JP2021025355A - Portable key device - Google Patents

Abstract

To provide a portable key device provided with a rotatable and accommodable mechanical key, which suppresses the occurrence of various problems such as an increase in cost related to a structure for rotating the mechanical key and a decrease in ease of assembly.SOLUTION: A portable key device includes a case, a release knob 123 that has a columnar part whose tip protrudes from the opening of an upper case 101 and an abutting part 123B that abuts on the back side of the upper case 101, and can be press-operated by the columnar part, a mechanical key that can be rotated around the release knob 123 serving as a rotation axis with respect to the case and accommodated therein, a coil spring 124 that urges the release knob 123 from the back side in an axial direction D1, and an inclined surface 104Ba provided on the back side of the upper case 101 so as to extend along a peripheral edge of the opening, and sliding when being pressed with the abutting part 123B of the release knob 123, thereby causing the release knob 123 to rotate in a direction D2 so as to be opened together with the mechanical key.SELECTED DRAWING: Figure 10

Description

The present invention relates to a portable key device.

Conventionally, there is known a so-called electronic key system in which a lock mechanism for a vehicle door can be locked and unlocked by remote control from a portable key device carried by a user. As a portable key device used in such an electronic key system, for example, there is one provided with a mechanical key provided so as to be rotatable and accommodating in a case.

For example, in Patent Document 1 below, when the release button is pressed while the mechanical key is in the retracted position, the rotor member of the mechanical key is rotated by the urging force from the torsion spring to completely expand the mechanical key. A so-called jackknife type key unit that can be automatically rotated to a position is disclosed.

Japanese Unexamined Patent Publication No. 2017-17172

However, in the technique of Patent Document 1, since it is necessary to form rotation stoppers at both ends of the torsion spring, the cost related to the structure for rotating the mechanical key increases, and the ease of assembling the electronic key decreases. , Etc. may occur.

The portable key device of one embodiment has a case, a columnar portion whose tip protrudes from an opening of the case, and a contact portion that abuts on the back side of the case, and a release knob that can be pressed by the columnar portion. A mechanical key that can rotate and accommodate the case with the release knob as the rotation axis, a coil spring that urges the release knob from the back side in the axial direction, and the peripheral edge of the opening on the back side of the case. It is provided so as to extend along the portion, and is provided with an inclined surface that rotates the release knob in the opening direction together with the mechanical key by being pressed against the contact portion of the release knob and sliding.

According to one embodiment, in a portable key device including a mechanical key that can be rotated and accommodated, various problems such as an increase in the cost related to a structure for rotating the mechanical key and a decrease in ease of assembly. The occurrence can be suppressed.

External perspective view of the electronic key according to one embodiment External perspective view of the electronic key according to one embodiment An exploded perspective view showing the configuration of the electronic key according to the embodiment. An exploded perspective view showing the configuration of the mechanical key according to the embodiment. A perspective sectional view showing a configuration of a mechanical key according to an embodiment. AA sectional view of the electronic key shown in FIG. External perspective view showing the back side of the upper case according to the embodiment Bottom view of the upper case according to one embodiment BB sectional view of the upper case shown in FIG. Partially enlarged perspective view of the back side of the upper case according to the embodiment The figure for demonstrating the operation of the electronic key which concerns on one Embodiment The figure for demonstrating the operation of the electronic key which concerns on one Embodiment The figure for demonstrating the operation of the electronic key which concerns on one Embodiment

Hereinafter, one embodiment will be described with reference to the drawings.

[Overview of Electronic Key 10]
1 and 2 are external perspective views of the electronic key 10 according to the embodiment. FIG. 1 represents an electronic key 10 in a state in which the mechanical key 120 is closed (hereinafter, referred to as a “closed state”). FIG. 2 represents an electronic key 10 in a state in which the mechanical key 120 is open (hereinafter, referred to as an “open state”). In the following description, for convenience, the Z-axis direction in the figure (thickness direction of the case 100) is the vertical direction, the Y-axis direction in the figure (short direction of the case 100) is the horizontal width direction, and the X-axis direction in the figure. (The longitudinal direction of the case 100) is the front-back direction.

