JPH11247549A - Shutter and panel connecting member thereof - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve a function by connecting a plurality of shutters by connecting members consisting of an elastic body while hermetically sealing openings among mutual panels by the connecting members. SOLUTION: A plurality of panels 12, in which sections among interior wall plates 16 and exterior wall plates 18 are filled with a heat-insulating material 20, are connected by connecting members 14 composed of an elastic material and the shutter 10 is constituted and installed to the rear face, etc., of a refrigerator for a refrigerated car in a freely vertically movable manner and freely opened and closed. The members 14 are made up of packings 24 with hollow sections 22 and joints 26. The packings 24 are retained to the engaging projecting sections 28 of the panels 12 so as to be fast stuck to sections among the panels 12 and hermetically seal openings among the panels 12, and the hollow sections 22 are compressed and deformed and can be bent when the panels 12 are bent. The joints 26 are engaged through engaging recessed sections 32 at external angles at a time when the panels 12 are bent, and join the mutual panels 12 while hermetically sealing openings among the mutual panels 12. Accordingly, noises at the time of opening and closing can be prevented, and a cold-insulating effect can be improved.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a shutter used for opening and closing a refrigerator or the like of a refrigerator, and a panel connecting member for the shutter.

[0002]

Conventionally, a shutter has been used to open and close a refrigerator of a refrigerator car or a freezer of a freezer car. As an example, FIG. 9 and FIG.
A shutter 1 is shown at 0. The shutter 1 is used for opening and closing the opening of the refrigerator 3 of the refrigerated vehicle 2. As shown in FIG. 9, a plurality of panels 4 are connected by hinges (panel connecting members) 5. It is configured. The panel 4 has a built-in heat insulating material 9.
According to such a shutter 1, by releasing the lock 6, it is pulled up by the urging force of the spring 7 and slides along the rail 8, so that the refrigerator 3 can be opened. On the other hand, the refrigerator 3 can be closed by pulling down the shutter 1 against the urging force of the spring 7 and fastening the lock 6.

However, according to such a shutter 1, since the panel 4 is connected by the hinge 5, the noise at the time of opening and closing or the noise due to the vibration of the refrigerated car 2 during running is large. Also, when sliding on the curved portion of the rail 8,
If panel 4 bends at hinge 5,
Since the gap between the panels 4 is greatly widened, there is a possibility that a finger may be pinched during the opening and closing work. In addition, since the gap between the panels 4 is greatly opened, the sealing performance is impaired. For this reason, the refrigeration effect may be impaired.
Further, since the panels 4 are connected to each other by the hinges 5, the manufacturing is difficult, and the manufacturing cost is increased.

The inventor of the present invention has intensively studied to solve such a problem, and has reached the present invention.

[0005]

The gist of the shutter according to the present invention is as follows. In a shutter constituted by connecting a plurality of panels via a panel connecting member,
The panel connecting member is formed of an elastic body.

In such a shutter of the present invention, since the panel connecting member is made of an elastic material such as rubber, vibration of the shutter is absorbed by the panel connecting member during opening and closing. Since the vibration of the shutter is absorbed by the panel connecting member, the noise generated by the vibration is reduced.

The gist of the shutter according to the present invention lies in that in the shutter, a gap between the panels is sealed by the panel connecting member.

In such a shutter of the present invention, the gap between the panels is sealed by a panel connecting member made of an elastic body. Here, the panel connecting member made of an elastic body such as rubber is considered to have a higher heat retaining effect than the conventional hinge, and the panel connecting member itself plays a role as a heat retaining material.

The gist of the shutter according to the present invention is that, in the shutter, the panel connecting member has a hollow portion, and the panels are connected to each other while elastically deforming the shape of the hollow portion. It is to bend at the connecting member.

In the shutter of the present invention, since the panels are bent at the panel connecting member while elastically deforming the shape of the hollow portion of the panel connecting member, the panel connecting member and the panel can be folded even when the panels are bent. Adhesion is maintained. Further, a heat insulating layer is formed by the hollow portion of the panel connecting member, and the heat retention is enhanced.

Further, the gist of the shutter according to the present invention is that, in the shutter, a panel connecting member between the panels includes a packing having a hollow portion and a joint for connecting the panels so as not to be separated from each other. And a joint is provided on the outer corner side when the panels are bent.

