JP2005294208A - Shift switch with lever - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a shift switch with a lever in which assembling work performance is improved by eliminating painting work of a screw locking member and breakage or the like of a seal member provided at the insertion hole can be prevented. <P>SOLUTION: The shift switch with lever is equipped with a lever member 1 capable of rocking interlocked with the operation of a shift lever, a terminal board 2 for supporting in free rotation the shaft part 1a of the lever member 1, a case 3 in which an insertion hole 3b capable of inserting the shaft part 1a of the lever member 1 is formed, an O ring 7 which is arranged at the insertion hole 3b and seals, and a roller member 4 having a movable contact 5 capable of contacting to and separating from a fixed contact 6 of the terminal board 2, and according to the operation of the shift lever, the movable contact 5 contacts the prescribed fixed contact 6 and detects the position of the shift lever. The switch has an E-shape stopper ring 9 which locks the shaft part 1a of the lever member 1 and the case 3 and prevents pulling-off of the lever member 1 from the case 3. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a shift switch with a lever for detecting the position of a shift lever of a vehicle.

  2. Description of the Related Art Generally, a shift switch in an automobile having an automatic transmission (so-called automatic vehicle) has a roller member having a movable terminal and a terminal block having a plurality of fixed terminals formed at predetermined positions, and the roller member is a shift lever. The movable terminal is brought into contact with or separated from the predetermined fixed terminal by sliding on the fixed terminal in conjunction with the operation, and the position of the shift lever of the automatic transmission is detected based on the conduction or non-conduction state. Yes.

  However, a lever member is extended on the roller member for convenience of layout, and the roller member is slid on the fixed terminal by interlocking with the shift lever (hereinafter referred to as a lever-equipped shift switch). ) In such a shift switch with a lever, it is necessary to attach a lever member to a roller member, and as an attachment structure thereof, for example, a conventional one disclosed in Patent Document 1 is cited.

  Patent Document 1 discloses a shift switch with a lever (conventional example 1) having a structure in which a lever member is attached to the tip of a metal shaft that is insert-molded into a roller member, and is prevented by a nut. A shift switch with a lever (conventional example 2) having a structure in which a roller member is attached to a shaft portion of a member and both are fixed by ultrasonic welding is disclosed. According to the conventional example 1, the attaching operation of the roller member and the lever member is easy, and according to the conventional example 2, since both are integrated, a stronger fixation can be achieved.

By the way, in a shift switch with a lever, a sealed space is formed inside a case that covers a terminal block, and a roller member can be slid in the space, and the space is inserted through an insertion hole formed in the case. Since the roller member disposed inside and the lever member disposed outside the case are connected, a sealing member such as an O-ring is disposed in the insertion hole in order to maintain hermeticity. .
Japanese Utility Model Publication No. 7-25537

  However, the conventional shift switch with a lever has the following problems. That is, in the case of the conventional example 1, the lever member is prevented from coming off the roller member by screwing with a nut (that is, the lever member is prevented from coming off from the case). It is necessary to apply a so-called screw lock agent in order to prevent loosening of the nut due to, etc., in the case of the conventional example 2, when applying ultrasonic waves, stress is applied to the O-ring or the like assembled in the insertion hole, There is a possibility that the sealing function may be deteriorated due to deformation or breakage.

  The present invention has been made in view of such circumstances, and a shift with a lever which can improve the assembly workability by eliminating the application work of the screw lock agent and can prevent the seal member disposed in the insertion hole from being damaged. To provide a switch.

  According to the first aspect of the present invention, the lever member is configured to be swingable about the shaft portion in conjunction with the operation of the shift lever of the vehicle, the shaft portion of the lever member is rotatably supported, and the fixed contact is A terminal block that is formed, a case that is matched with the terminal block to form an accommodating space therein, and that has an insertion hole through which the shaft portion of the lever member can be inserted, and is disposed in the insertion hole of the case A seal member that seals between the insertion hole and the shaft portion of the lever member while allowing rotation of the shaft portion of the lever member; and a shaft of the lever member that is housed in the housing space in the case And a roller member having a movable contact that can be contacted with or separated from the fixed contact of the terminal block, and the movable contact comes into contact with a predetermined fixed contact with the operation of the shift lever. Position of the shift lever In the shift switch with a lever for detecting the above, a locking means is provided for locking the shaft portion of the lever member and the roller member or the case and preventing the lever member from coming off from the case. And

  According to a second aspect of the present invention, in the shift switch with a lever according to the first aspect, the locking means includes an E-shaped retaining ring attached to a shaft portion of the lever member.

