JPH0639033Y2 - Door opener - Google Patents

Description

TECHNICAL FIELD The present invention relates to a door opening / closing device provided in various furniture.

2. Description of the Related Art Conventionally, the opening direction of a door rotatably provided on furniture has been limited to one of, for example, right opening or left opening. However, depending on the location of the furniture, it may be difficult to carry out the work when loading or unloading the items to be stored in or out of the furniture. To solve this problem, various door opening / closing devices that can be opened from either the left or right have been proposed in Japanese Utility Model Publication No. Sho 61-98173, etc., but all of them have the problem of complicated structure and high cost. .

DISCLOSURE OF THE INVENTION Problem to be Solved by the Invention The present invention solves such a problem, and an object thereof is to provide a door opening / closing device which is simple in structure and inexpensive and which can open both sides.

Means for Solving the Problems In order to solve this problem, the present invention provides a board at each of the upper and lower ends of the left and right end portions of the front opening of the door mounting body or the upper and lower ends of the left and right end portions of the door. And a lever that is capable of holding the shaft and that is capable of holding the shaft, and a lever that can be rotated by overlapping with the base plate. A support device composed of a lock piece that can be moved back and forth with respect to a pivot point as a boundary is provided, and at the front opening portion of the door or door mounting body, the shaft that enters into the hole of the substrate of each support device is provided. Are provided at the upper and lower ends of the left and right end portions, and the shaft is provided with a flat portion facing the lock piece when the door is closed and an arcuate portion that pushes the lock piece backward when the door is rotated. One of the left and right ends of the body is the front The other shaft is configured to be detachable from the hole in a rotatable state fitted in the hole.

Operation With this configuration, it is possible to provide an inexpensive door opening / closing device that can be opened with a very simple configuration with a small number of parts.

Embodiment An embodiment of the present invention will be described below with reference to the drawings.

1 to 5, reference numeral 1 is a cabinet, and a door 3 is provided at a front opening 2 of the cabinet 1. The door 3 is openably and closably supported by supporting devices 6 provided at the left and right ends of the upper surface of the top plate 4 and the lower surface of the bottom plate 5 at the front end of the cabinet 1.

Specifically, each supporting device 6 has a substrate 7 whose front end projects forward from the front opening 2 of the cabinet 1, a substrate 7 (in the case of the supporting device 6 on the upper surface of the top plate 4), or a substrate 7 below (the lower surface of the bottom plate 5). (In the case of the supporting device 6 of FIG. 2), a holding lever 10 for holding the shaft 9 of the door 3 which has entered the hole 8 at the front end portion of the substrate 7 from the front side between the hole 8 and the holding lever 10, and A shaft piece 9 serving as a fulcrum of rotation is provided with a lock piece 11 which overlaps with the lever 10 in order to prevent the shaft 9 from coming off from the substrate 7 and the lever 10.

More specifically, the hole 8 at the front end of the substrate 7 is inclined toward the end of the cabinet 1 and the lever 10
Is pivotally supported on the substrate 7 by a shaft 12 at a position opposite to the end of the cabinet 1 with respect to the position where the hole 8 is formed. The lever 10 is formed with a hole 13 into which the shaft 9 of the door 3 is fitted. When the door 3 is closed, the lever 9 and the base plate 7 hold the shaft 9 and rotate when the door 3 rotates. The fulcrum-side shaft 9 is configured to be held by the lever 10 and the substrate 7. The lock piece 11 is overlapped with the lever 10 and is pivotally attached to the lever 10 by a shaft 14 and is engaged with a shaft 12 for pivotally supporting the lever 10 on the base plate 7 by means of an arc-shaped elongated hole 15. is doing. The shaft 14 is located rearward of the shaft 12 in the closed state of the door 3 and on the rotation fulcrum side when the door 3 is rotated, and the shaft 9 is provided with the hole 8 of the substrate 7 and the hole 13 of the lever 10. It is configured so as to be positioned in front of the shaft 12 in a state where the shaft 12 is pulled out. In this state, the lever 10
The hole 13 is directed forward so that the shaft 9 can be fitted from the front when the door 3 is closed. 16 is a shaft 9 from the holes 8 and 13
Is a coil spring for urging the lever 10 via the locking piece 11 so that the hole 13 of the lever 10 faces forward when it is pulled out, and the coil portion of this coil spring 16 is fitted onto the shaft 12 while One end is locked to the substrate 7, and the other end is locked to the lock piece 11. Further, the coil spring 16 functions to urge the lock piece 11 against the side plate 7a of the substrate 7 when the shaft 9 is fitted in the holes 8 and 13. Further, the shaft 9 has a circular outer surface that abuts the inner surfaces of the holes 8 and 13, and a contact portion with the lock piece 11 is cut off in a flat shape when the door 3 is closed. 9a is a flat portion thereof, and 9b is an arcuate portion other than the flat portion 9a.