Such a shutter of the present invention is provided with a joint on the outer corner side when the panels are bent, so that when the panels are bent, the joint is slightly curved, and the panels are not separated from each other. The distance between the panels is maintained on the outer corner side. Since the distance between the panels is maintained on the outer corner side, the packing having the hollow portion is compressed and deformed. Since the packing is compressed and deformed, the tightness between the packing and the panel is maintained, and the panels are folded together with the gap between the panels sealed.

Next, the gist of the panel connecting member according to the present invention is that the panel connecting member is a panel connecting member for connecting a plurality of panels to constitute a shutter, and is constituted by an elastic body.

Since the panel connecting member of the present invention is made of an elastic material such as rubber, it absorbs the vibration of the shutter when opening and closing.

The gist of the panel connecting member according to the present invention is to seal the gap between the panels in the panel connecting member.

Such a panel connecting member of the present invention is made of an elastic body which is considered to have a heat retaining effect, and seals a gap between the panels. In addition to being made of an elastic body, it also plays a role as a heat insulating material to seal the gap between the panels.

The gist of the panel connecting member according to the present invention is that the panel connecting member has a hollow portion, and the panels are bent while elastically deforming the shape of the hollow portion. is there.

In such a panel connecting member of the present invention, when the panels are bent at the panel connecting member, the shape of the hollow portion of the panel connecting member is elastically deformed. Therefore, even when the panels are bent, the adhesion between the panel connecting member and the panel is maintained. Further, a heat insulating layer is formed by the hollow portion of the panel connecting member to enhance heat retention.

[0019]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, an embodiment of a shutter and a panel connecting member for the shutter according to the present invention will be described with reference to the drawings.

In FIGS. 1 and 2, reference numeral 10 denotes a shutter according to the present invention. The shutter 10 is a shutter used for opening and closing the refrigerator 13 of the refrigerator vehicle 11.
The panel connecting member 14 is made of an elastic body. The shutter 10 is provided with a plurality of rollers (not shown) on both sides thereof. The rollers 1 are moved up and down while rolling along the rails 34, so that the refrigerator 1
3 can be opened and closed.

Here, as shown in FIG. 3, the panel 12 is engaged with the inner wall plate 16 and the outer wall plate 18, and
The heat insulating material 20 is built in. The uppermost panel 12 of the plurality of connected panels 12 is provided with an upper end device 36 for pulling up by a spring 38, as shown in FIG.
Is provided with a lower end device 40 for fixing to the opening 15 of the refrigerator 13 by the lock 17. Inner wall plate 16
The material of the outer wall plate 18 is preferably made of aluminum which is durable and lightweight, but is not particularly limited. For example, nickel, chrome, stainless steel,
Alternatively, these alloys may be used. In addition, a material other than metal such as resin or ceramic may be used.

The material of the heat insulating material 20 is preferably a foamed resin such as urethane having a high heat insulating property and light weight, but is not particularly limited as long as heat absorption from the outside into the refrigerator can be prevented. For example, polyethylene, polyvinyl chloride, polypropylene, ethylene-vinyl acetate copolymer resin, polystyrene, ABS resin, polyvinyl formal, acetate cellulose, acrylic resin, epoxy resin, phenol resin, urea resin or silicone resin are continuously foamed or independent. It may be foamed.

Next, as shown in FIGS. 1 and 2, the panel connecting member 14 includes a packing 24 having a hollow portion 22 and a joint 26 for connecting the plurality of panels 12 so as not to be separated from each other. A joint 26 is provided on the outer corner side when the plurality of panels 12 are bent.

The packing 24 is provided with a hollow portion 22 so that a plurality of panels 12 can be bent at the panel connecting member 14 while compressing and deforming the shape of the hollow portion 22. Further, the packing 24 is engaged with the engaging projections 28 of the panels 12 so as to be in close contact with each other between the panels 12, and seals the gap between the plurality of panels 12. Further, a notch 30 is provided so that the shape of the hollow portion 22 can be easily compressed and deformed.
The material of the packing 24 is desirably rubber such as chloroprene rubber, butadiene rubber, isoprene rubber, or isobutylene, but is not particularly limited as long as it is an elastic body. For example, a resin having elasticity may be used.

On the other hand, the joint 26 is engaged with the engaging recess 32 of the panel 12 to connect the panels 12 so as not to be separated from each other and to seal the gap between the plurality of panels 12. . In addition, the material of the johnite 26 is not particularly limited, such as rubber or resin, as long as it has strength enough to connect the panels 12 so as not to be separated from each other and has elasticity capable of curving to some extent.

