JP2003174944A - Drawer support device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prevent a drawer from being drawn out by mistake or intentionally in the lock state of the drawer by surely inhibiting lift-up of the drawer when the drawer is closed in a drawer apparatus such as a cabinet. <P>SOLUTION: In this drawer support device with a lock, in locking, the drawer 2 is drawn forward while being lifted up to be unlocked. The side of the drawer 2 is provided with a projection 11b superposed right under an inward piece 4b projected on the inner surface of a box to thereby inhibit floating of the drawer 2. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

FIELD OF THE INVENTION The present invention relates to a drawer support device.

[0002]

2. Description of the Related Art In a suspension type drawer in a cabinet or a desk, the drawer is supported by a box through a slide device so that the drawer can be smoothly taken in and out.

[0003]

In the above-mentioned slide device, usually, a plurality of rails are fitted to each other with steel balls or rollers interposed therebetween. There is some play between.

Therefore, the drawer supported by the slide device can be slightly lifted within the play between the rails when it is accommodated in the box.

For example, in a cabinet having a plurality of drawers, when pulling out a drawer at a lower position,
The user often lifts the drawer slightly and pulls it out a little. Therefore, there is a possibility that the drawer and the drawer directly above it come into contact with each other and make an unpleasant sound or damage the drawer.

In addition, in a cabinet with a lock, an elevating rod is provided on the inner surface of the box body and is elevated by a key operation of a cylinder lock, and a pin is provided on either one of the elevating rod and the side surface of the drawer so as to project. On the other hand, on the other hand, there is one in which a locking piece is provided so as to be at the same height as the pin due to the vertical movement of the elevating rod so as to prevent the relative forward and backward movement of the pin.

[0007] In such a cabinet with a lock, if the drawer is lifted and pulled forward, the pin may get over the locking piece and the lock may come off, which is a concern for safety.

The present invention has been made in view of the above-mentioned problems of the prior art, and in a drawer device such as a cabinet, it is ensured that the drawer is lifted when the drawer is closed. By blocking
It is an object of the present invention to provide a drawer support device that solves the above problems.

[0009]

According to the present invention, the above problems can be solved as follows.

(1) In the locked state, when the drawer is pulled up and pulled forward, the lock is released and the drawer can be pulled out. At the time of closing, a protrusion is provided immediately below the inwardly projecting piece provided on the inner surface of the box body so as to prevent the drawer from floating.

(2) An elevating rod is provided on the inner surface of the box body so that it can be moved up and down by a key operation of a cylinder lock, and either one of the elevating rod and a side surface of a drawer that is supported so that it can be inserted into and removed from the box body. On the other hand, a pin is projected on the other side, and on the other side, the vertical movement of the elevating rod makes the height equal to the pin and blocks the relative forward and backward movement of the pin, and the relative position of the pin in the vertical direction apart from the pin. In a drawer support device with a lock that is provided with a locking means that can move relative to a position that allows such forward and backward movement, a side surface of the drawer is provided with an inwardly extending piece that protrudes from the inner surface of the box when the drawer is closed. Protrusions are provided directly below to prevent the drawer from floating.

(3) In the above item (1) or (2), a movable rail attached to the side surface of the drawer is slidably attached to a fixed rail fixed to the inner surface of the box body and oriented in the front-rear direction. By supporting the drawer so that it can be freely taken in and out, and providing the inward piece on the fixed rail,
Protrusions are provided on the side surface of the drawer.

[0013]

[Function] When the drawer is housed in the box, the inward piece provided on the box blocks above the projection provided on the drawer.
Even if an attempt is made to lift the drawer, the inward piece and the protrusion engage with each other to prevent the drawer from rising.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment in which the present invention is applied to a cabinet with a lock having a simultaneous drawer preventing function for a plurality of drawers will be described with reference to the accompanying drawings.

FIG. 1 is a front view of a cabinet, in which a box (1) accommodates three upper and lower drawers (2).

FIGS. 2 and 3 show a slide device (3) for pulling the drawer (2) in and out of the box (1).
The right side of (2) is shown.

The slide device (3) comprises a fixed rail (4), an intermediate rail (5) and a movable rail (6).

The fixed rail (4) has a base piece (4
The inwardly facing pieces (4b) and (4c) are connected to the upper and lower edges of (a), respectively, and have an inward U-shaped cross section.

A pair of upper and lower downward L-shaped locking pieces (4d) (4d) cut and raised outward from a proper position of the base piece (4a) of the fixed rail (4) are attached to the box (1). ) Is locked to the lower edges of the engaging holes (8) and (8) formed in the inner surface plate (7a) of the side plate (7) having the double wall structure, the fixed rail (4) is fixed to the side plate (7). It is horizontally fixed to the inner surface of 7) in the front-back direction.

