JPH04118534U - rod type switch - Google Patents

Abstract

(57) [Summary] (with amendments) [Purpose] To provide a small rod-shaped switch. [Structure] Conductor tube 4 fixed to the middle part of the tubular body 1
A contact 2 having an extended insulating rod 6 at one end and protruding from one end of the main body 1 at the other end is provided inside the main body 1, and is pressed by a spring 5 so that a part of the contact 2 protrudes from the main body 1. ,
The contact portion 7 a is insulatively supported with respect to the main body 1 , contacts the end of the conductor tube 4 , and is pressed in the direction of the conductor tube 4 by a spring 11 to provide the electrode rod 7 . A switch portion X is formed between the electrode rod 7 and the electrode rod 7. [Effects] The switch portion X can be opened and closed by pressing the contactor 2, and a compact rod-shaped switch can be obtained.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

The present invention relates to a rod-shaped switch with a thin outer diameter and a longer length than the outer diameter.

0002

[Conventional technology]

In recent years, due to security concerns, lighting equipment has been activated by opening and closing doors installed at entrances and exits. In some cases, a switch may be used to activate the alarm or to issue an alarm. For such uses Microswitches are commonly used switches.

0003

[Problem that the idea aims to solve]

However, even if this microswitch is small, the thickness of the frame around the doorway It is larger and its mounting position can be easily confirmed from the outside. Also, when using a large number of microswitches, it is necessary to select an inconspicuous location. This is extremely limited due to important and aesthetic requirements. For this reason, small The company is forced to use microswitches, but even small ones There were problems in that the mounting position was conspicuous and the durability was poor.

0004

[Means to solve the problem]

The rod-shaped switch S of the present invention to solve the above-mentioned problem includes a tubular body 1; A conductor pipe 4 fixed to the middle part of the main body 1, and an insulator extending inside the conductor pipe 4. A contact 2 having an edge bar 6 at one end and the other end protruding from one end of the main body 1, and this contact A spring 5 presses so that a part of the spring 2 protrudes from the main body 1, and a spring 5 that is completely pressed against the main body 1. The contact portion 7a contacts the end of the conductor tube 4, and the spring 1 1, the electrode rod 7 is pressed in the direction of the conductor tube 4, and the conductor tube 4 and the electrode A switch part X is formed on the contact part 7a of the rod 7.

[0005]

[Effect]

The rod-shaped switch S according to the present invention can be set in a small diameter hole, and the main body By pushing in the contactor 2 protruding from one end of the conductor tube 4 under pressure, and the electrode rod 7 electrically connected to the switch section X. It can be opened and closed. Therefore, the cross section is extremely small, rod-shaped and durable. A switch S can be provided.

[0006] Further, the tip of the contactor 2 is pressed with a predetermined elastic force by a spring 5. Since it protrudes from the tip of the main body 1, the elasticity of this spring 5 is used to hold it in place. It can be used in devices, etc. that inspect the fixation state of parts by applying force.

[0007]

【Example】

Next, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a sectional view of a rod-shaped switch according to an embodiment of the present invention. S has a contact 2 made of a metal rod protruding from the tip of a main body 1 made of a cylindrical metal tube. This contactor 2 has a length extending to the center of the main body 1. There is. The rear end 2a of this contactor 2 is inserted into the center of the main body 1 and is crimped. It is inserted into the cylindrical conductor tube 4 fixed by 3, and makes contact with the front end of this conductor tube 4. A spring 5 is inserted between a part of the tentacle 2 and a disk portion 2b that is fully expanded inside the main body 1. A thick walled portion is formed at the front end of the main body 1 by elastically inserting the disk portion 2b under a predetermined pressure. It is pressed against 1a and locked.