When the refrigerator 13 of the refrigerator car 11 is closed, the shutter 10 has a plurality of panels 12 arranged straight as shown in FIG. Next, when the refrigerator 13 is opened, the lock 17 is released, and the urging force of the spring 38
As shown in FIG. 5, the shutter 10 is pulled up along the rail 34.

Here, when the shutter 10 is pulled up, the panel 12 is bent at the panel connecting member 14 at the curved portion in the rail 34 as shown in FIG. When the panels 12 are folded together at the panel connecting member 14, the joint 2
6 is slightly curved, and the distance between the panels 12 is maintained on the outer corners without separating the panels 12 from each other. Since the distance between the panels 12 is maintained on the outer corner side, the packing 24 having the hollow portion 22 is compressed and deformed. Since the packing 24 is compressed and deformed, the adhesion between the packing 24 and the panel 12 is maintained, and the panels 12 are bent together with the gaps between the panels 12 sealed.

According to such a shutter 10 of the present invention, since the panel connecting member 14 is made of an elastic body, noise during opening / closing work and running of the refrigerated vehicle 11 can be further reduced.

According to the shutter 10 of the present invention,
Since the panel connecting member 14 is made of an elastic body,
Manufacture is easy and manufacturing cost can be reduced. Further, since the panel connecting member 14 is formed of an elastic body, the sealing function can be performed by the panel connecting member 14 itself, unlike a conventional shutter using a hinge as the panel connecting member. Therefore, it is possible to improve the hermeticity of the refrigerator 13 and enhance the coolness, and to make the whole configuration compact.

According to the shutter 10 of the present invention,
The gap between the panels 12 can be always sealed by the packing 24 and the joint 26. Therefore, unlike the conventional shutter in which the gap between the panels becomes large when the panels bend at the hinge, the effect of keeping cool can be enhanced. Further, when the panels 12 are bent, the gap between the panels 12 does not open so much that a finger can be prevented from being pinched.

Although the embodiment of the present invention has been described above, the shutter and the panel connecting member according to the present invention can be implemented in other modes.

For example, the packing of the panel connecting member may be a packing 42 as shown in FIG. In such a packing 42, a plurality of grooves 44 are provided on the outer peripheral surface at substantially constant intervals. By providing such a groove 44, the packing 42 can be compressed and deformed when the panels 12 are bent. Further, by providing a plurality of grooves 44 at substantially constant intervals, the grooves 44 can be deformed uniformly over a wide range. For this reason, it is possible to prevent a part from being fatigued and damaged by repeated deformation.

Next, the shutter of the present invention may be a shutter 46 shown in FIG. This shutter 46
The panel connecting member 48 is composed of two joints 50 made of rubber (elastic body). By connecting the two panels 52 with the two joints 50, a hollow portion 54 is formed as a result. Even with such a shutter 46, two joints 50
By forming the heat insulating layer by forming the hollow portion 54 by the above, the cooling effect can be enhanced.

Next, the shutter of the present invention is not limited to a shutter used in a refrigerator of a refrigerated vehicle, and may be a shutter 56 used in a garage as shown in FIG.
The shutter 56 includes a plurality of panels 58 connected via a panel connecting member 60, and the panel connecting member 60 is made of rubber (elastic body). Further, the shutter 56 is used for a garage, and does not include a heat insulating material in the panel 58. Such a shutter 56 can also reduce noise when the shutter 56 is opened and closed.

Although the embodiments of the present invention have been described with reference to the drawings, the embodiments of the present invention are not limited to those shown in the drawings.

For example, the shutter of the present invention is not limited to those used in refrigerators and garages of refrigerated cars, but may be used in freezers and warehouses of frozen cars. Further, the shape or structure of the panel connecting member is made of an elastic body,
There is no particular limitation as long as it has a function as a panel connecting member of the shutter. The size and structure of the panel are not particularly limited as long as the shutter can be configured.

In addition, the technical scope of the present invention includes various improvements, corrections, and modifications based on the knowledge of those skilled in the art without departing from the spirit of the present invention.

[0038]

According to the shutter of the present invention, since the panel connecting member is made of an elastic material such as rubber, vibration of the shutter can be absorbed by the panel connecting member at the time of opening and closing. . For this reason, at the time of opening and closing, the generated sound can be absorbed and noise can be prevented. Further, when used in a refrigerator of a refrigerated vehicle, noise due to vibration during traveling can be prevented.

