JP3591526B2 - Desk top plate mounting structure - Google Patents

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a desk top plate mounting structure, and more particularly, to a desk top plate mounting structure capable of firmly mounting a top plate on the upper end surface of a sleeve or a leg by one-touch engagement.
[0002]
[Prior art]
As a structure of attaching a top plate to a sleeve portion in a conventional steel desk, there is one described 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 engaging member is formed on a rear crosspiece of a sleeve portion. At the same time as forming a dovetail, an engaging projection with a head is fixed to the front rail, and at the rear, the engaging claw is locked in the engaging groove at the rear while sliding the top plate forward with respect to the sleeve. At the front part, the engagement protrusion is engaged with the engagement hole, and at this time, the front surface of the protrusion of the detent member elastically urged upward on the front rail of the sleeve portion contacts the rear surface of the front reinforcement member of the top plate. Thus, the engagement between the sleeve and the top plate is maintained.
[0003]
In this connection work between the sleeve portion and the top plate, the positions of the engagement grooves and the engagement claws and all the positions of the engagement holes and the engagement projections are simultaneously accurate while the top plate is substantially horizontal with respect to the upper surface of the sleeve portion. And the positioning work is troublesome. In addition, since the engaging claws, the engaging protrusions, and the protrusions of the detent members protrude from the upper surface of the sleeve portion, there is a possibility that these protrusions may be deformed or damaged when the sleeve portion is packed or transported. In addition, although there is an advantage that a tool is not necessary 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. Must also be formed with high precision, so that it does not contribute much to cost reduction.
[0004]
Also, when separating the sleeve and the top plate, with the drawer of the sleeve removed, insert the hand into the inside of the sleeve and press the protrusion of the detent member protruding inside the top plate while pressing it. In addition, the top plate must be slid rearward, which is not only troublesome but also involves the danger of pinching a finger.
[0005]
[Problems to be solved by the invention]
In view of the above situation, the present invention seeks to solve the problem that before the assembling operation, there is no protrusion on the upper end surface of the sleeve or the leg and the lower surface of the top plate, and the sleeve or the leg does not exist. The top plate can be easily and firmly attached to the upper end surface with a single touch.The mounting structure is shared between the sleeve and the leg to simplify the structure, and the drawer is used for separating the sleeve from the top plate. Another object of the present invention is to provide a tabletop mounting structure that does not require the user to remove the desk.
[0006]
[Means for Solving the Problems]
SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention forms a locking edge with an open front at a rear portion of an upper end surface of a sleeve or a leg, and a locking member provided on a reinforcing member provided laterally behind a top plate. A front hook of the latch is engaged with the hole from the rear and attached thereto, and an engaging claw extending rearward from the main body of the latch and projecting rearward from the rear end of the top plate is obliquely attached to the latch edge from the front. Attach the top of the desk by slidingly inserting and locking, and dropping and engaging between the front end of the upper end surface of the sleeve or the leg and the reinforcing member laterally provided in front of the top with a fastening tool. Structured.
[0007]
Also, 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 behind the top plate, and a substantially U-shaped cross section of the locking metal is provided. It is preferable to form two pairs of forward-facing hooks that are respectively engaged with the horizontal locking holes and the vertical locking holes on both side plates of the main body, and that a rear extension portion of the main body be the engaging claw.
[0008]
Further, the fastening device is made of a synthetic resin and is integrally formed, and has a daruma hole formed in one of a front end portion of the upper end surface of the sleeve portion or the leg portion and a reinforcing member provided in front of the top plate. It has a headed pin that fits and locks, and has a main body portion that engages with a tapered hole formed on the other side, and an elastic claw that elastically protrudes from the main body portion and engages with the hole edge of the tapered hole so as to prevent and engage. It is more preferable to have them.
[0009]
BEST MODE FOR CARRYING OUT THE INVENTION
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 mounting structures of a top plate and a sleeve, and FIGS. In the drawing, reference numeral 1 denotes a top plate, 2 denotes a sleeve, 3 denotes a leg, 4 denotes a curtain plate, 5 denotes a latch, and 6 denotes an attachment.
[0010]
In the desk according to the present invention, a plurality of locking fittings are provided on the upper end surfaces of the sleeve portion 2 and the leg portion 3 in a state where the top plate 1 is connected between the rear end surfaces of the sleeve portion 2 and the leg portion 3 by the curtain plate 4. 5 and a structure in which it is easily attached with one touch by using an attachment 6. Here, the mounting structure between the top plate 1 and the sleeve portion 2 and the mounting structure between the top plate 1 and the leg portions 3 have the same basic structure, and the same locking metal 5 and the same fastening structure It is attached in the same manner using the tool 6.
[0011]
First, an attachment structure between the top plate 1 and the sleeve 2 will be described with reference to FIGS. First, the top plate 1 has a reinforcing member 7 provided laterally at a rear edge portion of a lower surface thereof, a reinforcing member 8 provided laterally at a front edge portion thereof, and two reinforcing members 9, 9 at an intermediate portion in a depth direction. Is laid horizontally. In addition, in order to clarify the positional relationship between the reinforcing members, they are distinguished by adding “rear”, “front”, and “middle”. 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 2 can be attached to the top plate 1 on either the left or right side. I have. And, on the lower surface of the top plate 1, the locking fitting 5 and the fastening tool 6 can be attached in a temporarily fixed state.
