JP2000148272A - Lever device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain the lever device which eliminates the need for torque adjustment at the time of the assembly of the lever device and enables a user to easily adjust torque to optimum slide torque according to a feeling of lever operation by rotating a dial with a finger after the product is assembled. SOLUTION: This device is equipped with a spring 2 which applies slide torque to a lever 4 and the slide torque adjusting dial 1 which abuts against the spring to adjust the slide torque to the lever. Then the spring is made to abut against a cam 1B formed integrally with the slide torque adjusting dial and the cam rotates as the slide torque adjusting dial is adjusted to increase and decrease the slide torque applied to the lever.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] 1. Field of the Invention [0002] The present invention relates to a lever device such as a fader lever used for a wipe switching operation, a wipe moving operation, a video source switching operation, and the like in a video editing device or the like.

[0002]

2. Description of the Related Art Conventionally, in this type of lever device,
To prevent the lever from sliding unintentionally,
It is common to apply a sliding torque. However, actually, the sliding torque may be loosened or excessively hardened by use, and therefore, it is desired to provide a sliding torque adjusting mechanism. Nevertheless, few lever devices are provided with a lever sliding torque adjustment mechanism. Moreover,
Even those with a sliding torque adjustment mechanism are used to correct variations in the sliding torque during assembly.After adjusting the sliding torque, do not perform the adjustment but keep it constant. ing.

[0003]

However, in the conventional lever device described above, the sliding torque must be adjusted during assembly, and after assembly, the sliding torque of the lever is kept constant. However, there is a problem that the optimum sliding torque cannot be obtained by adjusting the sliding torque. Further, in the conventional lever device, since the adjustment of the sliding torque is performed only at the time of assembling, there is no adjusting portion provided on the operation panel of the product. There was a problem that had to be adjusted from.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned conventional problems, and does not require a torque adjusting operation at the time of assembling the lever device, and does not disassemble the lever device after assembling the product. It is an object of the present invention to provide a lever device which can easily adjust the optimal sliding torque according to the operation feeling of the lever by turning or moving the dial with a finger.

[0005]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention provides a spring for applying a sliding torque to a lever, and a sliding torque adjusting dial for contacting the spring to adjust the sliding torque for the lever. And abuts the spring on a cam formed integrally with the sliding torque adjustment dial,
The cam is rotated by adjusting the sliding torque adjusting dial to increase or decrease the sliding torque of a spring applied to the lever.

According to the present invention, the sliding torque adjusting dial is moved to adjust the sliding torque of the spring applied to the lever, so that the user himself can turn or move the dial with his / her finger and feel the operation of the lever. An excellent lever device that can easily be adjusted to the optimum sliding torque according to the above is obtained.

In order to solve the above-mentioned problems, the present invention comprises a spring for applying a sliding torque to a lever, and a sliding torque adjusting dial for adjusting the sliding torque of the spring. A sliding torque adjusting dial is provided so that a dial of the adjusting dial projects, and after assembling the device, the dial is rotated to adjust a sliding torque of a spring applied to a lever.

According to the present invention, since the sliding torque of the spring can be adjusted by the sliding torque adjusting dial from the operation panel after assembling the device, the adjusting of the sliding torque at the time of assembling is unnecessary, and the product is assembled. An excellent lever device that allows the user to adjust the sliding torque by turning the dial without disassembling the product later.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS According to the first aspect of the present invention, there is provided a pressing means for applying a sliding torque to a lever for operating a device, and a sliding torque for the lever is adjusted by contacting the pressing means. A sliding torque adjusting means, wherein the sliding torque is adjusted by adjusting the sliding torque adjusting means, whereby the sliding torque of the pressing means applied to the lever is adjusted. By providing an adjusting means for adjusting the sliding torque,
This has the effect that the sliding torque of the pressing means can be easily adjusted with a finger.

According to a second aspect of the present invention, the pressing means comprises a spring for applying a sliding torque to the lever, and the sliding torque adjusting means adjusts the sliding torque. By providing a dial for adjusting the sliding torque of the spring that applies the sliding torque to the lever, it is possible to easily adjust the sliding torque of the spring with a finger. Has an action.

According to a third aspect of the present invention, the sliding torque adjusting dial comprises a cam formed integrally with the sliding torque adjusting dial and a dial for rotating the cam. By rotating the dial, the cam rotates to increase or decrease the amount of deflection of the spring, and the cam for adjusting the sliding torque and the dial for rotating the cam are integrated to adjust the sliding torque. By configuring the dial and rotating the cam by the dial to adjust the sliding torque of the spring, the user can easily turn the dial to adjust the sliding torque of the lever. .

According to a fourth aspect of the present invention, the spring abuts on a rotating shaft of the lever to apply a sliding torque,
The cam is rotated to increase or decrease the amount of deflection of a spring abutting on the rotating shaft, and a simple means is provided by abutting a spring for applying a sliding torque to the rotating shaft of the lever. Accordingly, the sliding torque of the spring can be easily adjusted with a finger.

