JPH0947332A - Frame body connector - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily adjust and set a connecting position by engaging a pair of connectors forming the engage projecting part in one side frame body to an engage piece part from the inserting groove of the other side frame body while mutually separating the engage piece parts of a pair of connectors by a cam mechanism in the case of engagement. SOLUTION: Frame body 2 of one side is provided with 1st and 2nd connecting parts 6 and 7, engage piece parts 9 are protrusively formed on the outer face part of its recessed housing part 8 across an inserting groove 10 and besides, the frame body 3 of the other side has a pair of connectors 14 and 15. Between the connectors 14 and 15, a cam mechanism 28 is installed for opening/closing insertion piece parts 20 and 25 in approaching and separating directions. The cam mechanism 28 is composed of a cam body 30 to freely move back and forth only in the axial direction of a cam supporting shaft and a cam body 31 formed at the connector 15 so as to be freely rotated. When the cam body 31 is turned in the state of inserting the top end parts of the connectors 14 and 15 into the inserting groove 10 of the 1st connecting part 6, the top end parts of a pair of connectors 14 and 15 are easily held at the opposite engage piece parts 9 of the 1st connecting part 6 in the engaged state.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a frame connecting device, for example, one in which a plurality of frame members such as a vertical frame member and a horizontal frame member which constitute a furniture main body installed in a kitchen are connected to each other and assembled. Regarding

[0002]

2. Description of the Related Art Conventionally, a furniture body of this type is constructed by vertically connecting left and right vertical frame members and a plurality of metal horizontal frame members to the upper and lower portions of the front, rear, left and right vertical frame members, respectively. However,
The vertical frame member and the horizontal frame member are usually connected by welding the connecting portions of the frame members to each other, by using other connecting metal fittings, or by connecting a plurality of connecting pins. Means are taken.

[0003]

In the conventional means for connecting frame members to each other, it is impossible to easily connect the frame members to each other in the case of welding, and when the connecting metal fittings are used, the frame members to each other are to be connected. It is necessary to form a connecting portion for connecting the connecting metal fittings to each other, and in the case of a plurality of connecting pins, it is necessary to form a plurality of insertion holes for inserting the plurality of connecting pins in the mutual frame bodies. With the conventional frame mutual connecting means, it is not possible to easily connect a plurality of frame bodies to each other, and temporarily fix the other frame body to one frame body to adjust the connecting position of the frame bodies. However, there is a problem in that a lot of work is required when assembling the furniture main body by connecting these frame bodies.

The present invention has been made in view of the above point, and one frame can be easily connected to the other frame with one touch, and one frame can be connected to the other frame. It is not necessary to mold the connecting part to do so, temporarily fix the other frame body to one frame body and easily adjust and set the connection position of the frame body, and connect these frame bodies It is an object of the present invention to provide a frame connecting device in which the furniture main body can be easily assembled, and therefore has excellent workability as a whole.

[0005]

According to another aspect of the present invention, there is provided a frame connecting device, wherein one of the frame members is formed with a connecting portion in which a facing engaging piece portion is provided so as to sandwich an insertion groove. The connecting tool projecting from the end of the other frame connected to the frame is provided in parallel with each other to rotatably support the base end and at the tip end of the one frame. A pair of connecting pieces each having an engaging projection that engages with an engaging piece opposite to the insertion groove of the connecting portion, and an engaging piece portion of the connecting portion that is provided between the pair of connecting pieces and faces each other. Support the engaging projections of the pair of connecting pieces so that they can move in the direction of approaching each other, and engage the engaging projections of the pair of connecting pieces with the opposing engaging piece parts of the connecting portions. And a cam mechanism that holds the engaging projections of the pair of connecting pieces in an engaged state in which they are separated from each other when they are fitted together.

