JPH0635513Y2 - Lid opening / closing mechanism for operation panel of equipment - Google Patents

Description

[Detailed Description of the Invention] Industrial field of application The present invention relates to a lid opening / closing mechanism for an operation panel of a device, particularly when the device is not in use, the operation panel is covered and is opened to expose the operation panel when the device is used. The present invention relates to a lid opening / closing mechanism for an operation panel of a device.

Some electric devices include a lid that covers the front operation panel when not in use and that opens to expose the operation panel when in use.

Among the lids of this type, there are a lid that pivots so as to fall forward of the operation panel, and a lid that pivots toward the bottom side of the electric device and is stowed there. The latter is preferable because the lid does not interfere with the operation of the device.

2. Related Art One example of a conventional lid opening / closing mechanism of this type is shown in FIG. Axis 1
Is fixed to the side surface 3 of the electric device 2 and is fixed. Four
Is a lid, the arm 5 of which is pivotally mounted on the shaft 1.
Reference numeral 6 is a rotating mechanism for rotating the lid 4.

When the device 2 is not used, the lid 4 covers the operation panel 7 on the front surface of the device 2 as shown by the solid line.

When a button is operated during use of the device 2, the rotation mechanism 6 is driven, the lid 4 is rotated in the direction of arrow A, and the lid 4 moves from the position indicated by the one-dot chain line to the position finally indicated by the two-dot chain line. Then, it opposes the bottom surface 8 of the device 2 and is stowed here, and the operation panel 7 is exposed.

After the use of the device 2 is stopped, the lid 4 is rotated in the direction of the arrow B by the rotation mechanism 6 to cover the operation panel 7 again.

Problems to be Solved by the Invention The lid 4 facing the bottom surface 8 cannot be moved further into the device. Further, the corner portion 9 between the operation panel 7 and the bottom surface 8 of the device 2 has to be an arc surface centered on the shaft 1.

Therefore, a part of the lid 4 facing the bottom surface 8 can be seen from the front, and the lid 4 cannot be completely stowed.

Further, it is not preferable in terms of the design of the device 2 that the corner portion 9 has an arc surface.

An object of the present invention is to provide a lid opening / closing mechanism for an operation panel of a device that solves the above problems.

Means for Solving the Problems The present invention relates to an operation panel of a device in which a lid body covers a front operation panel of a device in a closed state, and the lid body reaches a bottom side of the device to expose the front operation panel. In the lid opening / closing mechanism for a vehicle, the lid is configured to include a lid body, an arm extending from the lid body, and a shaft provided on the arm, and is formed on the device side. An elongated hole that movably supports the shaft of the lid body in a direction in which a distance with respect to a corner formed by the front operation panel and the bottom surface of the device changes, and rotatably provided in the device, The rotation arm is connected to the arm portion, and the rotation of the rotation arm causes the lid body to rotate about the shaft via the arm portion, and the lid body passes through the corner. When moving the shaft so that the shaft approaches the corner and the lid body Is provided with a rotating mechanism for moving the shaft in the elongated hole so as to separate from the corner and the front operation panel after passing through the corner.

The structure in which the shaft provided on the arm extending from the lid main body is supported by the long hole formed on the device side, and the rotating mechanism is composed of the rotating arm unit connected to the arm unit is Only by the movement, the lid body is rotated, and at the same time, the lid body is moved so as not to interfere with the corner of the lid body.

Embodiment FIG. 1 shows a lid opening / closing mechanism for an operation panel of a device according to an embodiment of the present invention.

FIG. 2 shows a closed state, and FIG. 3 shows an opened state.

4 to 7 are views for explaining the lid opening operation.

In FIGS. 1 to 3, 10 is an electric device. Reference numeral 11 denotes a front operation panel, on which various operation buttons 12 are arranged. 13
Is a bottom surface near the operation panel, and the lid main body is stowed facing here. With the device 10 placed on the table,
The bottom surface 13 is separated from the base, and a space for storing the lid body is formed between the bottom surface 13 and the base. Reference numeral 14 is a corner formed by the operation panel 11 and the bottom surface 13 and has a square shape.

