JPH0953618A - Fixing member - Google Patents

Abstract

PROBLEM TO BE SOLVED: To apply a thin fixed material, and disassemble and assemble members with constant fastening force without necessity of a tool and without a complicated operation method such as fixation of a screw. SOLUTION: A fixing member 1 is formed in such a constitution that a column shaped supporting part 3 which is narrower than a disk handle part 2 which is rotated by picking up it with fingers is hung on the handle part 2, and a fastening part 4 is detachably installed on a plurality of fixing holes 15 which are arranged in axial transverse direction to the supporting part 3. The fastening part 4 is formed in a sector shape, it is formed in a slant shape 6 whose thickness is the maximum level at a center part, a holding part 7 having elasticity is arranged in the vicinity of the center part, and a rib shaped stopping part 11 is arranged on the top end of the slant surface shape 6. When the supporting part 3 of the fixing member 1 and the fastening part 4 are inserted on fastening ports 14 of fixed materials 12, 13, and the handle part 2 is rotated clockwise, side surfaces of the fixed materials 12, 13 are push- pressed, the fixing member 1 is fastening fixed between the handle parts 2 and the surfaces of the fixed materials 12, 13 by elastic force of the holding part 7 of the fastening part 4 and the slant surface shape 6.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure of a fixing member for fixing and fixing members such as screws.

[0002]

2. Description of the Related Art In an apparatus manufactured by integrating various members into a product, it is usual that a plurality of members are always combined and fixed or fixed. Moreover, most of them are generally considered to be decomposed. A screw is given as one of the typical fixing members for realizing this, and the fixing method using this screw has reached the present with almost no improvement in the past.

[0003]

The greatest drawback of the conventional fixing method using screws is that any one of the fixing members is
It requires tapping work. Therefore, in the case of a relatively large shape, when rotating and fixing by hand without using a jig such as a screwdriver,
It suffered the following drawbacks.

First of all, if the thickness of the fixing member is thin, tapping work cannot be performed. In order to achieve this, the screw portion must be replenished to a constant thickness so that tapping is sufficiently possible. Second, the final tightening position (the position where rotation stops) when tightening by hand varies depending on the person who tightens it.
The other is the troublesomeness of rotating the screw a number of times until the tightening is completed.

The object of the present invention is to eliminate such drawbacks in the prior art, and even a fixing member having a small thickness can be used as it is, and the fixing operation method does not have to be repeated many times. Moreover, it is an object of the present invention to provide a structure of a fixing member that detachably fixes and fixes members to each other with a constant fastening force without using a tool or the like.

[0006]

A fixing member according to the present invention comprises a disc-shaped knob portion which is pinched and rotated by a finger, and a columnar shape which is vertically provided in a continuous manner with the disc-shaped portion and has a diameter smaller than that of the knob portion. And a hole formed in the support part at a right angle to the axial direction and provided at several positions in the axial direction,
A fastening portion detachably attached to the hole, and at least one object to be fastened between the knob portion and the fastening portion are provided, and the fastening portion is plate-shaped and fan-shaped. Is formed and has a slanted surface having a large thickness in the central portion, and has a resilient holding portion in the vicinity of the central portion, and a rib-like member provided at the tip of the portion thickened by the slanted surface. It has a stop portion and a locking portion extending in the central direction of the fan shape so as to be attached to and detached from the hole, and the fixed object has a circular hole corresponding to the shape of the support portion and this. When a fan-shaped hole corresponding to the shape of the fastening portion is formed in a row, and when the support portion and the fastening portion are inserted into the circular holes and the fan-shaped hole of the fixed object and rotated, The pressure on the surface of the fixed object due to the elasticity of the slope and the holding part Ri obtain a predetermined fastening force between the knob portion and the fastening portion, also aims to certain of the rotary tightening angle of the fastening portion by the braking of the rotation by the stop,
Further, by changing the mounting position of the fastening portion in any of the several holes, the fastening force can be secured in accordance with the thickness of the fixed object.

In this fixing member, the hole may be a square hole and the locking portion may be a substantially square rod shape, or the hole may be a round hole and the locking portion may be a substantially round rod shape. Good.

The fastening portion is formed by resin molding, and the circular hole and the fan-shaped hole of the fixed object are punched.

