KR101810076B1

KR101810076B1 - Damping Hinge Assembly for Food Container

Info

Publication number: KR101810076B1
Application number: KR1020160013439A
Authority: KR
Inventors: 장명열
Original assignee: 주식회사 타이거
Priority date: 2016-02-03
Filing date: 2016-02-03
Publication date: 2017-12-19
Also published as: KR20170092738A

Abstract

The present invention uses a bidirectional damper to provide a smooth and smooth opening operation without generating a resistance force when the lid is opened, and when the lid is closed, resistance is generated so that the lid does not rapidly close due to its own weight, The present invention relates to a damping hinge assembly for a food container, and a damping hinge assembly for a food container, the damping hinge assembly comprising: A hinge housing fixedly installed on one side; A bidirectional damper rotatably installed inside the hinge housing and generating resistance in both directions; A ratchet gear mounted on the outer side of the bidirectional damper and rotating inside the hinge housing together with a bidirectional damper; A hinge housing rotatably installed in an escape groove of the hinge housing to limit rotation of the ratchet gear; And a rotating shaft member coupled to a central portion of the bi-directional damper through the shaft passage hole of the hinge housing and rotated by an external force, one end of which is connected to the one side of the cover at the outside of the hinge housing, And a protruding portion contacting the upper surface of the latch is formed on the upper surface of the escape groove so as to be convex downward.

Description

[0001] Damping Hinge Assembly for Food Container [0002]

More particularly, the present invention relates to a hinge device for a food container, and more particularly, to a hinge device for a food container, which is rotatably connected to a main body of a food container, wherein smooth and smooth opening operation is performed during opening operation of the lid, The damping hinge assembly of the food container is configured such that the lid is not rapidly closed due to its own weight and can be closed while being slowly lowered.

Generally, in a buffet restaurant or the like, various foods are stored in a food container called a chafing dish so that the food can be consumed by various people. I put it on a plate, I go to another cooking dish, and I am able to eat it by taking out the desired food.

The cooking utensils need to be hygienically managed since they are used by various people. In addition, in case of foods to be warmed, the cooking utensils are heated by a heating means such as a burner or the like, Is opened at an angle to relieve food or to fill food in the port, the chaking dish cover can be fully opened and lifted to adjust the opening angle of the chaking dish cover.

In addition, the choking dish uses a damping hinge device having a damper that provides a resistance to a connecting portion between the cooking dish lid and the main body so that the lid is not closed at a high speed by its own weight after opening the lid.

The damping hinge device used in the conventional choking dish has a one-way damper which does not generate a resistance force so that the lid can be easily opened even with a small force when the lid is opened, and generates a resistance force so as not to be rapidly closed by its own weight after the lid is opened I am using it.

However, such a one-way damper is structurally complicated and requires a high level of technological power as compared with a bidirectional damper, so that the cost is high, which causes a problem that the entire manufacturing cost of the choking dish is increased.

Korean Registered Patent No. 10-1469067 (Registered on November 28, 2014) Korea Registered Utility Model No. 20-0464513 (Registered on December 28, 2012) Korean Registered Utility Model No. 20-0280995 (registered on June 25, 2002)

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to provide a damper of a bidirectional damper which is relatively inexpensive and does not generate a resistance force during opening operation of a lid, The damping hinge assembly of the food container can prevent the lid from being rapidly closed due to its own weight so that the lid is lowered and closed slowly and the lid is rapidly dropped by the malfunction after opening the lid, .

According to another aspect of the present invention, there is provided a damping hinge assembly for a food container, the damping hinge assembly comprising: a main body having an upper surface opened; and a food container rotatably connected to the main body, A damping hinge assembly comprising: a hinge housing fixedly installed at one side of a main body and having an axial passage hole formed at a central portion thereof and having an escape groove formed at an upper portion of the inner peripheral surface thereof; A bidirectional damper rotatably installed inside the hinge housing and generating resistance in both directions; A ratchet gear mounted on the outer side of the bidirectional damper and rotating inside the hinge housing together with a bidirectional damper; The ratchet gear is rotatably provided in an escape groove of the hinge housing. When the ratchet gear rotates in the opening operation direction of the lid, the ratchet gear is allowed to rotate while riding over the ratchet teeth of the ratchet gear. A latch for restricting rotation of the ratchet gear while being caught by the gear of the ratchet gear when the ratchet gear is rotated in the closing operation direction; And a rotating shaft member coupled to a central portion of the bi-directional damper through the shaft passage hole of the hinge housing and rotated by an external force, one end of which is connected to the one side of the cover at the outside of the hinge housing, And a protruding portion contacting the upper surface of the latch is formed on the upper surface of the escape groove so as to be convex downward.

