JP3841467B2 - Selector switch and selector pushbutton switch - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a selector switch that operates a contact portion of an internal switch by a rotation operation of the handle, and selects an operation state of the contact portion of the internal switch in an operation state selected by the rotation operation of the handle, and a push button. The present invention relates to a selector pushbutton switch that operates a contact portion of the switch by a pressing operation.
[0002]
[Prior art]
As an operation switch attached to the operation panel, a selector switch that operates the contact portion of the internal switch by rotating the handle, or an operation state of the contact portion of the internal switch in the operation state selected by the rotating operation of the handle is selected. In addition, there is a selector pushbutton switch that operates the contact portion of the switch by pressing the pushbutton. In this way, the switch that rotates the handle needs to be configured so that the main body can be securely attached to the operation panel and the main body can be removed from the operation panel in consideration of switch failure or function change. is there. Therefore, as a conventional selector pushbutton switch for rotating the handle, as shown in FIG. 5, the switch body 61 is passed through the mounting hole 52 formed in the operation panel 51 from the rear side, and the operation panel 51 is adjusted to the adjustment ring. In some cases, the handle 64 is attached to the spring receiver 69 exposed on the front surface side of the main body 61 while being sandwiched between the 62 and the attachment cap 63. In this selector push button switch, the operation shaft 65 and the operation cam 66 are also rotated with the rotation of the handle 64, and the displacement of the operation cam 66 by the axial displacement of the operation shaft 65 and the operation cam 66 with the pressing of the push button 67 is performed. The pressing plate 68 operates the contact portion of the switch (not shown) in a state corresponding to the rotational position.
[0003]
As described above, the handle 64 is attached to the spring receiver 69 exposed on the front surface of the main body 61. On the outer peripheral surface of the spring receiver 69, an axial groove portion opened on the front surface side of the operation shaft 65 and a circumferential groove portion continuous therewith are formed. On the inner peripheral surface of the handle 64, the spring receiver 69 is provided. A protrusion that engages with the groove is formed. Further, an elastic piece 70 having one end opened is formed on the outer peripheral surface of the spring receiver 69. On the inner peripheral surface of the handle 64, the protrusion of the handle 64 is engaged with the circumferential groove of the spring receiver 69. In this case, a recess 71 is formed in which one end of the elastic piece 70 of the spring receiver 69 is engaged. With these configurations, when the handle 64 is attached to the spring receiver 69, the handle 64 is externally fitted to the spring receiver 69 with the protrusion of the handle 64 facing the axial groove of the spring receiver 69. The protrusion of the handle 64 is rotated to move in the circumferential groove portion of the spring receiver 69. In this state, one end of the elastic piece 70 of the spring receiver 69 is engaged with the concave portion 71 of the handle 64, whereby the rotation of the handle 64 in the reverse direction is restricted, and the attachment state of the handle 64 to the spring receiver 69 is maintained. .
[0004]
When the handle 64 is removed from the spring receiver 69 in the event of a switch failure or function change, a tool is inserted into the hole 72 formed in the outer peripheral surface of the handle 64 and one end of the elastic piece 70 is pressed. Then, the restriction of the rotation of the handle 64 in the reverse direction is released so that one end of the elastic piece 70 does not engage with the recess 71. By rotating the handle 64 in the reverse direction while maintaining the pressed state of the elastic piece 70 by this tool, the protrusion moves from the circumferential groove to the axial groove, and the handle 64 is pulled out from the spring receiver 69. Can do. In this way, after the handle 64 is separated from the main body 61 on the front side of the operation panel 51, the holding state of the operation panel 51 by the mounting cap 63 and the adjustment ring 62 is released, and the main body 61 is removed from the operation panel 51.
