JPH1186674A - Connector for hose switch - Google Patents

Abstract

PROBLEM TO BE SOLVED: To perform sure connection by providing a spring for electrically connecting the end part of a connecting terminal which is partially exposed to the circumference of a body to make contact with a conductive member while pressing it, and a clamp member for nipping and fastening a hose member on the circumference of a connector body. SOLUTION: Connector bodies 21, 31 are inserted into hose members 11, 11. The connector bodies 21, 31 are formed of internally solid members and are hardly deformed, even when an external pressure is applied. Clamp members 22, 32 are fastened to the circumferences of the hose members 11, 11 by fastening bolts 22d, 32d. Since the connector bodies 21, 31 are fastened by engaging a nut 35 with a collar part 31g of the connector body 31 and screwing it with the male screw part of the connector body 21, hose switches 10A, 10B are connected mechanically. Since first and second connecting terminals 23, 33 are mutually pressed into contact by a spring 24, the hose switches 10A, 10B are surely connected electrically. Thus, a switch action can be performed by carrying a current to conductive members 12, 12.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hose switch connector for connecting a hose switch.

[0002]

FIG. 7 is a sectional view showing a hose switch connected by a connector according to the present invention. The hose switch 10 includes a hose member 11 and a conductive member 12. The hose member 11 is a tubular member made of rubber or resin having elasticity and insulating properties. The conductive member 12 is a plurality of conductive and flexible spiral members that are fixed to the inner surface of the hose in all cross sections of the hose member 11 so that a part of the surface is exposed to the internal space. .

[0003] The hose switch 10 comprises a hose member 1.
No matter which position (the pressing width in the longitudinal direction of the hose member 11) is pressed, the plurality of conductive members 12 exposed on the inner surface are spiral, so that the hose member 11 is crushed and intersects. Contact. Therefore, if one conductive member 12 is connected to a power source, the other conductive member 12 is energized,
Acts as a switch.

FIGS. 8A and 8B are views for explaining the operation of the hose switch. FIG. 8A is a sectional view and FIG. 8B is a side view. FIG. 8B is a perspective view in which the spiral curve is linearized. The solid line is switch on,
The broken line indicates the switch-off state.

The spiral conductive members (A) and (C) indicate the power supply side, and the conductive members (B) and (D) indicate the load side. Here, the conductive members (A) and (B) and (C) and (D)
The phases are shifted from each other by 180 °, and (A) and (C) show an example of a four-helix shifted by 90 °. Also,
P indicates the pitch.

When no external pressure is applied, the state shown by a broken line is shown, and the conductive members (A), (B), (C) and (D) are separated from each other. In the case of FIG. 8, when the pressure F in the X-axis direction is received over the length L1 of the helical pitch P or more, the hose switch 10 is crushed to be in a solid line state.

At this time, in the cross section 1, a1 is a1
-1, b1 is displaced to b1-1, c1 is displaced to c1-1, d1 is displaced to d1-1, and c1 and d1 intersect and contact each other.
Power is supplied from 1-1 to d1-1.

Similarly, in section 2, a2-1 and b2
-1, c3-1 and d3-1 in section 3, a4-1 and b4-1 in section 4, and a4-1 and b4-1 in section 5.
c5-1 and d5-1 cross each other, and contact electricity is supplied.
That is, in this case, there are five contact points. Similarly, at positions longer than P and at position L2, the sections 2, 3,
There will be four points of contact, 4 and 5.

[0009]

The above-described hose switch has the advantage that, unlike the conventional tape switch, it can be manufactured very long and has no direction. However, it is necessary to manufacture one hose switch into a unit length and to connect a plurality of hose switches in series according to the use situation, for convenience of handling.

Further, when connecting the hose switch to another device, it is necessary to connect the hose switch to an electric wire or to connect the hose switch to a branch box when the hose switch is used by branching.

In the above case, in order to connect the hose switch without deteriorating the advantages of the hose switch, the following requirements must be satisfied.

(1) The conductive member of the hose switch can be electrically connected to an external electric wire. (2) The hose switches can be connected in series. (3) Waterproof (airtight, watertight) structure. (4) It should be easily removable. (5) It is hard to be crushed or detached by external force. (6) as small as possible (there is little difference from the outer diameter of the hose member)
That. (7) No sharp projections. (8) The hose member and the conductive member are fixed together, and the conductive member does not peel even when an external force is applied to the hose member.

An object of the present invention is to provide a hose switch connector which can be securely connected without deteriorating the advantages of the hose switch.

