JPH0758021B2 - Airframe door opening and closing structure - Google Patents

Description

TECHNICAL FIELD The present invention relates to a door opening / closing structure for an airframe that can be opened / closed from either the left or the right.

[Problems to be Solved by Prior Art and Invention]

Conventionally, in general, opening and closing of the door of the machine body, for example, opening and closing of the door of the refrigerator can be done only from one direction, and therefore, there is a problem that the place where the refrigerator is placed is determined by the opening and closing direction of the door.

The present invention solves such a problem.

[Means for Solving the Problems]

 The detailed description will be made with reference to the accompanying drawings.

Notches 7 and 8 are provided at two positions on the left and right of the upper bar 3 or the lower bar 4 on the front surface of the machine body A, and the upper bar 5 or the lower bar 6 of the door-side frame body 2 attached to the front surface of the machine-side frame body 1 is provided. The notch portions 15 and 16 are formed at corresponding positions, and the door-side frame body is provided in each communication hole formed by the notch portions 7 and 8 of the machine-side frame body 1 and the notch portions 15 and 16 of the door-side frame body 2. When opening the door-side frame body 2 by inserting the shaft pins 13 and 14 provided so as to be able to tilt forward into the notches 15 and 16, respectively, one of the shaft pins 13 falls to the front and the other shaft An interlocking device C with a slide plate 25 for preventing the pin 14 from being tilted forward is provided on the door-side frame 2, and a slide restricting device D for restricting the slide of the slide plate 25 is provided on the interlocking device C with the slide plate 25. Shaft pin 13
A door opening / closing structure for an airframe, characterized in that the other axis pin 14 is opened forward with respect to the fulcrum as a fulcrum, and is reversely moved to be closed.

[Action]

When the door-side frame body 2 is opened by opening the door-side frame body 2 with the slide plate 25, the shaft pins 13 and 14 are provided in the notches 15 and 16 of the door-side frame body 2 so that they can be tilted forward. The device C causes one shaft pin 13 to fall forward and prevents the other shaft pin 14 from falling forward, so that the door-side frame body 2 uses one shaft pin 14 as a fulcrum and the other shaft pin 13 is notched. It will be opened from the part 7.

When the door-side frame 2 is closed, one shaft pin 13 gradually penetrates into the notch 7, the shaft pin 13 gradually rises and returns to the original state, and the other shaft pin 14 Is a fulcrum when the forward tilt is prevented and the door-side frame 2 is closed.

When the door side frame 2 is opened and closed as described above, the slide restricting device D properly restricts the slide of the slide plate 25, so that the forward tilting of the one axial pin 13 and the other axial pin 14 can be reliably and properly prevented. Will be done.

〔Example〕

INDUSTRIAL APPLICABILITY The present invention can be applied to all so-called single-opening doors such as cooking utensils, cooking-tool storage shelves, and refrigerators, and the single-opening door can be changed to a door that can be opened from either direction.

The drawings show a case where the present invention is applied to a refrigerator door, and the details will be described below.

A door frame 2 provided on the rear surface of the opening / closing door B is provided in a fitted state on a machine frame 1 provided on the front surface of the aircraft A.

The upper bar 3 and the lower bar 4 of the machine-side frame 1 and the upper bar 5 and the lower bar 6 of the door-side frame 2 are fixed and fixed by the following structure.

The upper frame 3 of the machine-side frame 1 and the upper frame 5 of the door-side frame 2 are fixed to each other, and the lower frame 4 of the machine-side frame 1 and the lower frame 6 of the door-side frame 2 are fixed to each other. Since the wearing structure is the same structure, only the fastening structure between the lower rail 4 of the machine-side frame 1 and the lower rail 6 of the door-side frame 2 will be described below.
The fastening structure between the upper rail 3 of the machine-side frame 1 and the lower rail 6 of the door-side frame 2 is omitted.

Notches 9 and 10 are formed at two places near the left and right ends of the horizontal portion 4a of the lower bar 4 of the machine-side frame 1 using the angle pieces, and a flat U-shape is formed below the base of the notches 9 and 10. The ring bodies 11 and 12 are attached to the horizontal portion 4a in a state in which the tip folded-back portion is slightly inclined downward, and the ring body 11 and 12 and the cutout portions 9 and 10 are attached to the door-side frame body 2
Through holes 7.8 are formed through which the shaft pins 13 and 14 erected on the horizontal portion 6a of the lower crosspiece 6 are passed.

