JP2000065111A - Operation mechanism of operation piece - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce a manufacturing cost, to make the whole compact by restraining the shaft directional length of a spring, and to prevent impairment of an operation feeling by forming a coil spring in a spiral shape such as a diameter of a coil successively contracts or expands. SOLUTION: A volume 108 is installed in a first case member 22. Here, the volume 108 is fixed to the first case member 22 in a state of inserting a rotary shaft 108a into a through hole 22a of the first case member 22 by projecting the rotary shaft 108a having the tip part cut in a D shape to the operation piece 20 side. Fitting holes 22b, 22c are formed to respectively fit the outer peripheral side end part 34a and the inner peripheral side end part of a coil spring 34 for energizing an operation piece 20 in the second case member 24 direction. That is, the coil spring 34 is locked on the first case member 22 by fitting the outer peripheral side end part 34a to the fitting hole 22b and fitting the inner peripheral side end part to the fitting hole 22c.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an operating mechanism of an operating device, and more particularly, to an operating mechanism of an operating device of an image effect device such as a television special image effect device or an audio effect device. The present invention relates to an operation mechanism of an operation element suitable for use in an operation mechanism.

[0002]

2. Description of the Related Art Conventionally, there has been known a television special video effect device capable of superimposing two types of images or switching between two types of images.

In such a television special video effect apparatus, when two types of images are superimposed or two types of images are switched, the degree of superposition of the two types of images depends on the operation amount of the operation element. And the degree of switching is controlled. That is, the television special image effect device includes a volume as a position detecting means interlocked with the operator, and rotates a rotation axis for changing a volume value output from the volume in accordance with the operation of the operator. By moving the volume and changing the volume value in accordance with the operation amount of the operating element, the degree of superposition and the degree of switching between the two types of images are controlled in accordance with the change in the volume value.

By the way, in the operation mechanism of the operator in such a conventional television special video effect device,
A spring has been used to generate a frictional resistance force for applying an operation resistance to the operation element and a friction resistance force for holding the operation element at an arbitrary position.

[0005] As an operating mechanism of an operating element that applies frictional resistance to the operating element using such a spring, for example, an operating mechanism having a structure as shown in FIG. 1 is used. FIG. 1 is a partial cross-sectional view of a conceptual configuration of an operation mechanism of an operation element.

In the operation mechanism of the operation device shown in FIG. 1, the case 200 has side walls 202, 204, and 206.

[0007] Between the side wall portion 204 and the side wall portion 206,
A support shaft 210 formed integrally with a spring receiving member 208 provided continuously with an operation element (not shown) is rotatably supported.

The spring receiving member 208 and the side wall 20
6, a disc spring 212 is provided, and the spring receiving member 208 is moved by the urging force of the disc spring 212 to move the side wall portion 20.
6 is pressed.

The spring receiving member 208 and the side wall 204
In order to increase the frictional resistance, a frictional resistance member 214 formed of, for example, a soft material such as a felt is disposed between the two.

In the above-described configuration, in the operating mechanism of the operating element shown in FIG. 1, the spring receiving member 208 is pressed against the side wall portion 206 by the urging force of the disc spring 212, whereby the spring receiving member 208 is moved to the frictional resistance member. The frictional force is applied to the operator that is pressed into contact with the spring 214 and is connected to the spring receiving member 208.

Further, since the disc spring 212 is used as the spring, the length of the support shaft 210 in the axial direction can be made relatively short, and the overall configuration can be made compact.

However, in the operation mechanism of the operation device shown in FIG. 1, since the frictional force is applied to the operation device using the disc spring 212, a mold for molding the disc spring 212 is required. Further, scraps are generated in the raw material of the disc spring 212 during the manufacturing process.

Therefore, the initial investment for preparing the mold increases, and the specification of the spring for finely adjusting the urging force for generating the frictional resistance cannot be freely changed. As a result, there is a problem in that the cost of raw materials increases, leading to an increase in manufacturing costs.

On the other hand, as an operation mechanism of an operation element using a coil spring as a spring, for example, an operation mechanism having a structure as shown in FIG. 2 is used. FIG. 2 is a partial cross-sectional view of the conceptual structure of the operation mechanism of the operation element.

In the drawings attached to this specification, the same or corresponding components in each drawing are denoted by the same reference numerals, and the components described once in this specification are duplicated. Description is omitted.

In the operation mechanism of the operation device shown in FIG. 2, a frictional force receiving member 216 connected to the operation device (not shown) is integrated between the side wall portion 204 and the side wall portion 206 of the case 200. A supporting shaft 218 formed in a rotatable manner is rotatably supported.

The support shaft 218 has a spring receiving member 22.
0 is disposed, and the spring receiving member 220 and the side wall portion 20 are provided.
6, a coil spring 222 is provided, and the spring receiving member 208 is pressed against the side wall 206 by the urging force of the coil spring 222.

