DESC:FIELD

The present disclosure relates to tackers. More particularly, the present disclosure relates to an improved gun tacker designed for efficiently driving fastening members, for example staples, pins, nails or the like, of various shapes and sizes into a work surface or a workpiece in order to tack something therewith. The improved gun tacker is engineered to enhance the user experience by providing improved ergonomics, efficient driving force, and enhanced precision in fastening operations.

BACKGROUND

Gun tackers, for example, staple gun tackers are well known and used to drive staples into various work surfaces or workpieces to tack for example, cables, carpets, ceiling tiles, wallpapers wood, plastic, metal sheet or the like therewith. The contemporary staple gun tackers generally include a housing, a movable handle attached to the housing, a driving mechanism including a driving spring, a driver, a staple magazine and a biasing member for pressing against a clip of staples. The handle and housing may be gripped and operated by a single hand. During operation, the user squeezes the handle and housing together, activating the driving mechanism and causing the driver to propel the staple pin into the work surface or a workpiece, tacking the desired object in place.

Despite the availability of a wide variety of staple gun tackers, many of such devices exhibit significant limitations that can hinder their effectiveness. A primary concern is the lack of adequate guidance for staples throughout their travel path, which can lead to common failures such as buckling, twisting or overturning issues during operation. For example, a buckling issue in staple gun tackers arises when staples bend upon impact with the target material, making it difficult to penetrate the material, resulting in inadequate penetration and ineffective fastening. Such failures can be attributed to design shortcomings, for example, in the driving mechanism and staple alignment features, which fail to ensure a smooth and consistent delivery of staples into the workpiece. Such an issue not only compromises the effectiveness of the fastening process but can also cause damage to the target material, such as splitting or cracking. Additionally, bent staples increase the likelihood of misfires and jams, further complicating the user’s experience. Addressing such shortcomings is essential for improving gun tacker performance and enhancing user satisfaction.

A need, therefore, exists to provide an improved gun tacker that addresses the limitations of existing gun tackers, particularly through the incorporation of among others, an improved guiding mechanism. Moreover, while various gun trackers have been developed, there remains a constant need for improvements in several key areas, for example ease of use, cost-effectiveness, construction quality, operational efficiency, and the overall effectiveness of the fastening outcome.

SUMMARY AND OBJECTS:

It is an object of the present disclosure to provide a gun tacker incorporating an improved guiding mechanism that ensures accurate alignment and stability of fastening members for example, staples during their travel path, thereby reducing the likelihood of bucking, twisting, or misfiring upon impact with the work surface, thereby increasing operational reliability and efficiency, which is particularly important in high-volume applications.

Another object of the present disclosure is to provide an improved driving mechanism for the gun tacker to deliver a consistent and sufficient driving force, ensuring effective penetration of staples into various materials, thus improving overall fastening performance.

Another object of the present disclosure is to provide an improved gun tacker which is configured to drive fastening members of various shapes and sizes into a work surface or workpiece, thereby enabling users to cater to a wide range of fastening applications effectively.

Another object of the present disclosure is to provide an improved gun tacker that facilitates seamless transitions between different fastening members on its own, enabling users to switch quickly and easily without the need to operate any switch or selector.

Another object of the present disclosure is to provide an improved handheld gun tacker incorporating a guiding mechanism, specifically adapted to guide a fastening member throughout its entire travel path with the assistance of at least one independent slider.

Another object of the present disclosure is to provide an improved gun tacker which is simple in construction, easy to use and reliable in use.

Yet another object of the present disclosure is to provide an improved gun tacker adapted to drive fastening members, including staples having round or flat crowns and including staples, nails or pins of various sizes and shapes to different depths.

A further object of the present disclosure is to provide an improved gun tacker that is versatile enough to effectively drive staples into a wide range of materials including, for example wood, plastic, fabric, metal sheets, making it suitable for diverse applications in both professional and DIY settings.

