JPH04123989U - Sealing device for sliding doors in refrigerators, etc. - Google Patents

Abstract

(57) [Summary] [Purpose] When the sliding door is closed, the gasket inside the sliding door can be firmly pressed against the outer surface of the periphery of the storage opening, and the reaction force based on the elastic force of the gasket can be used to To provide a sealing device for a sliding door in a refrigerator, etc., which prevents the sliding door from being lifted upward, prevents the sliding door from returning to the open side once it has been closed, and maintains the inside of the refrigerator in an airtight state. do. [Configuration] At the bottom end of the sliding door (3) of the refrigerator (1), etc.
Rollers (7) (7) for preventing the lower end of the door from coming off are rotatably mounted around vertical shafts (8) (8). Place the separation prevention rollers (7) (7) at corresponding positions on the lower edge of the storage opening periphery (1a).
A door swing prevention member (10) (10) that guides the door gradually closer to the a) side and is equipped with a roller guide inclined part (12) (12) made of a leaf spring.
is attached to the free end of the roller guide ramp (12)(12)
(12b) There is a convex part near the tip of (12b) for roller detent (17) (1
7) is provided.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

This idea can be used, for example, to assemble large prefabricated refrigerators, freezers, storage rooms, or cold storage. This relates to the sealing device for sliding doors in refrigerators, etc. (hereinafter referred to as refrigerators, etc.). Ru.

0002

[Conventional technology]

In general, the sliding door installed in large prefabricated refrigerators closes the opening of the refrigerator. Press it against the outer surface of the periphery of the refrigerator door to prevent cold air from leaking when the door is locked. It has a structure that allows

0003 In order to seal such a sliding door, the applicant first installed the lower part of the refrigerator door. A pair of left and right conical rollers are placed on the edge, while a pair of conical rollers are placed on the bottom edge of the sliding door, tilting toward the door. We proposed a sealing device for sliding doors that is equipped with a door panel that has a sloped surface ( (Refer to Utility Model Application No. 2-34581).

0004 In the sliding door sealing device proposed in the future, when the sliding door is closed, The slanted surface of the door abutment plate is in contact with the slanted outer circumferential surface of the conical roller, and the sliding When the door's own weight is applied to the door abutment plate, the inclined surface of this plate becomes the inclined outer circumference of the conical roller. It slides downward along the surface, and the force eventually moves the door toward the periphery of the refrigerator entrance. Because the annular gasket attached to the inside of the door acts in the direction of It was pressed against the outer surface and made a close contact.

[0005]

[Problem that the idea aims to solve]

However, since the gasket inside the sliding door has elasticity, Due to the reaction force based on the elastic force of the kit, the sliding door moves away from the periphery of the storage door. The force is applied to the sloped surface of the door latch plate at the bottom of the door and the conical shape that is in contact with it. Eventually, the sliding door is moved upward via the slanted outer peripheral surface of the roller. There was a problem in that the cold air inside the refrigerator might leak out.

[0006] The purpose of this invention is to solve the above problem and to prevent the sliding door from sliding when the sliding door is closed. Firmly press the gasket on the inside of the storage door against the outer surface of the periphery of the storage door so that it is in close contact with the The sliding door is raised by the reaction force based on the elastic force of the gasket. It will not be lifted towards the side, and once closed, the sliding door will return to the side where it opens. In refrigerators, etc., which can reliably keep the inside of the refrigerator in an airtight state without We are trying to provide a sealing device for sliding doors.

[0007]

[Means to solve the problem]

In order to achieve the above-mentioned purpose, this invention aims to prevent the area around the opening of the refrigerator, etc. when closing the opening. On both the left and right sides of the bottom edge of the sliding door, which is pressed against the outer surface of the edge and brought into close contact. , rollers to prevent the door from coming off at the bottom edge of the door are attached so that they can rotate freely around vertical axes. In response to these, rollers to prevent the door from separating are installed on both the left and right sides of the lower edge of the storage door. A roller design that is guided gradually closer to the mouth periphery and is made of a leaf spring. A door swing prevention member with an inward slope is attached, and a roller guide slope made of a leaf spring is installed. The base of the slanted part on the side closer to the periphery of the storage door is fixed to the bottom wall of the door swing prevention member. , the opposite free ends are spaced apart from the bottom wall, and the tips of these free ends A refrigerator with a roller detent protrusion that protrudes toward the periphery of the storage opening on the side part. The gist is a sealing device for sliding doors in warehouses, etc.

