JP6396846B2 - Rotating operation type electric parts - Google Patents

Description

  The present invention relates to a rotary operation type electrical component, and more particularly to a rotary operation type electrical component with a push switch attached to a vehicle or the like.

  As a rotary operation type electric component attached to a vehicle or the like, for example, a rotary operation type electric component 900 with a push switch disclosed in Patent Document 1 is known. The structure of the electrical component 900 is shown in FIG.

  The electric component 900 includes a main body (not shown) that outputs an electric signal by operating the operation shaft 902 that protrudes outward, and a hole portion into which the operation shaft 902 is press-fitted into the distal end portion of the operation shaft 902. A receiving member 904 having 904b and a knob portion 905 inserted through the operating shaft 902 (receiving member 904) so as to be movable in the axial direction of the operating shaft 902 are provided. Further, an elastic member 906 that urges the knob portion 905 to push forward between the receiving member 904 attached to the operation shaft 902 and the knob portion 905 (receiving surface 905e) is disposed around the operation shaft 902. ing. A claw portion 905g provided at the tip of the leg portion 905b of the knob portion 905 is inserted into the hole 904d and engaged with the receiving member 904, so that the knob portion 905 is prevented from coming off by the receiving member 904.

  With such a configuration, the electric component 900 has an elastic member 906 that urges the knob portion 905 to be pushed forward between the main body portion to which the operation shaft 902 is attached and the knob portion 905. When an excessive pressing force larger than the urging force of the elastic member 906 is applied to the knob portion 905, only the knob portion 905 moves in the axial direction to absorb this excessive pressing force, It is possible to prevent the operation shaft 902 and the like from being damaged, and to provide an effect that it is possible to provide the electric component 900 having excellent durability.

JP 2001-035299 A

  However, in the electric component 900, when a strong axial force is applied to the knob portion 905, the front surface portion 905c of the knob portion 905 contacts the base portion 904a of the receiving member 904, and the movement of the knob portion 905 is restricted. It has become so. And since the front surface part 905c is not formed thick, when the extremely strong force was applied to the knob part 905, there existed a subject that the knob part 905, ie, an operation part, might be damaged.

  The present invention has been made in view of such a state of the art, and when a strong force is applied to the operation unit, the amount of protrusion of the operation unit can be reduced, and the operation unit is not easily damaged. An object is to provide an operation type electric component.

  In order to solve the above-described problem, a rotary operation type electrical component according to the present invention includes a housing having a cylindrical bearing portion, a shaft body that protrudes from the bearing portion to one side and is rotatably supported by the bearing portion. A rotation operation type electric component comprising: a rotation detecting means for detecting a rotation operation of the shaft body; and a push switch driven by pressing the shaft body, wherein the shaft body includes the bearing portion. And an outer shaft having a penetrating portion through which the inner shaft is inserted. The outer shaft is movable in the axial direction with respect to the inner shaft through the inner shaft. And a spring member for urging the outer shaft to one side is disposed between the inner shaft and the outer shaft, and The inner shaft has a retainer that prevents the outer shaft from retaining. A member is attached, and the outer shaft is biased toward the one side by the spring member, and a lower end portion thereof is opposed to a tip portion of the bearing portion with a predetermined interval, When the outer shaft is pressed to the other side, the push switch is driven via the inner shaft, and when a stronger pressing force is applied, the outer shaft is moved against the biasing force of the spring member. It moves to the other side, and has the characteristic that the lower end part of the said outer shaft and the front-end | tip part of the said bearing part contact | abut.

  The rotary operation type electrical component configured in this way forms a shaft body with an inner shaft and an outer shaft to which an operation portion (knob portion) can be attached, and the outer shaft is stronger than that during normal pressing operation. When the pressing force is applied, the outer shaft moves to the housing side in the axial direction against the biasing force of the spring member, so that the protruding amount of the shaft body can be reduced. Further, when the outer shaft moves in the axial direction, the lower end portion of the outer shaft and the tip portion of the bearing portion come into contact with each other. As a result, the amount of protrusion of the operation unit can be reduced, and a rotary operation type electrical component that is difficult to damage the operation unit can be provided.