  According to a third aspect of the present invention, in the shift switch with a lever according to the first aspect, the locking means can be extended from the distal end portion of the shaft portion of the lever member and bend in the radial direction of the shaft portion. It consists of a claw part.

  According to a fourth aspect of the present invention, in the shift switch with a lever according to the third aspect, a restricting portion for restricting the bending of the claw portion in a state where the roller member is assembled to the shaft portion of the lever member is provided. It is characterized by.

  According to the invention of claim 1, since the shaft portion of the lever member is prevented from coming off from the case by the locking of the locking means, the application work of the screw lock agent can be eliminated, and the assembly workability is improved. It is possible to prevent damage to the seal member disposed in the insertion hole.

  According to the invention of claim 2, since the locking means is formed of the E-shaped retaining ring, it is possible to improve the workability when the lever member is attached to the case. Further, the locking by the E-shaped retaining ring can stabilize the mounting strength of the lever member with respect to the case, and can reliably avoid the loosening of the lever member in the axial direction.

  According to the invention of claim 3, since the locking means comprises the claw portion formed at the tip end portion of the shaft portion of the lever member, it is possible to prevent the seal member disposed in the insertion hole from being damaged, and the lever for the case. The member can be attached more smoothly.

  According to the invention of claim 4, since the restricting portion for restricting the bending of the claw portion is provided in a state in which the lever member is assembled to the case, it is more reliably avoided that the lever member is detached from the case. Can do.

Hereinafter, embodiments of the present invention will be specifically described with reference to the drawings.
The shift switch with a lever according to the first embodiment detects whether a shift lever in an automobile having an automatic transmission (so-called automatic car) is in a neutral position, a reverse position, a drive position, or the like, A signal corresponding to each position can be transmitted to the vehicle side. As shown in FIGS. 1 to 5, the lever member 1, the terminal block 2, the case 3, the roller member 4, and the locking means It is mainly composed of an E-shaped retaining ring 9.

  The lever member 1 is swingable about a shaft portion 1a in conjunction with the operation of a shift lever (not shown) of the vehicle, and a protruding portion 1aa (see FIGS. 3 and 3) is provided at the protruding end of the shaft portion 1a. 4), and a groove 1ab for locking an E-shaped retaining ring 9 to be described later is formed on the side surface. And when the lever member 1 is assembled | attached to this shift switch, the protrusion part 1aa of the axial part 1a fits in the recessed part 2b for shafts of the terminal block 2 mentioned later, and the axial part 1a of the lever member 1 is rotatable. It is possible to support.

  As shown in FIG. 2, the terminal block 2 has a plurality of fixed contacts 6 formed by inserts, and these fixed contacts 6 are formed in a substantially arc shape so as to be formed on the sliding locus of the roller member 4. Yes. Each fixed contact 6 is electrically connected to a predetermined terminal of the connector 2a, and an electric signal of the predetermined fixed contact 6 made conductive by the movable contact 5 of the roller member 4 is transmitted through the connector 2a. It can be transmitted to the vehicle side.

  As shown in FIG. 3, the case 3 is formed with a recess 3 a that matches the terminal block 2 to form an accommodation space therein, and an insertion hole 3 b through which the shaft portion 1 a of the lever member 1 can be inserted. It is a thing. In a state where the shaft portion 1a of the lever member 1 is inserted into the insertion hole 3b, the E-shaped retaining ring 9 is attached to the groove 1ab as a retaining member, and the roller member 4 is fitted from the tip side of the shaft portion 1a. It has become.

  As shown in FIG. 4, an O-ring 7 as a seal member is disposed on the accommodation space side in the insertion hole 3 b of the case 3. The O-ring 7 seals the space between the insertion hole 3b and the shaft portion 1a while allowing the shaft portion 1a of the lever member 1 to rotate, and prevents rainwater, foreign matter, etc. from entering the internal storage space. Yes. The case 3 is integrated with the terminal block 2 by bolts B while accommodating the roller member 4 as shown in FIG.

  The roller member 4 is housed in the housing space formed between the case 3 and the terminal block 2 as described above, and the tip of the shaft portion 1a of the lever member 1 that is prevented from coming off by the E-shaped retaining ring 9 is used. The movable contact 5 is fixed to the portion and can be contacted with or separated from the fixed contact 6 of the terminal block 2. As shown in FIG. 6, the movable contact 5 is urged toward the terminal block 2 by a spring 10. When the roller member 4 slides on the terminal block 2 as the lever member 1 swings, the movable contact 5 is fixed to a predetermined position. The contact 6 can be in a conductive state or a non-conductive state.