As shown in FIG. 1, a pair of upper and lower support devices 6 having the above structure are provided at the left and right ends of the cabinet 1, respectively. Moreover, the left and right supporting devices 6 are provided symmetrically with respect to the center of the cabinet 1.

In the above structure, the door 3 is pivotally supported by the upper and lower supporting devices 6 at either one of the left and right end portions, and the upper and lower shafts 9 at either one of the left and right end portions are pivotally supported. The arcuate portion 9b other than 9a presses the lock piece 11 rearward, and at the same time, the front end of the elongated hole 15 is positioned in the shaft 12 by the force of the coil spring 16 to move the lock piece 11 forward and Rotation of the lever 10 in the opening direction is prevented. As a result, the shaft 9 on the side of the pivoting support is held by the substrate 7 and the lever 10 in a state where the shaft 9 is located inside the holes 8 and 13, and the door 3 does not come off from the cabinet 1. The shaft 9 on the side opposite to the pivotal support side is pulled out from the holes 8 and 13 of the supporting device 6, and at that time, the hole 13 of the lever 10 is moved forward so that the shaft 9 can be fitted when the door 3 is closed. It is facing. When the door 3 is closed, the shaft 9 is fitted in the hole 13 and the lock piece 11 is pushed backward by the shaft 9 to be in the state shown in FIG.

Incidentally, FIGS. 3 and 4 show the state of the opening / closing operation, and FIG. 3 shows the state in which the door 3 can be rotated around the shaft 9 pivotally supported by the supporting device 6 on the right side. When pivoting the shaft 9 on the left supporting device 6 to rotate the door 3, the door 3 is closed as shown in FIG. 4, and then the right end of the door 3 is pulled toward you. As a result, the shaft 9 on the right end side can be pulled out from the hole 8 and opened as shown in FIG.

By the way, in the above embodiment, the support device 6 is provided on the cabinet 1 and the shaft 9 is provided on the door 3. However, the opposite, that is, the shaft 9 is provided on the cabinet 1 and the support device 6 is provided on the door 3. Similar operations can be performed.

As described above, according to the present invention, it is possible to provide an inexpensive door opening / closing device having a small number of parts and an extremely simple structure.

[Brief description of drawings]

The drawings show one embodiment of the present invention. FIG. 1 is an overall plan view, FIG. 2 is an exploded perspective view of essential parts, and FIGS. 3 and 4 are enlarged plan views showing an operating state, and FIG. FIG. 4 is an enlarged plan view showing a state in which a door is opened on the side opposite to that of FIG. 3. 1 ... Cabinet, 2 ... Front opening, 3 ... Door, 4
... top plate, 5 ... bottom plate, 6 ... supporting device, 7 ... substrate,
7a ... Side plate, 8 ... Hole, 9 ... Shaft, 9a ... Flat part, 9b ...
… Circular arc, 10 …… Lever, 11 …… Lock piece, 12 ……
Shaft, 13 ... hole, 14 ... shaft, 15 ... long hole, 16 ... coil spring.

Claims (1)

[Scope of utility model registration request] 1. A board is provided at each of the upper and lower ends of the left and right end portions of the front opening of the door mounting body or at the upper and lower ends of the left and right end portions of the door, respectively.
A lever that has a hole that is paired with a shaft fitting hole formed in this substrate and that can hold a shaft and that is rotatable by overlapping the substrate, and a lever that is pivotally supported by the lever by overlapping this lever A support device consisting of a lock piece that can be moved back and forth with respect to the pivot point of the lever with respect to the substrate is provided.On the other hand, the front opening of the door or door mounting body is provided with a hole in the substrate of each of the support devices. The shaft for entering is provided at both upper and lower ends of the left and right end portions, and the shaft is provided with a flat portion facing the lock piece in a door closed state, and an arcuate portion for pressing the lock piece backward when the door is rotated, A door opening / closing device in which either one of the left and right ends of a door or a door mounting body is inserted into the hole and rotatable while the other shaft is detachably attached to the hole.