JPH1069832A - Pushbutton switch - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily seal the inside and outside of a body to achieve a seal type pushbutton switch by providing a locking means on the first end of a control. SOLUTION: When the end 24 of a control is depressed, the control 2 freely slides in an opening 12 in a body 1, and a tilted part 21 provided on a firs tend 23 makes siding contact with a push button 6 to cause the push button 6 to depress the spring of a movable contact 41. When the spring of the movable contact 41 is pressed, the movable contact 41 leaves a fixed contact 5, opening a normally closed contact 52 and closing a normally open contact 51. When the depressing is stopped, the control 2 is slid by a biasing spring 3 in the direction in which it is brought out, and is locked by a locking projection 25 and an engagement recess 22 without being pulled out from the opening 12 in the body 1. Therefore, the possibility of the control 2 being pulled out in the direction in which the end 24 is brought out is eliminated, and a seal type can be achieved by easily sealing the inside outside and of the body 1 without providing an externally open through hole.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a push button switch for controlling energization of connected electric equipment.

[0002]

2. Description of the Related Art Conventionally, as a push button switch of this kind,
7 to 9 exist. This device has an opening A1 having an opening and an orthogonal hole A2 which is in communication with the opening A1 and which is substantially orthogonal to the side wall A3 and the orthogonal wall A4.
The body A thus formed and the inclined portion B1 on the base end side are provided, and when the distal end portion B2 derived from the opening of the body A is pressed, it slides slidably in the opening A1. An operating element B, an urging spring C for urging the operating element B in the extending direction, and a movable contact plate D having a plate-shaped movable contact D1 provided at an end thereof;
And a push button F that slides on the inclined portion B1 of the operation element B to press the movable contact plate D to move the movable contact D1 toward and away from the fixed contact E.

[0003] More specifically, the body A is provided with an elongated through hole A5 and is fixed to a base G from which the terminal G1 is led out. The operating element B is provided with a locking projection B3 on the base end side and locked with the through hole A5,
It is prevented from being pulled out in the lead-out direction.

[0004]

In the above-described conventional push button switch, when the distal end portion B2 of the operating element B is pressed, the push button F pushes the movable contact spring D to move the movable contact spring D.
1 can be connected to and separated from the fixed contact E to control the energization of the electric device.

However, when it is used outdoors or on a vehicle, moisture penetrates into the body A. It is necessary to seal the inside and the outside of the body A in order to prevent the invasion of moisture, and a rubber cap is provided at the tip of the operation element B and a packing is provided between the base G and the base. However, moisture penetrates through the through-hole A5, which prevents the operator B from being pulled out in the lead-out direction, and a sealing structure for sealing the through-hole A5 is required.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and it is an object of the present invention to provide a seal-type push button which can easily seal an inside and an outside of a body after locking an operation member and a body. To provide a switch.

[0007]

According to a first aspect of the present invention, there is provided an opening having a substantially bottomed box shape and having an opening on the side opposite to the bottom. The body formed with the side wall and the orthogonal wall, each of which has an orthogonal hole that is substantially orthogonal to the body, and an inclined portion provided on the base end side, and when the distal end derived from the opening of the body is pressed, the opening hole is formed. An operating element that slidably slides, an urging spring that urges the operating element in a drawing direction, a movable contact plate having a plate-shaped movable contact at an end, and a sliding contact with an inclined portion of the operating element. A push button that presses the movable contact plate to move the movable contact to and away from the fixed contact,
A seal-type push-button switch for sealing the inside and the outside of a body, wherein the operation element has a structure in which a locking means for locking to a side wall or an orthogonal wall of the opening is provided on the base end side. It is.

According to a second aspect of the present invention, in the first aspect, the operating member is provided with an engaging recess extending from the inclined portion to engage with the push button, and the locking means is provided. Is formed with a locking projection that projects in a direction substantially perpendicular to the drawing-out direction and locks with the orthogonal wall of the body.

According to a third aspect of the present invention, in the second aspect of the present invention, the operation element has a cutout provided on a side opposite to the locking projection so that the base end is bent in the orthogonal direction. It has a configuration.

According to a fourth aspect of the present invention, in the first aspect, the locking means projects in a direction substantially orthogonal to the extending direction and forms a stepped portion of the side wall forming two stages of the opening holes. And at least one of them is formed with a stepped portion locking projection.

According to a fifth aspect of the present invention, in the fourth aspect of the present invention, another notch portion cut out along the lead-out direction so as to form both twin pieces is provided at a base end portion of the operation element. The configuration is provided.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of the present invention will be described below with reference to FIGS.

