JPH07251685A - Removable electronic equipment - Google Patents

Abstract

PURPOSE:To prevent easily unlocking of an equipment main unit from a fixed part due to vibration or the like, in an electronic equipment wherein the equipment main unit is made removable relating to the fixed part. CONSTITUTION:When an equipment main unit 10 is inserted to a fixed part 20, a lock pawl 33b of a lock member 33, energized by a spring 36, is stopped to a hook protrusive part 20a, to lock the equipment main unit 10. When a handle 31 is turned to the front, an arm 42 and a link plate 43 are moved in a rightward direction, but by sliding slots 42a, 43a with connecting pins 44, 45, even when turned to a position as shown in the drawing, the lock member 33 is not moved. When the handle 31 is turned further to the front from this position, the lock member 33 is actuated to unlock the pawl from the hook protrusive part 20a. Since the lock member 33 is not actuated until the handle 31 is moved to the position in the drawing, unprepared unlocking due to vibration or the like is eliminated.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a detachable electronic device such as an in-vehicle audio device or other in-vehicle electronic device in which the device body can be detached from a fixed portion for the purpose of preventing theft. In particular, the present invention relates to a detachable electronic device that prevents the lock between the fixing part and the device body from being accidentally released due to vibration when the device body is attached to the fixing part.

[0002]

2. Description of the Related Art FIG. 7 is a partial side view of a conventional vehicle-mounted audio device which is an example of a detachable electronic device. Reference numeral 1 denotes a frame-shaped fixed portion, which is embedded in a console panel inside the automobile. The device body 2 includes a housing 3 and a nose portion 4 fixed to the front of the housing 3. The front of the nose portion 4 is equipped with operation buttons and a liquid crystal panel. A support shaft 5b is provided on both left and right side surfaces of the nose portion 4, and the handle 5 is rotatably supported by the support shaft 5b. The handle 5 is housed in a position along the lower surface from both side surfaces of the nose portion 4 in a state of a solid line, and can be rotated to a position extending forward of the nose portion 4 as shown by a chain line. A lock arm 6 is rotatably attached to the handle 5 by a pin 7. A guide pin 8 is fixed to the side surface of the housing 3, and a guide groove 6b formed in the lock arm 6 is formed.
Slides on the guide pin 8 so that the lock arm 6 can move as the handle 5 rotates. A lock protrusion 6 a is formed at the tip of the lock arm 6, and a lock hole 1 a is formed in the fixed portion 1.

When the device main body 2 is inserted into the fixed portion 1 and the handle 5 is tilted to the position shown by the solid line, the lock projection 6a at the tip of the lock arm 6 and the lock hole 1a of the fixed portion 1 are fitted in a concavo-convex manner. The device body 2 is locked so as not to come out of the fixed portion 1. Also, on the upper front part of the nose part 4, a handle 5
A push button 9 for projecting is provided. When the push button 9 is pressed while the handle 5 is in the solid line state, the biasing plate 9a inside the nose portion 4 rotates counterclockwise, and the handle 5 in the solid line position slightly moves counterclockwise. The handle 5 projects to a position where it can be easily gripped by hand.
When the handle 5 is rotated counterclockwise, the lock protrusion 6a comes out of the lock hole 1a, and the lock of the device body 2 in the fixed portion 1 is released. When the handle 5 is further rotated to the position shown by the chain line in FIG. 7 and pulled out in the direction A, the device body 2 is pulled out from the fixed portion 1.
By pulling out the device body 2 from the fixed portion 1 and bringing it back to the home or the like, it is possible to prevent the device body 2 from being stolen or damaged during parking or the like.

[0004]

In the conventional detachable vehicle-mounted audio equipment of FIG. 7, when the handle 5 is rotated to the position indicated by the solid line, the lock projection 6a and the lock hole 1a are fitted together. However, when the handle 5 is rotated slightly counterclockwise from the position indicated by the solid line, the lock protrusion 6a is locked by the lock hole 1a
After coming out of the device, the lock between the device body 2 and the fixed portion 1 is easily disengaged. Therefore, for example, when the device body 2 is inserted into the fixed portion 1 and the handle 5 is not reliably rotated to the solid line state, the inserted device body 2 is inserted.
Will not be locked to the fixed part 1. Even if the handle 5 is surely rotated to the solid line state, the handle 5 may naturally rotate counterclockwise due to vibration of the vehicle body or the like thereafter, and the lock protrusion 6a may slip out of the lock hole 1a.

