JP3470381B2 - Position signal generation switch - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a shift lever switching operation for parking, rear, neutral, drive, and
The present invention relates to a position signal generating switch that generates a position signal indicating a shift position of an automatic transmission, that is, a first speed or a first speed (or a low speed).

[0002]

2. Description of the Related Art In an automobile equipped with an automatic transmission, a shift lever is operated to change the parking, rear, neutral,
A position signal generating switch for generating a position signal indicating a shift position of drive, second speed, first speed (or low) is used, and an operation command is given to a microcomputer of a control system according to each shift position signal. ing.

As shown in FIG. 17, a conventional position signal generating switch of this type includes a housing 1 composed of a body 1a and a cover 1b, and a movable body 10 rotatably housed in the housing 1. Configured. Each of the body 1a and the cover 1b is formed with an insertion hole 2 through which a shift lever (or a shaft that rotates integrally with the shift lever and rotates integrally) is formed. The concave portion 3 is formed in a fan shape. A plurality of conductive plates 4 are embedded in these recesses 3, and fixed contacts 4 a are integrally formed on each conductive plate 4, and the fixed contacts 4 a are exposed from the recesses 3.

The movable body 10 is fitted in the shift lever (or a shaft which is connected to the shift lever and integrally rotates) which is passed through the inside of the housing 1.
0a is formed and integrally rotates according to the rotation of the shift lever. A movable piece 10b that rotates in the space defined by the recess 3 of the housing 1 is provided so as to project from the ring-shaped portion 10a. The movable contact 11 is integrally attached to the movable piece 10b. Although the detailed structure is not described, the movable contact 11 is a coil spring (12 in FIG. 1).
It is elastically brought into contact with the bodies 1a and 1b by being urged by, for example.

The conduction angle between the movable contact 11 and the fixed contact 4a is regulated by the regulation rib 8. For example, in FIG.
As shown in (a), a regulating rib 8 higher than the height of the fixed contact 4a is provided between the fixed contacts 4a, and between the fixed contacts 4a, as shown in FIGS. By riding on the regulation rib 8, the distance in the height direction from the fixed contact 4a is maintained, and the conduction angle between the movable contact 11 and the fixed contact 4a is regulated by the width of the regulation rib 8. As shown in FIG. 17, the restriction rib 8 is formed in an arc shape with respect to the center of rotation of the movable body 10, and is formed outside the position where the fixed contact 4a is arranged.

That is, in this position signal generating switch, the movable body 10 integrally rotates in response to the rotation operation of the shift lever, and the movable contact 11 comes into contact with the fixed contact 4a.
A position signal is obtained as a switching output by opening and closing. In addition, this kind of position signal generation switch,
Conductive plate 4 from part of the outer side of body 1a and cover 1b
Is projected, and the projecting portion is used as the output terminal 6 to output a position signal. Then, in order to connect the output terminal 6 with the wiring on the control system side by a connector, as shown in FIG. 19, a separate connector housing 4 is provided on the output terminal portion formed by projecting the outer portions of the body 1a and the cover 1b.
It has a structure to attach 0.

[0007]

In the above-described conventional structure, even if the conductive plate 4 (for example, a conductive plate for grounding) common to the recesses 10b of the body 1a and the cover 1b is embedded, it is common. The conductive plates 4 are projected from the body 1a and the cover 1b, respectively, and the same output terminals are present in the body 1a and the cover 1b, respectively, and the number of output terminals is increased, so that the configuration cannot be simplified and the overall size cannot be reduced. There was a problem.

Further, if the connector housings 40 are individually attached to the housings, there is a problem that the number of parts is increased and the work for attaching the connector housings 40 is required. Further, since the body 1a and the cover 1b are asymmetrical in shape, the same housing 1 cannot be attached to the right-hand drive vehicle and the left-hand drive vehicle, and two types of housings 1 corresponding to the handle positions can be provided. There was a problem that it had to be easy and the cost increased.