Reference numeral 1 denotes a body, which is formed of a synthetic resin insulating material to form a box with a bottom having an opening on one side and a bottom 11, an opening 12 formed on a side wall 13, and an opening 14 formed on the bottom. It is open to the outside on the side opposite to 11. Further, an orthogonal hole 15 which is communicated with the opening hole 12 and which is substantially orthogonal is formed by an orthogonal wall 16 so that a movable contact plate 4 described later can be formed.
The housing space 17 housing the opening and the opening hole 12
Are communicated with each other on the bottom 11 side.

Reference numeral 2 denotes an operator, which is formed of a synthetic resin insulating material in the shape of a bar, and has an inclined portion 21 and an engaging recess 22 extending from the bottom surface of the inclined portion 21 on the base end portion 23 side, respectively. The distal end portion 24 is inserted into the opening hole 12.
Is drawn out of the opening 14 of the body 1 and slidably slides in the opening hole 12 when pressed.

Further, a locking projection 25 as locking means is provided.
The opening portion 12 of the orthogonal wall 16 of the body 1 is provided at the base
It is locked with the side opening end. Further, a notch 26 is provided on the opposite side of the locking projection 25 along the lead-out direction of the distal end portion 24, and the base end portion 23 is formed so as to bend in an orthogonal direction.

Reference numeral 3 denotes a biasing spring 3, which is a rope, formed in a coil shape, inserted into the opening hole 12, and has one end thereof.
The other end abuts on the base 11 of the operation element 2 at the bottom 11 thereof,
The operator 2 is urged in the leading direction.

Reference numeral 4 denotes a movable contact plate which is formed in a plate-like and long shape by using a copper alloy having elasticity, a movable contact 41 made of a silver alloy is provided at one end on both sides, and the other end is provided on the body 1.
It is fixed to. Reference numeral 5 denotes a fixed contact, which comprises a normally open contact 51 and a normally closed contact 52 made of a silver alloy.
Contact with.

Reference numeral 6 denotes a push button, which is formed of a synthetic resin insulating material into a rod shape, is inserted into the orthogonal hole 15 of the body 1, and
The other ends are in contact with the movable contact plates 4 respectively.

The rubber cap 7 is formed in a film shape with elastic rubber, is provided at the distal end 24 of the operation element 2, and has the distal end 24 and the opening 14 of the body 1.
To seal the inside and outside of the body 1.

The base 8 is provided with terminals 81 connected to the movable contact plate 4 and the normally open contact 51 and the normally closed contact 52 of the fixed contact 5 by using a synthetic resin insulating material. It is fixed to the body 1 at the opening surface.

The operator 2 has a notch 26 formed with a locking projection 2.
5, the base end portion 23 is fitted into the opening hole 12 of the body 1 in a state where the base end portion 23 is bent in a direction substantially orthogonal to the leading-out direction of the distal end portion 24. When a predetermined amount is fitted, the locking projection 25 provided on the base end portion 23 moves in a substantially orthogonal direction and locks on the opening end of the orthogonal wall 16 of the body 1. Next, the push button 6 is inserted into the orthogonal hole 15 of the body 1 and engages with the engaging concave portion 22, that is, the operating element 2 is double locked by the locking projection 25 and the engaging concave portion 22.

The operation of the above will be described. When the distal end portion 24 of the operation element 2 is pressed, the operation element 2 slides slidably in the opening hole 12 of the body 1, and the inclined portion 21 provided on the base end portion 23 side pushes the push button 6. Upon sliding contact, the push button 6 presses the movable contact 41 spring. When the movable contact 41 spring is pressed, the movable contact 41 comes into contact with and separates from the fixed contact 5 and the normally closed contact 5
2 and the normally open contact 51 is closed. When the pressing is stopped, the operating element 2 slides in the leading direction by the biasing spring 3 and is locked by the locking projection 25 and the engaging recess 22 without being removed from the opening 12 of the body 1. .

In the push-button switch according to the first embodiment, as described above, since the locking projection 25 is provided on the base end 23 of the operation element 2, the operation element 2 is inserted into the opening 12 of the body 1. When fitted, the locking projection 25 locks with the orthogonal wall 16 of the opening hole 12, so that the operating element 2 is not pulled out in the leading-out direction of the distal end portion 24, and the through-hole which is opened to the outside as in the conventional case. Without providing a hole, the inside and outside of the body 1 can be easily sealed to realize a seal type.

Further, since the engaging recess 22 is provided in the operating member 2, the engaging recess 22 extending from the inclined surface is engaged with the push button 6, that is, the operating member 2 is Locking is performed by both of the stop projections 25, and the locking strength is improved, so that the operation element 2 can be locked to the body 1 more reliably.

