JPH0116856Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a lock structure for a door of storage furniture, etc.

In the conventional door lock structure, hook members 5 are attached to both the upper and lower ends of a rotary vertical shaft 3 rotatably disposed along the back of a door 2 which is pivoted to an opening frame 1 of storage furniture or the like so as to be freely openable and closable. One example is one in which hook members 5, 5 are removably engaged with lock pins 9, 9 protruding from the upper and lower surfaces of the opening frame 1, but in this configuration, the door 2 is placed on the outside as shown in FIG. When the hook members 5, 5 are bent toward the lock pin 9,
There was a problem that it became difficult to lock into the lock 9, or it stopped locking, and the lock structure no longer functioned.

The present invention was developed in view of these conventional problems, and the centers of the first fitting hole provided on the top surface of the hook member and the second fitting hole provided on the bottom surface of the hook member are shifted, and the center of the first fitting hole provided on the top surface of the hook member is shifted, and the center of the second fitting hole provided on the bottom surface of the hook member is shifted. By removably fitting either the first fitting hole or the second fitting hole of the hook member, even if the door warps outward or inward, the hook member can be removed and installed with the top and bottom sides reversed. It is an object of the present invention to provide a lock structure for a door that can be adjusted to detachably lock a hook member to a lock pin.

In other words, the door lock structure of the present invention is based on the opening frame 1.
A rotary vertical shaft 3 is disposed along the back side of the door 2, which is pivoted to open and close freely. A first fitting hole 7 is provided on the upper surface of the hook member 5, which has become a part 6, and a second fitting hole 8 is provided on the bottom surface, and the center of the first fitting hole 7 and the center of the second fitting hole 8 are shifted, and the rotation is vertical. Lock pins 9 are selectively and detachably fitted into either the first fitting hole 7 or the second fitting hole 8 of the hook members 5, 5 into the upper and lower ends of the shaft 3, respectively, and protrude from both the upper and lower surfaces of the opening frame 1. The substantially C-shaped portion 6 of the hook members 5, 5 is removably engaged with the hook member 9. The present invention will be described below based on an embodiment shown in the accompanying drawings. As shown in FIG. 2, a rotating vertical shaft 3 having a D-shaped cross section is disposed via a fixed plate 10 along the back side of a door 1 which is pivotally supported on an opening frame 1 of a storage furniture A so as to be openable and closable. This rotating vertical shaft 3 is freely rotatable by a rotating operating section 4 formed from a bevel gear (not shown) or the like provided on the front surface. Reference numeral 5 denotes a hook member having a substantially C-shaped portion 6 at its tip. As shown in FIGS. 4 and 5, a first fitting hole 7 is provided on the top surface of the hook member 5, and a second fitting hole 8 is provided on the bottom surface. The first fitting hole 7 and the second fitting hole 8 are provided on the upper and lower surfaces of the hook member 5 with their respective centers shifted by a distance h. Each of the first fitting hole 7 and the second fitting hole 8 has a female threaded portion 11 on the inner peripheral surface thereof, and one end of the connecting pipe 12 having a D-shaped inner surface is connected to the first fitting hole 7 or the second fitting hole 8 through a mounting screw 13. It is attached to the fitting hole 8, and the end of the rotating vertical shaft 3 is detachably attached to the other end of this connecting pipe 12. In this case, the vertical axis of rotation 3
The hook member 5 attached to the upper end and the hook member 5 attached to the lower end have the ends of the substantially C-shaped portions 6 protruding in opposite directions due to the relationship between the first fitting hole 7 and the second fitting hole 8. Outer flanges 14, 14 are provided at both ends of the connecting pipe 12, and the curved portion 17 at the tip of the hook presser 15 is loosely fitted between the outer flanges 14, 14, and the hook presser main body 16 is fitted loosely between the outer flanges 14, 14. By fixing these to the back surface of the door 2, hook members 5, 5 are detachably and rotatably attached to both the upper and lower ends of the rotating vertical shaft 3. In this way, by rotating the hook members 5, 5 in the same direction, the substantially C-shaped portions 6, 6 can be removably locked to the lock pins 9, 9 protruding from both the upper and lower surfaces of the opening frame 1. Therefore, after the first fitting holes 7, 7 of the hook members 5, 5 are fitted into both the upper and lower ends of the rotating vertical shaft 3 via the connecting pipes 12, 12, the door 2 is warped inward,
If it becomes difficult for the approximately C-shaped portions 6, 6 of the hook members 5, 5 to engage with the lock pins 9, 9, remove the hook members 5, 5 from the rotating vertical shaft 3, and insert the hook members 5, 5 into the second fitting holes on the lower surface. 8, 8, the distance between the center of the first fitting hole 7 and the center of the second fitting hole 8 is h.
Since the hook members 5, 5 are separated by the distance h from the lock pins 9, 9, the substantially C-shaped portions 6, 6 can be smoothly locked. Conversely, the second fitting holes 8, 8 of the hook members 5, 5 are inserted into the connecting pipes 12, 1.
If the door 2 warps outward after being fitted onto both the upper and lower ends of the rotating vertical shaft 3 via the hook member 7,
By removing C-shaped portions 7 and fitting them into the first fitting holes, adjustment can be made so that the substantially C-shaped portions 6, 6 can be smoothly engaged with the lock pins 9, 9.

