JPH10243839A - Connecting device and furniture using the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a connecting device which enables easy and quick connecting of a bed side plate and a board. SOLUTION: A connecting device is provided with a first connecting means 11 for fitting to a side plate and a second connecting means 12 for fitting to a board. The first connecting means 11 is provided with two or more first protrusions 16a and 16b along specified direction and with specified spaces. The second connecting means 12 is provided with two or more second protrusions 25a-25d along specified direction with specified spaces. Connecting holes 17a and 17b, and 26a-26d, where sectional areas gradually become smaller from one end to the other end along the specified direction, are formed on the first protrusions 16a and 16b, and second protrusions 26a-26d respectively. The first protrusions 16a and 16b, and the second protrusions 25a-25d are opposite to each other through the first connecting means 11 and the second connecting means 12. And a tapered axis 33 is inserted to the connecting holes formed on the protrusions for connecting.

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 removably connecting a pair of members to furniture using the connecting device.

[0002]

2. Description of the Related Art For example, in the case of furniture such as a bed and a chair, the assembly and disassembly of the furniture can be easily performed by connecting a plurality of members constituting the furniture so that the furniture can be disassembled.

[0003] A connection fitting (apparatus) is used to connect the above members so that they can be disassembled. There are various types of connecting fittings, one of which is disclosed in Japanese Utility Model Publication No. 41-22448. The connecting fitting shown in this publication is composed of a male fitting and a female fitting, and the male fitting has a circular projection protruding therefrom, and the female fitting has a hook hole.

The male and female fittings are respectively attached to a pair of members for connection. And
When connecting the pair of members, one member provided with the male member is positioned with respect to the other member provided with the female member so that the circular protrusion of the male member is aligned with the hook hole of the female member. Then, the circular projection is inserted into the hook hole and then slid downward to connect these members.

By the way, according to the connecting fitting having such a configuration, when the male fitting and the female fitting are connected, the circular projection of the male fitting protrudes from the plate surface. Although it can be confirmed, it is difficult to confirm the position of the hook hole from above, so the worker must be centered and check the position of the hook hole while aligning the circular projection with the hook hole. Sometimes it didn't.

[0006] Therefore, the connecting operation is difficult, and in particular, when the member provided with the male fitting is heavy, the burden on the operator may be increased. Further, since the circular projection must be positioned in both the vertical and horizontal directions with respect to the hook, the work may be difficult to perform.

The male and female fittings connected by the engagement between the circular projection and the hook are not fixedly connected, and the circular projection is movable along the hook. In state. Therefore, since the pair of members are not firmly fixed, the connected pair of members may rattle due to external force or the like.

[0008]

As described above, it has been difficult for a worker to check the position of the hook hole of the female fitting from above, so that the conventional connection fitting has a circular projection with respect to the hook hole. Positioning, that is, positioning of the other member with respect to one member may not be easy, or the connection state may not be strong.

The present invention has been made based on the above circumstances, and an object of the present invention is to make it possible to easily position the first member and the second member and to firmly connect the first member and the second member without rattling. And a furniture using the connecting device.

[0010]

According to the first aspect of the present invention, there is provided the following:
A connecting device for connecting the first member and the second member, the first connecting member attached to the first member, and the second connecting member attached to the second member; A plurality of first protrusions are provided at a predetermined interval along a predetermined direction on one connector, and a plurality of second protrusions are provided on the second connector.
Are provided at predetermined intervals along a predetermined direction, and the first and second projections have connection holes whose cross-sectional area gradually decreases from one end to the other end in the predetermined direction. Is formed, and the first connector and the second connector are
The first and second projections are opposed to each other, and a tapered shaft is inserted into a connection hole formed in these projections to be connected.

According to a second aspect of the present invention, in the first aspect of the present invention, the second connector is provided with a plurality of pairs of second convex portions which are separated from each other at a predetermined interval. The first projection is inserted between two paired second projections.

According to a third aspect of the present invention, in the first aspect of the present invention, a first contact surface for positioning the second connector by contacting the second projection with the first connector. Is formed, and a second abutment surface for positioning the first connector with the first convex portion abutting on the second connector is formed.

According to a fourth aspect of the present invention, there is provided a furniture having a plurality of side plates, and adjacent side plates are connected by a connecting device, wherein the connecting device has the structure described in the first aspect.

According to the first aspect of the present invention, the first projection of the first connector and the second projection of the second connector are positioned while being viewed from above, and the projections are connected. Since the taper shaft can be inserted into the hole while also visually observing from above, the work of connecting the first member and the second member can be easily performed, and no rattling occurs due to the taper shaft. A strong connection state can be obtained.

According to the second aspect of the present invention, the first projection of the first connector is inserted between the pair of second projections of the second connector and connected to each other. The connection between the first connector and the second connector is further strengthened.