Thus, the aspects of the present disclosure relate to an improved gun tacker designed to drive various fastening members, for example staples, pins, nails or the like, into work surfaces or workpieces for tacking purposes. The improved gun tacker comprises a guiding unit that includes a fastening member guide assembly, which is adapted to be positioned inside the gun tacker housing. The guiding unit comprises a fastening member guide unit that is positioned in front of the fastening member guide assembly. The fastening member guide unit comprises at least one striker plate, at least one guiding plate that facilitates to guide and direct the fastening members as they are driven into the workpiece, one or more slider insert(s) that ensures smooth movement of the fastening members and one or more flexible member(s) that adds adaptability to accommodate various types and sizes of fastening members.

The present disclosure thus relates to a gun tacker for driving fastening members of various shapes and sizes into a work surface or a work piece comprising: a housing having a front end and a base; a handle for user operation; and a finger hole opening to facilitate user interaction and operation; wherein the gun tacker further includes: a guiding unit assembly integrated within the front end of the housing; a fastening member supply assembly integrated within the base of the housing; and wherein the guiding unit assembly comprises: at least one striker plate; at least one guiding plate; one or more slider insert(s); and one or more flexible member(s).

The fastening member supply assembly comprises a fastening member guide unit to guide the fastening members along its guide rails being positioned facing the guiding unit assembly. The housing comprises a bottom edge opening. The fastening members include staples, pins, nails or the like, of various shapes and sizes.

The guiding plate has a body with a proximal end and a distal end, the body further comprising a proximal face and a distal face. The guiding plate is vertically oriented in an axial direction A within the guiding unit assembly in a position that the distal face of the guiding plate faces the fastening member supply assembly. The guiding plate is provided with at least one slot passing the proximal face thoroughly to the distal face and extending in the axial direction A to engageably receive the slider inserts.

The distal face of the guiding plate is provided with at least one pair of guiding grooves, each having a two-step configuration, wherein the two-step construction comprising a first step and a second step. The two-step configuration defines two distinct spaces, comprising a space being an area between the first step of the two-step configuration and a space being an area between the second step of the two-step configuration. One of the guiding grooves includes an open area designed to guide and accommodate fastening members, including nails.

The slider insert(s) includes a supporting end and a slidable end. The supporting end of the slider insert(s) is provided with a hole configured to receive the flexible member. The slidable end of the slider insert(s) includes a tapered profile on its top surface, the tapered profile having a slope that transitions to a flat surfaced profile. The slidable end of the slider insert protrudes from the proximal face of the guiding plate, and the supporting end protrudes from the distal face of the guiding plate, with the supporting end being engageably received in the slot. The slidable end of the slider insert(s) adapted to remain in a protruded position, extending upward, due to the force exerted by the flexible member(s).

The improved guiding mechanism of the present disclosure is designed to ensure precise alignment and stability of the fastening member, such as staples, nails or pins, as it travels from the loading chamber to the point of impact with the work surface. The one or more slider(s) allows for smooth and controlled movement of the fastening member, minimizing the risk of misalignment, buckling, or twisting during operation. Furthermore, this improved guiding mechanism operates seamlessly within the gun tacker, requiring no manual adjustments from the user, thereby enhancing the overall user experience by simplifying the fastening process.

The improved gun tacker of the present disclosure is designed to accommodate different types of fastening members, including but not limited to staples, nails, pins or the like, allowing for versatility in its use across various materials. The improved gun tacker is adapted to handle different types of fastening member on its own. The user may load the fastening members as per the requirements and is not required to operate any switch or selector to select to use a specific type of fastening member.

The improved gun tacker of the present disclosure is designed to facilitate seamless transitions between different fastening members on its own, enabling users to switch quickly and easily without the need to operate any switch or selector. This is achieved through the implementation of an improved fastening member guiding mechanism that automatically adapts to accommodate various types of fastener members, such as staples, pins, nails or the like without requiring manual selection or adjustments. The improved gun tacker is, thus, designed to automatically align and guide the appropriate fastening member based on the type loaded, ensuring a smooth and consistent driving process regardless of the chosen fastener. Such an automatic adaptability eliminates the need for users to manually select or switch between different settings, saving time and reducing the risk of errors during operation.