In such a case, the fixing of the device body 2 to the fixing portion 1 becomes unstable. In this type of on-vehicle audio equipment, a connector is provided on the inner surface of the housing 3 of the device body 2, and a connector is also provided in the back of the fixed part 1 so that the device body 2 is inserted into the fixed part 1. At this point, both connectors are fitted so that power is supplied to the device body 2 and acoustic signals are sent to the speaker. Therefore, if the lock protrusion 6a slips out of the lock hole 1a and the lock is incomplete while the device body 2 is inserted into the fixed portion 1 as described above, the device body 2 moves due to vehicle body vibration or the like. However, there is a problem that the connector connection is defective.

The present invention solves the above-mentioned conventional problems, and provides a removable electronic device in which the lock between the device main body and the fixed portion is not easily disengaged even if the handle is rotated due to vibration or the like. Is intended.

[0007]

According to the present invention, in a removable electronic device in which a device body is removably attached to a fixed portion, a first position extending in the take-out direction and a first position of the device body are provided. A handle that rotates between a second position that is tilted with respect to the lock member, a lock member that is locked in the fixed portion, and a biasing member that biases the lock member in the locking direction are provided. Between the handle and the lock member, when the handle rotates from the second position to the first position by a predetermined angle, the lock member is not moved, and is locked when the handle rotates by a predetermined angle or more. It is characterized in that the member is provided with a connecting portion for giving a moving force in the hook releasing direction.

In the above-mentioned connecting portion, for example, the handle and the lock member are connected by a link plate (intermediate member), and the handle, the link plate and the lock member are connected by an elongated hole and a connecting pin (connecting shaft). It can be configured by Alternatively,
The connecting portion is configured by directly connecting the handle and the lock member with the elongated hole and the connecting pin. Alternatively, the connecting portion is composed of a concave-convex fitting portion capable of transmitting a moving force to the lock member when the handle is rotated by a predetermined angle in the first position direction. The uneven fitting portion is, for example, an uneven fitting portion such as a hook and a shaft or a protrusion. The hook and the shaft or the protrusion are provided between the handle and the lock member, or between the handle and the link plate (intermediate member), and / or between the link plate and the lock member.

[0009]

In the above means, the lock member is hooked in the fixing portion in a state where the equipment body is inserted into the fixing portion, and the equipment body and the fixing portion are locked. When the device body is taken out, the handle is rotated from the second position to the first position direction. At this time, the turning force of the handle is not transmitted to the lock member from the second position to a predetermined angle. The lock member is not driven in the unlocking direction. If the handle is rotated to a predetermined angle and then further rotated to the first position,
The turning force of the handle is transmitted to the lock member via the connecting portion, and the lock member is driven in a direction in which it is disengaged from the fixed portion, whereby the device body can be detached from the fixed portion.

As described above, the lock member does not operate while the handle is rotated from the second position to the first position direction by a predetermined angle, and the lock member is biased by the biasing member in the latching direction with the fixed portion. It has been moved. Therefore, even when the handle is not surely rotated to the second position when the device body is mounted on the fixed portion, the handle at the second position may rotate freely due to vibration or the like. Even if something happens, the lock between the device body and the fixed part will not accidentally come off. However, when the device body is taken out from the fixed part, if the handle is rotated to the first position, the lock member is moved in the unlocking direction with the fixed part and the fixed part and the device body are locked. Comes off.