According to the present invention, when the chucking dish is opened, the ratchet gear is naturally rotated without being caught by the latch, so that a smooth and smooth opening operation can be performed. When the lid is closed, the ratchet gear is caught by the latch Only the rotating portion of the bidirectional damper rotates while receiving the resistance, so that the lid is not closed rapidly but is closed gradually so that a stable closing operation can be realized.

In particular, when the lid is opened, the latch can be firmly lowered by its own weight without being in close contact with the inside of the escape groove, so that the ratchet gear can be held in a state of being bitten. Can be prevented.

1 is a perspective view illustrating a chafing dish as an example of a food container to which the damping hinge assembly according to the present invention is applied.
Fig. 2 is an exploded perspective view of the chopping dish of Fig. 1;
FIG. 3 is an exploded perspective view illustrating a damping hinge assembly installed on the left side of the dipping hinge assembly of the food container according to the embodiment of the present invention applied to the dipping hinge assembly of FIG. 1;
FIG. 4 is an exploded perspective view illustrating a damping hinge assembly installed on a right side of a dipping hinge assembly of a food container according to an embodiment of the present invention applied to the dipping hinge of FIG. 1;
Figure 5 is a side view of the damping hinge assembly of Figure 3;
Figure 6 is a side view of the damping hinge assembly of Figure 3;
Figure 7 is a front view of the damping hinge assembly of Figure 3;
8 is a perspective view illustrating a major portion of the damping hinge assembly of FIG.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of a damping hinge assembly for a food container according to the present invention will be described in detail with reference to the accompanying drawings.

Referring to FIGS. 1 and 2, a choking dish, which is a food container to which the damping hinge assembly of the present invention is applied, includes a main body 10 having an upper surface opened, A lid 20 installed at the rear end of the main body 10 and the lid 20 for opening and closing an upper portion of the main body 10 and a damping member 20 for rotatably connecting the lid 20 to the main body 10, And a hinge assembly (100).

A storage tray 30 for storing food can be additionally provided on the upper side of the main body 10. [ At the rear end of the main body 10, there is provided a support bracket 11 in which two damping hinge assemblies 100 are spaced apart from each other by a predetermined distance. A hinge bracket 21 connected to each of the damping hinge assemblies 100 is installed at the rear end of the lid 20. The hinge bracket 21 has a track-shaped groove with one side opened to form a hinge connection part 22 inserted into the damping hinge assembly 100 to be connected thereto.

3 through 8 illustrate a damping hinge assembly 100 according to an embodiment of the present invention. The damping hinge assembly 100 includes a hinge housing 100 fixed to a support bracket 11 of the main body 10 A rotation support part 120 fixed to one side of the hinge housing 110 and having a through hole 121 formed at a center thereof and a housing 120 fixedly connected to the other side of the hinge housing 110, A bi-directional damper 140 rotatably installed inside the space defined by the hinge housing 110 and the housing cover 111 and generating a resistance force in both directions; A ratchet gear 150 installed to be fitted to the hinge housing 110 and rotated together with the bidirectional damper 140 and a ratchet gear 150 rotatably installed in the hinge housing 110 to limit rotation of the ratchet gear 150 in one direction (160) having one end engaged with the rotation support And a rotating shaft member 170 fixed to a central portion of the hinge housing 110 and connected to the central portion of the bidirectional damper 140 to rotate together with the rotation supporting portion 120.

The lower end of the hinge housing 110 is fixedly coupled to the support bracket 11 of the main body 10 by fastening means such as screws. A shaft passage hole 112 through which the rotating shaft member 170 passes is formed at a central portion of the hinge housing 110 while communicating with the through hole 121 of the rotation supporting portion 120. An arc-shaped rotation restricting groove 113 for limiting the rotation range of the rotating shaft member 170 is formed at a predetermined angle range on one side of the shaft passage hole 112.

The latch 160 is rotatably installed at the upper end of the inner circumferential surface of the hinge housing 110. When the ratchet gear 150 rotates in the opening direction of the ratchet gear 150, An escape groove 114 is formed at an upper end of the inner circumferential surface of the hinge housing 110 so as to receive a part or all of the latch 160. The escape groove 114 is inclined to one side. When the upper surface of the escape groove 114 is flat, the upper surface of the latch 160 is prevented from clinging to the upper surface of the escape groove 114 by the lubricating oil or moisture existing in the hinge housing 110 In this case, since the ratchet gear 150 is not caught by the latch 160, the lid 20 may drop rapidly after opening the lid 20, causing a safety accident or a loud noise. As shown in FIG. 7, in order to prevent this phenomenon, a protrusion 114a protruding downward is formed at the middle portion of the upper surface of the escape groove 114 to prevent the detent 160 from sticking to the upper surface of the escape groove 114 .