  The E-shaped retaining ring 9 is a so-called E-ring made of metal, and is fixed to the groove 1ab of the shaft portion 1a inserted into the insertion hole 3b as described above, and the shaft portion 1a of the lever member 1 is fixed to the case. 3 for locking (locking with respect to the insertion direction of the shaft portion 1a and allowing rotation of the shaft portion 1a) to prevent the shaft portion 1a from coming off. Further, a resin washer 8 is fitted into the upper portion of the E-shaped retaining ring 9 in the shaft portion 1a. In addition, it is good also as a structure which replaces with the metal E-shaped retaining ring 9 and is made of resin, and the washer 8 is unnecessary.

  To assemble the shift switch with a lever, as shown in FIG. 6, an O-ring 7 is attached to the back side of the insertion hole 3b in the case 3, and the shaft portion 1a of the lever member 1 is inserted into the insertion hole 3b. In this state, the washer 8 and the E-shaped retaining ring 9 are fixed to the groove 1ab formed in the shaft portion 1a to prevent the lever member 1 from coming off from the case 3, and then the through hole 4a formed in the roller member 4 is used. The shaft portion 1a tip is inserted into and assembled. A movable contact 5 is attached to the roller member 4 via a spring 10.

  Thereafter, the case 3 to which the lever member 1 and the roller member 4 and the like are attached is aligned with the surface of the terminal block 2 through the packing P, and both are fixed with bolts B. As a result, the roller member 4 slides on the terminal block 2 in conjunction with the lever member 1, and the movable contact 5 can contact the predetermined fixed contact 6 to transmit an electrical signal, so that the shift lever can be transmitted based on the electrical signal. Can be detected.

  According to the present embodiment, since the shaft portion 1a of the lever member 1 is prevented from coming off from the case 3 by the E-shaped retaining ring 9, the lever member and the roller member are fixed by ultrasonic welding. Compared with the case in which the lever member is prevented from coming off, the workability when the lever member 1 is attached to the case 3 can be improved. Further, the locking strength of the lever member 1 with respect to the case 3 can be stabilized by the locking by the E-shaped retaining ring 9, and the vibration and thermal environment of the vehicle are compared with those in which both are fixed by screwing with a nut or the like. It is possible to reliably avoid loosening of the lever member 1 in the axial direction due to the like.

Next, a second embodiment of the present invention will be described.
As in the first embodiment, the shift switch with lever according to the present embodiment detects whether the shift lever in a so-called automatic vehicle is in a neutral position, a reverse position, a drive position, or the like, and The corresponding signal can be transmitted to the vehicle side, and as shown in FIGS. 7 to 9, the lever member 1 ′, the terminal block 2, the case 3, the roller member 4, and the operation pin 11 as a restricting portion. And is composed mainly of. In addition, the same code | symbol is attached | subjected to the component similar to 1st Embodiment, and the detailed description is abbreviate | omitted.

  The lever member 1 ′ is swingable about the shaft portion 1′a in conjunction with the operation of the shift lever of the vehicle. As shown in FIG. A claw portion 1′aa (locking means) extending in the radial direction of the shaft portion 1′a is formed. The claw portion 1'aa can be bent in the radial direction of the shaft portion 1'a by a slit 1'ab formed from the tip surface of the shaft portion 1'a. The outer diameter of the shaft portion 1'a is slightly smaller than the inner diameter of the through hole 4a formed in the roller member 4. The dimensions are slightly larger.

  The operating pin 11 is inserted into the claw portion 1′aa in a state where the roller member 4 is assembled to the shaft portion 1′a of the lever member 1 ′ by inserting the shaft portion 1′a into the through hole 4a. As shown in FIG. 7, a protrusion 11a is formed at the protrusion, and the protrusion 11a is fitted into the shaft recess 2b of the terminal block 2 in a state where the shift switch is assembled. As a result, the shaft portion 1′a of the lever member 1 ′ can be rotatably supported.

  To assemble the shift switch with lever, as shown in FIG. 9, the O-ring 7 is attached to the back surface side of the insertion hole 3b in the case 3, and the shaft portion 1′a of the lever member 1 ′ is attached to the insertion hole 3b. Insert. In this state, the shaft portion 1′a is inserted into the through hole 4a formed in the roller member 4. In this process, the claw portion 1′aa is moved inward by interference with the inner peripheral wall of the through hole 4a. It bends and is restored to its original state when it comes out of the through hole 4a.

  In such a state, the claw portion 1'aa is locked to the periphery of the through hole 4a on the back surface side of the roller member 4, so that the roller member 4 and the lever member 1 'are fixed, and the lever member 1' It will be secured. Thereafter, the operating pin 11 is fitted into the separation portion (inside the tip of the shaft portion 1'a) of the claw portion 1'aa to prevent further bending of the claw portion 1'aa. Thereby, it is possible to avoid the unlocking by the claw portion 1'aa and to fix the roller member 4 to the shaft portion 1'a of the lever member 1 'more firmly.

