JP2000129968A - Door opening/closing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a door opening/closing device which is capable of integrating a handle part with a locking part, facilitating and ensuring a fitting work to a door, simplifying the whole constitution, and applicable to any kind of the door. SOLUTION: In fitting a base body 30 provided with a handle part 3A on one end 3a side and a locking part 3B on the other end 3b side to a door 1A, fitting holes 16, 17 are formed at specified fitting positions of the handle part 3A and the locking part 3B of the door 1A, and after one end 3a side of the base body 30 is passed through the fitting hole 16 for the handle part from a back surface side of the door 1A in an inclined condition, the base body 30 is turned to the fitting posture so that the handle part 3A is fitted to the fitting hole 16 from the forward surface side of the door 1A and the locking part 3B is fitted to the fitting hole 17 from the back surface side of the door 1A, respectively, and one end 3a side and the other end 3b side of the base body 30 are respectively engaged with the door 1A through engagement parts P, M.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a door opening / closing device which can be easily attached to a door without being restricted by the structure of the door.

[0002]

2. Description of the Related Art Generally, a door such as a locker or a library is provided with a door opening / closing device at a predetermined height.
This product has a pulling part that opens and closes the door exposed on the front of the door, and a locking mechanism for locking the door in the closed position is provided only with a locking part that serves as an operating force input part on the front of the door. It is customary that the other parts are exposed and hidden behind the door.

[0003]

In such a conventional door opening / closing device, the pulling portion and the locking portion are constituted by separate members, and these are separately attached to the door via screws or the like. The reason is that the pull part is usually fitted and mounted in the mounting hole provided in the door, and a flange part that is wider than the mounting hole is provided on the front side to cover the opening edge of the mounting hole, While the locking portion is mounted from the rear side of the door because the locking portion is mostly concealed on the rear side of the door as described above, the mounting direction is reversed.

[0004] For this reason, there are problems in that the number of steps involved in the mounting operation is large, the workability is extremely poor, and the number of various parts including screws is increased, leading to an increase in the manufacturing cost of rockers and the like. . On the other hand, one effective means is to provide a handle portion and a locking portion integrally on the base and to attach the base to a door so that the handle portion and the locking portion are simultaneously fixed at a predetermined position. Conceivable.
Specifically, of the door, a mounting hole is formed at each predetermined mounting position of the handle portion and the locking portion, one end side is positioned on the front side of the door via the mounting hole for the handle portion, and the other end side of the door is formed. After arranging the base on the rear side, the base is rotated to the mounting position, so that the handle portion is mounted on the mounting hole from the front side of the door, and the locking portion is mounted on the mounting hole from the rear side of the door. If it is configured so that it can be inserted, the locking portion and the pulling portion can be fixed integrally by simply holding the position thereafter. For example, since the locking portion is associated with the storage body via various transmission members and the like so that the door can be locked to the storage main body, conversely, the base is held at a predetermined mounting position only by those transmission members. It is also possible to put.

[0005] However, in the above-described mounting structure, when a key is inserted into the locking portion from the front side, an external force is accidentally applied to the locking portion, or the pulling portion is pulled toward the front, the base is closed at one end. A pivot moment is generated in a direction in which the other end side is tilted backward with respect to the fulcrum, and especially under a structure in which the locking portion is separated from the pull portion due to a transmission mechanism or the like, the pivot moment increases. If the fixing of the base depends only on the peripheral structure including the transmission mechanism and the like, there is a possibility that the base may fall off from the mounting hole.

[0006]

SUMMARY OF THE INVENTION The present invention has been made in view of the inconvenience of the prior art, and has as its object the purpose of integrating the handle portion and the locking portion while attaching the door portion to the door. It is an object of the present invention to provide a door opening / closing device which can facilitate the mounting operation, can ensure the mounting state thereof, and can be widely applied regardless of the type of the door.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS To achieve this, the door opening / closing apparatus of the present invention is constructed such that a base having a handle at one end and a lock at the other end is attached to the door.
A mounting hole is formed at each predetermined mounting position of the handle portion and the locking portion, and the base is disposed with one end positioned at the front side of the door and the other end positioned at the back side of the door via the mounting hole for the handle portion. Then, by rotating the base body to the mounting position, the pulling portion can be inserted into the mounting hole from the front side of the door, and the locking portion can be inserted into the mounting hole from the rear side of the door. In this position, one end and the other end of the base are engaged with the door via the respective engagement portions.