According to a fifth aspect of the present invention, the sliding torque adjusting dial is provided so that the dial protrudes from the operation panel of the main body, and the dial is rotated after assembly of the device to reduce the sliding torque. Adjusting the sliding torque of the spring with the sliding torque adjustment dial from the operation panel after assembling the device eliminates the need to adjust the sliding torque during assembly. The user can turn the dial to adjust the sliding torque without disassembling the product even after the product is assembled.

According to a sixth aspect of the present invention, the pressing means comprises a spring for applying a sliding torque to the lever, and the sliding torque adjusting means adjusts the sliding torque. By providing a sliding torque adjusting lever for adjusting the sliding torque of a spring for applying a sliding torque to the lever, the sliding torque of the spring can be easily adjusted with a finger. It has the effect of being able to.

According to a seventh aspect of the present invention, the sliding torque adjusting lever comprises an integrally formed cam for adjusting the sliding torque and an adjusting lever for moving the cam, wherein the sliding torque adjusting lever is provided. By moving the adjustment lever,
The cam is moved to increase or decrease the amount of deflection of the spring, and a cam for adjusting the sliding torque and an adjusting lever for moving the cam are integrally formed as a sliding torque adjusting lever. By adjusting the sliding torque of the spring by moving the cam, the user can easily move the adjusting lever to adjust the sliding torque of the lever.

According to an eighth aspect of the present invention, the sliding torque adjusting lever is provided so that the adjusting lever protrudes from the main body operation panel, and the adjusting lever is moved and slid after assembly of the apparatus. It is to adjust the torque,
Since the sliding torque of the spring can be adjusted by the sliding torque adjusting lever from the operation panel after assembling the device, it is not necessary to adjust the sliding torque during assembly, and the product can be disassembled even after product assembly. This has the effect that the user can move the adjustment lever to adjust the sliding torque without any need.

Hereinafter, based on the attached drawings, FIGS. 1 to 3,
An embodiment of the present invention will be described in detail. 1 is a perspective view of a lever device according to a first embodiment of the present invention, FIG. 2 is a cross-sectional view taken along line AA of the lever device shown in FIG. 1, and FIG. FIG. 3B is a sectional view showing the action of the spring and the cam, FIG. 3B is a sectional view showing the action of the leaf spring and the cam when the sliding torque of the lever device is increased, and FIG. It is BB sectional drawing of the lever apparatus shown.

(Embodiment 1) First, referring to FIG.
The configuration of the lever device according to the first embodiment of the present invention will be described. In FIG. 1, 1 is a sliding torque adjusting dial as sliding torque adjusting means, 1A is a dial of the sliding torque adjusting dial 1, 1B is a cam of the sliding torque adjusting dial 1, and 2 is a sliding torque applied to the lever. A leaf spring as a pressing means, 3 is a lever shaft, 4 is a lever for operating the device, 5 is an A chassis that supports the lever device, 6 is a B chassis that supports the lever device, and 7 is an operation panel of the device. The pressing means 2 may be formed of any elastic member such as a metal or non-metal spring and rubber or resin.

Next, the configuration of the lever device according to the present embodiment will be described in more detail. The sliding torque adjusting dial 1 is integrally fixed by a dial 1A and a cam 1B, and is rotated by the dial 1A. Leaf spring 2 in contact
Act to displace. In the first embodiment, the sliding torque adjusting dial is used in which the leaf spring 2 abutting on the cam 1B is displaced by rotating the dial 1A. Any other adjusting means such as a sliding torque adjusting lever that displaces a leaf spring by moving the lever left and right or up and down using a lever may be used.

The lever 4 is used to actually operate the device.
It is fixed to the shaft 3 acting as a rotation axis of the lever 4. One of the shafts 3 connecting the torque adjustment dial 1 and the lever 4 is inserted into the B chassis 6, and the other of the shaft 3 is inserted into the A chassis 5. The leaf spring 2 is mounted such that one side thereof is in contact with the shaft 3, and the cam 1 </ b> B is in contact with the other side so that the leaf spring 2 bends. Thus, the displacement of the leaf spring 2 in contact with the cam 1B can be changed. After the shaft 3 is inserted into the A chassis 5 and the B chassis 6, the leaf spring 2, the A chassis 5 and the B chassis 6 are fixed with screws. At this time, the leaf spring 2 is bent by the pressing force of the cam 1 </ b> B, and a sliding torque is generated by the rotation of the shaft 3 by the operation of the lever 4 and the frictional resistance between the leaf spring 2.

