JP2528250B2 - Case door structure - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a door structure used for a case such as furniture in which a pair of left and right rotating doors are opened and closed in a double-door manner.

[0002]

2. Description of the Related Art In a door structure that opens and closes like a double door, there is a gap between the left and right pivoting doors, and the interior of the case can be seen and dust and harmful insects can enter. In order to prevent this from happening, an assembling member that is long in the vertical direction may be provided along the inner surface of the free end side of one of the pivot doors.

Conventionally, in this kind of door structure, a structure has been developed in which the rotating door on the side provided with the assembling member can be opened and closed even when the other rotating door is closed. For example, as shown in FIGS. 8 and 9, a summing member 51 formed integrally with a hinge 52 is rotatably provided on one rotating door 53 with its pivot shaft 54 oriented in the vertical direction. Is that. The summing member 51 closes the summing portion gap S on the inner surface side of the rotating doors 53 and 55 (shown by a solid line) and the avoiding posture in which the summing member 51 is tilted backward so as not to contact the other rotating door 55 ( (Shown by the chain double-dashed line)
It is biased in the avoidance posture direction by the coil spring 56.
Further, in the process of closing the rotary door 53 provided with the summing member 51, the case is a receiving surface portion that abuts on the inner surface side of the summing member 51 to guide the summing member 51 to the above-mentioned closed posture. 57 is provided (see Japanese Utility Model Publication No. 62-27672, U.S. Pat. No. 3653155, etc.).

[0004]

The receiving surface portion 57 is
It is formed on the front surface of a bar or block that is fixed at a predetermined position on the lower surface of the top plate or the upper surface of the bottom plate of the case.
When closing the rotary door 53 provided with the summing member 51,
A collision sound and a scraping sound with the assembling member 51 were generated, which was offensive to the ears. In particular, when the rotating door 53 is suddenly opened and closed, the summing member 51 may bounce off the receiving surface portion 57 and push the other rotating door 55 in the closed state to the half-opened state. there were. Further, if there is an error in the receiving / inserting positional relationship of the receiving surface portion 57 with respect to the front opening of the case, the assembling member 51 can take a sufficiently closed posture even when the rotating door 53 is completely closed. However, a gap is created between the summing member 51 and the inner surface of the other rotary door 55, or, conversely, the inner surface of the other rotary door 55 in the closed state is strongly abutted to peel off the coating or open halfway. There were times when I was pushed away to the door. Therefore, the receiving surface part 5
The positioning of 7 is not only troublesome because it needs to be accurate, but it may cause a positional shift after a long time, so that a complicated positioning structure is required.

The present invention has been made in view of the above circumstances, and provides a case door structure which can be opened and closed quietly and smoothly, and which has a simple structure and is easy to assemble. The purpose is to provide.

[0006]

In order to achieve the above object, the present invention takes the following technical means. That is, according to the present invention, a pair of left and right rotating doors that can open and close the front opening of the case in a double-opening manner and a summing portion gap formed between the free ends of both rotating doors when the doors are closed can be closed. And a summing member, wherein the summing member is rotatably attached to an inner surface portion of the free end of one of the pivoting doors via a pivot shaft having an axis centered vertically and by a spring. In a case door structure that is biased in a backward tilted position, at least one of an upper portion and a lower portion of a front opening of the case is provided with an abutting device at a position corresponding to the above-mentioned assembly portion gap. A swinging piece that the contacting device contacts with the summing member in the process of closing the rotary door on the side provided with the summing member, and a mounting base that holds this swinging piece so that it can swing back and forth with respect to the case. The swinging piece toward the inner surface of the other swinging door in the closed state. The present invention is characterized in that it comprises a spring for biasing the summing member along the inner surface of both pivoting doors by pushing it in a close contact manner when the both pivoting doors are closed. When the swinging door is opened, the swinging piece of the contact device may be brought into contact with the inner surface of the other swinging door in the closed state.

