JP6458681B2 - Handle device - Google Patents

Description

  The present invention relates to a handle device.

  The rotary operation dial device disclosed in the following Patent Document 1 includes a dial assembled to a rotation shaft of a flow rate adjusting valve. This rotary operation dial device includes a taper fitting portion between the two so that the tip end portion of the rotating shaft and the boss portion of the dial portion into which the bush is press-fitted are taper-engaged.

Japanese Utility Model Publication No. 6-42265

  An operation target device (for example, a valve device) having a rotation shaft is arranged inside the partition wall, a handle is attached to the rotation shaft protruding outside the partition wall, and the operation target device can be operated by turning the handle from the outside of the partition wall. Such a structure is widely used. In this structure, since the rotating shaft protrudes to the outside of the partition wall, the protruding length of the rotating shaft is longer than that of the device disclosed in Patent Document 1. For this reason, the handle tends to tilt when the handle is turned. When the handle is tilted, bending stress is generated on the rotating shaft. When the rotating shaft is made of resin or the like, if the excessive bending stress is applied, the rotating shaft may be damaged. Even in the case of a metal rotating shaft, there is a possibility that bending (plastic deformation) may remain, making it unusable.

  The present invention has been made to solve the above-described problems, and an object of the present invention is to provide a handle device that can suppress bending stress generated in a rotating shaft.

The handle device according to the present invention includes a partition wall having a shaft insertion hole, a main body portion disposed inside the partition wall, and a rotating shaft protruding from the main body portion through the shaft insertion hole to the outside of the partition wall. And a handle body disposed outside the partition wall and attached to the rotation shaft, the handle body having a back surface facing the outer surface of the partition wall and projecting from the back surface of the handle body toward the outer surface of the partition wall In the handle device that is provided with a protrusion or a protrusion that protrudes from the outer surface of the partition wall toward the back surface of the handle body, the protrusion is locally formed in the circumferential direction about the rotation axis. When viewed from a direction parallel to the rotation axis, the center of the rotation axis is in a virtual polygon formed by sequentially connecting the centers of each of the three or more protrusions with a straight line. It is what is located.
Further, the handle device according to the present invention includes an operation having a partition having a shaft insertion hole, a main body portion disposed inside the partition, and a rotating shaft protruding from the main body portion through the shaft insertion hole to the outside of the partition wall. A target device, and a handle body disposed outside the partition wall and attached to the rotating shaft, the handle body having a back surface facing the outer surface of the partition wall, from the back surface of the handle body toward the outer surface of the partition wall In the handle device provided with a projecting convex portion or a projecting portion projecting from the outer surface of the partition wall toward the rear surface of the handle body, the convex portion is formed locally in the circumferential direction around the rotation axis. Has a screw insertion hole, is attached from the outside of the partition wall through the screw insertion hole, has a fixing screw for fixing the operation target device and the partition wall, and when viewed from a direction parallel to the rotation axis, And convex Distance between the center of, than the distance between a center of the fixing screw of the rotating shaft, is larger.
Further, the handle device according to the present invention includes an operation having a partition having a shaft insertion hole, a main body portion disposed inside the partition, and a rotating shaft protruding from the main body portion through the shaft insertion hole to the outside of the partition wall. A target device, and a handle body disposed outside the partition wall and attached to the rotating shaft, the handle body having a back surface facing the outer surface of the partition wall, from the back surface of the handle body toward the outer surface of the partition wall In the handle device provided with a projecting convex portion or a projecting portion projecting from the outer surface of the partition wall toward the rear surface of the handle body, the convex portion is formed locally in the circumferential direction around the rotation axis. Has a screw insertion hole, is attached through the screw insertion hole from the outside of the partition wall, includes a fixing screw for fixing the operation target device and the partition wall, and the head of the fixing screw forms a convex portion.

  According to the handle device of the present invention, it is possible to suppress bending stress generated in the rotating shaft.

FIG. 3 is a side sectional view showing the handle device according to the first embodiment. FIG. 3 is a perspective view of a handle body included in the handle device according to the first embodiment. It is a perspective view of the valve apparatus with which the handle device of Embodiment 1 is provided. 1 is a front view of a hot water storage device including the handle device according to Embodiment 1. FIG. FIG. 10 is a diagram for explaining another configuration example of a convex portion in the handle device according to the first embodiment. FIG. 10 is a side cross-sectional view showing the handle device according to the second embodiment. FIG. 10 is a side cross-sectional view showing the handle device according to the third embodiment.