  In the above configuration, the outer shaft includes a tubular portion and a spring receiving portion that is located inside the tubular portion and has the through portion formed therein, and the inner shaft is disposed on the tubular portion. A shaft portion disposed and a projecting portion projecting from the shaft portion, wherein the spring member is a coil spring, and the spring member is sandwiched between the spring receiving portion and the projecting portion. It has the characteristic that it is arrange | positioned in the said cylindrical part.

  In the rotary operation type electrical component configured as described above, the spring member made of a coil spring is disposed in the cylindrical portion of the outer shaft, and thus the spring member is not exposed. Therefore, the spring member can be prevented from being deformed.

  Further, in the above configuration, the protruding portion is partially exposed from the cylindrical portion and opposed to the tip portion of the bearing portion in an initial state before the outer shaft is pressed. When the outer shaft is pressed to the other side, the overhanging portion is after the push switch is driven and before the lower end portion of the outer shaft and the tip end portion of the bearing portion come into contact with each other. Is in contact with the tip portion of the bearing portion.

  In the rotary operation type electrical component configured in this way, the movement of the inner shaft is limited by the contact between the protruding portion of the inner shaft and the tip of the bearing portion of the housing, so that a strong force is applied to the push switch. This can be suppressed and breakage of the push switch can be prevented.

  In the above configuration, the inner shaft is made of metal, and the retaining member is made of a metal ring-like member disposed on one side of the spring receiving portion, and the shaft portion of the inner shaft is The tip has a feature that an inclined portion is provided.

  The rotary operation type electrical component configured as described above can easily prevent the outer shaft from coming off by using the ring-shaped member. Further, since the shaft portion and the ring-shaped member are made of metal, the outer shaft is reliably prevented from coming off.

  Further, in the above configuration, when the lower end portion of the outer shaft and the tip end portion of the bearing portion come into contact with each other, the protruding portion of the inner shaft is accommodated in the cylindrical portion of the outer shaft. Have

  Since the rotary operation type electrical component configured in this way can eliminate the influence on the operation unit attached to the outer shaft, the degree of freedom in designing the knob serving as the operation unit can be increased.

  Further, in the above configuration, the movement of the outer shaft in the axial direction is guided by a plurality of spaced apart guide portions provided on the outer shaft, and the projecting portion of the inner shaft is supported with respect to the inner shaft. A rotation restricting portion for restricting the rotation of the outer shaft is provided.

  The rotary operation type electrical component configured as described above can smoothly move the outer shaft in the axial direction.

  The rotary operation type electrical component of the present invention forms a shaft body with an inner shaft and an outer shaft to which an operation portion (knob portion) can be attached, and a stronger pressing force is applied to the outer shaft than during a normal pressing operation. When added, the outer shaft moves to the housing side in the axial direction against the urging force of the spring member, so that the protruding amount of the shaft body can be reduced. Further, when the outer shaft moves in the axial direction, the lower end portion of the outer shaft and the tip portion of the bearing portion come into contact with each other. As a result, the amount of protrusion of the operation unit can be reduced, and a rotary operation type electrical component that is difficult to damage the operation unit can be provided.

It is a disassembled perspective view which shows each member which comprises the rotational operation type electrical component in embodiment. It is a perspective view which shows the external appearance of a rotation operation type electric component. It is a top view of a rotation operation type electric component. It is a perspective view which shows the structure of a shaft body. It is a front view of a rotation operation type electric component. It is sectional drawing of a rotation operation type electric component. It is sectional drawing which shows operation | movement of a rotation operation type electric component. It is a graph which shows the relationship between the operation load of an outer axis | shaft, and stroke amount. It is sectional drawing which shows the rotary operation type electric component which concerns on a prior art example.

[Embodiment]
Hereinafter, embodiments of the present invention will be described with reference to the drawings. The rotary operation type electrical component 100 according to the present embodiment is attached to a front panel of a housing of, for example, an on-vehicle audio device or video device (for example, a car stereo device or a car navigation system), and a power source for the audio device or the like. This is used for on / off operation and input source switching operation. In addition, about the use of the rotary operation type electrical component 100 which concerns on this Embodiment, it is not limited to these but can be changed suitably.

