EP1621706B1 - Locking device for a drawer cabinet - Google Patents

Description

The invention relates to a drawer cabinet, a drawer cabinet or similar device. Such cabinets are known. They contain at least one extract, which is designed for example as an open frame and in which a suitcase can be used. When fully pulled out the suitcase can then be removed. Also known are extracts that have compartmentalizations, so that the items are taken directly from the extract.

Drawer cabinets of this type are often used in motor vehicles to provide a fitter all the necessary tools available.

There is already a drawer cabinet with several drawers known ( US 6347848 ), in which at the back of the pull-outs a closing hook is attached, with one behind the rear edge of the pull-outs arranged locking device cooperates in the form of a striking plate.

Also known is a locking mechanism for drawers ( EP 911467 ), in which are welded to the drawers closing hook into which a pivotally mounted locking plate can engage.

The invention is based on the object to provide a simply constructed drawer cabinet of this type, in which the extract or the extracts can be locked in the closed state.

To solve this problem, the invention proposes a drawer cabinet with the features mentioned in claim 1. Further developments of the invention are the subject of dependent claims.

The drawer according to the invention thus contains a cabinet body, which may be either a cabinet with closed walls, floor and top, or even only a scaffold in which the at least one extract is supported. In the area of the back of this cabinet body, a locking device is arranged, which cooperates with the extracts in such a way that the extract can be locked in its retracted position. The lock is operated from the front of the cabinet. The actuating device is provided so that the user can decide whether he wants to lock the extracts or not.

The arrangement of the locking device in the region of the back of the cabinet body has the advantage that it is not visible from the front so that it does not interfere with the arrangement and the appearance of the cabinet. The cooperating with the extracts locking device can be arranged on one of the two sides be, also on both sides, of the cabinet.

In particular, it can be provided that the locking device acts on the rear side of the drawer or a plurality of slides.

According to the invention can be provided in a development of the invention that in several statements the locking device is designed for simultaneous locking of all extracts.

For actuating the locking device, which is usefully done from the front, any means may be provided, such as a lever, a knob or the like. It is particularly favorable, however, if the locking device is actuated by a lock. Then, a closure can take place simultaneously with the actuation of the locking device.

According to the invention is provided in a further development of the invention that the locking device comprises a strike plate which defines the at least one extract in a locking position and releases in a release position. The actuator may be configured to move the striker between the two positions.

In particular, it can be provided that the striking plate is vertically movable, that is, in a direction transverse to the plane of the extracts. Thus, the strike plate can contribute to the locking of all statements.

In a further development of the invention can be provided that the at least one extract has a latching device, which the Excerpt locked in the closed position. This latching device may be provided additionally or alternatively to the locking device.

In particular, the locking device may have a lever with a run-on slope, which cooperates with a design on the side wall of the cabinet body, in particular with a projection on the fixed extension rail for the extract. This projection may be formed as a sheet metal bend.

In order to ensure a secure engagement even under difficult conditions, the lever can be acted upon by a spring in the locking position according to the invention.

For the locking device is proposed in a further development to install a lever on both sides of the drawer.

The two levers can then be interconnected by a handle bar on the front of the drawer.

Figur 1

eine Darstellung der wesentlichen Teile des Schrankkorpus eines Auszugsschranks nach der Erfindung;

Figur 2

in vergrößertem Maßstab von der Seite her den rückwärtigen Bereich eines Auszugs;

Figur 3

die Stirnansicht eines Schließblechs;

Figur 4

die Draufsicht auf das Schließblech der Figur 3;

Figur 5

in vergrößertem Maßstab einen Teilschnitt durch das Schließblech;

Figur 6

in vergrößertem Maßstab einen Teilschnitt durch das Schließblech aus einer anderen Richtung als in Figur 5;

Figur 7

in abgebrochener Darstellung den Rand der Rückwand;

Figur 8

schematisch eine Ecke im rückwärtigen Bereich des Schrankkorpus;

Figur 9

schematisch die gegenseitige Position von Schließblech und Haken an der Rückseite von Auszügen;

Figur 10

eine schematische Darstellung eines Teils der Rasteinrichtung;

Figur 11

eine Frontansicht einer Auszugsschiene als Teil der Rasteinrichtung;

Figur 12

perspektivisch das Zusammenwirken des Schließblechs mit einem Verriegelungshaken.

Further features, details and advantages of the invention will become apparent from the claims, the following description of a preferred embodiment of the invention and from the drawing. Hereby show:

FIG. 1

a representation of the essential parts of the cabinet body of a drawer according to the invention;

FIG. 2

in an enlarged scale from the side the rear portion of an extract;

FIG. 3

the front view of a striking plate;

FIG. 4

the top view of the strike plate of FIG. 3 ;

FIG. 5

on an enlarged scale, a partial section through the strike plate;

FIG. 6

on a larger scale, a partial section through the strike plate from a different direction than in FIG. 5 ;

FIG. 7

in aborted representation the edge of the rear wall;

FIG. 8

schematically a corner in the rear region of the cabinet body;

FIG. 9

schematically the mutual position of strike plate and hook on the back of extracts;

FIG. 10

a schematic representation of a portion of the latching device;

FIG. 11

a front view of a pull-out rail as part of the latching device;

FIG. 12

in perspective, the interaction of the striking plate with a locking hook.

