JP3425650B2 - Multi-stage drawer cabinet fall protection device - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an anti-tilt device for a multi-stage drawer cabinet.

[0002]

The principle of a conventional this type Bo倒device, FIG. 4
Shown in. In FIG. 4, a slide cam (04) is fixed to the front side surface of the drawer (03) housed in the cabinet (02) of the cabinet (01), and the cabinet (0
The inner surface of 2), said response follows the horizontal movement of the slide cam (04), the lifting rod having a mosquito <br/> Muforowa (06) which is to be moved in the vertical direction (07) is It is supported.

In the state shown in FIG. 4, when the drawer (03) is pulled out forward, the slide cam (04) is moved to guide the cam follower (06) mounted on the lifting rod (07) into the cam groove (05). rose Te, As a result, the lift rod (07) pin which is fixed on the end of (08) is fitted trapped in the housing (02) retainer mounted on top of the (09), drawers Unless the (03) is pushed back to return to the retracted position, the lifting rod (07) is held in the raised position by the elasticity of the holder (09) . Therefore, the drawer (03) in the storage position of the other stage cannot be pulled out because the cam follower (06) in the raised position U prevents the slide cam (04) from moving forward.

[0004] drawer having been pulled out of (03) back to the storage position within the housing (02), cam follower cam groove (05) was in the upper temperature position U (06) is forced to return to the original position because allowed to, the lift rod (07) is lowered, all of the drawer (03) becomes the state that pulled out. Top pin (08) is also disengaged from the retainer (09).

[0005] Thus, unless of return to the storage position an extraction was drawer (03), Do can be drawn other drawer (03)
So it has, it is possible to prevent accidents such as such a device can be seen in the multi-stage drawer cabinet that is not equipped with, ahead of schedule and tilted forward due to the movement of the center of gravity that occurs in order to drawn a lot of drawer at a time.

However, the lifting rod, the conventional multi-stage drawer cabinets to hold the raised position by the holder using elastic in Bo倒apparatus, repeated drawer drawers and storage and that by the <br/> holder of decrease in elasticity, due to a decrease in the holding force caused by wear of the retainer will not be able to hold the lifting rod, Bo倒function loss
There is a risk that

[0007] In addition, if too strong a holding force in order to prevent it, now it takes a large force at the time of closing the drawer, and in that time, Ru mower possible to generate the unpleasant sound. Furthermore, when pulling out the drawer, because its degree lifting rod in each will be held in the raised position, is intact, it is not possible to pull out the other drawer, in each case, it is lowered lifting rod by hand Banara stomach.

In short, the disadvantage of this conventional device is that the slide cam fixed to the side surface of the drawer is involved only during the ascending movement of the elevating rod and when the elevating rod starts to descend. This is because it depends on the holder on the housing side. Therefore, even after pulling out the drawer, lift rod is I raised position near, this subsequent withdrawal is prevented
And

[0009]

[0008] The present invention, various shortcomings in <br/> conventional multistage drawer cabinet Bo倒device such as this,
That is, reduction in the elasticity of the retainer, a reduction in the holding force caused by wear of the retainer, the loss of it by Bo倒function, a large force is required when closing the drawer, the generation of unpleasant noise, a risk of malfunction or the like The purpose is to obtain a multi-stage drawer cabinet defeat device that completely removes.

[0010]

According to the present invention, the above problems can be solved as follows. (1) The side surfaces of a plurality of drawers in the same cabinet are each provided with an inclined surface extending from the front end portion to the upper rear side and a horizontal surface extending to the rear end of the drawer continuously from the rear end thereof. An engaging / disengaging member that fixes a slide cam that moves in the horizontal direction and that is equipped with a cam follower that can be raised by the forward movement of the slide cam to the position corresponding to each slide cam on the inner surface of the cabinet housing. It is provided so that it can move up and down, and the front upper part of each slide cam
The sloped piece parallel to the sloped surface and the front end of the sloped piece.
Installed, and corresponding cam follower when the engaging / disengaging member rises
And a rear end portion of a leaf spring including an upright piece facing each other.
Fixed, and the engaging / disengaging member rises to prevent it from being pulled out.
It has to be prevented from moving to the front of the drawer.