  With reference to FIG. 1 thru | or FIG. 6, the structure of the rotation operation type electrical component 100 and the structure of the shaft body 10 are demonstrated. FIG. 1 is an exploded perspective view showing members constituting the rotary operation type electric component 100, and FIG. 2 is a perspective view showing an appearance of the rotary operation type electric component 100. 3 is a plan view of the rotary operation type electric component 100, FIG. 4 is a perspective view showing each member constituting the shaft body 10, and FIG. 5 is a front view of the rotary operation type electric component 100. As shown in FIG. FIG. 6 is a cross-sectional view of the rotary operation type electric component as seen from the line AA shown in FIG. FIG. 4 shows a state where the retaining member 17 is attached to the inner shaft 11 for easy understanding.

  As shown in FIG. 1, the rotary operation type electric component 100 includes a shaft body 10 including an inner shaft 11, an outer shaft 13, a spring member 15, and a retaining member 17, a bearing portion 21, a mounting member 23, and a base member. A housing 20 composed of 25, a push switch 30 composed of a movable contact 31, a rubber 33, and a switch contact member 35; a mold member 37; and a rotation detection means 40 composed of a rotation detection contact member 41 and a rotating body 42. Is done.

  As shown in FIG. 2, the housing 20 includes a cylindrical bearing portion 21 that holds the shaft body 10, a base member 25 that forms the bottom portion, a portion having a substantially square shape on the −Z side of the bearing portion 21, and a mold. It comprises a metal mounting member 23 that sandwiches and integrates the member 37 and the base member 25. The mold member 37 is also a member constituting the housing 20.

  As shown in FIGS. 3 and 5, the surface on the + Z side of the mounting member 23 is a flat portion 23 b extending in a direction perpendicular to the axial direction D <b> 1, and the rotary operation type electric component 100 is mounted on a vehicle. When attached to the housing of the audio device, the flat portion 23b is attached so as to be parallel to the front panel of the audio device or the like. As shown in FIGS. 2 and 3, the attachment member 23 is provided with a substrate attachment portion 23 a, which is attached to a substrate (not shown) in an in-vehicle acoustic device or the like to which the rotary operation type electric component 100 is attached. It is attached with solder.

  The mold member 37 is made of a synthetic resin material, and is a member in which a switch contact member 35 for the push switch 30 and a rotation detection contact member 41 for the rotation detection means 40 are insert-molded. The switch terminal 35b of the switch contact member 35 and the rotation detection terminal 41b of the rotation detection contact member 41 are attached at the same time when the board attachment portion 23a of the attachment member 23 is attached to a board in an in-vehicle acoustic device or the like.

  As shown in FIG. 2, the shaft body 10 protrudes from the cylindrical bearing portion 21 of the housing 20 to one side (+ Z side) and is rotatably held by the bearing portion 21. As shown in FIG. 6, the shaft body 10 includes an inner shaft 11 that is inserted through the bearing portion 21 and an outer shaft 13 that includes a through portion 13 a that allows the inner shaft 11 to pass therethrough. The inner shaft 11 is inserted through the inner shaft 11 so that the inner shaft 11 can move in the axial direction D1 and can rotate integrally with the inner shaft 11.

  As shown in FIG. 6, the outer shaft 13 includes a cylindrical portion 13c and a spring receiving portion 13d that is located inside the cylindrical portion 13c and has a through portion 13a formed therein. As shown in FIGS. 2 and 3, a plurality of protrusions 13 g are formed on the outer surface of the outer shaft 13, and a knob (not shown) that serves as an operation part of the rotary operation type electric component 100 is attached. Is possible. Further, the inner shaft 11 is made of a metal extending in the axial direction D1, and as shown in FIGS. 4 and 6, a shaft portion 11a partially disposed on the cylindrical portion 13c of the outer shaft 13, and the shaft portion It is formed from a projecting portion 11b projecting outward at the center of 11a. Specifically, the shaft portion 11a located on the upper side that is one side of the overhang portion 11b is disposed in the cylindrical portion 13c, and the shaft portion 11a located on the lower side that is the other side of the overhang portion 11b is the bearing portion 21. Has been inserted.