Since the notch 26 is provided at the base end 23 of the operation element 2 on the side opposite to the locking projection 25, when the operation element 2 is fitted into the opening 12 of the body 1, the operation element 2 The base portion 23 is bent in a direction perpendicular to the lead-out direction, and the locking projection 25 can be easily locked to the orthogonal wall 16 of the body 1 without requiring a large fitting input.

In the first embodiment, the operating member 2 is provided with the engaging concave portion 22 extending from the inclined portion 21 and engaging with the push button 6. However, the engaging concave portion 22 is engaged with the orthogonal wall 16 of the body 1. Stop projection 2
When the locking strength can be achieved with 5, it is not necessary to provide it and there is no limitation.

In the first embodiment, the notch 26 is provided on the operation element 2 so that the base end 23 bends in the orthogonal direction. However, when the operation element 2 is formed thin and easily bends in the orthogonal direction. May not be provided and is not limited.

A second embodiment of the present invention will be described below with reference to FIGS. In the second embodiment, functions different from those in the first embodiment will be described. Members having substantially the same functions as those in the first embodiment are denoted by the same reference numerals. In the second embodiment, the locking projection 25 and the notch 26 are not provided on the operation element 2.

The body 1 is formed in a box shape with a bottom and an opening on one side. An opening hole 12 is formed in two steps with a side wall 13 to provide both stepped portions 12a, and an opening 14 is formed on the side opposite to the bottom 11. Open to the outside. Further, an orthogonal hole 15 which is communicated with the opening hole 12 and is approximately orthogonal is formed by an orthogonal wall 16.

The operating element 2 is formed in a rod shape and has an inclined portion 21.
An engaging recess 22 extending from the bottom surface of the inclined portion 21 is provided on the base end portion 23 side, and the distal end portion 24 is led out of the opening portion 14 of the body 1 in a state of being inserted into the opening hole 12, When pressed, it slides freely.

Further, a stepped portion locking projection 2 serving as locking means
Numerals 7 protrude to both sides in the direction perpendicular to the leading-out direction of the distal end portion 24, are provided at the proximal end portion 23, and are engaged with both step portions 12 a of the side wall 13 forming the two-stage opening hole 12. Further, another notch 28 is formed along the leading end 23 along the leading-out direction.
To form the twin pieces 29.

The operating element 2 has the step portion locking projection 27 and another notch portion 28 provided on the base end portion 23, so that the base end portion 23 extends in a direction substantially perpendicular to the direction in which the distal end portion 24 is led out. In a bent state, it is fitted into the opening 12 of the body 1. When a predetermined amount is fitted, the step locking projection 27 moves in a substantially orthogonal direction, and locks with both the step 12a of the side wall 13. Next, the push button 6 is inserted into the orthogonal hole 15 of the body 1 and engages with the engaging concave portion 22, that is, the operating element 2 is double locked by the locking projection 25 and the engaging concave portion 22.

In the push-button switch according to the second embodiment, as described above, both step portions 12a of the side wall 13 forming the two-stage opening hole 12 are provided, and the step portion protruding in the direction orthogonal to the extending direction is provided. Since the part locking projection 27 is provided on the base end 23 of the operation element 2, when the operation element 2 is fitted into the opening hole 12 of the body 1, the stepped part locking projection 27 is
The operator 2 can be easily locked to the body 1 by locking in the direction orthogonal to the direction a, and the locking strength is improved, so that the operator 2 can be securely locked to the body 1.

Also, another notch 28 cut out along the lead-out direction is provided at the base end 23 of the operating element 2 to form both twin pieces 29, so that the operating element 2 is opened to the opening of the body 1. When the twin pieces 29 are fitted into the holes 12, the two twin pieces 29 are bent in the orthogonal direction, and the step-portion locking projection 27 can be easily locked with the both step portions 12a without requiring a large fitting input.

In the second embodiment, the step locking projections 27 are locked with the two step portions 12a of the side wall 13 forming the two-step opening hole 12, but not the two steps but one step opening. It may be engaged with the concave groove provided in the side wall 13 forming the hole 12, that is, it may be engaged with the side wall 13 of the opening hole 12, and is not limited.

Further, the stepped portion locking projections 27 are fixed to the two stepped portions 12a of the side wall 13. However, when a large locking strength is not required, only one of them may be used.
It suffices to lock at least one of a and is not limited.

