JP3472423B2 - Desk top plate mounting structure - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a top plate mounting structure for a desk, and more particularly, to a top plate that can be firmly attached by engaging the top plate with one touch on the upper end surfaces of sleeves or legs. Regarding top plate mounting structure.

[0002]

2. Description of the Related Art In a conventional steel desk, a structure for attaching a top plate to a sleeve portion is disclosed in Japanese Utility Model Publication No. 58-46674. In the mounting structure described in this publication, an engaging groove is formed in a side surface portion of a rear reinforcing member of a top plate, an engaging hole serving as a dharma hole is formed in a front reinforcing member, and a rearward facing engagement member is provided on a rear rail of a sleeve portion. At the same time as forming an engaging claw, fixing a headed engagement projection to the front rail, and simultaneously locking the engagement claw in the engagement groove at the rear part while sliding the top plate forward with respect to the sleeve part, The front surface of the projection of the detent member, which is elastically urged upward on the front rail of the sleeve at this time, engages the engagement projection in the front portion with the rear surface of the front reinforcement member of the top plate. By doing so, the engagement state between the sleeve portion and the top plate is maintained.

In connecting the sleeve and the top plate,
All positions of the engaging groove and the engaging claw, the engaging hole and the engaging protrusion must be accurately determined at the same time with the top plate being substantially horizontal with respect to the upper surface of the sleeve portion, and the positioning work is troublesome. There was such a problem. Further, since the engaging claws, the engaging projections, and the projections of the detent member project from the upper surface of the sleeve portion, there is a risk that these projections may be deformed or damaged during packaging and transportation of the sleeve portion. Further, although there is an advantage that a tool is not required in the assembling process, three types of engaging members or processing such as an engaging groove and an engaging claw, an engaging hole and an engaging protrusion, and a detent member are required. Since the positional relationship of must be formed with high accuracy, it does not contribute much to cost reduction.

When the sleeve and the top plate are separated,
With the drawer of the sleeve removed, you must slide your tabletop backward while inserting your hand inside the sleeve and pushing in the protrusion of the detent member that protrudes to the inside of the tabletop. Not only was the work troublesome, but there was the danger of pinching your fingers.

[0005]

SUMMARY OF THE INVENTION In view of the above-mentioned situation, the present invention is to solve the problem that before the assembling work,
There are no protrusions on the upper end surface of the sleeve or leg and the lower surface of the top plate, and the top plate can be easily and firmly attached to the upper end surface of the sleeve or leg with one touch, and the sleeve and leg The point is to provide a desk top plate mounting structure that does not require removal of the drawer in the work of separating the sleeve part and the tabletop from each other by making the structure common to the section and the structure.

[0006]

In order to solve the above-mentioned problems, the present invention forms a locking edge whose front is open at the rear of the upper end surface of a sleeve or leg, and laterally behind the top plate. Engagement claw that extends forward from the main body of the locking metal fitting and is attached to the locking hole provided in the reinforcing member by engaging the front hook of the locking metal fitting from the rear side and protruding rearward from the rear end of the top plate . While slidably inserting the locking edge from the front from the front,
A desk top plate mounting structure is constructed in which a front end portion of the upper end surface of the sleeve portion or the leg portion and a reinforcing member laterally provided in front of the top plate are engaged with each other by a fitting made of synthetic resin .

Further, a horizontal locking hole extending in the depth direction and a vertical locking hole extending in the vertical direction are provided side by side on the lower surface of the reinforcing member on the rear side of the top plate, and the cross section of the locking metal fitting is substantially the same. It is preferable that two U-shaped body side plates be provided with two pairs of frontward hooks that engage with the horizontal engaging hole and the vertical engaging hole, respectively, and that the rearward extending portion of the main body serves as the engaging claw.

Further, the engaging member is made of synthetic resin and integrally formed, and is formed on one of the front end of the upper end surface of the sleeve or leg and one of the reinforcing members provided in front of the top plate. In addition to having a headed pin that fits and locks in the dharma hole, a main body part that engages with the tapered hole formed on the other side, and an elastic claw that elastically projects from the main body part and retains and engages with the hole edge of the tapered hole. It is more preferable that it has.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, embodiments of the present invention will be described in more detail with reference to the accompanying drawings. 1 is an overall perspective view of a desk according to the present invention, FIG. 2 is a bottom view of a top plate, FIGS. 3 to 11 are attachment structures of a top plate and sleeves, and FIGS. 12 to 16 are top plates and legs. In the figure, 1 is a top plate, 2 is a sleeve part, 3 is a leg part,
Reference numeral 4 is a curtain plate, 5 is a locking metal fitting, and 6 is a fastening tool.

