JP3277495B2 - Detachable lever device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[Table of Contents] The present invention will be described in the following order. Industrial application Conventional technology (FIGS. 7 and 8) Problems to be solved by the invention (FIGS. 7 and 8) Means for solving the problem (FIG. 1) Function (FIG. 1) Example (FIG. 1) -Fig. 6) Effects of the Invention

[0002]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a detachable lever device,
For example, it is suitable for application to a vehicle acoustic device stored in an instrument panel of a vehicle body.

[0003]

2. Description of the Related Art For example, an audio tape player, a CD player,
An audio device such as a radio reception tuner is stored, and its operation unit is exposed.

Here, in this vehicle acoustic device, since the device main body and the operation unit are integrated, when the driver leaves the vehicle, the device main body integrated with the operation unit is stolen together with the device. There was a fear.

Therefore, conventionally, an acoustic device mounted on a vehicle interior panel is divided into an apparatus main body and an operation section, and the operation section is detachably attached to the apparatus main body, so that a vehicle driver can use the acoustic apparatus when leaving the vehicle. Since the operation unit removed from the main unit can be stored and hidden in a storage box or the like in the vehicle compartment, or the operation unit can be carried around, there is a device that does not function without the operation unit so that the device main body side is not stolen. .

[0007] As shown in FIGS. 7 and 8, the main unit and the operation unit are configured such that the operation unit 2 is detachably attached to the front surface of the main unit 1. A hook 4 and a lever device 5 are provided on the front surface of the apparatus main body 1 in addition to the connection terminal 3.
The main body 1 is engaged with the
The operation unit 2 and the operation unit 2 are integrated to constitute the entire acoustic device.

Here, as shown in FIG. 8, when the operation unit 2 integrated with the apparatus main body 1 is detached from the apparatus main body 1, the eject button 9 disposed on the front of the operation unit 2 is pressed with a finger. Thereby, the lock of the compression coil spring 5A incorporated in the rear portion of the lever device 5 is released, and the claw portion 5B having an L-shaped cross section, which constitutes the distal end portion of the lever device 5, protrudes forward. In the state held by 5B, the hook 4 and the concave portion 7 rotate about the rotation center to be in a half-open state.

Here, as shown in FIGS. 7 and 8, a helical spring 5D is wound around the mounting shaft 5C between the lever device main body and the claw portion 5B. The operating portion 2 is urged in the direction, and always holds the operating portion 2 with a constant holding force while engaging with the engaging portion 8. Further, by pulling the operating portion 2 forward from the above half-open state with a force of a certain value or more, the engaging portion 8 formed on the back surface of the operating portion 2 and the claw portion 5B are separated from each other, and the operating portion 2 is separated from the apparatus main body 1. It can be removed.

[0009]

However, as described above, the lever device 5 is formed by two independent springs, the spring 5A for projecting the operating section 2 from the apparatus main body 1 and the spring 5D for holding the operating section 2 on the apparatus main body 1. , It is possible to independently set each operation of projecting and holding the operation unit 2, but the holding force for holding the operation unit 2 in the apparatus main body 1 is always constant, and the device of the operation unit 2 When the holding force on the main body 1 is to be increased, the force required to remove the operation unit 2 from the apparatus main body 1 from the half-open state shown in FIG. If the operation unit 2 is to be operated with a weak force, the holding force of the operation unit 2 when the apparatus main body is attached is also weakened. Therefore, the operation of securely holding the operation unit 2 on the apparatus main body 1 and the smooth operation of the operation unit 2 from the apparatus main body 1 Compatible with removing operation Has failed can be.

The present invention has been made in consideration of the above points, and when the operation unit is mounted on the apparatus main body, the operation unit can be securely held with a strong holding force and can be operated from the apparatus main body. An object of the present invention is to propose a detachable lever device which can be smoothly removed with a weak force when removing a part.

[0011]

According to the present invention, there is provided a detachable lever device 20 capable of detachably attaching the operation section 12 to the apparatus main body 13.
When pressed against the operation unit 12, the operation unit 12
29 for holding the device in the apparatus main body 13 and the lever 2
9, a cam groove 36 for guiding the movement of the cam 30, and a cam 30 opened to the lever 29 when the cam 30 is bent relative to the lever 29. When the operating unit 12 is mounted on the apparatus main body 13, the cam 30 is moved to the first sliding position of the cam groove 36, and the lever 29 is moved with respect to the cam 30. The lever 30 is pressed against the operation unit 12 by the first biasing force of the elastic member 32 by bending, and the operation unit 12 is held on the apparatus main body 13. By moving the groove 29 from the first sliding position to the second sliding position and opening the lever 29 with respect to the cam 30 with the first urging force, the elastic member 32 is weaker than the first urging force. Second The operation unit 12 and the lever 29 in force
To hold the operation unit 12 on the apparatus main body 13.