[0014]

In order to solve the above-mentioned problems, the invention according to claim 1 comprises an insulating and elastic tubular hose member (11) and a hose inner surface in all cross sections of the hose member. An end of a hose switch (10) including a plurality of spirally arranged flexible conductive members (12) fixed so that a part of its surface is exposed to the internal space; A hose switch connector for connecting an end of the hose switch, a first and a second connector body (21, 31) which are inserted in close contact from the end of the hose member, and the first and second connector bodies; Second
First and second connection terminals (23, 33), which are fixed to the connector body in the axial direction, are partially exposed on the outer periphery of the connector body, and come into contact with the conductive member, and the first and second connection terminals.
An elastic member (24) for electrically connecting the ends of the connection terminals while pressing the connection terminals during connection, a connection member (35) for connecting the ends of the first and second connector bodies, and First and second clamp members (2) which clamp the hose member around the outer periphery of the first and second connector bodies.
2, 32).

According to a second aspect of the present invention, the third or fourth connector body connected to an end of the first or second connector body of the hose switch connector according to the first aspect, A third or fourth connection terminal fixed in the axial direction to the fourth connector main body and connected to the electric wire, and ends of the first or second connector main body and the third or fourth connector main body to each other. A connector for a hose switch, comprising a connecting member to be connected.

According to a third aspect of the present invention, there is provided a hose switch connector according to the first or second aspect, wherein the first or second connector body is connected to an end of the first or second connector main body to seal the end.
And a connecting member for connecting the first or second connector main body to the fifth or sixth connector main body.

[0017]

Embodiments of the present invention will be described below in more detail with reference to the drawings. [First Embodiment] FIG. 1 is a view showing a first embodiment of a hose switch connector according to the present invention. (Structure) In the first embodiment, one hose switch 10A
Is connected to a first connector 20 attached to an end of the hose switch 10B and a second connector 30 attached to an end of another hose switch 10B.

The first connector 20 includes a connector body 21
, A clamp member 22, a first connection terminal 23, a spring 24, an O-ring 26, and the like.

The connector body 21 is inserted into a cylindrical base 21a having an external thread on the outer periphery, a flange 21b connected to the base 21a, an annular flange 21c, and an inner periphery of the hose member 11. Small diameter portion 21d and small diameter portion 21d
A terminal insertion portion 21e having an opening at the outer periphery of the base portion 21a and penetrating from the end face of the base portion 21a, a frustoconical portion 21f provided at the distal end of the small diameter portion 21d and having a function of preventing falling off, and the like.

The clamp member 22 is a two-part member for clamping the outer periphery of the hose member 11, and has an inner peripheral groove portion 22 a engaged with the flange portion 21 c and an annular inner peripheral portion so as to bite into the hose member 11. Projected protrusions 22b, 22c
And a fastening bolt 22d for fastening the split member.

The first connection terminal 23 has a terminal insertion portion 21e.
And a part of the side surface is exposed from the opening thereof, is in contact with the conductive member 12 provided on the inner periphery of the hose member 11, and a spring 24 is fixed to the connection side end.

The spring 24 is connected to the first connection terminal 2.
3 and a second connection terminal 33, which will be described later, for electrical connection.
3 is fixed by caulking or screwing.

The O-ring 26 is a sealing member inserted between the annular flange 21 c of the connector body 21 and the end of the hose member 11.

The second connector 30 includes a connector body 31
, A clamp member 32, a second connection terminal 33, a nut 35, and O-rings 36 and 37. The connector main body 31 has a base 31 similar to the connector main body 21.
a, an annular flange portion 31c, a small diameter portion 31d, a terminal insertion portion 31e, and a truncated conical portion 31f, and a flange portion 31g is formed at an end of the base portion 31a.

Like the clamp member 22, the clamp member 32 includes an inner peripheral groove 32a, protrusions 32b and 32c,
Tightening bolts 32d and the like are provided. The nut 35 is
The connector body 31 includes an inner peripheral flange portion 35a that engages with a jaw portion of a flange portion 31g of the connector body 31.
A female screw portion screwed to the male screw portion of 1a is provided on the inner periphery. The O-ring 36 is a sealing member inserted between the annular flange 31 c of the connector body 31 and the end of the hose member 11. The O-ring 37 is connected to the connector body 31.
And a sealing member inserted between the connector body 21.

The connector bodies 21, 31 and the clamp members 22, 32 are made of insulating resin or rubber.

(Characteristics of Connection Terminals) FIG. 2 is a view showing connection terminals of the connector according to the first embodiment. The first and second connection terminals 23 and 33 of the present embodiment are solid
It is a round metal pin. The reason for this is that, when crimped onto the spiral conductive member (electric wire) 12 inside the hose member 11, it is not crushed. When arranging multiple poles on the inner diameter and circumference of 11,
The diameter of the connection terminal cannot be increased, so that the connection terminal cannot be formed into a hollow sleeve. Therefore, plate-like connection terminals 23 and 33 are not suitable.

