JP2006194436A - Fitting - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a fitting capable of being firmly locked in a fitting groove of the other element. <P>SOLUTION: In this fitting 1 where a locking piece 5 slidable to a side of the other element 4, is mounted in a case portion 3 inserted into one element 2, and locked in the fitting groove 4a of the other element 4 by being slid, thus the elements 2, 4 are connected, the locking piece 5 is composed of two sheets of bases 5a, 5b, and locking projection pieces 6 integrally formed on one end portion side of each of the bases 5a, 5b are expanded to be locked in the fitting groove 4a. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a coupling fitting that detachably couples two members of components such as a partition, a storage frame, and a work table used in a room such as an office or an exhibition hall.

As shown in FIG. 10, as a coupling fitting for detachably coupling two members, a case portion 30 disposed in one member (not shown) and a member provided in the case portion 30 are provided. It consists of a stop piece 31, and this engagement piece 31 is engaged with a coupling groove opened in the longitudinal direction of the other member (not shown), and one and the other two members are detachably coupled. It is.
As a coupling metal fitting having such a configuration, for example, there are inventions described in Patent Documents 1 and 2 below.

JP-A-3-84205 Special Table 2000-515222

As shown in FIG. 11, the locking piece 31 of the coupling fitting described in Patent Document 1 includes two locking protruding pieces 33 that are integrally formed by cutting out the substrate 32. As shown in FIG. 12, the engagement piece 34 of the described fitting is a flat plate body 35 disposed in the case portion, and two pieces of engagement protrusions provided as separate members from the substrate 35. A piece 36 is provided.
The two pieces of locking projections 33 and 36 are respectively deformed in opposite directions, and the distance between the two pieces is widened, so that the front end of the two pieces is locked in the coupling groove of the other member, so that the two members Are coupled, and the interval between the two pieces is returned to the original position, so that the locking of the tip portions of the two locking projection pieces 33 and 36 is released.

Since the protrusion 33 for locking the coupling metal is an elongated member, and when the other member is locked to the coupling groove, it is deformed in the opposite direction to widen the interval, so that stress is applied to the base portion with the substrate. Concentrates, easily breaks, and breaks easily.
Further, the locking protruding piece 36 is a separate member from the substrate 35 and cannot be locked with a strong force, and the locking force to the coupling groove is weak.
For this reason, if the locking projections 33 and 36 are forcibly and strongly deformed so as to be securely locked in the coupling groove, there is a risk of damage, and the coupling may be uncertain.

  This invention is made | formed in view of the said subject, The objective is to provide the coupling metal fitting which can be more firmly latched in the coupling groove | channel of the other member.

In the coupling fitting of the present invention, a locking piece that is slidable on the other member side is disposed in a case portion that is inserted into one member, and the sliding of the locking piece engages with the coupling groove of the other member. In the coupling fitting for joining one member and the other member, the latching piece has two substrates, and is integrally formed on one end of the substrate by sliding the latching piece. The locking protruding piece is widened and locked to the coupling groove.
The above-mentioned joint fitting is bent vertically on the other end side of one substrate to form a bent surface portion having notches on both sides in the vicinity of the bent portion, and is loosely fitted into the notch on the other substrate. A configuration in which a protrusion is formed or a configuration in which a fitting piece is formed on the other end side of one substrate and a fitting hole is formed in the other substrate for loosely fitting the fitting piece. Is preferred.

  In addition, the above-mentioned coupling metal can be slid by rotating a cam portion provided on the other end side of the locking piece, and is engaged by a locking wedge portion disposed between the two substrates. The locking piece can be slid by rotating the cam portion provided on the other end side of the locking piece, or formed on the one end side of the case portion. It is preferable to adopt a configuration in which the locking protruding piece is expanded by the protruding portion protruding inward.

