JP2016081747A - Long-sized switch - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a long-sized switch convenient to handle, enabling attachment to a mounting place having a curved surface, to be mounted on a variety of places.SOLUTION: In a long-sized switch 1 for switch operation by making one pair of an upper electrode plate 4 and a lower electrode plate 2 of long sizes contact or release, the upper electrode plate 4 is configured to be telescopic in the longitudinal direction and also bendable to a direction orthogonal to the longitudinal direction. Further, the lower electrode plate 2 is configured to be bendable to a direction orthogonal to the longitudinal direction.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a long switch, and can be used for installation at a curved surface and can be used in a variety of ways. For example, the train door frame and the train door are opposed to each other. The present invention relates to a long switch that is attached to an end face or the like and operates when a door is closed (or when an object or the like is sandwiched between doors) and used to electrically detect the state.

  2. Description of the Related Art Conventionally, long switches that detect the movement of a person or an object by a switch operation by contacting and separating a pair of long electrode plates have been used in various fields.

  In Patent Document 1, for example, when the shape of the upper electrode constituting the long switch is S-shaped, a part thereof enters the lower portion of the end insulator and is likely to cause a short circuit which is a fatal defect. Since the upper electrode extends like a spring, straight lines are formed on both sides of the upper electrode in the longitudinal direction in order to solve the conventional techniques such as the unstable shape and the longer path of the conductor and the increased resistance. A long switch having an upper electrode having a hole-like structure has been proposed.

  However, in the case of this long switch, since the lower electrode normally has a structure that does not expand and contract, both the upper electrode and the lower electrode do not expand and contract and cannot be wound up, which is inconvenient to handle.

  In Patent Document 2, in view of the problem of the long switch of Patent Document 1, an arch part in the out-of-plane direction is added to the linear part on both sides in the length direction of the upper electrode to ensure stretchability and take up. Proposed long switches have been proposed.

  However, even in the case of this long switch, the long switch itself cannot be laterally bent (bent in the width direction orthogonal to the length direction), and cannot be installed in an installation location having a curved surface, for example. It was accompanied by some restrictions.

Utility Model Registration No. 3065216 Japanese Patent No. 4485633

  The problem to be solved by the present invention is that, for example, there is no long switch that can be installed and used in an installation location having a curved surface, can be used in various ways, and is convenient to handle. is there.

  The long switch according to the present invention is a long switch that performs a switch operation by bringing a pair of long electrode plates into contact with each other, and one of the pair of electrode plates expands and contracts in the length direction. The main feature is that it is a shape that can be bent in a direction orthogonal to the length direction, and the other electrode plate has a shape that can be bent in a direction orthogonal to the length direction.

  According to the first aspect of the present invention, one of the pair of electrode plates can be expanded and contracted in the length direction and bendable in a direction perpendicular to the length direction, and the other electrode. Since the plate can be bent in a direction perpendicular to the length direction, it is possible to attach it to an installation location that has a curved surface, so that the installation location can be diversified, and a long switch that is convenient to handle can be installed. Can be realized and provided.

  According to the second aspect of the present invention, one electrode plate is provided with a net-like non-conductive portion having no continuous portion in the length direction, and the other electrode plate is provided with a linear conductor portion and a number of protruding pieces. Based on the provided configuration, the installation location can be diversified and a long switch that is convenient to handle can be realized and provided.

  According to invention of Claim 3, the circular hole group which formed the discontinuous non-conductive recessed part in the outer peripheral edge part according to the intended use etc. as a non-conductive part in one electrode plate, an elliptical hole Group, diamond-shaped hole group, polygonal hole group, lattice-shaped hole group, and hole group exhibiting a substantially staircase shape, enabling the desired stretching and bending action of one electrode plate to be exhibited A switch can be realized and provided.

  According to the fourth aspect of the present invention, the non-conductor portion having a symmetrical shape in the direction orthogonal to the length direction is provided on one electrode plate, and the linear conductor portion and a number of protruding pieces are provided on the other electrode plate. Based on this configuration, it is possible to diversify the installation locations and to realize and provide a long switch that is convenient to handle.

  According to invention of Claim 5, as a non-conductor part in one electrode plate, according to a use purpose etc., a circular hole group, an elliptical hole group, a rhombus-shaped hole group, a polygonal hole group, a lattice-shaped hole group By selecting from a group of holes having a substantially stepped shape, it is possible to realize and provide a long switch capable of exhibiting a desired expansion / contraction action and bending action of one electrode plate.

