JPH052105Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] The present invention connects the top plate of a desk to the legs on both the left and right sides via brackets, or connects two desks placed on the left and right sides. When connecting a horizontal member to a vertical member of furniture through a bracket, such as by attaching an auxiliary top plate to the brackets attached to the facing legs, or attaching a shelf board to the support of a shelving device via a bracket. This relates to the structure of the bracket used.

[Conventional technology]

Conventionally, as a device for connecting the vertical members and horizontal members of furniture, a prior art Japanese Patent Publication No. 59-18501
As disclosed in the publication, the main body of the metal fitting is equipped with a hook at the tip that engages with the engagement groove on the side of the support.
Slideably inserted into the side end of the hollow cross beam,
A wedge body that contacts the slope formed in the recess of the metal fitting body is screwed into a bolt inserted from the side of the cross beam,
A configuration is disclosed in which, when the end surface of the cross beam is brought into contact with the side surface of the column and the bolt is tightened, the metal fitting body is pulled inward toward the end surface of the cross beam through a wedge, thereby connecting the column and the cross beam. .

[Problem that the invention attempts to solve]

In such a coupling device, the direction of movement of the metal fitting body and the axial direction of the bolt are substantially perpendicular, and the head and threaded end of the bolt are locked across the pair of side plates of the cross beam. Therefore, when separately attaching a shelf board or a top board to the cross beam, the head of the bolt or the tip of the threaded part becomes an obstacle.

Furthermore, a hook protrudes from one side of the metal fitting body,
Since the contact surface of the support with the inner surface of the locking part is approximately parallel to the side of the support, the tightening force by the bolt acts only in a direction perpendicular to the side of the support, and in other words, the external force is parallel to the side of the support. Then, when an external force parallel to the contact surface acts on the cross beam or the like, there is a drawback that the engagement between the hook and the engaging portion easily comes off.

Moreover, since the hook protruding from the metal fitting body must be inserted into the locking groove from the end face side of the column, when connecting a cross beam halfway in the longitudinal direction of the column, it is necessary to insert the metal fitting body along the locking groove. It is necessary to move it a long distance, which is time-consuming. Further, when the end face of the support column is blocked by another member, there is a problem that the hook cannot be inserted into the support support.

In addition, in the invention of Utility Model Publication No. 36-9439, a fitting piece to be locked in the oblong locking groove of one cross beam is inserted into a bracket having an L-shaped cross section fixed to the side end of the other cross beam. A configuration in which wing bolts are screwed together is disclosed, but even with this configuration, the fitting piece must be inserted into the locking groove from the end of the one cross beam, which is time-consuming. It was the same.

The present invention aims to solve these problems.

[Means for solving problems]

Therefore, in the present invention, when horizontal members such as desk tops and shelves are connected to vertical members such as legs and supports of furniture through brackets, the vertical members are provided with insertion holes drilled in the side panels. An engaging piece is provided on the inner side of the hole, and the engaging piece is provided with an inclined engaging groove so as to move away from the side plate inwardly on the side closer to the insertion hole and approach the inner surface of the side plate on the proximal end side. , A support member is fixed to the inside of the bracket to which the horizontal member is attached, and supports the base of the locking piece so as to be slidable in a substantially horizontal direction but not rotatable, and an inclined claw provided at the tip of the locking piece. is configured to be inserted through an insertion hole in the vertical member and locked in the engagement groove, and a bolt that is screwed into a female threaded portion of the base of the locking piece is rotatably supported by the support body; The structure is such that the locking piece is pulled toward the bracket through the bolt and tightened.

[Functions and effects of the invention]

As described above, according to the present invention, since the locking piece and the bolt are fastened by sandwiching the support body that slidably supports the locking piece itself, the bolt itself does not need to be that long. Moreover, since the axial direction of the bolt and the moving direction of the locking piece substantially coincide with each other, there is no need to arrange the bolt so as to pass through the upper and lower side plates of the bracket. Therefore, the bracket can be formed into an L-shaped cross section as in the conventional case, and used to attach a top plate or a shelf to the upper plate portion.

Furthermore, fewer bolt turns are required to tighten and loosen the locking piece relative to the longitudinal member compared to moving the wedge of the prior art.

In addition, since an insertion hole is formed in the side plate of the horizontal member and an engagement piece is provided inside the insertion hole, the tip of the locking piece can be inserted into the insertion hole, and the downwardly inwardly inclined claw at the tip of the locking piece can be inserted into the insertion hole. It is sufficient to lock the hook or the fitting piece into the slanted engagement groove of the engagement piece.As in the conventional technology, after inserting the hook or the fitting piece into the locking groove from the end face of one cross beam or column, There is no need to move a distance, and there is an effect that the connection work does not take much time.

