JP5518581B2 - Key unit and key unit assembly method - Google Patents

Description

  The present invention relates to a key unit in which a key plate is rotatably supported by a case, and a method for assembling the key unit.

  Conventionally, there is a key unit in which a key plate is rotatably supported by a case (see, for example, Patent Document 1). This key unit includes a key plate formed integrally with a key head having a shaft hole, a cylindrical button that is fitted into the shaft hole of the key head and serves as a support shaft, a lower case that supports the button, and a key head. And a support member that supports the fitted button together with the key head with respect to the lower case, and a torsion spring that is provided between the key head and the support member and generates an elastic force therebetween.

  According to this key unit, the engagement position where the torsion spring engaged with the key head is engaged with the support member and the fastening position rotated by a predetermined amount to the position where the torsion spring exerts elastic force is set. In addition, a positioning restriction portion that contacts the support member at the fastening position is provided in the lower case, and the support member that is in contact with the positioning restriction portion is fastened to the lower case by a screw or the like. For this reason, the key plate can be easily assembled so as to be rotatably supported by the case without being aware of the elastic force generated in the torsion spring.

JP 2007-255014 A

  However, in the key unit shown in Patent Document 1, when the support member is fastened to the lower case with a screw or the like, the support member is elastically applied by a torsion spring so that the support member is not returned to the engagement position. It was necessary for an assembler or the like to continue to maintain the fastening position.

  Accordingly, an object of the present invention is to provide a key unit and a method for assembling the key unit that can be easily assembled even when an elastic force that does not maintain the components in the assembled position is generated between the components.

One aspect of the present invention includes a case having a support shaft, a columnar member supported at one end by the support shaft, a rotation member supported rotatably about the columnar member as a rotation axis, and holding a key plate, A spring having one end attached to the rotating member and generating an elastic force in the rotation direction of the rotating member; a hole supporting the other end of the cylindrical member opposite to the one end; and an attachment portion to which the other end of the spring is attached has, that is fitted to said casing, said spring have a support member for supporting the rotary member by sandwiching said casing in a state which caused the elastic force between the rotary member, the The case has a concave portion or a convex portion, and the support member has a convex portion or a concave portion corresponding to the concave portion or the convex portion of the case, and the convex portion or the concave portion of the support member and the case Use the elastic force between the concave or convex parts. After fitted to said supporting member to provide a key unit, characterized in that it is fastened to the case.

Also, the case of the key unit has a threaded hole, the support member has a threaded through-hole, in mated condition with the casing, the screw hole of the case, through the screw through hole It may be fastened and fixed by screws.

One embodiment of the present invention includes a step of arranging one end of a cylindrical member on a support shaft provided in a case, and a step of fitting a rotary member holding a key plate to the cylindrical member from the axial direction of the cylindrical member. A support member having a hole for supporting the other end of the cylindrical member opposite to the one end and an attachment portion to which one end of the spring is attached, and fitting the hole to the cylindrical member and attaching the one end of the spring to the attachment attaching the other end to the rotating member attached to the part, the projections or recesses provided in the supporting member, by utilizing elastic force in the axial direction in recesses or protrusions provided on the casing of the cylindrical member a step of fitting Te, provides a method of assembling the key unit and a step of the fastening of the support member and the case fixing.

  According to the present invention, even when an elastic force that does not maintain the component in the assembly position is generated between the components, the component can be easily assembled.

1A and 1B are plan views showing a key unit according to an embodiment of the present invention. FIG. 2 is an exploded perspective view showing the configuration of the key unit according to the embodiment of the present invention. FIG. 3A is an exploded perspective view showing the configuration of the key unit according to the embodiment of the present invention, and FIG. 3B is a partially enlarged perspective view. FIGS. 4A and 4B are enlarged perspective views showing the operation of the release button and the rotating member of the key unit according to the embodiment of the present invention.

(Key unit configuration)
1A and 1B are plan views showing a key unit according to an embodiment of the present invention. FIG. 1A shows the key unit when the key plate is stored, and FIG. 1B shows the key unit when the key plate protrudes.

  The key unit 1 is a key used for locking or unlocking a vehicle door lock, starting an engine, and the like. The key unit 1 includes an upper case 10 and a lower case 11 (FIG. 2). As shown to (a), the metal keyplate 2 is accommodated in the hollow keyplate accommodating part 11a. During normal use, a keyless module 7 (FIG. 2), which will be described later, built in the key unit 1 wirelessly transmits a signal instructing locking or unlocking of the vehicle door lock to the vehicle without using the key plate 2. To do.

  Further, the key unit 1 locks the steering handle of the vehicle with the key plate 2 protruding from the key unit 1 as shown in FIG. And it is inserted into the keyhole of the cylinder lock for switching the lock release.