[0008]

[Effect]

According to the above-mentioned sliding door sealing device, when the storage entrance of a refrigerator, etc. is closed, the sliding door The roller that prevents the lower edge of the door from separating from the lower edge of the door is aligned with the roller that prevents the door from swinging at the lower edge of the periphery of the storage compartment. The sliding door gradually approaches the periphery of the storage opening as it is guided by the sloped guide section. It is firmly pressed against the outer surface of the periphery of the mouth and is in close contact with the inside of the sliding door. Due to the reaction force based on the elastic force of the gasket, the sliding door can be damaged by the periphery of the refrigerator entrance. Of course, it will be lifted upwards without being separated from the refrigerator, causing the cold air inside the refrigerator to leak. There is no possibility that it happened.

[0009] Also, when the storage entrance is closed by the sliding door, the rollers on the sliding door side to prevent the door from separating The roller is guided by the roller guide inclined part of the swing prevention member, but the roller first moves along the inclined part. It hits the convex part for detenting the roller provided on the free end, and then the part forming the free end Push the protrusion for detenting the roller forward against the spring force of the leaf spring, and then remove the protrusion. Cross over and reach the base side. The convex portion immediately returns to its original state due to the action of the leaf spring. Therefore, once the sliding door is closed, the movement of the roller in the return direction causes this detent. Therefore, depending on external factors such as internal pressure, The inside of the refrigerator is reliably kept in a sealed state without the sliding door returning to the opening direction. It is something.

0010

【Example】

Next, an embodiment of this invention will be described based on the drawings.

[0011] The drawing shows the sliding door sealing device of this invention as a large prefabricated refrigerator. This shows the case where it is applied to.

0012 In this specification, front and back, left and right refer to FIG. 1, and front refers to the lower side of FIG. , "rear" refers to the upper side, and "left and right" refers to the rear.

[0013] 1 to 4 showing the first embodiment of this invention, a refrigerator (1) has an opening on the front wall. (2) A rail (20) extending from the upper edge to the right is attached, and a rail (20) is attached along this rail (20). The sliding door (3) can be slid left and right. Also, the sliding door (3) An annular gasket (16) is attached to the inner side of the peripheral edge.

[0014] At both left and right ends of the bottom of the sliding door (3), there are two rows of square and reverse shapes when viewed from the plane. The mounting members (4) (4) are installed horizontally with bolts (28) and nuts (not shown). I'm being kicked. These roller mounting members (4) (4) have a pair of front and rear parts where the bolts are inserted. Fixing parts (5) (5) with elongated holes (9) (9) and arches extending to the left or right from their tips. The arm part (6) (6) has a roller (7) (7) at the tip of the arm part (6) (6) to prevent the lower end of the door from coming off. are respectively mounted rotatably around vertical axes (8) (8).

[0015] On the other hand, corresponding to these rollers (7) (7), there are Door swing prevention members (10) (10) are attached. Door swing prevention members (10) (10) are There is a mounting bolt (28) and a nut (not shown) fixed to the lower end of the mouth rim (1a). Attach the attached wall (11) and the separation prevention roller (7) opposite to this on the door (3) side to the periphery of the storage opening (1). The roller guide inclined wall (12) that guides the roller gradually closer to the a) side, the mounting wall (11) and and the right side wall (13) connected to the right end of the roller guide inclined part (12), and the right side wall (13) connected to the lower side of these. The left end of the mounting wall (11) and the roller guide slope (12) It is wide on the opening (14) side and narrows as it reaches the right side wall (13). In addition, in the mounting wall (11) of each door swing prevention member (10), there is a pair of vertically long long holes (27) (27). is opened, and the height of the door swing prevention member (10) is increased by screwing in the bolts (28) (28). has been slightly adjusted.

[0016] Here, the side of the roller guide slope (12) (12) made of leaf springs near the storage opening peripheral edge (1a) The lower edge of the base (12a) (12a) is welded to the bottom wall (15) (15) of the door swing prevention member (10) (10). Therefore, the free ends (12b) (12b) on the opposite side are fixed on the bottom wall (15) (1 5) further apart. And the storage opening is located near the tip of these free ends (12b) (12b). The roller detent protrusions (17) (17), which are roughly shaped when viewed from the plane protruding toward the peripheral edge (1a), are located there. Each is provided.

