JP2009057800A - Portable machine of electronic key system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a portable machine of an electronic key system excellent in removal operation of an emergency key. <P>SOLUTION: The portable machine comprises a flat portable machine body 1, a rotation locking member 30 detachably holding the key 2 inside, and a key unfixing button 50 which is operated upon removing the key 2 from the portable machine body 1. The rotation locking member 30 comprises a rotating body 36 which is a long body arranged perpendicularly to a rotational axis of the rotation locking member 30 so that it may rotate against a resilient force of a coil spring 60, and a protrusion 32 formed on a side end part 31 of the rotating body in a manner of protruding toward a rear wall of the portable machine body 1. The key unfixing button 50 is arranged to be exposed to a face wall 21, which is perpendicular to a direction of the thickness, of outer walls of the portable machine body 1. By pressing the key unfixing button 50 toward the rear wall, the side end part 31 of the rotating body uplifts toward the face wall 21 as the other side end part 33 of the rotating body rotates toward the rear wall, so that the protrusion 32 may be removed from a through hole 3. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a portable device carried by a user for locking and unlocking a vehicle in an electronic key system.

  Conventionally, an identification code is collated by wireless communication between a portable device carried by a user and an electronic device mounted on the vehicle, and the vehicle is locked and unlocked based on the collation result (hereinafter referred to as unlocking and unlocking). There is an electronic key system that permits engine start and the like.

  The portable device of this electronic key system has the above-mentioned wireless communication function and an emergency key that can mechanically lock and unlock the vehicle in an emergency such as occurrence of a failure of the electronic key system or a battery exhaustion. The emergency key is detachably attached to the portable device by a connecting mechanism (see, for example, Patent Document 1).

  The connection mechanism described in Patent Document 1 is configured by fitting a fitting piece provided in an emergency key and a hook fitting hole provided in a portable device case. When the emergency key is detached from the portable device case, an operation of sliding the detachable knob against the elastic force of the compression coil spring is performed in order to release the coupling mechanism.

The detachable knob is provided on the side wall in the thickness direction of the portable machine body having a thin box shape. When the sliding operation is performed, the fitting piece moves together with the attaching / detaching knob, the fitting with the hook fitting hole is released, and the emergency key can be pulled out from the portable device case.
JP 2006-45857 A

  However, since the detachable knob is disposed on the side wall having a narrow surface area, the surface area of the operable portion is reduced, and there is a problem that the detachability of the emergency key is not good. In addition, since the slide operation slides with a fingertip placed on a detachable knob having a small surface area, it is necessary to apply force to the fingertip, and there is a problem that the fingertip becomes painful. In particular, when the user's nails are long, the nails are easily damaged.

  The present invention has been made in view of the above problems, and an object of the present invention is to provide a portable device of an electronic key system excellent in emergency key detachment operability.

The present invention employs the following technical means to achieve the above object. According to a first aspect of the present invention, there is provided a portable device of an electronic key system including an emergency key that electrically locks and unlocks a specific lock by mechanically locking and unlocking the lock by collating an identification code by wireless communication. Which is an invention
A flat-shaped portable device main body storing the emergency key, a rotation locking member that is rotatably supported inside the portable device main body and holds the emergency key detachably, and the emergency key from the portable device main body A key lock release button operated when removing,
The rotation locking member has a shape that extends in a direction perpendicular to the rotation axis and rotates against the elastic force of the elastic member, and a portable device main body at one end of the rotation body. And a locking part protruding to the back wall side of the
The emergency key has a locked portion that engages with the locking portion in a state of being stored in the portable device body,
The key lock release button is provided to be exposed on the front wall which is a wide surface perpendicular to the thickness direction of the mobile device body in the outer wall of the mobile device body,
When the key fixing release button is pushed from the front wall side toward the back wall side, the other side end portion of the rotating body rotates toward the back wall side so that the one side end portion is the front wall. It floats to the side, and it is characterized by detaching the locking part from the locked part.

