistant hose and the flexible hose may be arranged as tube bodies la, lb having different passing resistances to the fluid 4 to be compared.

[0017]ln a flow performance comparison display device A according to an embodiment of the present invention, first, joints 2a, 2b to be compared, which have different passing resistances to the fluid 4 or tube bodies la, lb to be compared, which have different passing resistances to the fluid 4 are set in a plurality of sets of tube line units Bl, B2, and then the set tube line units Bl, B2 are arranged side by side. Under this state of arrangement, the fluids 4 are respectively started to be supplied from first containers 3 of the tube line units Bl, B2 toward the joints 2a, 2b having different passing resistances or the tube bodies la, lb having different passing resistances substantially at the same time. Thereby, a difference occurs in the residual quantities of the fluids 4 in the first containers 3 associated with the difference in the passing resistances between the joints 2a, 2b, or between the tube bodies la, lb. An experimenter can see the difference between the residual quantities using the see-through means 3a provided on the first container 3, and thus can easily compare the flow performances of the joints 2a, 2b or the tube bodies la, lb which appear at the same time. Accordingly, the experimenter can easily distinguish the flow performances of the joints 2a, 2b to be compared and the tube bodies la, lb to be compared with simple manipulation.

[0018]Specifically, when the second containers 5 for collecting the fluid 4 are respectively connected to the downstream ends of the tube bodies 1 in the tube line units Bl, B2, the fluids 4 respectively supplied toward the tube bodies 1 from the containers 3 in the plurality of sets of tube line units Bl, B2 to be compared, are all collected in the second containers 5. Thereby, the fluid 4 can be prevented from leaking out. As a result, only by pouring the fluid 4 into the first containers 3, anyone can easily perform a flow performance comparative experiment without using electricity anywhere in a building, and thus the flow performance comparison display device can provide an excellent usability. Moreover, the fluid 4 collected in the container 5 is put back into the first container 3, and thus can allow for repetitive experiments. Further, when the second container 5 has a see-through means 5a which allows a user to recognize the fluid 4 stored therein from outside via visual observation, a difference occurs in the storage quantities of the fluid 4 respectively supplied into the second containers 5 associated with the difference in the passing resistances of the joints 2a, 2b or the tube bodies la, lb, and by seeing the storage quantity difference using the see-through means 5a, the flow performances of the joins 2a, 2b or the tube bodies la, lb can be concurrently recognized. Also by using the see-through means 5a, the user can accurately distinguish the flow performances of the joints 2a, 2b and the tube bodies la, lb to be compared. Next, each embodiment of the present invention is described with reference to the drawings.

EMBODIMENT 1

[0019]The embodiment 1 illustrates that a plurality of oiroff valves 6 are respectively provided between the joints 2 and the first containers 3 in the plurality of tube line units Bl, B2, which controls passing of the fluid 4 toward the joints 2 and the tube bodies 1, and the opening of the on-off valves 6 will start the fluid 4 to be supplied from the first containers 3 toward the joints 2 and the tube bodies 1 as shown in Fig. 1 and Fig. 2.

[0020]The on-off valve 6 is a valve having a conventionally known structure, which performs on-off operation by manipulation, electric control and so forth. When the on-off valves 6 are operated by manipulation, a manipulation lever 6a for concurrently providing on-off operation for the plurality of on-off valves 6 is preferably provided, and the on-off valves 6 are concurrently operated by manipulation of the manipulation lever 6a to respectively supply the fluid 4 in the first containers 3 toward the joints 2 and the tube bodies 1.

[002l]A plurality of types of joints 2a, 2b having different passing resistances to the fluid 4 is each arranged as the joints 2 to be compared on downstream side of the on-off valves 6 in the tube line units Bl, B2 as shown in Fig. 1 and Fig. 2. A plurality of joints 2a, 2b having different passing resistances to the fluid 4 is arranged for each tube body 1 as the joints 2 to be compared in the example shown in Fig. 1 and Fig. 2. Specifically, a pair of the hose joints is arranged as the joints 2a having a small passing resistance to the fluid 4 at the upstream end and the down steam end of the tube body 1 in one tube line unit Bl. A pair of the barb nipples is arranged as the joints 2b having a large passing resistance to the fluid 4 at the upstream end and the down steam end of the tube body 1 in the other tube line unit B2. Further, although not shown here, as another example, a plurality of joints 2a and joints 2b to be compared and having different passing resistances to the fluid 4 may be respectively arranged at either an upstream end or a downstream end and at the middle position therebetween of the tube bodies 1, or tube joints other than the hose joint and the barb nipple may be arranged as the joints 2a, 2b to be compared and having different passing resistances to the fluid 4.