[0037]

According to the first aspect of the present invention, the locking means is provided on the base end side of the operation element. Therefore, when the operation element is fitted into the opening of the body, the locking means is moved to the side wall or the orthogonal direction of the opening. Locking to the wall prevents the operator from being pulled out in the extension direction of the distal end, and easily seals the inside and outside of the body without providing a through hole that opens to the outside unlike the conventional case. Thus, a seal type can be realized.

According to the second aspect, in addition to the effects of the first aspect, since the engaging recess is provided in the operation member and the locking means is formed by the locking projection, the recessed portion extends from the inclined surface. The engaging recess provided is engaged with the push button, and the locking projection is further locked with the orthogonal wall of the body, that is, the operating element is locked by both the engaging recess and the locking projection. The strength is improved, and the operator can be securely locked to the body.

According to the third aspect of the invention, in addition to the effect of the second aspect, the notch is provided at the base end of the operator on the side opposite to the locking projection. When fitted into the opening, the base end of the operation element is bent in a direction perpendicular to the lead-out direction, and the locking projection can be easily locked to the orthogonal wall of the body without requiring a large fitting input.

According to a fourth aspect of the present invention, in addition to the effect of the first aspect, an opening is formed in two steps with side walls to provide a stepped portion 11a, and the locking means is provided in a direction perpendicular to the extending direction. When the operating element is fitted into the opening hole of the body, the operating element is engaged with at least one of the steps so that the operating element is connected to the body. In addition to being able to be easily locked, if the stepped portion locking projections are locked to both stepped portions, the locking strength is improved, and the operator can be reliably locked to the body.

According to a fifth aspect of the present invention, in addition to the effect of the fourth aspect, another notch portion cut out along the lead-out direction is provided at the base end portion of the operation element, and the two twin pieces are provided. Is formed, when the operator is inserted into the opening of the body,
Both twin pieces bend in a direction perpendicular to the lead-out direction, and the step-portion locking projection can be easily locked to at least one of the step portions without requiring a large fitting input.

[Brief description of the drawings]

FIG. 1 is a front sectional view showing a first embodiment of the present invention.

FIG. 2 is an enlarged front view showing a locked state between the operation element and an orthogonal wall.

FIG. 3 is a plan view of the same.

FIG. 4 is a front sectional view showing a second embodiment of the present invention.

FIG. 5 is a plan view of the same.

FIG. 6 is an enlarged plan view showing a locked state between the above-described operator and an orthogonal wall.

FIG. 7 is a front sectional view showing a conventional example.

FIG. 8 is a front view of the same.

FIG. 9 is a plan view of the same.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Body 11 Bottom part 12 Opening hole 12a Step part 13 Side wall 14 Opening part 15 Orthogonal hole 16 Orthogonal wall 2 Operator 21 Inclination part 22 Engagement concave part 23 Base end part 24 Tip part 25 Locking projection (locking means) 26 Notch Part 27 stepped part locking projection (locking means) 28 another notch part 29 double twin pieces 3 biasing spring 4 movable contact plate 41 movable contact 5 fixed contact 6 push button

Claims (5)

[Claims] 1. A body having a substantially bottomed box shape, an opening having an opening on the side opposite to the bottom, and an orthogonal hole communicating with the opening and being substantially orthogonal with the side wall and the orthogonal wall, respectively. An operator provided with an inclined portion on the base end side and slidably slidable in the opening when the distal portion derived from the opening of the body is pressed, and biases the operator in the extending direction. An urging spring, a movable contact plate having a plate-shaped movable contact at an end thereof, and a push button for slidingly contacting the inclined portion of the operation member to press the movable contact plate and to move the movable contact to and away from the fixed contact are provided. A seal-type push-button switch for sealing the inside and the outside of the body, wherein the operating means is provided on the base end side with locking means for locking with a side wall or an orthogonal wall of the opening. A push button switch characterized by the following. 2. The operating element is provided with an engaging recess extending from the inclined portion to engage with the push button, and the locking means projects in a direction substantially perpendicular to the lead-out direction to form the body. 2. The push button switch according to claim 1, wherein the push button switch is formed with a locking projection that locks with the orthogonal wall. 3. The push button switch according to claim 2, wherein the operating element has a cutout provided on a side opposite to the locking projection so that the base end bends in the orthogonal direction. 4. The stepped locking means is a stepped portion locking projection that projects in a direction substantially perpendicular to the lead-out direction and locks at least one of the stepped portions of the side wall that forms the two-stage opening. 2. The push-button switch according to claim 1, wherein the push-button switch is formed with the switch. 5. The pusher according to claim 4, wherein another notch portion cut out along the lead-out direction so as to form both twin pieces is provided at a base end portion of the operation element. Button switch.