JPH07317730A - Rod-like material end attaching tool - Google Patents

Abstract

PURPOSE:To facilitate attachment/detachment to/from a rod-like material end, so as to eliminate the possibility of dropping by attachably/detachably engaging an engaging member with a main body through a process of rotating the rod-like body after fitting a locking flap of the engaging member into a fitting part. CONSTITUTION:After an attaching part 11 is fixed on a fixing surface 9, engaging members 8a, 8B fixed on respective pipes 2, 3 are inserted into engaging holes 12 faced to each other, and locking flaps 25, 25 of the engaging members 8A, 8B are fitted and inserted between engaging pieces 19, 19 of main bodies 7, so as to bring respective outer end wall outer surfaces 24A of the engaging members 8A, 8B into contact with the inner end surfaces of the locking pieces 19. Both pipes 2, 3 are rotated in the direction of an arrow mark provided on collar parts 21 of respective engaging members 8A, 8B, so as to bring positioning stoppers 28 into contact with the ends in the circumferential direction of the locking pieces 19 of the main bodies 7. At this time, the locking pieces 19 are pinched by the wedge effect of an inclined surface of the locking pieces 25 from both side in the axial direction and locked and fixed, thereby the rod-like material 1 is not dropped caused by slipping off of the locking members 8A, 8B from the main bodies 7.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fixture for fixing an end of a stretchable rod-shaped member such as a pipe or a solid rod having a circular, square or other cross-sectional shape to a fixed surface such as a wall surface or a top plate. .

[0002]

2. Description of the Related Art Heretofore, as this kind of rod-shaped end fitting, for example, a fitting such as a pipe described in Japanese Utility Model Publication No. 4-14662 or a hanger pipe mounting structure described in Japanese Utility Model Publication No. 5-76335. It has been known. The former installation tool is a pedestal member that is fixed to the opposing wall surface with screws or the like,
The fitting member is fixed to the outer end of the pipe, and the fitting locking recess is provided in the end surface of the pedestal member in the direction orthogonal to the axial direction, and the fitting locking projection is axially formed in the end surface of the other coupling member. It is provided in a direction orthogonal to and the fitting projection is fitted into and engaged with the recess.

In the latter hanger pipe mounting structure, a pipe fitting projection is provided at a lower portion of a side piece portion having a fixing piece to the ceiling wall surface at an upper end to form a mounting bracket, and the projection is attached to the outside of the pipe. The end is fitted and fixed by a fixing pin.

[0004]

By the way, in the former of the above-mentioned prior arts, the former can be mounted only on the opposite wall surface, and in the case where an object hits the pipe, there is a fear that the coupling member may come out of the pedestal member. However, there is a problem that the coupling member cannot be fitted and engaged unless the pedestal member is correctly attached.

Further, in the latter case, since the pin hole at the end of the pipe and the pin hole at the projection for fitting the pipe are aligned and then fixed by the fixing pin, the work is troublesome. The present invention has been made in view of the above situation, and an object thereof is a pipe or the like that can be easily attached to and detached from a fixed surface of an end portion of a rod-shaped material, and is not likely to be easily dropped. To provide a bar end fitting.

[0006]

In order to achieve the above object, the present invention takes the following technical means. That is,
The present invention relates to a fixture for attaching an outer end of a stretchable rod-shaped member to a fixed surface, a fixture body fixed to the fixed surface by the fixture, and a fixture fixed to the outer end of the rod-shaped member. The main body and the engaging member are provided with engaging pieces that engage with each other to prevent the rod-shaped material from moving in the axial direction, and the main body has the engaging member in the form of a rod. An engaging hole that is rotatably engaged around the axis of the material and an engaging piece fitting portion into which the engaging piece of the engaging member is fitted are provided, and the engaging member is engaged with the engaging portion. It is characterized in that after the pieces are fitted together, the rod-shaped member is rotated to detachably engage the engagement piece of the engagement member with the engagement piece of the main body.