[0005]
[Problems to be solved by the invention]
However, in the conventional selector switch shown in FIG. 5, the handle is attached from the front side of the operation panel to the operation axis in the main body inserted from the back side into the mounting hole of the operation panel. Considering when removing from the operation panel, the user must be able to attach and remove the handle to the main body relatively easily by operating the front side of the operation panel, and the handle must be attached in an incomplete state. Cannot be reliably prevented, and the safety of the device using the switch cannot be ensured. In addition to the operation shaft, it is necessary to store a large number of parts including a pressing plate and an operation cam in the main body, which complicates the assembling work and increases the cost.
[0006]
An object of the present invention is to securely and easily attach the handle to the main body inserted from the front side into the mounting hole of the operation panel in a state in which the handle cannot be separated, thereby removing the main body from the operation panel without separating the main body and the handle. A selector that can be removed and can secure the safety of the device in which the switch is used, and can reduce the number of components housed in the main body, thereby facilitating assembly work and reducing costs. It is to provide a switch and a selector pushbutton switch.
[0007]
[Means for Solving the Problems]
In the first aspect of the invention, the main body is formed in a hollow cylindrical shape having a large-diameter collar on the front side and a small-diameter shaft on the back side, and a protruding piece is formed on the inner peripheral surface of the main body. A notch is formed in a part of the projecting piece, a shaft portion inserted into the shaft portion of the main body is formed from the front surface of the main body to the back surface of the handle accommodated in the main body, and the front surface of the shaft portion of the handle is formed in front. A protrusion which penetrates the notch portion in the axial direction and is located on the back side of the protruding piece and has a circumferential width substantially equal to the notch portion and is fitted to the handle shaft portion from the back side. Protruding portions that are continuous on both sides in the circumferential direction with respect to the projection are formed on the outer peripheral surface of the cam body to be formed, and an engaging portion that connects the handle and the cam body to each other in an inseparable manner is formed on the shaft portion and the cam body It is characterized by that.
[0008]
In the first aspect of the present invention, when the main body is attached to the operation panel, the shaft portion of the main body is inserted into the attachment hole of the operation panel from the front side. When assembling the selector switch, insert the handle shaft into the main body from the front side with the handle protrusion facing the notch on the main body, and then insert the cam body from the back side of the main body onto the handle shaft. When fitted, the handle and the cam body are inseparably coupled together at the engaging portion. At this time, the protruding portion of the cam body continues on both sides of the protrusion of the handle in the circumferential direction, and the protruding portion of the cam body contacts the protruding piece of the main body even when the protrusion of the handle faces the notch of the main body. Due to the abutment of the projecting portion with respect to the projecting piece, the handle cannot be pulled out from the main body in the front direction, and the attachment state of the handle to the main body is maintained firmly. Further, according to the present invention, since the cam body that contacts the operation plate for operating the switch is integrally attached to the shaft portion of the handle, the conventional operation shaft becomes unnecessary and the number of parts to be stored in the main body is reduced. Decrease.
[0009]
In the invention described in claim 2, the main body has a hollow cylindrical shape having a large-diameter flange on the front side and a small-diameter shaft on the back side, and the axial direction is open to the front on the inner peripheral surface of the main body. And a circumferential groove continuous with the axial groove, and a protrusion that fits into the groove is formed on the outer peripheral surface of the shaft of the handle housed in the main body from the front surface of the main body. The shaft portion of the handle penetrates from the front surface side, and a cylindrical cap that is fitted on the front surface side of the main body is provided. A notch through which the protrusion penetrates and an axial direction of the main body are provided on the inner peripheral surface of the cap. A protruding piece having a protruding portion that closes the front side of the groove portion is formed, and an engaging portion is formed on the outer peripheral surface of the main body and the inner peripheral surface of the cap so as to connect the main body and the cap in an inseparable manner. .