In the coupling metal fitting of the present invention, the latching piece is constituted by two substrates, and latching protrusions for latching to the coupling grooves of other members are integrally formed on both substrates.
As a result, the coupling fitting according to the present invention does not need to be deformed so as to widen the interval between the locking protruding pieces themselves, so that the locking protruding pieces are not easily broken, and the locking protruding pieces are formed integrally with the substrate. Therefore, the locking force of the locking protruding piece to the connecting groove can be increased, and the locked state can be maintained firmly and the connection between the two members can be ensured.

Hereinafter, the present invention will be described based on an exemplary embodiment shown in the drawings.
1-5 is the schematic which shows 1st embodiment of the coupling metal fitting of this invention.
In each figure, reference numeral 1 is a coupling fitting, 2 is one member, 3 is a case portion of the coupling fitting 1, 4 is the other member, 5 is a locking piece, and 6 is a locking protruding piece.

One member 2 in the present embodiment is a horizontal frame member in the frame member, and is simply referred to as “member 2” hereinafter. Further, the other member 4 in the present embodiment is a vertical frame member in the frame member, and is simply referred to as “member 4” hereinafter.
In the description, the arrow X direction shown in FIG. 1 is the length direction, the arrow Y direction is the front-back direction, and the arrow Z direction is the width direction.

  The coupling fitting 1 has a configuration in which a case portion 3 that can be housed and fixed inside a member 2 is provided with a locking piece 5 that can slide in the direction (length direction) on the member 4 side, and a sliding cam 8. The locking piece 5 is slid by the rotation of the sliding cam 8, and is configured to be locked and unlocked with respect to the coupling groove 4a opened in the longitudinal direction of the member 4.

As shown in FIGS. 2 and 3, the locking piece 5 includes two substrates integrally formed with locking protruding pieces 6 (6 a, 6 b) at the end portion on the member 4 side (hereinafter referred to as the front end side). 5a and 5b, and both the substrates 5a and 5b are arranged in the case portion 3 so that the locking projections 6a and 6b on the front end side can be expanded in the front-rear direction.
Both the substrates 5a and 5b are substantially rectangular plate materials having a width and an appropriate length that can be accommodated in the case portion 3, and the widened portion in which the tip side portion is bent and bulged in the front-rear direction as shown in FIG. 5c is formed so as to sandwich a locking wedge portion 3e described later. The rear end portion has both substrates 5a and 5b in contact with each other, and a long hole 5e in the length direction is formed in the surface. A bent surface portion 5d that is bent vertically to the front side (the front surface side in FIG. 1) is formed at the end portion on the rear end side of the substrate 5a, and is cut into a substantially rectangular shape on both sides near the bent portion of the bent surface portion 5d. A notched part 5g is formed. Near the center of the rear end side of the substrate 5b, a bent surface portion 5h that is vertically bent toward the front side is formed, and on both sides of the end portion on the rear end side, it further extends to the rear end side. And the protrusion 5i which bent the front end toward the front side is formed. The protruding portion 5i is loosely fitted in the notch portion 5g, and the both folded curved surface portions 5d and 5h are brought into contact with each other as a contact surface portion 5j. At the front end side of the long hole 5e of the substrate 5a, a facing portion 5f facing the contact surface portion 5j is cut and formed, and is inserted into a substantially rectangular hole formed in the substrate 5b. The slide cam 8 described later can be disposed between the both surface portions 5f and 5j.
On the back side of the substrate 5a (back side in FIG. 1), a spring 7 formed by bending a substantially rectangular plate material is fixed by welding or the like, and the locking piece 5 is urged to the front side. The spring 7 is formed such that the tip side is inclined downward, and the tip is in contact with the back surface 3 d of the case portion 3.

  As shown in FIGS. 2 and 3, the locking projection piece 6 extends from both ends of the substrates 5 a, 5 b so as to be locked in the coupling groove 4 a of the member 4. 6b is formed, and is disposed so as to protrude from the end face of the case portion 3 on the front end side. Both the locking portions 6a and 6b have widths of half or less of the substrates 5a and 5b, respectively, and intersect with the left and right sides in the width direction so as to be alternately left and right symmetrical so as to intersect from the end surfaces on the front end side of both the substrates 5a and 5b. The tip ends are formed in parallel, and both tip portions thereof are formed in parallel. Further, the tip portions are folded back toward the outer side of the front and rear surfaces, respectively, and are formed in a hook shape.

