4. Description

TECHNICAL FIELD

[001] The present disclosure generally relates to a hinge assembly and in more particular to a hinge assembly with plastic bushes.

BACKGROUND

[002] Generally, a hinge pivotally connects to a cover and a base of an electrical appliance and has a stationary-positioning element, a rotating-positioning element and a buffering spacer. The stationary-positioning element is mounted securely in the base and has at least one positioning protrusion. The rotating-positioning element is mounted securely in the cover and has at least one positioning detent corresponding to the positioning protrusion when the cover is closed. The buffering spacer is attached to the rotating-positioning element to let the stationary-positioning element and the rotating-positioning element in constant contact, which results in friction between the stationary-positioning element and the rotating-positioning element.

[003] Typically, the hinge assembly of freezer doors are pivotally mounted adjacent to their lower end body of the freezer by utilizing a counterbalancing compression spring which is included with in the door. The long counterbalancing compression springs are used in this type of hinge assembly for doors. While opening and closing operations of the door the spring and moving parts of the door generate a friction, noise and cracks on riveted joints. And if the pivot assembly is too lose then the noise appear due to the metal to metal rubbing, and additionally tend to be noisy in rubbing on the door covers

[004] In the light of aforementioned discussion there exists a need of a hinge assembly with plastic bushes.

BRIEF SUMMARY

[005] The following presents a simplified summary of the disclosure in order to provide a basic understanding to the reader. This summary is not an extensive overview of the disclosure and it does not identify key/critical elements of the invention or delineate the scope of the invention. Its sole
purpose is to present some concepts disclosed herein in a simplified form as a prelude to the more detailed description that is presented later.

[006] A more complete appreciation of the present disclosure and the scope thereof can be obtained from the accompanying drawings which are briefly summarized below and the following detailed description of the presently preferred embodiments.

[007] Exemplary embodiment of the present disclosure of a hinge assembly with plastic bushes is used to eliminate the metal to metal contact between the moving parts and makes the hinge noise free and lubrication free from synthetic lubricants which may include but not limited to lubricant oils, grease and the like.

[008] Exemplary embodiment of the present disclosure of a hinge assembly provides a lubricant nature to reduce the friction between the hinges.

[009] Another exemplary embodiment of the present disclosure of a hinge assembly with plastic bushes is also used to provide the free movement of the hinges.

[0010] Exemplary embodiments of the present disclosure are directed towards a noise free hinge assembly. According to a first aspect, the noise free hinge assembly includes one or more plastic pin bushes enclosing a fixed pin solid of a hinge door bracket for securing a fixed frame of a door. The hinge door bracket coupled with the fixed frame of a door to protect the hinge door bracket from movements generated by opening and closing positions of the door. The one or more plastic pin bushes configured to secure sliding parts of the hinge assembly.

[0011] According to the first aspect, the noise free hinge assembly includes a plastic semi circular bush placed between a spring holder and the hinge door bracket configured to fix with a sliding pin mourned in the hinge door bracket. The sliding pin enabled to couple the spring holder mounted in a sliding frame to the hinge door bracket. The plastic semi circular bush arranged at the ends of the hinge door bracket to eliminate the metal to metal rubbing noise in opening and closing positions of the door.

[0012] According to the first aspect, the noise free hinge assembly includes a plastic spring bush secured between the spring holder and a hinge spring for reducing friction generated by opening and closing positions of the door. The required movements in opening and closing positions of the door to be enabled by the hinge spring mounted in a hinge bracket. The plastic spring bush configured to reduce the friction between the fixed frame of the door and the sliding frame of the door, noise free hinge assembly further includes a spring support mounted in the hinge bracket configured for the-movement of the hinge spring.

BRIEF DESCRIPTION OF DRAWINGS

[0013] Other objects and advantages of the present disclosure will become apparent to those skilled in the art upon reading the following detailed description of the preferred embodiments, in conjunction with the accompanying drawings, wherein like reference numerals have been used to designate like elements, and wherein:

[0014] FIG. 1 is a diagram depicting an arrangement of the plastic bushes in the hinge assembly.

