JPH0542215Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] The present invention locks a drawer stored in a cabinet or the like so that it does not pop out due to vibration, etc.
The present invention also relates to a locking device that can be easily pulled out as needed.

[Conventional technology]

This type of locking device in conventional drawers usually has a bend at the end of a pivot that is rotated by a pivot piece provided in the handle of the drawer.
The ratchet lever is adapted to be engaged with and disengaged from a locking projection protruding from the inner surface of the cabinet (see, for example, Japanese Utility Model Publication No. 54-24842).

[The problem that the idea attempts to solve]

Therefore, in the conventional type, the thickness of the front plate of the drawer that houses the locking device becomes thicker, reducing the actual storage volume of the drawer, and the plurality of link rods makes it difficult to connect the pivot piece and the latch lever. Since the drawers were linked together, the structure was complex and prone to failure, and noise was sometimes generated when the drawers were inserted or removed.

[Means to solve the problem]

In the present invention, the front end of a nearly horizontal pivoting piece facing rearward is pivoted to the front end of the inside upper part of a front-facing box-shaped handle provided on the front plate of a drawer in a cabinet, using pivot pins in the left-right direction. At the rear of the pivot pin, an upper horizontal rod at the center of a link rod having a downward U-shape in front view, which is provided along the rear surface of the front plate, is placed on the upper surface of the rotating piece, and the front plate The front part of a latch lever that faces the front-rear direction and has an upward hook at the rear end is pivoted on both ends of the rear surface so as to be rotatable around a left-right axis, and the upward hook is directed upward by a spring. , and engages the front end of the latch lever with the tip of the lower horizontal rod that faces outward and is provided at the lower end of the upper link rod. The above-mentioned problem is solved by providing a locking protrusion that protrudes inward and is engaged from below by the bias of a spring and detachable by upward rotation of the rotating piece.

[Effect]

When the drawer is stored, the upward hook at the rear end of the latch lever engages with the locking protrusion on the cabinet due to the spring, thereby preventing the drawer from popping out due to vibration.

When the pivot piece is rotated upward when pulling out the drawer, the link lever along the inner surface of the front plate of the drawer rises, and the front end of the latch lever with which it engages is pulled up against the spring. The engagement between the latch lever and the locking protrusion is released, and the drawer can be pulled out.

〔Example〕

FIG. 6 shows an article storage to which the present invention is applied, in which 1 is a cabinet, 2 is a drawer, and 3 is a
The front plate 4 of the drawer 2 is a front-facing box-shaped synthetic resin handle provided on the front plate 3.

As shown in FIG. 2, most of the handle 4 is recessed into the front plate 3, and its front end opening is open to the front surface of the front plate 3 (left side in FIG. 2).

As shown in FIG. 3, the upper piece 4a of the handle 4 is
Inside the front plate 3, it is inclined rearward and upward.

Pivot pins 6 are pivotally attached to the front upper portions of both side pieces 4b of the handle 4 and project outward from the front ends of both side end surfaces of a horizontal plate-shaped rotating piece 5 facing in the front-rear direction.

A V-shaped groove 7 is cut into the both side pieces 4b from the upper end, and a stop pin 8 protruding outward from the center of both side end surfaces of the rotating piece 5 is fitted into the bottom of the V-shaped groove 7. , the rotating piece 5 is always held horizontally.

Push-up protrusions 9 are protruded from key points on the upper surface of the rotating piece 5, and are fitted into through holes 10 formed in the upper piece 4a of the handle 4.

On the push-up projection 9, an upper horizontal rod 11a of a link rod 11, which is provided along the rear surface of the front plate 3 and faces downward in front view, is placed. Vertical rods 11b are connected downward at both ends of the upper horizontal rod 11a.
A lower horizontal rod 11c facing outward is connected to the lower end of 1b.

The vertical rod 11b of the link rod 11 is supported in a vertically extending U-shaped groove 12a formed in the center of a guide plate 12 fixed to the rear surface of the front plate 3 so as to be able to rise and fall.

The lower horizontal rod 11c of the link rod 11 is connected to the front plate 3.
It is held movably up and down between the front plate 3 and the upper half of the support plate 13, which is fixed below the guide plate 12 on the rear surface and whose upper half protrudes rearward.

