JPH10155551A - Auxiliary top board attaching structure for desk - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an auxiliary top board attaching structure for desk with which an auxiliary top board for placing a keyboard or the like can easily, strongly and attachably/detachably be fitted to the fore edge of top board at irreducibly minimum screwing positions. SOLUTION: In this attaching structure for attaching an auxiliary top board 5 to one part of fore edge of top board 1 for the desk, the fore part of connecting metal fixture 6 is attached to a lower surface 5A of auxiliary top board 5, a backward hook 7 is formed at a rear end part on both the sides of rear part of the connecting metal fixture 6 protruded backward rather than the rear edge of auxiliary top board, and a horizontal fixing board 9 having attaching holes 8 on both the side forward from these hooks is formed. Then, the backward hooks 7 are fitted and locked with lock holes 13, which are formed on a fore surface 12 of inner reinforcing member 11 laterablly attached to the depthwise intermediate part of lower surface of tope board, and both the fixing boards 9 are screwed on a lower surface 15 of fore reinforcing member 14, which is laterally formed at the fore edge of lower surface of top board 1, while using attaching holes 8.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an auxiliary tabletop mounting structure for a desk, and more particularly, to an auxiliary tabletop for mounting an auxiliary table used for placing a keyboard on a front edge of the tabletop. The present invention relates to a top plate mounting structure.

[0002]

2. Description of the Related Art Conventionally, there have been provided various types of auxiliary top plates which can be detachably attached to a front edge of a desk top plate or can be attached by post-processing. As a structure for attaching the auxiliary top plate to the front edge of the top plate, etc., a connecting member is disposed on the lower surface of the top plate and the lower surface of the auxiliary top plate, and the connecting member is screwed to the lower surfaces of the top plate and the auxiliary top plate. Structures are common.

[0003] Further, although not related to a desk, Japanese Utility Model Publication No. 2-40806 discloses a structure in which an auxiliary top plate is connected to a side edge of a main top plate in a table. A plurality of vertically long engagement holes spaced apart from each other are formed in the side surface on the edge side of the recess provided in The bracket is inserted horizontally into the recess of the top plate, engages with the engagement hole, and abuts on the lower edge of the main top plate at the appropriate position behind the engagement piece at the upper edge of the bracket, so that the bracket can be placed horizontally on the main top plate. A structure is disclosed in which the lower surface of the auxiliary top plate whose edge touches the edge of the main top plate is screwed to the other end of the bracket projecting from the edge of the main top plate. .

However, in a structure in which the connecting member is screwed to both the lower surface of the top plate and the lower surface of the auxiliary top plate, there are many screwing points,
The connecting operation is extremely troublesome, and there is a problem in supporting strength. In addition, the structure described in the above-mentioned publication discloses that when a large downward load is applied to the bracket, the engagement piece provided in the recess near the edge of the main top plate and the engagement piece of the bracket at one location. Since it is a combined structure, there is still a problem in strength.

[0005]

SUMMARY OF THE INVENTION In view of the above situation, the present invention is intended to solve the problem by providing an auxiliary top plate for mounting a keyboard or the like on the front edge of the top plate with a minimum necessary number of screws. An object of the present invention is to provide an auxiliary tabletop mounting structure for a desk, which can be easily and firmly detachably mounted at a stop point.

[0006]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention provides a mounting structure for mounting an auxiliary top plate on a part of a front edge of a desk top plate. The rear part of the connection fitting protruding rearward from the rear edge of the auxiliary top plate, forming rearward-facing hooks at the rear ends of both sides, and having mounting holes on both front sides thereof. The rearward hook is fitted and locked in a locking hole formed in the front surface of a middle reinforcing member provided laterally in the middle of the lower surface of the top plate in the depth direction, and the both fixing plates are fixed to the lower surface of the top plate. An auxiliary top plate mounting structure for a desk, which is screwed to the lower surface of the front reinforcing member laterally provided at the front edge of the desk using the mounting hole.

Here, the fixing plate of the connection fitting is formed continuously to the front end, a rearward engaging claw is projected from the front end of the fixing plate, and the engaging claw is fitted to the lower surface of the auxiliary top plate. An engaging hole for locking is formed, an inclined or curved chamfered portion is formed on a front edge of the top plate, and a rear edge of the auxiliary top plate is formed between a top plate and an upper surface of the auxiliary top plate. It is more preferable to provide an edge member adapted to the shape of the chamfered portion so as not to cause a step therebetween.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, embodiments of the present invention will be described in more detail with reference to the accompanying drawings. FIG. 1 is an overall perspective view of a desk in which an auxiliary top plate employing a mounting structure according to the present invention is attached to a front edge of the top plate, and FIGS. 2 to 5 show a typical embodiment of the present invention. Is a top plate, 2 is a sleeve, 3 is a leg, 4 is a curtain, 5
Indicates an auxiliary top plate, and 6 indicates a connection fitting.

