JPH0728363Y2 - Latch device for drawers, doors, etc. - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a latching device for a movable body such as a drawer or a door, which can be unlocked very easily by operating a push button provided on the front surface. Is.

The details will be described with reference to the illustrated embodiment.

INDUSTRIAL APPLICABILITY The present invention can be used for drawers in cabinets, storages, etc., and latch devices for movable bodies such as doors.
FIG. 2 and FIG. 2 show an embodiment applied to a drawer.

In the figure, the drawer (2) is provided in the cabinet body (1) by an appropriate rail mechanism (not shown). The upper frame portion (1 ') of the cabinet body (1) is provided with a latch (3) capable of ascending and descending to lock the drawer (2). As shown in FIG. 3, the latch (3) has an engaging portion (5) at the lower end of the latch body (4), and has guide strips (6) ... And a receiving groove (7) which is opened to the side is formed. And
Inside the latch guide (8) (Fig. 6) provided on the upper frame portion (1 ') of the cabinet body (1), the engaging position (5) is projected and the engaged position is retracted. And the protruding position is regulated by the stopper (9) (FIG. 2), (FIG. 4), (FIG. 5).

On the other hand, the drawer (2) is provided with a locking portion (10) so as to engage with the engaging portion (5) of the latch (3) (Fig. 4).

Reference numeral (11) is a latch cover attached to the upper frame portion (1 ') of the cabinet body. The latch cover (11) covers the latch (3) and the push button (12) is attached to the latch (3).
And are installed at a predetermined interval. (11 ') is a front plate of the latch cover (11) (Fig. 5). As shown in FIG. 7, the push button (12) has guide strips (13) for guiding the movement to the periphery, and moves along the guide wall (14) formed in the latch cover (11). . The push button (12) is provided with an engaging edge (15) for restricting movement in the protruding direction, and is provided with a vertically long slot (16) opening in the lateral direction. The head is exposed to the outside from the latch cover (11) by being urged in the projecting direction by 17) (Fig. 8).

A latch shaft (18) is provided between the latch (3) and the push button (12) (Figs. 5 and 9). An intermediate portion (19) of the latch shaft (18) is rotatably supported by a receiving groove (20) formed in the inner surface of the latch cover (11) (tenth position).
In the figure, the left and right movements are restricted by the stoppers (21), (21) formed in the intermediate portion. The middle part (19)
Has a crank-shaped operation part (22) formed at one end, and a crank-shaped driven part (23) formed at the other end with an angular difference of approximately 90 ° from the operation part (22). Has been done. Therefore, if the operation section (22) is moved and the intermediate section (19) is rotated, the driven section (23) also moves, but the movement direction of the operation section and the driven section is about 90 degrees. Is changing. In addition, as shown in the figure, the arm (24) of the driven portion (23)
By increasing the length of the driven part (23) by the length of the arm (25) of the operation part (22), the movement amount of the driven part (23) can be largely moved.

The operating portion (22) of the latch shaft (18) is engaged with the elongated hole (16) of the push button (12) as shown in FIG. 5, and the driven portion (23) is connected to the latch ( 3) Receiving groove (7)
Is engaged with. The states shown in FIGS. 4, 5, and 8 show the state in which the latch (3) is in the projecting position. In this state, the latch (3) is urged by the spring (17) via the push button (12) and the latch shaft (18).
The engaging part (5) of is locked to the locking part (10) of the drawer (2),
Holding the drawer in the closed position.

When the push button (12) is pushed against the spring (17), the operating portion (22) is moved to the right in FIG. 8 and the arrow (26) in FIG.
Since the driven portion (23) is moved in the direction, the driven portion (23) moves in the direction of the arrow (27) in FIG. 4, and pushes the latch (3) upward in the figure, and the latch moves to the unlocked position. The engagement part (5) releases the drawer (2).

FIG. 11 shows an example of a biasing means for biasing the drawer in the opening direction. In the figure, a push rod (28) is provided at the rear of the drawer (2) so as to be movable in the axial direction, and the push rod (28) is biased by a spring (29) toward the rear plate (30) of the cabinet body (1). is there. As shown in the figure, in the state in which the drawer (2) is retracted, the tip of the push rod (28) contacts the rear plate (30), the spring (29) is compressed, and the drawer (2) is moved forward. The drawer (2) is not released because it is locked by the latch (3). Then, when the latch (3) moves to the unlocked position as described above,
Since the drawer (2) is pushed forward by the action of the spring (29), it can be easily opened by putting a hand on the upper edge of the drawer or the like. Instead of the biasing means by the push rod and the spring, other suitable biasing means can be provided.