BRIEF DESCRIPTION OF THE ACCOMPANYING DRAWINGS

The foregoing and other objects, features, and advantages of the present disclosure will be apparent from the following detailed description taken in conjunction with the accompanying drawings, wherein:
Figs. 1A & 1B illustrate side views of a gun tacker with one of the side housing removed according to some examples of the present disclosure;
Figs. 2A & 2B illustrate details C & D respectively of Figs. 1A & 1B;
Fig. 3 illustrates an exploded perspective view of the components of a fastening member guiding unit of the improved gun tacker according to some examples of the present disclosure;
Figs. 4A & 4B illustrate a top and side view respectively of a guiding plate according to some examples of the present disclosure.
Fig. 5A, 5B, 5C & 5D illustrate guiding of various implementations of the fastening members according to some examples of the present disclosure;
Fig. 6A & 6B illustrate the implementations of guiding of a fastening member according to some examples of the present disclosure.
Fig. 7A, 7B & 7C illustrate one of the conditions of implementations of guiding of a fastening member according to some examples of the present disclosure.
Fig. 8A, 8B & 8C illustrate one of the conditions of implementations of guiding of a fastening member according to some examples of the present disclosure.
Fig. 9A, 9B & 9C illustrate one of the conditions of implementations of guiding of a fastening member according to some examples of the present disclosure.
Fig. 10A, 10B & 10C illustrate one of the conditions of implementations of guiding of a fastening member according to some examples of the present disclosure.

DETAILED DESCRIPTION

Aspects of the presently disclosed disclosure will now be described in detail with reference to the drawings wherein like reference numerals designate identical or corresponding elements. In the drawings and in the description, the term "proximal", "bottom", "down" or "lower" refers to a location on the device that is closest to a user using the device. Conversely, the term "distal", "top", "up" or "upper" refers to a location on the device that is farthest from the user using the device. For example, the distal region of staple pin will be the region of the staple crown.

As used herein, the terms first, second, third, etc. are understood to describe structures/elements which may be same or different so as to distinguish one from another. However, the terms are not structurally limiting unless the context indicates otherwise.

Moreover, the Figures may show simplified or partial views, and the dimensions of elements in the Figures may be exaggerated or otherwise not in proportion for clarity. In addition, the singular forms "a," "an," and "the" include plural referents unless the context clearly dictates otherwise. Thus, for example, reference to a terminal includes reference to one or more terminals. In addition, where reference is made to a list of elements (e.g., elements a, b, c), such reference is intended to include any one of the listed elements by itself, any combination of less than all of the listed elements, and/or a combination of all of the listed elements. As used herein, the term "and/or" includes any and all combinations of one or more of the associated' listed items.

Referring to the accompanying drawings in detail, and particularly Figs. 1A & 1B, a gun tacker 54 constructed in accordance with the present disclosure is illustrated. The gun tacker 54 of generally a known construction includes a housing 56, a handle 58 for user operation, and a finger hole opening 60 which facilitate user interaction and operation. The housing 56 serves as the main body of the gun tacker 54 and is designed to house the internal driving mechanisms of known construction necessary for its operation including a front end 62 and a base 64. At the front end 62 of the housing 56, a guiding unit assembly 10 is integrated which plays a crucial role in directing the movement of a driving striker plate 16. The base 64 of the housing 56 includes a fastening member supply assembly 12. The fastening member supply assembly 12 comprises a fastening member guide unit 14 to guide the fastening members 40 as shown in Figs. 1A, 1B & 5D, such as staple pins along its guide rails. As will be apparent to those skilled in the art, fastening members 40 for example, staples contained in a magazine are mounted in the fastening member supply assembly 12 in the base 64 of the gun tacker 54. The mounted staples are discharged by the driving striker plate 16 operated in the gun tacker’s 54 guiding unit assembly 10 at the front end 62 when the handle 58 of the gun tacker 54 is depressed by a user. When the gun tacker 54 operated by the user depressing the handle 58 drives the striker plate 16 downwardly to engage a staple housed in the fastening member supply assembly 12 drives it out of the supply assembly 12 through a bottom edge opening 66 in the housing 56 and into the work surface or workpiece.