  According to the sixth aspect of the present invention, it is possible to realize and provide a long switch capable of exerting the bending action of the other electrode plate by utilizing the bending of a large number of comb-shaped protruding pieces.

  According to the seventh aspect of the present invention, it is possible to prevent resin adhesion during the coating process of the lower electrode plate, and to reduce the bending stress of the lower electrode plate and easily bend it in the direction crossing the linear conductor portion. A possible long switch can be realized and provided.

FIG. 1 is a schematic perspective view of a long switch according to an embodiment of the present invention. FIG. 2 is a schematic plan view showing an example of an upper electrode plate having a net-like non-conductive portion where there is no continuous portion in the length direction as one of the electrode plates in the long switch according to the present embodiment. FIG. 3 is a schematic plan view showing a first example of an upper electrode plate having a net-shaped non-conductor portion symmetrical in a direction orthogonal to the length direction which is one electrode plate in the long switch according to the present embodiment. is there. FIG. 4 is a schematic plan view showing a second example of an upper electrode plate having a net-shaped non-conductive portion symmetrical in a direction orthogonal to the length direction, which is one electrode plate in the long switch according to the present embodiment. is there. FIG. 5 is a schematic plan view showing a third example of an upper electrode plate having a net-shaped non-conductor portion symmetrical in a direction orthogonal to the length direction which is one electrode plate in the long switch according to the present embodiment. is there. FIG. 6 is a schematic plan view showing a fourth example of the upper electrode plate having a non-conductive portion symmetrical in the direction orthogonal to the length direction which is one of the electrode plates in the long switch according to the present embodiment. . FIG. 7 is a schematic plan view showing a fifth example of an upper electrode plate having a non-conductive portion symmetrical in a direction orthogonal to the length direction, which is one of the electrode plates in the long switch according to the present embodiment. . FIG. 8 is a schematic plan view showing a first example of a lower electrode plate which is the other electrode plate in the long switch according to the present embodiment. FIG. 9 is a schematic plan view showing a second example of the lower electrode plate which is the other electrode plate in the long switch according to the present embodiment. FIG. 10 is a schematic plan view showing a third example of the lower electrode plate which is the other electrode plate in the long switch according to the present embodiment. FIG. 11 is a schematic plan view showing a fourth example of the lower electrode plate which is the other electrode plate in the long switch according to the present embodiment.

  An object of the present invention is to provide a long switch that can be used and installed in an installation location having a curved surface, can be used in various ways, and is easy to handle. In a long switch that performs a switch operation by bringing the plates into contact with each other, one of the pair of electrode plates (for example, the upper electrode plate) can be expanded and contracted in the length direction, and the length direction The other electrode plate (for example, the lower electrode plate) can be bent in a direction orthogonal to the length direction.

Hereinafter, a long switch according to an embodiment of the present invention will be described in detail with reference to the drawings.
FIG. 1 shows a long switch 1 according to an embodiment of the present invention. The long switch 1 includes a lower electrode plate 2 made of a long plate-like conductive material, and a lower electrode plate 2 of the lower electrode plate 2. A long insulating material 3 covering the outer periphery excluding the region of the opening 2a, an upper electrode plate 4 made of a long and plate-like conductor material overlaid on the opening 6, and a convex portion 5a on the upper end side. In addition, the outer cover 5 is made of an insulating material made of a synthetic resin such as polyethylene that covers the outer periphery of the insulating material 3 and the upper electrode plate 4.

  In the description of this embodiment, the upper electrode plate 4 is also referred to as one electrode plate, and the lower electrode plate 2 is also referred to as the other electrode plate.

  The upper electrode plate 4, which is one of the electrode plates, can be expanded and contracted in the length direction of the long switch 1 and can be bent in a direction orthogonal to the length direction.

  A specific configuration example of the upper electrode plate 4 will be described with reference to FIGS.

  FIG. 2 shows an upper electrode plate 4 having a net-like non-conductive portion 8 in which no continuous portion exists in the length direction. The upper electrode plate 4 has a substantially rectangular shape on the upper electrode plate 4 itself. A net-like non-conductor portion 8 composed of a large number of holes 7 is provided so as to exhibit a net shape as a whole.

  In addition, a discontinuous non-conductor recessed portion 9 is formed on the outer peripheral edge in the length direction of the upper electrode plate 4.