The electronic key 10 shown in FIG. 1 is a portable key device carried by a user, and is a device that constitutes an electronic key system together with an in-vehicle device (not shown) mounted on a vehicle. The electronic key 10 can remotely control the locking and unlocking of the lock mechanism of the vehicle door by wirelessly communicating with the in-vehicle device according to the user operation.

As shown in FIGS. 1 and 2, the electronic key 10 includes a case 100 and a mechanical key 120 rotatably supported by the case 100. The case 100 is a container-shaped part having a substantially rectangular parallelepiped shape, which is formed of a resin material such as ABS resin or PC resin. The electronic key 10 can undergo a state transition between an open state in which the mechanical key 120 is open and a closed state in which the mechanical key 120 is closed by rotating the mechanical key 120.

As shown in FIG. 1, in the closed state, the electronic key 10 is in a state in which the key plate 122 of the mechanical key 120 is housed inside the storage space 100A of the case 100. Then, when the release knob 123 projecting from the upper surface of the case 100 is pressed, the electronic key 10 causes the mechanical key 120 to rotate around the rotation center axis AX whose axial direction is the vertical direction of the case 100. , Rotates clockwise when viewed from above. Then, when the mechanical key 120 rotates 180 ° from the closed state of the electronic key 10, the key plate 122 linearly moves forward (in the positive direction of the X-axis in the drawing) from the tip surface of the case 100 as shown in FIG. It is in a protruding state, that is, an open state.

For example, the electronic key 10 transitions from a closed state to an open state when the release knob 123 is pressed when the user mechanically rotates the key cylinder of the vehicle using the key plate 122. Then, in the open state of the electronic key 10, the key plate 122 is inserted into the key cylinder provided in the vehicle to mechanically rotate the key cylinder to lock or unlock the lock mechanism of the vehicle door. It can be locked and the engine of the vehicle can be started.

[Configuration of electronic key 10]
FIG. 3 is an exploded perspective view showing the configuration of the electronic key 10 according to the embodiment. As shown in FIG. 3, the electronic key 10 includes an upper case 101, a mechanical key 120, an intermediate case 103, and a lower case 102 in this order from the upper side in the drawing.

The upper case 101 is a cover-like member that covers the upper side of the intermediate case 103. The lower case 102 is a cover-like member that covers the lower side of the intermediate case 103. The intermediate case 103 is a member arranged between the upper case 101 and the lower case 102. The upper case 101, the intermediate case 103, and the lower case 102 are combined with each other to form the case 100 shown in FIGS. 1 and 2.

Knobs 101a to 101c are provided on the upper surface of the upper case 101. For example, the knob 101a is pressed by the user when locking the vehicle door locking mechanism. Further, for example, the knob 101b is pressed by the user when unlocking the lock mechanism of the vehicle door. Further, for example, the knob 101c is pressed by the user when unlocking the lock mechanism of the vehicle trunk. Further, a circular opening 101A is formed in the vicinity of the left front corner portion (the corner portion on the positive side of the X-axis and the positive side of the Y-axis) on the upper surface of the upper case 101.

The mechanical key 120 is provided so as to be rotatable and accommodating with respect to the case 100. The mechanical key 120 includes a rotor 121, a key plate 122, and a release knob 123, all of which are made of metal.

The release knob 123 is a substantially columnar member. The release knob 123 is provided on the rotation center axis AX (see FIGS. 1 and 2) so that the upper end thereof protrudes from the opening 101A formed on the upper surface of the upper case 101. The release knob 123 can rotate together with the rotor 121 with the rotation center axis AX as the center of rotation. When the release knob 123 is pressed by the user, the rotation lock of the rotor 121 can be released to make the rotor 121 rotatable.