In this case, the hook members 5, 5 at both the upper and lower ends of the rotating vertical shaft 3 may be inverted or upside down, respectively, and the first fitting hole 7 or the second fitting hole 8 may be fitted into both the upper and lower ends of the rotating vertical shaft 3. It is. In the figure, 18 is a locking piece, and the hook members 5, 5
When the substantially C-shaped portions 6, 6 are locked to the lock pin, they are locked to a locked portion (not shown) provided on the side surface of the opening frame 1.

As explained above, in the lock structure of the door of the present invention, the center of the first fitting hole provided on the top surface of the hook member whose tip is approximately C-shaped, and the second fitting hole provided on the bottom surface. Either the first fitting hole or the second fitting hole of the hook member is selectively and removably fitted into both the upper and lower ends of a rotating vertical shaft which is offset from the center and freely rotatable along the back side of the door. Therefore, even if the door warps outward or inward and the approximately C-shaped part of the hook member no longer engages with the lock pin or becomes difficult to engage, the hook member must be removed from the rotating vertical shaft and the first fitting hole or second
By fitting into the fitting hole, since the centers of the first fitting hole and the second fitting hole are shifted, the approximately C-shaped portion of the hook member can be smoothly and detachably locked to the lock pin. It has the advantage of being adjustable.

[Brief explanation of drawings]

Fig. 1 is a schematic vertical sectional view showing a conventional example, Fig. 2 is a partially omitted perspective view showing an embodiment of the present invention, Fig. 3 is a sectional view taken along line XX in Fig. 2, and Fig. 4 is the same as above. an exploded perspective view showing the attachment state of the hook member and the connecting pipe;
5 is a YY sectional view of FIG. 4, FIG. 6 is a perspective view showing the attachment state of the hook member, connecting pipe, and hook presser, and FIG. 7 is an explanatory diagram of the operation of the same. 1 is an opening frame, 2 is a door, 3 is a rotational vertical axis, 4 is a rotation operation part, 5 is a hook member, 6 is a substantially C-shaped part, 7
8 is a first fitting hole, 8 is a second fitting hole, and 9 is a lock pin.

Claims (1)

[Scope of utility model registration request] A rotating vertical axis is arranged along the back side of the door which is pivoted to the opening frame so that it can be opened and closed, and the rotating vertical axis can be freely rotated by a rotary operation part provided on the front side of the door, and the tip is approximately C-shaped. A first fitting hole is provided on the top surface of the hook member, and a second fitting hole is provided on the bottom surface of the hook member.
The center of the fitting hole and the center of the second fitting hole are shifted from each other, and either the first fitting hole or the second fitting hole of the hook member is selectively and detachably fitted into the upper and lower ends of the rotating vertical shaft, respectively, and an opening frame is formed. A door lock structure in which a substantially C-shaped portion of a hook member is removably engaged with lock pins protruding from both the upper and lower sides of the door.