JP2814425B2 - Coupling device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a connecting device for connecting a top plate and a shelf mainly in a desk with a shelf.

[0002]

2. Description of the Related Art As a conventional connecting device of this type, as described in Japanese Utility Model Publication No. 63-31644, a screw end is most commonly brought into contact with a lower surface of a top plate.

[0003]

The above-mentioned conventional connecting device has the following disadvantages. First, desks with shelves are usually set so that the side plates of the shelves and the desks are substantially at the same position in the left-right direction. When the screw end is brought into contact with the area directly below, the screw rotation operation part (screw head) comes close to the desk side plate, making it difficult to rotate the screw, and using another tool such as a screwdriver for operation You may have to do it. Further, if the connection position of the screw end of the connection device is set to a position away from the side plate of the desk in order to facilitate the rotation operation of the screw in the connection device having this structure, the connection with the top plate is poor. As a result, not only is the connection between the top plate and the shelf easy to be disengaged, but also because a pure vertical tightening force does not work and an extra rotational moment is generated, so excessive force is applied, and the connecting device or There is a possibility that the top plate edge may be damaged.

[0004] It is an object of the present invention to provide a connecting device capable of securely and firmly connecting a shelf and a top plate without generating an extra rotational moment even if the axis of the screw for tightening is outside the mounting portion. To provide.

[0005]

According to the present invention, the above-mentioned problem is solved as follows. (1) A substantially U-shaped bent portion is formed outward from a mounting portion attached to an upper member, and a screw hole is screwed into a lower horizontal piece of the bent portion extending below a lower surface of a lower member. A connecting member main body, a fastening screw screwed into the screw hole, and a fixing piece having an upward contact portion formed at an end thereof, wherein the abutting portion substantially corresponds to an attaching portion of the connecting member main body. The fixing piece is arranged in the bent portion so as to be on the same plane, and the fixing piece can be raised and lowered in a vertical direction with rotation of the tightening screw.

(2) In the above item (1), the fixing piece is fixed to the pin loosely fitted in the long hole so as to slide along the vertically long hole formed in the connecting member body.

(3) In the above item (1), the vertical portion of the fixing piece is slidably brought into contact with the vertical portion of the connector body, and the lower end of the vertical portion of the fixing piece is bent inward and horizontally.
A through hole is provided in the lower horizontal portion bent inward and horizontally, and a tightening screw is inserted.

(4) In any one of the above items (1) to (3), the mounting portion of the connector body is fixed to a side plate of a shelf placed on a tabletop of a desk, and vertically upward with a tightening screw. The shelf is connected to the top plate by engaging the upward contact surface of the fixing piece biased to the lower surface of the top plate.

[0009]

According to the present invention, when the upper member is connected to the lower member, the operation position on the lower surface of the lower member is almost immediately below the mounting portion of the connecting member main body, and is raised by rotating the tightening screw. The lower member is vertically clamped and clamped by the contact portion of the fixing piece and the lower end of the upper member attached to the attachment portion.

[0010]

1 and 2 show a first embodiment of a connecting device according to the present invention. Reference numeral (1) indicates a top plate of a desk, and (2) indicates a side plate of a shelf placed on the desk. In this embodiment, a shelf (2) is connected to a table top (1).

[0011] As shown in FIG. 1, a connecting device main body of a connecting device.
(3) has a vertically extending mounting part (4) at its upper part.
This mounting part (4) is a nut embedded in the side plate (2) of the shelf.
It is attached to the side plate (2) by screwing the mounting bolt (6) into (5). A substantially U-shaped bent portion (7) is formed outward from a lower portion of the mounting portion (4). This bend (7)
Is provided with two ridges (8) for reinforcement. The middle of the bent portion (7) is a vertical portion (7a), and a lower horizontal piece (7b) is formed below the vertical portion (7a). Reinforcing ribs (8a) are also formed at corners between the vertical portion (7a) and the lower horizontal piece (7b).

The lower horizontal piece (7b) of the connector body (3) is provided with a screw hole (9) formed by burring, and a tightening screw (10) is inserted into the screw hole (9). It is screwed and extends in the vertical direction. At the lower end of the tightening screw (10) is attached a head (11) which is provided with irregularities so that it can be easily turned by hand. The head (11) also has a groove for a driver formed on the end face.

The upper end of the tightening screw (10) is in contact with the horizontal portion (12a) of the fixing piece (12). A vertical part (12) extending vertically downward from the end of the horizontal part (12a) on the side of the connector body.
b) is in contact with the vertical part (7a) of the connector body (3). A through hole drilled in the vertical part (12b) of the fixing piece (12) and a vertical slot drilled in the vertical part (7a) of the connector body (3)
(13) and the pin (14) is loosely fitted and crimped, and the fixing piece (1
2) can slide in the vertical direction with respect to the connecting member main body (3) while maintaining the contact relationship.

The horizontal portion (12a) of the fixing piece (12) is bent upward from the end farther from the connecting member body to form a contact portion (12c). The contact portion (12c) abuts on the lower surface of the desk top plate (1). The contact position is just below the attaching portion (4) of the connecting member body (3), that is, the attaching portion (4). The length of the horizontal portion (12a) is determined so as to be on the same plane as. Contact part (12
In (c), the middle part of the upper edge is slightly depressed so that the contact points of action are dispersed.

