JPH01137087A - Stopper fixture of switching door for storage shed - Google Patents

Abstract

PURPOSE: To prevent the fatigue failure of a stopper and to prolong the life of the stopper by fitting the stopper to a fitting frame movably in the longitudinal direction in response to the displacement of a stopper pin when a door is opened or closed. CONSTITUTION: A stopper 7 is fixed to a bumper 8 fixed to a slide rail 6 while stopper pieces 7A, 7B are faced to a stopper pin 10 side and stepped screws with a specific size are inserted into the fitting holes 13 of a fitting face 7C for fixing. Since gaps are formed between the lower face of the rail 6 and the upper face of the stopper 7 and between the wall faces of the fitting holes 13 and the step portion wall faces of the screws 11, the stopper 7 is moved longitudinally in response to the movement of the pin 10 drifted with its trajectory as a stopper arm 4 is rotated when a door 3 is opened or closed, thereby uniforms the pressing force applied to the pin 10 when the pin 10 passes through hold sections 7D, 7E.

Description

DETAILED DESCRIPTION OF THE INVENTION (A) Field of Industrial Application The present invention relates to a stopper attachment device for an opening/closing door provided at the front opening of a reach-in type storage.

(b) Conventional technology In a reach-in type storage, such as a cooling showcase, one end of a stopper arm is rotatably attached to an opening/closing door provided at the front opening of the case; , is rotatably attached to a stopper pin that is slidable with a slide block within a slide rail fixed to the opening/closing door mounting frame.

That is, as shown in FIGS. 9 and 10, the stopper 20 is inserted from below with a stopper 25 such as a screw into a bumper 24 that is housed and fixed in an elongated slide rail 23 provided on the upper horizontal frame 22 of the mounting frame 21. Fixed, one way Figure 10 and 1st
As shown in Figure 1, the slide block 26 is housed within the slide rail 23 with a rearance L necessary for sliding, and the other end of the arm 27 is rotatably supported on the slide block 26. Stopper pin 2
8 is installed. Therefore, when the door is opened, the slide block 26 is guided by the rotation of the stopper arm 27 that is pulled out toward the outside of the refrigerator, and the slide block 26 is moved toward the slide rail 23.
The stopper pin 28 moves toward the stopper 20 in the direction of the stopper 20, and when the door is opened to the maximum, the stopper pin 28 moves toward the stopper pieces 20A, 2.
It is pinched by 0B. In this state, the door is held open.

Conversely, when the door is closed, the slide block 21 moves within the slide rail 23 in a direction away from the stopper 20, guided by the rotation of the stopper arm 27 that is pushed inward into the refrigerator. The stopper 20 is the twelfth stopper.
As shown in the perspective view of the figure, the front and back portions of the corner bases A, which are the boundaries between the stopper pieces 20A and 20B and the mounting surface 20C, are formed with the same width, and the stopper pieces 20A and 20B
Hold parts 20D and 20E are formed at the tips of the holding parts 20D and 20E, which are pushed apart as the stopper pin 28 passes.

(C) Problems to be Solved by the Invention In the above-mentioned conventional technology, the slide block 26 slides in the left and right direction inside the slide rail 23 as the door is opened and closed, and during this slide, both stopper pieces 20A, 20
B's tip hold part 20D.

When the stopper pin 28 passes through the stopper pin 28, the holding parts 20D and 20E are pushed apart, and the stopper piece 20A is temporarily suppressed and deformed in the direction outside the refrigerator and the stopper piece 20B in the direction inside the refrigerator. This suppression deformation is the door opening/closing operation 1.
This will be done twice per session.

When opening the door, the stopper arm 27 pulls the stopper pin 28 toward the outside of the refrigerator as shown in FIG. 14, the degree of deformation of the stopper piece 20A is greater than the degree of deformation of the stopper piece 20B, and conversely, when closing the door, the stopper pin 28 is moved by the stopper arm 27 as shown in the opening of FIG. As a result of the force pushing the stopper pin 28 toward the inside of the refrigerator, the stopper pin 28 becomes oblique due to the clearance L, and its trajectory is shifted, so that the degree of deformation of the stopper piece 20B becomes greater than the degree of deformation of the stopper piece 2OA, as shown in FIG. , As a result, each time the door is opened or closed, the mounting surface 2
Local stress concentration occurs at a portion A where 0C and the stopper pieces 20A and 20B meet.