The front closing plate may be provided in the front opening of the case via a hinge whose pivot axis is directed vertically. In the contact device, the mounting base portion and the swinging piece may be integrally formed via an elastic connecting portion that functions as a spring.

[0008]

According to the present invention, when the turning door on the side provided with the summing member (hereinafter referred to as "one-side turning door") is closed,
In the process, the summing member comes into contact with the rocking piece of the abutment device, the summing member is rotated in the direction in which the backward tilted posture is returned (forward), and the rocking piece is directed toward the inside of the case. Will be rocked. At this time, since the spring of the summing member and the spring of the rocking piece work together, the collision sound and the rubbing sound of the summing member and the rocking piece are absorbed to the extent that they do not disturb the ears, and Vibrations and the like caused by the collision between the two are also absorbed. When the other swinging door (hereinafter, referred to as “the other side swinging door”) is in the closed state, the swinging piece has a function even after the summing member comes along the inner surface of the front closing plate. Since the mating members are biased by pushing backward, the contact state between these summing members and the inner surfaces of the two rotary doors is maintained in the close contact state by the surface pair.

Since the rocking piece of the abutment device rocks back and forth, the rocking piece is moved to the other side pivoting door when the other side pivoting door is closed and the one side pivoting door is opened. It is possible to abut on the inner surface of the and keep it on standby so that no gap is created between the two. If the one-side pivoting door is closed in this state, the summing member will be inserted between the swinging piece and the other-side pivoting door while maintaining a state of being rubbed together.

By providing the front closing plate with a hinge, it is possible to open and close the front opening portion of the case in a double door shape by the front closing plate and the swing door. The number of parts is reduced by forming the abutment device as an integrally formed product of the mounting base portion, the elastic connection portion (corresponding to a spring) and the swing piece.

[0011]

Embodiments of the present invention will be described below with reference to the drawings. In FIG. 1, reference numeral 1 denotes a case such as a closet, which is provided with a pair of left and right rotating doors 2 and 3 so as to close the front opening. Each of the swing doors 2 and 3 can be opened and closed like a double door by a hinge 4 attached to the inner surface of the side plate portion 1c of the case 1 such that the swing axis is oriented in the vertical direction. Reference numeral 5 is a closing door holder for the revolving doors 2 and 3, which is constituted by a combination of a magnet and a suction plate, and 6 is a handle.

As shown in FIG. 2, when the rotary doors 2 and 3 are both closed, a summing portion gap S having a predetermined width is formed between them. A vertically long assembling member 10 that closes the assembling portion gap S along the inner surface of the free end is attached to one of the pivot doors 2 (on the left side in FIG. 1). This assembling member 10
Is held by the swing door 2 via two upper and lower hinge tools 11. As shown in FIG. 3, the hinge tool 11 has a mounting base portion 13 and a butterfly movement piece 14 assembled in a freely pivotable manner via a pivot shaft 12 having an axis centered vertically, and is fitted to the pivot shaft 12. The butterfly motion piece 14 is biased by the coil spring 15 so as to maintain a predetermined inclined posture around the pivot shaft 12.
Therefore, the hinge tool 11 keeps the summing member 10 in a rearwardly inclined posture with respect to the rotary door 2, and twists the coil spring 15 from the rearwardly inclined posture to the posture parallel to the rotary door 2. It can rotate while resisting the biasing force.