The first and second connection terminals 23, 33
Can contact even if the hose member 11 is displaced in the rotation direction in the range of L in FIG. Moreover, even if it is a straight cylindrical pin having no flat portion, the conductive member 12 is a helical electric wire, so that it is difficult for the conductive member 12 to be in a deviated position. Further, since the first and second connection terminals 23 and 33 have sufficient strength, the first and second connectors 20 and 30 can also be used to stop (shift).

The first and second connection terminals 23, 33
Are connected to the connector body 21 so as not to fall out.
Since there is no gap in the space 31 and the space 31 does not come and go, the contact can be maintained via the coil spring 24.

(How to use) First, the connector bodies 21, 3
1 is inserted into the hose members 11, 11. Since the insides of the connector bodies 21 and 31 are solid members, there is no cavity, and it is difficult to deform or break even when compressed (especially, the connector portion is easily subjected to an external force) by stepping or the like from the outside. .

Next, the clamp members 22, 32 are connected to the hose members 11, 11 by tightening bolts 22d, 32d.
To the outer periphery of Further, the connector bodies 21, 31
The nut 35 is engaged with the flange 31g of the connector main body 31, screwed with the male thread of the connector main body 21, and tightened. For this reason, the hose switches 10A and 10B can be reliably connected mechanically.

At this time, the first and second connection terminals 23 and 33 come into contact with the conductive member 12 of the hose switch 10 by fitting the hose member 11 with the connector bodies 21 and 31. Also, the first and second connection terminals 23,
The springs 33 are pressed against each other by a spring 24 provided at the end of the first connection terminal 23 so that they come into contact with each other. For this purpose, the hose switch 10
A and 10B can be reliably connected electrically.

(Effects of Embodiment) According to this embodiment,
There are various effects as follows. (1) Connect the connector bodies 21 and 3 to the end of the hose member 11.
By simply inserting 1, the conductive member (electric wire) 12 spirally formed inside and the connection terminals 23 and 33 can be connected. (2) Since the outer side is clamped by the clamp members 22 and 32 to keep the air (water) tightness between the hose switch 10 and the connectors 20 and 30, the hose switch can be securely fixed. (3) Since the connection terminals 23 and 33 are constantly pressed and kept in contact by the pressing spring 24, even if the nut 35 is loosened, the contact does not separate. (4) The elasticity of the hose member 11 and the O-rings (or packings) 26 and 36 make it possible to ensure waterproofing. (5) Projecting portions of clamp members 22 and 32 (steps on inner circumference)
The hose member 11 and the conductive member 12 are not caught by the truncated conical portions (steps on the outer periphery) of the connector bodies 21 and 31. (6) The connection can be reliably performed by the outer nut 35. (7) Since the insides of the connector main bodies 21 and 31 are solid, they are not crushed by an external force. (8) The connector terminals 23 and 33 are inserted and fixed, and can also serve as rotation stoppers. (9) Since the connector can be miniaturized, the undetected portion of the hose switch 10 can be made as small as possible. In addition, when wound on a hose reel, there is no possibility of unevenness due to steps.

[Second Embodiment] FIG. 3 is a view showing a second embodiment of the hose switch connector according to the present invention. In the embodiments described below, portions performing the same functions as those in the first embodiment are denoted by the same reference numerals, and redundant description will be omitted as appropriate. In the second embodiment, the first connector 20 of the first embodiment attached to the end of the hose switch 10 and the first sealing connector 40 for sealing the end of the first connector 20 are provided. It is provided with.

The first sealing connector 40 includes a connector main body 41, a nut 45, an O-ring 47, and the like. According to the second embodiment, the end of the hose switch 10 can be reliably sealed and sealed.

Third Embodiment FIG. 4 is a view showing a third embodiment of the hose switch connector according to the present invention. In the third embodiment, the second connector 30 of the first embodiment attached to the end of the hose switch 10 and a second sealing connector 50 for sealing the end of the second connector 30 are provided. It is provided with.

The second sealing connector 50 has a connector body 51 and the like. According to the third embodiment, the end of the hose switch 10 can be securely sealed and sealed.