As described above, according to the present invention, the pull portion and the locking portion are integrally provided, and the pull portion and the locking portion are simultaneously fixed to a predetermined position by attaching the base to the door via the engaging portion. Therefore, it is not necessary to use a large number of screws or the like as compared with a case where they are separately attached to the door as separate objects, and the number of attachment steps can be reduced. Moreover, the base itself is fixed to the door, and the mounting structure does not depend on the surrounding structures, so that the proper mounting state is not impaired due to key operation on the locking portion, etc. The present invention can be effectively applied to a door.

The engagement portion between the other end of the base and the door is constituted by an engagement claw provided on the base and an engaged portion provided at a position on the back surface of the door where the engagement claw is engaged. It is easy to do. As a specific aspect, the engagement strength can be effectively increased by forming the engagement claw into a downward hook shape and bending the engaged portion into an upward L-shape. Further, as an engagement portion between one end side of the base and the door, a mounting hole for a handle portion, a flange portion provided at an outer peripheral position of the handle portion and slightly larger than an opening of the mounting hole, It is simple to use an engaging claw that engages with the back surface of the door when the flange portion behind the portion contacts the opening edge of the mounting hole from the front side.

As a specific example of the door, a bar provided so as to be able to protrude and retract into the base at least one of up and down, and a bar near the tip of the bar when the door is in the closed position, protrude the bar. In such a case, the locking portion may be held at the closed position by a mooring portion for mooring the distal end portion. In this case, the locking portion may be one that can selectively lock the bar at the protruding position.

In this case, in order to improve the convenience of the mounting operation, the distance between the bar and the rotating end of the rotating member provided on the base must be
It is preferable that the members are connected via an elastic engagement portion that engages by utilizing elastic deformation of the members. In the case where a connecting member is interposed between the bar and the rotating member, it is desirable to provide elastic engaging portions between the bar and the connecting member and between the connecting member and the rotating member. .

When the rotating member has a pair of rotating ends at positions opposed to each other with the pivot point interposed therebetween, the rotating member can be dropped from the base without using a lid member or the like separately. To prevent this, the rotating end and the corresponding upper bar or lower bar are connected via a connecting member, and at least one connecting member is inserted through a slit provided at a corresponding position on the base. Is effective.

In this case, in order to simplify the structure,
It is effective that one of the connecting members is an operation lever for urging the rotation member to rotate, and the operation end of the operation lever is pulled into the pull portion through the slit. It is convenient that the locking portion is attached to the base via an elastic engaging portion that engages using the elasticity of the member.

[0014]

An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a perspective view of the door opening and closing device of the present embodiment applied to the doors 1A and 1B of the storage, as viewed from the front side. FIG. Front views are shown respectively. In these figures, doors 1A and 1B are of a double-door type in which a hanging side edge (not shown) is hinged to an appropriate portion so as to be able to open and close a front opening on the storage body 2 side. 1A is a bar 11 or 12 provided so as to be able to protrude and retract in both vertical directions, and a bar 11 provided near the ceiling surface 21 and the floor surface 22 of the storage main body 2 and protruding when the door 1A is in the closed position. 12, mooring portions 13, 14 having slits 13a, 14a
(See FIG. 3 and FIG. 9). In addition, the edge 1a of the door 1A on the side opposite to the suspension origin.
Is formed with a bent piece 1a1 bent to the rear side, and an engaging piece 15 is provided so as to be able to protrude and retract toward the left door 1B. When closed at the side edge 1b, the anti-hanging side edge 1 of the right door 1A is closed.
The left and right doors are provided by disposing a bent piece 1b1 which further wraps around and overlaps the bent piece 1a1 of FIG. 1a and projects the engaging piece 15 to the rear side of the bent piece 1b1 in the closed position. 1A and 1B can be mutually restrained.