[0008] Furthermore, an elongated hole (not shown) is opened in the axial direction of the rear end portion 2a. An insulating rod 6 is inserted and fixed therein. The tip of this insulating rod 6 is connected to the conductor tube 4. It extends to the vicinity of the end. Further, 7 is an electrode rod, which is inserted into the main body 1. It is supported by two insulating tubes 8 and 9, and has a bulged tip to form a contact portion 7a, The rear end portion 7b passes through the insulating tube 9 and is an electrode tube body fitted and fixed into the insulating tube 9. It is compressed by a spring 11 inserted in 10.

[0009] Therefore, the contact portion 7a formed at one end of the electrode rod 7 is located at the center of the main body 1. The electrode rod 7 is held in this way. In the state shown in Fig. 1, the end of the conductor tube 4 and the A switch portion X (contact portion) is formed between the pole rod 7 and the contact portion 7a. This switch section X forms a normally closed contact in this embodiment, but The length of the insulating rod 6 is shortened to increase the gap between the insulating rod 6 and the contact portion 7a. Therefore, even if the stroke of contact 2 is increased and this contact 2 moves a little, It is possible to prevent the switch S from malfunctioning by preventing it from operating easily. can.

0010 When using a normally closed switch S with this structure, the main body 1 should be moved as shown in Figure 3. It is installed by making a hole in a frame 15 at the periphery of a window or an entrance of a building, etc. and embedding it. So As shown in FIG. 2, the main body 1 and the electrode tube body 10 fixed to the rear end of the main body 1 are Electric wires 17 and 18 are connected between them and used as signal lines for the control device. FIG. 2 is a cross-sectional view showing how the rod-shaped switch S is installed, and shows the installation state of the rod-shaped switch S. A mounting hole 16 is opened in the part 15, and the switch S is press-fitted into this mounting hole 16 and fixed. do. Then, wires 17 and 18 are connected to the main body 1 and the electrode tube body 10, and these are shown in the diagram. Wire to a control device that is not installed. In addition, if necessary, a synthetic resin material may be attached to the front end of the contact 2. The cap body 19 is fitted and protected.

[0011] Reference numeral 20 in FIG. 3 is a door, and when it comes into contact with the frame 15, the The contact 2 of the switch S that has been pressed is pressed through the cap 19 and pushed into the main body 1. In this case, the tip of the insulating rod 6 fixed to the end of the contact 2 is shaped into one end of the electrode rod 7. Press the front end surface of the contact portion 7a that has been formed, and connect the end of the conductor tube 4 and this contact portion 7a. Open the switch part X by forming a gap between the parts, and as shown in FIG. Electricity between the electric wires 17 and 18 connected to the electrode tube body 10 fixed at the other end This will turn off the circuit.

0012 To give an example of specific dimensions of the rod-shaped switch S according to the present invention, the diameter of the main body 1 is is 3 mm, the length is approximately 30 mm, the protrusion length of the contact 2 is 7 mm, and the protrusion of the electrode tube body 10. The length is about 5 mm. Therefore, the rod-shaped switch S It can be used by inserting it into a hole at a predetermined position. Another method of using the rod-shaped switch S according to the present invention is as a connector of a wire harness. There is a test to check the connection between the housing and the terminals that make up the terminal. [Usage example-1] The first example of use is the detection of connector fools and proofs, and the detection of foreign parts. That is, as shown in FIG. 4, the contact 2 of the rod-shaped switch S fits into the recess 22 of the connector If the structure is such that contact 2 is not pressed, switch section X remains on. Yes, this connector 21 is determined to be normal.