The intermediate rail (5) has a base piece (5
The inwardly facing pieces (5b) and (5c) are connected to the upper and lower edges of (a) to form an inward U-shaped cross section, and the upper and lower inwardly facing pieces (5b) and (5c) and the fixed rail (4) Steel balls (9) are respectively interposed between the inward facing pieces (4b) and (4c) and are fitted into the fixed rail (4).

The movable rail (6) has a base piece (6
The outer rails (6b) and (6c) are connected to the upper and lower edges of (a) in a U-shaped cross section, and the upper and lower outer rails (6b) (6c) and the intermediate rail
Between the upper and lower inward strips (5b) and (5c) of (5), steel balls (1
It is fitted in the intermediate rail (5) by interposing 0).

At the front and rear ends of the base piece (6a) of the movable rail (6), an L-shaped locking piece (6d) is cut and raised inward. This locking piece (6d), the side plate (2a) of the drawer (2)
The drawer (2) is fitted into the engaging hole (12) formed in the lower part of the outwardly U-shaped bulging portion (11a) formed in the important part of the holding plate (11) fixed to It is supported by a movable rail (6).

When the drawer (12) is closed, the upper portion of the front end of the holding plate (11) is superposed immediately below the front end of the inwardly facing piece (4b) above the fixed rail (4), and the drawer (2). The outward protrusions (11b) are arranged so as to prevent the floating of the

Next, referring to FIGS. 4 to 7, the drawer (2)
The simultaneous pullout prevention mechanism and the lock mechanism will be described. A pin (20) is provided on the outer surface (only the right one is shown) of each side plate (2a) of each drawer (2) in a prominent position.

On the inner surface of the inner surface plate (7a) of the side plate (7) of the box body (1), there is formed a recessed groove (21) which is long in the up-down direction and is formed in the recessed groove (21). An elevating rod (22), which is slightly shorter than the height of the box (1), is fitted to the box so as to be vertically movable. (23) is
A pair of upper and lower support plates for preventing the lifting rod (22) from falling out of the concave groove (21), and fixed to the side plate (7) so as to straddle the concave groove (21).

A known catch (24) is provided between the lower end of the elevating rod (22) and the lower support plate (23).

The catch (24) is attached to the lower surface of the lower support plate (23) and the diamond-shaped projection (25) projecting from the inner surface of the lower end of the lifting rod (22), and the lifting rod (22). 5) rises to the position shown in FIG. 5, a pair of elastic gripping pieces (26) made of leaf spring material for gripping the protrusion (25) and holding the lifting rod (22) at that position. It consists of

A board (28) of a locking means (27) is fixed to the right elevating rod (22) at a position substantially equal to each pin (20).

Downward chevron-shaped push-up protrusions (29) are connected to the upper portion of the inner side surface of the substrate (28), and upward-angled chevron-shaped pushing protrusions (30) are connected to the lower portion of the inner side surface. ) (30) is formed with a slanting groove (31) facing the front lower side through which the pin (20) can be inserted in the front and rear. The rear end surface of the pressing protrusion (30) forms a vertical stopper surface (30a).

At the position corresponding to each drawer (2) on the inner surface of the left lifting rod (22), the same pressing protrusion (3) as described above is provided.
Only 0) is stuck.

As shown in FIG. 7, an engaging hole (32) is provided at the upper end of both lifting rods (22), and a box body is provided in both engaging holes (32).
A suspending support piece (33a) extending in the left-right direction from the front end of a locking bar (33) arranged in the upper part of (1) is fitted so as to be slightly movable in the vertical direction.

A laterally elongated hole (34) is formed at the center of the front end surface of the locking bar (33), and a pair of left and right laterally elongated holes (35) (right (Not shown) is perforated.

In the laterally long hole (35), there is a hook (3) connected to the rising portion of the L-shaped support piece (36) forming a part of the upper frame of the box (1).
7) engages detachably from below, and the locking bar (33)
The front end portion can be slightly rotated in the vertical direction around the engaging portion with the hook (37). An actuating pin (39) projecting from the rear eccentric position of the cylinder lock (38) fitted in the upper frame is engaged with the horizontally elongated hole (34) in the center of the front part.

In the above apparatus, as shown in FIG.
When the full drawer (2) is pushed in and the cylinder lock (38) is unlocked, both lifting rods (22) are located at the lower limit due to their own weight, and at that time, the inclination of each locking means (27) is increased. The rear end of the groove (31) is located just before the pin (20) of each drawer (2). Therefore each drawer (2) can be pulled out freely and catch
The elastic gripping piece (26) and the protrusion (25) of (24) are vertically separated.

As shown in FIG. 5, for example, the middle drawer
When you pull out (2), the pin (20) on the right side is the middle locking means.
When passing through the slanted groove (31) of (27), the push-up protrusion (29) is pushed up to raise all the locking means (27) together with the lifting rod (22) on the right side, and the protrusion ( 25) fits into the elastic gripping piece (26) and elastically engages.