The door opening / closing device 3 is constructed by using the bars 11 and 12. As shown in FIGS. 4 and 5, the door opening / closing device 3 mainly includes a base 30 having a pull portion 3A on one end 3a side and a locking portion 3B on the other end 3b side. 1, 6 and 7, a rectangular mounting hole 16 is formed on the front surface of the door 1A at a position corresponding to the mounting of the handle portion 3A, and is formed at a position corresponding to the mounting of the locking portion 3B. A circular mounting hole 17 is formed.

On the other hand, the base 30 is formed by integrally molding a lower half region 31 in which the pull portion 3A is formed and an upper half region 32 in which the locking portion 3B is formed from a resin material. The area 31 is gradually filled in the inner space 31 from the periphery of the bottom wall toward the front.
b has a quadrangular pyramid shape that expands, and a finger can be inserted into the inner space 31b opening on the front side thereof to be used as a tab. A flange portion 31c which is slightly wider than the opening of the mounting hole 16 is formed at the outer peripheral position on the front side of the lower half region 31, and the base 30 is tilted as shown in FIG. One end 3a side is the mounting hole 1 of the door 1A.
6 from the back side of the door 1A, and thereafter, the upper edge portion of the flange portion 31c is rotated in a direction in which the entire portion stands up with the upper edge portion of the flange portion 31c abutting the upper opening edge of the mounting hole 16. The flange portion 31c can be brought into contact with the periphery of the opening of the mounting hole 16. Behind the flange portion 31c, as shown in FIGS. 2, 4, 6, and 7, when the flange portion 31c comes into contact with the opening edge of the mounting hole 16 from the front side, the door 1A The engaging hole 31 and the engaging claw 31d are provided at one end 3a side of the base 30 at a predetermined mounting position.
To form an engaging portion P of the present invention for engaging with the second member.

On the other hand, the upper half region 32 has a flat box shape, has an engaging claw 32b on the lower surface of the upper wall 32a, and has a mounting portion for mounting the locking portion 3B on the upper surface of the bottom wall 32c. Is formed. The engaging claw 32b is provided in a downward hook shape, and a metal fitting 33 having an upward L-shaped engaged portion 33a at the upper end is attached to the rear surface of the door 1A corresponding to the engaging claw 32b. And the engaging claw 32 at a predetermined mounting position.
By engaging b with the engaged portion 33a, the engaging portion M of the present invention can be formed. At that time, the engaging claw 3
The lower surface of 2b is tapered, and the engagement with the upstanding end portion of the engaged portion 33a is deepened along the lower surface, and a step provided at the end of the taper at a predetermined mounting position is covered. The engagement portion 33a falls down to the tip portion to complete the engagement. Therefore, a reliable engagement state can be obtained by a smooth operation. As shown in FIGS. 4 and 5, the mounting portion includes a rib 34a protruding at an appropriate position on the bottom wall 32c to mount an appropriate position on the base 34 serving as a base of the locking portion 3B; The base 34 is elastically deformed when passing through the base 34 and is restored after passing through the base 34 so that the base 34
The elastic claw 34b is pressed against and held on the base 4a so that the engaging portion Q of the present invention can be formed by the elastic claw 34b and the base 34.

