JP2692489B2 - Auxiliary table top connecting structure - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an auxiliary top plate connecting structure for a desk which is preferably used in an office or the like.

[0002]

2. Description of the Related Art Desks used in recent offices and the like are required to be highly functional in all aspects. As part of this, there are not a few that are equipped with a function that allows an auxiliary top plate to be easily attached to the top plate in order to expand the top plate surface from the beginning. In this case, the auxiliary top plate is sometimes a cantilever-supported dedicated auxiliary top plate with only one or two ground parts, or another normal desk top plate with four ground parts. There will be. In such an auxiliary top plate connecting structure, it is generally known that the side end surface of the top plate and the lower surface of the auxiliary top plate are preliminarily provided with screw holes for mounting metal fittings. That is, in this product, the vertical plate part of the L-shaped metal fitting is fixed to the screw hole of the top plate by using a bolt, and the auxiliary top plate is mounted on the upper surface of the horizontal plate part extending outward from the metal fitting. Then, the bolts inserted from the lower surface of the horizontal plate portion are fixed to the screw holes provided on the lower surface of the auxiliary top plate to complete the connection of the auxiliary top plate to the top plate.

[0003]

However, according to such an auxiliary top plate connecting structure, when the desk is used alone, the screw holes are exposed at the side end surfaces of the top plate, which is unsightly. In this case, it is possible to attach small parts such as resin caps to the screw holes, but this kind of small parts is easy to lose and troublesome to handle, so it will be used properly for a long time. I can't expect that. Further, according to such a connecting structure, at least two bolts must be fastened to each metal fitting, so that there is a disadvantage that the whole mounting work becomes complicated. Furthermore, if the auxiliary top plate is a cantilever-supported dedicated auxiliary top plate, part of the load applied to the auxiliary top plate acts as a concentrated load on the side end surface of the top plate through the metal fittings, so it is necessary for the side end surface. There is a drawback that the above strength is required.

An object of the present invention is to provide an auxiliary top plate connecting structure for a desk which can effectively solve these problems.

[0005]

In order to achieve the above object, the present invention employs the following configuration.

That is, the desk top connecting structure of the desk according to the present invention is provided with a slit in the desk having a desk and a side plate, the coupling board is inserted through the slit, and the desk is mounted at the tip thereof. It is designed to be attached. The side plate is joined to the lower surface side of the left and right end surfaces of the top plate, and the slit is formed at the boundary between the side end surface of the top plate and the outer surface of the side plate, and is horizontal in the thickness direction of the side plate. To the inner side surface side of the side plate, the connecting plate has a vertical flange portion larger than the slit at the base end, and the tip is inserted into the slit from the inner side surface side of the side plate. It has a longitudinal dimension that allows it to extend to the outer surface side of the side plate. Then, the connecting plate is inserted into the slit so that the vertical flange portion is attached to the inner side surface of the side plate of the desk, and in this state, the auxiliary top plate is placed on the upper surface on the tip side of the connecting plate, and the lower surface of the connecting plate is attached. The auxiliary top plate is connected to the top plate by fixing the fastening tool inserted from the side to the lower surface of the auxiliary top plate.

In order to properly attach the connecting plate, the width dimension of which is increased in a taper shape from the distal end to the base end, and the thickness dimension of which is increased in a taper shape from the tip end to the base end. Those that have been made effective. In that case, it is convenient to change the thickness by utilizing the inclination of the ribs formed on the upper surface or the lower surface of the connecting plate.

As one embodiment of the slit, the lower surface of the top plate and the upper end surface of the side plate are joined through a joint material,
The slit is formed at a position where the joint material is partially removed.

[0009]

In such an auxiliary top plate connecting structure, at the time of connecting work, first, the tip of the connecting plate is inserted into the slit from the inner side surface side of the side plate of the desk and extended to the outer side surface side at the same time. The vertical collar portion of the connecting plate is attached to the inner surface of the side plate, and in that state, the auxiliary top plate is placed on the upper surface of the tip side of the connecting plate.
When the fastening tool inserted from the lower surface side to the connecting plate is fastened to the lower surface of the auxiliary top plate, the side plate and the auxiliary top plate are pulled together via the vertical collar portion at the time of fastening, and after fastening, the top plate and the auxiliary The side edges of the top plate are brought into close contact with each other, and the auxiliary top plate will not be separated from the top plate of the desk unless the connecting plate is removed. For this reason,
Even if there is only one fastener, the auxiliary top plate can be securely attached to the desk top plate. In this case, even if the auxiliary top plate is cantilevered, a part of the load is dispersed and supported on the inner wall of the slit of the desk, the inner side surface of the side plate, the side end surface of the top plate, and the like. Therefore, unlike the conventional case, the concentrated load is not applied only to the side end surface of the top plate.