According to the third aspect of the present invention, the first connecting member and the second connecting member are configured such that the second convex portion and the first convex portion abut on the contact surface formed on the first and second connecting members. Therefore, the first connector and the second connector can be reliably positioned in a predetermined state.

According to the fourth aspect of the present invention, since the side plates of the furniture are connected using the connecting device of the first aspect of the present invention, not only can the disassembly and assembly thereof be facilitated, but also the side plates can be firmly connected and fixed. it can.

[0018]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. FIG. 6 shows a bed apparatus 2 in which the connecting device 1 of the present invention is used. This bed apparatus 2 has a bed frame 3. This bed frame
A pair of side plates 4 as first members disposed parallel to and separated from each other at a predetermined interval, a head board 5 as a second member connected to one longitudinal end of these side plates 4, and other components. It also comprises a footboard 6 as a second member connected to the end.

Receiving bars 7 are provided on the inner surface of each of the side plates 4, and floor plates 8 are erected on the pair of receiving bars 7 by engaging both ends in the width direction. A mattress 9 is placed on the floor plate 8.

The connecting device 1 is used for connecting the side plate 4, the head board 5 and the foot board 6, respectively. The connecting device 1 includes a first connecting tool 11 and a second connecting tool 12 as shown in FIGS. The first connector 11 and the second connector 12 have main bodies 11a and 12a formed by casting a metal such as an aluminum alloy or iron. Mounting holes 13a and 13b are formed at upper and lower end portions and midway portions of the main body portions 11a and 12a, respectively.

Further, as shown in FIG. 2, the back surfaces of the main body portions 11a and 12a are flat mounting surfaces 14a and 14b which are joined to the side plates 4 and the board surfaces of the boards 5 and 6, respectively. A pair of positioning projections 15a and 15b are provided on one end in the width direction of the upper and lower ends of the surfaces 14a and 14b, respectively. The projections 15a and 15b are provided on the side plate 4 and the board.
The holes 5 and 6 are engaged with engaging holes (not shown) formed in portions where the mounting surfaces 14a and 14b are joined.

Each of the connecting members 11 and 12 has a mounting surface 14a,
14b is joined to the inner surface of the side plate 4 or the boards 5, 6, and is fixed by screwing screws (not shown) through the mounting holes 13a, 13b. At this time, by engaging the projections 15a and 15b with the engagement holes, the connecting members 11 and 12 can be reliably positioned at predetermined positions of the side plates 4 and the boards 5 and 6.

On one side surface of the first connecting member 11, first convex portions 16a and 16b are formed at upper and lower portions, respectively. The first protrusions 16a and 16b are substantially cubic, and have first connection holes 17a and 17b penetrating vertically.

The outer surfaces of the projections 16a and 16b, which are flush with the mounting surface 14a, are formed larger than the other surfaces. The first connection holes 17a, 17b
The holes 18a and 18b communicating with the holes are opened. These removal holes 18a and 18b are used for removing the insert die forming the connection holes 17a and 17b when forming the first connecting member 11, but they have no functional significance. The surface where the holes 18a and 18b are opened is the first surface.
Are formed larger than the other surfaces of the convex portions 16a and 16b.

Accordingly, even if the holes 18a and 18b are almost the same size as the heights of the first connection holes 17a and 17b, the bridge 1 is provided at both ends in the vertical direction of the surface.
9 remains. Therefore, the first projections 16 a, 16 a in which the first connection holes 17 a, 17 b are formed by the bridge 19 are provided.
b, the first convex portions 16a, 1b
6b is prevented from decreasing.

Between the pair of upper and lower first projections 16a and 16b, a flat engaging piece 21 is provided so as to project flush with the mounting surface 13a. An engagement groove 22 is formed between the upper and lower ends of the engagement piece 21 and the pair of first protrusions 16a and 16b.

Further, the first connecting member 11 has the first
The one side on which the convex portions 16a and 16b are projected is flat first side.
Contact surface 23. That is, both the up and down directions of the pair of first protrusions 16a and 16b are formed on the first contact surface 23, respectively.

On the other hand, the main body 11 of the second connecting member 12
Two sets of second convex portions 25a, 25b and 25c, 25d projecting from both upper and lower end portions of one side surface of the pair a are projected. The second protrusions 25a to 25d are the first protrusions 16
Similar to a and 16b, it has a substantially cubic shape, and has second connection holes 26a to 26d penetrating in the vertical direction.

The distance between the pair of second projections 25a, 25b and 25c, 25d of each set is the same as that of the first projections 16a, 1d.
6b are set so as to fit therein, respectively.
2a, a pair of second convex portions 25a, 25b and 25c,
Side surfaces between 25d are flat second contact surfaces 27a, respectively.
27b.