Reference numeral 15 denotes a lid body, and the lid body 16 and the arms at the upper and lower ends in the longitudinal direction.
17 (one is not shown). A shaft 18 is implanted in a part of the arm 17 and a hole 17a is formed at the tip thereof.

Reference numeral 19 denotes a bracket, which is fixed inside the side surface 20 of the device 10.

Reference numeral 21 is a long hole that constitutes a support portion, and is formed on the bracket 19 so as to extend horizontally in different steps. Pins because they are horizontal
17 is supported stably. The right end side of the elongated hole 21 in FIG. 1 is parallel to the locus of movement of the pin 36 between the positions S ₃ and S _{4 of} the rotating arm 34 described later.

P ₁ , P ₂ , and P ₃ are positions in the long hole 21, respectively. P ₁ is closest to corner 14, P ₃ is corner 14 and operation panel
The farthest position from 11, P ₂ is the middle position.

The shaft 18 is rotatably and movably fitted in the elongated hole 21.

The lid 15 is supported by fitting the shaft 18 into the elongated hole 21.

Reference numeral 30 denotes a rotating mechanism, which includes a motor 31, a worm gear mechanism 32, a gear 33, and a rotating arm 34. All of these are attached to the bracket 19.

The gear 33 and the rotating arm 34 are supported by the shaft 35 on the bracket 19 and rotate integrally. The position of the shaft 35 is set at a predetermined position with respect to the elongated hole 21.

A pin 36 is planted at the tip of the rotating arm 34, and the pin 36 is fitted in the hole 17a.

Next, the opening / closing operation of the lid 15 will be described with reference to FIGS. 4 to 7.

The lid body 16 always rotates about the shaft 18 as will be described later, and the radius R of rotation thereof is unchanged.

Initially, the rotating arm 34 is in the rotating position S ₁ shown in FIGS. 1 and 4, and the lid 15 is in the rotating position shown in FIGS. Covering 11. Axis 18 is located at P ₂ .

When the button 40 is operated when the electric device 10 is used, the rotating mechanism 30 operates. That is, the motor 31 starts, rotates in the forward direction and rotates in the clockwise direction, and the worm gear mechanism 32 causes the gear to move.
33 rotates in the clockwise direction (direction of arrow D), and the rotation arm 34 rotates together with the gear 33. The pivot arm 34 has a position S ₂ ,
Through S _3, and finally rotated to the position S _4.

By the rotation of the rotation arm 34 from S ₁ to S ₂ , the shaft 18 is pushed and moves along the elongated hole 21 in the arrow X ₁ direction to P ₁ . That is, the shaft 18 moves toward the corner 14. Arm 17 axis
Rotate around 18 in the direction of arrow C.

As a result, the lid body 15 moves in a direction away from the operation panel 11 and rotates about the shaft 18 in the arrow C direction as shown in FIG.

Here, the turning radius R of the lid body 16 does not change, but since the center of rotation of the lid body 16 approaches the corner 14, the lid body 16 does not collide with the corner 14 even if the corner 14 has an angular shape. Pass the 14 corners without difficulty.

By the rotation of the rotation arm 34 from S ₂ to S ₃ , the shaft 18 is now pulled and moved along the elongated hole 21 in the arrow X ₂ direction to return to the original position P ₂ . The arm 17 rotates about the shaft 18 in the arrow C direction.

As a result, the lid main body 16 has a shaft 18 as shown in FIG.
Rotate in the direction of arrow C about
Move in X ₂ direction. The movement of the direction of arrow X _2, the lid body
16 is drawn to the bottom surface 13 side.

In the final rotation process where the rotating arm 34 goes over S ₃ to S ₄ ,
As shown in FIG. 7, the shaft 18 is further pulled by the rotating arm 34 and further moves in the direction of the arrow X ₂ beyond the position P ₂ to the position P ₃
As a result, the arm 17 moves in the direction of the arrow X ₂ without rotating, and is pulled up slightly upward.