When the pushing of the push button (12) is stopped, the push button (12) returns to the position shown in FIG. 8, so that the latch (3) also returns to the position shown in FIG. Even in this position, since the spring (17) of the push button (12) is urged via the latch shaft (18), pushing the drawer (2) into the cabinet body causes the latch (3) to move. The engaging part (5) of (1) moves upward when the inclined surface of the tip engages with the inner upper edge of the drawer (2) and corresponds to the recess of the locking part (10) of the drawer (2). Engage with the locking part (10),
Lock the drawer (2) in the closed position.

The above embodiment is an embodiment applied to a drawer as a movable body, and FIG. 12 shows an embodiment applied to a door. In the figure, the door (33) pivotally attached to the main body (32) by the hinge (31) is provided with the locking portion (10), and the horizontal frame portion (34) of the main body is almost the same as above. A latch (3), a latch shaft (18), a push button (12) and the like having the same structure are provided. Therefore, push button (12)
When is pressed, the latch (3) is moved to the unlocked position via the operating portion (22) of the latch shaft (18), so that the door (33) can be opened. At this time, the hinge (31) of the door (33)
Wind a spring around the part in the opening direction,
The door can be easily opened by providing a push rod similar to that in Fig. 11 and urging it in the opening direction.

The present invention is configured as described above, and the members constituting the latch device such as the latch (3), the push button (12), and the latch shaft (18) as described above are provided in front of the cabinet body (1) instead of the inside. Since it is installed in the frame part of the, the installation work is extremely easy, and since these members are covered with the latch cover (11), the appearance of the cabinet is not damaged and the push button (12) is latched. Since the latch shaft (18) is arranged at a predetermined distance from (3) and is connected with the latch shaft (18), the push button (12) is provided at a position where it is easy to operate, the latch (3) is pulled out, and the door etc. are effectively engaged. The latch cover (11) is convenient because it can be provided at a position where it can be stopped, and the push button (12) and the latch shaft (18) are attached to the latch cover (11). ) Just attach it to the frame , At the same time the latch axis (18)
The driven part (23) of the is engaged with the latch (3) through the opening (7) provided on the front surface, and the latch (3) and the push button (12).
Can be connected, which has the advantage that the assembly process can be significantly simplified.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 shows an embodiment of the present invention, FIG. 1 is a front view of a cabinet main body, FIG. 2 is a side view of the cabinet main body in which a side plate is omitted, 3 is a perspective view of the latch, FIG. 4 is a vertical sectional side view of a portion along the latch, FIG. 5 is a front view showing the relationship between the latch, the latch shaft and the push button, and FIG. 6 is a perspective view of the latch guide. FIG. 7 is a perspective view of the push button, FIG. 8 is a vertical sectional side view of the push button portion, FIG. 9 is a perspective view of the latch shaft, FIG. 10 is a cross-sectional view of the shaft supporting portion of the latch shaft, and FIG. FIG. 12 is a vertical sectional side view of a rear portion of the drawer showing an example of the biasing means, and FIG. 12 is a partial vertical sectional side view showing an embodiment of the door. (1) …… Cabinet, (2) …… Drawer, (3) ……
Latch, (12) …… Push button, (18) …… Latch shaft,
(19) …… Intermediate part, (22) …… Operating part, (23) …… Following part.

Claims (2)

[Scope of utility model registration request] 1. A latch cover (11) is provided on a front frame portion of a cabinet body (1) for latching a movable body such as a drawer or a door, and the frame portion also covers the latch (3). ) Is provided, and the latch cover (11) is provided with a push button (12) arranged at a predetermined distance from the latch (3).
And an operating portion (22) formed in a crank shape at one end, and a driven portion (23) formed in a crank shape at the other end with an angular difference of approximately 90 ° from the operating portion (22). Middle part (1
9) is pivotally supported (20) on the latch cover (11).
A latch shaft (18) is provided, the operating portion (22) is engaged with an elongated hole (16) formed in the push button (12), and the driven portion (23) is attached to the front surface of the latch (3). Engage with the receiving groove (7) opened in the
2) is urged by a spring (17) provided on the back surface to engage the engaging portion (5) of the latch (3) with the engaging portion (10) of the movable body through the latch shaft (18). Is held in the closed position, and the push button (12) is pushed against the spring (17) to release the latch engagement portion (5), thereby releasing the closure of the movable body. Latch device for doors, etc. 2. A latch device for a drawer, a door, etc. according to claim 1, wherein said movable body is biased in the opening direction by a biasing means.