By the way, since the movable contact 11 slides on the surface of the regulating rib 8 for regulating the conduction angle, the sliding surface of the movable contact 11 is coated with grease for lubrication at the time of assembly. However, even if the grease dries during use, it is practically impossible to replenish the grease after assembling, and there is a problem that the life of the movable contact 11 is shortened due to an increase in sliding resistance due to the drying of the grease. It was

Moreover, in this type of position signal generating switch, the internal space of the housing 1 in which the movable body 10 is housed must be kept airtight. So the body 1a
A packing 17 is fitted to the joint between the outer periphery of the cover 1b and the cover 1b to ensure airtightness. Therefore, in order to ensure the airtightness also at the joint between the connector housing 40 and the housing 1, a process of sealing with a packing 17 ′ or the like is performed. Therefore, there is also a problem that it takes a lot of time to attach the connector housing 20.

The present invention has been made in view of the above problems, and an object thereof is to reduce the number of parts,
An object of the present invention is to provide a position signal generating switch having a simple structure and easy assembling work.

[0012]

In order to achieve the above-mentioned object, the invention comprises a movable body which comprises a body and a cover, and which rotates in the housing in response to a shift lever switching operation. With the switching operation of the shift lever, the movable contact integrally attached to the movable body and the fixed contact integrally formed on the plurality of conductive plates embedded in the body and the cover are brought into contact and separated, In a position signal generation switch that generates a position signal indicating the shift position of an automatic transmission, when a plurality of output terminals that are electrically connected to the conductive plates are provided on at least one of the body and the cover and the cover is attached to the body, It is characterized in that a connector portion for connecting one conductive plate of the body and the cover to the other conductive plate is provided on the body and the cover.

According to a second aspect of the invention, in the first aspect of the invention, when a plurality of output terminals are projected from one of the body and the cover and the cover is attached to the body, the conductive plate on the other side of the body or the cover is provided. A connector housing portion for a connector which is connected to a predetermined output terminal by press-fitting connection or elastic contact and which is connected to the output terminal is integrally formed on one of a body or a cover on which the output terminal is provided. And

The invention of claim 3 is the invention of claim 1 or claim 2.
In the invention, the conductive plate connected by the connector portion is a ground conductive plate. Claim 4
The invention of claim 1 is characterized in that, in the inventions of claims 1 to 3, the connector parts are provided on both sides of the center line of the body and the cover. A fifth aspect of the present invention is characterized in that, in the first to fourth aspects of the invention, the body forming the housing and the cover are formed in plane symmetry.

[0016] The invention of claim 6 is from claim 1 to claim 5.
In the invention described above, a movable contact guide rib having a sliding surface on which the movable contact slides by switching operation of the shift lever and separating the movable contact from the fixed contact is brought close to the fixed contact, and the body and It is characterized in that it is provided on the cover, and a recess for accumulating grease is provided on the sliding surface of this rib.

The invention of claim 7 is claim 1 or claim 3.
The invention according to claim 6 further comprises a connector housing portion for a connector connected to the output terminal, and when the connector housing portion is connected to the output terminal and attached to a housing composed of a body and a cover, the housing And a connector housing part. A seal body is provided at a connecting portion between the connector body and the connector housing part. A housing seal protrusion is provided on a housing side surface of the seal body, and the seal body has a connector housing part side surface or the connector housing. It is characterized in that a protrusion for pressing the seal body to the housing side is provided on one of the surfaces of the portion on the seal body side.

[0017]

According to the structure of the first aspect of the present invention, a plurality of output terminals electrically connected to the respective conductive plates are projected from at least one of the body and the cover, and when the cover is attached to the body, one of the body and the cover is electrically conductive. Since the body and the cover are provided with the connector portion for connecting the plate and the other conductive plate, the output terminal is omitted for one of the pair of conductive plates connected by the connector portion and the structure is simplified. can do.

According to the second aspect of the present invention, a plurality of output terminals are projected from one of the body and the cover, and when the cover is attached to the body, the other conductive plate of the body or the cover serves as a predetermined output terminal. The connector housing part for the connector connected to this output terminal by press-fitting connection or elastic contact is integrally formed on one of the body and the cover on which the output terminal is projected. In comparison, the number of parts can be reduced, the work of attaching the connector housing to the position signal generating switch main body is unnecessary, and the assembly can be facilitated.

In the structure of the third aspect of the present invention, since the conductive plate connected by the connector portion is a grounding conductive plate, the structure can be simplified by using the grounding conductive plate in common. According to the configuration of the invention of claim 4, since the connector portions are provided on both sides of the center line of the body and the cover, the reliability of contact between the conductive plates connected by the plurality of connector portions can be improved.

