JPH0522644Y2 - - Google Patents

Description

[Detailed description of the invention] [Field of industrial application] The present invention relates to a connection device for a top plate and a top support part in assembled furniture, and more specifically, a device for connecting and separating a top plate and a top support part. This invention relates to a connecting device that can be used to connect devices.

[Conventional technology]

Conventionally, there have been various types of connection devices that connect the top plate and the top plate support part through connectors. A locking piece that fits and locks the pin of the connector, inserts the connector into the mounting hole provided on the upper plate of the top plate support, and projects from the connector with a spring bias at all times to the side. Provided is a device that connects the claw portion with the mounting opening edge by a simple operation,
Since the connector protrudes below the top plate, in the connected state, the lower part of the connector protrudes downward from the top plate of the top support part, and if the top support part is a sleeve drawer, it will not touch the top drawer. In addition to being a nuisance, when disassembling the connector, the claws of many connectors had to be removed at the same time, making the separation process time-consuming. In addition, as disclosed in Utility Model Publication No. 62-31684, a locking piece having a claw portion is rotatably mounted in a storage case screwed to a top support portion in an upwardly protruding state, and the locking piece is A coupling device is provided in which the claw portion is inserted into and removed from the locking hole of the top plate by rotating the piece using an eccentric cam, but screwing is required to attach the storage case to the top plate support portion. Also, as mentioned above, it protrudes downward from the top plate of the top plate support, causing problems in the effective use of space within the top plate support, and requires an eccentric cam to engage the locking hole and the pawl when connecting. This required manual operation and was time-consuming.

[The problem that the idea attempts to solve]

In view of the above-mentioned situation, the present invention aims to solve the problem by easily connecting and separating the top plate and the top support part through a connecting tool, and by connecting the connecting tool from the top plate of the top support part. An object of the present invention is to provide a connection device for a top plate and a top plate support part in an assembled furniture, which can minimize downward protrusion and effectively utilize the space below the top plate.

[Means to solve the problem]

In order to solve the above-mentioned problem, the present invention has been developed by attaching the center part of a locking piece with a claw part formed on the outside of the tip so that it can rotate around a spindle in a frame bent into a U-shaped cross section. In addition to making it possible to appear from the frame,
The locking piece is elastically biased outward by an elastic body whose one end is supported by a support piece continuously provided in the frame,
Further, a connecting shaft is rotatably disposed through the bottom plate of the frame at a position inside the operating piece at the lower end of the locking piece,
A rotating body having a generally elliptical shape in a plan view is eccentrically fixed to the upper end of the connecting shaft and arranged in a frame, and when the minor axis direction surface of the rotating body comes into contact with the inner surface of the operation piece, the claw portion moves against the frame. The connecting portion is set so that the claw portion protrudes from the elastic body and retracts against the elastic body when the side surface in contact with the operating piece changes from the short diameter direction surface to the long diameter direction surface as the rotating body rotates, and the connection A connecting tool is formed by fixing a locking plate arranged outside the frame at a predetermined distance from the bottom plate at the lower end of the shaft, and a locking hole is formed in the upper plate into which the locking plate of the connecting tool can be fitted and locked. a top plate support portion formed by a top plate support portion, a portion of the lower plate corresponding to the stop hole being opened to form a housing portion into which a frame of the connector can be inserted, and a locking portion capable of locking the claw portion; It consists of a top plate forming a rim.

Further, an operating portion to which a tool can be connected is formed at the lower end of the connecting shaft, so that the rotating body and the locking plate fixed to the upper and lower ends of the connecting shaft can be rotated.

[Effect]

The device for connecting the top plate and the top support part in the assembled furniture of the present invention, which has the above-mentioned contents, is such that the locking plate protruding from the bottom plate of the connector is fitted into the stop hole formed in the top plate of the top support part. After locking, when the top plate is dropped from above and the frame of the connector is fitted into the housing part, the claws of the locking pieces protruding sideways from the frame are pressed against the side walls of the housing part, causing elasticity. In this state, the operating piece separates from the rotating body, and at the same time as the frame fits into the housing part, the claw part separates from the side wall and protrudes to the side due to the elastic biasing force of the elastic body, and engages the engaging part formed on the top plate. The top plate and the top plate support portion are connected to each other by being engaged with the retaining edge. In addition, by rotating the connecting shaft of the connecting tool approximately 90 degrees from below the upper plate of the top plate support, the rotating body, which is eccentrically fixed to the connecting shaft and has a generally elliptical shape in plan view, rotates and slides on its side surface. While sliding the operating piece at the lower end of the locking piece, the locking piece rotates against the elastic body, and when the long-diameter surface of the rotating body abuts the operating piece, the claw portion is recessed into the frame and separated from the locking edge, allowing the top plate to be separated from the connector.

