JPH07240130A - Flexible electrode member, and impact preventing switch member using it - Google Patents

Abstract

PURPOSE:To provide a flexible electrode member which can be stuck onto a base surface having a curved surface or bent surface or a base surface consisting of a ring flat surface in such a manner as to be capable of bending and zigzagging, and an impact preventing switch using it. CONSTITUTION:One plate electrode 2 fixed to a flexible member 2 at a prescribed pitch and the other plate electrode 5 fixed to a cushioning member 4 at a prescribed pitch are arranged in the mutually opposed state with a clearance, and in the clearance, a spacer 7 is fixed to at least either one of the flexible member 2 and the cushioning member 4. Each plate electrodes 3, 5 is connected by a conductor 8.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a flexible electrode member and an impact-preventing switch member using the same, and more particularly, it can be mounted on a substrate surface having a curved surface or a bent surface or a substrate surface having a ring-shaped flat surface. TECHNICAL FIELD The present invention relates to a flexible electrode member and an impact prevention switch member using the flexible electrode member.

[0002]

2. Description of the Related Art Heretofore, it has been proposed that a tape-shaped switch is wound around the outer periphery of the end of a moving body such as a robot, or a switch is attached to a local portion of the end of the robot. In these switches, upper and lower electrodes made of phosphor bronze or the like and a spacer interposed therebetween are provided to form a gap between the upper and lower electrodes, and the upper and lower electrodes are covered with a sheet-shaped buffer member. In this type of switch, it is ideal that the switch be actuated by giving the cushioning member a deflection that is approximately close to the gap between the upper and lower electrodes. Further, the present applicant previously arranged the inner electrode fixed to the base body and the mesh-shaped outer electrode fixed to the cushioning member with a certain gap portion between them,
We proposed an impact prevention switch member having a structure in which a spacer thicker than the outer electrode is arranged in the gap and is fixed to at least one of the buffer member and the inner electrode.

[0003]

However, in the conventional planar switch, the cushioning member is placed on the switch portion using the bending elasticity of the metal electrode itself with the spacer interposed or the compression elasticity of the spacer. It has a different structure. For this reason, in order for both electrodes to come into contact with each other, in addition to the bending stress of the electrodes or the bending stress of the spacers, compression that causes the deformation stress of the cushioning member must be given. In order to improve the performance, it was necessary to use an excessively thick cushioning member. In addition, the switch member in which a tape-shaped switch is wound around the outer circumference of the cylinder does not detect the force from the lower end of the cylinder even if it is actuated by the force from the side of the cylinder (radial direction). Even if they were attached to the ends, they could not cope with the force from multiple directions.

Further, the conventional switch member does not have a margin for deformation to allow a lag time until the robot stops after the switch is operated, and a strong impact may be applied to the base body, so that it can be reliably operated under a light load. There has been a demand for a switch member that stops at. In addition, although the impact prevention switch member proposed above has improved these problems, since the mesh-shaped outer electrode is installed in the bent portion of the end of the ring-shaped substrate, the outer electrode is mesh-shaped. It takes a lot of time to dispose, and it is necessary to provide a through hole in the outer electrode when inserting a screw or the like into the bent portion of the base end portion. Furthermore, if the end of the substrate becomes a curved surface or a curved surface,
The outer electrode was also arranged along the surface of the substrate to maintain a constant distance from the surface of the substrate. This work is extremely difficult, and it has been strongly desired to improve this point.

The present invention solves the above problems and is flexible so that it can be flexibly and meanderably attached to the surface of a substrate having a curved surface or a curved surface or the surface of a substrate having a ring-shaped flat surface. A sensitive electrode member, and sensitive to force from any direction from the side to the lower end of the base body, and after the switch is actuated against external force until the moving body such as a robot stops. It is an object of the present invention to provide an impact prevention switch member which has an appropriate degree of bending to allow the lag time and which has a simplified electrode arrangement.