Further, between the spring receiving member 220 and the frictional force receiving member 216 and between the frictional force receiving member 216 and the side wall portion 2.
In order to increase the frictional resistance, a frictional resistance member 214 made of a soft material such as a felt is provided between the first and second members.

In the above-described configuration, in the operating mechanism of the operating element shown in FIG. 2, the spring receiving member 220 is pressed against the side wall portion 206 by the urging force of the coil spring 222, whereby the frictional force receiving member 216 is The frictional force is applied to the operating member connected to the frictional force receiving member 216 by being pressed between the frictional force receiving members 214.

Further, since the coil spring 222 is used as the spring, it is not necessary to prepare a mold at the time of manufacturing the coil spring 222, so that the initial investment can be suppressed, and no scrap is generated. Raw material costs can be reduced, manufacturing costs can be reduced,
The specification of the spring for finely adjusting the urging force for generating the frictional resistance can be freely changed.

However, in the operating mechanism of the operating element shown in FIG. 2, the frictional force is applied to the operating element by using the coil spring 222.
There is a problem that the axial length of No. 2 is larger than that of the disc spring.

Further, when the operation element is rotated, the coil spring 222 is rotated with the rotation of the spring receiving member 220 to cause a twist in the coil spring 222, and the urging force accumulated by the twist after the operation element is rotated. As a result, the operator is returned, and there is a problem that the operational feeling is impaired.

[0023]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned various problems in the conventional operation mechanism of an operation element, and an object of the invention is to reduce the manufacturing cost. The operating mechanism of the operating element which can be designed, and can reduce the length of the spring in the axial direction, thereby making the whole compact and not impairing the operational feeling when the operating element is rotated. It is intended to provide.

[0024]

In order to achieve the above object, according to the first aspect of the present invention, there is provided an operating element having a support shaft rotatably supported by a fixed system member, A coil spring receiving member provided integrally with the operation element; a fixed frictional resistance member disposed to face a friction surface that is one surface of the coil spring receiving member; and the other of the coil spring receiving member The coil spring receiving member is disposed between the coil spring receiving surface and the fixed system member, and is in contact with the coil spring receiving surface to urge the coil spring receiving member to move the coil spring receiving member to the frictional resistance member. The coil spring is formed in a spiral shape such that the diameter of the coil gradually decreases or expands, and the coil spring is perpendicular to the winding direction of the coil. Those having a predetermined height in a direction perpendicular to the winding direction of the coil to provide a biasing force to.

Therefore, according to the first aspect of the present invention, since the spiral coil spring is used, when the coil spring is compressed, the coil spring is placed inside the coil on the outer peripheral side of the coil spring. Since the inner coil is compressed so as to enter, the axial length can be significantly reduced compared to the case of using a normal coil spring, and the overall configuration is as compact as the case of using a disc spring. can do.

Further, according to the first aspect of the present invention, since a coil spring is used, a mold is not required at the time of manufacture and no scrap is produced, so that the manufacturing cost can be reduced. Can be.

According to a second aspect of the present invention, there is provided an operating member having a support shaft rotatably supported by a fixed system member, and a plate-like member integrally provided on the support shaft. A member, a coil spring receiving member axially supported by the support shaft, locked so as not to rotate with respect to the fixed system member, and arranged to face the plate member; and the plate member. And a frictional resistance member disposed between one surface of the coil spring receiving member and one surface of the coil spring receiving member, and between the coil spring receiving surface, which is the other surface of the coil spring receiving member, and the fixing system member. A coil spring disposed to contact the coil spring receiving surface to urge the coil spring receiving member to press the coil spring receiving member against the plate member via the frictional resistance member. , Above carp Spring, have been formed in a spiral shape as the diameter of the coil is reduced sequentially or larger,
In order to apply an urging force in a direction orthogonal to the winding direction of the coil, a predetermined height is provided in a direction orthogonal to the winding direction of the coil.

Therefore, according to the second aspect of the present invention, since the spiral coil spring is used, when the coil spring is compressed, the coil spring is placed inside the coil on the outer peripheral side of the coil spring. Since the inner coil is compressed so as to enter, the axial length can be significantly reduced compared to the case of using a normal coil spring, and the overall configuration is as compact as the case of using a disc spring. can do.

Further, according to the second aspect of the present invention, since a coil spring is used, a mold is not required at the time of manufacture and no scrap is generated, so that the manufacturing cost can be reduced. Can be.

According to a third aspect of the present invention, there is provided an operating element having a support shaft rotatably supported by a fixed system member, and a plate-shaped member integrally provided on the support shaft. A member, a coil spring receiving member which is supported by the support shaft, is locked so as not to rotate with respect to the plate member, and is arranged to face the plate member; and A fixed-system frictional resistance member disposed opposite the friction surface, which is one surface of the member, between the one surface of the plate-like member and the coil spring receiving surface, the other surface of the coil spring receiving member; A coil spring disposed in contact with the coil spring receiving surface to urge the coil spring receiving member to press the coil spring receiving member against the frictional resistance member. Is formed in a spiral shape such that the diameter of the coil gradually decreases or expands, and has a predetermined height in the direction perpendicular to the coil winding direction to apply a biasing force in the direction perpendicular to the coil winding direction. It is.