  As shown in FIGS. 4 and 6, a spring member 15 that urges the outer shaft 13 toward one side (+ Z side) is disposed between the inner shaft 11 and the outer shaft 13, and the inner shaft 11. Is attached with a retaining member 17 for preventing the outer shaft 13 from coming off.

  The spring member 15 includes a coil spring 15a, and the spring member 15 is sandwiched (compressed) between the spring receiving portion 13d of the outer shaft 13 and the protruding portion 11b of the inner shaft 11 as shown in FIG. It is disposed in the cylindrical portion 13 c of the outer shaft 13. Therefore, the spring member 15 is not exposed to the outside.

  The retaining member 17 is made of a metal ring-shaped member 17a called C ring or O ring having elasticity. Specifically, the retaining member 17 is configured by a metal wire formed in a ring shape that is not connected to a part and forms a C shape. An annular groove is formed in the vicinity of one end (+ Z side) of the shaft 11a of the inner shaft 11, and a ring-shaped member 17a is attached to this groove. As shown in FIG. 6, the portion of the inner shaft 11 to which the ring-shaped member 17 a is attached is disposed on one side (+ Z side) of the spring receiving portion 13 d of the outer shaft 13. In addition, an inclined portion 11 c is provided at the tip (upper end) of the shaft portion 11 a of the inner shaft 11. Since the inclined portion 11c is provided at the tip of the shaft portion 11a, it is easy to attach the ring-shaped member 17a to the shaft portion 11a. The dimensions of the inner shaft 11 and the outer shaft 13 are set so that the inner shaft 11 does not protrude from the upper end portion 13 f of the outer shaft 13.

  As shown in FIG. 4, the cylindrical portion 13 c of the outer shaft 13 is provided with a plurality of (a pair in this embodiment) guide portions 13 e that are spaced apart from each other in a convex shape, and the axial direction D <b> 1 of the outer shaft 13. Is moved by the pair of guide portions 13e. In addition, a plurality of (a pair in this embodiment) rotation restricting portions 11d are provided in the protruding portion 11b of the inner shaft 11 in a concave shape, and a pair of guide portions 13e of the outer shaft 13 are formed as a pair of rotation restricting portions 11d. By being held, the rotation of the outer shaft 13 relative to the inner shaft 11 can be restricted. In other words, the outer shaft 13 can be moved in the axial direction D1 because the guide portion 13e is guided by the rotation restricting portion 11d of the inner shaft 11.

  In the housing 20, as shown in FIG. 5, there are provided a rotation detection means 40 for detecting the rotation operation of the shaft body 10 and a push switch 30 that is driven by pressing the shaft body 10.

  The rotation detecting means 40 includes a rotating body 42 provided with a code pattern and a rotation detection contact member 41 that is in sliding contact with the rotating body 42. As shown in FIG. 6, the drive body 43 disposed on the + Z side of the rotation detection means 40 rotates by the rotation operation of the shaft body 10. The rotating body 42 is configured to rotate as the driving body 43 rotates. A detection signal from the rotation detection means 40 is output to an acoustic device or the like connected via a rotation detection contact member 41 including a rotation detection contact 41 a in the housing 20 and a rotation detection terminal 41 b extending outside the housing 20. The The driving body 43 rotates together with the rotating body 42, but can move independently of the rotating body 42 in the axial direction D1.

  As shown in FIG. 6, the push switch 30 includes a switch fixed contact 35 a, a movable contact 31, and a rubber 33. In the push switch 30, the driving body 43 described above is pressed by the pressing operation of the shaft body 10, so that the rubber 33 is pressed and deformed to press the movable contact 31. As a result, the switching operation is performed by the movable contact 31 coming into contact with the switch fixed contact 35a. The switching signal is output to an acoustic device or the like connected via a switch contact member 35 including a switch fixed contact 35 a inside the housing 20 and a switch terminal 35 b extending outside the housing 20.