According to the fifth aspect of the present invention, since the body and the cover forming the housing are formed symmetrically with each other, the housing can be mounted on the vehicle body from either the body side or the cover side. In the configuration of the invention of claim 6, the movable contact has a sliding surface on which the movable contact slides by the switching operation of the shift lever, and the movable contact guide rib is provided to separate the fixed contact from the fixed contact. It is provided on the body and cover in close proximity to each other, and a recess for storing grease is provided on the sliding surface of this rib, so it is possible to prevent the grease from drying without replenishing the grease after assembly.
It is possible to prevent the sliding resistance from increasing during the shift lever switching operation and prolong the operating life.

According to a seventh aspect of the present invention, there is provided a connector housing portion for a connector which is connected to the output terminal, and when the connector housing portion is connected to the output terminal and attached to a housing composed of a body and a cover. A sealing body is provided at a connecting portion between the housing and the connector housing portion, and a housing sealing protrusion is provided on a surface of the sealing body on the housing side, and a surface of the sealing body on the connector housing portion side. Alternatively, since a protrusion for pressing the seal body to the housing is provided on one of the seal body side surfaces of the connector housing part, when the connector housing part is attached to the housing, it is inserted in the connecting part between the housing and the connector housing part. The seal body is the surface of the seal body on the connector housing side or the connector housing. The protrusion is provided on one side of the sealing body side surface of the sealing portion, and is pressed against the housing side. The protrusion of the sealing body can seal the housing and seal the connector housing portion. It is possible to save the labor of individually sealing the parts and facilitate the assembly.

[0022]

【Example】

(Embodiment 1) As shown in FIG. 1, a position signal generating switch according to this embodiment includes a housing 1 formed by fitting a body 1a and a cover 1b, which are made of synthetic resin and each formed into a substantially fan shape, and a housing 1 of this housing. 1 and a movable body 10 which is rotatably housed in the inside.

The body 1a and the cover 1b are each formed with an insertion hole 2 through which a shift lever (or a shaft that rotates integrally with the shift lever and rotates integrally) is formed. The recess 3 is formed in a substantially fan shape. A plurality of conductive plates 4 are embedded in these recesses 3, and fixed contacts 4 a are integrally formed on each conductive plate 4, and the fixed contacts 4 a are exposed from the recesses 3. Further, one end of the conductive plate 4 is projected to the outside of the body 1a and the cover 1b, and the projected portion is used as an output terminal 6 to output a position signal. Then, the output terminals 6 are formed by projecting a part of the outer side portions of the body 1a and the cover 1b to surround the output terminals 6 and attach a separate connector housing 20.

The plurality of conductive plates 4 are embedded corresponding to the shift position of the automatic transmission. In the case of this embodiment, the parking position, the reverse position, the neutral position, the first drive position and the second position.
Conductive plate 4 corresponding to a total of 7 shift positions including drive position, second speed position and first speed position
Further, a conductive plate 4'for grounding, a conductive plate 4 corresponding to the automatic speed change mode, a conductive plate 4 for a starter motor drive permission signal, and a pair of lamps for lighting the reverse position display when shifting to the reverse position. There are a total of 12 conductive plates 4 for lighting the lamp. Of these, the conductive plate 4 corresponding to a total of six shift positions other than the first speed position and the conductive plate 4'for grounding are provided on the body 1a side, and the remaining six plates including the conductive plate 4'for grounding. Conductive plate 4
Is buried in the cover 1b side. That is, the housing 1 can be downsized by embedding only the conductive plate 4'for grounding, which is often associated with each conductive plate 4 in the circuit configuration, in both the body 1a and the cover 1b.

Here, the end of the grounding conductive plate 4'is extended to the peripheral portions of the body 1a and the cover 1b, respectively, and the end is raised toward the fitting surface to form the body 1a. And the rising piece 4 protruding from the cover 1b
b'and 4c 'are formed respectively. Then, the elastic contact socket 7 having the curved side wall is attached to the rising piece 4b 'on the body 1a side, and when the cover 1b is fitted to the body 1a, the rising piece 4c' on the cover 1b side is attached. The body 1 is connected to the elastic contact socket 7, and the two rising pieces 4b ′, 4c ′ are electrically connected to each other via the elastic contact socket 7.
A conductive plate 4'for grounding, which is embedded in each of a and the cover 1b, is connected. That is, two startup pieces 4
b ', 4c' and the elastic socket 7 constitute a connector portion, and in the body 1a, a conductive plate 4'for grounding.
The output terminals 6 can be omitted, and the number of output terminals 6 can be reduced.