  The upper case 10 releases the key plate 2 and rotates the release button 3 in the direction A from the state shown in FIG. 1A to the state shown in FIG. 1B, and a holder ring 10a for attaching a key holder and the like. And a lock button 70 that allows the keyless module 7 to lock the vehicle keylessly, and an unlock button 71 that unlocks the vehicle keylessly. The upper case 10 and the lower case 11 are made of synthetic resin such as ABS resin.

  The key plate 2 is provided with, for example, a key groove of an inner groove, and is given an elastic force in the A direction shown in FIG. 1B by a spring 40 (FIG. 3) described later.

  FIG. 2 is an exploded perspective view showing the configuration of the key unit according to the embodiment of the present invention.

  The key unit 1 is configured such that the lower case 11 and the upper case 10 are integrated with each other by fitting a convex portion or a concave portion (not shown) of the upper case 10 into a concave portion or a convex portion (not shown) of the lower case 11. The lower case 11 accommodates the keyless module 7 in the keyless module accommodating portion 11b (FIG. 3A), and a rotating member in which the key plate 2 is attached together with the support member 5 to the rotating member accommodating portion 11c (FIG. 3A). 4 is rotatably supported. The support member 5 is fastened to the lower case 11 with screws 6 after fitting a later-described convex portion provided on the side surface into a concave portion provided on a corresponding surface of the lower case 11.

  The keyless module 7 is operated by a built-in battery, generates a signal including a lock signal or an unlock signal and identification information in response to an operation of the lock button 70 or the unlock button 71, and transmits the vehicle via a built-in antenna. And wirelessly transmit to the receiving device provided for. The receiving device provided in the vehicle recognizes the signal including the lock signal or the unlock signal and the identification information from the received signal, and responds to the lock signal or the unlock signal when the identification information matches the registered identification information. To lock or unlock the door lock of the vehicle.

  FIG. 3A is an exploded perspective view showing the configuration of the key unit according to the embodiment of the present invention, and FIG. 3B is a partially enlarged perspective view.

  The lower case 11 includes a key plate housing portion 11a, a keyless module housing portion 11b that houses the keyless module 7, and a rotating member housing portion 11c. The rotating member accommodating portion 11c has a support shaft 110 and a screw hole 113 on the bottom surface, and has a recess 111 and a recess 112 on the side surface.

  The release button 3 is fitted into the restriction hole 110a of the support shaft 110 of the rotating member accommodating part 11c so that the position of the restriction convex part 3a is aligned, and an elastic force is applied to the side separated from the lower case 11 by the spring 30. As the spring 30, a general coil spring, a conical coil spring, or the like can be used.

  The cylindrical portion of the release button 3 is exposed to the outside through the support hole 4 a of the rotating member 4 and the support hole 5 a of the support member 5. The restricting convex portion 3a is fitted in the restricting hole 110a of the support shaft 110, and the key plate 2 protrudes from the key unit 1 into the concave portion 4c (FIG. 4) provided on the back surface of the rotating member 4 and the key plate housing. Each is fitted in the state of being accommodated in the portion 11a, and the rotation is restricted. The release button 3 is made of ABS resin or the like.

  The rotating member 4 is made of metal and formed by die casting, and is integrated with the key plate 2 by inserting one end of the key plate 2 and inserting the pin 41 into the pin hole 4b and the pin hole 2a. In addition, in order to change the kind of keyway of the key plate 2 for every individual, the key plate 2 is separated, but the key plate 2 and the rotating member 4 may be integrally formed.

  One end of a spring 40 that is a torsion spring is locked in a groove provided on the side of the support hole 4 a of the rotating member 4, and the other end is locked in a groove (not shown) provided on the back surface of the support member 5. Is done. The spring 40 generates an elastic force in the A direction when the key plate 2 protrudes from the key unit 1, and the spring 40 moves toward the state where the key plate 2 is accommodated in the key plate accommodating portion 11a. A stronger elastic force is generated in the direction.

  The support member 5 is formed of ABS resin or the like and has convex portions 50 and 51 on the side surface. The protrusions 50 and 51 of the support member 5 are fitted into the recesses 111 and 112 provided on the side surface of the surface forming the rotation member accommodating portion 11c of the lower case 11 in a state where the rotation member 4 is supported by the lower case 11, respectively. It is done. The convex portions 50 and 51 and the concave portions 111 and 112 are fitted together using the elastic force generated by the material of the support member 5 and the lower case 11.

  After the support member 5 and the lower case 11 are fitted together, the screw 6 passes through the screw through hole 5 b and is fastened to the screw hole 113 of the lower case 11 to fix the support member 5 to the lower case 11.

  4A and 4B are enlarged perspective views showing the operations of the release button 3 and the rotating member 4 of the key unit 1 according to the embodiment of the present invention.

  As shown in FIG. 4 (a), the restricting convex portion 3 a of the release button 3 is formed by the elasticity of the spring 30 in the concave portion 4 c provided in the support hole 4 a of the rotating member 4 when the key plate 2 protrudes from the key unit 1. It is inserted by force.