Therefore, even after passing through the pin (20), the elevating rod (22) on the right side does not descend, and the other pins (20) are pushed down by the pushing protrusions (29).
It is located immediately below the lower part of the stopper (29a), and the upper and lower drawers (2) cannot be pulled out because their pins (20) are blocked by the pressing projections (29) at the front.

At this time, the left lifting rod (22) remains at the lower limit and does not hinder the movement of the left pin (20).

In the above-mentioned state, when the middle drawer (2) is pushed in, when the right pin (20) passes through the inclined groove (31) of the middle locking means (27) from the front, Since the push-down protrusion (30) is pushed down, the lifting rod (22) is also lowered, and the catch (2
The protrusion (25) of 4) is forcibly disengaged from the elastic gripping piece (26), and the elevating rod (22) on the right side further descends slightly due to its own weight to reach the state shown in FIG. The drawer (2) can be withdrawn.

In the state shown in FIG. 4, the cylinder lock (38)
When the locking operation is performed, the operating pin (39) that is eccentrically rotated causes the front portion of the locking bar (33) to rotate upward, and the suspension bar (33) thereof is rotated.
As shown in FIG. 6, both lifting rods (22) suspended from (a) are slightly raised together with the locking means (27), and the upper part of the stopper (30a) of the pressing protrusion (30) is Since the front of each pin (20) is blocked, the entire drawer (2) is locked so that it cannot be pulled out.

At this time, since the both elevating rods (22) do not rise as much as the above-mentioned simultaneous withdrawal prevention, the catch (24) does not engage. Therefore, if you unlock the cylinder lock (38),
Both lifting rods (22) are lowered by their own weight to the state shown in FIG. 4 and unlocked, so that the locking and unlocking operation is light.

In a cabinet provided with such a simultaneous pullout prevention mechanism and a lock mechanism, an appropriate gap is provided between the upper and lower sides of each drawer (2), and a slide device is also provided.
Since some play is provided between the rails (4), (6) and (8) of (3), conventionally, the drawer (2) is lifted,
It was possible to pull out the drawer (2) by moving the pin (20) upward from the stopper surface (33a) of the pressing protrusion (30).

However, in this embodiment, when the drawer (2) is to be lifted up, as described above, the holding plate
The protrusion (11b) of (11) is the inward piece (4) above the fixed rail (4).
Since the drawer (2) is prevented from floating by coming into contact with the lower surface of b), the pin (20) does not move above the stopper surface (30a) and the drawer (2) is not pulled out. .

Further, the user can, for example, draw out the bottommost drawer (2).
When pulling out the drawer (2), the drawer (2) does not float up even if you pull it up while pulling up the drawer (2), so this drawer (2) and the drawer (2) immediately above it
There is no risk that they will come into contact with each other and make an unpleasant sound, or both will be damaged.

Further, by engaging the engaging hole (12) of the holding plate (11) with the upward locking piece (6d) of the movable rail (6), the drawer (2) is attached to the movable rail (6). Since it is locked and supported, the engagement between the engagement hole (12) and the locking piece (6d) may be disengaged when the drawer (2) is lifted, but according to this embodiment, the drawer (2) is When 2) is housed in the box (1), there is no such possibility because the protrusion (11b) is superposed on the inward piece (4b) of the fixed rail (4).

In the above-mentioned embodiment, the right lifting rod (2
Only in 2), the locking means (27) having the simultaneous withdrawal prevention function and the locking / unlocking function is provided, and the left lifting rod (22) is provided with the pressing protrusion (30) having only the locking function. , The left lifting rod (22) is also provided with a locking means (27), and the left lifting rod (22)
A catch (24) may be provided also between the left side plate (2a) and the left side plate (2a) so that the drawer (2) side can exhibit the simultaneous pullout preventing function.

On the contrary, the left lifting rod (22) may be omitted, and the simultaneous pulling-out preventing function and the locking function may be exhibited only by the right lifting rod (22).

Furthermore, the pin (20) is provided on the lifting rod (22) so as to project,
The locking means (27) may be provided on the drawer (2) side. In this case, in order to obtain the same operation mode as that of the above-described embodiment, the locking means (27) may be attached to the side surface of the drawer (2) in the upside-down direction from the above-mentioned one.

In the first embodiment, the projection (11b) is provided on the holding plate (11), but a similar projection may be provided integrally with the movable rail (6). In this way, the slide device
It is possible to incorporate only the drawer uplifting prevention mechanism in (3), and it can be easily applied to any drawer without any processing on the drawer (2) side.

Next, a second embodiment of the present invention will be described with reference to FIG. The same members as those in the first embodiment are designated by the same reference numerals, and detailed description thereof will be omitted.