A pair of second projections 2 located inside each set
5b and 25c are formed integrally with a plate-shaped connecting portion 28 whose outer surface is flush with the mounting surface 12b.
Is formed in an engagement recess 29 with which the engagement piece 21 engages.

The mounting surfaces 14 of the two second projections 25a and 25d located at both longitudinal ends of the main body 12a.
The surface which is flush with the second connection hole 2b is formed larger than the other surfaces, and the bridge 31 is left there.
A second hole 32 communicating with 6 is formed. The second hole 32 is necessary for removing the insert die for forming the second connection holes 26a and 26d. The second hole 32 is formed while leaving the bridge 31, so that the second connection hole is formed. 2
Since the closed shape of the second convex portions 25a to 25d on which the second convex portions 25a, 26d are formed is maintained, these second convex portions 25a, 25d are formed.
25d prevents a decrease in strength.

The other two second projections 25b and 25c connected by the connection portion 28 are formed with a second hole 32 which is also connected to the second connection holes 26b and 26c. The second of these two second projections 25b, 25c
Convex portion 25 in which connecting holes 26b and 26c are formed.
Since the closed shapes of b and 25c are maintained by the connecting portion 28, the strength of the second convex portions 25b and 25c is prevented from decreasing.

Each of the projections 16a, 16b, 25a to 25
d of the first connection holes 17a and 17b and the second connection hole 26a
26d is formed in a size different in cross-sectional shape. That is, the first connector 11 and the second connector 12 are connected to the first protrusions 16 a and 16 b by a pair of second protrusions 25.
Each of the connection holes is formed in a tapered shape such that the cross-sectional shape becomes gradually smaller from the upper side to the lower side when inserted and assembled between a, 25b and 25c, 25d. FIG. 5 is a schematic diagram of the size and shape of each connection hole.
Each connection hole is formed in a taper shape by inclining only one of the four side surfaces of the inner peripheral surface.

By assembling the first connector 11 and the second connector 12, the center of each connection hole is located on the same straight line.
And these connection holes 17a, 17b, 26a-26
As shown in FIG. 1B, a tapered taper shaft 33 corresponding to a change in the cross-sectional shape of the connection hole is inserted into d. Thereby, the first connector 11 and the second connector 12
Are linked.

The taper shaft 33 includes a shaft portion 33a and a flange portion 33b. The taper shaft 33 prevents the taper shaft 33 from entering the connection hole. When connecting the first connector 11 and the second connector 12, the first protrusions 16a, 16b of the first connector 11 are used.
To the pair of second convex portions 25a, 25 of the second connecting member 12.
b, 25c, and 25d, respectively, one side surface of the first projections 16a, 16b abuts the second abutment surfaces 27a, 27b of the second connector 12, and the second projection 25
One of the side surfaces a to 25d abuts on the first abutment surface 23 of the first connector 11. Thereby, the first connecting tool 11 and the second connecting tool 12 are positioned in the lateral direction.

Moreover, the pair of first projections 16a, 16b
Are a pair of second convex portions 25a, 25b and 25, respectively.
Since it is inserted and positioned between c and 25d, this ensures that the pair of connecting tools 11 and 12 are positioned in the vertical direction. Further, the pair of first protrusions 16a and 16b are respectively replaced with the pair of second protrusions 25a,
Since the connecting members 25b, 25c, and 25d are sandwiched and connected, the connection state of the pair of connecting members 11, 12 becomes strong.

When the connecting members 11, 12 are positioned by the first contact surface 23 and the second contact surfaces 27a, 27b, the respective convex portions 16a, 16b, 25a-2
Since the 5d connection holes 17a, 17b, 26a to 26d are positioned with the center on the same straight line, these connection holes 1
The taper shaft 33 can be easily and surely inserted into 7a, 17b, 26a to 26d.

The first connector 11 and the second connector 12
The operator can visually confirm the position from above, and by positioning the taper shaft 33 to the connection holes 17a, 17b, 26a to 26d whose centers are located on the same straight line. Insertion can also be performed by the operator while visually checking from above.

The cross-sectional shape of the connecting holes 17 and 26 of the pair of connecting tools 11 and 12 is tapered such that the cross-sectional shape becomes gradually smaller from the upper side to the lower side.
a, 17b, 26a to 26d, by inserting the taper shaft 33 to connect the pair of connecting tools 11, 12,
The pair of connectors 11 and 12 are firmly connected without rattling in the vertical and horizontal directions.

FIG. 7 shows another embodiment of the present invention.
In this embodiment, the connecting device 1 of the present invention is connected to a sofa-41.
Applied to That is, in the sofa 41, a rectangular frame-like frame 45 is formed by the front plate 42, the rear plate 43, and the pair of side plates 44. The back plate 43 has a backrest 43a
The side plate 44 is provided with an armrest 44a.