Therefore, according to the third aspect of the present invention, since the spiral coil spring is used, when the coil spring is compressed, the coil spring is placed inside the coil on the outer peripheral side of the coil spring. Since the inner coil is compressed so as to enter, the axial length can be significantly reduced compared to the case of using a normal coil spring, and the overall configuration is as compact as the case of using a disc spring. can do.

Further, according to the third aspect of the present invention, since a coil spring is used, a mold is not required at the time of manufacture and no scrap is generated, so that the manufacturing cost can be reduced. Can be.

According to a fourth aspect of the present invention, in the first or second aspect of the present invention, at least one end of the coil spring has the fixing system member. Alternatively, it is configured to be locked to the plate-like member.

Therefore, according to the fourth aspect of the present invention, at least one end of the coil spring which comes into contact with the coil spring receiving surface is locked by the fixing member or the plate-like member. Even when the operating element is rotated, the coil spring is not twisted by frictional resistance generated between the coil spring receiving surface and the contact portion of the coil spring due to the rotation of the coil spring receiving member, and is always stable. The coil spring receiving member can be pressed against the frictional resistance member by the urging force. For this reason, even when rotating the operation element, an excellent operation feeling with stable operation resistance can be obtained.

According to a fifth aspect of the present invention, in the first or second aspect of the present invention, the coil spring receiving surface of the coil spring receiving member is provided with the coil spring. Are formed on the outer peripheral portion of the contact point.

Therefore, according to the fifth aspect of the present invention, the grease applied to the coil spring receiving surface is restricted from moving from the coil spring receiving surface by the projecting portion, and the grease is prevented from flowing out. Is done. Also,
The projection also positions the coil spring.

[0037]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an embodiment of an operation mechanism of an operation element according to the present invention will be described in detail with reference to the accompanying drawings.

FIG. 3 is a schematic perspective view showing an example of an embodiment of the operation mechanism of the operating element according to the present invention, and FIG. 4 is an exploded perspective view of the schematic structure. . It is assumed that the operation mechanism of the operator is used, for example, in a television special video effect device.

The operation mechanism 10 of this operator is inserted into the mounting opening 12 provided on the operation panel surface P of the television special image effect device from above the outside of the operation panel surface P, and is inserted into the operation panel surface P. Screw 1 on the mounting base 14
6 are screwed together.

The operating mechanism 10 of the operating element has an opening 1 on its upper surface.
A case 18 is provided as a fixed system member formed with 8a. In this case 18, an operation element 20 having a lever 20a protruding from an opening 18a is arranged. Note that lever 2
A substantially T-shaped grip 112b is attached to the upper end of Oa.

The case 18 includes a first case member 22 to which a volume 108 as a position detecting means is attached,
A second case member 24 having a cutout 24a for forming the opening 18a is provided, and the first case member 22 and the second case member 24 are screw-connected to each other with screws 26. ing.

Here, reference numeral 28 denotes a cover of the operator 20, which is shown in FIGS. 5A, 5B, 5C, 5D, 5E, and 5F.
(G) shows a detailed configuration of the cover 20.

Since the cover 28 is formed in a U-shape in the plan view of FIG. 5A, the lever 20a is positioned between the openings 28a after the operation mechanism 10 is connected to the operation panel surface P. Then, the leg 28b is fitted into the fitting portion 14a of the mounting base 14, and the leg 28b
c is fitted on the fitting portion 14b of the mounting base portion 14, and is disposed on the mounting base portion 14. The grip portion 112b can be separated and the operation mechanism 10 is assembled from below the operation panel surface P. I don't need it.

As described above, the volume 108 is attached to the first case member 22. here,
The rotary shaft 1 is a rotary shaft 1 having a D-cut end.
08a so as to protrude toward the operation element 20 side.
08a is fixed to the first case member 22 in a state of being inserted through the through hole 22a of the first case member 22. Reference numeral 30 denotes a washer inserted through the rotation shaft 108a, and reference numeral 32 denotes a nut inserted through the rotation shaft 108a.

The first case member 22 includes
A fitting hole 22b and a fitting hole 22c are formed to fit the outer end 34a and the inner end 34b of the coil spring 34 which urges the coil spring 0 toward the second case member 24, respectively. . That is, the coil spring 34 fits the outer peripheral end 34a into the fitting hole 22b and fits the inner peripheral end 34b into the fitting hole 22c, so that the first
Locked to the case member 22.

FIGS. 6A and 6B show the detailed structure of the coil spring 34. FIG. That is, the coil spring 34 is formed in a triple winding having three windings, and is formed in a spiral shape such that the diameter of the coil sequentially decreases (or expands). Then, similarly to a general coil spring, the coil spring 34 is wound so as to have a predetermined height h in a direction orthogonal to the coil winding direction in order to apply an urging force in a direction orthogonal to the coil winding direction. Has been turned.