On the other hand, at the time of work for releasing the connected state, the stopper is removed from the lower surface of the auxiliary top plate, the auxiliary top plate is separated from the top plate of the desk, and then the connecting plate is pulled out from the slit. It can be used independently. In this state, however, a slit opens at the boundary between the side end surface of the top plate and the outer surface of the side plate, but since there are joints and the like at this boundary part, it is more visible than conventional screw holes. Therefore, it is possible to reduce the necessity of mounting small parts such as a resin cap.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS.

A desk A to which this auxiliary top plate connecting structure is applied
As shown in FIG. 1, includes a top plate 1, side plates 2, and slits 6. Then, the auxiliary top plate B is attached to the desk A by using the connecting plate 4.

As shown in FIG. 2, the desk A has a structure in which a top plate 1 and a side plate 2 which are separate bodies are strongly connected by an appropriate means. The top plate 1 is called a flash structure. The pipe member 11 is joined in a frame shape, and a honeycomb-shaped paper core 12 is arranged on the inner periphery of the top member 1, and both upper and lower surfaces of the pipe member 11 and the paper core 12 are arranged. Steel plate 13 is attached to each of them via an adhesive agent, and these pipe members 11 and paper core 12 are bonded by pressure bonding.
The steel plate 13 is joined. A melamine decorative plate 14 is further adhered to the upper surface of the steel plate 13 on the upper surface side, and a soft edge member 15 is adhered to the side end surface of the pipe member 11.

The side plate 2 has an upward opening type outer channel member 21 rigidly attached to the upper ends of the legs 5, and the outer channel member 21.
An upward opening-shaped inner channel member 22 fitted by spot welding to the inner circumference of the inner peripheral surface of each of the two, and a downward U-shaped composite member fitted on the upper edges of the channel members 21, 22 along the longitudinal direction thereof. It is provided with a joint material 23 made of resin and a half-divided cover body 24 attached to the outer channel material 21 from the left and right via ribs (not shown). Both channel materials 21,
Notches 25 are formed in the upper edge of 22 and the joint material 23 by partially cutting out the vicinity of the rear end of the desk A shown in FIG. 2 and the vicinity of the front end (not shown).

Then, the top plate 1 is placed on the joint material 23 of the side plate 2, and the top plate 1 and the side plate 2 are strengthened at a position (not shown) via a taper engaging portion and a claw-shaped engaging portion. It is connected.

At the boundary portion between the side end surface 1a of the top plate 1 of the desk A and the outer side surface 2a of the side plate 2 thus joined, a joint 23a having the joint material 23 as the joint bottom is formed. A slit 6 for communicating the space on the inner side surface 2b side of the side plate 2 and the space on the outer side surface 2a side is opened at a portion of the joint 23a corresponding to the cutout portion 25.
In this embodiment, the connecting plate 4 is inserted from the space on the inner surface 2b side of the side plate 2 into the slit 6 as shown in FIGS. 7 to 9, and the tip 4a thereof extended to the outer surface 2a side. As shown in FIG. 10, an auxiliary top plate B is attached.

As shown in FIGS. 3 to 6, the connecting plate 4 has a longitudinal dimension set to be approximately twice the dimension between the outer side surface 2a and the inner side surface 2b of the side plate 2, and the transverse section thereof is the slit. 6 has a vertical flange portion 41 that is substantially corresponding to the opening shape of the slit 6 and is larger than the opening area of the slit 6 on the side of the base end 4b, and has three ribs 4 on the lower surface of the flat plate portion 4c.
2 and 43 are projected by press molding. These ribs 42, 43 are slightly inclined in the longitudinal direction, and the apparent thickness dimension between the projecting lower end and the upper surface of the flat plate portion 4c is directed from the tip 4a side of the connecting plate 4 to the base end 4b side. And gradually increases in a tapered shape. Specifically, the base end 4
The thickness dimension d ₂ in the vicinity of b is set to be about 10% larger than the thickness dimension d _{1 in the} vicinity of the tip 4a. The d ₂ is made to correspond approximately to the opening length of the slit 6. Further, the width dimension of the connecting plate 4 is also gradually increased in a taper shape from the front end 4a side of the connecting plate 4 toward the base end 4b side. Specifically, the width dimension w ₂ near the base end 4b is set to be, for example, about 10% larger than the width dimension w ₁ near the tip end 4a. The w ₂ is made to correspond approximately to the opening width of the slit 6. Further, a bolt insertion hole 44 penetrating in the thickness direction is formed in the flat plate portion 4c on the tip 4a side of the connecting plate 4.