Cutouts 15 and 16 are formed in the horizontal portion 6a of the lower crosspiece 6 of the door-side frame 2 at positions overlapping the cutouts 9 and 10 provided in the horizontal portion 4a of the lower crosspiece 4 of the machine-side frame 1. Axial pins 13 and 14 are provided on side walls 15 'and 16' standing on both sides of the notches 15 and 16 so as to swing back and forth.

On the lower surface of the horizontal portion 6a of the lower crosspiece 6 of the door-side frame body 2, the control rods 19 and 20 that prevent the shaft pins 13 and 14 from falling too far to the front side, and the tilting from the standing state to the far side are prevented. Regulation rods 17 and 18 are attached.

Four guide rollers 21a, 21b, 22a, 22b, which are a pair of upper and lower sides, are provided horizontally on the left and right sides of the vertical portion 6b of the lower bar 6 of the door-side frame body 2, and a pair of upper and lower guide rollers 21a, 21b, 22a, 22b are projected. Guide roller 21a
A slide plate 25 having a thickness substantially equal to the gap width is inserted between the 21b and the guide rollers 22a and 22b so as to be slidable from side to side.

The slide plate 25 in the drawing shows a case where the slide plate 25 is connected in the middle by a connecting bolt rod 23 so that the length between the left and right ends of the slide plate 25 can be finely adjusted.

Curved cam edges by cutting the inner corners of both ends of the slide plate 25
26 ・ 27 is formed, and this curved cam edge 26 ・ 27 is always
・ The lower rod 6 of the door-side frame 4 is provided with the control rods 28 and 29 that are brought into contact with the 14
Is erected on the horizontal portion 6a.

The control rods 28 and 29 are provided on the front edge of the slide plate 25 and the door frame 2
The lower swinging bar 6 is erected at a position where a predetermined swinging space 24 is interposed between the lower crossing 6 and the inner surface of the vertical portion 6b.

The slide plate 25 is held by the shaft pins 13 and 14 and the control rods 28 and 29, and the slide plate 25 is prevented from rattling in the width direction.

Guide recesses 30 and 31 with which the control rods 28 and 29 are fitted when the slide plate 25 slides toward both sides of the slide plate 25
And the guide edge inlets of the guide recesses 30 and 31 are formed on the curved cam edges 39 and 40.

The slide plate 25 is provided near the guide recesses 30 and 31 of the slide plate 25.
Set up pins 32 and 33 to regulate the slide of.

In addition, shafts 34 and 35 are erected on both sides of the horizontal portion 6a of the lower crosspiece 6 of the door-side frame 2 and toward the inside, and the pins 32 and 35 are attached to the shafts 34 and 35, respectively.
Engaging rods 36a, 36b, 37a that engage the 33 and the shaft pins 13 and 14, respectively.
・ Pivotally connect the connecting corners 36 and 37 in which 37b are connected in an L shape to the shafts 34 and 35.

The drawings show the case where the above configuration is adopted, and the operation thereof is as follows.

First, the handle portion 38 on the left side in FIG. 1 (the handle portion 38 in FIG. 3)
When the door-side frame body 2 is opened by pulling the door toward you, that is, the state of FIG. 4 will be described.

Since the shaft pins 13 and 14 are inserted into the through holes 7 and 8 formed by the cutouts 9 and 10 and the ring bodies 11 and 12, the door-side frame body 2 is formed as shown in FIGS. Although the state in which it is fixed to the machine-side frame 1 is secured, when the left grip 38 is pulled toward you in this state, the lower part of the shaft pin 13 becomes the lower surface of the lower rail 4 of the machine-side frame 1. Since it is in contact with the regulation rod 17 provided, the shaft pin 13 is
5 Swing to the front side as shown in Fig.
The upper part of the presses the curved cam edge 26 of the slide plate 25 toward you.

By this pressing, the slide plate 25 slides to the left side in FIG. 2, and the state shown in FIG. 4 is reached, so that the curved cam edge 27 at the right end of the slide plate 25 abuts the shaft pin 14 on the right side and the swing gap 24 minutes. Just slides to the right and slides to the right, and the right axle pin
14 is prevented from falling forward.

With the sliding of the slide plate 25, the left contact side 41 of the slide plate 25 is guided by the regulating rod 28, the right contact side 42 is guided by the regulating rod 29, and the regulating rod 29 moves.
It is fitted into the guide recess 31 via 40, and the right shaft pin 14
Is supported by the inner side of the slide plate 25 so as not to be tilted forward.