The outer peripheral end 34a and the inner peripheral end 34b of the coil spring 34 are bent in a direction perpendicular to the coil winding direction.

Further, the first case member 22 is provided with an operator position restricting projection 22d formed on both lower sides thereof so as to protrude toward the operator 20.
A stopper bush 36 is fitted into d.

When the position regulating projection 22d into which the stopper bush 36 is inserted and the step 38a (described later) of the shaft disk portion 38 (described later) of the operator 20 abut, the rotation of the operator 20 is achieved. The movement range is regulated.

Next, the operation element 20 will be described. FIG. 7 (a), (b), (c), (d), (e), and (f) show the operation element 2.
0 shows a detailed configuration, and the operating element 20 includes a shaft disk portion 38 connected to the lever 20a. At the center of the shaft disk portion 38, a support shaft 38b is provided, which is formed in a hollow state and protrudes stepwise. The support shaft 38b is connected to the through hole 24b of the second case member 24.
The operation element 20 is supported by the support shaft 38b in a cantilever manner.

The second case member 24 as a fixing system member
By contacting the outer peripheral portion of the through hole 24b with the shaft disk portion 38, a frictional resistance force for applying the operation resistance to the operation element 20 and the operation element 20 are held at an arbitrary position. A frictional resistance member 40 that is made of a soft material such as felt, for example, that generates a frictional resistance is attached.

A step 38a is formed on the shaft disc 38, and when the operation element 20 is rotated around the support shaft 38b, the step 38a moves to the position regulating protrusion 22 described above.
By contacting with d, the rotation range of the operation element 20 is regulated.

Further, the shaft disk portion 38 is provided with a coil spring receiving portion 38c with which the outermost peripheral portion 34c of the coil spring 34 abuts, and the coil spring receiving portion 38c is provided around the coil spring receiving portion 38c. A silicone grease stopper 38d for suppressing the outflow of the silicone grease applied to the receiving portion 38c is formed so as to protrude. The silicone grease stopper 38
d regulates the positioning of the coil spring 34.

Here, the operating element 20 and the rotating shaft 108a of the volume 108 are connected via an axis deviation absorbing member 42 as a connecting member. Therefore, the grip portion 112b
When the operation element 20 is rotated by gripping the rotation of the operation element 20, the rotation shaft 108a is also rotated via the axis deviation absorbing member 42 with the rotation of the operation element 20. Due to the rotation of the rotation shaft 108a, the volume value output from the volume 108 changes.

8 (a), 8 (b), 8 (c), 8 (d), and 9 (e) show the detailed structure of the axial deviation absorbing member 42.
The axis deviation absorbing member 42 includes a disk-shaped main body 44 and a linear ridge 4 formed on one surface of the main body 44 in a diametrical direction.
6 and a first projection 48 and a second projection 50 that are formed to protrude from substantially opposite peripheral portions of the other surface of the main body portion 44. Note that the first projection 48 and the second projection 50
The dimension of the rotary shaft 108a of the volume 108 is set so as to sandwich the D-cut end 108b, and the inner peripheral surface 48a of the first projection 48 is D-cut.
8b is formed along the plane portion, and the inner peripheral surface 50a of the second projection 50 is formed along the curved surface portion of the D-cut distal end portion 108b.

The linear projection 46 and the first projection 48
The second projection 50 and the second projection 50 are formed such that their extending directions are orthogonal to each other. That is, the linear protrusion 46 and the first protrusion 48 and the second protrusion 50
8b and the axis direction of the rotating shaft 108a, and
The positions are set so as to be orthogonal to each other.

Further, the linear projection 46 is formed so as to be tapered toward the distal end portion 46a, and the first projection 48 and the second projection 50 are provided with the main body portion 44 so as to be opposed to the respective distal end portions. Projection 48 projecting parallel to
b and 50b are formed respectively.

Therefore, the first projection 4 of the axial misalignment absorbing member 42
8 and the second protrusion 50 are connected to the rotation shaft 108 of the volume 108.
a can be disposed so as to sandwich the D-cut distal end portion 108b of FIG.
It can be prevented from easily detaching from the D-cut distal end portion 108b of FIG. For this reason,
In the operation of attaching the axial deviation absorbing member 42 to the hollow recess 38e having the support shaft 38b and the rotating shaft 108a, first, the first protrusion 4 of the axial deviation absorbing member 42 is used.
8 and the second protrusion 50 are connected to the rotation shaft 108 of the volume 108.
The workability can be improved by arranging the D-cut end portion 108b of FIG.