In FIG. 1, the case portion 3 has a side surface 3a on the upper side, a side surface 3b on the lower side, a front surface 3c on the front side, and a back surface 3d on the front side, and is sandwiched between the widened portions 5c on the tip side as shown in FIG. A locking wedge portion 3e is formed between both side surfaces 3a and 3b.
As shown in FIG. 3 or FIG. 4, the locking wedge portion 3e is formed in a substantially wedge shape at the tip end side, and is engaged by the sliding operation of the locking pieces 5 (both substrates 5a and 5b). By press-fitting between the stop portions 6a and 6b, the leading end sides of both the substrates 5a and 5b and the locking protruding piece 6 can be expanded in the width direction.

As shown in FIG. 1, a long hole 3g in the length direction is formed at the rear end side of the side surface 3a so that the bulging cam portion 8c can be rotated without hitting the side surface 3a.
The front end sides of the front surface 3c and the back surface 3d are cut out in a substantially rectangular shape from the end surface side so that they do not come into contact when the front end sides of both the substrates 5a and 5b are expanded.
The rear end side of the front surface 3c is cut out in a tongue-like shape with the inner end surface arcuate from the end surface side to form a cam housing portion 3f so that the head 8b of the slide cam 8 can be accommodated.

In both corners on the inner side of the rear end of the back surface 3c, there are formed mounting portions 3h protruding inward in a substantially rectangular shape, and in the state where the locking protruding piece 6 is locked to the member 4, the locking piece 5 can be placed on the rear end side.
As shown in FIG. 3, a circular hole 3i is formed on the rear end side of the back surface 3c so that the shaft portion 8a of the sliding cam 8 can be supported.

  As shown in FIG. 2, the slide cam 8 includes a columnar shaft portion 8a, a head portion 8b having one end portion bulging concentrically, and a portion of a disk bulging outward from the circumference. And a cam portion 8c having a larger diameter than the head portion 8b integrally formed inside the portion 8b. By rotating the slide cam 8, the locking piece 5 (both substrates 5a and 5b) A slide operation can be performed.

The shaft portion 8a is inserted into the long holes 5e of both the substrates 5a and 5b, and serves as a rotation shaft when the slide cam 8 rotates.
The head 8b has a hexagon wrench hole 8d formed on the top surface thereof, and the slide cam 8 can be rotated using the hexagon wrench. In the present embodiment, the slide cam 8 is formed to rotate with a hexagon wrench, but it may be a plus or minus groove or a hexagon bolt head-like protrusion, and is not limited to this.

  The cam portion 8c is arranged so that the bulging portion comes into contact with the facing portion 5f, rotates with the rotation of the sliding cam 8, and the end surface of the bulging portion of the cam portion 8c is the contacting surface portion 5d or the facing portion. The locking piece 5 (both substrates 5a and 5b) can be slid by coming into contact with 5f.

  Further, as shown in FIG. 3 or FIG. 4, the slide cam 8 is urged to the front side by the spring portion 7, and a part of the head portion 8 b protrudes outward from the front surface 3 c of the case portion 3. It is arranged like this.

  As shown in FIG. 5, the member 2 has a substantially rectangular hollow portion into which the fitting 1 can be inserted, and has an insertion port 2 a on the end surface and an insertion hole 2 b on the side surface. The head 8b of the slide cam 8 can be inserted into the insertion hole 2b by the pressure of the spring portion 7 in a state where the end surface of the member 2 and the end surface of the member 2 are accommodated so as to be substantially flush with each other.

  The member 4 is formed with a coupling groove 4a having a lip groove shape opened in the longitudinal direction, and the engagement protrusion piece 6 is inserted into the opening, and the engagement protrusion piece 6 is expanded to thereby expand the coupling fitting 1. Can be locked to the member 4.