As illustrated in Figs. 1A & 1B, the finger hole opening 60 is strategically positioned to allow for a comfortable grip and control during operation of the gun tacker 54 ensuring that the user can apply the necessary force to the handle without compromising precision or safety. When the gun tacker 54 is operated, the bottom edge of the front end 62 of the housing 56 is firmly engaged against a workpiece (not shown). Upon activation, the staple housed within the fastening member supply assembly 12 is then propelled into the workpiece through the bottom edge opening 66 of the housing 56 to a depth within the workpiece dependent upon the power of the staple driving arrangement in the housing 56 and the length of the fastening member 40, for example leg of the staples being utilized. Such fastening member driving arrangements are well known to those skilled in the art, and therefore are not described herein in detail.

Referring now to Fig. 3, an exploded view of the components of the guiding unit assembly 10 of the improved gun tacker 54 according to the present disclosure is shown. The guiding unit assembly 10 being engageably integrated with the fastening member supply assembly 12 as shown in Figs. 1A, 2A & 2B are integrally positioned inside the gun tacker housing 56. The fastening member supply assembly 12 comprises a fastening member guide unit 14 to guide the fastening members along its guide rails being positioned facing the guiding unit assembly 10.

The guiding unit assembly 10 comprises at least one striker plate 16, at least one guiding plate 18, one or more slider insert(s) 20 and one or more flexible member(s) 22 as shown in Figs. 2A & 2B. In some examples, as illustrated in Fig. 3, not being limited to, the guiding unit assembly 10 includes at least three slider inserts 20 i.e. a first slider insert 20a, a second slider insert 20b, and a third slider insert 20c. It is to be understood that the numbers of slider inserts 20 are not limited to depicted illustrations and may vary. Each of the slider insert(s) 20 has an inner 68a and an outer 68b sidewall as shown in Figs. 5A & 5C. The guiding plate 18 has a body 34 with a proximal end 36 and a distal end 38, designed to facilitate the proper alignment and movement of the fastening members 40. The guiding plate 18 further has a proximal face 24 and a distal face 26. The guiding plate 18 being vertically oriented in an axial direction A within the guiding unit assembly 10 in a position that the distal face 26 of the guiding plate 18 faces the fastening member supply assembly 12. The distal face 26 of the guiding plate 18 is designed to ensure optimal interaction with the fastening member supply assembly 12, enhancing the overall functionality of the gun tacker 54. Additionally, the guiding plate 24 is provided with at least one slot 28 passing the proximal face 24 thoroughly to the distal face 26 and extending in the axial direction A. The slot 28 engageably receives the slider inserts 40. The guiding plate 18 guides the striker plate 16 and fastening members 40.

Referring now to Figs. 4A & 4B, the distal face 26 of the guiding plate 24 is provided with at least one pair of guiding grooves 30, each with a two-step configuration 42. The two step configuration 42 comprises a first step and a second step. Such a two-step configuration 42 creates a space 32 in between the grooves 30, with a left side and a right side. The two-step configuration 42 further defines two distinct spaces: a space 32a which is the area between the first step of the two-step configuration 42 and a space 32b which is the area between the second step of the two-step configuration 42 as shown in Figs. 5A & 5B. The two-step configuration 42 of the guiding grooves 30, thus, serves a crucial purpose in that it allows for the accommodation of fastening members 40 with varying shapes and dimensions, as illustrated in Figs. 5A-5D. The first step providing space 32a is suitable for receiving narrower or smaller fastening members 40, while the second step creates a space 32b capable of accommodating wider or larger fastening members 40. Such an adaptability ensures that the guiding plate 24 can effectively guide and direct a diverse range of fastening members 40 into the workpiece during the tacking process.