[0017] From the open position of the sliding door (3) above, slide the refrigerator (1) along the rail (20) on the front wall. When you reach the storage door (2), the roller (7) at the bottom of the door (3) 7) is from the opening (14) (14) of the door swing prevention member (10) (10) on the lower end side of the storage door periphery (1a). Enter and gradually approach the periphery of the storage opening (1a) along the roller guide inclined wall (12) (12) You will be guided as follows. For this reason, the sliding door (3) is firmly attached to the outer surface of the periphery of the storage entrance (1a). The gasket (16) inside the sliding door (3) Due to the reaction force based on the generated force, the sliding door (3) is pushed closer to the periphery of the refrigerator (1) entrance (1a). Never be separated.

[0018] It also prevents the sliding door (3) from separating when the storage entrance (2) is closed by the sliding door (3). The rollers (7) (7) first hit the roller detent protrusions (17) (17), and the roller guide These convex portions (1 7) Push (17) forward, cross both convex parts (17), and reach the base (12a) (12a) side. Ru. Both convex portions (17) (17) quickly return to their original state due to the action of the leaf spring, so Once the sliding door (3) is closed, the movement of the rollers (7) (7) in the return direction The detent convex portions (17) (17) of the Therefore, unless the sliding door (3) is moved in the opening direction, it will not be affected by external factors such as internal pressure. If so, the sliding door (3) will not return to the opening direction.

[0019] In addition, the door swing prevention members (10) (10) are bolted to the lower end of the refrigerator (1)'s opening periphery (1a). ・Since it is fixed with a nut, it does not protrude much from the front wall, making it suitable for refrigeration. It does not get in the way when loading and unloading items into/from storage (1).

[0020] In addition, there is a section on the upper side of the rail (20) of the refrigerator (1) that is designed to keep the sliding door (3) open at all times. This is a so-called semi-automatic device that semi-automatically moves only in the direction in which the door (3) opens. Although it is equipped with a seat/slide mechanism, illustration of this is omitted.

[0021] FIG. 5 shows a second embodiment of this invention. Here, in the first embodiment above, The difference is that when viewed from the front, the roughly L-shaped roller mounting members (24) (24) are attached to the sliding door. (3) The height is adjustable on both the left and right sides of the lower end, and the refrigeration The bottom wall (15a) (15b) of the door swing prevention member (10) on the side of the door periphery (1a) of the storage (1) is double layered above and below. The upper bottom wall (15a) with the roller guide inclined portion (12) is connected to the mounting wall (1). The lower bottom wall (15b) connected to 1) can be moved forward and backward, and the upper bottom wall (15a) can be moved. By moving the roller guide slope (12) against the separation prevention roller (7), The main feature is that the front and rear positions can be adjusted.

[0022] The roller mounting members (24) (24) are a pair of vertically long front and rear parts into which the bolts (28) are inserted. Fixing parts (25) (25) with long holes (27) (27) and arches extending horizontally from their tips. It is equipped with a arm part (26) (26). In addition, on the upper bottom wall (15a) of the door swing prevention member (10), A pair of long left and right elongated holes (27) (27) are drilled before and after the bolt (28) is inserted.

[0023] In addition, in this second embodiment, the arm portions (26) (26) of the roller mounting members (24) (24) At the tip of the door, rollers (7) (7) to prevent the lower edge of the door from separating rotate around vertical axes (8) (8), respectively. The roller guide slope (12) (12) consists of a freely attached point and a leaf spring. The roller detent protrusions (17) (17) are provided near the tips of the free ends (12b) (12b), respectively. Other points, such as the provision of In the drawings, the same parts are given the same reference numerals.