A disk-shaped housing cover 111 is detachably coupled to one side surface of the hinge housing 110. To this end, a disk-shaped housing cover 111 is inserted into the rim portion of the housing cover 111 at one side edge portion of the hinge housing 110 A locking rib 115 is formed and a plurality of locking protrusions 116 having a long strip shape are formed on the outer surface of the locking rib 115 so as to extend along the circumferential direction. A plurality of locking protrusions 118 are formed on the inner circumferential surface of the rim of the housing cover 111 at predetermined intervals along the circumferential direction so that the locking protrusions 116 are engaged with the locking protrusions 116 in the circumferential direction. The distance between the plurality of locking protrusions 116 is slightly larger than the length of the locking protrusion 118 so that the locking protrusion 118 enters between the locking protrusions 116 and then the housing cover 111 is rotated, The housing cover 111 is firmly fixed to the hinge housing 110 so long as an external force is not applied to turn the housing cover 111.

At the center of the housing cover 111, there is formed a cylindrical axial alignment rib 119 into which one end of the rotation shaft member 170 is inserted to secure a concentric circle of the rotation shaft member 170.

The rotation support part 120 is in the form of a circular ring and is fixedly coupled to the outside of one side of the hinge housing 110 by fastening means such as a screw 117 and an insert nut 125. On the outer surface of the rotary support 120, a track-shaped rotation guide groove 122 is formed in one side direction in which the hinge connection portion 22 of the lid 20 is rotatably inserted.

The bidirectional damper 140 and the ratchet gear 150 are fixedly coupled to each other and are rotatably installed in an inner space of the hinge housing 110. The bidirectional damper 140 includes a ring-shaped damper housing 141 in which a mechanism for generating a resistance force in both directions is disposed, a damper housing 141 rotatably installed at the center of the damper housing 141 with respect to the damper housing 141, And a rotation unit 142 having a shaft hole 143 formed in a polygonal shape (approximately square in this embodiment) in which the polygonal shaft portion 172 of the rotating shaft member 170 is inserted and joined. The bidirectional damper 140 may be constructed by applying a known bidirectional damper. The damper housing 141 has a mechanism for generating a resistance against rotational movement in both directions by a fluid such as silicone oil.

A plurality of coupling grooves 144 are concaved on one side of the outer circumferential edge of the damper housing 141 and coupling projections 152 inserted into the coupling grooves 144 are formed on both sides of the ratchet gear 150, . Therefore, the bidirectional damper 140 and the ratchet gear 150 can rotate together inside the hinge housing 110 by the engagement between the engaging protrusion 152 and the engaging groove 144.

The engagement protrusions 152 of the ratchet gear 150 are formed on both sides of the ratchet gear 150 so that the advantage of enabling the ratchet gear 150 to be turned upside down when the ratchet gear 150 is applied to the opposite damping hinge assembly 100 . That is, since the damping hinge assembly 100 can be assembled by applying one ratchet gear 150 to both the damping hinge assemblies 100, it is possible to reduce maintenance and manufacturing costs of the parts.

The ratchet gear 150 has a ring shape in which a plurality of gear teeth 151, which are inclined in one direction, are continuously formed along the circumferential direction on the outer circumferential surface.

The ratchet gear 150 rotates the latch ratchet 150 when the latch ratchet 150 is rotated in the opening operation direction of the lid 20, And to limit the rotation of the ratchet gear 150 while being caught by the gear teeth 151 of the ratchet gear 150 when the ratchet gear 150 is rotated in the closing operation direction of the lid 20. [ The latch 160 is rotatably installed at the upper end of the inner circumferential surface of the hinge housing 110 by a U-shaped connecting pin 161. The latch 160 is formed at the upper end of the hinge housing 110. When the latch 160 is installed at the upper end of the hinge housing 110, the latch 160 is always rotated downward by its own weight, When the ratchet gear 150 is in contact with the surface of the chit gear 150 and rotates in the opening direction of the lid 20, the ratchet gear 150 naturally rides over the surface of the ratchet gear 150, Is automatically hooked on the gear teeth 151 of the ratchet gear 150 when rotating in the opposite direction, it is not necessary to construct a separate spring or the like for resiliently supporting the latch 160.