In the desk according to the present invention, the top plate 1 is connected to the sleeve portion 2 and the rear end surface of the leg portion 3 by the curtain plate 4, and the sleeve portion 2 is
The structure is such that a plurality of locking metal fittings 5 and engaging members 6 are easily attached to the upper end surface of the leg portion 3 with one touch. Here, the mounting structure of the top plate 1 and the sleeve part 2 and the mounting structure of the top plate 1 and the leg part 3 have the same basic structure, and the same locking metal fitting 5 and the same attachment It attaches similarly using the tool 6.

First, the mounting structure of the top plate 1 and the sleeve portion 2 will be described with reference to FIGS. First, the top plate 1 has a reinforcing member 7 laterally provided at the rear edge of the lower surface thereof, a reinforcing member 8 laterally at the front edge thereof, and two reinforcing members 9, 9 at the intermediate portion in the depth direction. Is installed horizontally. In addition, in order to clarify the positional relationship of each reinforcing member, "rear", "front", and "middle" are added for distinction. There are right-sleeve type, left-sleeve type and double-sleeve type desks. The top plate 1 has a symmetrical structure so that the sleeve portion 2 can be attached to the top plate 1 on either side. There is. On the lower surface of the top plate 1, the locking metal fittings 5 are provided.
Also, the fastening tool 6 can be attached in a temporarily fixed state.

The rear reinforcing member 7 of the top plate 1 has a lower surface 7A.
A horizontal locking hole 10 extending in the depth direction and a vertical locking hole 11 extending in the vertical direction on the rear surface 7B, respectively, and these locking holes form a set and both ends of the top plate 1 and It is provided in two places in the inner middle part. Then, a dullama hole 12 consisting of a large diameter portion 12A and a small diameter portion 12B is formed in a concave groove 8A formed in the longitudinal direction of the lower surface of the front reinforcing member 8, and the dulla hole 12 is formed in the longitudinal direction of the front reinforcing member 8. Two parts are provided on both sides with a predetermined interval. In addition, in order to connect legs 3 to be described later, a similar dharma hole 12 is formed at an end of a groove 9A formed in the longitudinal direction of the lower surface of the middle reinforcing member 9.

On the upper end surface of the sleeve portion 2, a rear crosspiece 13 is provided laterally on the rear edge portion and a front edge portion on the front edge portion in order to reinforce the sleeve portion 2 and attach it to the top plate 1. A front cross rail 14 is provided horizontally. Then, an insertion hole 15 is formed in the rear horizontal rail 13 at a position substantially corresponding to the set horizontal locking hole 10 and vertical locking hole 11, and the rear edge of the insertion hole 15 is used as a locking edge. 1
6 is said. On the other hand, the front cross rail 14 is formed with tapered holes 17 depressed downward at positions corresponding to the dharma holes 12, 12 formed in the front reinforcing member 8.
The lower end of the tapered hole 17 penetrates vertically, and the periphery thereof is a hole edge 17A.

The locking fittings 5 are two pairs of plates which are respectively locked to the horizontal locking holes 10 and 10 and the vertical locking holes 11 and 11 on both side plates 18A and 18A of the main body 18 having a substantially U-shaped cross section. The forward facing hooks 19 and 20 are formed, and the rearward extending portion of the main body 18 serves as an engaging claw 21 that engages with the engaging edge 16 (see FIGS. 8 and 9).

The engaging member 6 is made of synthetic resin and integrally molded, and is a head which is fitted and locked in the dullama hole 12 formed in the concave groove 8A of the front reinforcing member 8 of the top plate 1. A main body portion 23 which has a pin 22 and is engaged with a tapered hole 17 formed in the front cross rail 14 of the sleeve portion 2 and a hole edge 17A of the tapered hole 17 which elastically projects from the main body portion 23.
It has an elastic claw 24 that engages with the retainer (FIG. 1).
0 and FIG. 11). The basic structure of this fastening device 6 itself is
Although a metal product has already been provided, since it has a large number of parts and is costly, an integrally molded product made of a high-strength synthetic resin such as polycarbonate was used in the present invention.