Since the control rod 29 is fitted into the guide recess 31, the slide plate
While the curved cam edge 27 of 25 makes contact with the shaft pin 14,
And the control rod 29 will be inserted without any trouble.

Further, as the slide plate 25 slides, the pin 32 of the slide plate 25 also slides to the right. Therefore, the sliding of the pin 32 causes the engagement rod 36a to rotate about the shaft 34 as a pivot point. The engaging rod 36b also pivots to the left with the shaft 34 as the pivot point, and exerts the action of pushing the shaft pin 13 forward, preventing the shaft pin 13 from returning to its original state by the engaging rod 36b. It

At this time, the shaft pin 13 can be reliably prevented from falling too much by the control rod 19.

Therefore, when the left grip 38 is pulled toward you, the left shaft pin 13 is released from the machine-side frame 1, and the right shaft pin 14 is separated from the machine-side frame 1 and the door-side frame 2. The door-side frame body 2 is opened from the left side as an opening / closing fulcrum.

Next, a case where the door-side frame body 2 shown in FIG. 4 is closed will be described.

When the door-side frame 2 is moved in the closing direction with the right-side shaft pin 14 as a fulcrum, the tilted shaft pin 13 comes into contact with the ring body 11 tilted slightly downward, and slides on the ring body 11. When it is inserted into the through hole 7 formed by the ring body 11 and the notch 9, and the door frame 2 is further moved in the closing direction, the shaft pin 13 comes into contact with the side wall 9 ′ of the notch 9, and the shaft pin 13 Gradually becomes an upright state.

In accordance with the movement of the shaft pin 13 in the upright state, the engaging rod 36
b is also pressed by the side surface of the shaft pin 13 and returns to its original position. Therefore, the engagement rod 36a also rotates about the shaft 34 as the pivot point, the engagement rod 36a presses the pin 32, and the slide plate 25 Is pushed to the left to slide the slide plate 25 back to the original state.

With the slide return of the slide plate 25, the slide plate 25
The curved cam edge 26 presses the shaft pin 13 to the upright state, the shaft pin 13 is completely returned to the original state, and the slide plate 25
Holds the upright state of the shaft pin 13.

Even at the right end portion of the slide plate 25 that is in contact with the right shaft pin 14, the slide plate 25 smoothly returns to the original state.

That is, since the curved cam edge 40 of the guide recess 31 of the slide plate 25 and the regulation rod 29 move while contacting each other, the slide plate 25 smoothly moves to the right side, and the right side contact side 42 of the slide plate 25 is regulated. The curved cam edge 27 of the slide plate 25 supports the shaft pin 14, and the shaft pin 14 is maintained in the upright state.

In the figure, reference numeral 43 is a leg portion, 44 is a nut, and 45 and 46 are shaft pins 13 and 14.
Is the axis of.

〔The invention's effect〕

The present invention provides the convenient door opening / closing structure of the airframe, which is configured as described above and allows the door-side frame body to be opened from either the left or right side.

[Brief description of drawings]

The drawings show an embodiment of the present invention. FIG. 1 is a front view in which a part of the present invention is cut away, and FIG. 2 is a plan sectional view of an essential part,
FIG. 3 is an enlarged side sectional view of an essential part, FIG. 4 is a plan sectional view when the door-side frame is opened, and FIG. 5 is an enlarged side sectional view of the essential part. A ... Machine body, C ... Interlocking device with slide plate, D ... Slide regulating device, 1 ... Machine side frame body, 2 ... Door side frame body, 3 ... Upper rail, 4 ...
Lower rail, 5 ... Upper rail, 6 ... Lower rail, 7.8 ... Notch, 13/14 ...
Shaft pin, 15 ・ 16 ... Notch, 25 ... Slide plate.

Claims (1)

[Claims] 1. A notch is provided at two places on the left and right of an upper bar or a lower bar on the front of the machine body, and cutouts are provided at corresponding positions of the upper bar and the lower bar of a door-side frame attached to the front of the machine side frame. And a shaft pin provided in each of the communication holes formed by the cutout portion of the machine-side frame body and the cutout portion of the door-side frame body so as to be tilted forward in each cutout portion of the door-side frame body. When the door side frame is opened, the interlocking device with a slide plate is provided on the door side frame to prevent one shaft pin from falling forward and the other shaft pin from being tilted forward. A door opening / closing structure for a machine body, wherein a slide restricting device for restricting slide of a slide plate is provided, and one axis pin is used as a fulcrum so that the other axis pin is opened forward and opened, and is reversely moved to be closed.