On the other hand, the movable body 10 is formed with a ring-shaped portion 10a fitted to the shift lever (or a shaft which is connected to the shift lever and integrally rotates) which is passed through the inside of the housing 1. It is integrally rotated according to the rotation of the shift lever. The gap between the ring-shaped portion 10a and the housing 1 is sealed by an O-ring 1c.

A movable piece 10b which rotates from the ring-shaped portion 10a in the space formed by the recess 3 of the housing 1.
Is projected. The movable contacts 11 are integrally attached to both side surfaces of the movable piece 10b. The movable contact 11 is elastically biased outward by the coil springs 12 from both side surfaces of the movable piece 10b.
When the body 1a and the cover 1b are assembled, the recesses 3 are elastically contacted with each other. Also,
A steel ball 15 elastically urged outward by a spring is attached to the upper side surface of the movable piece 10b on the body 1a side. When the shift lever is shifted to the neutral position, the steel ball 15 fits into the neutral position recess 16 provided above the recess 3 of the body 1a, so that the operator feels that the steel ball 15 has been shifted to the neutral position. Can be given to.

As described in the conventional example, the conduction angle between the movable contact 11 and the fixed contact 4a is regulated by the regulation rib 8. That is, the concave portion 3 of the body 1a and the cover 1b
A regulating rib 8 higher than the height of the fixed contact 4a is provided inside the fixed contact 4a, and the movable contact 11 is provided between the fixed contacts 4a.
Is mounted on the regulation rib 8 to fix the fixed contact 4a.
The distance between the movable contact 11 and the fixed contact 4a is regulated by the width of the regulating rib 8 while keeping the distance in the height direction from the. The restriction rib 8 is formed in an arc shape with respect to the center of rotation of the movable body 10, and is formed outside the position where the fixed contact 4a is arranged.

On the other hand, as shown in FIG. 2, the connector housing 20 is formed of a synthetic resin in a cylindrical shape with a bottom, and is provided with a mounting wall 21 to be mounted on the output terminal portion 5 of the housing 1 from the bottom thereof. A plurality of insertion holes 22 through which the output terminals 6 are inserted are formed in the bottom of the inside of the mounting wall 21, and a pressing rib 23, which is a protrusion for pressing a seal body 30 to be described later on the housing 1, is provided. Is provided so as to surround the insertion hole 22.

Further, as shown in FIG. 3, the seal body 30 is made of synthetic rubber and has an insertion hole 31 through which the output terminal 6 is inserted.
Is formed into a plate shape by punching, and a sealing rib 32, which is a projecting portion for housing sealing, projects so as to surround these insertion holes 31, and when the connector housing 20 is attached to the housing 1, the housing 1 Is interposed between the output terminal portion 5 and the bottom portion of the connector housing 20. At this time, the pressing rib 23 of the connector housing 20 and the sealing rib 32 of the sealing body 30 are formed so as to have the same shape and at the same position, and the pressing rib 23 presses the sealing body 30 toward the housing 1. Because
The housing 1 can be reliably sealed by a simple operation, and the waterproofness can be enhanced. In addition,
In the present embodiment, the pressing rib 23 for pressing the sealing rib 32 is provided on the connector housing 20, but it may be provided on the surface of the sealing body 30 opposite to the side where the sealing rib 32 is projected. Good.

Next, the operation of this embodiment will be briefly described with reference to FIGS. FIG. 4 shows a rotation range (conduction angle) in which a position signal corresponding to each of the above-described shift positions is output by the rotation of the movable body 10. The parking position (P ), Reverse position (R), neutral position (N), first drive position (D ₄ ), second drive position (D ₃ ), second speed position (2) and first speed position (1) The position signals corresponding to are sequentially output. Also,
FIG. 5 shows symbols (P to 1 etc.) corresponding to seven shift positions in the vertical column and twelve conductive plates 4 in the horizontal column, and when the position signal corresponding to each shift position is output. Shows which conductive plate 4 is electrically connected. For example, in the case of the second speed position (2), the conductive plate 4 corresponding to the automatic shift mode (A), the conductive plate 4'for grounding (E) and the conductive plate 4 corresponding to the second speed position (2). Are conducted.