[0011]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a perspective view showing a detachable vehicle-mounted audio device as an example of the detachable electronic device according to the present invention, and FIGS. 2 to 4 are partial side views for each operation. Reference numeral 20 is a fixed part. The fixing portion 20 is made of metal and has a frame shape or
It has a box shape. The fixing portion 20 is embedded and fixed in the console panel of the automobile. The device body 10 of the on-vehicle audio device can be inserted into and taken out of the fixing portion 20. In the device body 10, a nose portion 12 which is a decorative portion made of resin is attached to the front of a chassis 11 made of metal or the like, and an operation member 13 is detachably provided in a recess 12a on the front surface of the nose portion 12. . In this embodiment, the device main body 10 is one in which the chassis 11 and the nose portion 12 are integrated. Alternatively, the chassis 11 and the nose portion 12 are integrated and the operation member 13
The device main body 10 is in a state in which is attached. In this embodiment, the operation member 13 will be described as an example which is detachable from the nose portion 12, but the operation member 13 integrally fixed to the nose portion 12 may be the device body 10.

Inside the recess 12a of the nose portion 12, there is integrally formed a rectangular tube-shaped insertion frame 12c protruding forward from the bottom surface 12e of the recess, and a cassette tape insertion passage 12d is formed in this insertion frame 12c. ing. The front surface of the operation member 13 is an operation surface 13a, and various operation button groups 14 and 15 are arranged on the operation surface 13a. Operation surface 1
A display device 16 such as a liquid crystal panel is installed at 3a. The operation member 13 is formed with an insertion opening 13b penetrating the front and back surfaces, and the operation member 13 is formed in the recess 1 of the nose portion 12.
When mounted in 2a, the inner surface of the insertion opening 13b and the inner surface of the insertion passage 12d are continuous with each other. The cassette tape is inserted from the insertion opening 13b opened in the operation member 13,
It is loaded into the cassette tape drive mechanism in the chassis 11 through the insertion passage 12d of the nose portion 12.

A pin connector 18 is provided on the bottom surface 12e of the concave portion of the nose portion 12. When the operating member 13 is mounted in the concave portion 12a of the nose portion 12, the pin connector 18 is provided inside the operating member 13 via the pin connector 18. Operated button group 14, 1
The switch element and the like operated by 5 and the internal circuit of the chassis 11 are electrically connected. The right side portion of the nose portion 12 in the drawing and the right side surface 13c of the operating member 13
The and 17 are provided with hooking portions 17 that are fitted to each other by projections and depressions. The hooking portion 17 includes a pair of hooking protrusions 17 a, 17 a protruding from the nose portion 12, and the right side surface 1 of the operating member 13.
It is composed of a pair of locking recesses 17b, 17b formed in 3c. Latching projections 17a, 17a and latching recess 1
The operating member 1 is formed by fitting the concave and convex portions with 7b and 17b.
The right side portion of the drawing 3 is hooked on the nose portion 12.

A lock mechanism 19 is provided on the left side portion of the recess bottom surface 12e of the nose portion 12 in the figure. Operation member 1
3 is hooked on the nose part 12 by the hooking part 17 and
When the lock mechanism 19 is pushed so as to rotate in the direction, the lock mechanism 19 is locked by the lock locking portion 13d on the back surface of the operation member 13, and the operation member 13 is attached to the nose portion 12.
A lock release button 13e for releasing the lock by the lock mechanism 19 is provided on the operation surface 13a of the operation member 13.
Is provided. The handle shaft 31 is attached to the both side surfaces 12f, 12f of the nose portion 12 of the device body 10 by the support shaft 32.
Is rotatably attached. The handle 31 is formed in a U shape by using a resin material or a metal material. The handle 31 is substantially perpendicular to the front of the nose portion 12 and extends in the take-out direction A of the device body 10 (first position ((a) in FIG. 4) and second position ((b) in FIG. 2). It is possible to rotate between and. As shown in FIG. 1, the handle 31 that has been rotated to the second position has the device main body 10
Is housed in such a manner that it surrounds the left and right side surfaces 12f, 12f and the lower surface 12g of the peripheral frame of the nose portion 12 around the tip of Alternatively, the handle 31 rotated to the second position
However, it may be accommodated in a state of being along the front portion of the device body 10, that is, the front surface of the nose portion 12.