[0010]
In the invention described in claim 2, when the main body is attached to the operation panel, the shaft portion of the main body is inserted into the attachment hole of the operation panel from the front side. When assembling the selector pushbutton switch, with the protrusion of the handle inserted through the notch of the cap, the protrusion of the handle is opposed to the groove in the axial direction of the main body, and the shaft of the handle is inserted into the main body from the front side. After the insertion, the handle is rotated so that the protrusion is positioned in the circumferential groove of the main body. From this state, the engaging portion of the main body and the engaging portion of the cap are engaged with the protruding portion of the cap opposed to the axial groove portion of the main body. Accordingly, the cap is inseparably coupled with the main body in a state where the axial groove portion of the main body is closed by the protruding portion, so that the closed state of the axial groove portion by the protruding portion of the cap cannot be released. Therefore, the protrusion of the handle located in the circumferential groove of the main body cannot be moved into the axial groove, and the handle cannot be separated from the main body.
[0011]
BEST MODE FOR CARRYING OUT THE INVENTION
FIG. 1 is a diagram showing a configuration of a selector switch which is an example of an embodiment of the invention described in claim 1, and FIGS. 1A and 1B are a side sectional view and a plan sectional view, respectively, of the selector switch. is there. The main body 2 of the selector switch 11 is formed in a hollow cylindrical body, and includes a shaft portion 2a on the back surface side and a flange portion 2b on the front surface side having a larger diameter than the shaft portion 2a. A screw portion 2 c is formed on the outer peripheral surface of the shaft portion 2 a of the main body 2. The lock nut 6 is screwed into the screw portion 2c. In addition, the washer 5 abuts on the back side of the flange 2b. When the selector switch 11 is attached to the operation panel 51, the shaft portion 2a of the main body 2 is inserted into the attachment hole 52 from the front side of the operation panel 51, and the operation panel 51 is positioned between the washer 5 and the lock nut 6. Then, by tightening the lock nut 6, the washer 5 and the lock nut 6 sandwich the peripheral portion of the mounting hole 52.
[0012]
The main body 2 houses the shaft 1a of the handle 1, the notch holder 3, the cam 4, and the operation plate 7. The handle 1 includes a shaft portion 1a and a knob portion 1b, and a packing 9 is attached to an intermediate portion between the shaft portion 1a and the knob portion 1b. The packing 9 maintains a watertight state between the handle 1 and the main body 2, and prevents dust and moisture from entering the main body 2 from the front side of the operation panel 51. A cam 4 is fitted to the rear side end of the shaft portion 1 a of the handle 1.
[0013]
Concave portions 1 c are formed at two locations on the outer peripheral surface of the shaft portion 1 a of the handle 1, and convex portions 4 a are formed at two locations on the inner peripheral surface of the cam 4. When the cam 4 is fitted over the shaft 1a of the handle 1, the convex portion 4a of the cam 4 is fitted into the concave portion 1c of the shaft portion 1a. At this time, the vertical surfaces on the back side of the convex portions 4a and the concave portions 1c come into contact with each other, whereby the cam 4 cannot be pulled out from the shaft portion 1a to the back side, and the fitting state of the cam 4 with respect to the handle 1 is maintained. . That is, the convex portion 4a and the concave portion 1c are engaging portions that connect the handle 1 and the cam 4 inseparably, and the handle 1 and the cam 4 are made inseparable.
[0014]
The outer diameter of the shaft portion 1a of the handle 1 is substantially equal to the inner diameter of the protruding piece 2d of the main body 2, and the handle 1 is rotatably supported by the protruding piece 2d. A cam crest 4b is formed on the outer peripheral surface of the cam 4 together with a notch cam crest 4c described later, and two operation plates 7 are opposed to the cam crest 4b. As the handle 1 is rotated, the cam 4 also rotates, and the shape of the cam crest 4b facing the operation plate 7 changes. The operation plate 7 is in contact with a movable contact of a switch (not shown) attached to the back surface of the main body 2 and is urged toward the front surface side of the main body 2 by the restoring force of the movable contact. Therefore, the operation plate 7 always abuts against the cam crest 4b of the cam 4, and when the cam 4 rotates and the shape of the cam crest 4b changes, the abutment position between the cam crest 4b and the operation plate 7 changes in the axial direction. The operation plate 7 is displaced and moves in the axial direction following the change in the shape of the cam crest 4b.