The rotor 121 is rotatably provided in the accommodation space 100B of the case 100. The rotor 121 is provided with a release knob 123 penetrating in the vertical direction, and is provided with a detent to the release knob 123. As a result, the rotor 121 can rotate together with the release knob 123 in the accommodation space 100B. The rotor 121 supports the root portion of the key plate 122. By rotating, the rotor 121 shifts the state of the key plate 122 between a state in which the key plate 122 protrudes forward from the case 100 and a state in which the key plate 122 is housed in the storage space 100A of the case 100.

The key plate 122 is an elongated plate-shaped part. The key plate 122 is a portion for mechanically rotating the key cylinder by being inserted into the key cylinder provided in the vehicle. The key plate 122 may be integrally formed with the rotor 121.

The intermediate case 103 supports various components (for example, circuit boards, batteries, etc.). As shown in FIG. 3, an accommodation space 100B in which the rotor 121 is rotatably accommodated is formed in the left front corner portion (the corner portion on the positive side of the X axis and the positive side of the Y axis) of the intermediate case 103. Further, a storage space 100A for accommodating the key plate 122 is formed on the left side portion (side portion on the positive side of the Y axis) of the intermediate case 103.

In the intermediate case 103, a leaf spring 105 is provided on the inner bottom surface of the accommodation space 100A. The leaf spring 105 is a lever-shaped elastic member extending linearly in the X-axis direction. The front end portion (end portion on the positive side of the X-axis) of the leaf spring 105 is fixed to the inner bottom surface of the accommodation space 100A of the intermediate case 103. The leaf spring 105 is integrally formed with the intermediate case 103. The leaf spring 105 urges the key plate 122 housed in the accommodation space 100A at the rear end portion (the end portion on the negative side of the X axis) in the outward direction (Y-axis positive direction).

[Structure of mechanical key 120]
FIG. 4 is an exploded perspective view showing the configuration of the mechanical key 120 according to the embodiment. FIG. 5 is a perspective sectional view showing the configuration of the mechanical key 120 according to the embodiment. FIG. 6 is a cross-sectional view taken along the line AA of the electronic key 10 shown in FIG.

As shown in FIG. 4, the mechanical key 120 includes a rotor 121, a key plate 122, a release knob 123, a coil spring 124, and a spring holder 125.

As shown in FIG. 4, a through hole 121A that penetrates the rotor 121 in the vertical direction is formed at the center of rotation of the rotor 121. The through hole 121A has a substantially circular opening shape in a plan view from above (Z-axis positive direction). A pair of engaging grooves 121B and a pair of engaging grooves 121C are formed on the inner peripheral surface of the through hole 121A. The pair of engaging grooves 121B are provided point-symmetrically with respect to the center of the through hole 121A (that is, the center of rotation of the rotor 121). The pair of engaging grooves 121C are provided point-symmetrically with respect to the center of the through hole 121A (that is, the center of rotation of the rotor 121). However, on the inner peripheral surface of the through hole 121A, the pair of engaging grooves 121B and the pair of engaging grooves 121C are provided at positions different from each other by 90 °.

The release knob 123 is a columnar and hollow member whose axial direction is generally in the vertical direction. The lower portion of the release knob 123 is slidably fitted in the through hole 121A formed at the center of rotation of the rotor 121 in the vertical direction. As a result, the release knob 123 functions as a rotation axis of the rotor 121 and rotates together with the rotor 121. The upper portion of the release knob 123 penetrates the opening 101A (see FIG. 3) formed in the upper case 101 from the back side of the upper case 101. As a result, the upper portion of the release knob 123 is provided so as to project from the opening 101A, and a pressing operation for unlocking the rotation of the mechanical key 120 becomes possible.