A rotating member 35 having a pair of rotating ends 35a and 35b is disposed in the base 30 at a position opposite to the axis, and a connecting member is provided at one of the rotating ends 35a. The upper bar 11 is connected via a connecting rod 36, and the lower bar 12 is connected to the other rotating end 35b via an operating lever 37 as a connecting member. Specifically, FIG.
As shown in FIG. 8, a stepped hole 36b is provided at the lower end side of the connecting rod 36, and the stepped hole 36b projects from the small-diameter portion to the large-diameter portion of the turning end 35a of the turning member 35. The elastic projection 35c in the form of a split pin is engaged to form the elastic engaging portion S of the present invention, and a stepped hole 37a is provided at the upper end side of the operation lever 37. A resilient engaging portion T of the present invention is formed by engaging a split pin-shaped engaging projection 35d protruding from the rotating end 35b of the rotating member 35 toward the portion. At this time, the connecting rod 36
32a provided in the upper wall 32a of the base 30 with a part of
1 and an operation end 37c which is a part of the operation lever 37.
Is inserted into the slit 38a of the partition wall 38 having the slit 38a provided in the base 30 at a position where the handle portion 3A and the locking portion 3B are partitioned, and is drawn into the handle portion 3A. An upward elastic claw 36a is provided on the upper end of the connecting rod 36, and the downward engaging claw 3a is provided on the lower end of the operation lever 37.
7b, the upward elastic claw 36a is engaged with the opening window 11a provided at the lower end of the upper bar 11 at a predetermined mounting position of the base 30, thereby forming the elastic engaging portion R of the present invention, and The engaging claw 37b is engaged with the opening window 12a provided at the upper end of the lower bar 12 to form the elastic engaging portion U of the present invention. More specifically, the upper bar 11 has a U-shape in cross section, and the opening window 11a is provided on a bottom wall portion near the lower end of the upper bar 11, and the upper end of the connecting rod 36 is elastically upward. Nail 3
The portion excluding 6a is arranged at a position to be held in the U-shaped portion of the upper bar 11, at which position the elastic claw 36a is engaged with the opening window 11a from outside. Similarly, the lower bar 12 also has a U-shaped cross section, and the opening window 12a is provided on a bottom wall near the upper end of the lower bar 12.
The upper end side of the operation lever 37 is disposed at a position excluding the downward elastic claw 3a and is held in the U-shaped portion of the lower bar 12, and the elastic claw 37a is engaged with the opening window 12a from the outside at that position. ing. Further, a coil spring 39, which is an elastic body, for urging the rotating member 35 to rotate clockwise as viewed from the front, is interposed between the operation lever 37 and the base 30, thereby moving the upper bar 11 upward. It is urged in the direction in which it protrudes, and also in the direction in which the lower bar 12 protrudes downward. As shown schematically in FIG. 9, the upper and lower edges of the door 1A are locking means for locking the slits 10a and 10b through which the bars 11 and 12 can be inserted and the leading ends of the bars 11 and 12. In addition to providing the bent pieces 10c and 10d, leaf springs 10e and 10f for urging the door 1A toward the bent pieces 10c and 10d are provided.
When the door 1A is closed, the bars 11 and 12 are slit 10a and 10a.
b, which is a pressing means for urging toward a position that can be inserted through the slits 10a and 10b when the door 1A is closed. When the door 1A is opened by immersing the bars 11 and 12 in the slits 13a and 14a, and the door 1A is opened, the immersion state can be maintained by the leaf springs 10e and 10f and the bent pieces 10c and 10d. .

The locking portion 3B has the base 34 as a base, a cylinder portion 40 having a key insertion hole 40a on the front side mounted on the base 34, and a locking member 15a from the vicinity of the base 34 to the side. The front end of the cylinder portion 40 is attached to the mounting hole 17 shown in FIG. 1 provided in the door 1A at a predetermined mounting position at a predetermined mounting position. It is arranged to face. The rotating member 35 is
Actually, a boss hole 35e provided in the shaft center portion is rotatably fitted to the cylinder portion 40 so as to be pivotally supported. Then, a key (not shown) is inserted into the cylinder portion 40, and a forward / reverse operation of the key is performed to operate a mechanism (not shown) provided inside the cylinder portion 40, thereby moving the engagement piece 15 to the adjacent door 1B. At the same time as projecting to a position where it can be closed,
The bar 5a is arranged at a position to close the track when the bar 11 is immersed, so that the bar 11 can be prevented from being immersed and the bar 12 can be immersed. This is shown in FIGS. 10 and 11.
That is, the door 1A on the right side is locked using the storage body as a foothold via the bars 11 and 12, and the door 1B on the left side is also
And is locked using the right door 1A as a foothold.