  According to the present invention, by arranging the key fixing release button on the front wall that is a wide surface, the button fixing release button has a high degree of freedom in designing the size, shape, position, etc., and does not place a burden on the fingertip. Can be provided. Therefore, it is possible to provide a portable device with an electronic key system that is excellent in detachability of emergency keys.

  Moreover, it is preferable that the said front wall is formed in the rectangular shape, and the key fixed release button is exposed and provided in the corner | angular part of the said front wall. According to the present invention, the emergency key and the rotation locking member can be arranged together near the side wall inside the portable device body, so that the arrangement space for other parts such as a circuit board can be increased, and accordingly Since the internal space of the portable device body can be used effectively, the portable device body can be downsized.

  In addition, a circuit board constituting a communication means for wireless communication is provided inside the portable device body, and this circuit board is arranged inside the portable device body so as to overlap with the emergency key in the thickness direction of the portable device body. It is preferable that

  According to the present invention, since a circuit board having a large surface area can be arranged in a wide space inside the portable device body formed between the front wall and the back wall, an operation button for locking and unlocking the vehicle door, etc. Can be made as large as possible to be exposed on the surface of the front wall, and an operation button that is easy to press and excellent in operability can be provided.

(First embodiment)
The portable device of the electronic key system in the first embodiment will be described with reference to FIGS. In the electronic key system, an identification code (ID) is collated by wireless communication between a small portable device carried by a user and an in-vehicle electronic device mounted on the vehicle, and the lock of the vehicle is locked based on the collation result. And unlocking (hereinafter referred to as locking / unlocking), engine start permission, and the like are performed electrically.

  FIG. 1 is a perspective view showing an appearance of a portable device in the present embodiment. As shown in FIG. 1, both portable device bodies have a flat, substantially rectangular parallelepiped shape formed by combining a front case 10 and a back case 70 made of resin.

  Inside the portable device body 1 are a wireless communication unit (circuit board 80) that is a wireless communication means for collating the identification code with the in-vehicle electronic device, and a battery as a charger that supplies power to the wireless communication unit. 84 (see FIG. 3). FIG. 3 is a cross-sectional view of the schematic internal structure of the portable device body 1 when viewed from the side.

  The wireless communication unit is provided on the circuit board 80. The circuit board 80 has an antenna for performing wireless communication with the communication circuit of the in-vehicle electronic device, and the electromagnetic induction type wireless communication with the transponder transmission / reception circuit of the in-vehicle electronic device. A transponder unit or the like is provided. As a result, when wireless communication with the wireless communication unit becomes impossible due to insufficient power of the battery of the portable device, the electromagnetic induction type wireless communication is performed by bringing the portable device and the transponder transmission / reception circuit of the in-vehicle electronic device close to each other. The identification code can be collated by.

  The portable device body 1 also stores an emergency key 2 that can mechanically lock and unlock the vehicle and a rotation locking member 30 that detachably holds the emergency key 2. The emergency key 2 is used to lock and unlock the vehicle door when wireless communication with the wireless communication unit becomes impossible due to insufficient battery power.

  On the front wall 21 of the portable device main body 1 (the upper surface of the portable device main body 1 in FIG. 1), a trunk button 52 that accepts an input of a trunk lock locking / unlocking instruction, and a forced alarm output by a receiver (on-vehicle electronic device) (panic) A panic button 53 that accepts an execution request of an alarm), a door unlock button 54 that accepts an input of an unlocking instruction for a vehicle door, a door lock button 55 that accepts an input of an unlocking instruction for a vehicle door, etc. Is provided.

  The front wall 21 constitutes a wide surface of the front case 10 that is arranged perpendicular to the thickness direction of the portable device body 1 among the outer walls that constitute the outer surface of the portable device body 1. On the opposite side of the front wall 21, a back wall that is a wide surface of the back side case 70 that is fitted and integrated with the front side case 10 is formed. The front side case 10 and the back side case 70 form a mating portion on the side walls in four directions other than the front wall 21 and the back wall.