When the locking piece that is locked to the engaging piece of the horizontal member is tightened by pulling it toward the bracket using a bolt inserted into the support of the bracket, the side surface of the bracket is brought into contact with the side end surface of the crossbeam by the locking piece. The two are connected by being pulled together as if being pressed, and the state in which the downwardly inwardly inclined claw at the tip of the locking piece locks with the engaging piece on the leg side is not parallel to the abutment surface of the two, Since it is in a so-called holding state due to the inclined surface, a strong connection effect can be achieved.

Furthermore, since the support fixed to the bracket supports the locking piece so that it can move freely in a substantially horizontal direction and cannot rotate, the locking piece that is temporarily fixed to the support through a bolt can The posture of the locking piece is in a substantially horizontal state and it protrudes laterally, which has the effect that positioning work when inserting the tip of the locking piece into the horizontal member is extremely simple.

〔Example〕

Next, the present invention will be explained as an embodiment in which the side parts of desks are connected to each other by an auxiliary top plate.
, a pair of left and right flat legs 2, 2, a cross beam 3 that horizontally connects the upper parts of the legs, and a desk that is placed between the cross beam 3 and the upper surfaces of both the left and right legs 2, 2 so as to be movable back and forth. It consists of a top plate 4 and a left and right longitudinal wiring tray 5 with an open upper surface and connected to the upper portions of the left and right legs 2 behind the cross beam 3.

As shown in FIG. 1, these desks 1, 1 are connected in a substantially L-shape in plan view via an auxiliary top plate 21 and brackets 22, 22 of the present invention.

In this case, adjusters 6a and 6b are attached to the lower front and rear ends of the leg 2 on the side where the auxiliary top plate 21 is attached, while front and rear adjusters 7a are attached to the lower end of the leg 2 on the side where the auxiliary top plate 21 is not attached. The front and rear longitudinal legs 7 with the front and rear sides protrude forward, and a rear adjuster 6a is provided.

Further, each leg 2 is surrounded by side plates 2a and 2b, and a vertical longitudinal partition wall plate 9 is provided at a position near the rear of each leg 2 so as to approximately bisect the thickness thereof. 9, vertical and longitudinal cord insertion passages 8a and 8b, which can communicate with the side ends of the wiring tray 5, are recessed in each of the inner and outer positions of the leg body 2, and each cord insertion passage 8a, 8b has a recessed cord insertion passage 8a, 8b that can be freely attached and detached. Upper and lower longitudinal cover bodies 10 and 11 are provided.

The cross beam 3 has a downward U-shaped cross section and is longitudinally formed on the left and right sides, and the left and right ends of the cross beam 3 and the pair of left and right legs 2, 2 are connected to a bracket piece 12 of the cross beam 3, which is detachably attached thereto. They are firmly connected via a connecting device 15 consisting of a locking piece 13, an engaging piece 17 provided in each leg 2, and a bolt 14.

That is, the locking piece 13 is removably attached to the bracket piece 12 and is placed so as to be movable approximately horizontally, and can protrude laterally from both left and right end surfaces of the cross beam 3.

At the tip of the locking piece 13, there is a downwardly inwardly inclined claw 13.
The locking piece 13 with a is integrally formed, and the locking piece 13
A female threaded portion 13b is welded and fixed to the base end of.

The inclined surface of the bracket piece 12 is provided with a through hole into which the tip end of a hexagon socket head bolt 14 which is screwed into the female threaded portion 13b of the locking piece 13 can be inserted.

On the other hand, insertion holes 16 are formed in the side plates 2a and 2b of both leg bodies 2.
a, 16b, and an inclined engagement groove 17a is formed on the upper surface of the stepped portion of the engagement piece 17 fixed between the side plates 2a, 2b.
The insertion hole 16 is formed in the inclined engagement groove 17a.
While dropping and locking the downwardly inwardly inclined claw 13a at the tip of the locking piece 13 inserted into the locking piece 1,
2. Lock the bolt 14 to be inserted into the through hole of the inclined surface with the locking piece 1.
By screwing and tightening the female threaded portion 13b of 3, the legs 2, 2 on both the left and right sides are drawn and connected to the side end surface of the cross beam 3.

At this time, a wrench hole 20 is bored in the lower surface plate of the front vertical plate portion 3a of the cross beam 3 so that the hexagon socket head bolt 14 can be easily operated from the lower surface side of the desk.

As shown in FIGS. 2 to 4, the bracket 22 of the present invention includes an upper plate 23 on which an auxiliary top plate 21, which is a horizontal member, is placed and fixed, and a Z-shaped cross section welded to the lower surface of the upper plate 23. and a pair of front and rear supports 25, 25 having a U-shaped cross section and welded to both the upper plate 23 and the bottom plate 24a of the reinforcing member 24.