  Then, the case 3 to which the lever member 1 ′, the roller member 4, and the like are attached is aligned with the surface of the terminal block 2 through the packing P, and is fixed with the bolt B. As a result, the roller member 4 slides on the terminal block 2 in conjunction with the lever member 1 ′, and the movable contact 5 can contact the predetermined fixed contact 6 to transmit an electrical signal, so that the shift is performed based on the electrical signal. The position of the lever can be detected.

  According to the present embodiment, the lever member 1 ′ is fixed to the roller member 4 by the claw portion 1′aa formed at the distal end portion of the shaft portion 1′a, and the lever member 1 ′ is prevented from being detached from the case 3. Therefore, the O-ring 7 disposed in the insertion hole 3b can be prevented from being damaged, and the lever member for the roller member 4 can be prevented as compared with a case in which both are fixed by ultrasonic welding. The attachment work of 1 ′, that is, the attachment work of the lever member 1 ′ to the case 3 can be performed more smoothly.

  According to the first embodiment and the second embodiment of the present invention, the roller member is locked to the lever member by the E-shaped retaining ring 9 and the claw portion 1′aa as the locking means, and the retaining is achieved. Therefore, the application work of the screw lock agent can be eliminated to improve the assembly workability, and damage to the seal member disposed in the insertion hole can be prevented.

  Although the present embodiment has been described above, the present invention is not limited to these embodiments, and the locking means for locking the shaft portion of the lever member and the roller member or the case has another configuration (for example, The roller member side may be provided with locking means to lock the roller member and the shaft portion of the lever member. Further, in the second embodiment, the operating pin 11 attached to the claw portion 1′aa is a separate structure, but it is fitted into the separation portion of the claw portion 1′aa and the claw portion 1′aa has A shape that restricts bending may be integrally formed on the terminal block 2 side, and this may be used as the restricting portion.

  A shift switch with a lever having a lever member interlocked with the shift lever and locking the lever member and the roller member or case to prevent the lever member from coming off from the case has a different appearance. It can also be applied to a device to which a function or other function is added.

The top view which shows the shift switch with a lever which concerns on the 1st Embodiment of this invention. Plan view showing the terminal block in the shift switch with lever The case of the shift switch with lever as seen from the back side IV-IV line sectional view in FIG. The perspective view which shows the lever member in the shift switch with the lever Exploded perspective view for explaining assembly of shift switch with lever Sectional drawing which shows the shift switch with a lever which concerns on the 2nd Embodiment of this invention. The perspective view which shows the lever member in the shift switch with the lever Exploded perspective view for explaining assembly of shift switch with lever

Explanation of symbols

1, 1 'lever member 1a, 1'a shaft 1'aa claw (locking means)
2 Terminal block 3 Case 3b Insertion hole 4 Roller member 5 Movable contact 6 Fixed contact 7 O-ring (seal member)
8 Washer 9 E-type retaining ring (locking means)
10 Spring 11 Actuation pin (Regulator)

Claims (4)

A lever member capable of swinging around a shaft portion in conjunction with the operation of the shift lever of the vehicle;
A terminal block that rotatably supports the shaft portion of the lever member and has a fixed contact formed thereon,
A case formed with an insertion hole through which the shaft portion of the lever member can be inserted while being matched with the terminal block to form an accommodation space inside,
A seal member that is disposed in the insertion hole of the case and seals between the insertion hole and the shaft portion of the lever member while allowing rotation of the shaft portion of the lever member;
A roller member housed in a housing space in the case and fixed to the distal end portion of the shaft portion of the lever member, and having a movable contact that can contact or separate from the fixed contact of the terminal block;
In the shift switch with a lever for detecting the position of the shift lever when the movable contact contacts a predetermined fixed contact with the operation of the shift lever,
A shift switch with a lever, comprising a locking means for locking the shaft portion of the lever member and the roller member or the case to prevent the lever member from coming off from the case.   2. The shift switch with a lever according to claim 1, wherein the locking means comprises an E-shaped retaining ring attached to a shaft portion of the lever member.   The shift switch with a lever according to claim 1, wherein the locking means includes a claw portion that extends from a tip end portion of the shaft portion of the lever member and can be bent in a radial direction of the shaft portion.   The shift switch with a lever according to claim 3, wherein a restricting portion for restricting the bending of the claw portion in a state where the lever member is assembled to the case is provided.

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