[0015] FIG. 2 is a diagram depicting an isotropic view of the hinge assembly.

[0016] FIG.3 is a diagram depicting a noise free plastic hinge parts of the hinge assembly.

DETAIL DESCRIPTION

[0017] It is to be understood that the present disclosure is not limited in its application to the details of construction and the arrangement of components set forth in the following description or illustrated in the drawings. The present disclosure is capable of other embodiments and of being practised or of being carried out in various ways. Also, it is to be understood that the phraseology and terminology used herein is for the purpose of description and should not be regarded as limiting.

[0018] The use of "including", "comprising" or "having" and variations thereof herein is meant to encompass the items listed thereafter and equivalents thereof as well as additional items. The terms "a" and "an" herein do not denote a limitation of quantity, but rather denote the presence of at least one of the referenced item. Further, the use of terms "first", "second", and "third", and the like, herein do not denote any order, quantity, or importance, but rather are used to distinguish one element from another. For a better understanding, components of the described embodiment are labeled with three digit component numbers. In general, the same first digit is used throughout the entire component numbers numbered and labeled within a figure. Like components are designated by like reference numerals throughout the various figures.

[0019] Referring to FIG. 1 is a diagram 100 depicting an arrangement of the plastic bushes in the hinge assembly. According to a non limiting exemplary embodiment of the present disclosure, a hinge assembly includes a hinge bracket 102, a hinge spring 104, a spring holder 106, a washer 108. a plastic spring bush 110, a spring support 112, a support bracket 114, a hinge door bracket 116, a fixed pin solid 118, a plastic pin bush 120, a sliding pin 122, a plastic semi circular bush 124 and a semi circular bush 126.

[0020] In accordance with a non limiting exemplary embodiment of the present disclosure, the hinge door bracket 116 having a fixed pin and the sliding pin 122 for securing the sliding parts of the door. A pair of plastic pin bushes is used to enclose the two ends of the fixed pin solid 118 for protecting the hinge door bracket 116 from the metal to metal noise generated by the opening and closing positions o! the door. The sliding parts mounted in the hinge bracket 102 are coupled with the hinge door bracket 116 by affixing the spring holder 106 with the sliding pin 122 through the plastic semi circular bush 124 and the semi circular bush 126. The plastic semi circular bush 124 placed between the spring holder 106 and the hinge door bracket 116 is used for keeping the sliding pin 122 in tension up to a required opening and closing positions of the door by utilizing a spring holder 106.

[0021] In accordance with a non limiting exemplary embodiment of the present disclosure, the plastic-spring bush 110 is placed between the hinge spring 104 and the spring holder 106 for reducing the friction generated by the opening and closing positions of the door. The washer 108 is arranged at a top of the plastic spring bush 110 for providing noise free movements of the hinge spring 104. Thus the plastic bushes provided in the hinge assembly protect the moving parts from dust, rust and any noise generated by opening or closing positions of the door.

[0022] Referring to FIG. 2 is a diagram 200 depicting an isometric view of the plastic bushes in the hinge assembly. According to a non limiting exemplary embodiment of the present disclosure, a hinge assembly includes a hinge bracket 202, a hinge spring 204, a spring holder 206, a washer 208, a spring support 212, a support bracket 214, a hinge door bracket 216, a fixed pin solid 218, a plastic pin bush 220, a sliding pin 222, a plastic semi circular bush 224 and a semi circular bush 226.