[0015]
The notch holder 3 houses the notch plate 8 and the notch spring 10. The notch plate 8 is urged toward the front side of the main body 2 by the elastic force of the notch spring 10 at a position facing the notch cam crest 4 c formed on the cam 4, and the notch plate 8 is urged by the elastic force of the notch spring 10. The notch cam crest 4c is pressed. The pressing force of the notch plate 8 acts as a resistance force on the cam 4 and the handle 1 when the shape of the notch cam crest 4c changes due to the rotation of the cam 4 accompanying the rotation of the handle 1, and the handle 1 rotates. Gives a notch feeling.
[0016]
FIG. 2 is an assembly diagram of the main part of the selector switch. In the selector switch 11 described above, the protruding piece 2d of the main body 2 is formed with a notch 2e facing the protrusion 1d of the handle 1. The circumferential width of the notch 2e is substantially equal to the circumferential width of the protrusion 1d. When assembling the selector switch 11, first, the shaft 1a of the handle 1 is placed on the front side with the projection 1d formed on the handle 1 facing the notch 2e formed on the protruding piece 2d inside the main body 2. Into the main body 2. Thus, the protrusion 1d of the handle 1 is positioned on the back side of the protruding piece 2d. From this state, the cam 4 is inserted into the main body 2 from the back side of the main body 2, and the cam 4 is fitted on the shaft portion 1 a of the handle 1 inside the main body 2. At this time, as described above, the convex portions 4a formed at two locations on the inner peripheral surface of the cam 4 are fitted into the concave portions 1c formed at two locations on the outer peripheral surface of the shaft portion 1a of the handle 1. And the cam 4 are inseparably coupled.
[0017]
A groove portion 4d into which the protrusion 1d of the handle 1 is fitted is formed at the front end portion of the cam 4, and protrusions 4e are formed on both sides of the groove portion 4d on the outer peripheral surface of the cam 4. This protrusion 4e continues on both sides of the protrusion 1d fitted into the groove 4d. Therefore, when the handle 1 and the cam 4 are connected so as not to be separated, the protrusion 4e of the cam 4 is integrally continuous on both sides in the circumferential direction of the projection 1d of the handle 1, and the circumferential width of the projection 1d. Is enlarged by the protrusion 4e. Therefore, even when the protrusion 1d is opposed to the notch 2e of the protruding piece 2d of the main body 2, the protrusions 4e located on both sides of the protrusion 1d abut on the back side of the protruding piece 2d, and the handle 1 is moved to the front surface of the main body 2. It cannot be pulled out to the side.
[0018]
In this way, by detachably coupling the cam 4 to the handle 1 inside the main body 2, it is possible to reliably prevent the handle 1 from being detached from the main body 2. Further, since the operation plate 7 for operating the switch contacts is moved by the cam 4 coupled to the handle 1, it is not necessary to provide an operation shaft, and the number of parts can be reduced.
[0019]
FIG. 3 is a diagram showing a configuration of a selector pushbutton switch showing an example of an embodiment of the invention described in claim 2, and FIGS. 3A and 3B are a side sectional view and a selector pushbutton switch, respectively. FIG. The main body 22 of the selector pushbutton switch 41 is formed in a hollow cylindrical body, and includes a shaft portion 22a and a flange portion 22b having a diameter larger than that of the shaft portion 22a. The flange portion 22b is formed on the front side of the main body 22 with a gap provided outside the shaft portion 22a. A screw portion 22 c is formed on the outer peripheral surface of the shaft portion 22 a of the main body 22. A lock nut 32 is screwed into the screw portion 22c. In addition, a washer 31 abuts on the back side of the flange portion 22b. In the main body 22, the shaft portion 22 a is inserted into the mounting hole 52 from the front side of the operation panel 51, and the lock nut 32 is tightened to clamp the peripheral portion of the mounting hole 52 with the washer 31 and the lock nut 32. It is attached to the operation panel 51.