When the axial deviation absorbing member 42 is formed of an elastically deformable material such as resin, for example,
Backlash can be reduced and workability can be further improved. That is, the first protrusion 48 and the second protrusion 5
0 is elastically deformed to rotate the rotary shaft 108 of the volume 108.
When the D-cut end portion 108b of FIG. a is sandwiched, the axial displacement absorbing member 42 is sandwiched by the D-cut end portion 108b of the rotating shaft 108a due to the elastic deformation of the protrusions 48b and 50b. As a result, the backlash is reduced, and the misalignment absorbing member 42 is
08a can be reliably prevented from detaching from the D-cut distal end portion 108b by its own weight. For this reason, the shaft deviation absorbing member 42 is connected to the recess 38e and the rotating shaft 1.
08a can be significantly improved in workability.

Here, a support shaft 38b is provided at the center of the shaft disk portion 38 of the operation member 20 and has a hollow inside and is formed to protrude in a stepwise manner. The support shaft 38b is formed. At the bottom of the hollow recess 38e, a fitting groove 38f is formed in which the linear projection 46 of the axial deviation absorbing member 42 can be slidably fitted in the extension direction.

That is, the axis deviation absorbing member 42 is formed as shown in FIG.
(B) As shown in FIG.
f so as to be slidable in the extension direction thereof, and
The projection 48 is slidably fitted along the curved surface of the D-cut distal end of the rotating shaft 108a, and the second projection 50 is fitted along the flat portion of the D-cut distal end of the rotating shaft 108a. The operator 20 and the rotating shaft 108a are connected by slidably fitting the actuator 20 into the controller 20.

A plurality of ridges 38g are formed concentrically on the surface of the shaft disc portion 38 of the operator 20 on the side of the support shaft 38b. When the ridge 38g is pressed against the frictional resistance member 40 formed of a soft material, a groove is formed on the surface of the frictional resistance member 40 at a position facing the ridge 38g, and an axial circle is formed along the groove. Since the plate portion 38 slides, the sliding position of the shaft disk portion 38 can be fixed, and a stable frictional force can be obtained.

When a lateral force other than a rotational force is applied to the grip portion 112b of the operation member 20, the silicone grease stopping portion 38d around the coil spring receiving portion 38c of the shaft disk portion 38 of the operation member 20 may be used. Since the two projecting portions 38h projected on the first case member 22 come into contact with the first case member 22,
The lateral play of the operation element 20 can be suppressed.

FIG. 10 is a view of the second case member 24 as viewed from the direction indicated by the arrow X in FIG. 4. On the lower surface of the second case member 24, cords (conductive wires) such as a volume 108 are grouped. And a clip 24b for holding it.

In the above-described configuration, in the operating mechanism 10 of the operating element, the spiral resistance of the operating element 20 by using the spiral coil spring 34 and the operating resistance of the operating element 20 are held at an arbitrary position. To obtain frictional resistance.

That is, as conceptually shown in FIGS. 11A and 11B, the spiral coil spring 34 is compressed by applying a load from a state where no load is applied (see FIG. 11A). (See FIG. 11B).

As described above, the spiral coil spring 34
When the coil spring 34 is compressed, it is compressed so that the coil on the inner peripheral side enters the coil on the outer peripheral side of the coil spring 34, so that the coil spring 34 is more compressed than when a normal coil spring is used. The axial length can be significantly reduced, and the overall configuration can be made compact as in the case of using a disc spring.

Since the coil spring 34 is used, a mold is not required at the time of manufacture and no scrap is generated, so that the manufacturing cost can be reduced and the number of windings, strength and freedom of the winding spring manufacturing machine can be reduced. Since the change of the specification such as the length can be arbitrarily determined, it is possible to adjust the resistance for improving the operational feeling.

Here, a spiral coil spring 34 whose diameter is gradually reduced or enlarged is used, and the outer peripheral side end 34a of the coil spring 34 which comes into contact with the coil spring receiving portion 38c of the shaft disk portion 38 is used. Is bent in the height direction and is fitted in the fitting hole 22b of the first case member 22 which is a fixed system member. Therefore, even if the grip portion 112b of the operation element 20 is gripped and the lever 20a is rotated, The coil spring 34 is not twisted by the frictional resistance generated between the coil spring receiving portion 38c and the outermost peripheral portion 34c due to the rotation of the shaft disc portion 38, and the shaft disc portion 38 is always urged by a stable urging force. Can be pressed against the frictional resistance member 40.

Therefore, even when the operation member 20 is rotated, an excellent operation feeling with stable operation resistance can be obtained.

Further, since the support shaft 38b of the operation element 20 and the rotating shaft 108a of the volume 108 are connected by the shaft deviation absorbing member 42 without using a gear, there is almost no backlash, and the Child 20
It does not impair the operational feeling when operating.

Further, when the lever 20a is rotated by gripping the grip portion 112b of the operation element 20, even if a force (for example, a thrust force) other than the rotation force for rotating the rotation shaft 108a is applied, the shaft is not rotated. The linear protrusion 46 of the displacement absorbing member 42 slides in the fitting groove 38f, and the first projection 48 and the second projection of the axial displacement absorbing member 42 correspond to the tip 108b of the rotating shaft 108a.
By sliding on the top, the axis deviation due to the force other than the rotational force is substantially eliminated, and the force other than the rotational force is applied to the rotating shaft 108a.
Is not transmitted to Therefore, the durability of the volume 108 can be improved.