FIG. 1 shows an overview of the structure of the cabinet body. The cabinet body includes two mirror-image side walls 1, 2 and a rear wall 3. The top is formed by a front frame 4 and a rear sheet metal part 5, the bottom also of a front frame 6 and a rear frame 7. All these parts are made Sheet produced by punching and folded after punching. They are then assembled and linked together.

In the area of the rear right corner, a vertically oriented strike plate 8 is arranged. This striking plate 8 has on its front side a plurality of stacked rectangular openings 9, whose longitudinal direction is parallel to the longitudinal direction of the striking plate. At the upper end of the strike plate 10 is formed with a notch 11 which extends horizontally.

With the strike plate hooks 12 cooperate, of which FIG. 1 a hook 12 shows. This hook 12 is attached in the example shown at the rear end of a portion of a drawer rail 13 which is connected to an extract. The excerpts are in FIG. 1 not shown. The dimension of the hook 12 in the vertical direction is slightly smaller than the corresponding dimension of the opening 9, so that the hook 12 can be inserted into the opening 9. The hook opening is formed on the underside of the hook 12.

The front upper cross frame 4 includes an elongate opening 14 through which a rod 15 can be actuated. The rod 15 has a front end 16 and a cranked rear end 17. The rear end 17 is designed to engage in the notch 11 of the insert 10 of the striking plate 8. A rotation of the rod 15 by engaging at its front end 16 leads to a pivoting of the cranked rear end 17 and thus to a vertical movement of the striking plate 8. The manner in which the striking plate 8 is guided vertically movable, is given below.

To rotate the rod 15 is a rotary lock, which is screwed into the opening 14. Such rotary locks are known per se, so that they are not explained in detail.

FIG. 2 shows on an enlarged scale the rear end of a portion of the pull-out rail 13. The hook 12 protrudes slightly beyond the rear end of the pull-out rail 13 and thus the drawer addition. It contains on its underside an opening 18, the mouth of which is chamfered on both sides. In the illustrated example, such a hook 12 is provided for each extract, which is attached for example to the right rear side of the drawer. It could also be attached to the left side, possibly also on both sides.

FIG. 3 now shows the strike plate from the front on a larger scale. How to already the FIG. 1 can take, the strike plate is formed bent to improve its stability and to make it possible that through the openings 9, the hooks 12 can reach through.

The dimensions of the openings 9 in the striking plate 8 in the vertical direction and in the transverse direction correspond to the size of the hooks 12. The openings 9 are mounted in a grid which corresponds to the distance of the separations from each other. In other words, a hook 12 engage each opening in an opening 9.

At the in FIG. 3 right side and the strike plate are arranged one above the other three guide lugs 19 are formed, which allow the vertical movement of the striking plate 8. The in FIG. 3 left edge flange 20 serves to rest and thus to guide the striker plate 8 on the rear wall.

The cross-sectional shape of the striking plate 8 results from the FIG. 4 showing a top view of the strike plate. The in FIG. 4 down, that is forward cranked part 21 includes the openings 9. The left flange 20 is used to rest on the rear wall. Of the perpendicular to the flange 20 extending flange 22 serves to rest on an angled portion of the rear wall. At this flange 22, three guide projections 19 are formed. The projection 10 with the notch 11 is present above the flange 22.

FIG. 5 shows a partial section through a projection 19 as part of the flange 22. The projection 19 is pressed out during punching. The cross section in a direction perpendicular thereto shows the FIG. 6 , It can be seen here that the projection 19 is cut in on both sides, so that the standing bridge 23 is narrower in its dimension than the width of the projection 19.

FIG. 7 shows the right edge of serving for the production of the rear wall 3 sheet. This sheet, which is made by punching, contains in a line parallel to the right side edge 3 openings 24 in the form of a keyhole. These openings are dimensioned so that the projections 19 can be inserted through the larger part of the openings 24 and then moved downwards. The width of the narrower part of the keyhole openings 24 corresponds to the width of the web 23, while the dimension of the larger part of the keyhole openings 24 corresponds to the wider parts of the projection 19.

The sheet metal of the rear wall 3 is twice bent so that the shape of the FIG. 8 arises. The section 25 with the keyhole openings 24 thus extends parallel to the side wall, so that the flange 22 of the striking plate comes to rest on this surface and is simultaneously guided by the guides 19. The striking plate 8 rests in this way with its leg 22 on the bent portion of the rear wall 3 and with its legs 20 on the rear wall 3 in the non-bent portion.

