JPWO2018198549A1 - Stoke switch - Google Patents

Abstract

The stalk switch (10) is provided on both sides below the steering wheel, and has a rod-shaped lever body (20), a substantially cylindrical operation knob (30) located outside the lever body (20), and a lever body (20). ) And an operation knob (30), the operation knob (30) and the rotation cam (40) being integrally rotated with respect to the lever body (20). Can move. The stalk switch (10) includes a first engagement mechanism (22, 42) for limiting a relative position between the lever body (20) and the rotating cam (40) in a longitudinal direction of the lever body (20), and a longitudinal direction of the lever body. A second engagement mechanism (32, 43) for limiting a relative position between the operation knob (30) and the rotary cam (40) in the direction, wherein the first engagement mechanism and the second engagement mechanism A part of the peripheral wall of the cam (40) is shared.

Description

  The present invention relates to a stalk switch.

  Usually, stalk switches such as a direction indicator lamp switch and a wiper switch are provided on both sides below a steering wheel of an automobile. The stalk switch is configured by a combination of a swing lever switch and a knob switch, and different functions are realized by performing different operations on the swing lever switch and the knob switch. Taking the direction indicator lamp switch on the left side below the steering as an example, for example, a function of turning on and off the left and right turn signal lamps by swinging the direction indicator lamp switch up and down is realized, and the direction indicator lamp switch is moved forward and backward. The function of turning on / off the high beam lamp is realized by swinging, and the function of turning on / off the head lamp, tail lamp, and the like is realized by rotating the rotary switch.

  FIG. 1 is a perspective view showing a conventional stalk switch 1. FIG. 2 is an exploded perspective view showing the stalk switch 1 in FIG.

  The outer shape of the stalk switch 1 in FIG. 1 is substantially rod-shaped, and mainly includes a rod-shaped lever body 2 located on the center side, a cylindrical operation knob 3 located on the outside, and a position between the lever body 2 and the operation knob 3. The operation knob 3 and the rotation cam 4 can rotate integrally with the lever main body 2. Further, a circuit board 5 is further provided on the lever body 2, and the circuit board can convert an operation on the stalk switch 1 into a control signal corresponding to each operation and transmit the control signal to a control mechanism (not shown).

  The lever body 2 is provided with a concave portion 2a extending in the circumferential direction, and the rotary cam 4 is provided with a first protrusion 4a that engages with the concave portion 2a and protrudes toward the concave portion 2a. . When the recess 2a is engaged with the first protrusion 4a, the rotary cam 4 cannot move along the longitudinal direction of the lever main body 2, and the relative position of the rotary cam 4 in the longitudinal direction of the lever main body 2 is fixed. Is done.

  The rotary cam 4 is further provided with a substantially rectangular hole 4b, and the operation knob 3 is further provided with a second protrusion 3a which engages with the hole 4b and protrudes toward the hole 4b. ing. When the hole 4b is engaged with the second projection 3a, the operation knob 3 cannot move along the longitudinal direction of the lever body 2, and the relative position of the operation knob 3 in the longitudinal direction of the lever body 2 is Fixed.

  The outer wall of the rotating cam 4 is further provided with a third protrusion 4c protruding outward, and the inner wall of the operation knob 3 is further provided with a concave portion 3b engaging with the third protrusion 4c. When the third protrusion 4c is engaged with the recess 3b, the operation knob 3 cannot move along the circumferential direction of the rotary cam 4, and the relative position of the operation knob 3 in the circumferential direction of the rotary cam 4 Is fixed.

  However, in the conventional stalk switch 1 shown in FIGS. 1 and 2, since the first protrusion 4 a and the hole 4 b provided on the rotating cam 4 are provided at different positions, the surface area of the rotating cam 4 is different. Is low, and the degree of freedom in installing other functional mechanisms, marks, and the like on the rotary cam 4 is low. In addition, if the first protrusion 4a and the hole 4b are simply placed close to each other, the strength of the rotary cam 4 may be reduced because there are too many holes locally.

  SUMMARY OF THE INVENTION It is an object of the present invention to provide a stalk switch that can improve the usage rate of the surface area of a rotating cam.

  In one aspect of the embodiment of the present invention, the stalk switch is provided on both sides below the steering wheel, and has a rod-shaped lever main body, a substantially cylindrical operation knob located outside the lever main body, A stalk switch including a substantially cylindrical rotary cam located between the lever body and the operating knob, wherein the operating knob and the rotary cam can rotate integrally with the lever body. A first engagement mechanism for restricting a relative position between the lever body and the rotary cam, a second engagement mechanism for limiting a relative position between the operation knob and the rotary cam in a longitudinal direction of the lever body, And the first engagement mechanism and the second engagement mechanism share a partial area on the peripheral wall of the rotary cam.