[0012]
The rear reinforcing member 7 of the top plate 1 has a horizontal locking hole 10 extending in the depth direction on the lower surface 7A and a vertical locking hole 11 extending in the vertical direction on the rear surface 7B. As a set, it is provided at two places, both end portions of the top plate 1 and an intermediate portion inside the top portion. A darma hole 12 composed 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 darma hole 12 is formed in the longitudinal direction of the front reinforcing member 8. Two locations are provided on both sides at a predetermined interval. Further, in order to connect a leg 3 described later, a similar darma hole 12 is formed at an end in a concave groove 9A formed in the longitudinal direction on the lower surface of the middle reinforcing member 9.
[0013]
On the upper end surface of the sleeve 2, a rear cross rail 13 is provided laterally at a rear edge for reinforcing the sleeve 2 and attaching to the top plate 1, and a front horizontal rail is provided at a front edge. 14 are installed horizontally. 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. 16 On the other hand, tapered holes 17 which are respectively depressed downward are formed in the front cross beam 14 at positions corresponding to the dharma holes 12, 12 formed in the front reinforcing member 8, and the lower ends of the tapered holes 17 are vertically extended. The hole 17A penetrates the periphery of the hole 17A.
[0014]
The locking fitting 5 has two pairs of forward-facing hooks 19 for locking 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. , 20 and an engaging claw 21 for locking the rear extension of the main body 18 to the locking edge 16 (see FIGS. 8 and 9).
[0015]
The fastening member 6 is made of synthetic resin and is integrally molded, and has a headed pin 22 that fits and locks in a darma hole 12 formed in a concave groove 8A of the front reinforcing member 8 of the top plate 1. And a main body portion 23 which engages with a tapered hole 17 formed in the front horizontal rail 14 of the sleeve portion 2 and an elastically projected from the main body portion 23 to engage with a hole edge 17A of the tapered hole 17 to prevent the main body portion 23 from engaging. It has claws 24 (see FIGS. 10 and 11). Although the basic structure itself of the fastening device 6 is already made of metal, since the number of parts is large and the cost is high, in the present invention, it is integrally formed of a high-strength synthetic resin such as polycarbonate. Was used.
[0016]
Therefore, in order to attach the top plate 1 to the sleeve portion 2 using the locking metal fitting 5 and the fastening tool 6, first, as shown in FIG. The front hooks 20, 20 are inserted into the vertical locking holes 11, 11 while inserting the tips of the front hooks 19, 19 of the locking metal fittings 5 into the holes 10, 10, and securely inserted until they no longer move forward. Engage. Next, as shown in FIG. 5, the headed pin 22 of the attachment 6 is inserted through the large-diameter portion 12A of the darma hole 12 formed in the front reinforcing member 8 of the top plate 1, and is slid to the side to move the head. The attached pin 22 is locked to the small diameter portion 12B. Then, as shown in FIG. 3, in the inclined state with the rear portion of the top plate 1 lowered, the main body 18 of the locking metal fitting 5 extends rearward from the main body 18 while being inserted into the insertion hole 15. After the engaging claw 21 projecting rearward from the end is slid obliquely forward into the locking rim 16 and locked, the front portion of the top plate 1 is pushed down, and the main body 23 of the fastening device 6 is moved down. By dropping and engaging in the tapered hole 17 of the sleeve portion 2, the elastic claw 24 is prevented from engaging with the hole edge 17A of the tapered hole 17 to complete the mounting operation (see FIGS. 7 and 8).
[0017]
When the top plate 1 and the sleeve 2 are separated from each other, the uppermost drawer (not shown) of the sleeve 2 is pulled out, as shown in FIG. Is located at an easily accessible position inside the upper stile portion of the sleeve portion 2, so that the elastic claw 24 of the fastening device 6 is deformed toward the main body portion 23 so that the front portion of the top plate 1 can be lifted. For example, if the fastener 6 comes out of the tapered hole 17 and then the top plate 1 is pulled toward the user, the locking metal 5 comes off the locking edge 16 and easily comes off.
[0018]
Next, the mounting structure of the top plate 1 and the leg 3 will be described with reference to FIGS. The leg portion 3 has a structure in which a ground contact leg 3B extending forward is fixed to a lower end of a leg plate 3A, and a support rod 3C extending forward is fixed to an upper end of the leg plate 3A. The reinforcing pieces 25 are formed by bending both upper edges inward in a letter shape. A rear fixing plate 26 and a front fixing plate 27 are fixed to the rear end and the front of the support rod 3C at a portion where the reinforcing piece 25 is notched, and the front edge of the rear fixing plate 26 is fixed to the front end. A locking edge 28 similar to the retaining edge 16 is provided, and a tapered hole 29 similar to the tapered hole 17 is formed in the front fixing plate 27.