(2) In the above item (1), the slide cam is provided with a front member having an inclined surface and an elongated member having a horizontal surface having a front end portion connected to the front member.

[0012]

[Action] pulled out only by the own weight of the slide cam workings and disengaged member attached to the drawer, other drawer movements in the same cabinet is blocked.

[0013]

1 is a perspective view showing the appearance of a multi-stage drawer cabinet (1) according to an embodiment of the present invention. Housing (2)
The multiple drawers (3) are housed in the
A slide cam (4) is fixed to at least one side surface of (3).

FIG. 2 is a side view of the drawer (3). drawer
3 members (4a) lined up in front and back over the entire length of the side surface of (3 )
The slide cam (4) consisting of (4b) and (4c) is fixed.
Front member of the slide cam (4) (4a) are horizontal guide surface (11)
And an inclined surface (12) which is continuous from the rear end and rises rearward, and a horizontal surface (13) which continues to the rear end.

Inclined piece (14a) substantially parallel to the inclined surface (12)
The rear end of the leaf spring (14) having the front of the slide cam (4)
It is fixed to the rear portion of the member (4a), and a rising portion (15) bent in a substantially L shape is formed at the front end of the leaf spring (14) . Therefore, between the inclined surface (12) and leaf spring (14),
A flexible cam groove (16) is formed .

The intermediate member of the slide cam (4) (4b) is made of metal withdrawal material or sheet metal of U-shaped cross-section, having a horizontal surface (17a) of equal height and the water <br/> plane (13) Linear cam groove
Is equipped with a (17).

The member after the slide cam (4) (4c) has a lower water <br/> plane (18), inclined surface downwardly inclined after the subsequent (19) and a, and a lower horizontal surface (18) A cam groove (21) above
An upper horizontal piece (20) is provided therethrough .

The ends of the front and rear of the intermediate member (4b), the horizontal plane
And (17a), it is coupled to the front and rear members (4a) the horizontal plane of the (4c) (13) (18 ) and are made to be contour, the front member (4a) and the rear member (4c). Thus, continuous horizontal planes (13) (17a) (18)
Is designed to extend from near the front end to near the rear end of the drawer (3).

On the other hand, at the front end of the inner surface of the housing (2) of the cabinet (1), the cam groove (1
6) (17) (21) cam follower to be fitted into (22) in the vertical direction are arranged in a row in the mounting elongated disengaging member (23) are movably supported in the vertical direction.

Therefore, the drawer (3) can be pulled out or pulled in.
When worn, the cam follower (22) will slide into the slide cam (4).
Following this , it moves almost vertically. Also, the drawer (3)
When drawing the can, the own weight of the disengagement member including several cam followers (22) (23), via an inclined surface (12), so acts as a rearward force, there is some response. This is effective in preventing the drawer from escaping due to an earthquake or the like.

When all the drawers (3) are stored in the housing (2), the cam followers (22) fixed in a vertical row on the engaging / disengaging member (23) are shown in FIGS. It is in the basic position shown in phantom. That cam follower (22), Ru junction der between the inclined surface horizontal surface (11) (12) is located at the entrance to the cam groove (16).

In this state , pulling the drawer (3) forward,
The cam follower (22) corresponding to the drawer (3) gradually rises, and then the cam groove of the intermediate member (4b) of the slide cam (4).
Lead to (17). Cam follower at this time (22)
Is in the highest in the vertical movement range of itself.

At this time, the cam follower (22) is at the highest position in the vertical movement range even in the other drawer (3) which is not pulled out, but the drawer (3) is not moving forward, so that place Rises at.

[0024] At this time, as can be deduced from Figure 2, the cam follower (22), since pressing the upright piece of the leaf spring (14) and (15) from the front, even attempt to get the drawer (3), draw I can't do that.

In order to completely pull out the drawer (3) that has been pulled out from the housing (2), if it is further pulled out, it will come off from the housing (2). Immediately before it comes off, when the inclined surface (19) of the rear member (4c) of the slide cam (4) reaches the position of the cam follower (22), the engagement / disengagement member (23) including several cam followers (22) moves. by its own weight, it lowered to the lowest position in the vertical movement range.