As shown in Figs. 5A to 5D, the guiding grooves 30 play a crucial role in the operation of the gun tacker 54 by facilitating the movement of the striker plate 16 or fastening members 40 to slide through the designated spaces 32, including space 32a or 32b, within the guiding grooves 30 in a direction opposite to the axial direction A.

As an example shown in Fig. 5A, a fastening member 40, for example a staple pin with a flat crown is positioned to slide within the space 32b, adjacent to the slider insert 20. Fig. 5B depicts another staple pin 40 with a flat crown, but this one is arranged within the space 32a adjacent the slider insert 20, demonstrating the versatility of the guiding grooves 30. In Fig. 5C, a staple pin 40 having a round crown is arranged within the space 32a wherein one side of the staple pin 40 is supported by the inner sidewall 68a of the slider insert 40 and the other side of the staple pin 40 is supported by an endwall 70 of space 32. Furthermore, one of the guiding grooves 30 includes an open area 52, which is specifically designed to guide and accommodate fastening members 40, for example, nails as shown in Fig. 5D among fastening members 40 of other varying shapes and dimensions. The fastening members 40, including staple pins and nails of varying shapes and dimensions, are efficiently guided within the fastening member supply assembly 12, which is strategically arranged within the gun tacker 54, ensuring precise and reliable operation during tacking tasks. Such a design not only improves the efficiency of the gun tacker 54 but also broadens its applicability across different fastening scenarios.

In some examples, as shown in Figs. 3, 4A & 4B, 5A to 5D, 6A, 6B include at least three slider inserts 20 i.e. a first slider insert 20a, a second slider insert 20b, and a third slider insert 20c. The slider inserts 20 being arranged in an area in the left side of the space 32. It is to be understood that alternatively, the slider inserts 20 may be arranged in an area on the right side of the space 32 and further alternatively, the slider inserts may be arranged in an area on both the left and/or the right side of the space 32 depending upon varying shapes and dimensions of the fastening members 40. Each of the slider inserts 20 has a supporting end 44 and a slidable end 46 as shown in Fig. 3. The slidable end 46 of the slider insert 20 is slidably disposed within the slot 28 provided in the guiding plate 18. Being arranged within the slot 28, slidable end 46 of the slider insert 20 protrudes out of the proximal face 24 of the guiding plate 18 and the supporting end 44 protrudes out of the distal face 26 of the guiding plate 18. The supporting end 44 of each of the slider inserts 20 provided with a hole 72 configured to receive a flexible member 22 as shown in Fig. 3. The flexible member(s) 22 are engageably received within the hole(s) 72 in a manner to exert force on the slider inserts 20 ensuring to keep the slidable end 56 thereof in an upward position as shown in Figs. 5A to 5D. The flexible member(s) 22 comprises a spring constructed from either a flexible plastic material or a metal material or any other flexible material, which provides the necessary resilience and adaptability required for effective operation.

Referring now to Figs. 6A & 6B, each of the slider insert(s) 20 adapted to be slidable between a first position i.e. a position prior to use and a second position i.e. a position during use. The slidable end 46 of the slider insert 20 at its top surface, not being limited to, has a tapered profile 48 having a slope at an angle adjoined to a flat surfaced profile 50. The slope of the tapered profile 48 of the slider insert 20 faces the striker plate 16. In first position i.e. prior to use, the slidable end 46 of the slider inserts 20 i.e. the first slider insert 20a, the second slider insert 20b and the third slider insert 20c are adapted to remain in a protruded form extending in an upward direction by means of the flexible member 22. In a second position i.e. during use when the striker plate 16 slides down in a direction opposite to the axial direction A to drive a fastening member 40, for example a staple pin as shown in Fig. 6B, the striker plate 16 is received by the tapered profile 48 of the first slider insert 20a pushing the first slider insert 20a down in that the flat surfaced profile 50 of the first slider insert 20a pushed to the level of the slope end of the tapered profile 48 of the adjacent second slider insert 20b. Thus, during use i.e. in the second position it can be seen in Fig. 6B, the first slider insert 20a is pushed down by the striker plate 16 while the second 20b and third slider insert 20c remain in a protruded form extending in an upward direction being ready to guide the fastening member 40 i.e. the staple pin out of the guiding plate 18 for tacking repeating the similar cycle of sliding steps moving through the slope end of tapered profile to the level of the flat surfaced profile of the slider insert(s) 20.