[0012]

Therefore, when the operating section 12 is mounted on the apparatus main body 13, the holding force of the lever 29 on the operating section 12 is increased by the relatively strong first urging force of the elastic member 32, and the apparatus is operated. When the operation unit 12 is detached from the main body 13, the holding force of the lever 29 on the operation unit 12 can be weakened by the second urging force that is weaker than the first urging force of the elastic member 32, whereby the apparatus main body 13 is removed. The operation unit 12 can be securely fixed to the apparatus main body 13 and can be attached thereto, and the operation unit 12 can be smoothly removed from the apparatus main body 13.

[0013]

BRIEF DESCRIPTION OF THE DRAWINGS FIG.

In FIG. 2, a vehicle acoustic device 11 is stored in an instrument panel 10 in a vehicle interior with an operation unit 12 (FIG. 3) exposed. As shown in FIG. 3, the vehicle acoustic device 11 includes an operation unit 12 and a device main body 13.
On the front of the operation unit 12, various operation buttons 12A for a tuner and a CD control commander are arranged, and an eject button 14 is provided. When the eject button 14 is pressed, the operation unit 12 is pressed. Can be removed from the apparatus main body 13.

In FIG. 4 showing a state in which the operation unit 12 is removed from the apparatus main body 13, a front surface of the apparatus main body 13 has a frame 13 formed so that a peripheral edge thereof projects slightly forward.
A, whereby the back of the operation unit 12 is
3A.

On the right side of the frame 13A, hooks 15A and 15B are formed so as to protrude leftward, while on the right side of the operation unit 12, a hook having a shape to be fitted to the hooks 15A and 15B is formed. Joint recesses 16A and 16B are formed. A plurality of connection terminal pins 17 are provided on the front surface of the apparatus main body 13 near the hooks 15A and 15B, and a plurality of connection terminal plates 18 are provided on the back surface of the operation unit 12 opposed thereto. The connection terminal pin 17 and the connection terminal plate 18 come into contact with each other when the device 12 is mounted on the apparatus main body 13, so that control commands of the operation section 12 can be transmitted to the apparatus main body 13.

In addition to the above configuration, a lever device 20 is provided at the left end of the front surface of the apparatus main body 13 so as to be able to protrude and retract from the inside of the apparatus main body toward the front of the apparatus main body through an opening 19 cut out in a square shape. I have. The lever device 20
A notch 21 is provided at the left end of the back surface of the operation unit 12 opposite to the notch 21, and the notch 21 is cut out so that a locking claw 22 formed at the distal end of the lever device 20 can be fitted into and removed from the notch 21. .

Here, when attaching the operating section 12 to the apparatus main body 13, first, the engaging recesses 1 are inserted into the hooks 15A and 15B.
6A and 16B are fitted, and the left side of the operation unit 12 is gradually superimposed on the left side of the apparatus main body 13 around the rotation center. At this time, the lever device 20 is pushed into the inside of the device main body 13 while the back surface of the operation unit 12 abuts against the locking claw 22 of the lever device 20, and when the entire back surface of the operation unit 12 weighs the front surface of the device body 13, the notch 21 is locked. 2
2 are fitted so that the operation unit 12 can be held by the apparatus main body 13.

When the operation unit 12 is detached from the apparatus main body 13, the rod-shaped member 23 projects toward the apparatus main body 13 from the back of the operation unit 12 by pressing an eject button 14 provided on the front of the operation unit 12. By rotating the rod member 23 inside the apparatus main body 13 while pressing the eject member 24 exposed on the front surface of the apparatus main body 13,
As shown in FIG. 5, the lever device 20 obtains a half-open state in which the lever device 20 projects forward while holding the operation unit 12.

Further, from this half-open state, the notch 21 and the locking claw 22 are separated from each other by pulling the operating part 12 in a forward direction indicated by an arrow A in FIG. 13 so that it can be removed. Here, as shown in FIG. 1, the lever device 20 has an opening 19 provided on the front surface of the device main body 13 (FIG. 4).
The main body 1 has a peripheral portion 25 which is one size larger than
A base 26 fixed to the position of the opening 19 from the inside of the base 3;
The protruding portion 27 is rotatable so as to be able to come and go through the opening 29.