  Hereinafter, embodiments will be described with reference to the drawings. Elements common to the drawings are denoted by the same reference numerals, and redundant description is simplified or omitted. Note that the number, arrangement, orientation, shape, and size of the devices, instruments, and components in the present invention are not limited to the number, arrangement, orientation, shape, and size shown in the drawings in principle. In addition, the present invention can include all combinations of configurations that can be combined among the configurations described in the following embodiments.

Embodiment 1 FIG.
FIG. 1 is a side sectional view showing a handle device 1A according to the first embodiment. As shown in FIG. 1, the handle device 1 </ b> A according to the present embodiment includes a handle body 2, a valve device 3, and a partition wall 4. The valve device 3 includes a housing 3a and a rotating shaft 3b. The housing 3a constitutes the outline of the main body portion of the valve device 3. The rotating shaft 3b protrudes from the end surface 3d of the housing 3a to the outside of the housing 3a. Although not shown, a valve body (for example, a ball valve body) for switching the state of the flow path is rotatably installed inside the housing 3a. The rotating shaft 3b is connected to the valve body inside the housing 3a. By rotating the rotating shaft 3b, the valve body rotates and the state of the flow path is switched. A screw hole 3c having a female screw is formed in the housing 3a. The screw hole 3c opens in the end surface 3d of the housing 3a. The screw hole 3c is formed in parallel with the rotation shaft 3b. The screw holes 3c are formed at a plurality of locations.

  A housing 3 a (main body portion) of the valve device 3 is disposed inside the partition wall 4. In FIG. 1, the left side of the partition wall 4 is the inside of the partition wall 4, and the right side of the partition wall 4 is the outside of the partition wall 4. The end surface 3d of the housing 3a is opposed to and in contact with the inner surface of the partition wall 4. The partition wall 4 has a shaft insertion hole 4a and a screw insertion hole 4b. The rotating shaft 3b protrudes outside the partition wall 4 through the shaft insertion hole 4a. The screw insertion holes 4 b are formed at a plurality of locations corresponding to the positions of the screw holes 3 c of the valve device 3. The fixing screw 5 is attached to the screw hole 3c of the valve device 3 from the outside of the partition wall 4 through the screw insertion hole 4b. The housing 3 a of the valve device 3 is fixed to the partition wall 4 by tightening the fixing screw 5. The head of the fixing screw 5 forms a protrusion (convex portion) that protrudes from the outer surface of the partition wall 4.

  The handle body 2 is disposed outside the partition wall 4. The handle body 2 is attached to the rotation shaft 3b. The handle body 2 is fixed to the rotating shaft 3b and rotates integrally with the rotating shaft 3b. By rotating the handle body 2, the state of the flow path of the valve device 3 is switched. The valve device 3 in the present embodiment is an example of an operation target device that is an operation target operated by the handle body 2. The operation target device in the present invention is not limited to the valve device 3.

  The handle body 2 has a back surface 2 a that faces the outer surface of the partition wall 4. The handle device 1 </ b> A of the present embodiment includes a convex portion 6 that protrudes from the back surface 2 a of the handle body 2 toward the outer surface of the partition wall 4. In the present embodiment, the convex portion 6 is formed integrally with the handle body 2. The convex portion 6 may be formed of a separate part attached to the handle body 2. The convex part 6 is locally formed in the circumferential direction centering on the rotating shaft 3b. In the configuration shown in FIG. 1, two convex portions 6 having different circumferential positions around the rotation shaft 3 b are provided. The number of the convex portions 6 is not limited to two, and may be one or three or more.

  The convex portion 6 provided on the handle main body 2 faces the outer surface of the partition wall 4. When the handle body 2 is not touched, the convex portion 6 provided on the handle body 2 does not contact the outer surface of the partition wall 4. The distance between the convex portion 6 provided on the handle body 2 and the outer surface of the partition wall 4 is α. When the handle main body 2 is not touched, the distance α is larger than zero.

  When the handle body 2 is operated by hand, the convex portion 6 provided on the handle body 2 may come into contact with the outer surface of the partition wall 4. When the force vector applied to the handle body 2 from the hand includes a component orthogonal to the rotation shaft 3b, the rotation shaft 3b may be deformed so as to bend (bend). The handle body 2 is tilted by being deformed so that the rotating shaft 3b bends. When the handle body 2 is inclined, the distance α between the convex portion 6 and the outer surface of the partition wall 4 changes. There is a possibility that the convex portion 6 contacts the outer surface of the partition wall 4 by tilting the handle body 2.