The member 2 and the member 4 can be joined with the fitting 1 as follows.
As shown in FIG. 5, when the fitting 1 is inserted into the insertion port 2 a of the member 2 by pressing the head 8 b and the head 8 b is inserted into the insertion hole 2 b of the member 2, Since the head 8 b is biased so as to protrude outward from the front surface 3 c of the case portion 3, the coupling fitting 1 is fixed to the member 2.
After the coupling fitting 1 is fixed to the member 2, the locking protruding piece 6 is inserted into the opening of the coupling groove 4a of the member 4 as shown in FIG.

Next, a hexagon wrench is inserted into the hexagon wrench hole 8d, and the slide cam 8 is rotated about ½ clockwise in FIG. At this time, the cam portion 8c also rotates, the protruding portion of the cam portion 8c passes through the elongated hole 3g of the case portion 3 and rotates to the rear end side, and the end surface of the protruding portion contacts and abuts the contact surface portion 5d. The piece 5 (both substrates 5a and 5b) is slid to the rear end side.
Due to the sliding movement of the locking pieces 5 (both substrates 5a and 5b), as shown in FIG. 4, the locking wedge portion 3e of the case portion 3 is used to lock the locking pieces 5 (both substrates 5a and 5b). Entering between the projecting pieces 6, widening the front end side of the locking pieces 5 (both substrates 5 a, 5 b), the locking projecting pieces 6 expand in the front and back direction, and are locked in the coupling grooves 4 a of the member 4. To do.

  Moreover, since the rear end side of the locking piece 5 is placed on the placement portion 3h as shown in FIG. 4, the head portion 8b does not move even when pressed.

The release of the connection between the member 2 and the member 4 may be performed in the opposite manner to the above-described connection procedure. The slide cam 8 is rotated about ½ turn in the opposite direction with a hexagon wrench, and the locking piece 5 (both substrates) is removed. 5a, 5b) can be slid to the tip side to release the locking protruding piece 6 from the member 4 and to remove the coupling fitting 1 from the member 4.
Thereafter, the coupling fitting 1 can be removed from the member 2 by pressing the head 8b and pulling the coupling fitting 1 from the distal end side.

  In the coupling fitting 1, since the locking piece 5 is composed of both the substrates 5 a and 5 b, it is difficult to break because the locking protruding piece 6 can be locked to the member 4 without being deformed, and each of the substrates 5 a, Since the locking protruding piece 6 is integrally formed on 5b, the locking force of the locking protruding piece 6 to the connecting groove 4a can be increased, and the two members 2 and 4 can be securely connected. It is.

Next, a second embodiment of the present invention will be described.
In describing the second embodiment, the same components as those in the first embodiment use the same reference numerals and names, and the same description is omitted.

6-9 is the schematic which shows 2nd embodiment of the coupling metal fitting of this invention.
In each figure, reference numeral 11 denotes a coupling fitting, 13 denotes a case portion of the coupling fitting 1, 15 denotes a locking piece, and 16 denotes a locking protruding piece.
In the description, the arrow X direction shown in FIG. 6 is the length direction, the arrow Y direction is the front-back direction, and the arrow Z direction is the width direction.

  The coupling fitting 11 includes a case portion 13 that can be housed and fixed inside the member 2, and a locking piece 15 that can slide in the direction (length direction) on the other member 4 side and a sliding cam 8. The locking piece 15 is slid by the rotation of the sliding cam 8, and is configured to be locked and unlocked with respect to the coupling groove 4a opened in the longitudinal direction of the member 4.