That is, the axial displacement between the support shaft 38b of the operator 20 and the rotation shaft 108a of the volume 108 is caused by the protrusion 38h
The linear protrusion 46 of the axial deviation absorbing member 42 slides in the fitting groove 38f, and the first projection 48 and the second projection of the axial deviation absorbing member 42 rotate until the contact with the first case member 22. The movement is substantially eliminated by sliding or moving on the distal end portion 108b of the moving shaft 108a, that is, the supporting shaft 38b of the operation element 20 and the rotating shaft 108 of the volume 108.
a, the thrust force caused by the axis deviation from the shaft 10a is not transmitted to the rotating shaft 108a of the volume 108.
Since no load other than the rotational force can be applied to the rotating shaft 108a of the shaft 8, the shaft shift absorbing member 42 can eliminate the shaft shift as described above. Therefore, mass productivity can be improved without requiring high precision.

Further, in the operating mechanism 10 of the operating element, since the spiral coil spring 34 is used as described above, the axial length of the coil spring 34 can be significantly reduced. The operation mechanism 10 of the operation element can be attached from the upper outside, and can be easily incorporated into the operation panel surface P.

Further, in the cover 28, FIG.
As shown in the plan view of (a), the U-shape is formed, so that the operation mechanism 10 can be assembled later on the operation panel surface P after the operation mechanism 10 is assembled from the upper outside, and the operator 20 In, the grip portion 112b can be integrally formed.

Further, a plurality of ridges 38g formed concentrically on the surface of the shaft disc portion 38 of the operation member 20 on the side of the support shaft 38b press against the frictional resistance member 40 formed of a soft material. Then, a groove is formed on the surface of the frictional resistance member 40 at a position facing the ridge 38g, and the shaft disc 38 slides along this groove, so that the sliding of the shaft disc 38 is performed. The moving position can be made constant, and a stable frictional force can be obtained.

Note that the tip of the rotating shaft 108a is not a D-cut, but as shown in FIGS. 12 (a) and 12 (b), a straight fitting groove into which the tip of a flathead screwdriver can be fitted. When the shaft offset absorbing member 42 is formed, instead of the first protrusion 48 and the second protrusion 50, the main body is set with a dimension so as to be slidably fitted in the fitting groove 108c. A linear ridge 52 is formed to project in the diameter direction of the portion 44.

Here, the linear ridge 46 and the linear ridge 52 are formed in a positional relationship orthogonal to each other.

In the operation mechanism of the operation device shown in FIGS. 12A and 12B, the same operation and effect as those of the operation mechanism 10 of the operation device can be obtained.

In the above-described embodiment, the shaft deviation absorbing member 42 is connected to the support shaft 38b and the rotation shaft 108.
In the operation of attaching the first projection 48 and the second projection 50 of the axial misalignment absorbing member 42,
08 D-cut end 108b of the rotating shaft 108a
Has been described, but the present invention is not limited to this, and the dimensional setting of each part is appropriately adjusted, and when the axis deviation absorbing member 42 is attached to the support shaft 38b and the rotating shaft 108a. In the work, first, the straight ridge 46 of the shaft deviation absorbing member 42 and the fitting groove 38f may be fitted and disposed to reduce backlash and improve workability.

The first protrusion 48 of the absorbing member 42 and the second
The protrusion 50 may be fitted to the distal end portion 108b, and the linear protrusion 46 may be fitted to the fitting groove 38f.

In the embodiment described above, the coil spring receiving portion 38c of the shaft disk portion 38 connected to the lever 20a is provided between the fixed second case member 24 and the frictional resistance member 40. And coil spring 3
Although the frictional force was generated by pressing with the urging force of No. 4, the present invention is not limited to this mode, and pressure is applied to the coil spring receiving portion by using a coil spring that gradually reduces or expands the diameter of the coil, and Any form may be used as long as the frictional resistance member generates a resistance to the moving lever in accordance with the pressure applied to the coil spring receiving portion.

For example, as shown in FIG. 13A, the coil is fixed to the outermost peripheral portion of the coil spring 34 between the coil spring 34 and the shaft disc 38 connected to the lever 20a. A coil spring receiving member 300 that is locked by the fixed first case member 22 and does not rotate with respect to the first case member together with the coil spring 34 by the outer peripheral end 34a of the spring 34 is installed. 300 and lever 20
a frictional resistance member 40 between the shaft disc portion 38 connected to
May be provided to generate a frictional resistance force on the rotation of the lever 20a.

