JPH0155731B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a pulse switch, which is used in automatic door lock mechanisms of automobiles and the like.

An example of a conventional pulse switch is the one shown in FIG.

That is, fixed contact terminal A1 and swing contact terminal A
A swing contact terminal A2 is placed under the terminal portion A having the
An auxiliary piece B1 that can swing upward facing the bottom surface of the
Spring B2 is capable of swinging clockwise in plan view.
An intermediate member B pivotally supported via a shaft pin B4 is provided on the support member B3 which is biased and held directly below the swinging contact terminal A2, and furthermore, an auxiliary piece B1
A linear operation input member C is provided with a wedge-shaped protrusion C1 that can pass through the direct flame on the lower surface.When the input member C moves forward and back, the auxiliary piece B1 is lifted onto the wedge surface of the protrusion C1, and the auxiliary piece B1 lifts the swinging contact terminal A2 and brings it into contact with the fixed contact terminal A1 to enable energization and generate a pulse signal, and during the return movement in which the protrusion C1 passes under the auxiliary piece B1 and then returns, the protrusion C1 Auxiliary piece B is attached to the front end of
Hook the side end surface of 1 and swing the intermediate member B clockwise, then detach and return. Since the auxiliary piece B1 cannot be lifted, make sure that the fixed contact terminal A1 and the swinging contact terminal A2 do not come into contact with each other. This is what I did.

However, in such a conventional pulse switch, the terminal part A, the intermediate member B, and the input member C must be provided separately, and especially in the case of the intermediate member B, a spring B2 is interposed to prevent the reciprocating rotation. In addition, the auxiliary piece B1 must also be rotated in the vertical direction, making it difficult to maintain the precision of the positional relationship, making it difficult to manufacture, and making the structure complicated and expensive. Further, since the intermediate member B is rotatable and the input member C is linear, they must be supported separately, which may result in an increase in size and difficulty in handling.

The present invention has been made in view of these conventional problems, and has a simple structure that operates reliably and can be manufactured at low cost.The present invention also has a swinging operation using a rotary swinging lever as an input member. The purpose is to solve the above problems.

In order to achieve such an object, the present invention includes a first rotor to which an operation input lever is fixed and swings back and forth, and a first rotor to which a spring member is fixed.
A second rotor coaxially rotated by the rotor is pivotally supported by a case, and the case is provided with a fixed contact and an engagement/disengagement protrusion, and the first rotor and the second rotor engage with each other through play. , an elastic contact is provided at one end of the spring member, and an engagement end is formed at the other end that engages with the engagement and disengagement protrusions of the case at the front and back, but overcomes the engagement and disengagement protrusions when a force exceeding a predetermined level is applied. The first rotor and the spring member are engaged with each other so that when the first rotor is at one end of the play, they do not come into contact with each other, but after passing through the range of play, they come into contact with the other end and float the resilient contact. When the first rotor moves forward, the engaging end of the spring member comes into contact with the front part of the engaging/disengaging protrusion of the case and is temporarily held engaged, and the first rotor passes through the range of play and comes into contact with one end. The second rotor is rotated forward by pushing the second rotor, and while the engaging end passes over the engagement/disengagement protrusion of the case, the elastic contact of the spring member passes while contacting the fixed contact of the case, and the first rotor moves backward. At this time, the engagement end of the spring member comes into contact with the rear part of the engagement/disengagement protrusion of the case and is temporarily held engaged, and the first rotor passes through the range of play and moves to the other end to push the second rotor. Each member is arranged so that the resilient contact point of the spring member remains floating and passes through the fixed contact point of the case while the engaging end passes over the engagement/disengagement protrusion of the case by rotating backward. The pulse switch has a simple structure in which the first rotor to which the operation input lever is fixed and the second rotor supporting the spring member are coaxially supported on the case, and each member is placed in an appropriate positional relationship. By arranging the input lever, a pulse signal can be emitted only once while the operation input lever swings back and forth.

Hereinafter, various embodiments of the present invention will be described based on the drawings.

2 and 3 show an embodiment of the present invention, in which a pulse switch 1 is supported by a first rotor 3, a second rotor 4, and a second rotor 4 inside a housing portion 21 of a case 2. A spring member 5 is housed therein.