To assemble each component on the base 30, first, the base 34 supporting the locking portion 3B is attached via the elastic engaging portion Q, and then the connecting rod 36 and the operating lever 37 are inserted into the slits 32a1 and 38a. The coil spring 39 is inserted between the operation lever 37 and the base 30 at that time.
Intervene. Then, the turning member 35 is externally fitted to the cylinder portion 40 of the locking portion 3B, and the turning member 35 is connected to the connecting rod 36 and the operating lever 37 via the elastic engaging portions S and T. . Thus, the attachment of the locking portion 3B, the rotating member 35, and the like to the base 30 is completed by a simple operation in a state where the attachment cannot be removed. Finally, as described above, the upper bar 11 and the lower bar 12 are respectively engaged with the elastic engaging portions R and U.
If it is connected to the connecting rod 36 and the operating lever 37 through the door, a mechanical association with the door 1A is made.

As described above, the door opening / closing device 3 of the present embodiment comprises the base 3 having the door 1A integrally provided with the pull portion 3A at one end 3a and the locking portion 3B at the other end 3b.
When the door 1A is mounted, mounting holes 16 and 17 are formed at predetermined mounting positions of the handle 3A and the locking portion 3B, respectively. The base 3 is tilted from the rear side of the door 1A.
After the one end 3a of the door 1A is inserted, the base 30 is rotated to the mounting posture, so that the handle 3A is inserted into the mounting hole 16 from the front side of the door 1A, and the locking part 3B is inserted from the rear side of the door 1A. The base 30 is configured so that it can be mounted in each of the mounting holes 17 and at one end 3a side and the other end 3
The b side is engaged with the door 1A via the engaging portions P and M, respectively.

As described above, in the present embodiment, the base 30 is attached to the door 1A via the engaging portions P and M, thereby simultaneously fixing the tab 3A and the locking portion 3B to a predetermined position of the door 1A. Therefore, the pulling portion 3A and the locking portion 3B
Are not required to use many screws or the like as compared with a case where the components are separately attached to the door 1A, and the number of attachment steps can be reduced. Moreover, the base 30 itself forms the door 1A.
And the mounting structure does not depend on the surrounding structures,
When the locking unit 3B is operated by a key, or when the locking unit 3B
In the event that an object accidentally collides, or even when the handle 3A is towed, it is possible to effectively prevent the base 30 from rotating easily and impairing the proper mounting state. be able to. In particular, in the case of the present embodiment, since the transmission members such as the rotating member 35 and the connecting members 36 and 37 are arranged, the distance from the pull part 3A to the locking part 3B is long, and an external force is applied to the locking part 3B. The rotation moment generated when the transmission member is not used is larger than when the transmission members are not used, but an appropriate fixing state can be maintained even with such a rotation moment. In addition, since the mounting of the base body is performed independently and does not depend on the peripheral structure, the present invention can be effectively applied to a door that does not use the transmission member or the like. In the case where the transmission member is not used, for example, a portion corresponding to the engagement piece 15 of the present embodiment is inserted into the slits provided in the doors 1A and 1B to keep the doors 1A and 1B closed. Type storage, and the like.