As shown in FIG. 13 (b), the coil spring 34 is installed in the opposite direction to that of FIG. 13 (a), and the outer periphery of the coil spring 34 is attached to the shaft disc 38 connected to the lever 20a. The side end 34a is locked. Further, a coil spring receiving member 400 is fixed to the outermost peripheral portion of the coil spring 34, so that the coil spring receiving member 400 also rotates together with the coil spring 34 together with the lever 20a. Then, the frictional resistance member 40 is disposed between the coil spring receiving member 400 and the fixed first case member 22,
A frictional resistance force may be generated for the rotation of a.

Further, it goes without saying that the above-described various embodiments may be combined as a configuration for generating a frictional resistance force in the rotation of the lever 20a.

For example, as shown in FIG.
By combining the embodiment shown in FIG. 13B and the embodiment shown in FIG. 13A, in the configuration shown in FIG.
Further, a frictional resistance member 40 is provided between the fixed second case 24 and the shaft disk portion 38 connected to the lever 20a, and the lever 20a is biased by the coil spring 34.
May be pressed against the second case 24 side to generate a frictional resistance force on the rotation of the lever 20a.

In the structure shown in FIG. 11 (b), it is necessary to increase the strength of the coil spring 34 in order to increase the frictional resistance. In some cases, the sliding between the spring receiving portion 38c and the outermost peripheral portion 34c may not be smooth. However, if the configuration shown in FIG. 14 is used, it is not necessary to use the coil spring 34 having high strength. The set of the spring 34 does not occur, and the coil spring receiving member 300 and the outermost peripheral portion 34c
There is no need for sliding, so that smoothness is not lost.

In the above-described embodiment, two protrusions 38h are provided at the upper and lower portions on the silicone grease stopper 38d of the shaft disc portion 38 provided on the lever 20a, and the protrusion 38h is generated on the rotation shaft 108a. Although a force (thrust force) other than the rotational force is received, the present invention is not limited to this mode. Four protrusions 38h at the top, bottom, left and right are provided to receive the force for twisting the grip portion 112b of the operation element 20. Of course, it may be possible.

In the above-described embodiment, the specifications such as the number of turns, strength, and free length are changed at the time of manufacturing the wound spring, and the frictional resistance is adjusted to improve the operational feeling. However, the first case member 22 and the second
A spacer may be provided at a portion where the coil spring 34 is attached to the case member 24, or the inner peripheral end 3 of the coil spring 34 may be provided.
By arranging a spacer at the locking portion of the first case member 4b with the first case member 22, the frictional resistance force for improving the operational feeling may be adjusted. In addition, the compression length of the coil spring 34 is changed by installing an adjusting mechanism such as a screw at an engagement portion between the inner peripheral end 34b of the coil spring 34 and the first case member 22 to thereby improve the operational feeling. Adjustment of the frictional resistance for improvement may be performed.

Further, in the above-described embodiment, the case where the operation mechanism of the operator according to the present invention is used in a television special video effect device has been described. However, the present invention is not limited to this. Of course, the present invention may be applied to various devices such as a device or a sound effect device.

[0091]

Since the present invention is constructed as described above, the manufacturing cost can be reduced, and the overall length can be reduced by suppressing the axial length of the spring. Moreover, there is an excellent effect that the operational feeling when the operator is rotated can be prevented from being impaired.

[Brief description of the drawings]

FIG. 1 is a partial cross-sectional view of a conceptual configuration of an operation mechanism of an operation element that applies frictional resistance to the operation element using a conventional spring.

FIG. 2 is a partial cross-sectional view of a conceptual configuration of an operation mechanism of an operator that applies frictional resistance to the operator using a conventional spring.

FIG. 3 is a schematic configuration perspective view showing an example of an embodiment of an operation mechanism of an operator according to the present invention.

FIG. 4 is a schematic exploded perspective view showing an example of an embodiment of an operation mechanism of an operator according to the present invention.

FIG. 5 is a configuration explanatory view showing a cover of an operation element;
(A) is a plan view, (b) is a front view, (c)
Is a rear view, (d) is a right side view, (e) is a cross-sectional view taken along line EE of (a), and (f) is (a)
FIG. 2 is a cross-sectional view taken along line FF of FIG.
It is sectional drawing by the G line.

FIG. 6 is a configuration explanatory view showing a coil spring;
(A) is a plan view and (b) is a front view.

FIGS. 7A and 7B are explanatory diagrams showing a configuration of an operation element, wherein FIG. 7A is a front view, FIG. 7B is a left side view, FIG. 7C is a partially broken right side view, and FIG. It is sectional drawing by the DD line of (b), (e) is an E section enlarged view of (d), (f)
(E) is an enlarged view of the F section.

FIG. 8 is a configuration explanatory view showing an axial deviation absorbing member;
(A) is a right side view, (b) is a front view,
(C) is a rear view, (d) is a plan view, and (e)
FIG. 6B is a cross-sectional view taken along line EE of FIG.