  According to the upper electrode plate 4 as described above, the tensile stress in the length direction is reduced due to the presence of the numerous holes 7 and the presence of the outer peripheral edge 9, and there is no continuous portion. Easy expansion and contraction.

  Further, the bending stress in the width direction of the upper electrode plate 4 is also reduced due to the presence of a large number of holes 7, and it is easy to bend (bend) in the width direction.

  That is, the presence of the non-conductor portion 8 allows the upper electrode plate 4 to expand and contract in the length direction as if it were a leaf spring and bend in the width direction.

  Since the expansion and contraction and bending of the upper electrode plate 4 are completed in a two-dimensional plane, there is a possibility that this portion will be broken due to the bending of this portion by adding an arch portion having a small R in the out-of-plane direction as in the cited reference 2. Absent.

  Further, since each hole 7 of the net-like non-conductor portion 8 is closed and surrounded by the thick portion of the upper electrode plate 4, the branch portion around the hole 7 can be made thin. The outer edge portion of the upper electrode plate does not enter the end insulator as in the conventional example.

  As the shape of the non-conductive portion 8 of the upper electrode plate 4, a shape similar to the non-conductive portions 11A to 11E of the upper electrode plate 4A to the upper electrode plate 4E as will be described later can be adopted. .

  Furthermore, the shape of the non-conductor portion 8 can be freely selected from an oval hole group, a polygonal hole group, a hole group having a substantially stepped shape, etc. (not shown).

  FIG. 3 shows a first example of one electrode plate, which is an upper electrode plate 4A having a net-shaped non-conductor portion 11A symmetrical in a direction orthogonal to the length direction. This upper electrode plate 4A is A net-like non-conductor portion 11A composed of a large number of holes 12 that are symmetrical in the direction orthogonal to the length direction of the upper electrode plate 4A itself, that is, a substantially square shape, is provided so as to exhibit a net shape as a whole. It is configured. In addition, a discontinuous non-conductor recessed portion 12a is formed on the outer peripheral edge in the length direction of the upper electrode plate 4A.

  According to such an upper electrode plate 4A, the tensile stress in the length direction is reduced due to the presence of the numerous holes 12 and the non-conductor recessed portions 12a, there is no continuous portion, and the expansion and contraction in the length direction is easy. It becomes.

  Further, the bending stress in the width direction of the upper electrode plate 4A is also reduced due to the presence of the numerous holes 12, and it is easy to bend (bend) in the width direction.

  That is, due to the presence of the non-conductor portion 11A, the upper electrode plate 4A can be expanded and contracted in the length direction as if it were a leaf spring and bent in the width direction.

  Since the expansion and contraction and bending of the upper electrode plate 4A are completed in a two-dimensional plane, there is a possibility that this portion may be broken due to the bending of this portion due to the addition of the small arch portion in the out-of-plane direction as in Reference 2. Absent.

  Further, since each hole 12 of the net-shaped non-conductor portion 11A is closed and surrounded by the thick portion of the upper electrode plate 4A, the branches around the hole 12 can be made thin. The outer edge portion of the upper electrode plate does not enter the end insulator as in the conventional example.

  FIG. 4 shows an upper electrode plate 4B as a second example. The upper electrode plate 4B has a net shape symmetrical to the direction orthogonal to the length direction of the upper electrode plate 4B itself, that is, approximately rhombus. A net-like non-conductor portion 11B composed of a large number of holes 13 having a shape is provided so as to exhibit a net shape as a whole. In addition, a discontinuous non-conductor recessed portion 13a is formed at the outer peripheral edge in the length direction of the upper electrode plate 4B.

  This upper electrode plate 4B can exhibit the same operations and effects as those of the upper electrode plate 4A.

  FIG. 5 shows an upper electrode plate 4C as a third example. This upper electrode plate 4C has a net-like shape that is symmetric in a direction orthogonal to the length direction of the upper electrode plate 4C itself, that is, substantially parallel. A non-conductor portion 11C having a net shape made up of a large number of holes 14 having a quadrilateral shape is provided so as to exhibit a net shape as a whole. In addition, a discontinuous non-conductor recessed portion 14a is formed on the outer peripheral edge in the length direction of the upper electrode plate 4C.

  This upper electrode plate 4C can also exhibit the same operations and effects as those of the upper electrode plate 4A.