[0006]

According to the present invention which meets the above object, one plate-shaped electrode fixed to a flexible member at a predetermined pitch and the other plate-shaped electrode fixed to a buffer member at a predetermined pitch. Are arranged in a state of facing each other with a gap, and a spacer is fixed to at least one of the flexible member and the cushioning member in the gap, and the plate-shaped electrodes are connected by conducting wires. It is in.

Further, according to the present invention, in a shock-preventing switch member in which a flexible electrode member is attached to an end portion of a substrate, the flexible electrode member is one plate-like member fixed to the flexible member at a predetermined pitch. The electrode and the other plate-like electrode fixed to the cushioning member at a predetermined pitch are arranged in a state of facing each other with a gap,
A spacer is fixed to at least one of the flexible member and the cushioning member in the gap, and each plate electrode is connected by a conductive wire, and an impact prevention switch member using the conductive wire as a terminal is also included.

[0008]

That is, in the flexible electrode member of the present invention, by arranging the plate-like electrodes at a predetermined interval and connecting them with a conductor, the flexibility is excellent, and the substrate surface having a curved surface or a bent surface is excellent. It can also be flexibly attached to the surface of a base having a ring-shaped flat surface. Also, in the shock prevention switch member,
When compressive deformation is applied to the cushioning member, the cushioning member intrudes into the space between the spacers without being regulated and deforms. By arranging them and connecting them with conducting wires, it is not necessary to arrange the plate-shaped electrodes in a mesh shape, and the switch can be operated at any part with a simple arrangement. Furthermore, the switch installation part is curved or meandering. Can be placed without any problems. Further, not only the switch can be operated with a deformation amount that is approximately close to the gap between the electrodes, but there is still room for sufficient deformation (allowable bending) for preventing impact after the switch is operated.
Therefore, the lag time until the moving body completely stops can be earned, which is effective in protecting the substrate.

[0009]

Embodiments of the present invention will be described below with reference to the accompanying drawings. 1 is a partially cutaway plan view of a flexible electrode member according to the present invention, FIG. 2 is a sectional view taken along the line AA of FIG. 1, and FIG. 3 is an impact prevention switch member using the flexible electrode member shown in FIG. 4 is a partially cutaway bottom view of FIG. 3. According to this, the flexible electrode member 1 according to the present invention has an elongated shape, and one plate-like electrode 3 fixed to the flexible member 2 at a predetermined pitch and the buffer member 4 at a predetermined pitch. The other plate-shaped electrode 5 fixed by the above is disposed so as to face each other with a gap 6 provided, and the spacer 7 is fixed in this gap 6 to both or one of the flexible member 2 and the buffer member 4, and The plate-shaped electrodes 3 and 5 are connected by a conductive wire 8. Conductor 8
Is a bendable wire material such as a braided wire, and is hardly affected by the bending stress of the cushioning member 4.

The flexible member 2 is made of a non-conductive rubber, a thermoplastic resin such as polystyrene, polyethylene or vinyl chloride,
It is made of foam or solid synthetic resin such as urethane.

The spacer 7 is made of synthetic resin or rubber and has a block shape, a double-sided or single-sided tape shape, but is not particularly limited. In the case of this embodiment, the spacer 7 is bonded to both the flexible member 2 and the cushioning member 8.

The cushioning member 4 is made of a non-conductive rubber, a thermoplastic resin such as polystyrene or polyethylene, or a foam made of urethane or the like, but the material is not particularly limited. The surface of the cushioning member 4 may be covered with the skin material 10.

The impact-preventing switch member 12 using the flexible electrode member 1 has a ring-shaped switch mounting portion 14 formed at the end of a cylindrical base 13 for mounting the electrode member 1 on a moving body such as a robot. It is designed to be attached to the switch mounting portion 14 on the cylindrical side wall. That is, the switch installation unit 14
Then, a plurality of flexible members 2 mounted on the surface of the base body 13 and a plurality of plate-shaped electrodes 3 fixed to the flexible member 2 are arranged with a constant gap, and further fixed to the buffer member 4 at a predetermined pitch. The other plate-shaped electrode 5 is arranged so as to face each other with a gap 6 provided, and a spacer 7 is fixed to this gap 6 on both or one of the flexible member 2 and the buffer member 4, and each plate-shaped electrode It has a structure in which electrodes 3 and 5 are connected by a conductive wire 8.