A rectangular cylindrical support 14 facing in the front-rear direction is fitted from the rear edges of both ends of the front plate 3 into mounting holes 15 cut into the inner edge of the bent piece 3a provided parallel to the front plate 3. ing. A pivot shaft 16 extending in the left-right direction is provided through the support body 14 in the center thereof in the vertical direction.

A long plate-shaped latch lever 17 is inserted into each support body 14, and near the front end of the latch lever 17, a pivot shaft 16 is inserted.
The rear part is urged upward by a spring 18.

An engagement groove 19 is cut into the front end of the latch lever 17 from below.
The tip of the lower horizontal rod 11c of No. 1 is engaged from below.

The upward hook 20, which is provided on the upper surface of the rear end of the latch lever 17 and has an inclined side 20a facing forward and upward,
A locking protrusion 21 protruding from the inner surface of the cabinet 1
It is engaged with the rear side of.

In order to pull out the drawer 2, insert your finger into the handle 4 and rotate the rotating piece 5 upward, and the link rod 11 will be lifted by the push-up projection 9, and the tip of the lower horizontal rod 11c of the link rod 11 will be The engagement groove 19 at the front end of the latch lever 17 is connected to the spring 18.
be lifted up against the

Therefore, the latch lever 17 rotates around the pivot shaft 16, and the upward hook 20 descends and disengages from the stop protrusion 21, allowing the drawer to be pulled out.

When the drawn drawer 2 is pushed in, the inclined side 20a of the upper hook 20 facing upward and forward comes into contact with the lower edge of the locking protrusion 21, and the upper hook 20 rotates downward to lock the locking protrusion 21. Then, due to the spring 18, the upward hook 20 is pivoted upward and engages the rear side of the locking projection 21, and the drawer 2 is locked.

[Effect of idea]

The horizontal rotating piece in the handle provided in the center of the front panel of the drawer and the latch levers provided at both ends of the front panel are linked by a single link rod along the rear surface of the front panel. The thickness of the drawer can be reduced, which increases the storage volume of the drawer.

Furthermore, since the structure is simple, there is little risk of failure.

No noise is generated when the drawer is put in and taken out.

[Brief explanation of the drawing]

Fig. 1 is an inner view of the front plate of a drawer to which the present invention is applied, Fig. 2 is an enlarged sectional view taken along the line A-A in Fig. 1, and Fig. 3 is an enlarged sectional view taken along the line B-B in Fig. 1. FIG. 4 is a longitudinal sectional side view of the latch support, FIG. 5 is a side view of the latch lever, and FIG. 6 is a front view of the article storage to which the present invention is applied. 1...cabinet, 2...drawer, 3...front plate, 3a...bend piece, 4...handle, 4a...
Upper piece, 4b... Side piece, 5... Rotating piece, 6... Pivot pin, 7... V-shaped groove, 8... Stop pin, 9... Push-up projection, 10... Through hole, 11... ...Link rod, 11
a... Upper horizontal rod, 11b... Vertical rod, 11c...
... Lower horizontal rod, 12 ... Guide plate, 13 ... Support plate, 14 ... Support body, 15 ... Mounting hole, 16 ...
Pivot, 17... Latch lever, 18... Spring, 1
9... Engagement groove, 20... Upward hook, 20a...
Inclined piece, 21...locking protrusion.

Claims (1)

[Scope of utility model registration request] The front end of a nearly horizontal pivoting piece facing backward is pivoted to the front end of the inside upper part of the front-facing box-shaped handle provided on the front plate of the drawer inside the cabinet, with a pivot pin in the left and right direction. At the rear of the pin, the upper horizontal rod at the center of the downward U-shaped link rod provided along the rear surface of the front plate is placed on the upper surface of the rotating piece, and both ends of the rear surface of the front plate are placed. The front part of the latch lever, which faces the front-rear direction and has an upward hook at the rear end, is pivotally supported around a left-right axis,
The spring urges the upward hook upward, and engages the front end of the latch lever with the tip of the lower horizontal rod that faces outward and is provided at the lower end of the link rod. When the drawer is stored, the upward hook is engaged from below by the bias of a spring, and the drawer is provided with a locking protrusion that protrudes inward and can be detached by upward rotation of the rotating piece. locking device.