[0013] On the other hand, as shown in FIG. 5, there is no recess in the connector 21a, so the contact 2 When the connector 21a is pressed and the switch moves backward, the normally closed switch section X turns off. Therefore, it is determined that the connector 21a in this case is a different part. This rod-shaped The on/off of switch S is used to detect whether a good part or a defective part is present. [Usage example-2] The second usage example is the housing that constitutes the connector 21 of the wire harness. This is a test to determine whether the terminal 22 is fixed at a predetermined position. As shown in Figure 6 When the terminal 22 is in the retracted state, the contact 2 of the rod-shaped switch S is connected to the terminal 22. Since there is no contact, connect the wire harness to which the terminal 22 is fixed, the rod-shaped switch S, and this. No electrical circuit is formed between the connected electric wires 18. On the other hand, as shown in Figure 7 If the terminal 22 of the connector 21 is too protruding, the contact 2 of the rod-shaped switch S The insulating rod 6 moves back against the elastic force of the spring 5 of No. 1, and the insulating rod 6 touches the contact portion 7a of the electrode rod 7. Since the electrical connection between the contact portion 7a and the conductor tube 4 is cut off by pressing, it is a normally closed type. Switch section X is turned off. In this way, using the on/off switch S, To detect whether a terminal 22 of a connector 21 is pulled in or out too much. [Usage example-3] The third example of use is the detection of the rising of a lance. This method is shown in Figure 8. The lance 24 and the terminal 23 are accurately fitted in the connector and are in the specified position. If the lance 24 is seated, the contact 2 of the rod-shaped switch S will not come into contact with this lance 24. Therefore, the switch part X formed by the conductor tube 4 and the electrode rod 7 in FIG. This indicates that the lance 24 and terminal 23 are properly fitted. judge.

[0014] On the other hand, if the lance 24 is detached from the terminal 23 and raised as shown in Fig. 9, In this case, the contact 2 of the rod-shaped switch S contacts the lance 24 and is pushed back. Since switch section X is turned off, the change in switch section X from on to off causes It is determined that the fitted state between the lance 24 and the terminal 23 is abnormal.

[0015]

[Effect of the idea]

The rod-shaped switch according to the present invention includes a tubular body and a middle part of this body. One end has a conductor tube with an insulating rod extending inside the conductor tube, and the other end is connected to the main body. A contact protrudes from one end, and a portion of this contact is pressed so that it protrudes from the main body. a spring, which is insulatively supported with respect to the main body, and has a contact portion connected to the end of the conductor tube; and an electrode rod that is pressed in the direction of the conductor tube by a spring. A switch portion is formed at the contact portion between the conductor tube and the electrode rod.

[0016] Therefore, the whole body is rod-shaped like a nail, and the operating parts exposed to the outside are connected. Since the tip of the probe is in the shape of a thin rod, there is no particular problem in selecting the mounting position. It can be effectively used as a switch for parts that require security. In addition, since we use rod-shaped parts and the whole body is organized into a rod shape, it is a sturdy switch. can be provided.

[0017] Furthermore, there is a rod-shaped switch that has a switch part that turns on and off by moving the contact back and forth. Various tests such as testing the installation status of wire harness connector terminals using tests can be carried out.

[Brief explanation of drawings]

FIG. 1 is an enlarged side sectional view of a switch.

FIG. 2 is a sectional view showing an example of how to use the switch.

FIG. 3 is an explanatory view showing a switch according to the present invention attached to a portion of a peripheral frame body that opens and closes a door.

FIG. 4 is an explanatory diagram of inspection of normal parts in Usage Example 1.

FIG. 5 is an explanatory diagram of inspection of abnormal parts in Usage Example 1.

FIG. 6 is an explanatory diagram of a retracted state of a terminal in usage example 2;

FIG. 7 is an explanatory diagram of a state in which the terminals protrude too much in usage example 2;

FIG. 8 is an explanatory diagram of normal fitting of the lance and the terminal in Usage Example 3.

FIG. 9 is an explanatory diagram of a half-fitted state of the lance and the terminal in Usage Example 3;

[Explanation of symbols]

S switch
Spring 7a Contact portion 7b Rear end portion.

Claims (1)

[Scope of utility model registration request] Claim 1: A tubular body, a conductor tube fixed to the middle part of the body, and an insulating rod extending inside the conductor tube at one end, the other end protruding from one end of the body. a spring that presses a part of the contact so that it protrudes from the main body; a spring that is insulatively supported with respect to the main body; A rod-shaped switch comprising an electrode rod that is pressed in a direction, and a switch portion is formed at a contact portion between the conductor tube and the electrode rod.