  Next, the operation of the rotary operation type electric component 100 will be described with reference to FIGS. FIG. 7 is a cross-sectional view showing the operation of the rotary operation type electric component 100. FIG. 7A is a cross-sectional view showing a state before the outer shaft 13 of the rotary operation type electric component 100 is pressed, and FIG. 7B is a diagram when the outer shaft 13 is normally pressed. FIG. 7C is a cross-sectional view showing a state when a stronger pressing force is applied after the outer shaft 13 is pressed. FIG. 8 shows the operation of the outer shaft 13 when the outer shaft 13 is normally pressed from the state before the outer shaft 13 is pressed and a strong pressing force is applied to the outer shaft 13. It is a graph which shows the relationship between a load and stroke amount (movement amount).

  As shown in FIG. 7A, in the initial state before the outer shaft 13 is pressed, the outer shaft 13 is urged to one side (+ Z side) by the spring member 15. The lower end portion 13b of the housing 20 is opposed to the tip end portion 21a of the bearing portion 21 of the housing 20 with a predetermined interval. Further, in the initial state before the outer shaft 13 is pressed, the inner shaft lower end portion 11 e of the protruding portion 11 b of the inner shaft 11 is also opposed to the tip portion 21 a of the bearing portion 21. In this initial state, a part (lower part) of the overhanging part 11b is exposed in a state of protruding from the cylindrical part 13c of the outer shaft 13 to the other side (lower side).

  In a state before the outer shaft 13 is pressed, that is, when the stroke of the outer shaft 13 is 0 mm, as shown in FIG. 8, no operating load (acting force) is applied to the outer shaft 13 in the axial direction D1. Further, since no pressing force is applied to the rubber 33 of the push switch 30, the rubber 33 is not deformed as shown in FIG. Here, the distance from the flat portion 23b of the attachment member 23 to the upper end portion 13f of the outer shaft 13 in a state before the outer shaft 13 is pressed is defined as L0.

  As shown in FIG. 7B, when the outer shaft 13 of the rotary operation type electric component 100 is normally pressed, that is, when the outer shaft 13 is pressed to the other side (−Z side). The push switch 30 is driven via the inner shaft 11 and the driving body 43. That is, the leg portion of the rubber 33 of the push switch 30 is deformed so as to buckle, and the movable contact 31 and the switch fixed contact 35a come into contact with each other. After the push switch 30 is driven, the inner shaft lower end portion 11 e of the protruding portion 11 b of the inner shaft 11 contacts the tip end portion 21 a of the bearing portion 21 of the housing 20.

  When the outer shaft 13 of the rotary operation type electric component 100 is normally pressed, as shown in FIG. 8, the operation load of the outer shaft 13 gradually increases and the operation load increases to P1 (N). Once the rubber 33 is deformed, it is once lowered, and then the operation load reaches P2 (N). At this time, the lower end portion 11e of the inner shaft 11b of the projecting portion 11b of the inner shaft 11 contacts the tip portion 21a of the bearing portion 21 of the housing 20, and the stroke of the outer shaft 13 is L1 (mm). Therefore, the position of the upper end portion 13f of the outer shaft 13, that is, the distance from the flat portion 23b of the mounting member 23 is (L0−L1) (mm).

  Next, when a stronger pressing force (operation load) is applied to the outer shaft 13 of the rotary operation type electric component 100, it is stored in the cylindrical portion 13c of the outer shaft 13, as shown in FIG. The compressed spring member 15 is compressed, the outer shaft 13 moves to the other side (−Z side) against the urging force of the spring member 15, and the lower end portion 13 b of the outer shaft 13 and the tip end portion of the bearing portion 21 are moved. 21a abuts. When the lower end portion 13 b of the outer shaft 13 and the tip end portion 21 a of the bearing portion 21 come into contact with each other, the protruding portion 11 b of the inner shaft 11 is accommodated in the cylindrical portion 13 c of the outer shaft 13.