Further, according to the present invention, at least one of the main body and the engaging member is engaged with the engaging piece of the main body and the engaging piece of the engaging member by rotating the rod member with respect to the main body. It is characterized in that it is provided with a positioning stopper that comes into contact with the other in order to regulate the rotation when it is turned on. Further, in the present invention, at least one of the locking piece of the main body and the locking piece of the engaging member has a rod-shaped axial locking surface that is an inclined surface that rises rearward from the front end in the engaging rotation direction. It is characterized by

[0008]

According to the present invention, the fixture main body is fixed to a desired position on the fixing surface with a fixture such as a screw, and the engaging members are fixed to both outer ends of the expandable rod-like member with an adhesive or the like. The locking piece of the engaging member is fitted into the locking piece fitting portion of the main body and rotated by a predetermined angle, whereby the locking piece of the engaging member is engaged with the locking piece of the main body, Installation is completed. In this attachment completed state, it is not necessary to fix the expansion / contraction portion of the rod-shaped member, and further, even if an impact is applied to the rod-shaped member, the rod-shaped member does not rotate, so that the rod-shaped member does not easily fall off.

Further, according to the present invention, since the stopper is provided and at least one of the locking pieces is provided with a wedge function by inclining the axial end surface thereof, the locking piece of the engaging member is the main body. The rod-shaped member is locked by the side locking pieces to restrain the rotation of the rod-shaped member, the rod-shaped member does not rotate carelessly, and the falling-off can be reliably prevented.

[0010]

Embodiments of the present invention will be described below with reference to the drawings. 1 to 15, the rod-shaped member 1 is configured to be expandable and contractable by an inner pipe 2 and an outer pipe 3. The rod-shaped member end fitting 4 according to the embodiment of the present invention includes a fitting body 7 fixed to a fixing surface 9 (ceiling surface in this embodiment) with a fixing screw 6 (fixing member), and an outer end of the rod-shaped member 1. Part, that is, the engaging member 8 fixed to the pipe outer ends 2A and 3A. Each pipe 2, 3 and the engaging member 8
It is preferable that, for example, the outer ends 2A and 3A of the pipes are fitted to the engaging member 8 and adhered by an adhesive agent.

As shown in FIGS. 1 to 8, the attachment main body 7 has a first attachment portion 10 which can be attached to a fixed surface 9 (ceiling surface).
And a second mounting portion 11 which is integrally formed with the first mounting portion 10 and can be mounted on another fixed surface (for example, a side wall surface) orthogonal to the fixed surface 9. Both the first attachment portion 10 and the second attachment portion 11 may be attached and fixed to the fixing surface, or only the first attachment portion 10 may be attached and fixed to the fixing surface 9.

An engagement member fitting engagement portion 13 is integrally provided on the tip end side of the first mounting portion 10. This fitting engagement portion 1
An engagement hole 12 having an axis parallel to the fixed surface 9 is formed in the hole 3. Further, each of the mounting portions 10 and 11 is provided with fixing screw insertion holes 14 and 15, respectively.
The mounting surfaces 10A and 11A that contact the fixed surface 9 of 11 are
A plurality of recessed grooves 16 and 17 are provided respectively, and the area in contact with the fixed surface 9 is reduced so that it can easily follow the fixed surface 9 and the weight is reduced.

The engaging hole 12 has a large-diameter circular shape on the insertion side of the engaging member 8 and is located on the end edge side of the mounting portion 11, and the opening on the opposite side is engaged with the engaging piece of the engaging member 8. And a substantially fan-shaped locking piece 19 is formed on the axially inner end step wall 12A of the fitting portion 18 symmetrically from the center of the engagement hole 12 and closer than the inner peripheral surface of the fitting portion 18. It is provided in a protruding shape on the center side of the dowel hole 12. Further, at the insertion side end of the engaging portion 13,
Corresponding to the center line of the fixing screw insertion hole 15, a notch 20 for inserting a screw turning tool (for example, a driver) is provided.

As shown in FIGS. 1, 2, and 9 to 13, the engaging member 8 is of a cylindrical shape in which one end in the axial direction which can be fitted onto each of the pipe outer ends 2A and 3A is closed. A flange portion 21 is formed on the outer periphery of the opposing inner end side, and an arrow 22 indicating the engaging rotation direction of the engaging member 8 is provided on the outer peripheral surface of the flange portion, and the inner diameter of the pipe insertion hole 23 is the inner pipe 2. And outer pipe 3
There are two types of sizes that can be inserted. That is, the engaging member 8 is composed of an inner pipe 8A and an outer pipe 8B, but the structure is exactly the same, only the pipe insertion hole diameter is different so that the main body 7 can be fitted and engaged, and the other members are the same. It is a dimension.