Therefore, in order to attach the top plate 1 to the sleeve portion 2 by using the locking metal fittings 5 and the engaging members 6, first, as shown in FIG. 4, it is formed on the rear reinforcing member 7 of the top plate 1. Insert the forward hooks 20 and 20 into the vertical locking holes 11 and 11 while inserting the tips of the forward hooks 19 and 19 of the locking metal fitting 5 into the horizontal locking holes 10 and 10 so that they will not move further forward. Securely engage until. Next, as shown in FIG. 5, the headed pin 22 of the engaging member 6 is inserted from the large diameter portion 12A of the dharma hole 12 formed in the front reinforcing member 8 of the top plate 1 and slid sideways to move the head. The attached pin 22 is locked to the small diameter portion 12B. Then, as shown in FIG. 3, the main body 18 of the locking fitting 5 is inserted into the insertion hole 15 with the rear portion of the top plate 1 being lowered.
The rear end of the top plate extending rearward from the main body 18 while being inserted into
After engaging the engaging claw 21 protruding rearward with respect to the engaging edge 16 by slidably inserting the engaging claw 21, the front portion of the top plate 1 is pushed down, and the main body portion 23 of the engaging device 6 is sleeved. The elastic claw 24 is engaged with the hole edge 17A of the taper hole 17 by retaining it by falling into the taper hole 17 of the portion 2 and engaging the work (see FIGS. 7 and 8).

When the top plate 1 and the sleeve portion 2 are separated from each other, if the uppermost drawer (not shown) of the sleeve portion 2 is pulled out, as shown in FIG. Since the elastic claws 24 are easily accessible within the upper stile part of the sleeve part 2, the elastic claws 24 of the fastening device 6 are deformed toward the main body part 23 side, and the front part of the top plate 1 is deformed. If you lift up, the fastener 6 will come out of the tapered hole 17, and if you pull the top plate 1 toward you,
The locking metal piece 5 disengages from the locking edge 16 and easily comes off.

Next, the mounting structure of the top plate 1 and the leg portions 3 will be described with reference to FIGS. The leg portion 3 is a leg plate 3
The grounding leg 3B extending forward is fixed to the lower end of A, and the supporting rod 3C extending forward is fixed to the upper end of the leg plate 3A. The supporting rod 3C has a substantially U-shaped cross section and both upper edges thereof are formed. The reinforcing pieces 25, 25 are formed by bending inward. The rear fixing plate 26 and the front fixing plate 2 are provided at the rear end portion and the front portion of the supporting rod 3C at the portions where the reinforcing pieces 25 are cut out.
7, and the front edge of the rear fixing plate 26 is fixed to the locking edge 16
The front fixing plate 27 is formed with a taper hole 29 similar to the taper hole 17 as described above.

In order to attach the top plate 1 to the legs 3, the locking metal fittings 5 are attached to the horizontal locking holes 10 and the vertical locking holes 11 formed in the rear reinforcing member 7 of the top plate 1 as described above. In the state where the front hooks 19 and 20 are engaged and attached, and the headed pin 22 of the engaging member 6 is fitted and locked in the dullama hole 12 formed in the concave groove 9A of the front middle reinforcing member 9, The engaging claw 21 of the engaging metal fitting 5 is slidably inserted into the engaging edge 28 from an oblique front side and engaged, and the main body portion 23 of the engaging member 6 is engaged.
Is engaged by being dropped into the tapered hole 29, and the elastic claw 24 is retained and engaged with the hole edge 29A.

In order to separate the top plate 1 and the leg portion 3, it is necessary to provide an opening for inserting a tool for pushing the elastic claw 24 into the main body portion 23 on the side surface of the support rod 3C. . Since other configurations are the same as those described above, the same components are designated by the same reference numerals and the description thereof will be omitted.

[0021]

According to the top plate mounting structure for a desk of the present invention as described above, the locking metal fitting is engaged with the rear part of the top plate and the engaging member made of synthetic resin is engaged with the front part. In this state, it extends rearward from the body of the locking bracket and projects rearward beyond the rear end of the top plate.
After the engaging claws are slidably inserted into the locking edges provided at the rear of the sleeves or legs from the diagonally front side, and then the front part of the top plate is pushed down, so that the fastening device is attached to the sleeves or legs. The top plate can be easily and firmly attached to the sleeve part or the leg part by one-touch simply by dropping and engaging the front part of the. Further, the sleeve part and the leg part have a common mounting structure and use common parts, so that the structure can be simplified and the cost can be reduced. Further, in the work of separating the sleeve portion and the top plate, it is not necessary to remove the drawer as in the conventional case, and the separation can be easily performed. Further, before the assembling work, since there are no protrusions on the upper end surfaces of the sleeves or legs and the lower surface of the top plate, there is no possibility that the mounting structure portion is deformed or damaged during packaging or transportation.