  A user (for example, a driver) locks and unlocks the vehicle door by pushing down the door unlock button 54, the door lock button 55, and the like. That is, the portable device functions as a remote operation terminal (remote key) of a wireless door lock device for a vehicle equipped with an in-vehicle electronic device.

  The front wall 21 of the front case 10 is formed with openings 11, 12, 13, 14 for allowing the trunk button 52, the panic button 53, the door unlock button 54, and the door lock button 55 to face the outside. ing. Further, an opening 15 is provided at a corner of the front wall 21, and a key fixing release button 50 having a pushing surface viewed from the opening 15 is disposed.

  The key lock release button 50 is an operation unit for releasing the lock of the emergency key 2 housed in the portable device body 1. The emergency key 2 is a mechanical key that can mechanically lock and unlock the vehicle when the battery 84 of the portable device runs out of power.

  The emergency key 2 is housed in a state in which a key portion 5 to be inserted into a keyhole of a lock such as a vehicle door is disposed in a housing portion 72 inside the portable device main body 1 and the grip portion 4 protrudes from a side wall of the portable device main body 1. Yes. The key part 5 is a long and thin plate made of metal, and a keyway extending in the longitudinal direction is formed on the surface thereof. A through hole 3 as a locked portion for locking and fixing the emergency key 2 housed in the portable device main body is provided on the flat surface on the tip side of the key portion 5. The grip portion 4 is located at one end of the key portion 5 and includes a resin grip that is formed wider than the key portion 5 (not shown). The emergency key 2 can be inserted into and pulled out from the interior of the portable device body 1 so as to be slidable in the longitudinal direction.

  FIG. 2 is an exploded perspective view showing a configuration of a key fixing release button 50 for releasing the emergency key 2 and a rotation locking member 30 for detachably holding the emergency key 2. As shown in FIG. 2, the key lock release button 50 includes an operation portion that has a flat, substantially rectangular parallelepiped shape, and a shaft portion 51 that extends from the operation portion toward the other side by a predetermined length. In the middle of the shaft portion 51, a pressing portion 51a that is orthogonal to the shaft portion 51 and extends radially is provided.

  The rotation locking member 30 has a long shape extending in a direction perpendicular to the rotation axis, and has a seesaw structure rotation body 36 that rotates about the rotation axis, and one of the rotation bodies. A protrusion 32 having a shape protruding from the side end 31 toward the back wall of the portable device body 1. Further, an insertion port 34 for inserting the shaft portion 51 is provided in the other end portion 33 of the rotating body, and a pin 35 as a rotating shaft center is provided in the middle of the long rotating body 36. It protrudes outward from both side surfaces so as to be orthogonal to.

  The protruding portion 32 functions as a locking portion for locking and fixing the emergency key 2 housed in the portable device main body 1 at a predetermined position, and is formed in the through hole 3 that is a locked portion of the emergency key 2. It is engaged by fitting. The engagement between the protrusion 32 and the through hole 3 constitutes a lock mechanism for the emergency key 2 in the portable device body 1. In addition, the protrusion 32 gradually increases in height from the end of the one end portion 31 of the rotating body to the highest height of the protrusion 32 in a state where the rotation locking member 30 is attached to the front case 10. The outer surface is inclined so as to be. The locked portion of the emergency key 2 can be constituted by a bottomed concave portion that engages with the protrusion 32 with a predetermined relationship in addition to the through hole 3.

  The front case 10 is provided with two walls 16 and 17 that are erected toward the back wall so as to face each other. A hole 18 and a hole 19 are inserted in the wall 16 and the wall 17 for inserting and supporting the pin 35 of the rotating body 36 in a freely rotatable manner. A space between the wall 16 and the wall 17 constitutes a storage portion in which the rotating body 36 is stored when the rotation locking member 30 is installed inside the portable device main body 1.

  A coil spring 60 that is an elastic member is attached to the rotation locking member 30. The coil spring 60 is formed by forming a metal wire in a substantially U shape, and a rotating body support portion 61 in which one end side of the U shape is bent in an L shape, and the other end side of the U shape is supported by a rotating body. A case support portion 62 bent in an L shape in the same direction as the portion 61, and a coil portion 63 spirally wound several times between the rotating body support portion 61 and the case support portion 62. .