The release knob 123 has a columnar portion 123A, a pair of vertical wall portions 123B, and a pair of protrusions 123C. The columnar portion 123A is a columnar and hollow portion. The pair of vertical wall portions 123B is an example of a "contact portion". The pair of vertical wall portions 123B are provided on the outer peripheral surface of the columnar portion 123A point-symmetrically with respect to the center of the columnar portion 123A. The pair of protrusions 123C are provided at the lower end of the outer peripheral surface of the columnar portion 123A point-symmetrically with respect to the center of the columnar portion 123A. On the outer peripheral surface of the columnar portion 123A, the pair of protrusions 123C and the pair of vertical wall portions 123B are provided at positions different from each other by 90 °.

As shown in FIGS. 5 and 6, the pair of vertical wall portions 123B of the release knob 123 slide in the vertical direction in the pair of engaging grooves 121B provided on the inner peripheral surface of the through hole 121A of the rotor 121. Fitted as possible. Further, the pair of protrusions 123C (see FIG. 4) of the release knob 123 are vertically provided in the pair of engagement grooves 121C (see FIG. 4) provided on the inner peripheral surface of the through hole 121A of the rotor 121. It is slidably fitted. As a result, the release knob 123 is provided so as to be slidable in the vertical direction with respect to the rotor 121, and is prevented from rotating with respect to the rotor 121 to rotate together with the rotor 121.

As shown in FIG. 4, the pair of engaging grooves 121C are formed having a constant height dimension upward from the lower end of the inner peripheral surface of the through hole 121A of the rotor 121, but penetrate through the groove 121C. It does not reach the upper end of the inner peripheral surface of the hole 121A. Therefore, when the pair of protrusions 123C abuts on the upper ends of the pair of engagement grooves 121C, further upward movement of the release knob 123 with respect to the rotor 121 is locked. As a result, the release knob 123 is prevented from falling out of the rotor 121 upward.

The coil spring 124 is provided between the release knob 123 and the spring holder 125 so as to be elastically deformable in the vertical direction. As shown in FIG. 5, the upper portion of the coil spring 124 is housed in the internal space 123D of the release knob 123. The upper end of the coil spring 124 abuts on the ceiling surface of the internal space 123D. The lower part of the coil spring 124 is supported by the spring holder 125. The coil spring 124 urges the release knob 123 upward by its own spring force.

The spring holder 125 is a container-shaped member having an open upper portion. The spring holder 125 supports the lower part of the coil spring 124. The spring holder 125 is fitted into an opening 103A (see FIGS. 3 and 6) having the same outer shape as the outer shape of the spring holder 125 formed at the bottom of the accommodation space 100B in the intermediate case 103. As a result, the spring holder 125 is fixed to the bottom of the accommodation space 100B.

According to the configurations shown in FIGS. 4 and 5, the mechanical key 120 has a release knob 123 that can slide vertically with respect to the rotor 121, the release knob 123 is urged upward by a coil spring 124, and the release knob 123 is urged upward. The release knob 123 can rotate together with the rotor 121.

(Structure of peripheral wall portion 104 of upper case 101)
FIG. 7 is an external perspective view showing the back side of the upper case 101 according to the embodiment. FIG. 8 is a bottom view of the upper case 101 according to the embodiment. FIG. 9 is a sectional view taken along line BB of the upper case 101 shown in FIG.

As shown in FIGS. 7 to 9, on the back side (Z-axis negative side) of the upper case 101, a substantially cylindrical peripheral wall surrounding a circular opening 101A and projecting downward (Z-axis negative direction). Part 104 is formed.

As shown in FIGS. 7 and 8, the peripheral wall portion 104 is formed with a pair of engaging grooves 104C notched upward from the lower end portion. The pair of engaging grooves 104C has a width that allows the pair of vertical wall portions 123B of the release knob 123 to be fitted. As a result, as shown in FIGS. 7 and 8, the peripheral wall portion 104 has the first peripheral wall portion 104A extending along the peripheral edge portion of the opening 101A with the pair of engaging grooves 104C as a boundary. , The second peripheral wall portion 104B is point-symmetrically provided.