FIG. 9 is a configuration explanatory view showing a connection relationship between an axis deviation absorbing member, a rotation axis of a volume, and a support axis of an operation element;
(A) is a perspective view showing a connection relationship between the axis deviation absorbing member and the rotating shaft of the volume, (b) is a view taken in the direction of arrow B in (a), and (c) is an operation with the axis deviation absorbing member. It is a perspective view which shows the connection relationship with the support shaft of a child.

FIG. 10 is a view of the second case member as viewed from an arrow X in FIG. 4;

FIGS. 11A and 11B are conceptual configuration sectional views showing an assembled state of the coil spring. FIG. 11A shows a state in which no load is applied to the coil spring, and FIG. 11B shows a state in which the coil spring is compressed by applying a load. This shows the assembled state.

FIG. 12 shows the operation mechanism of the operating element according to the present invention in a case where the tip of the rotating shaft is not a D-cut but has a linear fitting groove formed so that the tip of a flathead screwdriver can be fitted. FIG. 8A is a perspective view showing a modification example, and FIG. 9A is a perspective view showing a connection relationship between an axis deviation absorbing member and a rotating shaft of a volume;
(B) is a perspective view showing a connection relationship between the axis deviation absorbing member and a support shaft of the operation element.

FIGS. 13 (a) and 13 (b) are conceptual configuration sectional views showing another example of the embodiment of the operating mechanism of the operating element according to the present invention.

FIG. 14 is a conceptual cross-sectional view showing another example of the embodiment of the operating mechanism of the operating element according to the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Operation mechanism of operation element 18 Case 20 Operation element 20a Lever 22 First case member 22b Fitting hole 22c Fitting hole 24 Second case member 34 Coil spring 34a Outer end 34b Inner end 34c Outermost end 38 Shaft Disc portion 38b Support shaft 38c Coil spring receiving portion 38d Silicone grease stopping portion 38f Fitting groove 38g Protrusion 38h Protrusion 40 Friction resistance member 42 Axis shift absorbing member 44 Main body 46 Straight protrusion 48 First protrusion 50 Second protrusion 108 Volume 108a Rotating shaft 108b Tip

Claims (5)

[Claims] An operating member having a support shaft rotatably supported by a fixed member; a coil spring receiving member integrally provided with the operating member; and one surface of the coil spring receiving member. A fixed-system frictional resistance member disposed opposite to the barrel friction surface; and the coil-spring receiving surface disposed between the coil-system receiving surface, which is the other surface of the coil-spring receiving member, and the fixed-system member. And a coil spring that urges the coil spring receiving member by contacting the coil spring receiving member to press the coil spring receiving member against the frictional resistance member. The coil spring has a coil diameter that is sequentially reduced or enlarged. And has a predetermined height in the direction orthogonal to the coil winding direction to apply a biasing force in the direction orthogonal to the coil winding direction. Operation mechanism of than is operator. 2. An operation member having a support shaft rotatably supported by a fixed system member, a plate-shaped member integrally disposed on the support shaft, and a support member supported by the support shaft. A coil spring receiving member that is locked so as not to rotate with respect to the fixed system member and is disposed to face the plate member; one surface of the plate member and one of the coil spring receiving members A frictional resistance member disposed between the coil spring receiving surface and the fixed system member, the other surface of the coil spring receiving member being in contact with the coil spring receiving surface. A coil spring for urging the coil spring receiving member to press the coil spring receiving member against the plate-like member via the frictional resistance member, wherein the coil spring has a coil diameter sequentially reduced. Or an operator which is formed in a spiral shape so as to expand and has a predetermined height in a direction perpendicular to the coil winding direction in order to apply a biasing force in a direction perpendicular to the coil winding direction. Operation mechanism. 3. An operating element having a support shaft rotatably supported by a fixed system member, a plate-shaped member integrally provided with the support shaft, and a support member supported by the support shaft. A coil spring receiving member that is locked so as not to rotate with respect to the plate-shaped member, and that is disposed to face the plate-shaped member; and that is disposed to face a friction surface that is one surface of the coil spring receiving member. The fixed-system frictional resistance member is disposed between one surface of the plate-shaped member and the coil spring receiving surface, which is the other surface of the coil spring receiving member, and is in contact with the coil spring receiving surface. A coil spring for urging the coil spring receiving member to press the coil spring receiving member against the frictional resistance member, wherein the coil spring has a coil whose diameter gradually decreases or increases. A spiral be formed, the operating mechanism of the operating element is intended with a predetermined height in a direction perpendicular to the winding direction of the coil to provide a biasing force in a direction perpendicular to the winding direction of the coil. 4. The operating mechanism for an operating element according to claim 1, wherein at least one end of the coil spring is locked to the fixed system member or the plate-shaped member. The operation mechanism of the operation element. 5. The operating mechanism for an operating element according to claim 1, wherein an outer periphery of a contact portion of the coil spring is provided on the coil spring receiving surface of the coil spring receiving member. An operation mechanism of an operation element having a protruding portion formed on the portion.