In the figure, RL (IN), RL (OU
What is indicated by T) is a conductive plate 4 which is made conductive when it is shifted to the reverse position (R) and is for turning on a lamp for displaying the reverse position (so-called back lamp). The conductive plate 4, which is also denoted by ST, conducts only when it is shifted to the parking position (P) and the neutral position (N) and outputs the starter motor drive permission signal. That is, in an automobile, the starter motor can be driven and the engine can be started only when the starter motor drive permission signal is output by shifting to the parking position (P) and the neutral position (N) for safety. Is done.

(Embodiment 2) Since the basic structure of this embodiment is the same as that of the first embodiment, only the characteristic points will be described below. In this embodiment, the conductive plate 4 on the body 1a side is formed by punching a sheet metal as shown in FIG. 7 (a). Here, the conductive plate 4 serving as the output terminal 6a
A conductive plate which is to be the output terminal 6b on the cover 1b side and is formed by punching another sheet metal is arranged between the end portions of the. These output terminals 6b are connected to the body 1 as shown in FIG. 7 (b).
A is bent so as to project from a position higher than the output terminal 6a, and the end opposite to the output side is bent so as to rise vertically upward.

In the above description, the case where the conductive plate 4 and the output terminal 6b on the cover 1b side are formed of two metal plates has been described, but the pitch and arrangement of the output terminals 6a and 6b are taken into consideration. If so, it is also possible to form one sheet metal. On the other hand, the conductive plate 4 on the cover 1b side is also formed by punching a metal plate as shown in FIG. 7 (c). Here, the end of the conductive plate 4 opposite to the side where the fixed contact 4a is formed, that is, the end of the conductive plate 4 on the output terminal side of the cover 1b of the first embodiment is as shown in FIG. It is formed to be shorter than that of the first embodiment, and its end position is the output terminal 6 on the body 1a side.
It is aligned with the position of the rising piece 6c of b. The end portion is bent vertically downward. Further, the grounding conductive plate 4'on the body 1a side is formed with a connecting piece 4b 'standing up from the side surface in the vicinity of the end thereof.
On the other hand, the grounding conductive plate 4'on the cover 1b side is also formed with the connecting piece 4b 'standing down, and the pair of connecting pieces 4b' form a connector portion.

The conductive plate 4 on the body 1a side is molded with synthetic resin except for the fixed contact 4a, the output terminal 6a, the rising piece 6c of the output terminal 6b on the cover 1b side, and the connecting piece 4b '. Is formed. Here, FIG.
As indicated by an imaginary line in (a), the body 1a may be formed by primary molding and then secondary molding. Further, the conductive plate 4 on the cover 1b side is molded with a synthetic resin except for the fixed contact 4a, the falling piece 6d and the connecting piece 4b 'to form the cover 1b.

Here, the output terminals 6a and 6b of the body 1a
As shown in FIG. 6, a connector housing portion 9 corresponding to the connector housing 20 for the connector of the first embodiment is integrally molded with a synthetic resin at a portion corresponding to. With this configuration, the number of parts does not increase as in the case where the connector housings 20 are individually provided, and the work of attaching the connector housings 20 is not required. Further, the work of sealing the space between the connector housing 20 and the housing 1 is not necessary. In addition, 17 is a packing for increasing the airtightness inside the housing 1.

At the time of assembling the body 1a and the cover 1b, the annular relay terminal 13 is fixed to one of the rising piece 6c or the falling piece 6d by welding or the like.
When the cover 1b is fitted to the relay terminal 13, the other of the rising piece 6c and the falling piece 6d may be press-fitted into the relay terminal 13. Needless to say, the structure corresponding to the relay terminal 13 may be integrally formed with one of the rising piece 6c and the falling piece 6d.