  FIG. 6 shows an upper electrode plate 4D which is a fourth example. This upper electrode plate 4D has a symmetrical shape in a direction orthogonal to the length direction of the upper electrode plate 4D itself, that is, a circular shape. A non-conductor portion 11D having a net shape composed of a large number of holes 15 to be provided is provided so as to exhibit a net shape as a whole. In addition, a discontinuous non-conductor recessed portion 15a is formed on the outer peripheral edge in the length direction of the upper electrode plate 4D.

  This upper electrode plate 4D can also exhibit the same operations and effects as those of the upper electrode plate 4A.

  FIG. 7 shows an upper electrode plate 4E as a fourth example, and this upper electrode plate 4E has a symmetrical shape in a direction orthogonal to the length direction of the upper electrode plate 4D itself, that is, a rectangular shape. A non-conductor portion 11E having a net shape made up of a large number of holes 16 is provided so as to exhibit a net shape as a whole. In addition, a discontinuous non-conductor recessed portion 16a is formed on the outer peripheral edge in the length direction of the upper electrode plate 4E.

  This upper electrode plate 4E can also exhibit the same operations and effects as those of the upper electrode plate 4A.

  The shape of each non-conductor portion in the upper electrode plates 4A to 4E is not limited to the above-described examples, and can be freely selected from an elliptical hole group, a polygonal hole group, a hole group having a substantially step shape, etc. (not shown). In these cases, the same actions and effects as those described above can be exhibited.

  Next, the lower electrode plate 2 which is the other electrode plate will be described.

  As a shape that can be bent in the direction perpendicular to the length direction of the lower electrode plate 2, as shown in FIG. 8, a linear conductor portion that is continuous in the length direction constituting the lower electrode plate 2 is used. 21 and a large number of protruding pieces 22 that protrude from the linear conductor portion 21 in the direction of the contact surface with the upper electrode plate 4 and in the direction intersecting with the linear conductor portion 21 at intervals. The shape can be mentioned.

  The linear conductor portion 21 is for preventing the lower electrode plate 2 from extending in the length direction, and the end portion of the linear conductor portion 21 is linear and covered with an extrusion-molded insulator. I try not to get involved.

  Further, the lower electrode plate 2 can be bent by utilizing the bending of the protruding pieces 22 in the direction intersecting with the linear conductor portion 21.

  FIG. 9 shows a lower electrode plate 2A which is a second example, and a linear conductor portion 21A continuous in the length direction and a contact surface direction from the linear conductor portion 21A to the upper electrode plate 4 are shown. And a plurality of protruding pieces 22A protruding in a comb-like shape at intervals on both sides in the direction crossing the linear conductor portion 21A.

  Also with this lower electrode plate 2A, the same actions and effects as in the case of the lower electrode plate 2 can be exhibited.

  FIG. 10 shows a lower electrode plate 2B as a third example. In the direction of the contact surface between the linear conductor portion 21B continuous in the length direction and the upper electrode plate 4 from the linear conductor portion 21B. And a plurality of projecting pieces 22B projecting in a comb-teeth shape at intervals on one side in the direction crossing the linear conductor portion 21B.

  Also with this lower electrode plate 2B, the same operations and effects as in the case of the lower electrode plate 2 can be exhibited on the basis of a configuration in which a large number of protruding pieces 22B are cantilevered.

  FIG. 11 shows a lower electrode plate 2C which is a fourth example. In the direction of the contact surface between the linear conductor portion 21C continuous in the length direction and the linear electrode portion 21C and the upper electrode plate 4, FIG. And a large number of wide protruding pieces 22C protruding from both sides of the linear conductor portion 21C in the direction intersecting with the linear conductor portion 21C at the center position.

  In the case of the lower electrode plate 2C shown in FIG. 11, each protruding piece 22C has a linear conductor portion with a narrow width portion 24 defined by a T-shaped groove portion 23 provided in a protruding portion from the linear conductor portion 21C. It is formed so as to continue to 21C.

  According to the lower electrode plate 2C shown in FIG. 11, expansion and contraction in the length direction is prevented by the linear conductor portion 21C.

  Further, since each wide protruding piece 22C is connected to the linear conductor portion 21C by the narrow width portion 24 defined by the T-shaped groove portion 23, the lower electrode plate 2C made of resin at the time of manufacturing the long switch 1 is used. It is possible to prevent the resin adhesion during the coating process, and to reduce the bending stress of the lower electrode plate 2C and to bend it in the direction crossing the linear conductor portion 21C easily.