When the cam mechanism is operated, the engagement projections of the pair of connecting pieces of the connecting tool are supported by the cam mechanism so as to be movable in the directions of proximity to each other, and the other frame is connected. When the engaging projections of the pair of connecting pieces of the tool are inserted into the insertion grooves of the one frame body, the engaging projections of the pair of connecting pieces are moved in the inserting groove in the proximity direction and By being passed through, it is engaged with the inner surface of the opposite engaging piece portion. Further, when the cam mechanism is operated, the engagement protrusions of the pair of coupling pieces are held by the cam mechanism in a state of being separated from each other and engaged with the opposing engagement piece portions.

According to a second aspect of the present invention, there is provided the frame connecting device according to the first aspect.
In the frame body connecting device described above, the cam mechanism is provided on one of the connecting pieces so as to be movable back and forth, and is provided on one side of the other connecting piece to form a cam, and on the other connecting piece, the cam mechanism is rotatably provided. And a second cam body which is located on the side of the one coupling piece and forms a cam that engages with the cam of the one cam body and which advances and retreats by rotation, and the other cam body that is provided so as to project from the other cam body. It is provided with a support protrusion for supporting one piece and an operation portion for rotating the other cam body.

When the operation portion is rotated, the other cam body having this operation portion is rotated and the cam of the other cam body and the cam of the one cam body engaged with the cam are rotated. The other cam body is advanced and retracted, and the other connecting piece is advanced and retracted by the support projection of the other cam body.

According to a second aspect of the present invention, there is provided a frame connecting device according to the second aspect.
In the frame body connecting device described above, one of the cam bodies is axially attached to a cam support shaft projectingly provided on one of the connection pieces so as to be able to move back and forth only in the axial direction, and a spring provided on the cam support shaft allows the other cam body to move to the other side. An operating portion that is constantly urged toward the cam body and that rotationally operates the other cam body is rotatably projected at the end of the other frame body.

When the connecting member is attached to the end portion of the other frame body, when the operating portion is pushed, the other cam body causes one of the cam bodies to resist the spring and move along the cam support shaft. Is moved toward the connecting piece and the pushing surface of the operating portion is pushed in a state of being substantially flush with the other connecting piece, and the connecting tool is fitted into the end portion of the other frame body. As a result, the spring of the cam mechanism pushes the other cam body via the one cam body, and the operating portion of the other cam body is provided at the end of the other frame body in a protruding manner.

[0011]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of the present invention will be described below with reference to the accompanying drawings.

Reference numeral 1 denotes a frame connecting device, which is a frame connecting device 1.
Is one frame body 2 in the up-down direction, the other frame body 3 in the left-right direction connected to this one frame body 2, and the other frame body 3 fitted and projected on both ends of the other frame body 3. And a connecting tool 4 for connecting the frame body 3 to the one frame body 2.

The one frame 2 is formed of a mold material 5 into a substantially rectangular cross section and a substantially prismatic shape, and a vertical first connecting portion 6 is formed on one side thereof. A second connecting portion 7 in the up-down direction is formed on the other side portion adjacent to the connecting portion 6. Each of the first connecting portion 6 and the second connecting portion 7 has a housing recess 8 having an opening in the outer surface in the up-down direction, and an engaging piece portion 9 facing the outer surface of the housing recess 8 is provided with an insertion groove 10. Formed in such a manner as to be protruded with respect to each other, that is, the engaging piece portions 9 in the up-and-down direction are respectively provided so as to be opposed to the outer surface portions of both accommodation recesses 8, and the inner end portions of the opposite engaging piece portions 9 are opposed to each other. Insertion grooves 10 are respectively formed in the.

The other frame 3 is formed into a prismatic shape having a hollow portion 12 having a rectangular cross section with a mold material 11, and the hollow portion 12 is formed at one side near both ends thereof. Circular guide holes 13 that communicate with each other are formed. Then, the connecting tool 4 is fitted and protruded at both ends of the hollow portion 13 of the other frame body 3.

Next, the connecting tool 4 has a pair of left and right connecting pieces 14 and 15 arranged in parallel with each other, and the base end portion of one of the connecting pieces 14 is upwardly moved. Guide piece 16
Vertically projecting integrally with each other, and mounting pieces 17 respectively project integrally at opposite ends of the guide piece 16 in the front-rear direction. 18 are formed respectively.