Next, the operation of the lever device according to the first embodiment of the present invention will be described with reference to FIGS. FIG. 2A shows the leaf spring 2 when the sliding torque of the lever device is minimum.
FIG. 4 is a cross-sectional view showing the operation of the cam 1B. When rotating, a sliding torque is generated due to frictional resistance between the shaft 3 and the leaf spring 2.
The position of the cam 1B in FIG. 2A shows a state where the distance from the contact point with the leaf spring 3 to the rotation center of the cam 1B is the shortest, and the displacement amount of the leaf spring 2 and the load on the shaft 3 are minimum. Therefore, the sliding torque generated when the lever 4 operates is also minimized.

FIG. 2B is a sectional view showing the operation of the leaf spring 2 and the cam 1B when the sliding torque of the lever device is increased. By turning the dial 1A clockwise, the cam 1B also rotates. The distance between the contact point between the leaf spring 2 and the cam 1B and the rotation center of the cam 1B increases, and the displacement of the leaf spring 2 increases. At this time, since the load on the shaft 3 also increases, the sliding torque when the lever 4 is operated increases. Therefore,
By rotating the sliding torque adjusting dial 1 to an arbitrary position, the sliding torque when the lever 4 is operated can be increased or decreased.

FIG. 3 is a sectional view showing the dial of the lever device when attached to the operation panel. The operation panel 7 is provided with a hole through which the lever 4 and the dial 1A pass.
When installing the lever device, lever 4 and dial 1
A is made to protrude from above the operation panel 7. By attaching the lever device to the operation panel 7, the operation of the dial 1A on the operation panel 7 becomes possible. Further, since the dial 1A protrudes from the operation panel 7 even after the product assembly is completed, the dial 1A can be rotated to adjust the sliding torque.

As described above, according to the first embodiment, the leaf spring 2 is attached to the shaft 3 to which the lever 4 is connected so as to abut, and the leaf spring 2 is fixed by the cam 1B integrally fixed to the dial 1A. 2 can be flexibly adjusted to allow the dial 1A to protrude from the operation panel 7, so that the user can reduce the sliding torque at any time according to his / her preference without disassembling the product again after assembling the product. The effect of being able to adjust is obtained.

[0025]

The present invention is constructed as described above. In particular, the lever device is provided with a sliding torque adjusting dial comprising a dial for adjusting the sliding torque of the spring with respect to the lever and a cam, and the dial is mounted on the operation panel. The user can easily adjust the sliding torque according to his / her preference by turning the dial with his / her finger without disassembling the product again after the product is assembled.

[Brief description of the drawings]

FIG. 1 is a perspective view of a lever device according to a first embodiment of the present invention,

FIGS. 2A and 2B are cross-sectional views of the lever device shown in FIG. 1, taken along the line AA. FIG. Sectional view showing the action of the leaf spring and the cam when the sliding torque of the device is increased,

FIG. 3 is a cross-sectional view of the lever device showing the position of the dial when attached to the operation panel, taken along line BB.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Sliding torque adjustment dial 1A dial 1B Cam 2 Leaf spring 3 Shaft 4 Lever 5 A chassis 6 B chassis 7 Operation panel

Claims (8)

[Claims] 1. A sliding torque adjusting device comprising: pressing means for applying a sliding torque to a lever for operating a device; and sliding torque adjusting means for adjusting a sliding torque on the lever by contacting the pressing means. A lever device, wherein the sliding torque of the pressing means applied to the lever is adjusted by adjusting the means. 2. The system according to claim 1, wherein said pressing means comprises a spring for applying a sliding torque to said lever, and said sliding torque adjusting means comprises a sliding torque adjusting dial for adjusting said sliding torque. The lever device as described. 3. The sliding torque adjusting dial comprises an integrally formed cam for adjusting sliding torque and a dial for rotating the cam. By rotating the sliding torque adjusting dial, the cam is rotated. 3. The lever device according to claim 2, wherein the amount of deflection of the spring is increased or decreased by rotation. 4. A spring according to claim 1, wherein said spring abuts on a rotating shaft of said lever to apply a sliding torque, and rotates said cam to increase or decrease the amount of deflection of said spring abutting on said rotating shaft. The lever device according to claim 2. 5. The sliding torque adjusting dial is provided so that the dial protrudes from the operation panel of the main body, and the sliding torque is adjusted by rotating the dial after assembling the apparatus. The lever device according to claim 2, 3 or 4. 6. The apparatus according to claim 1, wherein said pressing means comprises a spring for applying a sliding torque to said lever, and said sliding torque adjusting means comprises a sliding torque adjusting lever for adjusting said sliding torque. The lever device as described. 7. The sliding torque adjusting lever comprises an integrally formed cam for adjusting a sliding torque and an adjusting lever for moving the cam, and moving the sliding torque adjusting lever to move the cam. 7. The lever device according to claim 6, wherein the lever moves to increase or decrease the amount of deflection of the spring. 8. The sliding torque adjusting lever is provided so that the adjusting lever protrudes from the operation panel of the main body, and the adjusting lever is moved after assembly of the apparatus to adjust the sliding torque. The lever device according to claim 6 or 7, wherein