As shown in FIGS. 7 to 9, the lower surface 104Aa of the first peripheral wall portion 104A and the lower surface 104Ba of the second peripheral wall portion 104B are both in the clockwise direction (that is, mechanical key) in a plan view from above. It is an inclined surface whose height position gradually increases as it advances in the direction in which 120 opens).

(Rotation principle of release knob 123)
FIG. 10 is a partially enlarged perspective view of the back side of the upper case 101 according to the embodiment. In FIG. 10, the release knob 123 and the coil spring 124 are shown together with the upper case 101. As shown in FIG. 10, a pair of vertical walls of the release knob 123 are provided on the lower surface 104Aa of the first peripheral wall portion 104A and the lower surface 104Ba of the second peripheral wall portion 104B provided on the back side of the upper case 101. The upper surface of the portion 123B abuts. The pair of vertical wall portions 123B are urged upward (Z-axis positive direction) by the urging force from the coil spring 124 provided on the back side (Z-axis negative side) of the release knob 123 (arrow D1 in the figure). ). As a result, the pair of vertical wall portions 123B are pressed against the lower surfaces 104Aa and 104Ba. The lower surfaces 104Aa and 104Ba are both inclined surfaces extending along the peripheral edge of the opening 101A. Therefore, the pair of vertical wall portions 123B slide along the lower surfaces 104Aa and 104Ba (arrow D2 in the figure). As a result, the release knob 123 rotates clockwise (that is, in the direction in which the mechanical key 120 opens) in a plan view from above. In the present embodiment, the upper surfaces of the pair of vertical wall portions 123B are flat, but for example, the upper surfaces of the pair of vertical wall portions 123B may be curved surfaces. As a result, the contact area between the pair of vertical wall portions 123B and the lower surfaces 104Aa and 104Ba can be reduced, and the sliding resistance of the pair of vertical wall portions 123B can be reduced.

11 to 13 are diagrams for explaining the operation of the electronic key 10 according to the embodiment. FIG. 11 is a perspective sectional view showing a closed state of the electronic key 10. As shown in FIG. 11, in the closed state of the electronic key 10, the mechanical key 120 is in a state in which the key plate 122 is housed in the storage space 100A provided in the lower case 102. Further, in the closed state of the electronic key 10 shown in FIG. 11, the pair of vertical wall portions 123B of the release knob 123 form a pair of engaging grooves 104C formed in the peripheral wall portion 104 of the upper case 101 (FIGS. 7, 8 and 8). By engaging with (see FIG. 10), the rotation of the mechanical key 120 is locked.

Further, in the closed state of the electronic key 10 shown in FIG. 11, the key plate 122 housed in the housed space 100A is located in the outward direction (Y-axis positive direction) by the leaf spring 105 provided on the inner bottom surface of the housed space 100A. , In the direction of arrow D3 in the figure). As a result, the electronic key 10 according to the embodiment can suppress backlash in the rotating system of the mechanical key 120, and can suppress the generation of unpleasant sounds due to the backlash.

Further, the electronic key 10 according to one embodiment receives an impact applied to the intermediate case 103 (the inner bottom surface of the accommodation space 100A) via the mechanical key 120 even when the electronic key 10 is dropped. It can be absorbed by the leaf spring 105. Therefore, the electronic key 10 according to the embodiment can suppress damage to the intermediate case 103 and the electronic components held by the intermediate case 103 due to the dropping of the electronic key 10.

Further, in the electronic key 10 according to the embodiment, the leaf spring 105 is integrally formed with the intermediate case 103. As a result, in the electronic key 10 according to one embodiment, the leaf spring 105 can be easily installed in the accommodation space 100A without increasing the number of parts or the assembly work process.