In addition, the insertion groove is formed at the tip of the one connecting piece 14 through a bent piece portion 19 bent upward.
An insertion piece portion 20 to be inserted into 10 is projected, and an engagement piece portion 20 on one side of the insertion groove 10 is engaged with the insertion piece portion 20 in a direction orthogonal to the insertion direction of the insertion piece portion 20. A projecting portion 21 is integrally provided so as to project downward, and an edge portion of the engaging piece portion 9 on one side of the insertion groove 10 is provided between the engaging projecting portion 21 and the bending piece portion 19. An abutting portion 21a that abuts is formed.

Further, at the base end of the other connecting piece 15, mounting pieces 22 facing the mounting pieces 17 at both ends of the one connecting piece 14 are respectively provided at both ends in the width direction of the connecting piece 15. A support shaft 23 movably inserted into the guide hole 18 of the mounting pieces 17 at both ends is integrally projected to the mounting pieces 22 at both ends.

Further, an insertion piece portion 25 to be inserted into the insertion groove 10 is protruded from a tip end portion of the other connecting piece 15 through a bending piece portion 24 bent downward, and this insertion piece portion 25
An engaging projection 26 which engages with the engaging piece 9 on the other side of the insertion groove 10 is integrally provided on the upper side of the engaging piece 25 in a direction orthogonal to the inserting direction of the inserting piece 25. The engaging piece 9 on the other side of the insertion groove 10 is provided between the projecting portion 26 and the bent piece 24.
The contact portion 26a is formed so as to contact the edge portion of the. Also,
A circular guide hole 27 is formed so as to penetrate substantially the center of the other connecting piece 15.

Next, between the pair of connecting pieces 14 and 15, the pair of connecting pieces 14 and 15 is centered on the support shaft 23 at the base end.
A cam mechanism 28 that opens and closes the insertion piece portions 20 and 25 of the fifteen in the approaching direction and the separating direction is provided. This cam mechanism 28
Is a cam support shaft 29 projectingly provided on the one coupling piece 14, one cam body 30 provided on the cam support shaft 29 so as to be movable back and forth only in the axial direction, and one cam body 30. And the other cam body 31 rotatably provided on the other coupling piece 15 and
A coil spring 32 that biases the one cam body 30 toward the other cam body 31, and an annular guide body 33 that guides the rotation of the other cam body 31 are configured.

The cam support shaft 29 has a prismatic portion 34 having a quadrangular cross section, and a circular large diameter portion 35 having a diameter larger than that of the prismatic portion 34 at the protruding end of the prismatic portion 34. Has been formed. The base end of the prismatic portion 34 is fitted and fixed in the mounting hole 36 formed in the one connecting piece 14.

Further, the one cam body 30 is formed in a substantially columnar shape, and a fitting hole 37 is formed in the central portion of the cam body 30 so as to be fitted in the prismatic portion 34 of the cam support shaft 29 so as to be movable back and forth only in the axial direction. The base end portion of the fitting hole is located on the side of the one connecting piece 14
An accommodation recess 38 for accommodating the coil spring 32 expanded from 37 is formed. Further, a cam 39 is formed at the tip of the one cam body 30 at the side of the other connecting piece 15 side.

The cam 39 of the one cam body 30 is formed with engaging recesses 40 on both sides of the fitting hole 37 and is positioned between the engaging recesses 40 on both sides. Mating hole
Engagement protrusions 41 are formed on both sides sandwiching 37. Further, on one side of the engaging recesses 40 on both sides, an inclined guide surface 42 continuous with one end of the engaging projections 41 on both sides via an engaging surface 41a is formed. further,
On the other side of the engaging recesses 40 on both sides, a vertical portion 43 is formed, which is continuous with the other end of the engaging protrusions 41 on both sides.

Next, the other cam body 31 is formed in a substantially columnar shape, and is rotatably outward from a guide hole 44 formed in the other connecting piece 15 at the base end thereof. It has a protruding operation protrusion 45, and a polygonal operation portion 46 having an open outer surface is formed at the protruding end of the operation protrusion 45. Further, the other connecting piece is provided on both sides in the middle of the operation protrusion 45.
Support protrusions 47 that support 15 are integrally projected in mutually opposite directions, and support portions that support the other connecting piece 15 of the support protrusions 47 on both sides are formed on the arc-shaped support surface 48. .