Since this connecting device has the above-described structure,
After attaching the attaching portion (4) of the connecting member body (3) to the side plate (2) of the shelf placed on the desk with the bolt (6), the fastening screw (10) is rotated to fix the fixing piece ( 12) is raised, and the contact portion (12c) is strongly fastened to the lower surface of the table top (1) to connect the shelf to the table top (1).

In the second embodiment shown in FIG. 3, the fixing piece (12) is not pin-connected to the connector body (3), and the vertical portion (12b) of the fixing piece (12) is Vertical part of (3) (7
It is only sliding on a). In the case of this embodiment, a lower horizontal portion (12d) extends from the lower end of the vertical portion (12b) of the fixing piece (12), and a through hole formed in the lower horizontal portion (12d) is tightened with a screw (10). Is passing. With this configuration, the fixing piece (12) is stably moved up and down without rotating while being in contact with the connector body (3). Reference numeral (15) denotes a fixing ring for preventing the fastening screw (10) from falling off.

[0017]

According to the present invention, when connecting the upper and lower members, the operating position on the lower surface of the lower member is almost immediately below the mounting portion of the connecting member main body, and the fixing piece which is raised by the rotating operation of the tightening screw. The lower member is vertically clamped and pinched by the abutting portion and the lower end of the upper member attached to the mounting portion, and the upper member and the lower member are securely and firmly connected. Even if the shaft center of the tightening screw is outside the mounting part, no extra rotational moment is generated in the connecting device and a vertical tightening force is generated,
By arranging the tightening screw near the outer end, which is easier to operate, it can be directly operated without using a tool or the like. Since the vertical tightening force acts considerably inward from the outer end of the lower member, even if some external force is applied to the upper member to slightly move it, there is no possibility that the coupling device will come off and the upper member will not move. Falling can be prevented.

According to the second aspect of the present invention, the fixing piece is
When the fixing piece is fastened to the pin loosely fitted in the long hole so as to slide along the vertical elongated hole formed in the connecting tool main body, the contact portion of the fixing piece and the mounting part of the connecting tool main body are The fixing piece can be moved by the operation of the tightening screw without rotating the fixing piece, while maintaining the alignment relationship of.

According to the third aspect of the present invention, the vertical portion of the fixing piece is slidably brought into contact with the vertical portion of the connecting member body,
When the lower end of the vertical portion of the fixing piece is bent inward and horizontally, a through hole is provided in the lower horizontal portion bent inward and the fastening screw is inserted, and the fixing piece and the connector body are pin-connected. In addition, the fixed piece can be moved by the operation of the tightening screw without rotating the fixed piece, while maintaining the alignment relationship between the contact portion of the fixed piece and the mounting portion of the connector body.

According to the fourth aspect of the present invention, the mounting portion of the connecting member main body is fixed to a side plate of a shelf placed on a top plate of a desk,
When the upward contact surface of the fixing piece urged vertically upward by the tightening screw is engaged with the lower surface of the top plate to connect the shelf and the top plate, the shelf and the top plate are connected. It is securely and firmly connected.

[Brief description of the drawings]

FIG. 1 is a front view of a first embodiment of a connecting device of the present invention.

FIG. 2 is a side view of the embodiment shown in FIG.

FIG. 3 is a front view of the second embodiment.

[Explanation of symbols]

 (1) Desk top plate (2) Shelf side plate (3) Connector body (4) Mounting part (5) Nut (6) Mounting bolt (7) Bending part (7a) Vertical part (7b) Lower horizontal piece ( 8) Reinforcing ridge (8a) Reinforcing rib (9) Screw hole (10) Tightening screw (11) Head (12) Fixing piece (12a) Horizontal part (12b) Vertical part (12c) Abutment part (12d ) Lower horizontal part (13) Slot (14) Pin (15) Retaining ring

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int. Cl. ⁶ , DB name) A47B 17/00 A47B 13/00 F16B 12/20 F16B 12/32

Claims (4)

(57) [Claims] A substantially U-shaped bent portion is formed outwardly from a mounting portion attached to an upper member, and a screw hole is screwed into a lower horizontal piece of the bent portion extending below a lower surface of a lower member. A connecting member body, a fastening screw screwed into the screw hole, and a fixing piece having an upward abutting portion formed at an end thereof, wherein the abutting portion substantially corresponds to an attaching portion of the connecting member body. A coupling device, wherein the fixing piece is arranged in the bent portion so as to be in the same plane, and the fixing piece can be moved up and down in a vertical direction with rotation of the tightening screw. 2. The fixing device according to claim 1, wherein the fixing piece is fixed to a pin loosely fitted in the long hole so as to slide along a vertically long hole formed in the connecting member main body. The coupling device as described. 3. The vertical portion of the fixing piece is slidably abutted on the vertical portion of the connector body, and the lower end of the vertical portion of the fixing piece is bent inward and horizontally, and the lower horizontal portion is bent inward and horizontally. The connecting device according to claim 1, wherein a through hole is provided in the portion, and a tightening screw is inserted therethrough. 4. The mounting portion of the connector main body is fixed to a side plate of a shelf placed on a table top of a desk, and an upward contact surface of a fixing piece urged vertically upward by a tightening screw is attached to the top. The connection device according to any one of claims 1 to 3, wherein the connection between the shelf and the top plate is performed by engaging with a lower surface of the plate.