  When a stronger pressing force (operation load) is applied after the outer shaft 13 of the rotary operation type electric component 100 is normally pressed, the spring member 15 is compressed, as shown in FIG. The operation load on the outer shaft 13 gradually increases from P2 (N), and the operation load increases to P3 (N). At this time, the stroke of the outer shaft 13 is L2 (mm). Accordingly, the position of the upper end portion 13f of the outer shaft 13, that is, the distance from the flat portion 23b of the mounting member 23 is (L0−L2) (mm).

  Thus, when the outer shaft 13 is pressed to the other side (−Z side), the push switch 30 is driven via the inner shaft 11, and when a stronger pressing force is applied, the spring member 15 The outer shaft 13 moves to the other side (-Z side) by the amount (L2-L1) against the urging force, and the lower end portion 13b of the outer shaft 13 and the tip end portion 21a of the bearing portion 21 come into contact with each other. The protruding amount of the shaft body 10 can be reduced by (L2-L1).

  Further, when the outer shaft 13 is pressed to the other side (−Z side), after the push switch 30 is driven, before the lower end portion 13b of the outer shaft 13 and the tip end portion 21a of the bearing portion 21 come into contact with each other. In addition, the protruding portion 11 b of the inner shaft 11 comes into contact with the distal end portion 21 a of the bearing portion 21. Therefore, the movement of the inner shaft 11 is limited by the contact between the protruding portion 11 b of the inner shaft 11 and the tip portion 21 a of the bearing portion 21 of the housing 20.

  Hereinafter, the effect by having set it as this embodiment is demonstrated.

  The rotary operation type electric component 100 includes a shaft body 10 including an inner shaft 11 and an outer shaft 13 to which an operation unit (knob) can be attached, and the outer shaft 13 has a stronger pressing force than that during a normal pressing operation. Is applied, the outer shaft 13 moves to the housing 20 side in the axial direction D1 against the urging force of the spring member 15, so that the protruding amount of the shaft body 10 can be reduced. Further, when the outer shaft 13 moves in the axial direction D1, the lower end portion 13b of the outer shaft 13 and the tip end portion 21a of the bearing portion 21 come into contact with each other. As a result, the amount of protrusion of the operation unit can be reduced, and the rotary operation type electric component 100 can be provided in which the operation unit is not easily damaged.

  Further, since the spring member 15 formed of the coil spring 15a is disposed on the cylindrical portion 13c of the outer shaft 13, the spring member 15 is not exposed. Therefore, the spring member 15 can be prevented from being deformed.

  Further, since the movement of the inner shaft 11 is limited by the contact between the protruding portion 11b of the inner shaft 11 and the distal end portion 21a of the bearing portion 21 of the housing 20, it is possible to suppress a strong force from being applied to the push switch 30. Thus, the push switch 30 can be prevented from being broken.

  Further, by using the ring-shaped member 17 a as the retaining member 17, it is possible to easily prevent the outer shaft 13 from coming off. Further, since the shaft portion 11a and the ring-shaped member 17a are made of metal, the outer shaft 13 is reliably prevented from coming off.

  Further, when the lower end portion 13b of the outer shaft 13 and the tip end portion 21a of the bearing portion 21 come into contact with each other, the protruding portion 11b of the inner shaft 11 is accommodated in the cylindrical portion 13c of the outer shaft 13, so that the outer shaft The influence on the operation part attached to 13 can be eliminated. Therefore, it is possible to increase the degree of freedom of design of the knob serving as the operation unit.

  In addition, the outer shaft 13 is guided by a plurality (a pair) of guide portions 13e, and the overhanging portion 11b of the inner shaft 11 is provided with a rotation restricting portion 11d that restricts the rotation of the outer shaft 13 relative to the inner shaft 11. The movement of the outer shaft 13 in the axial direction D1 can be performed smoothly.

  As described above, the rotary operation type electrical component according to the present invention forms a shaft body with the inner shaft and the outer shaft to which the operation unit can be attached, and the outer shaft has a stronger pressing force than during a normal pressing operation. When pressure is applied, the outer shaft moves to the housing side in the axial direction against the biasing force of the spring member, so that the protruding amount of the shaft body can be reduced. Further, when the outer shaft moves in the axial direction, the lower end portion of the outer shaft and the tip portion of the bearing portion come into contact with each other. As a result, the amount of protrusion of the operation unit can be reduced, and a rotary operation type electrical component that is difficult to damage the operation unit can be provided.