  Depending on how the person who operates the handle main body 2 by hand (how to apply a force to turn the handle main body 2, how strong the turning force, etc.), the rotary shaft 3b is deformed to bend and the handle main body 2 is inclined. There is a case. According to the present embodiment, when the handle body 2 is tilted, the protrusion 6 provided on the handle body 2 comes into contact with the outer surface of the partition wall 4 so that the handle body 2 is reliably prevented from tilting further. it can. Therefore, it can suppress reliably that the rotating shaft 3b deform | transforms any more. Therefore, it can suppress reliably that the rotating shaft 3b is damaged, or plastic deformation (bending) remains in the rotating shaft 3b.

  The convex portion 6 is formed at a position where it does not interfere with a protrusion (for example, the head of the fixing screw 5) present on the outer surface of the partition wall 4 when the handle body 2 is rotated. When the rotatable range of the handle body 2 is limited to a specific angle, the convex portion 6 does not hit the projection when the handle body 2 is rotated within the rotatable range. The part 6 should just be arrange | positioned.

  In the present embodiment, the following effects are obtained by forming the convex portions 6 locally in the circumferential direction around the rotation shaft 3b. As a first effect, the convex portion 6 can be easily arranged at a position where the convex portion 6 does not hit the projection when the handle body 2 is rotated. As a second effect, when the handle body 2 is tilted and the convex portion 6 comes into contact with the outer surface of the partition wall 4, the contact area can be reduced. For this reason, when the convex part 6 provided in the handle main body 2 contacts the outer surface of the partition 4, the frictional force which acts between both can be made small. Therefore, when the convex part 6 contacts the outer surface of the partition 4, it can suppress that a torque required in order to rotate the handle body 2 increases. That is, even when the convex portion 6 provided on the handle main body 2 comes into contact with the outer surface of the partition wall 4, it is possible to suppress an increase in the operating force required to rotate the handle main body 2, thereby obtaining good operability. It is done.

  In the handle device 1A of the present embodiment, when the convex portion 6 is brought into contact with the outer surface of the partition wall 4 by applying a force to the handle body 2, the bending stress generated in the rotating shaft 3b is within the elastic limit. It is configured as follows. By setting the distance α between the convex portion 6 and the outer surface of the partition wall 4 without touching the handle body 2 to an appropriate distance, the configuration can be easily realized. According to this configuration, the following effects can be obtained. Even when the handle body 2 is tilted when the handle body 2 is operated, the bending stress generated in the rotating shaft 3b can be more reliably suppressed from exceeding the elastic limit. Therefore, it can suppress more reliably that the rotating shaft 3b is damaged, or plastic deformation (bending) remains in the rotating shaft 3b.

  FIG. 2 is a perspective view of the handle body 2 provided in the handle device 1A of the first embodiment. FIG. 2 is a view of the handle body 2 viewed from an oblique direction opposite to the back surface 2 a of the handle body 2. As shown in FIG. 2, the handle body 2 includes a center portion 2c, a first finger hook portion 2d, and a second finger hook portion 2e. The central portion 2c is located concentrically with the rotating shaft 3b. The shape of the central portion 2c is generally cylindrical. The first finger hook portion 2d protrudes radially outward from the center portion 2c. The shape of the first finger-hanging portion 2d is generally a plate shape. The second finger hanging portion 2e protrudes radially outward from the central portion 2c. The shape of the second finger-hanging portion 2e is generally a plate shape. The second finger hook portion 2e protrudes in a direction different from that of the first finger hook portion 2d. The angle between the protruding direction of the first finger hanging portion 2d and the protruding direction of the second finger hanging portion 2e is an obtuse angle. The protruding length of the first finger hanging portion 2d is longer than the protruding length of the second finger hanging portion 2e.

  A sealing member for preventing fluid leakage is in close contact with the valve body rotatably installed in the housing 3a of the valve device 3. When rotating the rotating shaft 3b, the frictional force acting between the valve body and the seal member becomes a resistance. Therefore, a certain amount of torque is required to rotate the rotating shaft 3b. In the present embodiment, when the handle body 2 is operated, the handle body 2 can be easily turned by placing a finger on the first finger hook portion 2d and the second finger hook portion 2e. The handle main body 2 can be rotated with a light force by the lever principle because the first finger hook portion 2d and the second finger hook portion 2e protrude from the center portion 2c. In the present embodiment, the handle body 2 includes two finger hanging portions (the first finger hanging portion 2d and the second finger hanging portion 2e), but the number of the finger hanging portions included in the handle body 2 is one or three or more. But it ’s okay.