[0022]Furthermore, in an example shown in Fig. 1 and Fig. 2, a self-standing device body 7 is provided to allow a plurality of sets of tube line units Bl, B2 to be fixedly arranged with respect to the self-standing device body 7 such that each tube body 1 is suspended and arranged side by side in substantially parallel to each other. The device body 7 has a support part 7a for attaching a plurality of first containers 3 thereto, and a leg part 7b for standing the support part 7a by itself. The support part 7a is constituted by mounting plate materials made of rigid substances such as metal, hard synthetic resin or the like into a framework assembled by rod materials made of rigid substances such as metal including stainless steel, hard synthetic resin or the like. The leg part 7b is constituted by fixing the rod materials and the plate materials of the support part 7a. The support part 7a has a fixing rod 7c with which a portion of a cylindrical tank with a bottom configured as the first container 3 comes into contact to position the first container 3 unmovably in the z_axis (vertical) direction, while the first container 3 is mounted detachably and unmovably in the XY-axes (longitudinal and horizontal) directions with a plurality of U-shaped rod materials 7d. Tanks made of a synthetic resin as the second container 5 are detachably placed on the leg part 7b. Additionally, although not shown here, as another example, the tanks having the same shape may be used as the first container 3 and the second container 5.

[0023]Such a flow performance comparison display device A according to the embodiment 1 of the present invention is operated to open a plurality of on-off valves 8 at the same time so that the fluids 4 are started to be supplied from each container 3 toward the joints 2a, 2b or the tube bodies la, lb to be compared. Thereby, a flow performance comparative experiment can be easily started. As a result, the flow performance comparison display device A is excellent in manipulation performance.

[0024]Further, when a manipulation lever 6a for concurrently providing on-off operations for the plurality of on-off valves 6 is provided, the plurality of the on-off valves 6 is concurrently operated by manipulation of the manipulation lever 6a to allow the fluid 4 to be started to be supplied from each first container 3 toward the joints 2a, 2b and the tube bodies la, lb at the same time. Thereby, the flow performance comparative experiment can be accurately conducted under the same condition. As a result, the accuracy in the flow performance comparison experiment can be further improved.

[0025]Further, when a plurality of joints 2a and joints 2b to be compared and having different passing resistances to the fluid 4 is respectively arranged for each of the tube bodies 1, the difference in the residual quantities is doubled by the concurrent opening operation of the oiroff valve 6 to facilitate the comparison between the residual quantities. Accordingly, the user can further clearly distinguish the flow performance of the joints 2a, 2b to be compared.

EMBODIMENT 2

[0026]ln the embodiment 2, the pressure resistant hose and the flexible hose having the same size in the length and the inner diameter are prepared as the tube bodies la, lb to be compared and having different passing resistances to the fluid 4, which are respectively arranged in a plurality of sets of the tube line units Bl, B2 as shown in Fig. 3.The pressure resistant hose which is bent and deformed is arranged in one tube line unit Bl as the tube body la having a small passing resistance to the fluid 4, and the flexible hose which is similarly bent and deformed is arranged in the other tube line unit B2 as the tube body lb having a large passing resistance to the fluid 4. Such a configuration is different from the embodiment 1 as shown in Fig. 1 and Fig. 2, however, other configuration is same as the configuration of the embodiment 1.

[0027]ln the example shown in Fig. 3, the tube bodies la, lb are respectively arranged in a straight line, and thereafter vertically compressed to be bent and deformed under the same condition. Specifically, the support part 7a is lowered with respect to the leg part 7b of the device body 7, and then the support part 7a is unmovably fixed by a positioning means 7e which is constituted by through-holes perforated in the support part 7a and the leg part 7b of the device body 7, and a stopper pin to be inserted therethrough. Further, although not shown here, as another example, the tube bodies la, lb are not vertically compressed, but instead may be preliminarily arranged to be bent, or a positioning means 7e having a different structure may be used.

[0028]In such a flow performance comparison display device A according to the embodiment 2 of the present invention, the pressure resistant hose arranged in one tube line unit Bl as the tube body la can maintain a true circle cross-section for the internal flow line by the spiral reinforcing material lal embedded over the entire length in the axial direction even when the hose is bent and deformed. In contrast, when the flexible hose as the tube body lb arranged in the other tube line unit B2 is bent and deformed, the bending force concentrates on a portion of the tube body lb to fold the tube body 1. As a result, the tube body 1 is easily flattened to cause a so-called "kink" where the internal flow line is completely obstructed, and thus a difference occurs in the residual quantities of the fluid 4 in the containers 3 in relation to the concurrent opening operation of the on-off valve 6. By visually observing the difference in the residual quantities through the see-through means 3a of the container 3, the user can easily compare the flow performances of the tube bodies la, lb which concurrently appear. Accordingly, the user can accurately distinguish the flow performances of the tube bodies la, lb to be compared.