A connector portion 23 having two terminals 22, 22 is formed on one side of the case 2, a mounting seat portion 24 is formed on the bottom, and a lid 25 is attached to the opening of the housing portion 21. Insertion holes 26, 26, . . . for mounting screws are bored in the flange on the outer periphery of the opening. Fixed contacts 27, 27 connected to the terminals 22, 22 are provided on one side of the bottom surface of the housing portion 21.
The other side is slightly higher, and a locking/disengaging protrusion 28 is provided on the upper surface thereof.

A pivot shaft 11 is inserted into the center of the bottom surface of the accommodating portion 21 from the outside and is rotatably supported, and the operation input lever 6 is fixed to the outer end of the pivot shaft 11 . The inner end 12 of the pivot 11 projects inward through the center of a pivot boss 13 provided inwardly on the bottom surface of the housing portion 21, and the pivot boss 13 and the pivot 11 are concentric. , the first rotor 3 rides on the tip of the pivot boss 13.
is fixed to the tip of the pivot 11, and the washers 14,
It is prevented from coming off by an E-ring 15 or the like, and the second rotor 4 is rotatably supported by the pivot boss 13.

The first rotor 3 and the second rotor 4 are engaged with each other, with the first rotor 3 loosely fitting into the play between the spring member support portion 41 and the stopper portion 42 of the second rotor 4.
The spring member 5 fixed to the spring member support part 41 with a screw 43 is made of a conductive metal plate spring material in this embodiment, and has bifurcated elastic contacts 51, 51 at one end, and at the other end, Engagement ends 52 are formed at the front and rear sides of the engagement/disengagement protrusion 28 of the case 2, but can be overcome by a force exceeding a predetermined level.

The first rotor 3 and the spring member 5 are
When it is at one end of the play, that is, when it is on the side of the spring member support part 41, it does not abut, and when it is at the other end, that is, when it is in contact with the stopper part 42, the resilient contact 51, By abutting and lifting 51 from below, they can be engaged in a floating manner. Further, the swing angle of the second rotor 4 is determined by the protruding piece 44 provided on the second rotor 4.
It is restricted to swing between the stoppers 20 and 29.

Then, when the first rotor 3 moves forward, that is, the second
When rotating clockwise in the figure, the spring member 5
The engaging end 52 of the front part 2 of the engaging/disengaging protrusion 28 of the case 2
8a and is temporarily engaged and held, and the first rotor 3 is at one end of the play with the second rotor 4, and when it comes into contact with the spring member support part 41 and pushes it, the second rotor 4 is rotated forward. By moving the engaging end 52 into the engaging/disengaging protrusion 2
8, the elastic contact 51 of the spring member 5,
51 passes while contacting the fixed contacts 27, 27 of the case 2, and when the first rotor moves back, that is, when it rotates counterclockwise in FIG. 2, the spring member 5
The engaging end 52 of the rear part 2 of the engaging/disengaging protrusion 28 of the case 2
8b and is temporarily engaged and held, and the first rotor 3 moves to the other end of the play and the stopper portion 42
The second rotor 4 is pressed against the second rotor 4 and rotated backward, and while the engaging end 52 rides over the engaging/disengaging protrusion 28, the resilient contacts 51, 51 of the spring member 5 remain floating and the fixed contacts of the case 2 are moved. Each member is arranged in a positional relationship that allows it to pass through 27, 27 without contacting it.

Next, the operation will be explained with reference to FIG. 4, which is a conceptual diagram developed and shown linearly along the circumference.

That is, state (a) is the state shown in FIGS. 2 and 3 and indicates a standby state, in which the protruding piece 44 of the second rotor 4 comes into contact with the stopper 20 of the case 2 and stops, and the first The rotor 3 comes into contact with the stopper part 42 of the second rotor 4 and stops in a pressed state, and is at the other end of the play, and the resilient contact 51 of the spring member 5 is pushed from below by the first rotor 3 and floats. . When an input is made to the operation input lever 6, the first rotor 3 rotates in the forward direction, and moves to the left in FIG. 2nd rotor 4
Even if the spring member 5 attempts to rotate in the forward direction, the engaging end 52 of the spring member 5 will not be able to move forward, but the engaging end 52 of the spring member 5 will be stuck in the front part 28a of the engaging/disengaging protrusion 28 of the case 2.
The first rotor 3 moves within the play and reaches one end of the play, and the spring member 5 is no longer pushed, so it does not float and connects to the fixed contact 27 of the case 2. Contact is possible and state (b)
become. State (c) when the first rotor 3 moves further
The engaging end 52 rides on the engaging/disengaging protrusion 28 as shown in (d), and further climbs over it as shown in state (d). situation
In (c), the resilient contact 51 of the spring member 5 is in contact with the fixed contact 27 of the case 2, and thus the terminal 2
2 and 22 are electrically connected, and during the transition from state (b) to state (d), the resilient contact 51 passes over the fixed contact 27 and emits a pulse signal corresponding to the passing time.