Therefore, when this local stress concentration is repeated thousands or tens of thousands of times, cracks occur in the A portion due to metal fatigue, resulting in a problem that the stopper 20 becomes unusable.

SUMMARY OF THE INVENTION The present invention has been proposed to solve the above-mentioned problems, and an object of the present invention is to provide a stopper device for a storage door that prevents fatigue failure of the stopper.

(d) Means for solving the problem In order to achieve this object, the stopper mounting device for a storage door according to the present invention is designed to move the stopper in the front and back direction in accordance with the displacement of the bin when the door is opened and closed. It is characterized by being attached to a mounting frame.

(e) Function When the door is opened or closed, the stopper moves in the storage according to the movement of the stopper pin whose trajectory is deviated by the force pulled toward the outside of the storage or the force pushed toward the inside of the storage as the stopper arm rotates. It is characterized by being able to be moved outward or inward.

(f) Example Hereinafter, embodiments of the present invention will be described in detail based on the drawings.

1 to 3 show the main parts of a cooling showcase as a storage according to an embodiment of the present invention.

As shown in Figures 6 and 7, the mounting frame 1 on the front of the case has
The opening/closing door 3 is attached to the torsion type hinge 2 on the right side of the figure, and the upper part of the inner surface near the hinge 2 of the door 3 is attached to the one side 3.
One end of a stopper arm 4 is attached to a in a rotatable and removable manner using a screw 5.

Further, a slide rail 6 is attached to the upper horizontal frame 1a of the mounting frame 1 in the longitudinal direction thereof, in which a long hole 6a for sliding and a notch 6b for inserting a slide block, which will be described later, are formed in the long direction.

At both left and right ends of the slide rail 6, a bumper 8 is provided with screw holes 8a, 8a for mounting the stopper 7.
8 are fixed respectively. In addition, slide rail 6
A slide block 9 is provided therein so as to be slidable through the notch 6b, so that the stopper pin 10 inserted through the hole at the other end of the stopper arm 4 is partially exposed below the elongated hole 6a. It is fixed to the slide block 9. At this time, the other end of the stopper arm 4 is rotatably attached to the stopper pin 10.

In addition, the left and right levers 8 fixed to the slide rail 6,
8, a stopper 7.7 shown in FIG. 4 is fixed with stoppers 11 such as screws through the mounting hole 13 of the mounting surface C with the stopper pieces 7A and 7B facing the stopper pin 10 side. . The stopper 7 includes stopper pieces 7A and 7B.
It has hold parts 7D and 7E at the tips of the holder.

As the stopper 11, a stepped screw as shown in FIG. 2A is used. Fastener 1 made of this stepped screw
1, specifically, the diameter A of the stepped portion 11A is 6.3 m.
The height B of the stopper 7 is 4.2 mm, the diameter C of the threaded portion 11B is 5 mm, and the thickness of the stopper 7 is 1 mm.
．． 6 ml, diameter E of mounting hole 13.13 is 6.8 tt
rx, the distance F between the mounting holes 13.13 is 3.2 mm, both the mounting holes 13.1 from the center of the line connecting both hold parts 7D and 7E.
The distances H and I to the center of 3 are respectively 47.5 mm557.5
mm, and the plate thickness G of the slide and rail 6 is 2.5 mm. When the fasteners 11 having such dimensions are screwed into the screw holes 8a, 8a of the bumper 8 through the mounting holes 1.3.13 and the long holes 6a as shown in FIG.
0 between the lower surface of /6 and the upper surface of the mounting surface of stopper 7.
．． A gap of 0.5 mm is formed between the wall surface of the mounting hole 13.13 and the wall surface of the stepped portion 11A. When using 11 as the pivot, the tip hold portions 7C, 7 of the Yastopper 7
The movement width of C in the front-back direction, that is, the swing width can be set to 2.8 degrees. Therefore, when the door 3 is opened or closed, the stopper 7 is moved out of the refrigerator in accordance with the movement of the stopper pin 10 whose trajectory is deviated by the force pulled toward the outside of the refrigerator or the force pushed toward the interior of the refrigerator as the stopper arm 4 rotates. Or it can be moved in the direction of the refrigerator, and as a result, the stopper pin 10
When passing through the holding parts 7D, 7E, the stress, that is, the pressing force applied to both the holding parts 7D, 7E becomes equal.