  Note that. In the embodiment described above, the upper electrode plate 4 is described as one electrode plate and the lower electrode plate 2 is described as the other electrode plate. However, the arrangement of the lower electrode plate 2 and the upper electrode plate 4 in the long switch 1 is described. Of course, an upside down configuration is also possible.

  The long switch according to the present invention can be widely applied to the detection of articles and humans in industrial fields such as various factories, crime prevention fields, distribution fields, etc. in addition to the detection of closing of train doors and the like.

DESCRIPTION OF SYMBOLS 1 Long switch 2 Lower electrode plate 2A Lower electrode plate 2B Lower electrode plate 2C Lower electrode plate 3 Insulation material 4 Upper electrode plate 4A Upper electrode plate 4B Upper electrode plate 4C Upper electrode plate 4D Upper electrode plate 4E Upper electrode plate 5 Jacket 5a Convex 6 Opening 7 Hole 8 Non-conductive part 9 Non-conductive recessed part 11A Non-conductive part 11B Non-conductive part 11C Non-conductive part 11D Non-conductive part 11E Non-conductive part 12 hole 12a Non-conductive concave part 13 Hole 13a Non-conductive concave part Part 14 Hole 14a Non-conductor recessed part 15 Hole 15a Non-conductor recessed part 16 Hole 16a Non-conductor recessed part 21 Linear conductor part 21A Linear conductor part 21B Linear conductor part 21C Linear conductor part 22 Projection piece 22A Projection piece 22B Projection Piece 22C Projection piece 23 T-shaped groove portion 24 Narrow width portion

Claims (7)

In a long switch that performs a switch operation by bringing a pair of long electrode plates into contact with each other,
Of the pair of electrode plates, one of the electrode plates can be expanded and contracted in the length direction and bendable in a direction perpendicular to the length direction, and the other electrode plate is orthogonal to the length direction. A long switch characterized in that it has a shape that can be bent in a direction to be bent. The shape of either one of the electrode plates that can be expanded and contracted in the length direction and that can be bent in the orthogonal direction is provided by providing a non-conductor portion having a shape that does not have a continuous portion in the length direction on the electrode plate itself. Is formed,
The shape of the other electrode plate that can be bent in a direction perpendicular to the length direction is a linear conductor portion that is continuous in the length direction constituting the electrode plate itself, and the one electrode plate from the linear conductor portion. 2. The long length according to claim 1, characterized in that it is formed by a plurality of projecting pieces projecting at intervals in a direction in contact with the linear conductor portion and in a direction intersecting with the linear conductor portion. switch. The non-conductor portion of the shape in which there is no continuous portion in the length direction that can be expanded and contracted in the length direction in any one of the electrode plates and bendable in the orthogonal direction,
Select from circular hole group, elliptical hole group, rhombus hole group, polygonal hole group, lattice hole group, and hole group with a substantially stepped shape, each of which has a discontinuous non-conductor recessed part on the outer edge. The long switch according to claim 1, wherein the long switch is provided. The shape of either one of the electrode plates that can be expanded and contracted in the length direction and that can be bent in the orthogonal direction is obtained by providing a non-conductor portion having a symmetrical shape in the direction orthogonal to the length direction on the electrode plate itself. Is formed,
The shape of the other electrode plate that can be bent in a direction perpendicular to the length direction is a linear conductor portion that is continuous in the length direction constituting the electrode plate itself, and the one electrode plate from the linear conductor portion. 2. The long length according to claim 1, characterized in that it is formed by a plurality of projecting pieces projecting at intervals in a direction in contact with the linear conductor portion and in a direction intersecting with the linear conductor portion. switch.   The non-conductor portion having a shape that is symmetric in the direction perpendicular to the length direction and that is capable of expanding and contracting in the length direction in the electrode plate of any one of the above, 5. The long switch according to claim 4, wherein the long switch is selected from a shape hole group, a rhombus shape hole group, a polygonal hole group, a lattice hole group, and a hole group having a substantially stepped shape.   5. The long switch according to claim 2, wherein a plurality of comb-like protruding pieces are formed on a linear conductor portion continuous in a length direction of the other electrode plate.   Each of the spaced apart protruding pieces on the other electrode plate is formed so as to be continuous with the linear conductor portion at a narrow width portion defined by a T-shaped groove provided in the protruding portion from the linear conductor portion. The long switch according to claim 2 or 4, wherein the long switch is provided.

Images