On the other hand, the locking piece 26 that is slidably inserted into each of the supports 25 in a substantially horizontal direction is integrally formed with a downwardly inwardly inclined claw 26a at its tip, and has a base that is attached to each of the supports 25. A female threaded portion 26b is provided to be screwed into the bolt 27 inserted into the bolt 25.

A pair of side plates 25a, 2 in each support body 25
5b, a space is formed into which the base of the locking piece 26 can be inserted, and one side plate 25b has a guide groove 25c in which the base of the locking piece 26 is slidably supported so as to be able to move forward and backward and not rotate. A notch is formed, and the outer surface of this side plate 25b is covered with the side plate 24c of the reinforcing member.

Further, the bolt insertion portion 25d of each support body 25 is arranged approximately parallel to the vertical plate 24b of the reinforcing member 24, with an appropriate distance therebetween.
A hole 24d into which the head of No. 7 can be inserted is bored.

According to this configuration, the claw 26a of the locking piece 26 fitted into the support body 25 of the bracket 22 and having a downwardly inwardly inclined tip is inserted into the engagement piece from the outer insertion hole 16b of the leg body 2, which is a vertical member. 17, and by pulling and tightening the locking piece 26 toward the bracket 22 via the bolt 27, the side end surface of the bracket 22 and the outer plate 2 of the leg 2 are connected.
b are firmly connected in a state where they are in contact with each other.

That is, as shown by the dashed line in FIG. When the bolt 27 inserted into the bracket 22 is pulled into the inside of the bracket 22 and tightened, the locking piece 26 pulls the outer surface of the leg 2 against the side end surface of the bracket 22, connecting the two. The downwardly inwardly inclined claw 26a at the tip of the locking piece 26 engages the inclined engagement groove 17a of the engagement piece 17 on the leg side.
The state in which the two parts are locked is not parallel to the abutting surfaces of the two, but is in a so-called holding state due to the surfaces that are inclined thereto, so that a strong connecting action can be achieved.

At this time, the locking piece 26 and the insertion hole 16a of the leg body 2
, the relationship between the locking piece 26 and the support body 25 which is its support part, and the relationship between the bolt 27 inserted into the support body 25 and the female threaded part 26b of the locking piece 26 are determined by the distance between the positions of each other. Because it has a gender,
This simplifies the assembly process and eliminates the need for mutual alignment, which is the case with conventional fastening bolts and nuts.

Since the locking piece 26 is surrounded by its support body 25, the upper plate 23 of the bracket, and the reinforcing member 24,
The locking piece is not visible from the outside when the horizontal member and the vertical member are connected, and the aesthetic appearance can be improved.

It goes without saying that the bracket device of the present invention can also be used to connect a support in a display device or the like with a shelf provided on one side thereof.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention, in which Fig. 1 is a perspective view of the connected state of the desk, Fig. 2 is an enlarged sectional view taken along the - line in Fig. 1, and Fig. 3 is a partially cutaway view taken on the - line in Fig. 2. The cross-sectional view, FIG. 4, is an enlarged cross-sectional view taken along the - line in FIG. 1...Desk, 2, 2...Legs, 3...Horizontal beam, 4...
...Desk top plate, 5...Wiring tray, 8a, 8b...
Insertion path, 9... Division wall plate, 10, 11... Cover body, 12... Bracket piece, 22... Bracket, 23... Top plate, 24... Reinforcement member, 25...
Support body, 13, 26... Locking piece, 13a, 26a
...Claw, 13b, 26b...Female thread part, 14,
27... Bolt, 16a, 16b... Insertion hole, 1
7... Engagement piece, 17a... Inclined engagement groove.

Claims (1)

[Scope of utility model registration request] When connecting horizontal members such as desk tops and shelves to vertical members such as legs and supports of furniture through brackets, the vertical members are provided with holes that engage inside from insertion holes drilled in the side plates. A coupling piece is provided, and the engagement piece is provided with an inclined engagement groove such that a side close to the insertion hole is separated from the side plate inwardly and a proximal end approaches the inner surface of the side plate, and the horizontal member is attached. A support body that supports the base of the locking piece so as to be slidable in a substantially horizontal direction but not rotatable is fixed to the inside of the bracket, and an inclined claw provided at the tip of the locking piece is attached to the vertical member. A bolt is configured to be inserted through an insertion hole in and locked in the engagement groove, and is rotatably supported by the support body, and is screwed into a female threaded portion of the base of the locking piece. A bracket device for furniture, characterized in that a locking piece is configured to be pulled toward the bracket and tightened.