  The present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the scope of the invention. For example, in the above-described embodiment, the ring-shaped member that is the retaining member has been described as being configured by the metal wire formed in a C-shaped ring shape, but is not limited thereto. That is, the retaining member may be a ring-shaped member made of an elastic metal plate called a speed nut.

DESCRIPTION OF SYMBOLS 10 Shaft body 11 Inner shaft 11a Shaft part 11b Overhang | projection part 11c Inclination part 11d Rotation restriction part 11e Inner shaft lower end part 13 Outer shaft 13a Through part 13b Lower end part 13c Cylindrical part 13d Spring receiving part 13e Guide part 15 Spring member 15a Coil spring 17 Retaining member 17a Ring-shaped member 20 Housing 21 Bearing portion 21a Tip portion 23 Mounting member 23a Substrate mounting portion 23b Flat portion 25 Base member 30 Push switch 31 Movable contact 33 Rubber 35 Switch contact member 35a Switch fixed contact 35b Switch terminal 37 Mold member DESCRIPTION OF SYMBOLS 40 Rotation detection means 41 Rotation detection contact member 41a Rotation detection contact 41b Rotation detection terminal 42 Rotating body 43 Drive body 100 Rotation operation type electric component D1 Axis direction

Claims (6)

A housing having a cylindrical bearing, a shaft projecting from the bearing to one side and rotatably supported by the bearing, rotation detecting means for detecting a rotation operation of the shaft, and the shaft A rotary operation type electrical component comprising a push switch driven by pressing a body,
The shaft body includes an inner shaft that is inserted through the bearing portion and an outer shaft that has a through portion through which the inner shaft is inserted, and the outer shaft is inserted through the inner shaft and the inner shaft. Can move in the axial direction and can rotate integrally with the inner shaft,
A spring member that biases the outer shaft toward one side is disposed between the inner shaft and the outer shaft, and a retaining member that prevents the outer shaft from coming off is disposed on the inner shaft. Is attached,
The outer shaft is biased toward the one side by the spring member, and a lower end portion thereof is opposed to a tip portion of the bearing portion with a predetermined interval, and presses the outer shaft to the other side. When operated, the push switch is driven through the inner shaft, and when a stronger pressing force is applied, the outer shaft moves to the other side against the biasing force of the spring member, and A rotary operation type electric component, wherein a lower end portion of an outer shaft and a tip end portion of the bearing portion are in contact with each other. The outer shaft includes a tubular portion and a spring receiving portion that is located inside the tubular portion and has the through portion formed therein, and the inner shaft includes a shaft portion that is disposed in the tubular portion and the shaft portion. A projecting portion projecting from the shaft portion,
The spring member is a coil spring, and the spring member is disposed in the cylindrical portion in a state of being sandwiched between the spring receiving portion and the overhanging portion. Rotating operation type electrical component as described in 1.   In the initial state before the outer shaft is pressed, the projecting portion is partly exposed from the cylindrical portion and opposed to the tip end portion of the bearing portion. When the push switch is driven and before the lower end portion of the outer shaft and the tip end portion of the bearing portion come into contact with each other, The rotary operation type electrical component according to claim 2, wherein the rotary operation type electrical component is in contact with a tip portion.   The inner shaft is made of metal, and the retaining member is a metal ring-shaped member disposed on one side of the spring receiving portion, and an inclined portion is formed at the tip of the shaft portion of the inner shaft. The rotary operation type electrical component according to claim 2, wherein the rotary operation type electrical component is provided.   The projecting portion of the inner shaft is accommodated in a cylindrical portion of the outer shaft when a lower end portion of the outer shaft and a tip portion of the bearing portion are in contact with each other. The rotary operation type electric component according to claim 4. The movement of the outer shaft in the axial direction is guided by a plurality of spaced apart guide portions provided on the outer shaft, and the protruding portion of the inner shaft restricts rotation of the outer shaft relative to the inner shaft. The rotation operation type electric component according to claim 2, wherein a rotation restricting portion is provided.

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