JPH0662434U - Mat switch - Google Patents

Abstract

(57) [Summary] [Purpose] To improve water resistance so that it can be used outdoors for a long time. [Structure] A plurality of tape switches 1 having synthetic fiber holding tapes are attached and fixed to a plate 6 made of a hard synthetic resin plate to form a switch element 3. The switch element 3 is inserted into an exterior mat 4 made of a rubber container which is heat-pressed and bonded or molded to cover a plurality of tape switches. The opening of the exterior mat 4 is sealed with a seal portion 7 to which a lead wire is fixed and a filling portion 5.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a mat switch used for an emergency alarm, particularly to improve water resistance.

[0002]

[Prior art]

 Mat switches are used around robots and large machines in order to detect when people have entered dangerous areas around robots and large machines and to prevent danger. As this mat switch, as shown in FIG. 7, the upper holding tape 12 and the lower holding tape 13 made of synthetic fibers separated by a pile 11 of synthetic fibers are respectively provided with electrode plates 14, 30 on opposite inner surfaces. In the case of using the tape switch 1, which has the electrode 15 and has the electrodes 14 and 15 in contact with each other when conducting pressure as shown in FIG. It is not affected and can operate reliably.

As shown in FIG. 9, a conventional mat switch using the tape switch 1 has, for example, a lower rubber plate 21 having an outer periphery and a flange 22 adhered at room temperature for a width of 20 mm and a thickness of 3 mm. After attaching a plurality of tape switches 1 having a length of about 2 m, the lead wire portion 25 of the lead wire 24 connected to the electrode plate of each tape switch 1 is sealed, and then a groove for preventing slippage is formed. The upper rubber plate 23 is attached to the surface of the flange 22, and the tape switch 1 is covered with synthetic rubber to provide a water resistant insulation structure.

[0004]

[Problems to be solved by the device]

 As described above, the conventional mat switch has a waterproof structure in which the exterior lower rubber plate 21, the flange 22, and the upper rubber plate 23 are adhered to each other at room temperature, so that the adhesive strength of each adhered portion is small and the mat switch is used for a long time. If so, the adhesive part is locally peeled off and the water resistance deteriorates, which makes it difficult to use outdoors.

Further, since the respective adhesive parts are adhered at room temperature, it takes a long time to adhere them, resulting in poor workability.

The present invention has been made in order to solve the above disadvantages, and an object thereof is to obtain a mat switch which has improved water resistance and can be used outdoors for a long period of time.

[0007]

[Means for Solving the Problems]

 The mat switch according to the present invention is a mat switch having a switch element, an exterior mat, and a filling part, and the switch element conducts when pressurized, and a plurality of tape switches, plates, and seals are provided. And a tape switch having upper and lower holding tapes of synthetic fibers separated by a pile of synthetic fibers, and electrode plates respectively provided on the inner surfaces of the upper and lower holding tapes facing each other. The plate is made of a hard synthetic resin plate, and a plurality of tape switches are attached and fixed, and the seal part is made of synthetic resin or hard rubber, and is connected to the electrode plate of each tape switch. The outer mat consists of a rubber container that is heat-press bonded or molded, and the switch element is inserted into one end. Part covers the switch element has a filling unit is characterized in that to seal the opening by inserting a switch element of the exterior mat filler.

[0008]

[Action]

 In this invention, a plurality of tape switches having synthetic fiber holding tapes are attached and fixed to a plate made of a hard synthetic resin plate. This plate is inserted into an exterior mat composed of a rubber container that has been heat-pressed or bonded, and a plurality of tape switches are covered with the exterior mat. When the plate is inserted into the exterior mat, the seal portion, to which the lead wire is fixed, adheres to the inner surface of the exterior mat to seal the inside. Further, a filler is filled in the opening of the exterior mat into which the seal is inserted, and the outer mat is sealed.

[0009]

【Example】

 FIG. 1 is a perspective view showing the appearance of an embodiment of the present invention. As shown in the figure, the mat switch 2 has a switch element 3, an exterior mat 4, and a filling section 5. The switch element 3 conducts when pressurized and has a plurality of tape switches 1, a plate 6 and a seal portion 7, as shown in FIG. As shown in FIG. 7, the tape switch 1 is provided with electrode plates 14 and 15 on the inner surfaces of the upper holding tape 12 and the lower holding tape 13 of the synthetic fiber which are separated by the pile 11 of the synthetic fiber. When the pressure is released in the upward and downward directions, the electrode plates 14 and 15 come into contact with each other to conduct electricity. When the pressure is released, the elastic force of the pile 11 restores the electrode plates 14 and 15 to their original state. The plate 6 is formed of, for example, a hard synthetic resin plate such as vinyl chloride, and a plurality of tape switches 1 each having a length of, for example, about 2 m are attached and fixed to the upper surface thereof. The seal portion 7 has a width slightly larger than the width of the plate 6 and is formed of a synthetic resin or hard rubber in the shape of a square bar with a slightly protruding central portion, and is connected to the electrode plate of each tape switch 1. The lead wire 8 is fixed.

The exterior mat 4 covers the switch element 3, and as shown in FIG. 3, is made of a synthetic rubber container having an opening 9 at one end and a long length. The exterior mat 4 is formed by sandwiching the flange 22 between the lower rubber plate 21 and the upper rubber plate 23 and subjecting it to heat and pressure bonding for integration, or for molding. The switch element 3 is inserted from the opening 9 of the exterior mat 4, and the seal portion 7 to which the lead wire 8 is fixed adheres to the inner surface of the exterior mat to seal the tape switch 1 portion. . Further, a filling material is filled in the opening 9 of the exterior mat 4 to form the filling portion 5.

