JP3668971B2 - Drawer support device - Google Patents

Description

[0001]
[Industrial application fields]
The present invention relates to a drawer support apparatus.
[0002]
[Prior art]
Suspension-type drawers in cabinets, desks, etc. can be smoothly put in and out by supporting the drawers on a box through a slide device.
[0003]
[Problems to be solved by the invention]
The above-mentioned slide device is usually a plurality of rails fitted with each other with steel balls or rollers interposed between them, but in order to make the insertion and withdrawal smooth, some play is provided between the rails. ing.
[0004]
Therefore, the drawer supported by the slide device can be slightly lifted within the range of play between the rails in the state of being accommodated in the box.
[0005]
For example, in a cabinet with a plurality of drawers, when pulling out a drawer at a low position, the user often pulls the drawer out with a slight lift, so that this drawer and the drawer directly above it come into contact with each other. There is a risk of making an unpleasant sound or damaging the drawer.
[0006]
The cabinet with a lock is provided with an elevating rod that can be moved up and down by the key operation of the cylinder lock on the inner surface of the box, and a pin is protruded from either the elevating rod or the side surface of the drawer. In addition, there is one provided with a locking piece that becomes level with the pin by the vertical movement of the elevating rod so as to prevent 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 be released, which is uneasy in terms of safety.
[0008]
The present invention has been made in view of the above-described problems of the prior art, and reliably prevents the drawer from being lifted when the drawer is closed in a drawer device such as a cabinet. Accordingly, an object of the present invention is to provide a drawer support device that solves the above-described problems.
[0009]
[Means for Solving the Problems]
According to the present invention, in the drawer support device with a lock, the lock is released when the drawer is pulled forward while lifting the drawer in the locked state. When the drawer is closed, a fixed rail facing the front-rear direction is provided with an outward projection that is superposed directly below the inwardly protruding piece projecting on the inner surface of the box body to prevent the drawer from lifting up , and is fixed to the inner surface of the box body In addition, the movable rail attached to the side surface of the drawer is slidably fitted with the intermediate rail interposed therebetween so that the drawer can be inserted and removed freely, and the inward piece is provided on the fixed rail .
[0010]
[Action]
When the drawer is housed in the box, the inward piece provided on the box blocks the upper side of the protrusion provided on the drawer. Therefore, even if it is attempted to lift the drawer, the inward piece and the protrusion are engaged with each other. Is prevented from rising.
[0011]
【Example】
DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment in which the present invention is applied to a cabinet with a lock provided with a function of preventing simultaneous withdrawal of a plurality of drawers will be described below with reference to the accompanying drawings.
[0012]
FIG. 1 is a front view of a cabinet. In the box (1), three upper and lower drawers (2) are accommodated.
[0013]
FIG.2 and FIG.3 has shown the thing of the right side of drawer | drawer (2) among the slide apparatuses (3) for taking in / out drawer | drawer (2) out of a box (1).
[0014]
The slide device (3) includes a fixed rail (4), an intermediate rail (5), and a movable rail (6).
[0015]
The fixed rail (4) has a U-shaped cross section in which inwardly facing pieces (4b) and (4c) are connected to the upper and lower edges of the base piece (4a) facing vertically.
[0016]
A pair of upper and lower downward L-shaped locking pieces (4d) and (4d) cut and raised outward from the appropriate position of the base piece (4a) of the fixed rail (4) The fixed rail (4) is fixed to the side plate (7) by engaging with the lower edge of the engagement holes (8), (8) formed in the inner surface plate (7a) of the side plate (7) having the heavy wall structure. It is fixed horizontally on the inner surface in the front-rear direction.
[0017]
The intermediate rail (5) has a U-shaped cross section in which the inwardly facing pieces (5b) and (5c) are connected to the upper and lower edges of the base piece (5a) that faces in the up-down direction. ) (5c) and the inwardly facing pieces (4b) (4c) above the fixed rail (4) are fitted in the fixed rail (4) with steel balls (9) interposed therebetween, respectively. .
[0018]
The movable rail (6) has an outward U-shaped cross-section in which the outwardly facing pieces (6b) and (6c) are connected to the upper and lower edges of the base piece (6a) facing upward and downward. and 6c), between the upper and lower inward piece of the intermediate rail (5) (5b) (5c), respectively by interposing a steel ball (10) is fitted to the intermediate rail (5) within.
[0019]
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. The engaging piece (6d) is formed in the lower part of the outward U-shaped bulging portion (11a) formed at the main point of the holding plate (11) fixed to the side plate (2a) of the drawer (2). The drawer (2) is supported by the movable rail (6) by fitting into the joint hole (12).
[0020]
When the drawer (12) is closed, the side plate (2a) of the drawer ( 2 ) at the upper front end of the holding plate (11) overlaps directly below the front end of the inward piece (4b) above the fixed rail (4). Thus, an outward projection (11b) that prevents the drawer (2) from being lifted is continuously provided.