  FIG. 3 is a perspective view of the valve device 3 provided in the handle device 1A of the first embodiment. As shown in FIG. 3, the valve device 3 includes a first port 3e, a second port 3f, and a third port 3g. The first port 3e, the second port 3f, and the third port 3g protrude from the housing 3a in different directions. The first port 3e, the second port 3f, and the third port 3g protrude in a direction different from the rotation shaft 3b.

  Next, an example of an application target of the present invention will be described. FIG. 4 is a front view of hot water storage device 100 provided with handle device 1A of the first embodiment. The hot water storage device 100 includes a housing 110 and a hot water storage tank (not shown) disposed in the housing 110. FIG. 4 is a front view of the vicinity of the bottom of the housing 110. The handle device 1 </ b> A is installed near the bottom of the housing 110. The main body portion (housing 3 a) of the valve device 3 of the handle device 1 </ b> A is disposed inside the housing 110. The handle body 2 of the handle device 1 </ b> A is disposed outside the housing 110. A part of the wall forming the housing 110 corresponds to the partition wall 4 of the handle device 1A. A pipe (not shown) connected to the lower part of the hot water storage tank is connected to the valve device 3 of the handle device 1A. The valve device 3 of the handle device 1A functions as, for example, a drain valve that drains water in the hot water storage tank. When the use of the hot water storage device 100 is stopped or when the hot water storage device 100 is repaired, water in the hot water storage tank may be drained. When the water in the hot water storage tank is drained, the drain valve (valve device 3) is opened by turning the handle body 2 so that the water in the hot water storage tank can be drained. The hot water storage device 100 described above is an example of a device to which the handle device 1A is applied. The application target of the present invention is not limited to the hot water storage device 100.

  FIG. 5 is a view for explaining another configuration example of the convex portion 6 in the handle device 1A of the first embodiment. FIG. 5 is a view of the handle body 2 of the handle device 1A as viewed from the front side. In the example shown in FIG. 5, three convex portions 6 are provided on the handle body 2. In the example shown in FIG. 5, the shape of the convex part 6 when viewed from a direction parallel to the rotation shaft 3b is a circle. However, in the present invention, the shape of the convex portion 6 when viewed from a direction parallel to the rotation shaft 3b is not limited to a circle, and may be any shape such as a polygon, an ellipse, and a sector.

  As shown in FIGS. 1 and 5, in the present embodiment, by providing the plurality of convex portions 6, the handle body 2 can be more reliably prevented from being tilted when the handle body 2 is operated. The bending stress generated in the shaft 3b can be more reliably suppressed.

  Moreover, in this Embodiment, each convex part 6 is arrange | positioned so that the following conditions may be satisfied. When viewed from a direction parallel to the rotation shaft 3b, the distance between the center of the rotation shaft 3b and the center of the convex portion 6 is larger than the distance between the center of the rotation shaft 3b and the center of the fixing screw 5. When the handle main body 2 is tilted and the convex portion 6 comes into contact with the outer surface of the partition wall 4, the moment the handle main body 2 receives from the convex portion 6 is larger as the convex portion 6 is located farther from the center of the rotation shaft 3b. That is, as the convex portion 6 is located farther from the center of the rotation shaft 3b, the moment at which the convex portion 6 suppresses the tilt of the handle body 2 acts more greatly. For this reason, by satisfy | filling said conditions, the handle | steering-body main body 2 can suppress inclination more reliably, and can suppress more reliably the bending stress which generate | occur | produces in the rotating shaft 3b.

  In the example shown in FIG. 5, the convex part 6 which protrudes from the back surface 2a of the 1st finger-hanging part 2d of the handle body 2 is provided. The convex portion 6 is located near the tip of the first finger hanging portion 2d. By providing the convex portion 6 in the first finger-hanging portion 2d, the distance between the convex portion 6 and the center of the rotating shaft 3b can be particularly increased. For this reason, the inclination of the handle body 2 can be more reliably suppressed, and the bending stress generated in the rotating shaft 3b can be more reliably suppressed. In particular, in the present embodiment, the first finger hook portion 2d having the maximum protrusion length from the center of the rotating shaft 3b is provided with the convex portion 6, so that the above-described effect is more remarkably exhibited. In addition, you may provide the convex part 6 in the 2nd finger hook part 2e whose protrusion length is small compared with 2d of 1st finger hook parts. Even in that case, an effect similar to the above can be obtained.