As shown in FIG. 2, a lock member 33 is provided on the side surface of the chassis 11 of the device body 10. The lock member 33 is supported on the side surface of the chassis 11 by a shaft 34, and an arcuate elongated hole 33a formed in the lock member 33 slides on a guide shaft 35 fixed to the chassis 11. Accordingly, the lock member 33 is rotatable about the shaft 34 in the (d)-(e) direction within the length range of the elongated hole 33a. A torsion spring 36 is attached to the shaft 34 as a biasing member or a spring member, one arm 36a of which is inserted into the spring retaining hole 33c of the lock member 33, and the other arm 36b of which is a protrusion 1 on the side surface of the chassis 11.
The lock member 33 is urged in the direction 1a by the elastic force of the torsion spring 36. Further, the state in which the lower end of the elongated hole 33a shown in the drawing contacts the guide shaft 35 is the limit of rotation of the lock member 33 in the (d) direction. The tip of the lock member 33 has the lock claw 3
3b, and the rear side edge of the lock claw 33b with respect to the fixed portion 20 is an inclined portion 33d. On the other hand, a hooking protrusion 20a is provided on the inner surface of the side plate of the fixed portion 20. The hooking projection 20a is formed by bulging by cutting and raising a part of the side plate of the fixing portion 20 which is a metal plate inward. Further, the lower part on the right side of the hooking protrusion 20a is the inclined portion 20.
It is b.

As shown in FIG. 2, when the device body 10 is inserted into the fixed portion 20 and the lock member 33 is rotated in the (d) direction, the lock claw 33b and the locking projection 20a come into contact with each other. Movement of the device body 10 in the take-out direction (direction A) is prevented. The handle 31 has an arm 4 by a connecting shaft 41.
2 is rotatably supported. As shown in FIG. 4, a guide step 12h for guiding the movement of the arm 42 when the handle 31 rotates is formed on the side surface 12f of the nose portion 12. A link plate 43 is provided as an intermediate member between the arm 42 and the lock member 33. The connecting pin 44 fixed to the link plate 43 is inserted into an elongated hole 42 a formed in the arm 42. Further, a long hole 43a is formed in the link plate 43, and the connecting pin 45 fixed to the lock member 33 is inserted into the long hole 43a.

In this embodiment, the slot 42a and the connecting pin 4 are
4, and the long hole 43a and the connecting pin 45, the handle 3
A connecting portion for transmitting the moving force of 1 to the lock member 33 is configured. Alternatively, the long hole 42a and the connecting pin 44,
And the long hole 43a, the connecting pin 45, and the link plate 43.
And constitute a power transmission unit that transmits the turning force of the handle 31 to the lock member 33. As shown in FIGS. 1 and 2, a push button 51 is provided on the left front surface of the peripheral frame of the nose portion 12.
Is projected. As shown in FIG. 2, the push button 51 is supported so as to be able to recede linearly in the C direction with respect to the nose portion 12. A pin 52 is fixed to the push button 51, and the pin 52 is inserted into the elongated hole 53b of the urging plate 53.
The urging plate 53 includes a support shaft 32 that supports the handle 31.
The urging piece 53a at the lower end faces the edge of the handle 31 on the fixed portion 20 side. The push button 51 is urged to protrude in the direction A by a spring 54.

Next, the operation of the removable vehicle-mounted audio equipment will be described. As shown in FIG. 4, when the handle 31 is rotated toward the first position, that is, in the take-out direction (direction A) of the device body 10, the arm 42 is pulled by the connecting shaft 41 to the right in the drawing. It moves and the connecting pin 44 and the link plate 43 are pulled in the same direction by the long hole 42a. Furthermore, by connecting the long hole 43a and the connecting pin 45,
The lock member 33 is rotated in the (e) direction against the elastic force of the torsion spring 36. In this state, when the chassis 11 of the device body 10 is inserted into the fixed portion 20 in the C direction, the lock claw 3 of the lock member 33 is inserted.
3b moves to the inside of the fixed portion 20 without hitting the hooking protrusion 20a. After the chassis 11 is completely inserted into the fixing portion 20, when the handle 31 is slightly rotated from the first position shown in FIG. 4A to the second position, the lock member 33 is released. The torsion spring 36 rotates in the (d) direction, the lock claw 33b is locked by the locking projection 20a of the fixed part 20, and the device body 10 is locked so as not to slip out in the A direction.