[0023] In accordance with a non limiting exemplary embodiment of the present disclosure, the hinge door bracket 216 fastened to a fixed frame of a door is coupled with the hinge bracket 202 which is fastened to a sliding frame of the door. The two ends of the fixed pin solid 218 of the hinge door bracket 216 is covered by the plastic pin bushes 220 for protecting the fixed frame of the door from the metal to metal noise generated by the movements of the sliding parts mounted in the hinge assembly. The sliding pin 222 mounted in the hinge door bracket 216 is used to couple the hinge bracket 202 through the spring holder 206. The plastic semi circular bush 224 is fixed at the coupling point of the spring holder 206 coupled with the semi circular bush 226 and the sliding pin 222 of the hinge door, bracket for fixing tightening up to a required opening and closing positions of the door to avoid the unwanted friction and torque.

[0024] In accordance with a non limiting exemplary embodiment of the present disclosure, the hinge spring 204 holds the spring holder 206 for providing required movements between the hinge door bracket 216 and the hinge bracket 202. The spring support 212 is used to support the movements of the hinge spring 204 by utilizing a spring support bracket 214 which are placed at the end of the hinge spring 204 mounted in a hinge bracket 202. The plastic spring bush and the washer 208 are arranged at the another end of the hinge spring 204 for reducing torque between the fixed frame and the sliding frame while the movements of opening and closing positions of the door.

[0025] Referring to FIG. 3 is a diagram 300 depicting a noise less plastic hinge parts of the hinge assembly. According to a non limiting exemplary embodiment of the present disclosure, a hinge assembly includes a plastic spring bush 302, a plastic semi circular bush 304 and a plastic pin bush 306.
[0026] In accordance with a non limiting exemplary embodiment of the present disclosure, the plastie spring bush 302 is placed between the hinge spring 204 and the spring holder 206 as mentioned in the FIG. 2. The hinge spring 204 is made from the steel or annealed steel and the spring holder 206 is made from the steel or iron. While the movements of closing and opening positions of the door, the plastie spring bush 302 is used to protect the torque between the hinge spring 204 and the spring holder 206 for providing a noise less movements of the door. The plastic semi circular bush 304 is placed between the spring holder 206 and the hinge door bracket 116 and the spring holder 206 is used for keeping the sliding pin 222 up to a required opening and closing positions of the door. The plastic pin bush 306 is used to enclose the two ends of the fixed pin solid 218 for securing the hinge door bracket 216 and generate noiseless movements to the sliding parts of the hinge assembly.

[0027] While specific embodiments of the disclosure have been shown and described in detail to illustrate the inventive principles, it will be understood that the invention may be embodied otherwise without departing from such principles.

5. CLAIMS:
What is claimed is

1. A noise free hinge assembly comprising:

one or more plastic pin bushes enclosing a fixed pin solid of a hinge door bracket for securing a fixed frame of a door, whereby the hinge door bracket coupled with the fixed frame of a door to protect the hinge door bracket from movements generated by opening and closing positions of the door;

a plastic semi circular bush placed between a spring holder and the hinge door bracket configured to fix with a sliding pin mounted in the hinge door bracket, whereby the sliding pin enabled to couple the spring holder mounted in a sliding frame to the hinge door bracket; and

a plastic spring bush secured between the spring holder and a hinge spring for reducing friction generated by opening and closing positions of the door, whereby the required movements in opening and closing positions of the door to be enabled by the hinge spring mounted in a hinge bracket.

2. The noise free hinge assembly of claim 1, wherein the plastic spring bush configured to reduce the friction between the fixed frame of the door and the sliding frame of the door.

3. The noise free hinge assembly of claim 1, wherein the one or more plastic pin bushes configured to secure sliding parts of the hinge assembly.

4. The noise free hinge assembly of claim 1, wherein the plastic semi circular bush arranged at the ends of the hinge door bracket for controlling the metal to metal noise generated by the movements of opening and closing positions of the door.

5. The noise free hinge assembly of claim 1, wherein a spring support mounted in the hinge bracket configured for the movement of the hinge spring.

6. The noise free hinge assembly of claim 1, further comprising a step of providing noise free from synthetic lubricants by utilizing lubricating oils; and grease.