Further, a cam 49 is formed at the tip of the other cam body 31 on the side of the one coupling piece 14 side. The cam 49 of the other cam body 31 is formed with engagement protrusions 50 on both sides thereof that engage with the engagement recesses 40 on both sides of the one cam 39, respectively. Engagement recesses 51 that engage with the engagement protrusions 41 on both sides of the one cam 39 are formed on both sides between the portions 50 via the engagement surfaces 51a.

Further, the inclined guide surfaces of the engaging recesses 40 on both sides of the one cam 39 are provided on one side of the engaging protrusions 50 on both sides.
Inclination guide surfaces 52 that engage with 42 are formed respectively, and the other side of the engaging projections 50 on both sides abut the vertical portions 43 of the engaging recesses 40 on both sides of the one cam 39. Vertical portions 53 are formed respectively. Further, the cam 49 of the other cam body 31 is reversely rotated with respect to the cam 39 of the one cam body 30 only from one side to the other side.

The engagement projections 50 on both sides of the other cam 49 are engaged with the engagement recesses 40 on both sides of the one cam 39, and the engagement protrusions 50 on both sides of the one cam 39 are engaged. When the engagement recesses 51 on both sides of the other cam 49 are engaged with the protrusion 41, the support protrusions 47 on both sides are positioned in the width direction of the other connecting piece 15 and the other connecting piece is formed. The engaging projection 21 at the tip of the pair of connecting pieces 14 and 15 that supports 15 is movable in the proximity direction.
Further, when the engaging projections 50 on both sides of the other cam 49, which are disengaged from the engaging recesses 40 on both sides of the one cam 39, engage with the engaging surfaces 41a of the one cam 39, Part of the support protrusion 47 is located in the longitudinal direction of the other connecting piece 15 and the other connecting piece 15
Is supported, and the engaging projections 21 at the tips of the pair of coupling pieces 14 and 15 are opened and held in a separated state.

Next, the coil spring 32 arranged around the cam support shaft 29 is housed in the housing recess 38 of the one cam body 30 fitted to the prismatic portion 34 of the cam support shaft 29. Has been done. Then, the one cam body 30 is constantly urged toward the other cam body 31 by the coil spring 32, and the cam 39 of the one cam body 30 becomes the other cam body 31.
Of the other cam body 31, the other side of the support projections 47 on both sides of the other cam body 31 is supported by the arc-shaped support surface 48 of the other connecting piece 15, the operation projection 45 of the other cam body 31. The other connecting piece
It is rotatably projected outward from the guide holes 44 of the fifteen.

Next, the operation of the above embodiment will be described.

When connecting the other frame body 3 in the left-right direction to the one frame body 2 in the up-down direction, first, the operating projection 45 of the other cam body 31 of the connecting tool 4 is operated to rotate. The support protrusions 47 on both sides of the other cam body 31 are arranged in the width direction of the other connecting piece 15, and the cam 49 of the other cam body 31 is brought into mesh with the cam 39 of the one cam body 30. Engaged.

When the operating projection 45 of the other cam body 31 of the connector 4 is pushed toward the one cam body 30, the other cam body 31 causes the one cam body 30 to move to the coil spring 32. On the contrary, one of the connecting pieces 14 is provided along the prismatic portion 34 of the cam support shaft 29.
Be retracted to the side.

Also, with the operating projection 45 of the other cam body 31 retracted along the guide hole 44 of the other coupling piece 15, this coupling tool 4 is attached to the other frame body 3 from the base end side. When pushed into one end of the hollow portion 12, the operating projection 45 of the other cam body 31 of the connecting tool 4 is pushed into the hollow portion 12 while being supported by the inner wall portion of the other frame body 3.