[0020]
The main body 22 accommodates the shaft portion 21 a of the handle 21, the holder 23, the operation shaft 24, the notch plate 25, the operation cam 26, the operation plate 28 and the notch spring 29. In addition, a cap 27 is fitted on the flange portion 22 b of the main body 22. The handle 21 includes a shaft portion 21a and a knob portion 21b, and houses the operation shaft 24 and the operation spring 30 to which the flat button 33 is attached. The handle 21 is rotatably supported on the inner peripheral surface of the flange portion 22b of the main body 22 in the shaft portion 21a.
[0021]
The operation shaft 24 is integrated in the circumferential direction with respect to the handle 21 by an engaging member, which will be described later, and is slidably held in the axial direction. The operation shaft 30 is accommodated in the handle 21. It is urged to the front side by elastic force. The operation shaft 24 is supported on the inner peripheral surface of the shaft portion 22a of the main body 22 via a packing 34 so as to be rotatable and movable in the axial direction.
[0022]
A notch cam crest 21 c is formed at the rear end of the shaft 21 a of the handle 21, and this notch cam crest 21 c faces the notch plate 25 housed in the main body 22. The notch plate 25 is urged to the front side by a notch spring 29. Therefore, the notch plate 25 presses the notch cam crest 21 c by the elastic force of the notch spring 29. The pressing force of the notch plate 29 acts as a resistance force on the handle 21 when the shape of the notch cam crest 21c changes as the handle 21 rotates, and gives a notch feeling to the rotation operation of the handle 21.
[0023]
An operation cam 26 is fitted on the outer peripheral surface of the operation shaft 24 on the back side. A projection 26 a is formed on the inner peripheral surface of the operation cam 26. The protrusion 26 a engages with a groove 24 a that is open at the end on the back side of the operation shaft 24. When the projection 26a is slidably engaged with the groove 24a in the axial direction, the operation cam 26 rotates together with the operation shaft 24. However, the operation shaft 24 moves in the axial direction independently of the operation cam 26.
[0024]
A cam crest 26 b is formed on the back side of the outer peripheral surface of the operation cam 26. On the other hand, the holder 23 fixed in the vicinity of the end on the back side inside the main body 22 holds the operation plate 28 for operating the contact portion of the switch (not shown) so as to be movable in the axial direction. The cam crest 26 b of the operation cam 26 abuts on the front end portion of the operation plate 28. Further, a projection 28a is formed on the inner side surface of the operation plate 28, and the end portion on the back side of the operation shaft 24 faces the projection 28a.
[0025]
When the knob 21b of the handle 21 is rotated, the operation cam 26 is rotated together with the operation shaft 24, and the shape of the cam crest 26b contacting the operation plate 28 is changed. Due to the change in the shape of the cam peak 26b, the contact position between the cam peak 26b and the operation plate 28 is displaced in the axial direction, and the operation plate 28 moves in the axial direction following the change in the shape of the cam peak 26b. To do.
[0026]
When the flat button 33 exposed on the front side of the handle 21 is pressed, the operating shaft 24 moves in the axial direction against the elastic force of the operating spring 30, and the end on the back side of the operating shaft 24 is operated. The operation plate 28 is moved to the back side by coming into contact with the projection 28a of the plate 28. Since the movement of the operation shaft 24 in the axial direction is not transmitted to the operation cam 26, the shape of the cam crest 26b of the operation cam 26 and the shape of the rear end of the operation shaft 24 is appropriately selected and combined. Various operation states of the operation plate 28 are changed by the rotation operation and the pressing operation of the flat button 33, and the contact state of the switch can be changed according to the specification of the device to which the selector push button switch is applied.
[0027]
FIG. 4 is an assembly diagram of the main part of the selector pushbutton switch. In the selector pushbutton switch 41 configured as described above, the flange portion 22b of the main body 22 has two axial groove portions 22d opened to the front side and circumferential groove portions 22e continuous to the groove portions 22d. It is formed in places. Further, convex portions 22 f are formed at two locations on the outer peripheral surface of the flange portion 22 b of the main body 22. On the other hand, a protruding piece 27a is formed on the inner peripheral surface of the cap 27, and a notch 27b in the radial direction and a protruding portion 27c protruding in the rear direction are formed at two positions on the protruding piece 27a. . In addition, concave portions 27 d are formed at two locations on the inner peripheral surface of the cap 27.