In particular, by arranging the plate-shaped electrodes 3 and 5 radially on the switch mounting portion 14 at intervals and connecting them by the conductive wire 8, the switch can be operated at any part of the switch mounting portion 14. Even if the switch installation portion 14 is curved, it can be arranged without any problem. The conducting wires 8 and 8 serve as terminals 17.

When the shock prevention switch member 12 according to the present invention comes into pressure contact with the mating object, the buffer member 4 is deformed. At this time, the buffer member 4 is deformed with almost no influence on the space between the spacers 7, and the switch is operated with a deformation amount almost close to the gap between the plate electrodes 3 and 5. Further, the cushioning member 4 leaves room for sufficient compression deformation even after the switch is activated. Therefore, the lag time until the moving body completely stops can be earned, which is effective in protecting the base body 13 and the counterpart object.

For example, the shock prevention switch member 12 according to the present invention is used for an end portion of a moving body such as a robot, for example, an image pickup tube of an X-ray diagnostic apparatus. Even if the image pickup tube is impacted during operation, the impact prevention switch member 12 stops the movement of the image pickup tube and prevents the image pickup tube from being damaged. Moreover, even if the image pickup tube comes into contact with the human body as the other object, the image pickup tube stops before applying an unreasonable force. Of course, the same effect can be expected even if the impact prevention switch member 12 is attached to a corner portion or the like of a bumper member for automatic transportation. In addition, reference numeral 15 in the drawing is a filter plate for blocking X-rays of a specific wavelength, and the shock prevention switch member 1
It is fixed at 2.

[0017]

INDUSTRIAL APPLICABILITY As described above, the flexible electrode member of the present invention is excellent in flexibility and can be bent and meandered even on a substrate surface having a curved surface or a curved surface or a substrate surface having a ring-shaped flat surface. In the shock-preventing switch member, the shock-absorbing member is deformed without entering the space between the spacers without restriction, which causes the electrodes to come into contact with each other to operate the switch, and the plate-shaped electrode By arranging them at a predetermined interval and connecting them with a conductive wire, it is not necessary to arrange the plate electrodes in a mesh shape, and the switch can be operated at any part with a simple arrangement. Even if they are installed, they can be placed without any problems.

Further, not only the switch can be operated with a deformation amount that is almost close to the gap between the electrodes, but there is still room for sufficient deformation (allowable bending) for preventing impact after the switch is operated. . Therefore, the lag time until the moving body completely stops can be earned, which is effective in protecting the substrate.

[Brief description of drawings]

FIG. 1 is a partially cutaway plan view of a flexible electrode member according to the present invention.

FIG. 2 is a sectional view taken along line AA of FIG.

3 is a cross-sectional view of an impact prevention switch member according to the present invention using the flexible electrode member shown in FIG.

4 is a partially cutaway bottom view of FIG. 3. FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Flexible electrode member 2 Flexible member 3 Plate-shaped electrode 4 Buffer member 5 Plate-shaped electrode 7 Spacer 8 Conductive wire 13 Base

Claims (2)

[Claims] 1. A plate-shaped electrode fixed to a flexible member at a predetermined pitch and another plate-shaped electrode fixed to a cushioning member at a predetermined pitch are arranged to face each other with a gap provided therebetween. A flexible electrode member, characterized in that a spacer is fixed to at least one of the flexible member and the buffer member in the gap, and each plate electrode is connected by a conductive wire. 2. An impact-preventing switch member having a flexible electrode member attached to an end of a base body, wherein the flexible electrode member is fixed to the flexible member at a predetermined pitch, and a plate-shaped electrode and a buffer member. The other plate-shaped electrode fixed at a predetermined pitch is arranged in a state of facing each other with a gap provided, and a spacer is fixed to at least one of the flexible member and the buffer member in the gap, and each plate is A shock-proof switch member, characterized in that the electrodes are connected by a conductor, and the conductor is used as a terminal.