  As shown in FIG. 3, the circuit board 80 including the wireless communication unit is arranged in an electronic component arrangement unit configured to traverse substantially the entire left and right direction inside the portable device body 1. The circuit board 80 occupies most of the region on the back surface 20 side of the front wall 21 and is arranged in parallel to the front wall 21. On the back surface 20 side of the front wall 21, a waterproof cover 83 that prevents water from entering is provided so as to cover the entire upper part of the circuit board 80, thereby protecting the wireless communication unit from moisture.

  On the back side of the waterproof cover 83, switches 81, 82 and the like that are turned on when various operation buttons such as the trunk button 52 are pressed are provided on the circuit board 80. On the back side of the circuit board 80, the emergency key 2 and the battery 84 laminated with the circuit board 80 in the thickness direction are arranged. The emergency key 2 and the battery 84 are arranged side by side in parallel with the front wall 21. That is, the emergency key 2, the battery 84, and the circuit board 80 have a two-stage laminated structure inside the portable device body 1.

  The emergency key 2 is housed in an elongated rectangular parallelepiped housing portion 72 surrounded by a housing frame 71 formed in the back case 70, and the battery 84 is surrounded and held by a battery holder 85 provided on the back side of the circuit board 80. Has been. In addition to the two-layered structure, the emergency key 2 is arranged such that the wide surface of the key portion 5 (the upper surface of the key portion 5 in FIG. 3) is parallel to the front wall 21. This configuration contributes to further reducing the length of the portable device body 1 in the thickness direction.

  Next, a procedure for assembling the key fixing release button 50, the rotation locking member 30, the coil spring 60, and the front case 10 having the above-described configuration will be described. First, in the state where the pin 35 of the rotation locking member 30 is passed through the hole of the coil portion 63 of the coil spring 60, the rotation body support portion 61 of the coil spring 60 is positioned on the front wall side end surface near the one end portion 31 of the rotation body. To hit. Further, the key fixing release button 50 is inserted by inserting the shaft portion 51 extending from the key fixing release button 50 into the insertion port 34 formed in the other end portion 33 of the rotating body until the pressing portion 51a hits the rotating body 36. The rotation locking member 30 and the coil spring 60 are assembled together.

  Then, the integrated parts are installed at a predetermined position between the two walls 16 and 17 erected from the back surface 20 of the front case 10 to complete the assembly. At this time, the operation part of the key fixing release button 50 is installed so as to be fitted into the opening 15 of the front case 10, and the rotation locking member 30 is provided with the holes 18 and 19 in which the pins 35 are formed in the walls 16 and 17, respectively. It attaches to the front side case 10 so that it may penetrate (refer FIG. 2 and FIG. 4).

  Next, a procedure for storing the emergency key 2 in the portable device main body 1 will be described. First, when the emergency key 2 is inserted through the insertion opening formed in the side wall of the portable device body 1, the key portion 5 is guided to the storage portion 72 formed by the storage frame 71 of the back case 70, and further inserted. The tip of the key portion 5 comes into contact with the protruding portion 32 of the rotation locking member 30. From this state, when the emergency key 2 is inserted deeply, the tip of the key portion 5 lifts the projection 32 toward the front wall 21 against the elastic force of the coil spring 60, and accordingly, the rotation is performed. The moving body 36 rotates around the pin 35 (counterclockwise in FIG. 5).

  Further, when the emergency key 2 is inserted deeply and the through hole 3 of the emergency key 2 comes to a position facing the protrusion 32, the interval between the rotating body support portion 61 and the case support portion 62 is restored from the reduced state. The rotating body 36 rotates and returns to its original position (clockwise in FIG. 5) due to the elastic force (biasing force) to try, and the projection 32 is fitted and engaged with the through-hole 3 so that the emergency key 2 is connected to the portable device. It is fixed by the storage portion 72 in the main body 1. In the state where the protrusion 32 and the through-hole 3 are engaged, the rotational locking member 30 is subjected to an elastic force directed toward the back wall by the rotating body support 61. That is, the one end portion 31 of the rotating body is urged by the coil spring 60 from the front wall 21 side toward the back wall side.