[0028]
When assembling the selector push button switch 41, the shaft portion 21a of the handle 21 fitted into the cap 27 is inserted into the gap between the shaft portion 22a and the flange portion 22b of the main body 22. At this time, first, the shaft portion 21a of the handle 21 is inserted into the cap 27 with the protrusions 21d formed at two locations of the handle 21 facing the notches 27b of the cap 27, and then the handle 21 is inserted into the cap 27. , The handle 21 is loosely fitted to the cap 27. Next, with the protrusion 21d facing the axial groove portion 22d formed on the flange portion 22b of the main body 22, the shaft portion 21a of the handle 21 loosely fitted to the cap 27 is operated via the notch plate 25. It is inserted into the gap between the shaft portion 22 a and the flange portion 22 b of the main body 22 against the elastic force of 29. Further, the handle 21 is rotated in the circumferential direction to move the protrusion 21d into the circumferential groove portion 22e.
[0029]
Next, the cap 27 is externally fitted to the flange portion 22 b of the main body 22 in a state where the protruding portion 27 c is opposed to the axial groove portion 22 d of the main body 22. At this time, the concave portion 27d formed on the inner peripheral surface of the cap 27 faces the convex portion 22f formed on the outer peripheral surface of the flange portion 22b of the main body 22, and the protruding portion 27c is fitted into the groove portion 22d so that the groove portion 22d is inserted. When the is closed, the convex portion 22f is fitted into the concave portion 27d. Since the vertical surface on the front surface side of the convex portion 22f comes into contact with the vertical surface on the front surface side of the concave portion 27d, the cap 27 is inseparably coupled to the main body 22, and the cap 27 cannot be removed from the main body 22 to the front surface side. Thus, the closed state of the groove 22d by the protrusion 27c is reliably maintained. That is, the convex portion 22f formed on the outer peripheral surface of the flange portion 22b of the main body 22 and the concave portion 27d formed on the inner peripheral surface of the cap 27 correspond to the engaging portion of the present invention.
[0030]
Therefore, even if the handle 21 is rotated in the circumferential direction, the protrusion 21d cannot be moved into the axial groove 22d, and the handle 21 is circular within the range in which the protrusion 21d moves in the circumferential groove 22e. The handle 21 can only be rotated in the circumferential direction and the handle 21 cannot be removed from the main body 22.
[0031]
In this way, it is possible to reliably prevent the handle 21 from being removed from the main body 22 through the cap 27 that is inseparably coupled to the main body 22. In addition, since the operation plate 28 that operates the contact of the switch is moved by the rear end portion of the operation shaft 24, it is not necessary to provide a pressing plate, and the number of parts can be reduced. Further, since the notch plate 25 is configured separately from the operation cam 26, the operation cam 26 can be omitted in the usage mode in which the movement of the operation plate 28 by the operation cam 26 is not required. It is possible to reduce the types of operation cams to be performed.
[0032]
【The invention's effect】
According to the first aspect of the present invention, when the cam body inserted from the back side of the main body is inseparably coupled to the handle inserted from the front side of the main body, the cam body is formed on both sides in the circumferential direction of the protrusion of the handle. Even when the protruding part is continuous and the protrusion of the handle faces the notch of the main body, the protruding part of the cam body abuts the protruding piece of the main body, so the handle cannot be pulled out from the main body in the front direction. The attachment state of the handle can be maintained firmly, and it is not necessary to separate the main body and the handle when the main body is attached to or detached from the operation panel, and the safety of the device using the switch can be ensured. In addition, since the cam body that contacts the operation plate that operates the switch is integrally attached to the shaft portion of the handle, the conventional operation shaft becomes unnecessary, and the number of parts that must be stored in the main body is reduced. Easier assembly work and cost reduction can be realized.