At the front opening of the case 1, there are the lower surface of the top plate portion 1a and the upper surface of the bottom plate portion 1b and the above-mentioned summing portion gap S.
The contact device 20 is provided at a position corresponding to. As shown in FIGS. 4 to 6, the abutment device 20 has a cross section including a mounting base 21 having two holding pieces 22 and a hinge piece 24 fitted so as to be in contact with the insides of both holding pieces 22. An L-shaped swing piece 25, a coil spring 26 arranged between the hinge pieces 24, and a hinge shaft 27 penetrating the holding piece 22, the hinge piece 24, and the coil spring 26 in a skewered shape. . The width of the swinging piece 25 in the width direction is such that the L-shaped projecting end 25b can face the inner surfaces of the respective free ends when both swinging doors 2 and 3 are closed. Is formed in. The mounting base 21 is provided with two screw insertion holes 23, and the upright surface 21a from which the holding piece 22 protrudes is brought into contact with the front surface of the top plate portion 1a or the bottom plate portion 1b of the case 1. It is screwed. One end 26 a of the coil spring 26 has an upright surface 21 of the mounting base 21.
The other end portion 26b is radially protruded at an appropriate angle so that the other end portion 26b abuts along the mutual flat surface 25a of the hinge piece 24 of the swing piece 25. The biasing force of the swinging piece 25 by the coil spring 26 is set to be equal to or slightly stronger than the force of the coil spring 15 (see FIG. 3) of the hinge tool 11 to bias the summing member 10 rearward.

In order to prevent the swinging piece 25 from projecting further forward from the front opening of the case 1 when both the swing doors 2 and 3 are in the open state, the mounting base portion is prevented. The holding piece 22 of 21 is formed with a step portion 22a for a stopper. When the swinging piece 25 is in contact with the step portion 22a, the L-shaped projecting end 25b is biased so as to maintain a state of being flush with the front surface of the mounting base portion 21.

In the door structure of the present invention thus constituted, the one side turning door 2 is in the open state and the other side turning door 3 is in the closed state as shown in FIG. 6 (a). As an example, the case where the one-side pivot door 2 is closed will be described. Initially, the L-shaped protruding end 25b of the swinging piece 25 has the other side turning door 3
It stands by in a state of abutting without creating a gap between the summing member 10 and the inner surface thereof, but after the abutting of the summing member 10, the turning of the summing member 10 and the swinging of the swinging piece 25. And so on while advancing against the coil springs 15 and 26 at substantially the same time. Therefore, even if the one-side turning door 2 is suddenly closed, the collision sound, the rubbing sound, the vibration at the time of the collision, and the like between the assembling member 10 and the swing piece 25 are absorbed. As described above, since the coil spring 26 of the swing piece 25 is set to be equal to or stronger than the coil spring 15 of the hinge tool 11, only the swing piece 25 needs to be moved at least before the assembling member 10 starts to rotate. Therefore, the summing member 10 is always provided at the L-shaped projecting end 25b of the swinging piece 25 and the free end side inner surface corner portion of the other side turning door 3. While rubbing both sides, it is stably inserted into the inner side of the other side turning door 3 (Fig. 6).
(B)). When the one-side turning door 2 is completely closed, the front surface of the summing member 10 comes into contact with the inner surfaces of both turning doors 2 and 3. In this state, since the coil spring 26 urges the swinging piece 25 to push it backward, the summing member 10 and the two rotary doors 2 and 3 are brought into close contact with each other by the surface pair, and the summing portion gap S Blockage is certain.

On the other hand, when both of the rotary doors 2 and 3 are in the closed state, when the one-side rotary door 2 is opened, the operation substantially reverse to the above is performed. In addition, in the one side turning door 2,
Since the coil spring 26 of the swing piece 25 and the coil spring 15 of the hinge tool 11 act at once to release the elastic force at the moment when the holding state by the door-closing holder 5 (see FIG. 1) is released, one side There is an advantage that the subsequent opening of the rotary door 2 is facilitated and facilitated.

In the present invention, in the contact device 20, as shown in FIG. 7, the mounting base portion 21 and the swing piece 25 are integrally formed of a resin material, and a part of the connecting portion between the both is cut and raised in a strip shape. In addition, by bending it in an arch shape, it can be used as an elastic connecting portion 28, and the elastic connecting portion 28 can have a function to replace the coil spring 26 (see FIG. 5).