Receiving bars 46 are provided on the inner surfaces of the front plate 42, the rear plate 43, and the side plate 44, and a seat body 47 indicated by a chain line in the drawing is engaged with the receiving bars 46 so as to engage the periphery of the lower surface. Is done.

The connecting device 1 of the present invention is used for connecting the side plate 44 to the front plate 42 and the rear plate 43. The connecting device of the present invention is not limited to the above embodiment, and can be variously modified without departing from the gist of the invention. For example, the connecting holes of each connecting tool are formed in a tapered shape, and a taper shaft is inserted into these connecting holes. Even so, it is possible to reliably connect the pair of connecting tools by the taper shaft. Further, the applicable range of the connecting device of the present invention is not limited to the bed device and the sofa, but can be applied to a chair and other objects, and the use thereof is not limited.

[0043]

According to the first aspect of the present invention, the first projection of the first connector and the second projection of the second connector are positioned while visually observing from above, and these projections are positioned. Similarly, the taper shaft can be inserted into the connection hole while visually observing from above.

Therefore, not only can the connecting operation of the first member and the second member be easily performed, but also the rattling of the first connecting member and the second connecting member due to the taper shaft can be prevented. Not be able to be connected to a strong state.

According to the second aspect of the present invention, the first projection of the first connector is inserted and connected between the pair of second projections of the second connector. In addition to being able to easily and reliably position the first connector and the second connector in the up-down direction, the connection state is further strengthened because the first protrusion is sandwiched between the pair of second protrusions. Becomes

According to the third aspect of the present invention, the first connector and the second connector are configured such that the second convex portion and the first convex portion abut on the contact surface formed on the first connector and the second connector. Is positioned. Therefore, the first connecting member and the second connecting member can be reliably positioned in the lateral direction, so that the connecting operation between the first member and the second member is facilitated.

According to a fourth aspect of the present invention, a pair of adjacent side plates of furniture is connected by using the connecting device of the first aspect of the present invention. Therefore, not only can the disassembly and assembly be performed easily and reliably, but also the pair of side plates can be firmly connected without rattling.

[Brief description of the drawings]

FIG. 1A is a perspective view showing an embodiment of the present invention in a state before connection of a first connector and a second connector, and FIG.
FIG. 2 is a perspective view of the connected state and the taper shaft.

FIG. 2A is a perspective view of a state before connection when the first and second connectors are similarly viewed from different directions, and FIG. 2B is a perspective view of the state where the same is connected.

FIG. 3 is a perspective view of the first connector and the second connector viewed from further different directions.

FIGS. 4 (a) to 4 (g) are cross-sectional views taken along line II-VII-VII of FIG. 2 (a).

FIG. 5 is a schematic diagram for explaining a tapered shape of a connection hole formed in each projection when a pair of connection tools is assembled.

FIG. 6 is a perspective view of a bed device in which the connecting device is used.

FIG. 7 is a perspective view of a sofa showing another embodiment of the present invention.

[Explanation of symbols]

 4 Side plate (first member) 5 Headboard (second member) 6 Footboard (second member) 11 First connector 12 Second connector 16a, 16b Second 1 convex portions 17a, 17b: first connecting holes 25a to 25d: second convex portions 26a to 26d: second connecting holes 33: taper shaft

Claims (4)

[Claims] 1. A connecting device for connecting a first member and a second member, wherein a first connecting member attached to the first member and a second connecting member attached to the second member. A plurality of first projections are provided at predetermined intervals along a predetermined direction on the first connector, and a plurality of second projections are provided on the second connector in a predetermined direction. Are provided at a predetermined interval along, the first convex portion and the second convex portion are formed with a connection hole whose sectional area gradually decreases as going from one end side to the other end side in the predetermined direction, The first connector and the second connector are connected by inserting a taper shaft into a connection hole formed in the first protrusion and the second protrusion, and facing the first protrusion and the second protrusion. A connection device characterized in that the connection device is configured as follows. 2. The second connector is provided with a plurality of pairs of second protrusions spaced apart from each other at a predetermined interval, and the first protrusions are formed by two pairs of second protrusions. The coupling device according to claim 1, wherein the coupling device is inserted between the two convex portions. 3. A first abutment surface for positioning the second connector by contacting the second protrusion with the first connector, and the second connector has a first contact surface. The coupling device according to claim 1, wherein a second contact surface for positioning the first coupling tool by contacting the first protrusion is formed. 4. Furniture having a plurality of side plates, wherein adjacent side plates are connected by a connecting device, wherein the connecting device has the configuration described in claim 1.