As a result, the lid body 16 moves in the direction of the arrow X ₂ while maintaining the horizontal posture shown in FIG.

As a result, the lid body 15 is opened, the operation panel 11 is exposed and the device 10 can be operated, and the lid body 16 is placed on the bottom surface 13 of the device 10, as shown in FIGS. 3 and 7. It will be completely stowed to the side.

When the button 40 is operated again after using the device 10,
31 starts, reverses and rotates counterclockwise, and the rotating arm 34
Rotates counterclockwise (direction of arrow C) to position S ₁ ,
15, axis 18 moves in the direction of arrow X ₁ to P ₁ and then arrow X ₂
It moves in the direction and returns to P ₂ while rotating in the direction of arrow D. The lid body 15 moves in the direction of the arrow X ₁ and then rotates in the direction of the arrow D to smoothly pass through the corner 14 and finally shown in FIGS. 1, 2, and 4. So that the operation panel 11 is covered.

The above-described gear 33 and rotating arm 34 are also provided for another arm, and the lid 15 is opened and closed by applying rotational force to both arms in synchronization.

Next, the structure of the assembly of the gear 33 and the rotating arm 34 will be described with reference to FIG. 8, FIG. 9, and FIG.

The rotating arm 34 is crimped to the collar 50. The hollow shaft 51 is fixed to the gear 33. The collar 50 is rotatably fitted to the hollow shaft 51 and is prevented from coming off by a washer 52.

A torsion coil spring is provided between the gear 33 and the rotating arm 34.
53 is provided, and the pin 54 of the rotating arm 34 is a long hole of the gear 33.
It is fitted to 33a.

As a result, the rotating arm 34 rotates together with the gear 33. At the final rotation of the gear 33, bend the spring 54 to
Only 33 pivots independently of pivot arm 34.

Next, regarding the circuit for controlling the operation of the lid opening / closing mechanism,
It will be described with reference to the drawings.

In the figure, 60 is a motor controller. SW ₁ is a limit switch, and as shown in Figs. 1, 9, and 10, the gear
It is attached to 33.

SW ₂ is a closed position detecting switch, and SW ₃ is an open position detecting switch, which is attached to the bracket 19 as shown in FIG.

65, 66, 67, 68 are AND gates, and 70, 71, 72 are inverters.

In the closed state of FIG. 1, switch SW ₁ is on and switch S is
W ₂ is on and switch SW ₃ is off.

By operating the button 40, a clockwise rotation command is input from the terminal 61 to the motor control unit 60.

Upon receipt of this command, the motor control unit 60 starts the motor 31 to rotate it in the clockwise direction and also starts the timer 62. The timer 62 is set to be slightly longer than the time normally required for the lid opening operation.

When the motor 31 starts and the rotating arm 34 rotates clockwise to start the lid opening operation, both the switches SW ₁ and SW ₂ are turned off.

When the rotation arm 34 reaches S ₄ within the set time of the timer 62, when the rotation arm 34 reaches S ₄ and is pushed by the rotation arm 34 and the switch SW ₃ is turned on. A signal is output from the AND gate 67 and supplied to the terminal 60a of the motor control unit 60, and the motor control unit 60 stops the motor 31. As a result, the lid 15 is brought into the open state shown in FIG.

If the set time of the timer 62 elapses before the switch SW ₃ is turned on, a signal is output from the AND gate 68 and supplied to the terminal 60b when the set time elapses, and the motor control unit 60
Reverses the motor 31. As a result, the lid 15 is returned to the closed state shown in FIG. This is a countermeasure against a case where some abnormality occurs during the lid opening operation.

In the open state of FIG. 7, the switch SW ₃ is turned on and the switch S is turned on.
W ₁ and SW ₂ are off.

When the button 40 is operated, a counterclockwise rotation command is input from the terminal 62, and the motor control unit 60 starts the motor 31 to rotate it counterclockwise.

When the motor 31 starts and the rotating arm 34 rotates counterclockwise to start the closing operation, the switch SW ₃ is turned off.