[0009]

Next, the present invention will be described with reference to the drawings.

FIG. 1 is a perspective view of a fixing member and an object to be fixed showing an embodiment of the present invention, FIG. 2 is a perspective view of a fastening portion which is a part of the fixing member, and FIG. 3 is a main portion of the fixing member. FIG. 6 is a cross-sectional view showing an assembled state of FIG.

FIG. 1 shows a fixing member 1 according to an embodiment of the present invention, the main part of which is composed of a knob portion 2, a support portion 3 and a fastening portion 4, and between the knob portion 2 and the fastening portion 4. The two plate-shaped fixed objects 12 and 13 are fastened to each other. As is clear from the figure, the knob portion 2 has a disk shape, and a knurl 5 is provided around the knob portion 2 so that the knob portion 2 can be easily gripped and rotated by a finger. The support portion 3, which is vertically extended from the disk-shaped center of the knob portion 2, has a columnar shape having a diameter smaller than that of the outer shape of the knob portion 2.

Next, for the fastening portion 4, a cylindrical support portion 3
It is removably attached in the direction of the central axis, but the details of that portion will be described later, and the shape of the fastening portion 4 will be described in detail.

The fastening portion 4 is formed in a fan shape as a whole as a plate, but has a sloped shape 6 having a large thickness in the central portion when viewed from the plate thickness direction, and further in the vicinity of the central portion of the fan shape. A holding portion 7 having elasticity is provided in the. Holder 7
Is a part of the arm 9 that is independently separated by the two grooves 8,
It is formed of a protrusion-shaped pressing portion 10 provided at the tip of the arm 9. The pressing portion 10 has elasticity by the arm 9 and can be displaced in the plate thickness direction of the fastening portion 4.

Due to the elasticity of the pressing portion 10, the objects 12, 1 to be fixed are made clear, as will be apparent from the detailed description at the time of fixing described later.
It has the function of exerting a certain fastening force with respect to 3.
Therefore, it is needless to say that the length, thickness, etc. of the arm 9 should be thoroughly examined and made into an appropriate shape in consideration of the material and the like, but the material of the entire fastening portion 4 is resin mold. Is preferably used. Further, a stop portion 11 protruding like a rib is provided at the tip of the portion thickened by the sloped shape 6.

On the other hand, the fixed object 12, 13 has a circular hole 1 corresponding to the cylindrical outer shape of the support portion 3 of the fixing member 1.
A fastening port 14 is provided which is composed of 4a and a hole 14b which is continuous with the 4a and which corresponds to the sectoral shape of the fastening portion 4. The fastening opening 14 having such a shape is used for the fixed object 12,
It is possible to form 13 by punching, and thus it can be easily provided without problems in terms of manufacturing and cost.

By inserting the support portion 3 and the fastening portion 4 of the fixing member 1 into the fastening opening 14 and rotating them counterclockwise, the sloped portion 6 of the fastening portion 4 is fixed to the fixed objects 12, 13.
It rotates while moving along the side surface of the plate, and finally, the stop portion 11 comes into contact with the stopper wall 14c of the fastening port 14 to stop. In this state, since the sloped shape 6 of the fastening portion 4 and the pressing portion 10 push the side surfaces of the fixed objects 12 and 13 toward the side of the knob portion 2, a constant fastening force can be obtained. .

Next, the portion where the fastening portion 4 is detachably attached in the central axis direction of the support portion 3 will be described. 2 shows a state in which the fastening portion 4 is removed, and FIG. 3 shows a state in which the fastening portion 4 is fixed to the support portion 3. As is clear from the figure, the support portion 3 is provided with fixing holes 15 in the shape of a square hole that are penetrated and opened in the central axis direction at a plurality of positions in the axial direction of the support portion 3, Correspondingly, the fastening portion 4 is provided with a square rod-shaped fixed shaft 16 as a locking portion that is attached and detached so as to extend toward the center of the fan shape.

At the tip of the fixed shaft 16, there is provided an elastic hook 18 having a claw portion 17 and displaced inward.
At the tip of the fixing hole 15, there is formed a receiving portion 19 in the shape of a square hole that is slightly larger so that the claw portions 17 and 18 can be fixed without protruding from the shaft diameter of the supporting portion 3. Therefore, when such a snap-fit claw portion 17 and hook 18 are pressed against the fixing hole 15 and pushed in, the claw portion 17 and the hook 18 are locked to the receiving portion 19 by their elasticity,
It is automatically fixed to the support portion 3.