  Next, a procedure for taking out the emergency key 2 stored in this way will be described with reference to FIGS. FIG. 4 is an enlarged view showing the inside of the portable device main body 1 in a state where the emergency key 2 is engaged and fixed to the rotation locking member 30. FIG. 5 is an enlarged view showing the inside of the portable device main body 1 in a state in which the engagement between the emergency key 2 and the rotation locking member 30 is released. 4 and 5 show a state where components such as the back case 70 and the circuit board 80 are removed for convenience.

  As shown in FIG. 4, the pressing surface of the key fixing release button 50 in this state is in a position where the surface of the key fixing release button 50 is flush with the surrounding surface wall 21, and the pressing portion 51 a of the key fixing release button 50 is rotated by the coil spring 60. It is in the state where it was pushed toward the front wall 21 from the other side end part 33 of the rotating body by the elastic force urged by the one side end part 31.

  First, the pressing surface of the key fixing release button 50 is pressed from the outside toward the inside by the belly of the finger (from the front wall 21 side to the back wall side). Then, the other side end portion 33 of the rotating body is pushed down toward the back wall by the pressing portion 51a, and accordingly, the rotating body 36 starts to rotate counterclockwise in FIG. In this rotation, the rotating body 36 starts rotating so that the one end portion 31 of the rotating body floats to the front wall 21 side while resisting the elastic force of the coil spring 60 trying to return to the original state of FIG. .

  When the key fixing release button 50 is further pushed to the back, the rotating body 36 is further rotated, the protrusion 32 is lifted to the front wall 21 side, the engagement with the through hole 3 is released, and the protrusion 32 is It will be detached from the through hole 3.

  Next, the emergency key 2 is pulled out from the portable device main body 1 by pulling the grip 4 (grip) of the emergency key 2 to the outside of the portable device main body while maintaining the state where the key fixing release button 50 is pressed in this way. be able to. Then, when the finger is released from the key fixing release button 50, the one end portion 31 of the rotating body is urged toward the back wall side by the elastic force of the coil spring 60 and rotates around the pin 35 (see FIG. 4 position), the other end portion 33 of the rotating body is lifted to the front wall 21 side, and the rotation locking member 30 returns to the original position (position of FIG. 4). At this time, the key fixing release button 50 is returned to the position where it is flush with the surface of the front wall 21.

  As described above, the portable device of the present embodiment is a flat-shaped portable device main body 1 and a rotation locking member that is rotatably supported inside the portable device main body 1 and that holds the emergency key 2 in a detachable manner. 30 and a key fixing release button 50 operated when removing the emergency key 2 from the portable device main body 1. The rotation locking member 30 has an elongated shape that extends in a direction perpendicular to the pin 35 that is the rotation axis thereof, and a rotation body 36 that rotates against the elastic force of the coil spring 60, and a rotation body. The one end portion 31 has a protrusion 32 protruding toward the back wall of the portable device body 1. The emergency key 2 has a through hole 3 that engages with the protrusion 32 in a state of being housed in the portable device body 1. Further, the key lock release button 50 is provided to be exposed on the front wall 21 which is a wide surface perpendicular to the thickness direction of the mobile device body 1 in the outer wall of the mobile device body 1. When the other end portion 33 of the rotating body rotates toward the back wall side by being pushed from the front wall 21 side toward the back wall side, the one end portion 31 of the rotating body moves toward the front wall 21 side. The protrusion 32 is lifted up and separated from the through hole 3.