EMBODIMENT 3

[0029]In the embodiment 3 as shown in Fig. 4 and Fig. 5, the first containers 3 and the second containers 5 are formed into same shape respectively, and the second containers 5 have a see-through means 5a for recognizing from outside collection amounts of the fluids 4 discharged from the first containers 3 into the second containers 5 through the joints 2 and the tube bodies 1, while recognizing from outside residual quantities of the fluids 4 respectively supplied from the second containers 5 toward the first containers 3 through the tube bodies 1 and the joints 2. That is, the containers having the see-through means 3a and formed into the same shape are used as the first container 3 of the tube line unit Bl and the first container 3 of the tube line unit B2, while the containers having the see-through means 5a and formed into the same shape are used as the second container 5 of the tube line unit Bl and the first container 5 of the tube line unit B2, which allows the fluid 4 to be supplied in the opposite direction by inverting the entire tube line units Bl, B2.

[0030]In the example shown in Fig. 4 and Fig. 5, the plurality of sets of tube line units Bl, B2 is disposed to stand by itself substantially in parallel without using the device body 7 as illustrated in Figs. 1- 3. That is, in the example shown in Fig. 4, transparent bottles, all of which are formed into the same shape and having smooth bottom surfaces 3d, 5d, are used as the first containers 3 and the second containers 5, and the tube fine units Bl, B2 are configured to stand by itself independently with the smooth bottom surface 5d of the second container 5 or the smooth bottom surface 3d of the first container 3 placed on a horizontal plane C such as a floor surface, desk, or board. In the example shown in Fig 5, a retaining means D having at least a pair of mutually opposing smooth placement surfaces Dl retains the plurality of sets of the tube line units Bl, B2 side by side, and the retaining means D is configured to allow the tube line units Bl, B2 to stand by itself with the first containers 3 and the second containers 5 disposed on each of the upper and lower ends of the retaining means D by placing either one of the placement surfaces Dl on the horizontal plane C.

A specific example of the retaining means D is constituted by, for example, a hardly-deformed rigid body such as a box-shaped case having the front face opened or a frame body having both the front and rear faces opened, and a plurality of sets of the tube line units Bl, B2 are preferably housed therein side by side. Further, although not shown here, as another example, the retaining means D is constituted by a deformable binding member such as a belt, and by using the binding member the smooth parts along the smooth bottom surface 3d of the first container 3 and the smooth bottom surface 5d of the second container 5 may be used as the pair of smooth placement surfaces Dl, or the smooth bottom surface 3d of the first container 3 and the smooth bottom surface 5d of the second container 5 may be directly used as the pair of smooth placement surfaces D1.

[003l]It is preferable to couple the first container 3 and the second container 5 with the joints 2 and the tube bodies 1 of the tube line units Bl, B2 respectively in a detachable manner. In the example shown in Fig. 4 and Fig. 5, one ends of coupling tubes 3c, 5c formed into the same shape as an opening 3b of the first container 3 and an opening 5b of the second container 5 are screwed to the opening 3b of the first container 3 and the opening 5b of the second container 5, or the base end of the joints 2 (2a, 2b) are screwed to the other ends of the coupling tubes 3c, 5c, and thereby detachable coupling is performed. Further, in the example shown in Fig. 4 and Fig. 5, a plurality of types of joints 2a, 2b having different passing resistances to the fluid 4 is respectively arranged as the joints 2 to be compared in the same manner as the example shown in Fig. 1 and Fig. 2, and a tightening member lc such as hose band is provided at the connection section between the barb nipple arranged as the joint 2b having a large passing resistance to the fluid 4 and the tube body 1 to lock the tube body 1. Additionally, although not shown here, as another example, it is possible to couple the first containers 3 and the second containers 5 with the tube bodies 1 in the tube line units Bl, B2 in a detachable manner by using a detachable structure other than screwing, and the plurality types of tube bodies la, lb having different passing resistances to the fluid 4 is respectively arranged as the tube bodies 1 to be compared in the tube line units Bl, B2 in the same manner as the example shown in Fig. 3.

[0032]In the flow performance comparison display device A according to the embodiment 3 of the present invention, all of the fluids 4 is respectively discharged and collected in the second containers 5, and thereafter the directions of supplying the fluids 4 are respectively reversed by inverting the tube line units Bl, B2 so that each of the fluids 4 is supplied toward the joints 2a, 2b or the tube bodies la, lb having different passing resistances, and all of the fluids 4 are respectively collected in the first containers 3. Thereby, the flow performance comparative experiments can be easily repeated any number of times. As a result, a consumer can repeat the experiment until the consumer is fully satisfied.