As shown in FIGS. 7 and 8, the locking piece 15 includes two substrates in which locking protrusions 16 (16 a and 16 b) are integrally formed at the end of the member 4 (hereinafter referred to as the front end side). 15a and 15b, both substrates 15a and 15b are arranged in the case portion 13 so that the locking projections 16a and 16b on the front end side can be expanded in the front and back direction.
Both substrates 15a and 15b are substantially rectangular plate materials having a width and an appropriate length that can be accommodated in the case portion 13, with the rear end side being in contact with each other, and a long hole 15c in the longitudinal direction is formed on the surface. It is. A fitting piece 15d protruding from the front side (the front surface side in FIG. 6) is formed at the rear end side of the substrate 15a, and loosely fitted into a fitting hole 15e formed at the rear end side of the substrate 15b. In addition, a facing portion 15f that faces the fitting piece 15d is formed on the front surface on the distal end side of the long hole 15c, and the sliding cam 8 is formed between the fitting piece 15d and the facing portion 15f. Can be arranged.
In the vicinity of the center of the substrate 15a, a spring portion 15g is formed so as to be inclined at the back side, the tip is brought into contact with the inner surface of the case portion 13, and the locking piece 15 is urged toward the front side. It is like that.
The rear end side of the substrate 15b is bent so as to be folded on the front side.

As shown in FIGS. 7 and 8, the locking protrusion 16 extends from both ends of the substrates 15 a and 15 b so that the locking protrusions 16 can be locked in the coupling groove 4 a of the member 4. And is arranged so as to protrude from the end surface of the case portion 13 on the front end side. Both locking portions 16a and 16b are half the width of each of the substrates 15a and 15b, and are folded in opposite directions from the front end sides of both the substrates 15a and 15b so as to be alternately left and right symmetrical in the width direction. Curved and provided with a stepped portion 16c along the surface of a raised portion 13e, which will be described later, and formed into an inclined portion 16d that is narrowed and inclined so as to intersect both the tip portions, and the tip portions are formed in parallel. Further, the tip portions are folded back in the outward direction on the front and back sides to form hooks.
The inclined portion 16d is formed so as to be placed on the raised portion 13e when the locking piece 5 slides to the rear end side.

In FIG. 6, the case portion 13 has a side surface 13a on the upper side, a side surface 13b on the lower side, a front surface 13c on the front side, and a back surface 13d on the back side. As shown in FIG. 8, a protruding portion 13e is formed on the front end side of the case portion 13 so as to protrude inward from the front surface 13c and the back surface 13d. It is formed so as to be symmetrical.
As shown in FIG. 8 or FIG. 9, the raised portion 13e is formed with an inclined front end side, and the inclined portion of the locking protruding piece 16 by the sliding operation of the locking pieces 15 (both substrates 15a, 15b). 16d is mounted so that the front end side of both substrates 15a and 15b and the locking protruding piece 16 can be expanded.

As shown in FIG. 6, a long hole 13g in the length direction is formed on the rear end side of the side surface 13a so that the bulging cam portion 8 can be rotated without hitting the side surface 13a.
A circular hole 13h is formed on the rear end side of the side surface 13a and the side surface 13b. A pin 13i is inserted through the circular hole 13h, spanned between the side surfaces 13a and 13b, and the locking protruding piece 16 is locked to the member 4. In this state, the rear end side of the locking piece 15 can be placed on the peripheral surface of the pin 13i.

On the rear end side of the front face 13c, the inner end face from the end face side is arc-shaped and cut out in a tongue-like shape, and further inwardly cut out in a substantially rectangular shape to form a cam storage portion 13f. The head 8b is accommodated.
The front end sides of the front surface 13c and the back surface 13d are cut out in a substantially rectangular shape from the end surface side so that they do not come into contact when the locking piece 15 is expanded.
As shown in FIG. 8, a circular hole 13j is formed on the rear end side of the back surface 13d so that the shaft portion 8a of the sliding cam 8 can be supported.

  The slide cam 8 has the same configuration as that described in the first embodiment, and is arranged so that the bulging portion of the cam portion 8c contacts the facing portion 15f.

  By rotating the sliding cam 8, the end surface of the bulging portion of the cam portion 8c can come into contact with the fitting piece 15d or the facing portion 15f, and the locking piece 15 can be slid.

  Further, as shown in FIG. 8 or FIG. 9, the slide cam 8 is urged to the front side by a spring portion 15g, and a part of the head portion 8b is outward from the side surface 13c of the case portion 13. It is arranged so as to protrude.

  The member 2 and the member 4 can have the same configuration as that described in the first embodiment.