The protrusion 27 is provided on the same rotating shaft 28 as the lever 2.
9, a cam 30 and a link 31 are rotatably mounted. A helical spring 32 is wound around the rotating shaft 28, one end of which is received by the lever 29 and the other end of which is received by the cam 30, whereby the angle between the front surface of the lever 29 and the front surface of the cam 30 in FIG. θ
As the value becomes smaller, the helical spring 32 is entrained, and the lever 29 and the cam 30 are urged in a direction to increase the angle θ by the elastic force of the helical spring 32.

Here, the base 26 and the projection 27 are
The entire protruding portion 27 is inserted into the inside of the peripheral edge portion 25 of the main body to form an integral structure. That is, the engagement holes 34A, 34B (not shown) provided at the left and right positions of the link 31 are in contact with the inside of the engagement holes 33A and 33B provided at the left and right positions behind the peripheral portion 25 of the base 26. Then, the engaging pin 35 is inserted into the engaging holes 33A, 34A, 34B, 33B, and the cam-shaped cam groove 36 formed in the front left wall inside the base 26 is leftward at the left end position of the cam 30. The projection 27 is supported by the base 26 by slidingly contacting a cam pin 37 projecting from the base.

As a result, the protruding portion 27 becomes rotatable about the engaging pin 35 as the center of rotation, and the cam 30 is rotated by the cam pin 37 sliding along the cam groove 36 in conjunction with this. It turns around 28 as a turning center. Here, the cam groove 36 is rotated by the protrusion 27 to the lower position around the engagement pin 35 (the protrusion 2
As the cam pin 37 slides to a position below the cam groove 36, the angle θ formed by the lever 29 and the cam 30 becomes smaller. It is molded so as to have a simple shape.

As a result, as the protruding portion 27 rotates to the position stored inside the base portion 26, the lever 29 and the cam 30 are urged in a direction in which the angle θ is increased by the elastic force of the helical spring 32. Has been made to get. Further, the eject member 24 is attached to the front left side of the base 26 via a plate-shaped member 38.

The plate member 38 has the eject member 24 on the front left side, and the helical spring 3 at the rear right position.
9 is rotatably supported by a wound rotating shaft 40, and rotates together with the eject member 24 around the rotating shaft 40.

The helical spring 39 has one end received by the plate-like member 38 and the other end received by the base 26, and the plate-like member 38 faces the upper end of the eject member 24 toward the front of the apparatus main body 13. Bar-like member 23
(FIG. 4), when rotated counterclockwise as viewed from the right side by pressing the plate member 38, the plate member 38 is biased so that the upper end of the eject member 24 returns to the original position facing the front surface of the apparatus main body 13. are doing.

At the right end of the plate-like member 38, an L-shaped locking claw 41 is erected, and the locking claw 41 is
Is rotated inwardly of the base 26, and engages with the rotation shaft 28 to lock the protruding portion 27 inward of the base 26, and also pushes the eject member 24 counterclockwise together with the plate member 38. When rotated, it is separated from the rotation shaft 28.

In the above configuration, as shown in FIG.
Is completely accommodated, the shaft 28 is retracted inside the base 26 (FIG. 1) by the locking pawl 41 (FIG. 1). At this time, the angle θ1 formed by the lever 29 and the cam 30 becomes It becomes a small value, so that the lever 29 has the hook 15A,
A strong urging force F1 is obtained in the direction 15B. Therefore lock nail 2
2 is securely fitted to the notch 21, and the operation unit 12 is
3 so that it can be securely held.

At this time, a biasing force K1 is applied to the cam 30 in a direction indicated by an arrow K1, thereby giving a force for projecting the projecting portion 27 upward. Here, when detaching the operation unit 12 from the apparatus main body 13, the operation unit 12
By pressing the eject button 14 provided on the front surface, the locking claw 41 (FIG. 1) is released from the rotation shaft 28, and the cam 3
The protruding portion 20 and the operating portion 12 protrude upward by the urging force K1 of 0, and become a half-open state as shown in FIG. 6B.

At this time, the angle θ2 formed by the lever 29 and the cam 30 becomes a large value, the urging force F2 of the lever 29 is weakened, and the locking claw 22 is easily cut off by pulling the operating portion 12 in the direction of arrow A. From the operating unit 12
Can be removed from the apparatus body 13.