  According to the above configuration, the key fixing release button 50 is arranged on the front wall 21 which is a wide surface, so that the degree of freedom in designing the size, shape, position, etc. of the key fixing release button 50 is high, and a burden is applied to the fingertip. No button operation can be realized. Further, the pressing surface of the key fixing release button 50 can be designed on the surface of the portable device main body 1 with a relatively large area. In addition, since the rotation direction of the rotation locking member 30 is set in the thickness direction of the portable device body 1, in the wide space inside the portable device body 1 formed between the front wall 21 and the back wall, A wide space excluding the occupied space corresponding to the width of the emergency key 2 and the rotation locking member 30 can be effectively used as a storage space for other components such as the circuit board 80.

  Further, the key fixing release button 50 is provided so as to be exposed at the corner of the rectangular front wall 21. According to this configuration, by arranging the emergency key 2 and the rotation locking member 30 close to the side wall inside the portable device main body 1, the arrangement space for other components such as the circuit board 80 can be set large. it can. In addition, since the arrangement space for the circuit board 80 and the like can be increased inside the portable device body 1, various operation buttons such as the door lock button 55 can be enlarged to improve operability, and the various operation buttons are symmetrically mounted on the front wall. It becomes easy to arrange | position to 21, and the superiority of the operativity by a user's handedness mistake (right-handed, left-handed) can be suppressed.

  In addition, the circuit board 80 is arranged inside the portable device main body 1 so as to overlap the emergency key 2 in the thickness direction of the portable device main body 1. According to this configuration, since the circuit board 80 having a large surface area can be arranged, an operation button for locking and unlocking the vehicle door can be made as large as possible and exposed to the outside, and the operation button is easy to press. Is obtained.

It is the perspective view which showed the external appearance of the portable device of the electronic key system in 1st Embodiment. It is the disassembled perspective view which showed the structure of the key fixing release button and rotation locking member which cancel | release fixation of an emergency key in the portable device of 1st Embodiment. It is sectional drawing when the schematic structure inside the portable device of the electronic key system in 1st Embodiment is seen from the side. It is the enlarged view which showed the inside of the portable machine main body of the state in which the emergency key is engaged and fixed to the rotation latching member in 1st Embodiment. FIG. 3 is an enlarged view showing the inside of the portable device main body in a state where the engagement of the emergency key and the rotation locking member is released in the first embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Portable machine body 2 ... Emergency key 3 ... Through-hole (locked part)
DESCRIPTION OF SYMBOLS 10 ... Front side case 21 ... Front wall 30 ... Rotation locking member 31 ... One side edge part of rotation body 32 ... Projection part (locking part)
33 ... The other end of the rotating body 35 ... Pin (Rotating shaft of the rotating body)
36 ... Rotating body 50 ... Key fixing release button 60 ... Coil spring (elastic member)
70 ... Back side case 80 ... Circuit board

Claims (3)

A portable device of an electronic key system including an emergency key that electrically locks and unlocks a specific lock by collating an identification code by wireless communication, and mechanically locks and unlocks the lock,
A flat-shaped portable device body in which the emergency key is stored;
A rotation locking member that is rotatably supported inside the portable device body and holds the emergency key so as to be detachable;
A key fixing release button that is operated when removing the emergency key from the portable device body,
The rotation locking member has a shape that extends in a direction perpendicular to the rotation axis and rotates against the elastic force of the elastic member, and the rotation member on one end of the rotation body. Having a locking part protruding to the back wall side of the portable device body,
The emergency key has a locked portion that engages with the locking portion in a state of being housed in the portable device body,
The key lock release button is provided to be exposed on a front wall that is a wide surface perpendicular to the thickness direction of the mobile device body among the outer walls of the mobile device body,
When the key fixing release button is pushed from the front wall side toward the back wall side, the one side end portion is rotated as the other end portion of the rotating body rotates toward the back wall side. A portable device of an electronic key system, which floats to the front wall side and disengages the locking portion from the locked portion.   3. The portable device of the electronic key system according to claim 2, wherein the front wall is formed in a rectangular shape, and the key fixing release button is exposed at a corner portion of the front wall. A circuit board constituting the communication means of the wireless communication is provided inside the portable device body,
3. The portable device of the electronic key system according to claim 1, wherein the circuit board is disposed inside the portable device main body so as to overlap the emergency key in the thickness direction.

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