[0024] In the above embodiment, the sliding door sealing device of this invention is a large assembly type. Although the case where it is applied to a type prefabricated refrigerator is shown, this invention can also be applied to other large prefabricated refrigerators. The same applies to sliding doors in prefabricated freezers, storage warehouses, and cold storage cabinets. This applies to

[0025]

[Effect of the idea]

The sealing device for the sliding door of a refrigerator, etc., according to this invention is as described above. On both the left and right sides of the bottom edge of the ride door, rollers to prevent the bottom edge of the door from coming off are attached to vertical axes. It is rotatably attached to the center, and correspondingly there are attached on both the left and right sides of the bottom edge of the storage opening. , guide the separation prevention roller on the door side so that it gradually approaches the periphery of the storage opening, and A door swing prevention member with a roller guide slope created by a spring is installed. Because of this, when closing the entrance of a refrigerator, etc., the roller at the bottom of the sliding door to prevent it from separating is guided by the roller guide slope of the door swing prevention member on the side of the door periphery, and The sliding door is pressed firmly against the outer surface of the periphery of the storage door as it gradually approaches the storage door side. The reaction is caused by the elastic force of the gasket inside the sliding door. Even with force, the sliding door will not be separated from the periphery of the refrigerator entrance. The effect is that there is no risk of cold air leaking inside the refrigerator due to being lifted upwards. play.

[0026] In addition, the door swing prevention member is fixed to the lower end of the periphery of the refrigerator entrance, so it It doesn't protrude much from the wall, so it doesn't get in the way when putting things in and out of the refrigerator. No.

[0027] In addition, the base of the roller guide slope made of a leaf spring near the periphery of the storage door is The anti-sway member is fixed to the bottom wall, while the free end on the other side is fixed to the bottom wall. They are separated from each other, and there is a rod protruding toward the periphery of the storage opening near the tip of these free ends. The roller is equipped with a protrusion to prevent it from returning, so when the storage door is closed by the sliding door, the roller The separation prevention roller on the sliding door side guided by the sloping guide section first moves to the free end. It hits the convex part for detenting the roller, and then it pushes against the spring force of the leaf spring at the free end. Once the protrusions for preventing the roller from returning are pushed forward, the roller passes over the protrusions and reaches the base side. When the roller passes over the protrusion, the protrusion immediately returns to its original position due to the action of the leaf spring. Therefore, once the sliding door is closed, the movement of the rollers in the return direction will be reversed. The sliding door is blocked by the stopping protrusion, so depending on external factors such as internal pressure, the sliding door may It has the effect of reliably keeping the inside of the refrigerator in an airtight state without returning to the opening direction. play.

[0028] In addition, the structure of the sliding door sealing device for refrigerators, etc. based on this invention is extremely difficult. It has the advantage of being easy to install and less likely to break down. Ru.

[Brief explanation of drawings]

FIG. 1 is an enlarged perspective view of a main part of a refrigerator opening according to a first embodiment of the present invention.

FIG. 2 is an enlarged, partially omitted horizontal sectional view of the main part of the storage opening.

FIG. 3 is an enlarged vertical cross-sectional view of the main part of the storage opening.

FIG. 4 is a front view showing the entire refrigerator.

FIG. 5 is an enlarged perspective view of a main part of a refrigerator opening according to a second embodiment of the present invention.

[Explanation of symbols]

1 Refrigerator 1a Peripheral area of store entrance 2 Storage entrance 3 Sliding door 7 Roller to prevent the lower edge of the door from separating 8 Vertical axis 10 Door swing prevention member 12 Roller guide slope created by leaf spring 12a base 12b Free end 15 Bottom wall 15a Upper bottom wall 15b Lower bottom wall 17 Convex part for roller detent

Claims (1)

[Scope of utility model registration request] [Claim 1] On both left and right sides of the lower end of the sliding door (3), which is pressed against the outer surface of the outer edge (1a) of the opening (1a) when the opening (2) of the refrigerator (1), etc. is closed, there is a door lower end. Separation prevention rollers (7) (7) are attached rotatably around vertical shafts (8) (8), respectively, and correspondingly, doors ( 3) It guides the side separation prevention rollers (7) (7) so as to gradually approach the storage opening periphery (1a) side, and is provided with roller guide inclined parts (12) (12) made of leaf springs. The door swing prevention member (10) (10) is attached, and the base (12a) (12a) of the roller guide slope (12) (12) made of a plate spring on the side closer to the door peripheral edge (1a) is attached to the door. Bottom wall (1) of rocking prevention member (10) (10)
5) (15), while the free ends (12b) (12b) on the opposite side are spaced apart from the bottom wall (15) (15), and these free ends (12b) ) (12b) near the tip of the storage opening periphery (1a)
A sealing device for a sliding door of a refrigerator, etc., which is provided with convex portions (17) (17) for preventing roller detents that protrude from the side.