[0018]

According to the present invention, which has the above-mentioned structure, when one side turning door (the side provided with the summing member) is closed, it abuts against the summing member and swings. Since the abutment device is designed so that the piece swings, the spring of the summing member and the spring of the swing piece act simultaneously at the time of collision or rubbing between the summing member and the swing piece. Therefore, the collision noise, the scraping noise, the vibration accompanying the collision, etc. are absorbed,
The opening and closing of the one-side turning door becomes quiet and smooth. Therefore, even if the one-side turning door is suddenly opened and closed, the summing member will never bounce against the swinging piece, and accordingly, the other-side turning door in the closed state will not occur. There is no problem such as pushing the door to the half-opened state. Further, since the rocking piece pushes and pushes the summing member backward even after the summing member is in a state of being along the inner surface of the other side turning door, the summing member can be pressed against the inner surfaces of both turning doors. The contact state of the members becomes a close contact due to the surface pair,
It is possible to reliably close the gap between the assembling parts. In addition, when the other side turning door is in the closed state and the one side turning door is opened, the swinging piece is brought into contact with the inner surface of the other side turning door so that no gap is formed between them. If you do
When the one-side turning door is closed, the summing member is stably inserted into the inside surface of the other-side turning door while rubbing both surfaces thereof with the swing piece and the other-side turning door.

By adopting such a structure in which the rocking piece rocks, the positioning of the abutment device can be roughly set to some extent, and there is an advantage that the assembling work can be facilitated. Since it is possible to freely select whether or not a hinge is provided on the front closing plate, the door structure according to the present invention can be applied to various types of cases having a double-door or single-door design.

When the abutment device is formed as an integral body of the mounting base portion, the elastic connecting portion (corresponding to a spring) and the swing piece,
The number of parts can be suppressed to a small number, and the assembly can be facilitated and the cost can be reduced.

[Brief description of drawings]

FIG. 1 is a front view of a case in which a door structure according to the present invention is implemented.

FIG. 2 is an enlarged sectional view taken along line AA of FIG.

FIG. 3 is an enlarged plan sectional view of a hinge tool.

FIG. 4 is an enlarged cross-sectional view taken along the line BB of FIG. 1 with a part thereof omitted.

FIG. 5 is an exploded perspective view of the contact device.

FIG. 6 is a diagram showing an operation state of the assembling member and the abutment device when the rotating door is closed, at a cross-sectional position along the line C-C in FIG. 1.

FIG. 7 is a plan view showing another aspect of the case.

FIG. 8 is a plan sectional view showing a conventional door structure.

FIG. 9 is an enlarged perspective view of a main part of a conventional assembling member.

[Explanation of symbols]

 2 Revolving door 3 Revolving door 10 Summing member 11 Hinge tool 12 Pivot shaft 15 Coil spring 20 Abutment device 21 Mounting base 25 Swing piece 26 Coil spring 28 Elastic connection part

Claims (3)

(57) [Claims] 1. A pair of left and right pivoting doors that can open and close the front opening of the case in a double-opening manner, and a summoning portion that can close a gap between the summing portions formed between the free ends when the pivoting doors are closed. The summing member is rotatably attached to an inner surface portion of the free end side of one of the swing doors via a pivot shaft whose axial center is directed upward and downward, and a rear end by a spring. In a case door structure that is biased in an inclined posture, an abutment device is provided at a position corresponding to the above-mentioned gap of the assembling portion on at least one of the upper part and the lower part of the case front opening. The device includes a swinging piece that comes into contact with the summing member in the process of closing the rotating door on the side provided with the summing member, and a mounting base that holds the swinging piece so that it can swing back and forth with respect to the case. , Push the swinging piece toward the inner surface of the other rotating door in the closed state A door door structure for a case, comprising a spring that urges the summing member in close contact with the inner surfaces of both pivoting doors when the pivoting doors are closed. 2. A swing piece of the abutment device comes into contact with the inner surface of the other swinging door in the closed state when the swinging door having the summing member is opened. The case door structure according to claim 1. 3. The door of the case according to claim 1, wherein, in the abutment device, the mounting base portion and the swing piece are integrally formed via an elastic connecting portion that functions as a spring. Construction.