In this embodiment, the protrusion (11a) of the holding plate (11) is omitted, and instead the protrusion (4a) is directly attached to the side plate (2a) of the drawer (2).
0) is projected, and the inner surface plate (7) of the side plate (7) of the box (1) is
An inwardly facing piece (41) is provided on the inner side surface of a) so as to overlap with the upper side of the protrusion (40) when the drawer (2) is housed in the box (1).

Even when the drawer (2) is housed in the box (1), the same effects as those of the previous embodiment can be obtained by the projection (40) and the inward facing piece (41). This is convenient because it can be easily applied to existing cabinets.

[0052]

According to the present invention, the following effects can be obtained. (a) Even if the user lifts the drawer and tries to pull it toward you, the drawer does not float up. Therefore, this drawer and the drawer at the immediately upper stage, for example, make an unpleasant sound or both sound. No damage (all claims).

(B) In the locked state of the drawer, the drawer will not be accidentally or intentionally pulled out,
It is effective for security (all claims).

(C) If the protrusion is provided on a part of the movable rail (or a member for attaching the movable rail to the drawer) as in the invention described in claim 2, it is not necessary to perform special processing on the drawer itself. A slide device to which the present invention is applied, that is, a slide device including a fixed rail, an intermediate rail, a movable rail, and a holding plate that is a member for attaching the movable rail to the drawer as needed, is provided on a side surface of the drawer similar to the conventional one. The present invention can be easily applied only by mounting. Also, if the protrusion is provided on the member that attaches the movable rail to the drawer, and the member is inserted into the locking piece provided on the movable rail from above and supported, the member and the movable rail are prevented from coming off. You can also do it.

[Brief description of drawings]

FIG. 1 is a front view of a cabinet including a first embodiment of the present invention.

FIG. 2 is a partially cutaway enlarged perspective view of the same main part.

FIG. 3 is likewise an enlarged vertical front view of a main part.

FIG. 4 is a schematic vertical sectional side view of the cabinet when the cabinet is unlocked.

FIG. 5 is a schematic vertical cross-sectional side view when the drawer of the middle stage is pulled out from the state of FIG.

FIG. 6 is a schematic vertical sectional side view of the cabinet when the cabinet is locked.

FIG. 7 is a partially cutaway perspective view of the lock portion of the same.

FIG. 8 is a vertical cross-sectional view of a main part of a second embodiment of the present invention.

[Explanation of symbols]

(1) Box (2) Withdrawal (2a) Side plate (3) Slide device (4) Fixed rail (4a) Base piece (4b) (4c) Inward facing piece (4d) Locking piece (5) Intermediate rail (5a) (5b) Inward facing piece (5c) Lower piece (6) Movable rail (6a) Base piece (6b) (6c) Outward facing piece (6d) Locking piece (7) Side plate (7a) Inner surface plate (8) Engagement hole (9) (10) Steel balls (11) Holding plate (11a) Bulging part (11b) Outward protrusion (12) Engagement hole (20) pin (21) Groove (22) Lifting rod (23) Support plate (24) Catch (25) Pole (26) Elastic gripping piece (27) Locking means (28) Substrate (29) Push-up protrusion (30) Press protrusion (30a) Stopper surface (31) Inclined groove (32) Engagement hole (33) Rocking bar (33a) Suspension support (34) (35) Horizontal hole (36) Support piece (37) Hook (38) Cylinder lock (39) Operating pin (40) Protrusion (41) Introvert

Claims (3)

[Claims] 1. A drawer support device with a lock in which a drawer can be pulled out by pulling the drawer forward while lifting the drawer in a locked state, and closing the drawer on a side surface of the drawer. Sometimes, a drawer support device is provided with a projection that overlaps directly under an inwardly projecting piece provided on the inner surface of the box to prevent the drawer from floating. 2. A box body is provided with an elevating rod that can be moved up and down by a key operation of a cylinder lock, and one of the elevating rod and a side surface of a drawer that is supported so that it can be inserted into and removed from the box body. On the other side, the pin is projected and the vertical movement of the elevating rod makes the height equal to that of the pin to block the relative forward and backward movement of the pin and the relative distance between the pin and the vertical direction. In a drawer support device with a lock that is provided with a locking means that can move relative to a position that allows forward and backward movement, on the side surface of the drawer, directly below the inward piece that protrudes on the inner surface of the box when the drawer is closed. A drawer support device, characterized in that it is provided with a protrusion that is superposed on the projection to prevent the drawer from rising. 3. A drawer can be freely taken in and out by fitting a movable rail attached to the side surface of the drawer to a fixed rail fixed to the inner surface of the box body and facing the front-back direction so as to be slidable by sandwiching the intermediate rail. 3. The drawer support device according to claim 1, wherein the drawer support device is provided with the inward facing piece on the fixed rail and the projection on the side surface of the drawer.