Then, the operation projection 45 of the other cam body 31.
Is pushed to the position of the guide hole 13 of the other frame 3,
The other cam body 31 is pushed back through the one cam body 30 by the restoring force of the coil spring 32.
The operation projection 45 of the other is projected along the guide hole 44 of the other connecting piece 15, and the operation projection 45 is the guide hole of one end of the other frame body 3.
The connector 4 which is fitted in the housing 13 and is fitted in the one end of the hollow portion 12 of the other frame 3 is held by the operation projection 45, and is connected from one end of the other frame 3 Engagement projections 21 and 26 formed at the tips of the pair of connecting pieces 14 and 15 of the tool 4 are projected outward.

Therefore, the connector 4 is easily fitted and held on one end of the other frame 3 with the tip ends of the pair of connecting pieces 14 and 15 protruding. Further, the connector 4 is simply fitted and held on the other end of the other frame 3 in a state in which the tip ends of the pair of connecting pieces 14 and 15 are projected as in the case described above.

Next, of the first connecting portion 6 and the second connecting portion 7 of the one frame body 2, for example, the first connecting portion 6 of the one frame body 2 and the other frame body 3 are connected. In the case of connecting the one ends, the distal ends of the pair of connecting pieces 14 and 15 of the connecting tool 4 fitted to the one end of the other frame 3 are inserted into the insertion groove 10 of the first connecting portion 6. When inserted, the front inclined portions of the engaging projections 21 and 26 of the pair of connecting pieces 14 and 15 are brought into contact with both edge portions of the insertion groove 10.

Then, when the pair of connecting pieces 14 and 15 of the connecting tool 4 are strongly pushed into the insertion groove 10 of the first connecting portion 6, both edges of the insertion groove 10 resist the coil spring 32. The tips of the pair of connecting pieces 14 and 15 are squeezed toward each other in the proximity direction,
The engaging projections 21 and 26 at the tips of the pair of connecting pieces 14 and 15 pass through both edges of the insertion groove 10 and project into the accommodating recess 8, and the restoring force of the coil spring 32 causes the pair of connecting pieces to connect. Piece
The tips of 14 and 15 are returned in the direction in which they are separated from each other.

Therefore, by pushing the tips of the pair of connecting pieces 14 and 15 of the connecting tool 4 into the insertion groove 10 of the first connecting portion 6, the connection is made in the inserting groove 10 of the first connecting portion 6. The tips of the pair of connecting pieces 14, 15 of the tool 4 are easily inserted.

Next, when the operating portion 46 of the cam mechanism 28 exposed at the side surface of the other frame 3 is rotated from the guide hole 13 of the other frame 3, the other cam body is moved by this operating portion 46. 31 is rotated, and the engaging protrusions on both sides of the cam 49 of the other cam body 31.
While 50 rides from the engaging concave portion 40 of the cam 39 of the one cam body 30 to the engaging surface 41a via the inclined guide surface 42 and is engaged, the supporting protrusions 47 on both sides of the other cam body 31 are formed. The other connecting piece 15 is rotationally displaced from the position in the width direction to the position in the length direction.

Then, the other connecting piece 15 is moved by the supporting projections 47 on both sides of the other cam body 31 in the direction away from the one connecting piece 14, and the base end portion of the other connecting piece 15 is moved. Support shaft 23
Is engaged with the outer end of the guide hole 18 at the base end of one of the connecting pieces 14, and the tips of the pair of connecting pieces 14, 15 are expanded.

When the tip ends of the pair of connecting pieces 14 and 15 are expanded, the rearward inclined portions of the engaging projections 21 and 26 are moved to the first position.
The engaging portions 9a of the connecting portion 6 are engaged with the inner edge portions of the engaging engaging portion 9, and the abutting portions 21a and 26a are pressed against the inner edge portions of the opposing engaging portion 9.

Therefore, by rotating the other cam body 31 with the tip portions of the pair of connecting pieces 14 and 15 inserted into the insertion groove 10 of the first connecting portion 6, the first connecting portion is rotated. The tips of the pair of connecting pieces 14 and 15 are easily held in the engaged state by the engaging pieces 9 facing each other. Then, one end of the other frame 3 is easily connected to the one frame 2 by the connecting tool 4. Further, the case where the other one frame body 2 is connected to the other end portion of the other frame body 3 is similar to the above case.