In particular, the engaging portion M between the other end 3b side of the base 30 and the door 1A is connected to the engaging claw 32b provided on the base 30 and the door 1A.
On the back surface of the base 30 is provided with an engaged portion 33a provided at a position where the engaging claw 32b is engaged. Mounting hole 16 and a flange portion 31c provided on the outer periphery of the handle portion 16 so as to be slightly wider than the opening of the mounting hole 16
And the engaging claw 31d that is located behind the flange portion 31c and engages with the back surface of the door 3A when the flange portion 31c abuts the opening edge of the mounting hole 16 from the front side. The one end 3a side of the base 30 can be securely attached to the door 1A with a simple structure. In this case, since the engaging claw 32b has a downward hook shape and the engaged portion 33a has an upward L-shape, the metal fitting 33 including the engaged portion 33a is made of a relatively strong plate material. By so setting, it is possible to strengthen the engagement of the engaging portion M and effectively support the external force or the like received by the locking portion 3B. In addition,
When it is necessary to release the engaging portion M for maintenance or the like, this embodiment inserts a tool such as a screwdriver into the gap of the slit 32a1 and inserts the engaged portion 33 into the gap.
It is configured to be able to depress a. At this time, a rib is protruded from the opening edge of the slit 32a1. Even if the engaged portion 33a is pushed down by applying a screwdriver to the rib, the shape of the opening edge can be easily reduced. Prevents collapse. The rib is always at a position surrounding the lower end of the upper bar 11 irrespective of the operating position of the upper bar 11, and also serves to prevent the lower end of the bar 11 from hitting the opening edge of the slit 32a1 and being separated from the connecting rod 36.

Further, the door 1A of the present embodiment comprises bars 11 and 12 provided so as to be able to protrude and retract from the base 30 upward and downward, and the door 1A.
Are in the closed position by the mooring portions 13 and 14 which are near the tips of the bars 11 and 12 when they are in the closed position and which are moored when the bars 11 and 12 are protruded. However, the locking portion 3B is provided with these bars 11,
Since it is only necessary to selectively lock the position 12 at the protruding position, the lock function can be configured with a simple structure.

In this case, as a configuration for holding the door 1A in the closed position, the bars 11 and 12 are urged upward and downward via a coil spring 39, and the bars 11 and 12 are attached to the upper edge or the lower edge of the door 1A. In addition to the provision of the bent pieces 10c and 10d which can lock the hooks 12, the sticks 11 and 12 are provided in the vicinity of the bars 11 and 12 when the door 1A is closed so as to be disengaged from the bent pieces 10c and 10d. Since the leaf springs 10e and 10f are provided, the upper and lower bars 11 and 12 can be moved from the opened door 1A.
Can be reliably prevented by a simple configuration.

The bars 11 and 12 of the present embodiment correspond to the base 3
A rotation end 35a of a rotation member 35 pivotably supported to be zero;
35b, and the locking portion 3B is
Although the lock member 15a can be moved in and out of a position where the trajectory of the immersion device 1 or 12 is blocked,
The bar 11 and the rotating end 35a of the rotating member 35 are connected via elastic engaging portions R and S which engage with each other by utilizing the elastic deformation of the member. Since the end and the end 35b are connected via the elastic engagement portions T and U which engage with each other by utilizing the elastic deformation of the member, one-touch mounting is possible.
This eliminates the need for cumbersome screwing work and tools for the screwing work, so that the convenience of the mounting work can be effectively improved.

The engagement is also performed by interposing a connecting rod 36 between the bar 11 and the rotating member 35, and interposing an operating lever 37 between the bar 12 and the rotating member 35. 36 and the operation lever 37 are connected to the rotating member 35 in advance,
After attaching the base 30 to the door 1A, the connecting rod 36 and the upper bar 1
1 and the operation lever 37 and the lower bar 12 only need to be connected, so that the work procedure can be simplified. In particular, since the operation lever 37 is used as a connecting member as it is, the components can be effectively used, and the input of the operation force to the rotating member 35 can be performed directly.

Since the operating end 37c of the operating lever 37 is also provided so as to extend into the pulling portion 3A located at the adjacent position, the pulling operation and the lever operation can be performed in a suitable manner. At this time, the slit 3 is formed on the other end 3b side of the base 30.
2a1, and a part of the connecting rod 36 is
An intermediate partition 38 having a slit 38a is provided near the middle of the base 30 and at a position between the locking portion 3B and the pull portion 3A.
Is inserted through the slit 38a, so that the connecting rod 36, the rotating member 35, and the operation lever 37 are prevented from binding with each other and dropping off from the base 30 in the pre-assembly stage. A special lid member or the like for closing 30 can be eliminated.