In the desk according to the present embodiment, the top plate 1 is
And a rear end surface of the leg portion 3 connected by a curtain plate 4. An auxiliary top plate 5 is provided on the front edge of the top plate 1 on the side opposite to the sleeve portion 2.
Are attached by the connection fitting 6.

According to the present invention, a front portion of a connecting member 6 is attached to a lower surface 5A of the auxiliary top plate 5, and a rear portion of the connecting member 6 protruding rearward from a rear edge of the auxiliary top plate 5, and a rear end on both sides. A horizontal fixing plate 9, 9 having mounting holes 8, 8 is formed on both sides forward of the rearward hooks 7, 7, and the rearward hooks 7, 7 are attached to the lower surface 10 of the top plate 1. Of the middle reinforcing member 11 which is provided in the middle in the depth direction, and is fitted and locked in locking holes 13, 13 formed in the front surface 12 of the middle reinforcing member 11, and the fixing plates 9, 9 are horizontally A screw 1 is formed on the lower surface 15 of the front reinforcing member 14 using the mounting holes 8.
The gist is that they should be fastened at 6,16.

In the first embodiment shown in FIGS.
The fixing plates 9, 9 of the connection fitting 6 are continuously formed up to the front end,
At the front ends of the fixing plates 9, 9, rearward engaging claws 17, 17 are projected, and at the lower surface 5 </ b> A of the auxiliary top plate 5, engaging holes 18, which engage and lock the engaging claws 17, 17, 18 opened,
Furthermore, a chamfered portion 1 inclined or curved above the front edge of the top plate 1
9 is formed, and an edge member 22 adapted to the shape of the chamfered portion 19 so that a step does not occur between the top plate 1 and the upper surfaces 20 and 21 of the auxiliary top plate 5 at the rear edge of the auxiliary top plate 5. Is provided.

More specifically, the connection fitting 6 is formed by bending a steel plate. Side plates 24, 24 are formed on both sides of the connection plate 23 so as to be raised.
The rearward hook 7 protrudes from the upper edge of the rear end of the side plate 4, and the fixing plate 9 is bent outward at a right angle from the upper edge of each side plate 24 on the front side thereof. The mounting hole 8 is formed at the rear of the rear end 9 and the rearward engaging claw 17 is formed by cutting and raising at the front end. In addition, a vertically long locking hole 13 is formed in the front surface 12 of the middle reinforcing member 11, and when the rearward hook 7 is engaged with the locking hole 13, the lower end face of the middle reinforcing member 11 is The dimensions are set so as to contact the upper edge of the face plate 24. On the lower surface 15 of the front reinforcing member 14, through holes or screw holes 25, 25 are formed at positions corresponding to the mounting holes 8, 8, respectively.

In the present embodiment, the auxiliary top plate 5 is made of wood, and has a lower surface 5A formed with a lateral concave groove 26, and a cross section in which the engaging hole 18 is provided in the concave groove 26. Although a substantially U-shaped mounting bracket 27 is embedded, when the auxiliary top plate 5 is made of steel, the engagement hole 18 is formed on the lower surface 5A.
Can also be formed directly on the lower plate constituting the above.

In order to attach the auxiliary top plate 5 to the front edge of the top plate 1 using the connection fitting 6, first, the connection fitting 6
The rearward engaging claws 17, 17 are engaged with the engaging holes 18, 18 formed in the lower surface 5A of the auxiliary top plate 5, and are protruded from the upper rear ends of the side plates 24, 24 of the connection fitting 6. The rearward hooks 7, 7 are respectively engaged from the front with the locking holes 13, 13 of the middle reinforcing member 11 laterally provided on the lower surface 10 of the top plate 1, and the fixing plates 9, 9 are connected to the lower surface of the front edge of the top plate 1. In a state where the edge member 22 abutting on the lower surface 15 of the front reinforcing member 14 laid laterally on the side 10 and attached to the rear end of the auxiliary top plate 5 is joined to the chamfered portion 19 of the top plate 1, the screws 16, 16 To the fixing plate 9,
9 and is screwed into a through hole or a screw hole 25 provided in the lower surface 15 of the front reinforcing member 14.

Here, in the present embodiment, the rearward engaging claws 17 and the engaging holes 18 are provided at right and left portions, respectively. However, if two pairs are provided at the front and rear, mounting can be performed with higher strength. Further, as shown in FIG.
A protruding piece 28 protruding rearward is provided at the rear edge of A, or the protruding piece 28 is formed integrally with the lower edge of the edge member 22, and the auxiliary top plate 5 is in contact with the front edge of the top plate 1. It is also preferable that the protruding piece 28 abuts on the front edge surface of the top plate 1 to prevent the auxiliary top plate 5 from rising when the connection is made. When two pairs of the rearward engaging claws 17 and the engaging holes 18 are provided in the front and rear directions, it is not necessary to provide the protruding piece 28 for preventing lifting.