When the rotating arm 34 reaches S ₁ , the switch SW ₂ is pushed to be turned on, and then the gear 33 rotates independently of the rotating arm 34, the switch SW ₁ moves to hit the pin 54, and the switch SW ₂ moves. ₁
Turns on. At this time, a signal is output from the AND gate 65, which is applied to the motor control unit 60 via the terminal 60a, and the motor control unit 60 stops the motor 31. As a result, the lid 15 is brought into the closed state shown in FIG.

For example, when an abnormality occurs such that a foreign object is caught between the lid body 16 and the operation panel 11, the switch SW ₂ is off and the switch SW ₁ is on. In this case,
A signal is output from the AND gate 66, which is applied to the motor control unit 60 via the terminal 60b, and the motor control unit 60
Invert 31. As a result, the lid closing operation is reversed and the lid opening operation is performed.

Further, the movement trajectory of the lid main body 16 can be freely set by changing the shape of the long hole 21. Therefore, the size of the lid 16,
By appropriately determining the shape of the long hole 21 according to the shape or the shape of the main body side, the lid 16 can be reliably moved without being restricted by the size, shape, main body side, etc. of the lid 16. You can

Further, since the movement of the lid can be a combination of a straight line and a rotation, obstacles can be surely avoided, and a lid opening / closing mechanism with a smooth movement and a high-class feeling can be realized.

Effect of the Invention As described above, according to the present invention, the operation of rotating the lid body only by the rotation of the rotating arm and the trajectory of the lid body so as not to interfere with the corner portion of the device. It is possible to perform both the operation of drawing and the operation of drawing. As a result, in the case where the corner of the device has an angular shape, the operation of completely retracting the lid by retracting the lid on the bottom side of the device can be realized with a simple structure, and the structure can be simplified. Therefore, reliability can be improved. It also has the feature that the opening and closing operations can be easily adjusted.

[Brief description of drawings]

FIG. 1 is a side view showing a lid opening / closing mechanism for an operation panel of a device according to an embodiment of the present invention, and FIGS. 2 and 3 are perspective views showing a lid closed state and an lid opened state, respectively. 4 to 7 are views for explaining the movement of the lid during the opening operation, and FIG. 8 is an exploded perspective view of the assembly of the gear and the turning arm of the turning mechanism in FIG. 9 and 10 are a plan view and a bottom view, respectively, of the gear rotation arm assembly, FIG. 11 is a circuit diagram of an operation control circuit of a lid opening / closing mechanism, and FIG. 12 is a conventional lid for an operation panel. It is a figure which shows an example of an opening / closing mechanism. 10 …… Electrical equipment, 11 …… Operation panel, 12 …… Operation buttons, 13
...... Bottom surface, 14 ...... corner, 15 ...... lid body, 16 ...... lid body, 17 …… arm, 17a …… hole, 18 …… axis, 19 …… bracket, 20 …… side, 21 …… Long hole, 30 …… Rotating mechanism, 31 ……
Motor, 32 …… Worm gear mechanism, 33 …… Gear, 34 ……
Pivoting arm, 35 …… axis, 36 …… pin.

Claims (1)

[Scope of utility model registration request] 1. A lid opening / closing mechanism for an operation panel of a device, wherein a lid covers a front operation panel of a device in a closed state, and the lid reaches a bottom side of the device to expose the front operation panel. The lid body is configured to include a lid body, an arm extending from the lid body, and a shaft provided on the arm, and is formed on the device side. An elongated hole that movably supports the shaft in a direction in which the distance to the corner formed by the front operation panel and the bottom surface of the device changes, and the device is rotatably provided in the device and is connected to the arm portion. The rotation arm causes the rotation of the rotation arm to rotate the lid body about the shaft via the arm portion, and when the lid body passes through the corner, the shaft is rotated. After approaching the corner and after the lid body passes through the corner The shaft the corners and the front operation panel away from formed by and a rotating mechanism for moving the long hole equipment operation panel for the lid opening and closing mechanism.