A pinhole 117 is formed at the upper end of the hinge housing 110 where the latch 160 is installed to insert the one side of the U-shaped connecting pin 161. As described above, in order to prevent the latch 160 from interfering with the gear teeth 151 of the ratchet gear 150 when the ratchet gear 150 is rotated in the opening operation direction, And an escape groove 114 in which the latch 160 is received is formed in the upper end of the inner circumference of the inner circumference of the inner circumference.

The rotation shaft member 170 is installed to pass through the shaft hole 112 of the hinge housing 110 and the through hole 121 of the rotation support part 120. The outer side portion of the rotating shaft member 170 protrudes to the outside through the through hole 121 of the rotation support portion 120 as a connecting portion 171 having a track shape in which both sides are chamfered to form a hinge connection portion 171 ). A rectangular parallelepiped shaft portion 172 is integrally formed on the inner side of the connection portion 171 to be fitted in the shaft coupling hole 143 at the center of the rotation portion 142 of the bidirectional damper 140. A cylindrical shaft alignment part 173 inserted into the shaft alignment rib 119 of the housing cover 111 is integrally formed at an inner end of the connection part 171. Accordingly, when the rotary shaft member 170 is installed at the center of the hinge housing 110 and the housing cover 111, the axial aligning portion 173 is inserted while being inserted into the axial alignment ribs 119, Can be installed while being concentrically aligned with the hinge housing 110 and the housing cover 111.

The connecting portion 171 of the rotating shaft member 170 is rotatably supported on the outer surface of the rotation supporting portion 120 by the e-type snap ring 181 to prevent its disengagement, and the shaft aligning portion 173, Is rotatably supported by the shaft alignment ribs (119) of the housing cover (111) by a spring (182) so as to be prevented from being released.

A stopper projection 174 which is disposed inside the rotation restriction groove 113 of the hinge housing 110 and moves inside the rotation restriction groove 113 is protruded radially outward from the side surface of the intermediate portion of the rotation shaft member 170 . The stopper protrusion 174 is formed in a smaller angle range than the rotation restricting groove 113 so that both ends of the rotation restricting groove 113 contact the both ends of the rotation restricting groove 113 when the rotation shaft member 170 is rotated. The rotation range of the rotation shaft member 170 by the rotation restricting groove 113 may be approximately 0 to 110 degrees.

The damping hinge assembly thus constructed operates as follows.

When the user holds the handle of the front end of the lid 20 and lifts the lid 20 upward to open the lid 20 in a state where the lid 20 is closed on the upper side of the main body 10 of the charger, The rotary cap 130 connected to the hinge bracket 21 rotates upward together with the hinge bracket 21. The rotary shaft member 170 connected to the rotary cap 130 and the bidirectional damper 140 and the ratchet gear 150 connected to the rotary shaft member 170 rotate counterclockwise in the drawing of FIG. .

At this time, the latch 160 is in contact with the surface of the ratchet gear 150 on the upper side of the ratchet gear 150, and the gear teeth 151 of the ratchet gear 150 are rotated So that the ratchet gear 150 is smoothly rotated without being caught by the latch 160. [0064] As shown in Fig. When the ratchet gear 150 rotates, the latch 160 naturally rides over the ratchet teeth 151 of the ratchet gear 150. At this time, the latch 160 rotates to the inside of the escape groove 114 The latch 160 is pulled into the escape groove 114 at the floor of the gear teeth 151 of the ratchet gear 150 so that the rotation is completely prevented and the latch 160 is lowered at the valley portion . Since the protrusion 114a protrudes downward on the upper surface of the escape groove 114, the upper surface of the detent 160 does not completely come into close contact with the upper surface of the escape groove 114, So that the phenomenon of sticking down to the groove 114 does not occur.

When the user opens the lid 20 at a predetermined angle of 90 degrees or less with respect to the main body 10 and then removes the lifting force or opens the lid 20 at 90 degrees or more, The ratchet gear 150 of the ratchet gear 150 is caught by the latch 160 so that the rotation of the ratchet gear 150 is restricted. The rotation part 142 of the bidirectional damper 140 connected to the damper housing 170 rotates slowly while being resisted by the resistance mechanism in the damper housing 141. Therefore, the lid 20 is not closed abruptly and is closed gradually during the closing operation.