[0033]Further, when the first container 3 and the second container 5 are respectively coupled with the tube bodies 1 in the tube line units Bl, B2 in a detachable manner, the tube line units Bl, B2 can be simply taken apart by removing the first container 3 and the second container 5 from each of the tube bodies 1. Thereby, the entire device can be made compact. As a result, the device is excellent in portability, easy to carry, and makes it possible to conduct an experiment anywhere.

[0034]Further, as shown in Fig. 5, when the retaining means D retains the plurality of sets of the tube line units Bl, B2 side by side, and the tube line units Bl, B2 are set to stand by itself with the first containers 3 and the second containers 5 disposed at each of upper and lower ends of the retaining means D by placing either one of a pair of smooth placement surfaces Dl of the retaining means D on the horizontal plane C, it is possible to easily carry the tube line units Bl, B2 without leakage of the fluid 4 because the retaining means D integrates the tube line units Bl, B2. Particularly, when the retaining means D is constituted by a hardlydeformable rigid body such as a box-shaped case and a frame body, a standing state of the tube line units Bl, B2 can be stabilized to prevent the tube line units Bl, B2 from falling easily.

[0035]In the example of the embodiment 1 and the embodiment 3 shown in the drawings, a plurality of joints 2a and a plurality of joints 2b to be compared and having different passing resistances to the fluid 4 are respectively arranged for each of the tube bodies 1 in the plurality of sets of the tube line units Bl, B2, however, not limited to this configuration, a single joint 2a and a single joint 2b to be compared may be respectively arranged at either an upstream end or a downstream end of the respective tube bodies 1. Further, the number of the joints 2 arranged in the tube body 1 is increased or decreased in either one tube line unit Bl or the other tube line unit B2 so that the number of the joints 2 is different between both the tube lint units Bl, B2, and thereby the difference in the flow performances between both tube line units Bl, B2 may be distinguished. Further, in the embodiment 2, the tube bodies la, lb to be compared and having different passing resistances to the fluid 4 are deformed by bending and arranged, however, not limited to the configuration, by arranging the torsionally deformed tube bodies la, lb to be compared or by arranging tube bodies having different sizes in the inner diameter and length, or having or not having unevenly profiled portions on the inner peripheral surface as the tube bodies la, lb to be compared, the difference in the flow performances of these tube bodies may be distinguished. As another example of arrangement, by combining the joints 2a, 2b and the tube bodies la, lb having different passing resistances to the fluid 4 and arranging them, the difference in the flow performances of these tube bodies may be distinguished. Also, in such configurations, the same effect as the embodiments 1-3 can be produced.

DESCRIPTION OF THE REFERENCE NUMERALS

[0036]B1, B2 tube line unit
1 tube body la, lb tube bodies to be compared
2 joint
2a, 2b joints to be compared
3 container (first container) 3a see-through means
4 fluid
5 second container
5a see-through means
6 on-off valve
6a manipulation lever Bl, B2 tube line unit

Claims

What is claimed is:

1. A flow performance comparison display device comprising: a plurality of sets of tube line units arranged side by side; a plurality of tube bodies respectively provided in the tube line units,' a plurality of joints respectively connected to the tube bodies in the tube line units! a plurality of containers respectively connected to the tube bodies in the tube line units through the joints! And a plurality of fluids having same capacity respectively stored in the containers in the tube line units, wherein a plurality of types of joints having different passing resistances to the fluids is respectively arranged as the joints to be compared, or a plurality of types of tube bodies having different passing resistances to the fluids is respectively arranged as the tube bodies to be compared, for the tube line units, and the containers in the tube line units respectively have a see-through means for recognizing from outside a residual quantity of the fluids which are supplied from the containers toward the tube bodies through the joints.

2. The flow performance comparison display device according to claim 1, wherein second containers for collecting the fluids are respectively connected to downstream ends of the tube bodies in the tube line units.

3. The flow performance comparison display device according to claim 1 or 2, wherein a plurality of on-off valves for controlling passing of the fluids toward the joints and the tube bodies is respectively provided between the joints and the containers in the tube line units.

4. The flow performance comparison display device according to claim 3, wherein a manipulation lever for concurrently providing on-off operation for the on-off valves in the tube line units is provided.

5. The flow performance comparison display device according to claim 2, wherein the containers and the second containers are formed into same shape respectively and the second containers have a see-through means recognizingfrom outside collection amounts of the fluids discharged from the containers into the second containers through the joints and the tube bodies, while recpgnizingfrom outside residual-quantities of the fluids respectively supplied from the second containers toward the containers through the tube bodies and the joints.

6. The flow performance comparison display device according to claim 2 or 5, wherein the containers and the second containers are respectively coupled with the joints and the tube bodies in the tube line units in a detachable manner. ,