The insertion position of the fastening portion 4 with respect to the support portion 3 is
Corresponding to changes in the thickness of the fixed objects 12 and 13, if they are fixed by changing their positions in any of the plurality of fixing holes 15,
The fixed objects 12 and 13 having different thicknesses can be fixed under the same conditions. In this case, even if there is an error in that the plate thicknesses of the objects to be fixed 12 and 13 and the positions of the fixing holes 15 are slightly rattled, the plate thicknesses of the fixing members 12 and 13 can be changed due to the elasticity of the arm 9 and the pressing unit 10. Can absorb the difference.

When the fastening portion 4 fixed to the fixing hole 15 of the support portion 3 is to be removed as necessary by changing its position, a simple tool (pliers or the like) is used to hook 1.
It is possible to remove by grasping 8 and releasing the locking of the claw portion 17 to the receiving portion 19.

In the above-described embodiment, the fixing hole 15 of the support portion 3 is a square hole, and the fixing portion such as the fixed shaft 16 extending from the fastening portion 4 is a square rod. Without being limited to this, these shapes may be round holes and round bar shapes.

[0022]

As described above, according to the present invention, the elastic support portion and the fan-shaped fastening portion having the inclined surface are detachably fixed to the shaft support portion of the knob portion rotated by the finger, and the knob portion side. By fixing the fixed object by the elasticity of the fastening section between the fastening section and the fastening section, it is possible to disassemble and assemble without any screws or tools, and even for thin fixed articles. It can be applied and has an effect that the disassembling and assembling work can be simplified.

[Brief description of drawings]

FIG. 1 is a perspective view of a fixing member and an object to be fixed, showing an embodiment of the present invention.

FIG. 2 is a perspective view of a fastening portion that is a part of the fixing member according to the embodiment of the present invention.

FIG. 3 is a cross-sectional view showing an assembled state of main parts of a fixing member according to the embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Fixing member 2 Knob part 3 Supporting part 4 Fastening part 5 Knurling 6 Slope shape 7 Holding part 8 Groove 9 Arm 10 Pressing part 11 Stopping part 12, 13 Fixed object 14 Fastening hole 15 Fixing hole 16 Fixing shaft 17 Claw part 18 Hook 19 Receiver

Claims (5)

[Claims] 1. A disc-shaped knob portion that is picked up and rotated by a finger, a columnar support portion that is vertically provided in a continuous manner with the disc-shaped portion and has a diameter smaller than that of the knob portion, and a shaft for the support portion At least a hole which is opened at a right angle to the direction and which is provided at several positions in the axial direction thereof, a fastening portion which is detachably attached to the hole, and which is fastened and fastened between the knob portion and the fastening portion. The fastening portion is formed to have a plate-like, fan-like shape and an inclined surface such that the central portion has a large thickness, and the elastic portion is provided near the central portion. A holding portion, a rib-shaped stop portion provided at the tip of a portion thickened by the slope, and a locking portion extending toward the center of the fan shape so as to be attached to and detached from the hole. The fixed object has a circular hole corresponding to the shape of the supporting portion and When a fan-shaped hole corresponding to the shape of the fastening portion is formed in succession, the support portion and the fastening portion are inserted into the circular hole and the fan-shaped hole of the fixed object and rotated. , A predetermined fastening force is obtained between the knob portion and the fastening portion by the pressure on the surface of the fixed object due to the elasticity of the slope and the holding portion, and the fastening is performed by the rotation braking by the stop portion. In order to secure the fastening force corresponding to the thickness of the fixed object by making the rotation tightening angle of the portion uniform and changing the mounting position of the fastening portion into any of the several holes. A fixing member characterized by the above. 2. The fixing member according to claim 1, wherein the hole is a square hole and the locking portion is a substantially square rod shape. 3. The fixing member according to claim 1, wherein the hole is a round hole and the locking portion is a substantially round bar shape. 4. The fixing member according to claim 1, wherein the fastening portion is formed by resin molding. 5. The fixing member according to claim 1, wherein the circular hole and the fan-shaped hole of the fixed object are punched.