As described above, according to the present invention, when the chucking dish is opened, the ratchet gear 150 is naturally rotated without being caught by the latch 160, so that a smooth opening operation can be performed. When the lid 20 is lowered by its own weight or the front end of the lid 20 is pressed downward by the user after the opening operation is completed, the ratchet gear 150 is rotated by the latch 160, Only the rotating part 142 of the bidirectional damper 140 rotates while receiving the resistance, so that the lid 20 is not closed abruptly and is closed gradually, so that a stable closing operation can be realized.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the present invention as defined by the appended claims. And it is to be understood that such modified embodiments belong to the scope of protection of the present invention defined by the appended claims.

10: Main body 11: Support bracket
20: lid 22: hinge connection
100: damping hinge assembly 110: hinge housing
111: housing cover 112: shaft passage hole
113: rotation restricting groove 114: escape groove
114a: protrusion 115: locking rib
116: locking protrusion 118:
119: Axial aligning rib 120:
121: through hole 122: rotation guide groove
140: bi-directional damper 141: damper housing
142: rotation part 143: shaft coupling hole
144: coupling groove 150: ratchet gear
151: gear 152: engaging projection
160: Staple 161: Connection pin
170: rotating shaft member 171:
172: shaft portion 173:
174: Stopper protrusion 181, 182: e-type snap ring

Claims

A damping hinge assembly for a food container for rotatably connecting a lid (20) provided on one side of a main body (10) and opening and closing a main body (10)
A hinge housing 110 fixed to one side of the main body 10 and formed with a shaft hole 112 at a central portion thereof and an escape groove 114 formed at an upper portion of the inner periphery thereof so as to be concave upward;
A bi-directional damper 140 rotatably installed inside the hinge housing 110 to generate resistance in both directions;
A ratchet gear 150 fitted to the outside of the bidirectional damper 140 and rotating inside the hinge housing 110 together with the bidirectional damper 140;
The gear 151 of the ratchet gear 150 is rotatably installed in the escape groove 114 of the hinge housing 110 so that when the ratchet gear 150 rotates in the opening direction of the lid 20, And when the ratchet gear 150 is rotated in the closing operation direction of the lid 20, the ratchet gear 150 is engaged with the gear teeth 151 of the ratchet gear 150, (160) for restricting the rotation of the body (150);
Direction damper 140 through the shaft hole 112 of the hinge housing 110 and one end of the hinge housing 110 is connected to one side of the cover 20 from the outside of the hinge housing 110 A rotating shaft member (170) rotated by an external force applied to the lid (20);
And a through hole 121 through which one end of the rotating shaft member 170 passes is formed at one side of the hinge housing 110 by a screw 117 and an insert nut 125, A rotation support part 120;
The housing cover 110 is coupled to the other side of the hinge housing 110 so as to close the hinge housing 110 and has a cylindrical axial alignment rib 119 aligned at the center thereof with one end of the rotation axis member 170 inserted therein. (111);
/ RTI >
A protrusion 114a which is in contact with an upper surface of the latch 160 is formed on the upper surface of the escape groove 114 to be convex downward,
A locking rib 115 is formed at one side edge portion of the hinge housing 110 to which the housing cover 111 is coupled and inserted into a rim portion of the housing cover 111, Locking protrusions 116 are formed to extend along the circumferential direction and a plurality of engaging protrusions 118 engaging with the locking protrusions 116 on the inner circumferential surface of the rim of the housing cover 111 are formed in the circumferential direction Are formed at regular intervals,
The rotary shaft member 170 has a connecting portion 171 formed in a track shape having a chamfered face on both sides and coupled to one side portion of the cover at the outer side of the rotary support portion 120 and a connecting portion 171 at a center portion of the connecting portion 171, Direction damper 140 and is coupled to the center of the bi-directional damper 140. The shaft portion 172 is formed at one end of the shaft portion 172 and extends in the axial direction of the housing cover 111, And a cylindrical axial alignment portion 173 inserted into the alignment ribs 119,
The connection portion 171 of the rotation shaft member 170 is rotatably supported on the outer surface of the rotation support portion 120 by an e-type snap ring 181. The axis alignment portion 173 is supported by an e-type snap ring 182, Is rotatably supported by the shaft alignment rib (119) of the housing cover (111).

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The hinge device according to claim 1, wherein an arc-shaped rotation restricting groove (113) is formed in a predetermined angular range on one side of the shaft hole (112) of the hinge housing (110) Wherein a stopper projection (174) is formed in the limiting groove (113) so as to protrude to restrict a rotation range of the rotary shaft member (170) while being caught by both end portions of the rotation restricting groove (113).