〔Example〕

Next, the present invention will be further explained in detail based on the embodiments shown in the accompanying drawings.

The assembled furniture to which the present invention is applied can be any type of furniture, including desks, tables, etc., as long as it has a top plate and a top support part.

FIG. 1 is an exploded perspective view of a desk showing a typical embodiment of the present invention, in which A indicates a connector, B indicates a top plate support, and C indicates a top plate.

Connector A is a frame 1 bent into a U-shaped cross section.
The center part of the locking piece 4 is rotatably attached between the side plates 2 and 2 by a support shaft 3, and a claw part 5 is formed outwardly at the upper end of the locking piece 4, and the lower end can be operated. Piece 6
In addition, the bottom plate 7 of the frame 1 is cut and raised parallel to the axis of the support shaft 3, and a support piece 8 is provided between the side plates 2, 2.
is erected facing the locking piece 4 at a distance, and the other end of an elastic body such as a spring 10 is attached at one end to a protrusion 9 formed by cutting and raising a part of the support piece 8 inward. A recess 11 formed in the inner surface of the upper end of the locking piece 4
The claw portion 5 of the locking piece 4 is elastically biased so as to protrude to the side of the frame 1, and is located between the operation piece 6 of the locking piece 4 and the support piece 8. A connecting shaft 12 is rotatably disposed through the bottom plate 7 , and a rotating body 13 having a substantially elliptical shape in plan view is eccentrically fixed to the upper end of the connecting shaft 12 . A locking plate 14 arranged at a predetermined distance from the bottom plate 7 is fixed to the lower end. The upper surface of the claw portion 5 is sloped downward to form a sliding surface 15, and the lower surface is sloped upward and has sawtooth-like unevenness to form a non-slip surface 16. Further, an operating portion 17 such as a hexagonal hole is formed at the lower end of the connecting shaft 12 to connect a tool such as a hexagonal wrench, spanner, or screwdriver, and to rotate the rotating body 13 and the locking plate 14. There is. Further, in this embodiment, the locking plate 14 is formed into a rectangular shape in plan view with one short side rounded into an arc shape, and is eccentrically fixed to the lower end of the connecting shaft 12 so that the connecting shaft 12 The configuration is such that it is easy to check the rotation angle of the Here, the rotating body 13 of the connector A
In a normal state, the major diameter direction is directed to the side, that is, approximately parallel to the locking piece 4, and the upper end thereof is connected to the spring 10.
The operating piece 6 of the locking piece 4 is elastically biased outward at
When the short diameter surface of the rotating body 13 comes into contact with and acts as a stopper for the locking piece 4, and the eccentric tip of the rotating body 13 in the long diameter direction is rotated in the direction of the operating piece 6. , the operating piece 6 is pressed as the rotating body 13 rotates, and the claw portion 5 sinks into the frame 1 against the elastic force of the spring 10;
Maximum when rotated 90°.

In this embodiment, the top plate support part B is composed of a sleeve drawer 18 and a leg plate 19. A top plate 20 is formed at least before and after the upper end of the sleeve drawer 18, and a top plate 20 is also formed at the upper end of the leg plate 19. The upper plate 20 is provided with a large number of locking holes 21, 21 in front and rear pairs for fitting and locking the locking plates 14 of the connector A. In this embodiment, two pairs are formed on both sides of the sleeve drawer 18, and one pair is formed at the front and rear of the leg plate 19, and the shape of the locking hole 21 is a rectangle into which the locking plate 14 can be inserted from above. Note that the locking plate 14 is not limited to the above-mentioned shape, but may have a shape in which a cylindrical enlarged diameter portion is formed at the lower end of the connecting shaft 12, and the shape of the locking hole 21 can also be changed into a large hole and a small hole accordingly. It is also possible to make it into a gourd shape in which the two are connected.