As shown in FIG. 10, the auxiliary top plate B is made by attaching decorative plates 101 to the upper and lower surfaces of a core material 100, and soft edge members 102 on the peripheral edges thereof. An insert nut 103 is embedded in the lower surface at a position that is inward from the inside by a predetermined distance.

Next, the procedure for attaching the auxiliary top plate B in this embodiment will be described with reference to FIGS. First, the tip end 4a of the connecting plate 4 is inserted into the slit 6 from the inner side surface 2b side of the side plate 2 of the desk A and extended to the outer side surface 2a side, and at the same time, the vertical flange portion 41 of the connecting plate 4 is moved to the side plate 2 side. Inner surface 2b of
To be attached to. At this time, since the connecting plate 4 is tapered in the width direction and the thickness direction, it is easy to insert and the inner plate of the slit 6 is closely fitted and positioned at the insertion position. Next, the auxiliary top plate B is placed on the upper surface of the connecting plate 4 on the tip 4a side, and the bolt insertion hole 44 of the connecting plate 4 is placed.
The bolt 7, which is a fastener inserted through the lower surface side, is fastened to the lower surface of the auxiliary top plate B. At the time of fastening, the side plate 2 and the auxiliary top plate B are pulled together via the vertical collar portion 41, and after the fastening, the desk A
The side end faces 1a and 102a of the top plate 1 and the auxiliary top plate B are brought into close contact with each other, and the auxiliary top plate B is prevented from being separated from the top plate 1 of the desk A unless the connecting plate 4 is removed. For this reason,
Even if the fastener is a single bolt as in this embodiment, the auxiliary top plate B can be reliably attached to the top plate 1 of the desk A. In addition, in this embodiment, the auxiliary top plate B is shown in FIGS.
As shown in FIG. 1, it is a cantilever support consisting of only two legs 104, but a part of the load is the slit 6 of the desk A.
Since it is dispersed and supported on the inner wall of the top plate, the inner side surface 2b of the side plate 2, the side end face 1a of the top plate 1, etc., the concentrated load does not reach only the side end face 1a of the top plate 1 as in the conventional case.

On the other hand, when the connection state is released, the bolt 7 is unscrewed from the lower surface of the auxiliary top plate B, the auxiliary top plate B is separated from the top plate 1 of the desk A, and then the connecting plate 4 is slit 6. When it is pulled out from the desk, the desk A can be used again by itself. Then, in this state, the slit 6 is opened at the boundary portion between the side end surface 1a of the top plate 1 and the outer side surface 2a of the side plate 2.
Since it is present on the 3a, it is not as conspicuous as the conventional screw hole, and therefore the necessity of mounting small parts such as a resin cap is reduced.

The present invention is not limited to the above-mentioned embodiments. For example, in the above embodiment, the connecting plate 4
Is attached to the side surface of the cover body 24 of the side plate 2, but may be attached directly to the outer channel member 21 without using the cover body 24. In addition, although the auxiliary top plate B has two legs 104 in the above-mentioned embodiment, one having only one leg 104 as shown in FIG. 12 or one having a grounding structure other than that. May be Further, the ribs 42 and 43 of the above embodiment are not an essential requirement of the present invention. However, the provision of such ribs is effective because the thickness can be easily changed and a sheet metal having a normal thickness can be used to secure the strength in the longitudinal direction. Furthermore, although the connecting plate is fastened with only one bolt in the above embodiment, the use of two or more bolts is not hindered. Even in that case, considering that the same number of bolts are fixed to both ends as in the conventional case, the number of bolts can be reduced by half and the number of mounting steps can be reduced. In addition, the shapes and structures of the side plates, the connecting plates, the slits, and the like can be variously modified without departing from the spirit of the present invention.