FIG. 12 is a perspective sectional view showing a state immediately after the release knob 123 is pressed from the closed state of the electronic key 10. When the release knob 123 is pressed downward from the closed state, the electronic key 10 moves downward while the release knob 123 compresses the coil spring 124. Then, when the pair of vertical wall portions 123B of the release knob 123 come out downward (in the negative direction of the Z axis) from the pair of engaging grooves 104C formed in the peripheral wall portion 104 of the upper case 101, the pair of vertical wall portions 123B and the pair of vertical wall portions 123B The engagement with the pair of engaging grooves 104C is released, and the rotation lock of the mechanical key 120 is released.

As a result, as shown in FIG. 12, the mechanical key 120 is rotated in the opening direction by pushing the key plate 122 outward (arrow D4 in the figure) by the urging force from the leaf spring 105. (Arrow D5 in the figure). At the same time, as shown in FIG. 10, the pair of vertical wall portions 123B of the release knob 123 are provided on the back side of the upper case 101, the lower surface 104Aa of the first peripheral wall portion 104A, and the second peripheral wall portion 104B. Ride on the lower surface 104Ba of.

Subsequently, when the pressing of the release knob 123 by the user is released, the mechanical key 120 is subjected to an upward (Z-axis positive direction) urging force from the coil spring 124 as described with reference to FIG. A pair of vertical wall portions 123B of the release knob 123 slide on the lower surface 104Aa of the first peripheral wall portion 104A and the lower surface 104Ba of the second peripheral wall portion 104B provided on the back side of the upper case 101. , The release knob 123 is used as a rotation axis to further rotate in the opening direction.

FIG. 13 is a perspective sectional view showing an open state of the electronic key 10. When the mechanical key 120 is rotated 180 ° from the state where the key plate 122 is housed in the storage space 100A, a pair of vertical wall portions 123B of the release knob 123 are formed on the peripheral wall portion 104 of the upper case 101. By re-engaging with the engaging groove 104C (see FIGS. 7, 8 and 10), the rotation of the mechanical key 120 is stopped and the rotation of the mechanical key 120 is locked again. As a result, the electronic key 10 is in the open state shown in FIG. In the open state of the electronic key 10 shown in FIG. 13, the mechanical key 120 is in a state in which the key plate 122 protrudes forward (in the positive direction of the X-axis in the figure) from the front end surface of the case 100, that is, in an open state.

When the release knob 123 is pressed by the user from the open state shown in FIG. 13 and an urging force is applied by the user to the key plate 122 in the closing direction, the mechanical key 120 releases the electronic key 120. With 123 as the rotation axis, it rotates in the closing direction (counterclockwise in a plan view from above). Then, when the mechanical key 120 is rotated by 180 ° in the closing direction from the open state shown in FIG. 13, the key plate 122 is housed in the storage space 100A, that is, the mechanical key 120 is in the closed state shown in FIG.

As described above, the electronic key 10 according to the embodiment includes a case 100, a columnar portion 123A whose tip protrudes from the opening 101A of the case 100, and a vertical wall portion 123B (the present invention) that abuts on the back side of the case 100. A release knob 123 having a contact portion) and capable of being pressed by the columnar portion 123A, a mechanical key 120 provided so as to be rotatable and accommodating with respect to the case 100 with the release knob 123 as a rotation axis, and a release knob. The coil spring 124 that urges the 123 from the back side in the axial direction and the back side of the case 100 are provided so as to extend along the peripheral edge of the opening 101A, and the vertical wall portion 123B of the release knob 123 is pressed against the coil spring 124. It is provided with lower surfaces 104Aa and 104Ba (inclined surfaces) that rotate the release knob 123 together with the mechanical key 120 in the opening direction by sliding.