When the device body 10 is inserted into the fixed portion 20, the handle 31 is rotated not to the first position shown in FIG. 4A but to the position shown in FIG. 3F. Then, the lock member 33 is rotated in the (d) direction by the urging force of the torsion spring 36. When the chassis 11 is inserted into the fixed portion 20 in this state, the inclined portion 33d at the rear end of the lock claw 33b of the lock member 33 comes into contact with the inclined portion 20b at the lower right end of the hooking protrusion 20a. When the chassis 11 is further pushed in the C direction, the lock members 33 are once rotated in the (e) direction due to the contact between the inclined portions, and when the lock claws 33b pass over the hooking protrusions 20a, the lock members 33 are released. Returns in the (d) direction, and the lock claw 33b and the latching projection 20a come into contact with each other, and the device body 10
Are locked to the fixed portion 20. In the locked state of FIG. 2, the lock member 33 has a torsion spring 36.
Thus, the urging force (elastic force) in the (d) direction is always applied. The reaction force of the urging force in this (d) direction is the device body 1
0 acts in the direction of C, and the device body 10 is firmly held by the fixed portion 20.

Next, when the device body 10 is taken out from the fixed portion 20, the push button 51 shown in FIG. 2 is first pushed. When the push button 51 is pressed, the urging plate 53 rotates counterclockwise, and the urging piece 53a at the lower end of the urging plate 53 pushes the edge of the handle 31 on the rear side of the fixed portion in the direction A, so that the handle 31 moves to Rotate to the position shown in (c). When the push button 51 is pressed, the handle 31 is rotated to a position where it can be easily gripped by hand. When you release the push button 51,
The elastic force of the spring 54 returns the push button 51 to the protruding state. When the handle 31 is rotated in the direction A from the position (c), the elongated hole 42a and the connecting pin 44 slide until the handle 31 is rotated to a position near the position (e) in FIG. Also, the elongated hole 43a and the connecting pin 45 slide, and the turning force of the handle 31 is not transmitted to the lock member 33.
When the handle 31 is rotated from the (f) position to the first position shown in (a) in FIG. 4, the connecting pins 44 and 45 are hooked at the ends of the long holes 42a and 43a, and the handle 31 of the handle 31 moves. Rotational force is transmitted to the lock member 33, and as shown in FIG. 4, the lock claw 33b of the lock member 33 causes the locking projection 20a to move.
And the lock is released. When the handle body 31 rotated to the first position shown in (a) is held by hand and the device body 10 is pulled out in the direction A, the chassis 11 is fixed to the fixing portion 2.
Taken from 0.

As described above, when the handle 31 is rotated from the position (b) to the vicinity (f), the lock member 33 remains rotated in the direction (d), and the device body 10 is fixed to the fixing portion 20. The lock does not come off when it is attached to the. Therefore, even when the handle 31 in the second position (B) moves due to vehicle body vibration or the like, or even when the handle 31 is not completely stored in the position (B), the device body 10 and the fixed portion 20 are fixed. And remain locked, and the device body 10 does not move due to vibration or the like. Moreover, when the handle 31 is completely rotated in the take-out direction (direction A), the lock by the lock member 33 is released, so that the device body 10 can be reliably taken out from the fixed portion 20.

5 and 6 show another embodiment. In the embodiment shown in FIGS. 2 to 4, a link plate 43 is provided between the arm 42 and the lock member 33, and the handle 31 and the lock are locked by the elongated hole 42a and the connecting pin 44 and the elongated hole 43a and the connecting pin 45. A connecting portion with the member 33 is formed. On the other hand, in FIG. 5, the connecting pin 45 provided in the lock member 33 is inserted into the long hole 42a of the arm 42 connected to the handle 31, and the long hole 42a and the connecting pin 45 connect the connecting portion. Is configured. In addition, FIG.
Then, the hook 42b is formed at the tip of the arm 42, and when the handle 31 rotates counterclockwise by a predetermined angle, the hook 42b is hooked on the connecting pin 45 and the lock member 33 is pulled counterclockwise. In FIG. 6, the connecting portion is constituted by the concave-convex fitting portion formed by the hook 42b and the connecting pin 45 with a gap.

