JPS6110155Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention relates to a show case, in particular a type in which the top opening of the case can be opened and closed by a sliding door, and the sliding door is installed at an angle so that the closing force can be obtained when the sliding door is opened. Regarding the case.

As an example of this type of case, a perspective view and a sectional side view of a freezing/refrigerating case are shown in FIGS. 1 and 2, respectively.

In the figure, this frozen/refrigerated case 1
In this case, a refrigerant evaporator 3 is disposed in the inner upper part of the box-shaped heat insulating body 2, and the upper opening is opened and closed by a sliding door 4 made of a transparent body. The sliding door 4 is a front-back sliding type, and a guide rail 5 is arranged at an angle θ with respect to the horizontal line so that the rear part is higher than the front part.
Thereby, when the sliding door 4 is opened, a closing force based on the weight of the sliding door 4 can be obtained.

However, with this structure, when the opened sliding door 4 is released, it closes automatically, so there is a risk of hands and fingers being accidentally caught between the sliding door holder 61 formed by the decorative frame 6, especially in the case of children. There is a great risk of injury. To reduce this risk, the angle θ can be made small, but for this purpose, the front height of the case H
Either _F must be increased or the height after the case H _B must be lowered. However, it is preferable that the front height H _F of the case is lower from the viewpoint of loading and unloading products, seeing through from the outside, etc. Conversely, the rear height H _B is preferably higher from the viewpoint of securing the effective internal volume, especially the installation space for the refrigerant evaporator 3. .

From the above points of view, the present invention is a show case equipped with a sliding door shock absorbing device that can achieve the same effect as reducing the inclination angle θ of the sliding door without increasing the front height or lowering the rear height of the show case. This is what we are trying to provide.

Examples of the present invention will be described below.

FIG. 3 shows a freezing/refrigerating case to which the present invention is applied, showing the sliding door and its rails from the side.

In FIG. 3, a rail 5 with a roughly shaped cross section is provided in the front and back direction of the case so as to guide wheels 7 provided on the lower surface of both sides of the sliding door 4, and a rail 5 is provided on the sliding door receiver 61 of the decorative frame 6. A shock absorber 8 is provided at a position corresponding to . 9 is Patsukin,
10 is a handle.

This shock absorbing device 8 is made of a bag 81 made of rubber, resin, etc. and having a thickness about the width of a rail, provided with an air hole 82, and a built-in coil spring 83, so that the bag 81 can be freely expanded and contracted in a bellows shape. In the shock absorbing device 8 provided on each rail, when the sliding door 4 is opened, the bag 81 is fully extended by the coil spring 83. When the user releases his/her hand from the sliding door 4, the sliding door 4 begins to descend based on its own weight. When the front end of the sliding door 4 collides with the shock absorbing device 8, the internal air pressure of the bag 81 temporarily absorbs the collision, and when the internal air escapes from the air hole 82 and the device 8 is shortened to the shortest length, the sliding door closes. 4 is in the closed state. This state is shown in FIG.

In this manner, when the opened sliding door 4 is closed, when the front end of the sliding door 4 collides with the front end of the shock absorber 8, the sliding door 4 is greatly decelerated. Here, the buffer device 8
does not completely stop the sliding door 4,
If a finger or the like remains placed on the sliding door holder 61, it will get caught between it and the sliding door 4, but since the sliding door 4 is greatly decelerated, the impact will not be strong enough to injure the finger. From this, the length of the shock absorber 8 in the extended state is determined so that when the front end of the sliding door 4 collides with the shock absorber 8, even if a finger or the like is placed in the sliding door holder 61, it will not come into contact with the front end of the sliding door 4. Set.

The elastic force of the coil spring 83 is the same as that of the sliding door 4.
Since it is only necessary to fully extend the bag 81 when the sliding door 4 is opened, the closing force is set to a value that is very small and can be ignored compared to the closing force due to the sliding door 4's own weight. Bag 81 is made of rubber.
It is sealed with a molded product made of resin or the like after the coil spring is installed, and the air hole 82 is adjusted to an appropriate position and size for the expansion and contraction action of the bag 81. Furthermore, the device 8 is attached to the sliding door holder 61 using the rivet 11. At this time, it is preferable from the viewpoint of attachment strength that the end of the coil spring 83 be formed into a ring shape corresponding to the diameter of the rivet 11. . However, the present invention is not limited to this, and it may be attached with adhesive or screws, or may be attached to the gasket 9 on the sliding door 4 side.

By the way, the shock absorber 8 has a certain length even when it is shortened to its shortest length, so there is a possibility that a gap may be formed between the front end of the sliding door 4 and the main surface of the sliding door receiver 61. By making the gap between the hollow parts slightly larger, only the part where the shock absorber 8 is in contact can be depressed, and the other parts can be made to come into close contact with the main surface of the sliding door receiver 61.
In addition, a flange 62 forming a sliding door receiver 61
A flange 91 is also integrally molded on the lower part of the gasket 9 so that it comes into close contact with the flange 62 when the sliding door 4 is closed, so that no cold air leaks.

Note that the bag 81 may be made of a material that itself has appropriate elasticity so that it can be freely expanded and contracted in a bellows shape without a coil spring.

As described above, according to the present invention, the sliding door can be decelerated at a predetermined position when closing, and the inclination angle θ of the sliding door can be reduced without increasing the front height or lowering the rear height of the show case. The same effect can be obtained. On the contrary, the inclination angle θ can be made higher than that of the conventional case, and if this is done by increasing the rear height of the case, the effective internal volume of the case can be increased. Of course, the present invention is not limited to those having freezing and refrigeration functions as illustrated.

[Brief explanation of the drawing]

1 and 2 are perspective views and side sectional views, respectively, of a conventional freezing and refrigerating case as a type of case whose top opening is opened and closed by a sliding door. When the main part of one embodiment is applied to the top opening of a show case as shown in FIG. 1, side sectional views are shown showing a state in which the sliding door is open and a state in which the sliding door is closed. In the figure, 1 is a freezing/refrigerating case, 4 is a sliding door, 5 is a rail, 6 is a decorative frame, 61 is a sliding door holder,
7 is a wheel, 8 is a shock absorber, 81 is a bag, 82 is an air hole, 83 is a coil spring, and 9 is a gasket.

Claims (1)

[Scope of utility model registration request] In a case where the top opening of the case is opened and closed by a sliding door that slides on a rail that is inclined in the front and rear direction of the case and the rear is higher than the front, air holes are installed in the bag made of resin etc. What is claimed is: 1. A show case characterized in that at least one shock absorbing device is provided on a sliding door holder of the case or at a front end of the sliding door that comes into contact with the sliding door holder.