[0021]
Next, with reference to FIGS. 4 to 7, the simultaneous drawer preventing mechanism and the lock mechanism of the drawer (2) will be described.
A pin (20) protrudes from the outer surface (only the right one is shown) of both side plates (2a) of each drawer (2).
[0022]
A long concave groove (21) is formed in the front part of the inner surface of the inner surface plate (7a) of the side plate (7) of the box body (1), and in the concave groove (21), A lifting rod (22) slightly shorter than the height of the box (1) is fitted so as to be movable up and down. (23) is a pair of upper and lower support plates for preventing the elevating rod (22) from falling off the concave groove (21), and is fixed to the side plate (7) so as to straddle the concave groove (21). Yes.
[0023]
A known catch (24) is provided between the lower end of the lifting rod (22) and the lower support plate (23).
[0024]
The catch (24) is fixed to the lower surface of the rhombus protrusion (25) projecting from the lower inner surface of the lifting rod (22) and the lower support plate (23), and the lifting rod (22) is illustrated in FIG. And a pair of elastic gripping pieces (26) made of a leaf spring material that grips the protrusion (25) when held up to the position shown in FIG. ing.
[0025]
The board (28) of the locking means (27) is fixed to a portion of the right lifting / lowering rod (22) that is substantially level with each pin (20).
[0026]
Downward mountain-shaped push-up protrusions (29) are connected to the upper inner side surface of the substrate (28), and upward downward mountain-shaped push-down protrusions (30) are connected to the lower part of the inner surface, and both protrusions (29) (30 ) Is formed with an inclined groove (31) facing the front lower side through which the pin (20) can be inserted forward and backward. The rear end surface of the pressing protrusion (30) forms a vertical stopper surface (30a).
[0027]
At the position corresponding to each drawer (2) on the inner side surface of the left lifting / lowering rod (22), only the same pressing projection (30) as above is fixed.
[0028]
As shown in FIG. 7, the upper end portions of the lift rod (22) engaging holes (32) are puncture set, the Ryokakarigoana (32) is disposed above the box (1) A suspension support piece (33a) extending in the left-right direction from the front end of the locking bar (33) is fitted so as to be slightly movable in the up-down direction.
[0029]
A horizontal oblong hole (34) is drilled in the center of the front end face of the locking bar (33), and a pair of left and right oblong holes (35) (the right one is shown) Abbreviated).
[0030]
A hook (37) connected to the rising portion of the L-shaped support piece (36) that forms a part of the upper collar of the box (1) is detachably engaged with the horizontally elongated hole (35) from below. The locking bar (33) is configured such that the front end portion thereof can be slightly rotated in the vertical direction around the engaging portion with the hook (37).
An operating pin (39) protruding from the rear eccentric position of the cylinder lock (38) fitted on the upper collar is engaged with the horizontally elongated hole (34) at the center of the front part.
[0031]
In the above-mentioned apparatus, as shown in FIG. 4, when the full drawer (2) is pushed in and the cylinder lock (38) is unlocked, both the lifting rods (22) are located at the lower limit due to their own weight, At that time, the rear end of the inclined groove (31) of each locking means (27) is located immediately before the pin (20) of each drawer (2).
Therefore, each drawer (2) can be pulled out freely, and the elastic grip piece (26) and the protrusion (25) of the catch (24) are separated vertically.
[0032]
As shown in FIG. 5, for example, when the middle drawer (2) is pulled out, the right pin (20) is pushed up by the push-up protrusion (31) when passing through the inclined groove (31) of the middle locking means (27). 29) is pushed up to raise all the locking means (27) together with the right elevating rod (22), and the protrusion (25) rising together is fitted into the elastic gripping piece (26) and elastically engaged. .
[0033]
Therefore, even after passing the pin (20), the right lifting rod (22) does not descend, the other pin (20) is located immediately below the stopper (29a) of the pressing projection (29), The upper and lower drawers (2) cannot be pulled out because their pins (20) are blocked forward by the pressing projections (29).
[0034]
At this time, the left elevating rod (22) remains at the lower limit and does not hinder the movement of the left pin (20).
[0035]
When the middle drawer (2) is pushed in in the above-described state, the right pin (20) is pushed down when it passes through the inclined groove (31) of the middle locking means (27) from the front. 30) is pushed down, the lifting rod (22) is also lowered, and the protrusion (25) of the catch (24) is forcibly separated from the elastic gripping piece (26), and the right lifting rod (22) ) Is further lowered slightly by its own weight, and the state shown in FIG. 4 is obtained, and the entire drawer (2) can be pulled out.
[0036]
In the state shown in FIG. 4, when the cylinder lock (38) is locked, the operation pin (39) that rotates eccentrically rotates the front portion of the locking bar (33) upward, and the suspension support piece (33a). As shown in FIG. 6, the two lifting rods (22) suspended on the shaft are slightly raised together with the locking means (27), and the upper portions of the stoppers (30a) of the pressing projections (30) are connected to the respective pins. Since the front of (20) is blocked, all drawers (2) are locked so that they cannot be pulled out.