Next, in the second embodiment shown in FIGS. 7 to 10, instead of the rearward engaging claws 17 and the engaging holes 18, the fixing plate 9 is passed through two front and rear portions of the front portion. Holes 29, 29
And a screw 30 inserted into the through hole 29 from below is screwed into the lower surface 5A of the auxiliary top plate 5. in this case,
Although the number of screwing points is slightly larger than in the first embodiment,
The number of screwed portions can be reduced as compared with the case where all screws are used, and the connection fittings 6 can be securely and loosely attached to the auxiliary top plate 5. Other configurations are the same as those described above, and therefore, the same configurations are denoted by the same reference numerals and description thereof will be omitted.

[0017]

According to the auxiliary top plate mounting structure for a desk of the present invention as described above, the following remarkable effects can be obtained.

According to the first aspect, an auxiliary top plate for mounting a keyboard or the like can be easily and detachably attached to the front edge of the top plate with a minimum necessary screwing portion. In the state of being supported by the connection metal fittings of the top plate, the rear end of the connection metal fitting is locked to the middle reinforcing member, and the fixing plate is screwed to the front reinforcing member sufficiently farther forward, and the connection metal fittings are provided at two front and rear positions. Therefore, the supporting strength of the auxiliary top plate is high.

According to the second aspect, the connection fitting can be extremely easily attached to the lower surface of the auxiliary top plate only by fitting work.

According to the third aspect, even when an inclined or curved chamfer is formed above the front edge of the top plate, a step is prevented from being caused by the edge member provided on the rear edge of the auxiliary top plate. This prevents dust and dirt from accumulating in the gaps and prevents documents from being caught.

[Brief description of the drawings]

FIG. 1 is an overall perspective view of a desk provided with an auxiliary top plate according to the present invention.

FIG. 2 is an exploded perspective view showing a main part of the first embodiment of the present invention, which is partially broken.

FIG. 3 is a partial longitudinal sectional view of a state before connection showing a main part of the same.

FIG. 4 is a partial longitudinal sectional view of a state after connection showing a main part of the same.

FIG. 5 is a partial bottom view of the same.

FIG. 6 is a partial longitudinal sectional view showing a modification of the mounting structure before connection.

FIG. 7 is an exploded perspective view showing a main part of a second embodiment of the present invention, which is partially broken.

FIG. 8 is a partial longitudinal sectional view of a state before connection showing a main part of the same.

FIG. 9 is a partial longitudinal sectional view of a state after connection showing a main part of the same.

FIG. 10 is a partial bottom view of the same.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Top plate 2 Sleeve part 3 Leg part 4 Curtain plate 5 Auxiliary top plate 5A Lower surface 6 Connection metal 7 Backward hook 8 Mounting hole 9 Fixing plate 10 Lower surface 11 Medium reinforcing member 12 Front surface 13 Locking hole 14 Front reinforcing member 15 Lower surface 16 Screw REFERENCE SIGNS LIST 17 rearward engaging claw 18 engaging hole 19 chamfered portion 20 upper surface 21 upper surface 22 edge member 23 connecting plate 24 side plate 25 through hole or screw hole 26 concave groove 27 mounting bracket 28 projecting piece 29 through hole 30 screw

Claims (3)

[Claims] 1. A mounting structure for mounting an auxiliary top plate on a part of a front edge of a desk top plate, wherein a front portion of a connection fitting is mounted on a lower surface of the auxiliary top plate, and the rear side of the rear edge of the auxiliary top plate. A rearward hook is formed at the rear end of both sides of the connecting fitting protruding toward the rear end, and a horizontal fixing plate having mounting holes on both sides forward of the rearward end is formed. The engaging hole is formed in the engaging hole formed in the front surface of the middle reinforcing member laterally provided at the middle portion in the direction, and the mounting holes are provided in the lower surface of the front reinforcing member laterally provided on the front edge of the lower surface of the top plate. An auxiliary top plate mounting structure for a desk, wherein the auxiliary top plate is attached with screws. 2. A fixing plate of the connection fitting is continuously formed up to a front end, and a rearward engaging claw is projected from a front end of the fixing plate, and the engaging claw is fitted to a lower surface of the auxiliary top plate. The auxiliary top plate mounting structure for a desk according to claim 1, wherein an engaging hole for stopping is provided. 3. An inclined or curved chamfered portion is formed above a front edge of the top plate so that a step is not generated between the top plate and the upper surface of the auxiliary top plate at a rear edge of the auxiliary top plate. The auxiliary top plate mounting structure for a desk according to claim 1 or 2, further comprising an edge member adapted to a shape of the chamfered portion.