According to the above configuration, when the operation section 12 is mounted on the apparatus main body 13, the operation section 12 can be securely held with a strong holding force F1. When detaching, it is possible to realize a detachable lever device that allows the operation unit 12 to be easily detached.

In the above embodiment, the operation unit 12
And terminals 15A to 16B provided on the apparatus main body 13 and the operation unit 1
2 is transmitted to the apparatus main body 13 through the terminals 15A to 16B.
The present invention is not limited to this, and can be applied to a device for transmitting a control command of an operation unit to a device main body by a wireless method when the operation unit is attached to and detached from the device main body.

In the above-described embodiment, the lever device 20 is used to remove the operation unit 12 from the device main body 13 of the acoustic device 11. However, the present invention is not limited to this, and the lever device 20 may be used between detachably mounted members. It can be widely applied as a detachable mechanism.

[0034]

As described above, according to the present invention, when the operation unit is mounted on the apparatus main body, the cam is moved to the first sliding position of the cam groove to bend the lever with respect to the cam. When the lever is pressed against the operating portion by the first biasing force of the elastic member to hold the operating portion on the device main body and remove the operating portion from the device main body, the cam is moved to the first portion of the cam groove.
Is moved from the sliding position to the second sliding position, and the lever is opened with respect to the cam by the first biasing force, whereby the lever is moved by the second biasing force weaker than the first biasing force of the elastic member. Is pressed against the operation unit to hold the operation unit on the apparatus main body, so that when the operation unit is mounted on the apparatus main body, the lever is operated by the relatively strong first biasing force of the elastic member. When the holding force on the operating portion is increased and the operating portion is detached from the apparatus main body, the holding force on the operating portion of the lever can be weakened by the second biasing force of the elastic member. This makes it possible to realize a detachable lever device which enables a proper holding and a smooth detachment when the operation unit is detached.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an overall configuration of an embodiment of a lever device according to the present invention.

FIG. 2 is a perspective view showing a state in which the acoustic device equipped with the lever device of FIG. 1 is stored in a vehicle interior panel.

FIG. 3 is a perspective view of an acoustic device equipped with the lever device of FIG. 1;

FIG. 4 is a perspective view showing an engagement portion between the apparatus main body and an operation unit in FIG. 3;

FIG. 5 is a schematic sectional view for explaining the operation of the embodiment.

FIG. 6 is a schematic sectional view for explaining the operation of the embodiment.

FIG. 7 is a perspective view showing an engagement portion between an apparatus main body and an operation unit of a conventional acoustic device.

FIG. 8 is a cross-sectional view illustrating a configuration of a conventional lever device.

[Explanation of symbols]

1, 13 ... device main body, 2, 12 ... operation unit, 3, 6,
17, 18 ... terminals, 4, 15A, 15B ... hooks,
5, 20 ... lever device, 7, 16A, 16B ... engagement concave portion, 9, 24 ... eject button, 11 ... sound device, 19 ... opening, 21 ... notch, 22 ... locking claw , 23... Rod-shaped member, 24... Eject member, 25
... Periphery, 26,... Base, 27,.
0 ... rotating shaft, 29 ... lever, 30 ... cam, 31 ...
… Links, 32, 39… string wound springs, 33A, 33B,
34A ... engagement hole, 35 ... engagement pin, 36 ... cam groove, 37 ... cam pin, 38 ... plate member, 41 ... locking claw.

Claims (1)

(57) [Claims] 1. A detachable lever device in which an operation unit can be detachably attached to an apparatus main body , wherein the operation unit is raised by being pressed against the operation unit.
A lever which is held by the recording apparatus main body, a cam which is foldably connected to the lever, a cam groove for guiding the movement of the cam, and a cam which is bent when the cam is bent with respect to the lever .
And an elastic member for urging the bar to open the cam, wherein the operation unit is mounted on the apparatus main body.
Move the cam to the first sliding position of the cam groove.
Bend the lever with respect to the cam.
Operating the lever with the first biasing force of the elastic member.
Unit, and hold the operation unit on the main unit.
When removing the operation unit from the main unit, remove the cam
The cam groove is moved from the first sliding position to the second sliding position.
To move the cam with the first urging force.
The first bias of the elastic member is caused by opening a lever.
The lever with the second urging force weaker than the force
A detachable lever device, wherein the operation unit is pressed to hold the operation unit on the apparatus main body .