The outer diameter of the engaging member 8 is slightly smaller than the diameter of the engaging hole 12 of the main body 7 for absorbing the misalignment, and can be loosely fitted to the outer wall of the axial outer end wall 24. As shown in FIG. 9, on the end face, a cylindrical locking member having locking members 25, 25 fitted between the locking members 19, 19 of the main body 7 symmetrically projecting from the center on the outer peripheral surface. The portion 26 is provided and the locking portion 26 is provided.
A fitting engagement peripheral groove 27 of the locking piece 19 is formed between the outer periphery of the locking wall 25 and the outer surface 24A of the wall and the locking piece 25. A positioning stopper 28 is provided on the outer peripheral surface 26A of the locking portion 26 at the position.

Further, the outer wall surface 24A of the locking piece 25.
The side locking surface 25A is a gently inclined surface in which the axial thickness gradually increases from the front end in the rotational direction toward the stopper 28 at the rear end, and a wedge effect is provided between the contact surfaces of the locking pieces 19. It happens. In addition, in the outer end wall 24,
The fan-shaped hole 29 provided corresponding to the locking piece 25 is a die-cutting hole for molding.

The engaging member 8A for the inner pipe 2 is
As shown in FIGS. 14 and 15, a large number of protrusions 30 extending in the axial direction can be provided on the outer peripheral surface of the outer peripheral surface to reduce the weight (material saving). In the above embodiment, when the rod-shaped member 1 is attached to the same fixed surface 9 such as a wall surface, first, the outer ends 2A and 3A of the pipes 2 and 3 are coated with an adhesive, and then the engaging members 8A and 8B are respectively attached. As shown in FIG. 1, it is externally fitted and adhesively fixed. The fitting part of both pipes 2 and 3 is
Since it is expandable and contractible and has no fixing means, it is not necessary to consider the mounting direction of the engaging member 8.

Next, at a desired mounting position of the fixing surface 9, as shown in FIG.
As shown in, attach the mounting surface 11A of the mounting portion 11,
Insert the fixing screw 6 from the fixing screw insertion hole 15 to fix the fixing surface 9
After the fixture body 7 is fixed to the pipes so that the engagement holes 12 face each other, the engagement members 8A and 8B are fixed to the pipes 2 and 3, respectively.
Are inserted into the engaging holes 12 facing each other, and the engaging pieces 25, 25 of the engaging members 8A, 8B are inserted between the engaging pieces 19, 19 of the main body 7.
Is fitted and inserted, and the engaging members 8A, 8
The outer surface 24A of each outer end wall of B is brought into contact.

Subsequently, the pipes 2 and 3 are connected to the engaging members 8 respectively.
The positioning stopper 28 provided on the outer peripheral surface 26A of the engaging portion 26 is brought into contact with the circumferential end of the engaging piece 19 of the main body 7 by rotating in the direction of the arrow 22 provided on the collar portion 21 of A and 8B. . At this time, due to the wedge effect of the slanted surface 25A of the locking piece 25, the locking piece 19 is brought into contact with the wall outer surface 24A and the locking piece 25.
Since it is sandwiched from both sides in the axial direction by the inclined surface 25A and is locked and fixed, the engaging members 8A and 8B do not rotate carelessly due to a shock or the like, and the engaging members 8A and 8B are not locked by the main body 7. The rod-shaped member 1 does not fall off from it.

When the rod-shaped member 1 is to be removed from the fixture body 7, the pipes 2 and 3 can be easily removed by rotating the pipes 2 and 3 in the directions opposite to the arrows 22 of the engaging members 8A and 8B and pulling them out. . In the above embodiment, when the rod-shaped material 1 is attached to the facing vertical or horizontal fixed surface so that the rod-shaped material 1 is orthogonal to the fixed surface, the attachment portion 10 of the attachment body 7 is used. Can be installed.

The present invention is not limited to the above embodiments, but can be modified in design as appropriate. For example, the contact surface of the locking piece 19 with the locking piece 25 may be an inclined surface to provide a wedge function, and a stopper 28 may also be provided in the locking piece fitting hole 18 on the attachment body 7 side. it can.