With this configuration, when the door 3 is opened, the stopper arm 4 moves toward the outside of the refrigerator, and along with this movement, the slide block 9
moves toward the stopper 7 on the hinge 2 side (to the right in the figure). When the door 3 is opened to its maximum extent, the stopper pin 10 is held between the stopper pieces 7A and 7B as shown by the dotted chain line in the figure, and a hold portion 7D is formed at the tip thereof.

It is gripped by 7E so that it does not come out. Further, at this time, the slide block 9 comes into contact with the no-kun-no-8 and stops.

If you want to reverse the opening and closing direction of the door 3, remove one end of the stopper arm 4 from the side 3a of the door 3, then reverse M3 and attach it to the left hinge in Figure 7. The attachment can be easily reversed by attaching one end of the stopper arm 4 to the piece 3b as shown by the two-dot chain line.

In addition, as a means to further reduce the stress on the stopper pieces 7A and 7B when the door 3 is opened and closed, the stopper 7 has an eighth
As shown in the perspective view of the figure, each of the stopper pieces 7 is formed with a notch 12 having a curved outline at the upper base portion (corner A portion) of 7B.

(G) Effects of the Invention According to the present invention described above, when the door is opened and closed, the movement of the stopper pin that deviates from its trajectory due to the force pulled toward the outside of the refrigerator or the force pushed toward the inside of the refrigerator as the stopper arm rotates. Therefore, when the stopper pin passes through the holding part, the stress or pressing force applied to both holding parts becomes equal, and as a result, the door opens and closes easily. The local stress concentration that conventionally occurs at the bending base of the stopper piece is now dispersed, suppressing the occurrence of fatigue fracture and extending the life of the stopper.

[Brief explanation of the drawing]

Figures 1 to 8 show an embodiment of the stopper mounting device of the present invention, Figure 1 is a vertical sectional side view of the main part, Figure 2 (A) and (B)
Figure 3 is a bottom view of the stopper, Figure 4 is an explanatory diagram of the trajectory of the stopper pin when the door is opened, Figure 5 is an explanatory diagram of the trajectory of the stopper pin when the door is closed, and Figure 6 is a plan view and front view of the stopper. The figure is a perspective view of the main part looking up from below, Fig. 7 is a plan view of the main part, Fig. 8 is an exploded perspective view of the main part, and Figs.
5 shows the prior art, FIG. 9 is a longitudinal sectional side view of the main part corresponding to FIG. 1, FIG. 10 is a longitudinal sectional front view of the main part, FIG. The figure is an exploded perspective view corresponding to Fig. 8, Fig. 13 is a vertical cross-sectional side view showing the swinging movement of the stopper pin, and Figs. 14 and 15 are the orbits of the stopper pin corresponding to Figs. 4 and 5, respectively. It is an explanatory diagram. 1...Mounting frame, 3...Opening/closing door, 4...Stopper arm, 6...Slide rail, 7°°
°Stopper, 7A, 7B...stopper piece,
7D, 7E...Hold part, 8...Bumper,
9...Slide block, 10...Stopper pin, 11...Stopper.

Claims (1)

[Claims] 1. On the opening/closing door mounting frame of the front opening of the storage, there is a mounting surface attached to the upper horizontal frame of this mounting frame with a stopper, and a mounting surface that bends downward from both the front and rear sides of this mounting surface and extends from one side laterally. two protruding stopper pieces facing each other, and a pin formed at the tip of the stopper piece and sliding in response to the opening/closing operation of the door, the end of which is pivoted to the end of the opening/closing door mounting frame. In the stopper mounting device for a storage door, which is equipped with a stopper comprising a hold part for gripping the door, when the pin comes into contact with the tip hold part when the door is opened, the hold part moves toward the outside of the refrigerator, and the door 1. A stopper attachment device for a storage door, characterized in that a stopper is attached so that when the pin comes into contact with the tip hold part during closing, the hold part moves toward the interior of the refrigerator.