  As shown in FIG. 4 (b), when the release button 3 is pushed in the B direction, the restricting convex portion 3a fits into the restricting hole 110a, and the concave portion 4c provided in the support hole 4a of the rotating member 4 and the restricting convex portion 3a. And the key plate 2 can be freely rotated.

  Even in a state where the key plate 2 is accommodated in the key plate accommodating portion 11 a, a concave portion (not shown) is provided in the rotating member 4 so that the restricting convex portion 3 a of the release button 3 restricts the rotation of the rotating member 4. In this state, the elastic force of the spring 40 is the largest, and the key plate 2 rotates in the A direction when the restricting convex portion 3a releases the restriction of the rotation of the rotating member 4 by pushing the release button 3 in the B direction. Then, the key plate 2 is in a protruding state.

(Effect of embodiment)
According to the above-described embodiment, since the convex portions 50 and 51 are provided on the support member 5 and are fitted to the concave portions 111 and 112 of the lower case 11, respectively, the elastic force that does not maintain the components in the assembled position by the spring 40 is provided between the components. Even if this occurs, the parts can be easily assembled by fastening the screws 6 without maintaining the elastic force of the assembler.

  As long as the support member 5 is fitted to the lower case 11, a concave portion may be provided in addition to the convex portion, and the convex portion or the concave portion may be single or plural. At this time, the lower case 11 includes concave portions or convex portions corresponding to the convex portions or concave portions of the support member 5 and corresponding to the number thereof.

  Further, the support member 5 and the upper case 10 may be integrally formed, or the release button 3, the rotation member 4, the support member 5, and the like may be attached to the upper case 10.

  Further, the release button 3 does not necessarily have to be the rotation axis of the rotation member 4, and another rotation axis is prepared to limit the rotation of the rotation member 4 such as a convex portion fitted into the concave portion of the rotation member 4. You may have only a structure.

  In addition, as long as the support member 5 and the lower case 11 are fastened, not only the screw 6 but also a rivet or a hook may be used. Further, a screw hole may be provided on the support member 5 side and a screw through hole may be provided on the lower case 11 to fasten the support member 5 and the lower case 11.

  The present invention is not limited to the above-described embodiment, and various modifications can be made without departing from or adjusting the technical idea of the present invention.

DESCRIPTION OF SYMBOLS 1 ... Key unit 2 ... Key plate 2a ... Pin hole 3 ... Release button 3a ... Restriction convex part 4 ... Rotating member 4a ... Support hole 4b ... Pin hole 4c ... Concave part 5 ... Support member 5a ... Support hole 5b ... Screw through-hole 6 ... Screw 7 ... Keyless module 10 ... Upper case 10a ... Holder ring 11 ... Lower case 11a ... Key plate accommodating part 11b ... Keyless module accommodating part 11c ... Rotating member accommodating part 30 ... Spring 40 ... Spring 41 ... Pin 50 ... Convex part 70 ... Lock button 71 ... Unlock button 110 ... Spindle 110a ... Restriction hole 111 ... Recess 112 ... Recess 113 ... Screw hole

Claims (3)

A case having a support shaft;
A cylindrical member supported at one end by the support shaft;
A rotating member supported rotatably about the columnar member as a rotation axis, and holding a key plate;
A spring having one end attached to the rotating member and generating an elastic force in a rotating direction of the rotating member;
The cylindrical member has a hole that supports the other end opposite to the one end, and a mounting portion to which the other end of the spring is attached, and is fitted to the case so that the spring is between the rotating member and said rotary member in a state that caused the elastic force have a support member for supporting by sandwiching said case,
The case has a concave portion or a convex portion,
The support member has a convex portion or a concave portion corresponding to the concave portion or the convex portion of the case,
A key unit , wherein the support member is fastened and fixed to the case after the protrusions or recesses of the support member and the recesses or protrusions of the case are fitted together using elastic force. . The case has a screw hole;
Wherein the support member has a threaded through-hole, in mated condition with said casing, according to claim 1 to the screw hole of the case, characterized in that it is fastened and fixed by screws passing through the screw through hole Key unit as described in Placing one end of the cylindrical member on a support shaft provided in the case;
Fitting a rotating member holding a key plate to the cylindrical member from the axial direction of the cylindrical member;
A support member having a hole that supports the other end of the cylindrical member opposite to the one end and an attachment portion to which one end of a spring is attached, and the hole is fitted to the cylindrical member and one end of the spring is attached to the attachment portion. The other end is attached to the rotating member, and the convex portion or the concave portion provided on the support member is applied to the concave portion or the convex portion provided on the case from the axial direction of the cylindrical member by using elastic force. Mating process ,
A method for assembling the key unit, comprising the step of fastening and fixing the support member and the case .

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