[0033]
According to the second aspect of the present invention, the axial groove portion of the main body is closed using a cap that is inseparably integrated with the main body, and the protrusion of the handle located in the circumferential groove portion of the main body has an axial direction. By preventing movement into the groove, the mounting state of the handle relative to the main body can be maintained robustly, and there is no need to separate the main body and the handle when the main body is attached to or detached from the operation panel. Safety can be ensured. In addition, since the operation plate that operates the contact of the switch is moved by the end on the back side of the operation shaft, there is no need to provide a pressing plate, and the number of parts can be reduced. Furthermore, since the notch plate is configured separately from the operation cam, the operation cam can be omitted in the usage mode in which the movement of the operation plate by the operation cam is not required. Kinds can be reduced.
[Brief description of the drawings]
FIGS. 1A and 1B are a side sectional view and a plan sectional view showing a configuration of a selector switch which is an example of an embodiment of the invention described in claim 1;
FIG. 2 is an assembly diagram of a main part of the selector switch.
FIG. 3 is a side sectional view and a plan sectional view showing a configuration of a selector pushbutton switch showing an example of an embodiment of the invention described in claim 2;
FIG. 4 is an assembly diagram of the main part of the selector pushbutton switch.
FIG. 5 is a side sectional view and a partially cutaway front view showing a conventional selector pushbutton switch.
[Explanation of symbols]
1,21-handles 1a, 21a-handle shafts 1b, 21b-pick parts 1c, 27d-recesses (engaging parts)
1d, 21d-projection 2, 22-main body 2a, 22a-main body shaft 2b, 22b-protrusion 2d-projection piece 2e-notch 4-cam 4a, 22f-convex (engaging portion)
4e-protrusions 7, 28-operation plate 11-selector switch 24-operation shaft 26-operation cam 27-cap 33-flat button 41-selector push button switch

Claims (2)

In the selector switch that converts the rotation of the handle exposed on the front of the main body into the axial displacement of the handle by the cam body and transmits it to the operation plate, and operates the switch arranged on the back of the main body via the operation plate.
The main body is formed in a hollow cylinder shape having a large-diameter collar on the front side and a small-diameter shaft on the back side. A protruding piece is formed on the inner peripheral surface of the main body, and a cutout is formed in a part of the protruding piece. Forming part,
A shaft part inserted into the shaft part of the main body is formed from the front surface of the main body to the back surface of the handle stored in the main body,
Protrusion is formed substantially equal to the width of the notch in the circumferential direction a projection extending through axially positioned on the rear side of the projecting piece front Symbol notch on the outer peripheral surface of the shaft portion of the handle,
Protruding portions that are continuous on both sides in the circumferential direction with respect to the protrusion are formed on the outer peripheral surface of the cam body that is fitted to the shaft portion of the handle from the back side,
A selector switch characterized in that an engaging portion for connecting the handle and the cam body inseparably is formed on the shaft portion of the handle and the cam body. A selector that rotates the operation cam by the handle exposed on the front of the main unit, displaces the operation cam in the axial direction by a push button penetrating the handle, and operates a switch disposed on the rear surface of the main unit via an operation plate facing the operation cam In pushbutton switch,
The main body is configured in a hollow cylindrical shape having a large-diameter collar on the front side and a small-diameter shaft on the back side, and an axial groove opening to the front on the inner peripheral surface of the main body, and this axial groove And a circumferential groove continuous to
On the outer peripheral surface of the shaft portion of the handle stored in the main body from the front surface of the main body, a protrusion that fits into the groove portion is formed,
The shaft portion of the handle penetrates from the front surface side, and a cylindrical cap that is fitted on the front surface side of the main body is provided. A notch through which the protrusion penetrates and an axial groove portion of the main body are provided on the inner peripheral surface of the cap. Forming a protruding piece having a protruding portion that closes the front side of the
A selector pushbutton switch, characterized in that an engaging portion for detachably coupling the main body and the cap is formed on the outer peripheral surface of the main body and the inner peripheral surface of the cap.

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