  In the example shown in FIG. 5, the three convex portions 6 are arranged so as to satisfy the following condition. When viewed from a direction parallel to the rotation axis 3b, the center of the rotation axis 3b is located in a virtual polygon 200 formed by sequentially connecting the centers of the three convex portions 6 with straight lines. That is, the polygon 200 is a figure formed by sequentially connecting the centers of two adjacent convex portions 6 among the three convex portions 6 with a virtual straight line. By satisfying such conditions, it is possible to more reliably prevent the handle body 2 from being tilted regardless of the direction in which the force is applied to the handle body 2 during operation of the handle body 2. The bending stress generated in 3b can be more reliably suppressed.

  Note that even when four or more convex portions 6 are provided, when viewed from a direction parallel to the rotation shaft 3b, a virtual formed by sequentially connecting the centers of the four or more convex portions 6 with a straight line. By configuring so that the center of the rotation shaft 3b is located in the polygon, the effect similar to the above can be obtained.

  As described above, each convex portion 6 is locally formed in the circumferential direction around the rotation shaft 3b. In this regard, it is preferable that each convex portion 6 satisfies the following conditions. When viewed from a direction parallel to the rotating shaft 3b, an angle formed by two virtual straight lines passing through the center of the rotating shaft 3b and in contact with the convex portion 6 is defined as β (see FIG. 5). The angle β is preferably 90 ° or less. By setting the angle β to a value in such a range, the frictional force acting between the convex portion 6 provided on the handle main body 2 when contacting the outer surface of the partition wall 4 can be sufficiently reduced. It can suppress more reliably that the operating force required in order to rotate the main body 2 increases. Further, the angle β is preferably 10 ° or more, and more preferably 15 ° or more. By setting the angle β to a value in such a range, the strength of the convex portion 6 can be sufficiently increased, so that the tilt of the handle body 2 can be more reliably suppressed.

Embodiment 2. FIG.
Next, the second embodiment will be described with reference to FIG. 6. The description will focus on the differences from the first embodiment described above, and the description of the same or corresponding parts will be simplified or omitted. FIG. 6 is a side sectional view showing the handle device 1B of the second embodiment. As shown in FIG. 6, the convex portion 6 included in the handle device 1 </ b> B of the second embodiment projects from the outer surface of the partition wall 4 toward the back surface 2 a of the handle body 2. In the second embodiment, the convex portion 6 is formed integrally with the partition wall 4. The convex portion 6 may be formed of a separate part attached to the partition wall 4. The convex portion 6 faces the back surface 2 a of the handle body 2. When the handle body 2 is not touched, the convex portion 6 does not contact the back surface 2 a of the handle body 2. The distance between the convex part 6 and the back surface 2a of the handle body 2 is α. When the handle main body 2 is not touched, the distance α is larger than zero.

  When the handle body 2 is operated by hand, the convex portion 6 may come into contact with the back surface 2 a of the handle body 2. When the handle body 2 is tilted during operation, the convex portion 6 may come into contact with the back surface 2a of the handle body 2. In the second embodiment, when the handle body 2 is tilted, the protrusion 6 comes into contact with the back surface 2a of the handle body 2 so that the handle body 2 can be reliably prevented from tilting further. Therefore, it can suppress reliably that the rotating shaft 3b deform | transforms any more. Therefore, it can suppress reliably that the rotating shaft 3b is damaged, or plastic deformation (bending) remains in the rotating shaft 3b. Further, in the second embodiment, the same effects as those of the first embodiment can be obtained by forming the convex portions 6 locally in the circumferential direction around the rotation shaft 3b.

Embodiment 3 FIG.
Next, the third embodiment will be described with reference to FIG. 7. The description will focus on the differences from the first and second embodiments described above, and the description of the same or corresponding parts will be simplified or omitted. To do. FIG. 6 is a side sectional view showing the handle device 1C according to the third embodiment. As shown in FIG. 7, the convex portion 6 provided in the handle device 1 </ b> C of the third embodiment projects from the outer surface of the partition wall 4 toward the back surface 2 a of the handle body 2. In the third embodiment, the head of the fixing screw 5 forms the convex portion 6. In the third embodiment, the same effect as in the second embodiment described above can be obtained. Furthermore, according to the third embodiment, since the convex portion 6 can be formed by the head of the fixing screw 5 that fixes the valve device 3 to the partition wall 4, the number of parts can be reduced and the manufacturing process can be simplified.