[0037]
At this time, the lifting / lowering rods (22) do not rise as much as the above-mentioned simultaneous pulling prevention, so the catch (24) is not engaged. Therefore, when the cylinder lock (38) is unlocked, the lifting / lowering rod (22) is lowered to the state shown in FIG. 4 by its own weight and unlocked, so that the unlocking / unlocking operation is easy.
[0038]
In a cabinet provided with such a simultaneous drawer preventing mechanism and lock mechanism, an appropriate interval is provided between the upper and lower sides of each drawer (2), and each rail (4) (6) ( 8) Since there is some play between each other, conventionally, the drawer (2) is lifted and the pin (20) is moved upward from the stopper surface (33a) of the pressing projection (30). The drawer (2) was able to be pulled out.
[0039]
However, in the present embodiment, when the drawer (2) is lifted upward, as described above, the outward projection (11b) of the holding plate (11) is moved to the inward piece (4b) above the fixed rail (4). Since the drawer (2) is prevented from being lifted by contact with the lower surface of the pin, the pin (20) does not move upward from the stopper surface (30a), and the drawer (2) is not pulled out.
[0040]
For example, when the user pulls out the lowermost drawer (2), even if the drawer (2) is lifted upward and pulled forward, the drawer (2) does not float up. ) And the drawer (2) immediately above it are in contact with each other, and there is no possibility of making an unpleasant sound or damaging both.
[0041]
Further, the drawer (2) is locked to the movable rail (6) by engaging the engagement hole (12) of the holding plate (11) with the upward locking piece (6d) of the movable rail (6). If the drawer (2) is lifted, the engagement hole (12) and the locking piece (6d) may be disengaged. However, according to this embodiment, the drawer (2) When housed in the box (1), the outward projection (11b) is superposed on the inward piece (4b) of the fixed rail (4), so there is no such fear.
[0042]
In the above-described embodiment, only the right lifting rod (22) is provided with the locking means (27) having the simultaneous drawer preventing function and the locking / unlocking function, and the left lifting rod (22) is locked. The pressing projection (30) having only the function is provided, but the left lifting / lowering rod (22) is also provided with the locking means (27), and the left lifting / lowering rod (22) and the left side plate (2a) A catch (24) may be provided between the drawers (2) and the drawer (2) may be able to exhibit a simultaneous drawer preventing function.
[0043]
Conversely, the left lifting / lowering rod (22) may be omitted, and only the right lifting / lowering rod (22) may perform the simultaneous drawer preventing function and the locking function.
[0044]
Further, the pin (20) may protrude from the elevating rod (22), and the locking means (27) may be provided on the drawer (2) side. In this case, in order to achieve the same operation mode as in the above-described embodiment, the locking means (27) may be attached to the side surface of the drawer (2) so as to face upside down.
[0045]
【The invention's effect】
According to the present invention, the following effects can be achieved.
(a) Even if the user lifts the drawer and tries to pull it out, the drawer does not lift up, so this drawer comes into contact with, for example, the drawer in the upper stage and makes an unpleasant sound, It will not hurt .
[0046]
(b) In the locked state of the drawer, the drawer will not be drawn accidentally or intentionally, and it will be effective for security .
[0047]
[Brief description of the drawings]
FIG. 1 is a front view of a cabinet provided with a first embodiment of the present invention.
FIG. 2 is a partially broken enlarged perspective view of the main part.
FIG. 3 is an enlarged longitudinal sectional front view of the main part of the same.
FIG. 4 is a schematic longitudinal side view of the cabinet when unlocked.
FIG. 5 is a schematic longitudinal side view when the middle drawer is similarly pulled out from the state of FIG. 4;
FIG. 6 is a schematic longitudinal sectional side view when the cabinet is similarly locked.
FIG. 7 is a partially broken perspective view of the lock portion.
[Explanation of symbols]
(1) Box
(2) Drawer
(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 plate
(8) Engagement hole
(9) (10) Steel balls
(11) Retaining plate
(11a) bulge
(11b) Outward projection
(12) Engagement hole
(20) Pin
(21) Groove
(22) Lifting rod
(23) Support plate
(24) Catch
(25) Projection
(26) Elastic gripping piece
(27) Locking means
(28) Board
(29) Push-up projection
(30) Pushing projection
(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) Actuation pin

Claims (1)

In the locked state, when the drawer is lifted and pulled forward, the lock is released, and the drawer can be pulled out.
On the side of the drawer, when the drawer is closed, an outward projection that is superposed directly below the inwardly protruding piece projecting on the inner surface of the box to prevent the drawer from lifting , and fixed to the inner surface of the box The movable rail attached to the side of the drawer is slidably fitted to the fixed rail that faces the middle, and the drawer is inserted and removed freely, and the inward piece is provided on the fixed rail. Drawer support device characterized .

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