According to the shutter of the present invention, wherein the gap between the panels is sealed by the panel connecting member, the gap between the panels is connected to the panel made of an elastic material which is considered to have a high heat retaining effect. It can be sealed by a member. For this reason, the heat retaining effect can be enhanced as compared with a conventional shutter in which panels are connected by hinges.

According to the shutter of the present invention, the panel connecting member has a hollow portion and the panels are bent at the panel connecting member while deforming the shape of the hollow portion. Since the panels are bent at the panel connecting member while elastically deforming the shape of the panel, even when the panels are bent, the adhesion between the panel connecting member and the panel can be maintained, and the finger between the panels can be maintained. Can be prevented from being pinched. Further, by forming the heat insulating layer by the hollow portion of the panel connecting member, the heat retaining property can be improved. Therefore, when used in a refrigerator or the like that requires heat retention, the performance of the refrigerator or the like can be improved.

The panel connecting member between the panels comprises a packing having a hollow portion and a joint for connecting the panels so as not to be separated from each other. The joint is provided on the outer corner side when the panels are bent. According to the shutter of the present invention, a joint is provided on an outer angle side when the panels are bent, so that when the panels are bent, the panels are not separated from each other, and the distance between the panels on the outer angle side is not separated. Can be maintained. Further, the packing having the hollow portion can be reliably compressed and deformed.

Next, according to the panel connecting member of the present invention,
Since it is made of an elastic body such as rubber, it can absorb sound generated from the shutter when opening and closing. For this reason, noise can be prevented. .

According to the panel connecting member of the present invention, which is characterized in that the gap between the panels is sealed, the panel connecting member is made of an elastic body which is considered to have a heat retaining effect, and seals the gap between the panels. Therefore, it can also serve as a heat insulating material for the shutter.

Further, according to the panel connecting member of the present invention, which has a hollow portion and bends the panels while elastically deforming the shape of the hollow portion, even when the panels are bent, the panel connecting member can be bent. Adhesion between the connecting member and the panel can be maintained. Further, a heat insulating layer can be formed by the hollow portion of the panel connecting member, and the heat retention can be enhanced.

[Brief description of the drawings]

FIG. 1 is a side sectional view showing one embodiment of a shutter and a panel connecting member according to the present invention.

FIG. 2 is a side sectional view showing a use state of the shutter and the panel connecting member shown in FIG.

FIG. 3 is a side sectional view showing a panel constituting the shutter shown in FIG. 1;

4A and 4B are views showing the shutter shown in FIG. 1, and FIG. 4A is a side sectional view showing the vicinity of the upper end, and FIG.
Is a side sectional view showing the vicinity of the lower end.

FIG. 5 is a perspective view showing a use state of the shutter and the panel connecting member shown in FIG. 1;

FIG. 6 is a side sectional view showing another embodiment of the packing constituting the panel connecting member of the shutter according to the present invention.

FIG. 7 is a side sectional view showing another embodiment of the shutter and the panel connecting member according to the present invention.

FIG. 8 is a side sectional view showing still another embodiment of the shutter and the panel connecting member according to the present invention.

FIG. 9 is a side sectional view showing a conventional shutter.

FIG. 10 is a perspective view showing a use state of the shutter shown in FIG. 9;

[Explanation of symbols]

 10, 46, 56; Shutter 11; Refrigerated car 12, 52, 58; Panel 13; Refrigerator 14, 48, 60; Panel connecting member 16; Inner wall plate 18; 42; packing 26; joint 34; rail

Claims (7)

[Claims] 1. A shutter configured by connecting a plurality of panels via a panel connecting member, wherein the panel connecting member is formed of an elastic body. 2. The shutter according to claim 1, wherein a gap between the panels is sealed by the panel connecting member. 3. The panel connecting member has a hollow portion, and the panels are bent at the panel connecting member while elastically deforming the shape of the hollow portion. Shutter described in. 4. A panel connecting member between the panels comprises a packing having a hollow portion and a joint for connecting the panels so as not to be separated from each other, and a joint is provided on an outer angle side when the panels are bent. The shutter according to claim 1, wherein the shutter is provided. 5. A panel connecting member for connecting a plurality of panels to form a shutter, wherein the panel connecting member is made of an elastic body. 6. The panel connecting member according to claim 5, wherein a gap between the panels is closed. 7. The panel connecting member according to claim 5, further comprising a hollow portion, wherein the panels are bent while elastically deforming the shape of the hollow portion.