In the above case, the relay terminal 13 is used to press fit the rising piece 6c and the falling piece 6d, but as shown in FIGS. 8 (b) and 8 (c). And the rising piece 6
The tips of c and the falling piece 6d may be bent in mutually opposite directions so that when the cover 1b is attached to the body 1a, elastic contact may be made. By the way, as for the contact between the conventional movable contact 11 and the fixed contact 4a, the movable contact 11 has the fixed contact 4a.
By making elastic contact with, it contacted at one point.
For this reason, when vibration or impact is applied to the position signal generating switch, the movable contact 11 may bounce and be separated for a moment.

Therefore, as a method of improving this point, as shown in FIG. 9, a pair of elastic holding pieces 11a sandwiching the fixed contact 4a from both sides in the width direction are projected from the contact portion of the fixed contact 4a of the movable contact 11. The elastic holding piece 11a may contact the fixed contact 4a at two points. Here, the pair of elastic holding pieces 11a are formed in a V shape that opens downward and have elasticity. By doing so, it becomes difficult to separate even if there is vibration or impact in the vertical direction and the horizontal direction.

Moreover, if the conventional single-point contact is used,
In order to improve the contact reliability, the regulation rib 8 needs to be formed outside the position where the fixed contact 4a is arranged, for example, as shown in FIG. However, since the contact reliability of the contact itself is increased as described above, the contact shown in FIG.
As shown in, the regulating rib 8 can be formed on an arc centered around the rotation center of the movable body 10 where the fixed contact 4a is arranged. Therefore, the shape of the position signal generating switch can be reduced in size. Here, the restriction rib 8 may be formed so as to have a width smaller than the width of the fixed contact 4a and a height higher than that of the fixed contact 4a (see FIG. 12C).

As the movable contact 11, as shown in FIG. 13, there is also a structure in which a conductive spring piece 18 is elastically contacted. Therefore, in the case of such a movable contact 11, as shown in FIG.
By forming the elastic holding piece 14a at the tip of the contact, the contact reliability can be improved as in the case of FIG. Note that FIG.
2 (a) and 2 (b) show the contact state between the movable contact 11 and the fixed contact 4a.

(Embodiment 3) Since the basic configuration of this embodiment is the same as that of the position signal generating switch of Embodiment 1, the following description will be made only on the characteristic points. In this embodiment, as shown in FIG. 14, the conductive plate 4'for grounding the body 1a and the cover 1b is extended to both side peripheral portions of the body 1a and the cover 1b sandwiching substantially the center of the recess 3 and the ends thereof are provided. The rising portions 4b 'and 4c' of the rising portions 4b ', 4c' on the body 1a side are raised by exposing them to the fitting surface side.
The elastic socket 7 described in the first embodiment is attached to b ', and 2
A pair of connector parts are formed.

In the above structure, the connection of the two pairs of connector parts makes it possible to more stabilize the fitted state of the body 1a and the cover 1b. Further, since the connector parts are provided at two locations, a large capacity current can be obtained. It is possible to cope with energization, and it is possible to improve the reliability of conduction of the conductive plate 4'for grounding the body 1a and the cover 1b. (Embodiment 4) Since the basic configuration of this embodiment is also the same as that of the position signal generating switch of Embodiment 1, the following description will be made only on the characteristic points.

In this embodiment, as shown in FIG. 15, the body 1a and the cover 1b forming the housing 1 are formed symmetrically with respect to each other. That is, the housing 1 configured by fitting the body 1a and the cover 1b has a shape symmetrical with respect to the center line thereof. Therefore, when mounting such a position signal generating switch on an automobile, the housing 1 can be mounted from either the body 1a side or the cover 1b side, and one type of housing 1 can be used for right-hand drive vehicles and left-hand drive vehicles. It is possible to support both of the above, and it is possible to reduce the number of parts and reduce the cost.

(Embodiment 5) Since the basic configuration of this embodiment is also the same as that of the position signal generating switch of the embodiment 1, only the characteristic points will be described below. In the present embodiment, as shown in FIG. 16, a plurality of recesses 8a for accumulating grease 35 are provided on the sliding surface of the regulation rib 8 on which the movable contact 11 slides, on the body 1a side and the cover 1b side. The grease 35 can be attached to the movable contact 11 every time the movable body 10 is rotated and passes through the recess 8a. That is, it is prevented that the grease applied at the time of assembly is dried over time, the sliding resistance between the movable contact 11 and the fixed contact 4a and the regulating rib 8 at the time of the shift lever switching operation is increased, and the operating life is shortened. You can do it. Although the recess 8a for accumulating the grease 35 is provided in both the body 1a and the cover 1b in the present embodiment, the same effect can be obtained by providing the recess 8a in only one of them.