[0022]

As described above, the present invention is a fixture for attaching the outer end of a stretchable rod-shaped member to a fixed surface, and a fixture body fixed to the fixed surface by the fixture.
An engaging member fixed to the outer end of the rod-shaped member, and the main body and the engaging member are provided with engaging pieces that engage with each other to prevent the rod-shaped member from moving in the axial direction. ,
The main body is provided with an engagement hole into which an engagement member is rotatably rotatable about an axis of a rod-shaped member, and an engagement piece fitting portion into which an engagement piece of the engagement member is fitted, After the locking piece of the engaging member is fitted into the fitting portion, the rod-shaped material is rotated so that the locking piece of the engaging member is detachably engaged with the locking piece of the main body. The ends can be easily attached to and detached from the fixing surface, and the fixing pins used in the past are not required.There is no fear that the rod will accidentally fall off even if it receives an impact. It is unnecessary.

According to the present invention, the locking piece of the main body and the locking piece of the engaging member are engaged with at least one of the main body and the engaging member by rotating a rod-shaped member with respect to the main body. Since there is a positioning stopper that comes into contact with the other in order to regulate rotation when locked, locking positioning can be done reliably,
It can be prevented from falling off. Furthermore, the present invention is characterized in that the rod-shaped material axial locking surface of at least one of the locking pieces of the main body and the engaging member is an inclined surface that rises rearward from the tip in the engaging rotation direction. Because it does
By the wedge effect, both locking pieces can be firmly clamped and fixed,
The engagement member does not rotate inadvertently in the disengagement direction, and the rod-shaped member can be completely prevented from falling off.

[Brief description of drawings]

FIG. 1 is an exploded perspective view showing an embodiment of the present invention.

FIG. 2 is a partially cutaway enlarged front view of the embodiment.

FIG. 3 is a side view of the inside of the fixture main body of the embodiment facing each other.

FIG. 4 is a side view of an outer side of the attachment body facing each other.

FIG. 5 is a top view of FIG.

6 is a cross-sectional view taken along the line AA of FIG.

7 is a sectional view taken along line BB of FIG.

8 is a cross-sectional view taken along line CC of FIG.

FIG. 9 is a side view of the outer end of the engaging portion of the embodiment.

FIG. 10 is a cross-sectional view taken along the line DD of FIG.

11 is a cross-sectional view taken along the line EE of FIG.

12 is a sectional view taken along the line FF of FIG.

13 is a left side view of FIG.

FIG. 14 is a partially cutaway front view showing another embodiment of the inner pipe engaging portion in the embodiment.

FIG. 15 is a right side view of FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Rod-shaped material 2 Inner pipe 2A Outer end part 3 Outer pipe 3A Outer end part 4 Mounting tool 6 Fixing screw 7 Mounting tool body 8 Engaging member 8A Engaging member 8B Engaging member 9 Fixing surface 12 Engaging hole 18 Engaging piece fitting Joint part 19 Locking piece 25A Locking surface 28 Stopper

Claims (3)

[Claims] 1. An outer end portion (2) of a stretchable rod-shaped member (1).
A, 3A) is a fixture for attaching to the fixed surface (9), the fixture body (7) fixed to the fixed surface (9) by the fixture (6), and the outer end of the rod-shaped member (1). Department (2A, 3A)
And an engaging member (8) fixedly attached to the main body (7) and the engaging member (8) so as to prevent the rod-shaped member (1) from moving in the axial direction. Locking piece (1
9, 25), an engaging hole (12) in which the engaging member (8) is rotatably engaged with the main body (7) so as to be rotatable around the axis of the rod-shaped member (1), and an engaging member. Locking piece (2) of (8)
5) is fitted with a locking piece fitting part (18), and after the locking piece (25) of the engaging member (8) is fitted into the fitting part (18), a rod-shaped material ( 1) The bar-shaped material end portion is characterized in that the locking piece (25) of the engaging member (8) is detachably engaged with the locking piece (19) of the main body (7) by rotating 1). Fixture. 2. A locking piece (19) for the main body (1) by rotating a rod-shaped member (1) with respect to the main body (7) on at least one of the main body (7) and the engaging member (8). ) And the locking piece (25) of the engaging member (8) are engaged with each other, and a positioning stopper (28) is provided which comes into contact with the other in order to regulate the rotation. An end fitting for a rod-shaped material as described in. 3. The rod-shaped axial locking surface (25A) of at least one of the locking piece (19) of the main body (7) and the locking piece (25) of the engaging member (8) is engaged. The rod-shaped member end fitting according to claim 1 or 2, which has an inclined surface that rises rearward from the tip in the combined rotation direction.