  In the second or third embodiment described above, when three or more convex portions 6 are provided, the center of each of the three or more convex portions 6 is a straight line when viewed from a direction parallel to the rotation shaft 3b. It is desirable that the center of the rotation shaft 3b be positioned in a virtual polygon formed by sequentially connecting. According to this configuration, an effect similar to the effect described in the first embodiment can be obtained. For example, by applying the positions of the fixing screws 5 shown in FIG. 5 to the third embodiment, the positions of the three convex portions 6 formed by the heads of the three fixing screws 5 can satisfy the above configuration.

1A, 1B, 1C Handle device, 2 Handle body, 2a Back surface, 2c Center portion, 2d First finger hanging portion, 2e Second finger hanging portion, 3 Valve device, 3a Housing, 3b Rotating shaft, 3c Screw hole, 3d End surface, 3e 1st port, 3f 2nd port, 3g 3rd port, 4 Bulkhead, 4a Shaft insertion hole, 4b Screw insertion hole, 5 Fixing screw, 6 Convex part, 100 Hot water storage device, 110 Housing, 200 Polygon

Claims (6)

A partition wall having a shaft insertion hole;
An operation target device having a main body portion disposed on the inner side of the partition wall, and a rotation shaft protruding from the main body portion through the shaft insertion hole to the outside of the partition wall;
A handle body disposed outside the partition wall and attached to the rotating shaft;
With
The handle body has a back surface facing the outer surface of the partition wall,
A convex portion projecting from the back surface of the handle body toward the outer surface of the partition wall, or a convex portion projecting from the outer surface of the partition wall toward the back surface of the handle body,
In the handle device , the convex portion is formed locally in the circumferential direction around the rotation axis ,
Comprising three or more of the convex portions,
When viewed from a direction parallel to the rotation axis, the center of the rotation axis is located in a virtual polygon formed by sequentially connecting the centers of the three or more protrusions with straight lines. Handle device. A partition wall having a shaft insertion hole;
An operation target device having a main body portion disposed on the inner side of the partition wall, and a rotation shaft protruding from the main body portion through the shaft insertion hole to the outside of the partition wall;
A handle body disposed outside the partition wall and attached to the rotating shaft;
With
The handle body has a back surface facing the outer surface of the partition wall,
A convex portion projecting from the back surface of the handle body toward the outer surface of the partition wall, or a convex portion projecting from the outer surface of the partition wall toward the back surface of the handle body,
In the handle device , the convex portion is formed locally in the circumferential direction around the rotation axis ,
The partition wall has a screw insertion hole,
It is attached from the outside of the partition wall through the screw insertion hole, and includes a fixing screw for fixing the operation target device and the partition wall,
When viewed from a direction parallel to the rotation shaft, the distance between the center of the rotation shaft and the center of the convex portion is larger than the distance between the center of the rotation shaft and the center of the fixing screw. . A partition wall having a shaft insertion hole;
An operation target device having a main body portion disposed on the inner side of the partition wall, and a rotation shaft protruding from the main body portion through the shaft insertion hole to the outside of the partition wall;
A handle body disposed outside the partition wall and attached to the rotating shaft;
With
The handle body has a back surface facing the outer surface of the partition wall,
A convex portion projecting from the back surface of the handle body toward the outer surface of the partition wall, or a convex portion projecting from the outer surface of the partition wall toward the back surface of the handle body,
In the handle device , the convex portion is formed locally in the circumferential direction around the rotation axis ,
The partition wall has a screw insertion hole,
It is attached from the outside of the partition wall through the screw insertion hole, and includes a fixing screw for fixing the operation target device and the partition wall,
A handle device in which a head of the fixing screw forms the convex portion. The handle device according to claim 2 or 3 , comprising a plurality of the convex portions. The handle body includes a central portion that is concentric with the rotation shaft, and a finger-hanging portion that protrudes radially outward from the central portion,
The handle device according to any one of claims 1 to 3 , further comprising the convex portion projecting from the back surface of the finger hanging portion toward the outer surface of the partition wall. Of claims 1 to 5, wherein the generated rotational axis bending stress is within the elastic limit when the convex portion on a surface opposed to the convex portion is a force with respect to said handle body so as to contact The handle device according to any one of the above.

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