[0046]

According to the invention of claim 1, the housing is composed of a body and a cover, and is provided with a movable body that rotates within the housing in response to a shift lever switching operation. A movable contact integrally mounted on the vehicle and a fixed contact integrally formed on a plurality of conductive plates embedded in the body and cover are brought into contact with and separated from each other to generate a position signal indicating a shift position of the automatic transmission. In the position signal generating switch, a plurality of output terminals that are electrically connected to each conductive plate are projected from at least one of the body and the cover, and when the cover is attached to the body, one conductive plate of the body and the cover and the other conductive Since the connector portion for connecting to the plate is provided on the body and the cover, one conductive plate of the pair of conductive plates connected by the connector portion is It is possible to simplify the structure by omitting the power terminal, there is an effect that it is possible to reduce the overall size.

According to a second aspect of the present invention, a plurality of output terminals are projected from one of the body and the cover, and when the cover is attached to the body, the other conductive plate of the body or the cover is press-fitted and connected to a predetermined output terminal. Alternatively, since the connector housing part for the connector that is connected by elastic contact and is connected to this output terminal is integrally formed on one of the body and the cover where the output terminal is projected, compare with the case where individual connector housings are provided. As a result, it is possible to reduce the number of parts, eliminate the work of attaching the connector housing to the position signal generating switch body, and facilitate the assembly.

According to the third aspect of the invention, since the conductive plate connected by the connector portion is a grounding conductive plate, there is an effect that the structure can be simplified by using the grounding conductive plate in common. . According to the invention of claim 4, since the connector portions are provided on both sides of the center line of the body and the cover,
The reliability of contact between the conductive plates connected by the plurality of connector portions can be improved.

According to the fifth aspect of the present invention, the body and the cover forming the housing are formed symmetrically with each other. Therefore, the housing can be mounted on the vehicle body from either the body side or the cover side. It is compatible with both right-hand drive vehicles and left-hand drive vehicles, and has the effect of reducing costs. According to a sixth aspect of the present invention, the movable contact has a sliding surface on which the movable contact slides by switching operation of the shift lever, and a movable contact guide rib that separates from the fixed contact by guiding the movable contact is brought close to the fixed contact. Since the ribs have a recess for accumulating grease on the sliding surface of the body and the cover, it is possible to prevent the grease from drying out without replenishing the grease after assembly, and the sliding resistance during the shift lever switching operation. It is possible to prevent an increase in the operating life and prolong the operating life.

According to a seventh aspect of the present invention, there is provided a connector housing portion for a connector which is connected to the output terminal. When the connector housing portion is connected to the output terminal and attached to a housing composed of a body and a cover, A seal body is provided at a connecting portion between the housing and the connector housing section, and a housing seal projection is provided on the housing side surface of the seal body, and the seal body has a connector housing section side surface or a connector. Since the protrusion for pressing the seal body against the housing is provided on one of the seal body-side surfaces of the housing part, when the connector housing part is attached to the housing, the seal interposed between the housing and the connector housing part is inserted. Body is the surface of the seal body on the connector housing side or the connector housing A protrusion provided on one of the surfaces on the seal body side is pressed against the housing side, and the protrusion of the seal body seals the housing and seals the connector housing part. There is an effect that the labor of sealing can be saved and the assembling can be facilitated.

[Brief description of drawings]

1A and 1B show Example 1, in which FIG. 1A is a plan view of a cover, FIG. 1B is a sectional view, and FIG. 1C is a plan view of a body.
(D) is a top view and (e) is a partial sectional view taken along the line AA of FIG.

2A to 2E are views showing the connector housing of the same.

3A and 3B show the same sealing body, in which FIG. 3A is a plan view and FIG. 3B is a sectional view.

FIG. 4 is an explanatory diagram illustrating an operation of the above.

FIG. 5 is an explanatory diagram illustrating an operation of the above.

FIG. 6 is a partial cross-sectional view of a main part of the second embodiment.