Further, in this embodiment, the locking portion 3B is provided with a cylinder portion 40 so that the front end face of the cylinder portion 40 faces the mounting hole 17 of the door 1A. Boss hole 35 provided in moving member 35
Since e is externally fitted and pivotally supported, it is not necessary to separately introduce a pivotal support mechanism, and simplification of the structure can be promoted.

Further, the locking portion 3B is also attached to the base 30 via the elastic engaging portion Q which engages by utilizing the elasticity of the member, so that the working convenience is further improved in this respect. Can be. Furthermore, in the present embodiment, the lock member 15a of the locking portion 3B is configured to be able to protrude and retract along with the engagement piece 15, and the engagement piece 15 locks the adjacent door 1B at the protruding position. Therefore, the locking function of the storage as a whole can be more effectively enhanced.

The specific configuration of each section is not limited to the illustrated embodiment, and various modifications can be made without departing from the spirit of the present invention. For example, in the above embodiment, the present invention is applied to a double-door type door, but is applied to a single-opening type door, and an engagement piece is projected from an edge of the door on a side opposite to a hanging source to cope with closing. When the engaging piece is moored to the mooring portion provided at the opening edge of the furniture body, the above-mentioned bar is unnecessary, and the present invention can be effectively applied to such a case. Can be. Further, it goes without saying that the present invention can be applied to a door opening / closing device in which the door is more securely locked at the closed position by using the engagement piece and the bar together.

[0032]

The present invention is embodied in the form described above and has the following effects. In other words, the door opening / closing device of the present invention can fix the handle portion and the locking portion simultaneously to a predetermined position of the door simply by attaching the base to the door via the engaging portion. There is no need to use a large number of components and the like, and no tools are required, and the number of mounting steps can be greatly reduced. In addition, since the base itself is fixed to the door, it is possible to maintain the proper mounting state of the base, and hence the pulling part and the locking part, without being affected by the external force acting on the locking part. Since the present invention does not depend on objects, the present invention can be effectively applied to various doors.

In particular, an engaging claw is provided on the locking portion side of the base, and when the locking portion is inserted into the mounting hole of the door from the back side, the engaging claw is engaged with the engaged portion provided on the back surface of the door. Or a flange portion is provided on the handle portion side of the base body, the handle portion is inserted into the mounting hole of the door from the front side, the flange portion is brought into contact, and the engagement provided behind the position at that position When the claws are configured to engage with the rear surface of the door, the base can be securely attached to the door with a simple structure. At this time, if the locking claw on the locking portion side is formed in a downward hook shape and the engaged portion on the back side of the door is formed in an upward L shape, both a simple mounting operation and a strong engagement state can be achieved. It becomes easier.

Further, by locking the bar with a locking portion with respect to the door that is kept closed by using the bar, a lock mechanism can be configured with a simple structure.
Further, in the case where the bar is protruded and retracted by the rotating member, if the connecting of the bar to the rotating member is performed at the elastic engagement portion, the bar can be attached with one touch, and the troublesome screwing work between parts and the Tools are not required, and the convenience of the mounting operation can be effectively improved.

The engagement is also performed with a connecting member interposed therebetween, and if the connecting member is inserted through a slit provided in the base, the rotating member and the connecting member are mutually restrained, and the engagement from the base is prevented. Dropping, and therefore, employment of a separate lid member can be eliminated. In particular, if the operating lever is used as it is as a connecting member, and its operating end is pulled into the handle through the slit, the parts can be effectively used, and the input of the operating force to the rotating member is preferably associated with the pull operation. Can be performed.

Further, if the locking portion is attached to the base by an elastic engaging portion which engages by utilizing the elasticity of the member, the convenience of work can be further improved.

[Brief description of the drawings]

FIG. 1 is a perspective view showing one embodiment of the present invention from a front side in a state where it is attached to a door.

FIG. 2 is a perspective view showing the embodiment from the back side of a door.

FIG. 3 is a front view of the same.

FIG. 4 is a perspective view showing the embodiment before being attached to a door.