[0019]
In order to attach the top plate 1 to the leg 3, the front hook 19 of the latch 5 is inserted into the horizontal locking hole 10 and the vertical locking hole 11 formed in the rear reinforcing member 7 in the same manner as described above. , 20 are engaged with each other, and the pin 22 with the head of the fastener 6 is fitted and locked in the darma hole 12 formed in the concave groove 9A of the middle reinforcing member 9 on the front side. The engaging claw 21 of FIG. 5 is slid obliquely from the front into the locking rim 28 to be locked, and the main body 23 of the fastener 6 is dropped into the tapered hole 29 to be engaged with the elastic claw 24. The stopper edge engages with the hole edge 29A.
[0020]
In order to separate the top plate 1 and the leg 3, it is necessary to provide an opening for inserting a tool for pushing the elastic claw 24 into the main body 23 on the side surface of the support rod 3 </ b> C. Other configurations are the same as those described above, and thus the same configurations are denoted by the same reference numerals and description thereof will be omitted.
[0021]
【The invention's effect】
According to the desk top plate mounting structure of the present invention configured as described above, the locking fitting is engaged with the rear portion of the top plate, and the main body of the locking fitting is engaged with the fastening device with the front portion. After engaging the engaging claw extending rearward and projecting rearward from the rear end of the top plate to the locking edge provided at the rear of the sleeve or the leg from the diagonally forward side and locking, the front portion of the top plate is locked. The top plate can be easily and firmly attached to the sleeve or the leg with one touch simply by dropping the engaging device into the front of the sleeve or the leg by pressing down. Further, by using a common mounting structure for the sleeve portion and the leg portion and using common components, the structure can be simplified and the cost can be reduced. Further, in the work of separating the sleeve and the top plate, it is not necessary to remove the drawer as in the related art, and the drawer can be easily separated. Further, before the assembling work, since there are no protrusions on the upper end surfaces of the sleeves or the legs and the lower surface of the top plate, there is no risk of deformation or damage to the mounting structure during packing or transport.
[Brief description of the 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 a top plate is attached to a sleeve.
FIG. 4 is an abbreviated exploded perspective view showing the mounting structure at the rear part in a partially broken manner.
FIG. 5 is an abbreviated exploded perspective view showing the mounting structure in the front part in a partially broken manner.
FIG. 6 is a partial sectional view showing a mounting state of the rear part.
FIG. 7 is a partial cross-sectional view showing a mounting state of the front part.
8 (a) is a rear view as viewed from an engaging claw side, and FIG. 8 (b) is a longitudinal sectional view.
FIG. 9 is an overall perspective view of the latch.
FIG. 10 is an overall perspective view of a fastening device.
FIG. 11 is a sectional view of the attachment.
FIG. 12 is an exploded perspective view showing a state before a top plate is attached to a leg.
FIG. 13 is an abbreviated exploded perspective view showing the mounting structure at the rear part in a partially broken manner.
FIG. 14 is an abbreviated exploded perspective view showing the mounting structure in the front part in a partially broken manner.
FIG. 15 is a partial cross-sectional view showing a mounting state of the rear part.
FIG. 16 is a partial cross-sectional view showing a mounting state of the front part.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Top plate 2 Sleeve 3 Leg 3A Leg 3B Grounding leg 3C Supporting rod 4 Curtain plate 5 Locking metal 6 Tether 7 Rear reinforcing member 7A Lower surface 7B Rear surface 8 Front reinforcing member 8A Groove 9 Medium reinforcing member 9A Groove DESCRIPTION OF SYMBOLS 10 Horizontal locking hole 11 Vertical locking hole 12 Dharma hole 12A Large diameter portion 12B Small diameter portion 13 Rear horizontal bar 14 Front horizontal bar 15 Insertion hole 16 Locking edge 17 Tapered hole 17A Hole edge 18 Main body 18A Side plate 19 Forward hook 20 Forward Hook 21 engaging claw 22 headed pin 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

Claims (3)

At the rear of the upper end surface of the sleeve or the leg, a locking edge with an open front is formed, and a frontward hook of a locking fitting is engaged from behind with a locking hole provided in a reinforcing member provided laterally behind the top plate. A locking claw extending rearward from the main body of the locking metal fitting and projecting rearward from a rear end of the top plate, is slidably inserted into the locking edge from a diagonally forward position to lock the sleeve; Alternatively, a top plate mounting structure for a desk, wherein a front end of the upper end surface of the leg portion and a reinforcing member laterally provided in front of the top plate are dropped and engaged with a fastening tool. 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 behind the top plate. 2. A desk top mounting structure according to claim 1, wherein two pairs of forward hooks are formed on the plate to be locked in the horizontal locking hole and the vertical locking hole, respectively, and a rear extension of the main body is used as the engaging claw. The fastening member is made of a synthetic resin and is integrally molded, and is fitted into a darma hole formed in one of a reinforcing member provided in front of the upper end surface of the sleeve or the leg and the front of the top plate. Claims: A headed pin for locking, and a main body portion engaged in a tapered hole formed on the other side, and an elastic claw elastically protruding from the main body portion to engage with a hole edge of the tapered hole so as to prevent and engage therewith. Item 3. A desk top mounting structure according to item 1 or 2.

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