[Brief description of drawings]

FIG. 1 is an overall perspective view of a desk according to the present invention.

FIG. 2 is a bottom view of the top plate.

FIG. 3 is an exploded perspective view showing a state before the top plate is attached to the sleeve portion.

FIG. 4 is an abbreviated exploded perspective view of the mounting structure in the rear part, which is partially broken.

FIG. 5 is an abbreviated exploded perspective view in which the mounting structure in the front part is also partially broken.

FIG. 6 is a partial cross-sectional view showing a mounting state of the rear portion of the same.

FIG. 7 is a partial cross-sectional view showing a mounting state of the front portion of the same.

FIG. 8 is a view showing a locking fitting, (a) is a rear view seen from the engaging claw side, and (b) is a longitudinal sectional view.

FIG. 9 is an overall perspective view of the locking fitting.

FIG. 10 is an overall perspective view of a fastening device.

FIG. 11 is also a cross-sectional view of the fastening device.

FIG. 12 is an exploded perspective view showing a state before the top plate is attached to the legs.

FIG. 13 is an abbreviated exploded perspective view of the mounting structure in the rear part, which is also partially broken.

FIG. 14 is an abbreviated exploded perspective view in which the mounting structure in the front part is also partially broken.

FIG. 15 is a partial cross-sectional view showing a mounting state of the rear portion of the same.

FIG. 16 is a partial cross-sectional view showing a mounting state of the front portion of the same.

[Explanation of symbols]

1 Top plate 2 Sleeve 3 legs 3A leg plate 3B grounding leg 3C support rod 4 Curtain board 5 Locking metal fitting 6 Clasp 7 Rear reinforcement member 7A Lower surface 7B Rear surface 8 Front reinforcement member 8A concave groove 9 Middle reinforcing member 9A concave groove 10 Horizontal locking hole 11 Vertical locking hole 12 Dharma hole 12A Large diameter part 12B Small diameter part 13 Rear cross rail 14 Front horizontal rail 15 Insertion hole 16 Locking edge 17 Taper hole 17A Hole edge 18 Main body 18A Side plate 19 Forward hook 20 Frontward hook 21 Engaging claw 22 Pin with Head 23 Body 24 Elastic claw 25 Reinforcing piece 26 Rear fixing plate 27 Front fixing plate 28 Locking edge 29 Tapered hole 29A hole edge

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Ken Kagayama               1-4-12 Imafukuhigashi, Joto-ku, Osaka               Ceremony company Itoki Crebio                (56) References JP-A-51-131764 (JP, A)                 Actual Kaihei 7-36767 (JP, U)                 Actual Development Sho 55-132510 (JP, U)                 Actual Development Sho 54-100805 (JP, U)

Claims (3)

(57) [Claims] Claims: 1. A locking edge having an open front is formed at a rear portion of an upper end surface of a sleeve portion or a leg portion, and a locking metal fitting is provided from a rear side in a locking hole provided in a reinforcing member provided on a rear side of a top plate. The engaging hooks are engaged and attached, and engaging claws extending rearward from the main body of the locking metal fitting and projecting rearward from the rear end of the top plate are slidably inserted into the locking edges from the front to lock. At the same time, the front part of the upper end surface of the sleeve or leg and the reinforcing member provided in front of the top plate are engaged with each other by a fitting made of synthetic resin. Board mounting structure. 2. A cross section of the locking metal fitting is formed by arranging a horizontal locking hole extending in a depth direction and a vertical locking hole extending in a vertical direction on a rear surface of the reinforcing member on the lower surface of the rear side of the top plate. 2. The desk according to claim 1, wherein two U-shaped body side plates are provided with two pairs of frontward hooks which are respectively engaged with the horizontal engaging hole and the vertical engaging hole, and the rearward extending portion of the main body is used as the engaging claw. Top plate mounting structure. 3. The fastening member is made of synthetic resin and integrally molded, and is formed on one of a front portion of an upper end surface of the sleeve portion or leg portion and a reinforcing member provided in front of the top plate. In addition to having a headed pin that fits and locks in the dharma hole, a main body part that engages with the tapered hole formed on the other side, and an elastic claw that elastically projects from the main body part and retains and engages with the hole edge of the tapered hole. The top plate mounting structure for a desk according to claim 1 or 2, which has.