Next, when one end of the other frame 3 is connected to the second connecting portion 7 of the one frame 2, the other one is connected to the first connecting portion 6 of the one frame 2. By performing the connecting operation in the same manner as the case of connecting the one end of the frame body 3, the one end of the other frame body 3 is easily connected to the second connecting portion 7 of the one frame body 2.

Next, when assembling furniture to be installed in a kitchen or the like using a plurality of vertical frame bodies 2 and a plurality of horizontal frame bodies 3, one of the left side frame bodies 2 arranged on the left and right sides is assembled. First
One end portion of the other frame body 3 in the left-right direction, which is vertically arranged on the upper end portion and the lower end portion of the connecting portion 6, is connected by the connecting tool 4 as in the case of the above-described embodiment, and the right side one frame is connected. A rectangular frame is formed by connecting the upper and lower ends of the first connecting portion 6 of the body 2 to the other ends of the other upper and lower frame bodies 3 by the connecting tools 4 as in the case of the above-described embodiment. It constitutes the body 54.

Further, the rectangular frame bodies 54 are arranged in the front and rear at a predetermined interval, and the front and rear frame bodies 2 located at the left and right portions of the front and rear rectangular frame bodies 54 are connected to each other to face each other. The furniture main body 55 is constructed by connecting both ends of the other frame body 3 which is vertically arranged at the upper end and the lower end of the part 7 by the connecting tools 4 as in the case of the above-described embodiment.

Further, a pair of left and right supporters 56 are connected to each other inside the front and rear frame bodies 2 located on the left and right portions of the furniture main body 55 at predetermined intervals in the vertical direction. Guide rails 57 in the front-rear direction are horizontally supported by a pair of left and right support members 56, which are located above and below, in the front-rear direction. The pair of left and right guide rails 57 are vertically engaged with the left and right edges of the basket 58 for storing the kitchen utensils so that the basket 58 can be taken in and out in the front-rear direction.
Make up 59.

Therefore, a plurality of vertical frame bodies 2,
By connecting a plurality of left and right frame bodies 3 connected to each frame body 2 by a connecting tool 4, the frame bodies 2 and 3 are easily assembled to form furniture 59. Then, by putting the upper and lower baskets 58 in and out, kitchen utensils can be easily stored in and taken out of the baskets 58.

[0046]

According to the first aspect of the present invention, the connecting member is arranged in parallel with each other, supports the base end portion so as to be movable, and has the connecting portion formed at one end on one frame body. And a pair of connecting pieces each having an engaging protrusion that engages with the engaging piece opposite the insertion groove, and an engaging piece that is provided between the pair of connecting pieces and that is opposed to the connecting piece. When mating, the engaging projections of the pair of coupling pieces are movably supported in the proximity direction to each other, and the engaging projections of the pair of coupling pieces are engaged with the opposing engaging piece portions of the coupling section. In this case, the cam mechanism holds the engaging projections of the pair of connecting pieces in an engaged state in which they are separated from each other, so that this connecting tool can easily connect the one frame body to the other frame body. , It is not necessary to mold the connecting part for connecting the other frame body to the one frame body, and the other frame body is temporarily used for one frame body. Therefore, the connecting position of the frame body can be easily adjusted and set, and the furniture body can be easily assembled by connecting these frame bodies. Therefore, a frame body connecting device having excellent workability as a whole can be provided. Can be provided.

According to the second aspect of the present invention, the cam mechanism is provided on one of the connecting pieces so as to be able to move forward and backward, and is disposed on the side of the other connecting piece to form one cam body and the other connecting piece. Another cam body that is movably provided and that is located on the side of the one coupling piece and that engages with the cam of the one cam body, and that advances and retreats by rotation, and that projects from the other cam body. Since the supporting protrusion for supporting the other connecting piece and the operating portion for rotating the other cam body are provided, the pair of connecting portions can be connected by rotating the other cam body with this operating portion. It is possible to easily switch and set the engagement protrusions of the one piece in a mutually movable direction and the engagement protrusion portions of the pair of connecting pieces to the engagement holding state in which they are separated from each other. The engaging protrusions of the pair of connecting pieces can be easily inserted into the insertion groove of the connecting portion. In addition, the engaging protrusions of the pair of connecting pieces can be easily and reliably engaged with the opposite engaging piece portions of the connecting portion of the one frame body, and therefore one frame body can be engaged with the other engaging piece portion. The connecting operation for connecting the frame bodies is easy.