To explain further, the features of the slider inserts 20 and the implementation of said first position is shown in greater detail in Figs. 7A-7C, wherein in an idle condition i.e. prior to use, all the slider inserts 20 including the first slider insert 20a, the second slider insert 20b and the third slider insert 20c remain in an upward direction due to the force exerted by the flexible member (22). Whereas in the implementation of said second position, which is illustrated in greater detail in Figs. 8A-8C, the first slider insert 20a once being pressed by the moving striker plate 16 is pressed downward while the second slider insert 20b and the third slider insert 20c remain in upward direction being ready to guide the fastening member 40 i.e. the staple pin out of the guiding plate 18.

Moving to the next driving implementation as shown in greater detail in Fig. 9A-9C, both the first slider insert 20a and the second slider insert 20b once being pressed by the moving striker plate 16 are pressed downward while the third slider insert 20c remains in upward direction being ready to further guide the fastening member 40 i.e. the staple pin out of the guiding plate 18.

Moving further to the next driving implementation as shown in greater detail in Fig. 10A-10C, all the slider insert(s) 20 including the first slider insert 20a, the second slider insert 20b and the third slider insert 20c once being pressed by the moving striker plate 16 are pressed downward and continue to guide the fastening member 40 i.e. the staple pin out of the guiding plate 18 and into the work surface for tacking.

The slider insert(s) 20 thus has a to and fro movement being triggered by the movement of the striker plate 16 and due to the force exerted by the flexible member(s) 22 as depicted in Figs. 6A to 10C to thoroughly guide the fastening members 40, for example, staples out of the gun tacker 54 ensuring accurate alignment and stability of the fastening members 40 during their travel path, thereby reducing the likelihood of bucking, twisting, or misfiring upon impact with the work surface.

The slider insert(s) 20 including slider inserts 20a, 20b, 20c are primarily made of plastic, although it can also incorporate other materials depending on the design and intended use of the gun tacker 54. The use of plastic is advantageous due to its lightweight nature and resistance to corrosion, which enhances the durability and functionality of the tacker 54. It is to understood that the other variations may include metal or composite materials to provide extra strength or wear resistance, ensuring the slider insert(s) 20 can withstand repeated use without failure. This combination of materials allows for efficient operation while maintaining the overall integrity of the gun tacker 54 during various applications.

It is to be understood that the terms "comprises" "comprising," "includes" and/or "including" when used herein, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this present disclosure belongs. It will be further understood that terms used herein should be interpreted as having a meaning that is consistent with their meaning in the context of this specification and the relevant art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.

While aspects of the present disclosure have been described in detail with reference to the illustrated embodiments and/or examples, those skilled in the art will recognize that many modifications may be made thereto without departing from the scope of the present disclosure. The present disclosure is not limited to the precise construction and compositions disclosed herein; any and all modifications, changes, and variations apparent from the foregoing descriptions are within the spirit and scope of the disclosure as defined in the appended claims. Moreover, the present concepts expressly include any and all combinations and sub combinations of the preceding elements and features. The description is provided for clarification purposes and is not limiting. Words and phrases are to be accorded their ordinary, plain meaning unless indicated otherwise.
List of reference numerals:

10 guiding unit assembly
12 fastening member supply assembly
14 fastening member guiding unit
16 striker plate
18 guiding plate
20 slider insert(s)
20a, 20b, 20c first, second, third slider inserts
22 flexible member(s)
24 proximal face
26 distal face
28 slot
30 guiding groove
32, 32a, 32b space
34 body
36 proximal end
38 distal end
40 fastening member
42 two step configuration
44 supporting end
46 slidable end
48 tapered profile
50 flat surfaced profile
52 open area
54 gun tacker
56 housing
58 handle
60 finger hole opening
62 front end
64 base
66 bottom edge opening
68a, 68b inner & outer side wall
70 endwall
72 hole
A axial direction
,CLAIMS:1. A gun tacker (54) for driving fastening members (40) of various shapes and sizes into a work surface or a work piece comprising:
a housing (56) having a front end (62) and a base (64);
a handle (58) for user operation; and
a finger hole opening (60) to facilitate user interaction and operation;
wherein the gun tacker (54) further includes:
a guiding unit assembly (10) integrated within the front end (62) of the housing (56);
a fastening member supply assembly (12) integrated within the base (64) of the housing (56); and
wherein the guiding unit assembly (10) comprises:
at least one striker plate (16);
at least one guiding plate (18);
one or more slider insert(s) (20); and
one or more flexible member(s) (22).

2. The gun tacker (54) as claimed in claim 1, wherein the fastening member supply assembly (12) comprises a fastening member guide unit (14) to guide the fastening members (40) along its guide rails being positioned facing the guiding unit assembly (10).

3. The gun tacker (54) as claimed in claim 1, wherein the housing (65) comprises a bottom edge opening (66).

4. The gun tacker (54) as claimed in claim 1, wherein the guiding plate (18) has a body (34) with a proximal end (36) and a distal end (38), the body (34) further comprising a proximal face (24) and a distal face (26).

5. The gun tacker (54) as claimed in claim 4, wherein the guiding plate (18) is vertically oriented in an axial direction (A) within the guiding unit assembly (10) in a position that the distal face (26) of the guiding plate (18) faces the fastening member supply assembly (12).

6. The gun tacker (54) as claimed in claim 4, wherein the guiding plate (18) is provided with at least one slot (28) passing the proximal face (24) thoroughly to the distal face (26) and extending in the axial direction (A) to engageably receive the slider inserts (20).

7. The gun tacker (54) as claimed in claim 4, wherein the distal face (26) of the guiding plate (24) is provided with at least one pair of guiding grooves (30), each having a two-step configuration (42), wherein the two-step configuration (42) comprising a first step and a second step.

8. The gun tacker (54) as claimed in claim 7, wherein the two-step configuration (42) defines two distinct spaces, comprising a space (32a) being an area between the first step of the two-step configuration (42) and a space (32b) being an area between the second step of the two-step configuration (42).

9. The gun tacker (54) as claimed in claim 7, wherein one of the guiding grooves (40) includes an open area (52) designed to guide and accommodate fastening members, including nails.

10. The gun tacker (54) as claimed in claim 1, wherein the slider insert(s) (20) includes a supporting end (44) and a slidable end (46).

11. The gun tacker (54) as claimed in claim 10, wherein the supporting end (44) of the slider insert(s) (20) is provided with a hole (72) configured to receive the flexible member (22).

12. The gun tacker (54) as claimed in claim 10, wherein the slidable end (46) of the slider insert(s) (20) includes a tapered profile (48) on its top surface, the tapered profile (48) having a slope that transitions to a flat surfaced profile (50).

13. The gun tacker (54) as claimed in any of the preceding claims, wherein the slidable end (46) of the slider insert (20) protrudes from the proximal face (24) of the guiding plate (18), and the supporting end (44) protrudes from the distal face (26) of the guiding plate (18), with the supporting end (44) being engageably received in the slot (28).

14. The gun tacker (54) as claimed in any of the preceding claims, wherein the slidable end (46) of the slider insert(s) (20) adapted to remain in a protruded position, extending upward, due to the force exerted by the flexible member(s) (22).

15. The gun tacker (54) as claimed in claim 1, wherein the fastening members (40) include staples, pins, nails or the like, of various shapes and sizes.