As shown in FIGS. 1 and 3, the top plate C has a part of the lower plate 24 cut out corresponding to the stop holes 21, . . . of the front reinforcement 22 and rear reinforcement 23 formed at the front and rear ends of the lower surface, and The accommodating part 25 of the frame 1 is formed by cutting inward and opening downward, and the upper edge of the side wall 26 of the accommodating part 25 is provided with a locking part for locking the claw part 5 of the locking piece 4. A retaining edge 27 is formed. Note that the shape of the accommodating portion 25, that is, the pair of side walls 2
The shape of the frame 1 of the connector A is formed so that the frame 1 of the connector A can be inserted from below without wobbling in accordance with the substantially trapezoidal shape in which the connector 6 is tapered upward.

Therefore, using the connecting tool A, the top plate support part B
When connecting the top plate C to the top plate C, first insert the locking plate 14 of the connector A into the stop hole 21 formed in the top plate 20 of the top plate support part B as shown in FIG. After sliding the connector A back and forth as shown and locking it to the edge of the stop hole 21, the top plate C is dropped from above as shown in FIG. The frame 1 of the connector A is inserted into the housing part 25 which is open to the outside, and the claw part 5 protruding outward from the upper end of the locking piece 4 locks the upper edge of the side wall 26 of the housing part 25. They are connected by being locked to the edge 27. Here, when the frame 1 of the connector A is fitted into the housing part 25 of the top plate C, the sliding surface 15 on the upper surface of the claw part 5 slides inwardly on the inner surface of the side wall 26 of the housing part 25. The outer end of the claw part 5 separates from the side wall 26 when the frame 1 is completely fitted into the housing part 25 by being pushed and retracted into the frame 1 against the elastic force of the spring 10. Due to the elastic force of the spring 10, it protrudes outward again, and the inclined anti-slip surface 16 of the claw portion 5 engages with the locking edge 27. In this state, the upper end of the locking piece 4 is always elastically biased outward by the spring 10 and always comes into contact with the inclined anti-slip surface 16 at one point, so some dimensional errors may occur during manufacturing. It can be securely locked even when folded. In addition, when separating the top plate support part B and the top plate C, by rotating the connecting shaft 12 of the connecting tool A by 90 degrees with a tool inserted from below the upper plate 20 of the top plate support part B, The operating piece 6 is pushed outward by the eccentric rotating body 13 against the elastic force of the spring 10, and the claw portion 5 sinks into the frame 1, and the engagement with the locking edge 27 is released. is,
If the top plate C is lifted in this state, it can be easily separated, and the locking plate 14 of the connector A can be removed from the stopper hole 21 to separate it. In addition, when the locking plate 14 is eccentrically fixed to the connecting shaft 12 of the connector A, the rotation angle of the connecting shaft 12 and the rotating body 13 can be confirmed by the orientation of the locking plate 14, and the above-mentioned The state in which the claw portion 5 of the locking piece 4 protrudes and retracts from the frame 1 can be confirmed.

Furthermore, the one shown in FIG. 5 shows another embodiment of the stop hole 21, in which when the connecting shaft 12 is rotated and the claw portion 5 is removed from the locking edge 27 of the top plate C, the stop hole 21 is removed. The locking plate 14 that is engaged with the locking hole 2
This allows it to be removed from 1. That is, the shape of this locking hole 21 is similar to that of the locking plate 1.
A rectangular hole into which 4 can be inserted from above and the hole
They are rotated 90 degrees and formed into an L-shape in plan view with one corner overlapping each other. Here, the state in which the locking plate 14 is engaged with the stopper hole 21 is shown by a solid line (partially a dotted line), and the state in which the locking plate 14 can be inserted and removed by rotating 90 degrees is shown by a dashed line. .

In addition, in the case shown in FIGS. 6 and 7, in order to further strengthen the engagement between the locking plate 14 and the upper plate 20 of the top plate support part B, one side of the locking hole 21 is provided. A part of the upper plate 20 is protruded obliquely to form a bulging portion 2.
8, and its inclination is taken into consideration so that when the locking plate 14 is rotated, it can be easily moved from the bulge 28. Further, the lower edges of the ends of the side plates 2, 2 of the frame 1 are extended downward to form a protrusion 29, and the upper plate 20 corresponding to the protrusion 29 is formed with elongated holes 30, 30, and the connector A is formed.
When the connecting tool A is attached to the top plate support part B, rotation and wobbling of the connecting tool A are prevented.