Therefore, the drawer (3) can be drawn out next time. Further, when the drawn drawer (3) is once again stored in the housing (2), the self-weight of the engagement / disengagement member (23) including the cam follower (22), which has been at the lowest position, changes from the slope (1).
It is felt as a response through 9).

Further, it is possible to pull out the plurality of drawers (3) only when the plurality of drawers (3) are drawn out at the same time completely.

[0028] Thus, when a plurality of drawers (3) is drawn out, when the pushing of one drawer of which (3), the drawer (3) slide cam (4) which is fixed to Since the leaf spring (14) bends upward and avoids the cam follower (22), it does not destroy the slide cam (4) or the cam follower (22) of the other drawer (3) that has been pulled out.

[0029]

According to a first aspect of the present invention according to the present invention, only by the own weight of the work disengageably member of the slide cam attached to the drawn drawer and preventing other movements of the drawer in the same cabinet since it, together with the number of parts can be reduced, Ru during withdrawal of the drawer is Oh, the other drawers are staying in the storage position, the purpose of Bo倒is reliably achieved.

[0030] Also, the Oh Ru drawer after you have completely withdrawn,
Other drawers can be pulled out without any hindrance and without any special operation. Furthermore, when any one of the drawers is pulled out, at least one cam follower is located on the horizontal plane of the slide cam and its lowering is prevented, so that the engaging / disengaging member does not drop unnecessarily and the error is prevented. There is little risk of operation.

For example, when a plurality of drawers are pulled out at the same time and then only one of the drawers is closed, a cam follower corresponding to the drawer slides on the leaf spring and elastically deforms the leaf spring, so that the slide cam and the cam follower move. It is possible to prevent damage.

[0032] All the Ru good to the second aspect of the invention, the front member all common, and the length of the intermediate member, or appropriately selecting suit the depth or the like of the cabinet, or by cutting, the front member Commonly, it can be widely applied to various cabinets having different depth dimensions.

[Brief description of drawings]

FIG. 1 is a perspective view of a multi-tier cabinet equipped with an embodiment of the present invention.

FIG. 2 is also an enlarged side view of the main part.

FIG. 3 is also an enlarged perspective view of a main part.

FIG. 4 is a schematic side view of a main part of a conventional anti-tilt device for a multi-tier cabinet.

[Explanation of symbols]

(1) Multi-stage drawer cabinet (2) Housing (3) Drawer (4) Slide cam (4a) Front member (4b) Intermediate member (4c) Rear member (11) Guide surface (12) Inclined surface (13) Horizontal surface (14 ) Leaf spring (14a) Inclined piece (15) Standing piece (16) Cam groove (17) Cam groove (17a) Horizontal surface (18) Lower horizontal surface (19) Inclined surface (20) Horizontal surface (21) Cam groove (22) Cam follower (23) Engagement member

Claims (2)

(57) [Claims] 1. A plurality of drawers in the same cabinet are provided on their side surfaces with an inclined surface extending rearward and upward from a front end portion, and a horizontal surface extending to the rear end of the drawer continuously from the rear end thereof. A slide cam that moves horizontally as it opens and closes is fixed, and a cam follower is attached to the inside surface of the cabinet housing so that it can be raised by moving the slide cam forward to a position corresponding to each slide cam. provided member vertically movably, further of each slide cam
An inclined piece that is parallel to the inclined surface and a front end
Cams that are connected to the section and that correspond when the engaging / disengaging member rises.
Of a leaf spring including a follower and a standing piece that is made to face each other.
Fix the rear end and pull out by raising the engaging / disengaging member.
An anti-tilt device for a multi-tiered drawer cabinet, which is characterized in that it prevents the drawers that are not installed from moving forward . 2. The multi-tier drawer cabinet according to claim 1, wherein the slide cam comprises a front member having an inclined surface and an intermediate member having a horizontal surface connecting the front end portion to the front member. Anti-falling device.