As a result, the electronic key 10 according to the embodiment can rotate the mechanical key 120 by the spring force of the coil spring 124 having a structure simpler than that of the torsion spring. Since the coil spring 124 does not have rotation stoppers at both ends, the cost is lower than that of the torsion spring. Further, since the coil spring 124 does not have rotation stoppers at both ends, it is not necessary to consider the direction of rotation when incorporating the coil spring 124 into the case 100, and thus the ease of assembly can be improved. Further, since the coil spring 124 does not have rotation stoppers at both ends, it is possible to suppress an increase in size in the radial direction, and thus it is possible to realize a miniaturization of the electronic key 10. Therefore, according to the electronic key 10 according to the embodiment, it is possible to suppress the occurrence of various problems such as an increase in the cost related to the structure for rotating the mechanical key 120 and a decrease in ease of assembly. ..

The electronic key 10 according to the embodiment uses the upward urging force from the coil spring 124 to press the vertical wall portion 123B of the release knob 123 against the lower surfaces 104Aa and 104Ba (inclined surfaces). Since the rotational force of the mechanical key 120 is generated, the rotational speed of the mechanical key 120 can be made slower than that of the configuration in which the mechanical key is rotated by the torsion spring. As a result, the electronic key 10 according to the embodiment can suppress the impact and the contact noise of the rotor 121 on the case 100 when the mechanical key 120 is opened, for example.

Further, the electronic key 10 according to one embodiment adjusts the rotation speed of the mechanical key 120 by adjusting the inclination angles of the lower surfaces 104Aa and 104Ba (inclined surfaces) without changing the spring force of the coil spring 124. be able to.

Further, in the electronic key 10 according to one embodiment, the rotation speed of the mechanical key 120 can be adjusted by gradually changing the inclination angle of the lower surfaces 104Aa and 104Ba (inclined surfaces). For example, the rotation speed of the mechanical key 120 may be partially relaxed by loosening the inclination angle of the lower surfaces 104Aa and 104Ba immediately before the mechanical key 120 is opened. Thereby, the electronic key 10 according to the embodiment can further suppress the impact and the contact noise of the rotor 121 on the case 100 when the mechanical key 120 is opened, for example.

Although one embodiment of the present invention has been described in detail above, the present invention is not limited to these embodiments, and various modifications or modifications are made within the scope of the gist of the present invention described in the claims. It can be changed.

10 Electronic key (portable key device)
100 case 100A storage space 100B storage space 101 upper case 101A opening 102 lower case 103 intermediate case 104 peripheral wall 104A first peripheral wall 104Aa lower surface (inclined surface)
104B Second peripheral wall 104Ba Lower surface (inclined surface)
104C Engagement groove 105 Leaf spring 120 Mechanical key 121 Rotor 122 Key plate 123 Release knob 123A Column part 123B Vertical wall part (contact part)
123C Protrusion 123D Internal space 124 Coil spring 125 Spring holder AX Rotation center axis

Claims (4)

With the case
A release knob having a columnar portion whose tip protrudes from the opening of the case and a contact portion that abuts on the back side of the case, and which can be pressed by the columnar portion.
A mechanical key provided so as to be rotatable and accommodating with respect to the case with the release knob as a rotation axis.
A coil spring that urges the release knob from the back side in the axial direction,
On the back side of the case, the release knob is opened along with the mechanical key by being provided so as to extend along the peripheral edge of the opening and the abutting portion of the release knob is pressed against and slides. A portable key device characterized by having an inclined surface that rotates in a direction. The portable according to claim 1, further comprising a leaf spring for urging the mechanical key housed in the case in the accommodation space in which the mechanical key is housed in a direction of opening the mechanical key. Type key device. The portable key device according to claim 2, wherein the leaf spring is integrally formed with the case. On the back side of the case, an engaging groove formed on the path of the inclined surface is further provided.
The rotation of the release knob and the mechanical key is locked by engaging the contact portion with the engaging groove in each of the open state and the closed state of the mechanical key. The portable key device according to any one of claims 1 to 3.

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