FIG. 5 is an exploded perspective view of the same.

FIG. 6 is a partially broken side view for explaining the mounting procedure of the embodiment.

FIG. 7 is a partially broken bottom view for explaining the mounting state of the embodiment.

FIG. 8 is a partially enlarged sectional view of the embodiment.

FIG. 9 is another partially enlarged sectional view of the embodiment.

FIG. 10 is an exemplary front view for explaining the operation of the embodiment;

FIG. 11 is an exemplary front view for explaining the operation of the embodiment;

[Explanation of symbols]

 1A Door 3A Pull part 3B Lock part 3a One end 3b Other end 10c, 10d Locking means (bent piece) 11 Upper bar 12 Lower bar 13, 14 Mooring part 16, 17 Mounting hole DESCRIPTION OF SYMBOLS 30 ... Base | substrate 31c ... Flange part 31d ... Engagement claw 32a1, 38a ... Slit 32b ... Engagement claw 33a ... Engaged part 35 ... Rotating member 35a, 35b ... Rotating end 36 ... Connection member (connection rod) 37 ... Connecting member (operating lever) 38 ... Intermediate partition wall P ... Engagement part M ... Engagement part Q, R, S, T, U ... Elastic engagement part

Claims (10)

[Claims] 1. A door comprising a base provided with a pull portion on one end side and a lock portion on the other end side, wherein a predetermined mounting of the pull portion and the lock portion of the door is provided. A mounting hole is formed at each position, and the base is disposed with the one end positioned on the front side of the door and the other end positioned on the back side of the door via the mounting hole for the handle, and then the base is set in the mounting posture. By rotating the handle to the mounting hole from the front side of the door into the mounting hole and the locking portion from the rear side of the door into the mounting hole, respectively, and at that position one end of the base and A door opening and closing device characterized in that the other end side is engaged with a door via an engagement portion. 2. An engaging portion between the other end of the base and the door is formed by an engaging claw provided on the base and an engaged portion provided at a position on the rear surface of the door where the engaging claw is engaged. The door opening / closing device according to claim 1, wherein the door opening / closing device is configured. 3. An engaging claw having a downward hook shape and an engaged portion bent upward L-shaped.
The door opening and closing device according to the above. 4. An engagement portion between the one end of the base and the door, a mounting hole for a handle portion, and a flange portion provided at an outer peripheral position of the handle portion to be slightly larger than an opening of the mounting hole, 2. An engaging claw, which is located behind the flange portion and which engages with the back surface of the door when the flange portion contacts the opening edge of the mounting hole from the front side. , 2 or 3
The door opening and closing device according to the above. 5. A bar which is provided so as to be able to protrude and retract from the base toward at least one of upper and lower sides, and a case where the bar is projected near the tip of the bar when the door is in the closed position. And a mooring portion for mooring the distal end portion thereof, wherein the locking portion is capable of selectively locking the bar at the protruding position.
The door opening / closing device according to 2, 3 or 4. 6. A connection between the bar and a pivoting end of a pivoting member provided on the base via an elastic engaging portion engaged by utilizing elastic deformation of the member. The door opening / closing device according to claim 5, wherein 7. A connecting member is interposed between a bar and a rotating member, and an elastic engaging portion is provided between the bar and the connecting member and between the connecting member and the rotating member. 7. The door opening / closing device according to claim 6, wherein the door opening / closing device is provided. 8. A rotating member having a pair of rotating ends at positions opposed to each other with a pivot point interposed therebetween, and connecting members between each rotating end and a corresponding upper bar or lower bar. 8. The door opening and closing device according to claim 7, wherein the door opening and closing device is connected through a slit provided at a corresponding position of the base. 9. One of the connecting members is an operating lever for urging the rotating member to rotate, and the operating end of the operating lever is drawn into the puller through the slit. Item 8. The door opening / closing device according to Item 8. 10. The locking device according to claim 1, wherein the locking portion is attached to the base via an elastic engaging portion that engages by utilizing the elasticity of the member. , 7, 8 or 9.