[Fourth Embodiment] FIG. 5 is a view showing a fourth embodiment of the hose switch connector according to the present invention. The fourth embodiment is a cord connector 60 for connecting a cord (captire cable) 70 to the end of the first connector 20 (not shown) of the first embodiment attached to the end of the hose switch 10. The cord connector 60 includes a connector body 61, a nut 65, an O-ring 67, a metal fitting 68a for connecting the cord 70, and a screw 68b.
And a cover 69 and the like. In addition, the structure which connects with the 2nd connector 30 may be sufficient.

[Embodiment of Connection Method] FIG. 6 is a view showing an embodiment of a connection method of a hose switch connector according to the present invention. FIG. 6A shows the hose switch 10.
The three connectors are connected in series using connectors 20 and 30, and one end is connected to an outlet 8 of a detection device 80 with a power supply.
1 and the other end is sealed with a sealing connector 40. The detection device 80 with a power supply is a device that detects that one of the hose switches 10 has been stepped on and the inside conductive member 12 has come into contact, and issues an alarm or the like based on the detection signal.

FIG. 6B shows a detection device 80 with a power supply.
The multi-tap 20-1 (the second connector 20 is electrically connected in parallel) is attached via the electric wire 70, and the multi-tap 20-1 is connected directly or with the connector 60,
A hose switch 10 having connectors 30 and 20 attached to both ends is connected via an electric wire 70 to which 60-1 is attached, and the respective ends are sealed with a sealing connector 40. Note that the connector 60-1 is a connector having a structure to be connected to the second connector 30 described in the fourth embodiment.

(Modifications) Without being limited to the above-described embodiment, various modifications and changes such as the pin arrangement and the number of poles are possible, and these are also within the equivalent scope of the present invention. . (1) The clamp member may be swaged with a metal ring instead of bolting the split mold. Alternatively, the cover may be covered with a heat-shrinkable tube and crimped. In this case, since decomposition cannot be performed, quality can be easily maintained. (2) If sufficient strength is obtained, the hose members 11, 1
A through-hole communicating the internal space of the first space may be provided. (3) An adhesive may be applied instead of the packings.

[0042]

As described in detail above, according to the present invention, there is an effect that the connection can be securely made both mechanically and electrically without impairing the advantages of the hose switch.

[Brief description of the drawings]

FIG. 1 is a first view of a hose switch connector according to the present invention.
It is a figure showing an embodiment.

FIG. 2 is a view showing connection terminals of the connector according to the first embodiment.

FIG. 3 shows a second embodiment of the hose switch connector according to the present invention.
It is a figure showing an embodiment.

FIG. 4 shows a third embodiment of the hose switch connector according to the present invention.
It is a figure showing an embodiment.

FIG. 5 shows a fourth embodiment of the hose switch connector according to the present invention.
It is a figure showing an embodiment.

FIG. 6 is a view showing an embodiment of a method for connecting a hose switch connector according to the present invention.

FIG. 7 is a sectional view showing an example of a hose switch connected by a connector according to the present invention.

FIG. 8 is a view for explaining the operation of the hose switch of FIG. 7;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Hose switch 20 1st connector 21 Connector main body 22 Clamp member 23 First connection terminal 24 Spring 26 O-ring 30 2nd connector 31 Connector main body 32 Clamp member 33 Second connection terminal 35 Nut 36, 37 O-ring 40 , 50 Sealing connector 60 Wire connector 70 Wire 80 Detector with power supply

Claims (3)

[Claims] An insulative and elastic tubular hose member, and a plurality of spiral-shaped hose members fixed to an inner surface of the hose in all cross sections of the hose member so that a part of the surface is exposed to an internal space. In a hose switch connector for connecting an end of a hose switch including a flexible conductive member and an end of another hose switch, the hose switch is in close contact with the inside from the end of the hose member. First and second connector bodies to be inserted; axially fixed to the first and second connector bodies;
The first and second connection terminals that are partially exposed on the outer periphery of the connector body and contact the conductive member, and the ends of the first and second connection terminals are electrically pressed while being connected. An elastic member to be connected; a connecting member to connect the ends of the first and second connector bodies; and a first and a second to clamp the hose member to the outer periphery of the first and second connector bodies. A connector for a hose switch, comprising: a second clamp member. 2. A third or fourth connector body connected to an end of the first or second connector body of the hose switch connector according to claim 1, and the third or fourth connector body. Fixed in the axial direction,
A third or fourth connection terminal connected to an electric wire; and a connection member for connecting ends of the first or second connector body and the third or fourth connector body. Hose switch connector. 3. The hose switch connector according to claim 1, wherein the hose switch connector is connected to an end of the first or second connector body.
A fifth or sixth connector main body for sealing the ends thereof; and a connecting member for connecting the first or second connector main body to the fifth or sixth connector main body. Hose switch connector.