[0022]

The auxiliary top plate mounting structure for a desk according to the present invention is
As explained above, the auxiliary top plate is placed on the tip of the connecting plate inserted from the inner side surface side of the desk through the slit,
Since the work is completed simply by fastening the fastening tool inserted from the lower surface to the connecting plate to the lower surface of the auxiliary top plate, the mounting location of the fastening tool and the mounting man-hour will be halved compared to the conventional one. Even if the auxiliary top plate is cantilevered, its load is dispersed and supported on the inner wall of the slit, the inner surface of the side plate, the side end faces of the top plate, etc. The inconvenience of exerting a concentrated load on the end surface can be eliminated, and further,
The slit is opened at the boundary between the side end surface of the top plate and the outer side surface of the side plate, and it is absorbed in part of the joint in appearance, so it does not spoil the appearance unlike conventional screw holes, such as resin caps. It is possible to obtain the effect that the use of is unnecessary.

[Brief description of the drawings]

FIG. 1 is a perspective view of a desk and an auxiliary top plate before connection, showing an embodiment of the present invention.

FIG. 2 is a partially cutaway perspective view showing the desk of the embodiment.

FIG. 3 is a perspective view showing a connecting plate of the embodiment.

FIG. 4 is a plan view of the same.

FIG. 5 is a left side view of FIG. 4;

6 is a sectional view taken along line VI-VI in FIG.

FIG. 7 is a perspective view showing the connecting procedure of the embodiment from the inner surface side of the side plate.

FIG. 8 is a partially cutaway enlarged perspective view showing the connecting procedure of the embodiment along the line VIII-VIII in FIG. 1.

FIG. 9 is an enlarged perspective view, partly broken, showing the connecting procedure of the embodiment along the line IX-IX in FIG. 1.

FIG. 10 is a partial cross-sectional view taken along the longitudinal direction of the connecting plate showing the auxiliary top plate connected together in the embodiment together with the top plate of the desk.

FIG. 11 is a plan view of the same.

FIG. 12 is a view corresponding to FIG. 11 showing another embodiment of the present invention.

[Explanation of symbols]

 A ... Desk B ... Auxiliary top plate 1 ... Top plate 1a ... Side end surface 2 ... Side plate 2a ... Outer side surface 2b ... Inner side surface 4 ... Connecting plate 4a ... Tip 4b ... Base end 6 ... Slit 7 ... Fastener (bolt) 23 ... Joint material 41 ... Vertical collar parts 42, 43 ... Ribs

Claims (5)

(57) [Claims] 1. An auxiliary top plate connecting structure for a desk, wherein a slit is provided on a desk having a top plate and side plates, and a connecting plate is inserted into the slit and an auxiliary top plate is attached to the tip thereof. The side plate is joined to the lower surface side of the left and right end surfaces of the top plate, and the slit is formed at the boundary between the side end surface of the top plate and the outer surface of the side plate. It extends horizontally to the inner side surface of the side plate, and the connecting plate has a vertical collar portion larger than the slit at the base end, and the tip is inserted into the slit from the inner side surface side of the side plate. And has a longitudinal dimension that can be extended to the outer surface side of the side plate, the connecting plate is inserted into the slit, the vertical collar portion is attached to the inner surface of the side plate of the desk, in that state An auxiliary top plate is placed on the top surface of the connecting plate at the tip side, and is fastened by inserting it into the connecting plate from the bottom side. An auxiliary top plate connecting structure for a desk, characterized in that the auxiliary top plate is connected to the top plate by fixing a tool to the lower surface of the auxiliary top plate. 2. The width dimension of the connecting plate is increased in a taper shape from the front end toward the base end.
Auxiliary top plate connection structure of the desk described. 3. The auxiliary top plate connecting structure for a desk according to claim 1, wherein the thickness of the connecting plate is increased in a taper shape from the front end toward the base end. 4. The auxiliary top plate connecting structure for a desk according to claim 3, wherein the change in thickness is provided by utilizing the inclination of ribs formed on the upper surface or the lower surface of the connecting plate. 5. The lower surface of the top plate and the upper end surface of the side plate are joined via a joint material, and a slit is formed at a position where the joint material is partially cut off. Auxiliary top plate connection structure of the desk.