7A to 7D are a plan view showing a body-side conductive plate, a side view of the same, a plan view of a cover-side conductive plate, and a side view of the same.

8A to 8D are a plan view showing a body-side conductive plate adopted in another connection method, a side view of the same, a plan view of a cover-side conductive plate, and a side view of the same. is there.

9A and 9B are a front view and a side view of a movable contact having high contact reliability.

10A and 10B are a partial perspective view and a cross-sectional view showing a contact state with a fixed contact.

11 (a) and 11 (b) are a partial front view and a side view of another movable contact portion having high contact reliability.

12A to 12C are a perspective view showing a contact state with a fixed contact, a sectional view, and a sectional view showing a structure of the fixed contact and a forming rib.

13A to 13C are a plan view, a side view, and a partial cross-sectional view of a movable body having a movable contact having another structure.

14A and 14B show Example 3 in which FIG. 14A is a plan view of a cover, FIG. 14B is a sectional view, and FIG. 14C is a plan view of a body.
(D) is a top view.

15A and 15B show Example 4, in which FIG. 15A is a plan view of a cover, FIG. 15B is a sectional view, and FIG. 15C is a plan view of a body.
(D) is a top view.

FIG. 16 shows a cover of Example 5, (a)
Is a front view, (b) is a left side view, (c) is a right side view,
(D) is a top view and (e) is a partial sectional view taken along the line AA of FIG.

FIG. 17 is an exploded plan view showing the overall structure of a conventional position signal generating switch.

18A to 18C are a partial plan view showing a structure of a fixed contact portion, a perspective view showing a function of a regulating rib, and a side view.

FIG. 19 is a sectional view showing a conventional structure of an output terminal portion.

[Explanation of symbols]

1 housing 1a body 1b cover 4 conductive plate 6 output terminals 7 Elastic socket 8 restriction ribs 10 movable bodies 11 movable contacts

─────────────────────────────────────────────────── ─── Continuation of the front page (58) Fields surveyed (Int.Cl. ⁷ , DB name) F16H 59 / 08,59 / 10

Claims (7)

(57) [Claims] 1. A housing, which comprises a body and a cover, has a movable body that rotates within the housing in response to a shift lever switching operation, and is integrally attached to the movable body by a shift lever switching operation. In a position signal generating switch for generating a position signal indicating a shift position of an automatic transmission by contacting and opening a movable contact and a fixed contact integrally formed on a plurality of conductive plates embedded in a body and a cover, Providing a plurality of output terminals that are electrically connected to each conductive plate from at least one of the body or cover,
A position signal generating switch, characterized in that when the cover is attached to the body, a connector section for connecting one conductive plate of the body and the cover to the other conductive plate is provided on the body and the cover. 2. A plurality of output terminals projecting from one of a body and a cover, and when the cover is attached to the body, the other conductive plate of the body or the cover is press-fitted or elastically connected to a predetermined output terminal. 2. The position signal generating switch according to claim 1, wherein the connector housing portion for the connector connected to the output terminal is integrally formed on one of the body and the cover on which the output terminal is provided. 3. The position signal generating switch according to claim 1, wherein the conductive plate connected by the connector portion is a conductive plate for grounding. 4. The position signal generating switch according to claim 1, wherein the connector portions are provided on both sides of the center line of the body and the cover. 5. The position signal generating switch according to claim 1, wherein the body and the cover forming the housing are formed in plane symmetry. 6. A body having a sliding surface on which a movable contact slides by a shift lever switching operation and a movable contact guide rib for separating the fixed contact from the fixed contact by guiding the movable contact so as to be close to the fixed contact. 6. The position signal generating switch according to claim 1, further comprising: a recess provided in the cover and a recess for accumulating grease on the sliding surface of the rib. 7. A connector housing portion for a connector connected to an output terminal, the housing and the connector housing portion when the connector housing portion is connected to the output terminal and attached to a housing composed of a body and a cover. A sealing body is provided at a connecting portion with the housing, a housing sealing protrusion is provided on the housing side surface of the sealing body, and the sealing body has a connector housing portion side surface or a connector housing portion sealing body side. 7. The position signal generating switch according to claim 1, further comprising a protrusion that presses the seal body against the housing on one of the surfaces of the position signal generating switch.