In the mat switch 2 configured as described above, when the mat switch 1 is fixed to the plate 6, the lower holding tape of the mat switch 1 is attached to the hard synthetic resin plate of the plate 6. Since 12 synthetic fibers are attached, they can be easily and surely bonded. Further, since the mat switch 1 fixed to the plate 6 made of a hard synthetic resin plate is inserted from the opening of the exterior mat 4, the mat switch 1 can be easily inserted into the exterior mat 4, and the mat switch 2 It can be manufactured efficiently.

A portion of the plurality of tape switches 1 attached and fixed to the plate 6 is covered with an exterior mat 4, and an opening 9 of the exterior mat 4 is sealed with a seal portion 7 and a filling portion 5. Therefore, it is possible to completely prevent water from entering the portion of the tape switch 1 through the opening 9. Further, since the lower rubber plate 21, the upper rubber plate 23 and the flange 22 of the exterior mat 4 are completely integrated by the heat and pressure bonding process or the molding process, the bonding strength of the joint is large and the time elapses. Can prevent the adhesive strength from deteriorating. Therefore, the water resistance of the mat switch 2 can be enhanced, and the mat switch 2 can be used stably not only indoors but also outdoors. For example, as shown in FIG. 4, the mat switch 2 is fixed by attaching a display plate 40 having a caution mark 41 composed of yellow and black stripes and an alarm mark 42 such as “Caution Fumuna” to the surface of the mat switch 2. It is also possible to fix it with an elastic clip or the like, and place this mat switch 2 continuously under the home of the station to use it for fall detection. When the mat switch 2 having the display board 40 attached thereto is arranged under the home, the tape switch 1 conducts to detect the fall when a person accidentally falls off the home, You can pay attention to train operation and prevent accidents in advance. Further, the operator can prevent the stepping on the mat switch 2 by checking the display board 40.

In the above-described embodiment, the case where the opening 9 of the exterior mat 4 is sealed by the seal portion 7 and the filling portion 5 has been described, but as shown in FIG. If the upper and lower sides of the seal portion 7 inserted in the opening portion 9 are sandwiched by the rods 51 and 52 from both sides of the exterior mat 4 and fixed by the rod ring 53 having elasticity, the seal portion of the opening portion 9 can be further improved. Can be ensured.

Further, in the above-described embodiment, the case where the sealed exterior mat 4 other than the opening 9 is used has been described, but as shown in FIG. 6, the tip of the upper rubber plate 23 near the opening 9 is provided. It is also possible to use the exterior mat 4a in which the portion 23a is not joined to the flange 22 and to join the tip portion 23a to the flange 22 after inserting the switch element 3. In this way, the switch element 3 having a long length of 2 m, for example, can be inserted into the exterior mat 4 more easily.

In this case, if the inlet flange 27 having the groove 26 is provided in the opening 9 and the stepped seal portion 7 a that fits into the groove 26 is used, the seal of the opening 9 is removed. You can be more certain.

[0016]

[Effect of device]

 As described above, the present invention, as described above, attaches and fixes a plurality of tape switches having synthetic fiber holding tapes to a plate made of a hard synthetic resin plate, and heats and presses the plates. Since it is inserted into the exterior mat made of a processed or molded rubber container, the tape switch can be easily inserted into the exterior mat to cover it.

When a plate is inserted into this exterior mat, the seal portion to which the lead wire is fixed is in close contact with the inner surface of the outer mat to seal the inside, and further the seal portion is inserted. Since the filler is filled in the opening of the exterior mat and sealed, water and the like can be reliably prevented from entering the tape switch.

Further, since the exterior mat is formed by the heat and pressure bonding process or the molding process, the durability of the joint can be enhanced and the outdoor mat can be stably used for a long time even outdoors.

[Brief description of drawings]

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

FIG. 2 is a perspective view showing a switch element.

FIG. 3 is a perspective view showing an exterior mat.

FIG. 4 is a front view showing a display plate.

FIG. 5 is a perspective view showing an appearance of a second embodiment.

FIG. 6 is a perspective view showing a third embodiment.

FIG. 7 is a sectional view showing a tape switch.

FIG. 8 is a sectional view showing an operating state of the tape switch.

FIG. 9 is a perspective view showing a conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 tape switch 2 mat switch 3 switch element 4 exterior mat 5 filling part 6 plate 7 seal part 11 pile 12 upper holding tape 13 lower holding tape 14 electrode plate 15 electrode plate

Claims (1)

[Scope of utility model registration request] 1. A mat switch having a switch element, an exterior mat, and a filling section, wherein the switch element conducts when pressurized, and comprises a plurality of tape switches, plates and seal sections. The tape switch has a top and bottom holding tape for synthetic fibers separated by a pile of synthetic fibers.
And a pole plate provided on each of the inner surfaces of the upper and lower holding tapes facing each other, and the plate is formed of a hard synthetic resin plate, and a plurality of tape switches are attached and fixed to the plate. The part is made of synthetic resin or hard rubber, fixes the lead wire connected to the electrode plate of each tape switch and seals the inside by closely contacting the inner surface of the exterior mat, and the exterior mat is heated and pressed. It consists of a rubber container that has been adhesively processed or molded, and has an opening at one end for inserting the switch element to cover the switch element, and the filling part is a filling material for the opening where the switch element of the exterior mat is inserted. A mat switch characterized by being sealed.