According to the third aspect of the present invention, one of the cam bodies is axially attached to the cam support shaft projectingly provided on the one connecting piece so as to be movable back and forth only in the axial direction, and the spring provided on the cam support shaft. Is always urged toward the other cam body, and the operating portion for rotating the other cam body is rotatably projected at the end portion of the other frame body. It is possible to securely prevent and support the connecting tool fitted to the end of the frame body of
By rotating the operating portion at the end of the other frame, the engaging projections of the pair of connecting pieces can be easily engaged with the opposing engaging pieces of the connecting portion of the one frame. Therefore, the cam of one cam body is always engaged with the cam of the other cam body by the spring, and the switching operation of the pair of connecting pieces by the other cam body can be reliably performed.

[Brief description of drawings]

FIG. 1 is a perspective view of a frame connection device showing an embodiment of the present invention.

FIG. 2 is a side view of the connecting device.

FIG. 3 is a plan view of the same coupling tool.

FIG. 4 is an exploded perspective view of the same cam mechanism.

FIG. 5 is an explanatory view showing a state in which the upper frame bodies are connected to each other.

FIG. 6 is a perspective view showing a state in which the upper frame bodies are connected to each other.

FIG. 7 is a front view of furniture supporting the basket.

FIG. 8 is a transverse plan view of the same.

[Explanation of symbols]

 2 One frame 3 The other frame 4 Coupling tool 6 First coupling part 7 Second coupling part 9 Engaging piece part 10 Insertion groove 14 Coupling piece 15 Coupling piece 21 Engaging projection part 26 Engaging projection part 28 Cam mechanism 29 Cam support shaft 30 One cam body 31 The other cam body 32 Spring 39 Cam 46 Operating part 47 Supporting protrusion 49 Cam

Claims (3)

[Claims] 1. One of the frame bodies is formed with a connecting portion in which opposing engaging piece portions are provided so as to sandwich the insertion groove, and the connecting portion is projected at an end portion of the other frame body connected to the one frame body. The provided connecting members are arranged in parallel to each other, rotatably support the base end portions thereof, and engage the engaging piece portions of the connecting portions of the one frame body which are opposed to each other at the distal end portions thereof. And a pair of connecting pieces each formed with an engaging protrusion, and an engaging protrusion of the pair of connecting pieces when engaged with the engaging piece portions of the connecting portion that are provided between the pair of connecting pieces. Movably in the proximity direction to each other, and when the engaging projections of the pair of connecting pieces are engaged with the opposing engaging piece parts of the connecting portion, the engaging projections of the pair of connecting pieces are mutually A frame connecting device, comprising: a cam mechanism which holds the engagement state in a separated state. 2. A cam mechanism, wherein one cam member is provided on one connecting piece so as to be able to move forward and backward and is located on the other connecting piece side to form a cam, and one cam body is rotatably provided on the other connecting piece. Of the other cam body which is located on the side of the connecting piece and which engages with the cam of the one cam body, and which advances and retreats by rotation, and supports the other connecting piece that is projectingly provided on the other cam body. 2. The frame connecting device according to claim 1, further comprising: a supporting protrusion and an operating portion that pivotally operates the other cam. 3. One cam body is axially attached to a cam support shaft projectingly provided on one of the connecting pieces so as to be able to advance and retreat only in the axial direction, and a spring provided on the cam support shaft attaches to the other cam body. The frame body connection according to claim 2, wherein an operation portion that is always urged toward and that rotates the other cam body is rotatably projected at an end portion of the other frame body. apparatus.