When the operation input lever 6 returns, the first rotor 3 rotates in the backward movement direction and moves to the right in FIG. At this time, as shown in state (d), the spring member 5
The engaging end 52 of the rear part 2 of the engaging/disengaging protrusion 28 of the case 2
8b, the second rotor 4 is temporarily held engaged, and only the first rotor 3 moves, resulting in state (e).
As shown in FIG.
, and presses the spring member 5 from below to release the resilient contact 5.
Float 1. When the first rotor 3 is further moved, the second rotor 4 rotates in the backward movement direction with the resilient contact 51 floating, and the spring member 5 is rotated as shown in state (f).
The engaging end 52 of the case 2 rides on the engaging/disengaging protrusion 28 of the case 2, and then climbs over it to return to the original state (a). During that time, the resilient contact 51 passes above the fixed contact 27 while floating, so no pulse signal is generated.

FIG. 5 shows another embodiment, in which a first set consisting of a first rotor 3a, a second rotor 4a, and a spring member 5a is attached to the pulse switch 1a around the pivot 11a of one case 2a. and the first rotor 3
b, a second rotor 4b, a second rotor 4b, and a spring member 5b.
Although not shown in the figure, an operation input lever is also provided corresponding to each group, so that each group can separately generate a pulse signal. This is what I did.

According to the pulse switch according to the present invention, the first rotor and the second rotor are coaxially attached to the case, and the pulse signal is generated using rotational movement, so the structure is simple and accuracy can be maintained. It is easy to manufacture, can be manufactured at low cost, and can be operated reliably.

[Brief explanation of drawings]

Figure 1 is a perspective view of the main parts of a conventional pulse switch.
2 and 3 show an embodiment of the present invention,
Fig. 2 is a plan view, Fig. 3 is a vertical sectional view, Fig. 4 is a conceptual diagram showing various states developed along the circumference and shown linearly to explain the action, and Fig. 5 is a diagram showing other states. FIG. 3 is a plan view of the embodiment. 1...Pulse switch, 2...Case, 27...
... Fixed contact, 28 ... Engaging and disengaging protrusion, 3 ... First rotor, 4 ... Second rotor, 5 ... Spring member, 51 ...
... Resilient contact, 52 ... Engagement end, 6 ... Operation input lever.

Claims (1)

[Claims] 1 A first rotor to which an operation input lever is fixed and swings back and forth, and a first rotor to which a spring member is fixed.
A second rotor coaxially rotated by the rotor is pivotally supported by a case, and the case is provided with a fixed contact and an engagement/disengagement protrusion, and the first rotor and the second rotor engage with each other through play. , one end of the spring member is provided with a resilient contact point, and the other end is formed with an engaging end that engages with the engaging and disengaging protrusion of the case at the front and rear, but that overcomes the engaging and disengaging protrusion when a force exceeding a predetermined level is applied; The rotor and the spring member are engaged with each other in such a manner that they do not abut each other when the first rotor is at one end of the free play, but abut each other when the first rotor is at the other end to float the resilient contact point. During forward movement, the engaging end of the spring member contacts the front part of the engaging/disengaging protrusion of the case and is temporarily held engaged, and the first rotor passes through the range of play and comes into contact with one end, and then the second rotor is rotated forward by pressing , and while the engaging end passes over the engaging/disengaging protrusion of the case, the elastic contact of the spring member passes while contacting the fixed contact of the case, and when the first rotor moves backward, the spring member The engaging end of the case contacts the rear part of the engaging/disengaging projection of the case and is temporarily held engaged, and the first rotor passes through the range of play and moves to the other end, pushing the second rotor, thereby causing a return movement. Each member is arranged so that the resilient contact of the spring member remains floating while the engaging end passes over the engaging/disengaging protrusion of the case when rotated, without contacting the fixed contact of the case. pulse switch.