The two pull-out rails have different lengths. The drawer rail 3 assigned to the drawer has the closing hook 12 in its end area. Since this pull-out rail 13 does not reach all the way to the end of the drawer, the rear edge of the closing hook 12 can extend approximately flush with the rear of the drawer. Since the openings 9 are arranged in a kind of bead of the striking plate 8, the extract can be pushed up almost to the rear wall 3 in this way. Nevertheless, a lock is possible. The available space is thus optimally utilized in this way.

FIG. 9 shows a schematic representation of the assignment of the positions of the hooks 12 on the back of the extracts to the openings 9 of the striking plate 8 in the locking position. In the locking position, the striking plate 8 is pushed so far up that the lower edges of the openings 9 are above the lower edges of the hooks 12, just before the upper edge of the openings 18 at the bottom of the hook 12. The release position is achieved in that the striking plate 8 is made of the in FIG. 9 shown locking position is pushed down until the upper and lower edges of the openings 9 above or below the respective hooks 12 are arranged. In this position, the hooks 12 can be inserted into the openings 9 and pulled out.

FIG. 10 now shows a side view of the front portion of a pull-out rail 13. At this pull-out rail, which is associated with the extract, a lever 27 is pivoted about an axis 26 pivotally. This lever includes a bend 28 which is angled forward with respect to the plane of the drawing. At the bottom of the bend 28 a run-on slope 29 is formed, which drops in this position forward and downward. The lever is acted upon by a spring in this position. The lever is in the area of its front from the extract outstanding end connected to a perpendicular to the paper plane handle bar, which is connected to the other side of the drawer with a mirror-image formed second lever.

On the drawer rail 29 assigned to the cabinet body, see FIG. 11 , a flap 30 is bent inwards. If the extract is pushed back, so the flap 30 engages the run-on slope 29 and raises the lever 27 against the action of the spring and gravity. After passing the tab 30, the lever 27 is moved back into the illustrated latching position. Then, the leading edge of the bend 28 abuts the back of the flap 30, so that the extract is locked. To pull it out, the user must engage the lever 27 and pivot it upwards. For this he attacks best on the handle bar, which connects the two levers 27 together.

FIG. 12 shows a perspective view of the assignment between the locking hook 12 at the end of the pull-out rail 13 and the striking plate 8. In the illustrated position of the locking hook 12 is aligned with an opening 9 of the striking plate 8. The extract can now be pushed all the way back, see also FIG. 8 , Then, by turning the rod 15, the striking plate 8 can be pushed upwards, so that the lower edge of the hole 9 engages in the notch 18 on the underside of the hook 12. Thus the extract is locked. The position of the striking plate 8 opposite the extracts, as shown in FIG. 12 is shown, of course, corresponds to the position in which the extracts can be pulled out.

Claims (11)

1. Drawer cabinet, having

   1.1 a cabinet body,

   1.2 at least one drawer, and

   1.3 a locking device

   1.3.1 designed for locking of the drawer in its closed position,

   1.3.2 arranged on the rear of the cabinet body,

   1.3.3 operable from the front of the cabinet body and

   1.3.4 having a closing plate (8) which fixes the drawer in a locked position and releases it in a release position,

   characterized in that

   1.4 the locking device interacting with the drawers is arranged on one or both sides of the cabinet,

   1.5 the drawers are assigned drawer rails (13), which

   1.6 are attached to one side of the drawers,

   1.7 do not extend to the end of the drawers and

   1.8 have closing hooks (12) arranged in their end area which

   1.9 interact with openings (9) in a kind of bead on the closing plate (8) for locking.
2. Drawer cabinet according to Claim 1, in which the locking device engages the rear of the drawer.
3. Drawer cabinet according to Claim 1 or 2, in which in the case of several drawers the locking device is designed for simultaneous locking of all drawers.
4. Drawer cabinet according to one of the preceding claims, in which a lock, in particular a twist lock, is provided for operating the locking device.
5. Drawer cabinet according to one of the preceding claims, in which the operating device is designed for moving the closing plate (8) between the two positions.
6. Drawer cabinet according to one of the preceding claims, in which the closing plate (8) is designed to be vertically movable.
7. Drawer cabinet according to one of the preceding claims, having a detent device for engaging the device in the closed position.
8. Drawer cabinet according to Claim 7, in which the detent device has a lever (27) with a bevelled contact surface (29) interacting with a tab (30) on the fixed drawer rail associated with the cabinet body.
9. Drawer cabinet according to Claim 8, in which the lever (27) is forced by a spring into the engaged position.
10. Drawer cabinet according to one of Claims 7 to 9, in which the detent device has one lever (27) on each side of the drawer.
11. Drawer cabinet according to Claim 10, in which the two levers (27) are connected to one another by a groove handle on the front of the drawer.

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