  The joining and release of the member 2 and the member 4 with the joint fitting 11 can be performed as shown in the first embodiment.

  In the present embodiment, by the sliding operation of the locking piece 15 (both substrates 15a and 15b), the inclined portion 16c of the locking protruding piece 16 is placed on the raised portion 13e of the case portion 13 as shown in FIG. Then, the front end side of the locking piece 15 (both substrates 15a and 15b) is widened, and the locking protruding piece 6 is expanded in the width direction and locked in the coupling groove 4a of the member 4.

  In the coupling metal 11, since the locking piece 15 is composed of both the boards 15 a and 15 b, it is difficult to break because the locking protruding piece 16 can be locked to the member 4 without being deformed, and each board 15 a, Since the locking protruding piece 16 is integrally formed on 15b, the locking force of the locking protruding piece 16 with respect to the coupling groove 4a can be increased, and the coupling of the two members 2 and 4 can be ensured. is there.

  In addition, since both the boards 15a and 15b of the coupling metal 11 are connected by loosely fitting the fitting pieces 15d into the fitting holes 15e, stress concentrates on the rear end side, hardly deforms, and is strong. It can be locked.

It is a schematic perspective view of 1st embodiment of the coupling metal fitting of this invention. It is a schematic perspective view which shows the latching piece and the slide cam which are the components of the coupling metal fitting of FIG. It is a schematic sectional drawing which shows the state which inserted the latching locking protrusion piece in the coupling groove of the other member of the coupling metal fitting of FIG. It is a schematic sectional drawing which shows the state which latched the coupling metal fitting of FIG. 1 to the other member. It is a schematic perspective view which shows the state before the coupling | bonding of one member (horizontal frame member) and the other member (vertical frame member) using the coupling metal fitting of FIG. It is a schematic perspective view of 2nd embodiment of the coupling metal fitting of this invention. It is a schematic perspective view which shows the locking piece and the slide cam which are the components of the coupling metal fitting of FIG. It is a schematic sectional drawing which shows the state which inserted the latching latching protrusion piece in the coupling groove of the other member of the coupling metal fitting of FIG. The state which latched the coupling metal fitting of FIG. 6 to the other member is shown, (A) is a schematic sectional drawing, (B) is the elements on larger scale. It is a schematic front view which shows the conventional coupling metal fitting. It is a schematic perspective view which shows an example of the latching piece of the conventional coupling metal fitting. It is a schematic perspective view which shows the other example of the latching piece of the conventional coupling metal fitting.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1,11 Coupling metal fitting 2 One member 3,13 Case part 4 The other member 4a Coupling groove 5,15 Locking piece 5a, 15a Substrate 5b, 15b Substrate 15d Fitting piece 15e Fitting hole 6,16 For locking Protruding piece

Claims (5)

A locking piece slidable on the other member side is disposed in the case portion to be inserted into one member, and the sliding piece is locked in the coupling groove of the other member, In the fitting that joins the other member,
A configuration in which the locking piece has two substrates, and the locking protruding piece that is integrally formed on one end of the substrate is expanded and locked in the coupling groove by sliding the locking piece. A coupling fitting characterized by being as follows.   One substrate is bent vertically at the other end, a bent surface portion is formed with notches on both sides near the bent portion, and a protrusion is formed on the other substrate that fits loosely into the notch. The coupling fitting according to claim 1.   The fitting according to claim 1, wherein a fitting piece is formed on the other end portion side of one of the substrates, and a fitting hole for loosely fitting the fitting piece is formed on the other substrate.   The locking piece can be slid by rotating the cam part provided on the other end side of the locking piece, and the locking protruding piece is expanded by the locking wedge part disposed between the two substrates. The coupling fitting according to any one of claims 1 to 3, wherein the fitting is configured to perform.   The locking piece can be slid by rotating the cam part provided on the other end side of the locking piece, and the locking protrusion is projected by the inwardly raised ridge formed on the one end side of the case part. The coupling fitting according to any one of claims 1 to 3, wherein the piece is configured to expand.

Images