Also in the embodiment shown in FIGS. 5 and 6, the second
The lock member 33 is not driven and the lock is not released until the handle 31 in the position is rotated by a predetermined angle, and when the handle 31 is completely rotated to the first position, the lock member is driven to operate the device. The lock of the main body 10 will be released. Further, in each of the above-mentioned embodiments, the arm 42 has the connecting shaft 4
1 is connected to the handle 31 by an arm 42
May be fixed to the handle 31, or the arm 42 may be integrated with the handle 31, and the handle 31 may be directly provided with an elongated hole, a hook, a connecting pin, or the like.

As described above, between the handle and the lock member, when the handle rotates from the second position toward the first position by a predetermined angle, the locking member is not given a moving force and is rotated by a predetermined angle or more. When the lock member is engaged, a concave-convex fitting portion or a hook portion is provided at an interval for giving a moving force in the hook releasing direction, and this serves as a connecting portion for giving the lock member a moving force of the handle. A link plate (intermediate member) as shown in FIG.
43 may be provided, or the intermediate member may not be provided.
However, in the embodiment shown in FIG. 2, since the link plate 43 is provided and the connecting portion between the elongated hole and the connecting pin is provided at two places, the distance between the nose portion 12 and the lock member 33 is short, and the arm in FIG. The size of 42 protruding to the left in the drawing is reduced, and the mechanism is downsized. In addition, since the sliding connection portion of the elongated hole and the connection pin is provided at two locations, the angle from the second position of the handle 31 to the rotation position (position (f)) where the lock member can operate becomes large. ing. In addition, the removable electronic device of the present invention is a vehicle-mounted audio device,
It can be applied to an audio device mounted on a ship or a device for a navigation system other than the audio device.

As described above, according to the present invention, even when the handle is moved from the second position with the device body attached to the fixed portion, the lock member and the fixed portion are not disengaged from each other. , The lock between the main unit and the fixed part does not come off. Therefore, when the handle moves due to body vibration,
The lock between the device body and the fixed part will not be unlocked, and the device body will not become unstable. Further, when the handle is rotated to the first position, the lock between the device main body and the fixing portion is released, so that the device main body can be taken out from the fixing portion.

[Brief description of drawings]

FIG. 1 is a perspective view showing a detachable vehicle-mounted audio device as one embodiment of the present invention,

FIG. 2 is a partial side view showing a state where the handle is in the second position in the vehicle-mounted audio device shown in FIG.

FIG. 3 is a partial side view showing a state in which the handle is rotated to a predetermined angle and the lock is not released;

FIG. 4 is a partial side view showing a state in which the handle is rotated to the first position and the lock is released;

FIG. 5 is a partial side view showing a connecting portion between the handle and the lock member when the link plate (intermediate member) is omitted.

FIG. 6 is a partial side view showing a case where a hook and a connecting pin form a connecting portion;

FIG. 7 is a partial side view of a conventional detachable vehicle-mounted audio device;

[Explanation of symbols]

 10 Equipment Main Body 11 Chassis 12 Nose 13 Operation Member 20 Fixed Part 20a Latching Protrusion 31 Handle 32 Support Shaft 33 Lock Member 33b Lock Claw 36 Torsion Spring 41 Connection Shaft 42 Arm 42a Long Hole 43 Link Plate 43a Long Hole 44, 45 Connecting pin

Claims (1)

[Claims] 1. A detachable electronic device in which a device body is detachably attached to a fixed portion, wherein the device body has a first position extending in the take-out direction and a first position that is tilted with respect to the first position. The handle and the lock member are provided with a handle that rotates between the position 2 and the lock member, a lock member that is locked in the fixed portion, and a biasing member that biases the lock member in the locking direction. In between, when the handle is rotated from the second position to the first position direction by a predetermined angle, the lock member is not applied with a moving force, and when the handle is rotated by a predetermined angle or more, the lock member is moved in the unlocking direction. An attachable / detachable electronic device, characterized in that a connecting portion for giving a moving force is provided.