[Effect of idea]

According to the device for connecting the top plate and the top support part in the assembled furniture of the present invention, when the top plate and the top support part are connected, the locking plate of the connector is formed on the top plate of the top support part. Just by fitting and locking into the stop holes, dropping the top plate from above the top plate support part, and fitting the frame of the connector into the housing part of the top plate, the claw part of the connector can be attached to the elastic body. The elastic force allows the locking edge to be locked and the connection can be made very easily and reliably. In addition, when separating, simply rotate the connecting shaft of the connecting tool approximately 90 degrees using a tool inserted from below the top plate of the top plate support.
A rotating body eccentrically fixed to the connecting shaft rotates and slides and presses the operating piece at the lower end of the locking piece, and the locking piece rotates against the elastic body, causing the claw part to be inserted into the frame. It retracts and separates from the locking edge, and in that state the top plate can be lifted and easily separated from the connector. In addition, in the normal state, the rotating body is in contact with the operating piece of the locking piece, and no stopper is required to prevent the claw from protruding excessively to the side of the frame due to the elastic force of the elastic body. It can be regulated. Furthermore, since only the connecting shaft and the locking plate of the connector protrude downward from the upper plate of the top plate support part, when the space below the top plate, that is, the top plate support part is used as a sleeve drawer, The storage space of the topmost drawer can be effectively utilized, and the rotary body and the locking plate can be rotated using a tool inserted into the storage space.

[Brief explanation of drawings]

Fig. 1 is an exploded perspective view of a desk showing an embodiment of the present invention, Fig. 2 is an enlarged perspective view of a connecting device, and Fig. 3 shows a state in which the top support part and the top plate are connected via a connecting device. A longitudinal side view of the main part, Fig. 4 is a partial bottom view showing a state in which the locking plate of the coupling tool and the stopper hole of the top plate support are fitted and locked, and Fig. 5 is a partial bottom view showing the state in which the locking plate of the coupling tool and the stopper hole of the top plate support part are engaged with the stopper hole of other shapes. FIG. 6 is a partial bottom view showing a state in which the stop plate is fitted and locked, FIG. 6 is a longitudinal sectional side view showing another embodiment, and FIG. 7 is a bottom view of FIG. 6. A... Connector, B... Top plate support, C... Top plate, 1... Frame, 2... Side plate, 3... Support shaft,
4...Locking piece, 5...Claw portion, 6...Operation piece, 7...
... Bottom plate, 8 ... Support piece, 9 ... Protrusion, 10 ... Spring, 11 ... Recess, 12 ... Connection shaft, 13
... Rotating body, 14 ... Locking plate, 15 ... Sliding surface,
16... Anti-slip surface, 17... Operation section, 18...
Sleeve drawer, 19...leg plate, 20...upper plate, 21...
...Block hole, 22...Front reinforcement, 23...Rear reinforcement, 24
... Lower plate, 25 ... Accommodation section, 26 ... Side wall, 27
...Locking edge, 28...Bulging part, 29...Protrusion part,
30...Long hole.

Claims (1)

[Claims for Utility Model Registration] 1) The center part of a locking piece having a claw portion formed on the outside of the tip is rotatably mounted on a spindle within a frame bent into a U-shaped cross section, and the claw portion is attached to the frame. The locking piece is elastically biased outward by an elastic body whose one end is supported by a support piece provided continuously within the frame, and the locking piece is made of a bottom plate of the frame. A connecting shaft is rotatably disposed through the inner position of the operating piece at the lower end of one side, and a rotating body having a substantially elliptical shape in a plan view is fixed eccentrically to the upper end of the connecting shaft, and the short diameter of the rotating body is fixed to the upper end of the connecting shaft. When the direction surface comes into contact with the inner surface of the operation piece, the claw portion protrudes from the frame, and when the side surface that contacts the operation piece changes from the minor diameter direction surface to the major diameter direction surface as the rotating body rotates. a connecting device configured such that the claw part is recessed against the elastic body, and a locking plate is fixed to the lower end of the connecting shaft at a predetermined distance from the bottom plate outside the frame; and an upper plate. a top plate support portion formed with a stop hole into which a locking plate of the connector can be fitted and locked, and a part of the lower plate corresponding to the stop hole is opened to accommodate the frame of the connector inside. A connecting device for a top plate and a top plate support part in an assembled furniture, comprising: a top plate forming a housing part into which the nail part can be fitted and a locking edge capable of locking the claw part; 2) Utility model registration claimed in claim 1, wherein an operating part is formed at the lower end of the connecting shaft to which a tool for rotating a rotating body and a locking plate fixed to the upper and lower ends of the connecting shaft can be connected. A connection device between the top plate and the top support part in assembled furniture.