  According to one aspect of the embodiment of the present invention, the first engagement mechanism and the second engagement mechanism share a partial area on the peripheral wall of the rotating cam, that is, the first engagement mechanism and the second engagement mechanism. Is partially overlapped on the peripheral wall of the rotating cam, and reduces the space occupied by the first engagement mechanism and the second engagement mechanism as compared with the conventional case where the first engagement mechanism and the second engagement mechanism are separately provided. The usage rate of the surface area of the rotating cam can be improved. As a result, the degree of freedom in setting other functional mechanisms, marks, and the like on the rotating cam can be improved.

It is a perspective view showing the conventional stalk switch. FIG. 2 is an exploded perspective view showing the stalk switch in FIG. 1. It is a perspective view of the stalk switch of the present invention. FIG. 4 is an exploded perspective view of the stalk switch in FIG. 3. It is a perspective view of the rotation cam seen from another angle. It is a perspective view of the operation knob seen from another angle. FIG. 3 is a partial cross-sectional view of the stalk switch.

  Hereinafter, a preferred embodiment of the present invention will be described with reference to FIGS.

  FIG. 3 is a perspective view of the stalk switch 10 of the present invention. 4 to 6 are exploded perspective views of the stalk switch 10 in FIG. FIG. 7 is a partial cross-sectional view of the stalk switch 10.

  As shown in FIGS. 3 and 4, the stalk switch 10 mainly includes a rod-shaped lever main body 20, a substantially cylindrical operation knob 30 located outside the lever main body 20, and a space between the lever main body 20 and the operation knob 30. The operation knob 30 and the rotation cam 40 can rotate integrally with the lever main body 20. Further, a circuit board 50 is further held on the lever body 20, and the circuit board 50 converts an operation on the stalk switch 10 into a control signal corresponding to each operation and transmits the control signal to a control mechanism (not shown).

  The lever main body 20, the operation knob 30, and the rotary cam 40 are all made of synthetic resin. The substantially cylindrical rotary cam 40 surrounds the outside of the lever body 20, and the substantially cylindrical operation knob 30 surrounds the outside of the rotary cam 40. As shown in FIGS. 5 and 6, the side wall of the operation knob 30 and the side wall of the rotary cam 40 are provided with irregular functional mechanisms such as holes and openings, and are therefore referred to as “substantially cylindrical”.

  As shown in FIGS. 3 and 7, a first end (right end in FIG. 4) 41 of the rotary cam 40 comes into contact with the contact portion 21 of the lever body 20, and a second end (left end in FIG. 4) of the rotary cam 40. And the lever body 20 are engaged by a first engagement mechanism described later. Thereby, the relative position of the rotary cam 40 in the longitudinal direction of the lever main body 20 is fixed, and the rotary cam 40 can rotate around the lever main body 20. In the present specification, the longitudinal direction of the lever main body 20 is a direction substantially parallel to the central axis (that is, the rotation axis) of the rotation cam 40 and the operation knob 30.

  As shown in FIG. 4, the first engagement mechanism has a concave portion 22 provided on the lever body 20 and a first protrusion 42 provided on the rotating cam 40 and engaged with the concave portion 22. The concave portion 22 is formed to extend along the circumferential direction of the lever body 20. Thus, when the first protrusion 42 is engaged with the recess 22, the rotating cam 40 can rotate along the extending direction (circumferential direction) of the recess 22 as shown in FIG. 7. However, the relative position of the rotary cam 40 in the longitudinal direction of the lever body 20 is fixed.

  FIG. 5 is a perspective view of the rotating cam 40 viewed from another angle. A substantially rectangular hole 43 is provided on the peripheral wall of the rotary cam 40, and the extending direction of the two long sides (the first long side 43 a and the second long side 43 b) of the hole 43 is defined by the center axis of the rotary cam 40. One short side (first short side 43c) of the hole 43 is connected to the root 42a of the first protrusion 42, and the other short side (second short side 43d) is connected to the first short side 43d. A certain gap is left between the projection 42 and the tip 42b. The substantially rectangular shape of the hole 43 means a shape in which two right angles on the second short side 43d side are chamfered.

  As shown in FIGS. 4 and 7, the first protrusion 42 is formed so as to extend from the base 42a to the tip 42b while being inclined toward the central axis. In addition, a protrusion 42c that protrudes toward the lever body 20 is formed on the tip end portion 42b of the first protrusion 42. Thereby, when attaching the rotating cam 40 to the lever main body 20, the distal end 42 b of the first projection 42 can be engaged with the recess 22 without applying a force to the lever main body 20 to the first projection 42. (See FIG. 7).

  As shown in FIG. 4, near the first end 41 (the right end in FIG. 4) of the rotary cam 40, a substantially pentagonal first convex portion 44 and a long second convex portion 45 are provided. The first end 31 is provided with a first opening 33 that engages with the first protrusion 44 and a second opening 34 that engages with the second protrusion 45. When the first projection 44 and the second projection 45 engage with the first opening 33 and the second opening 34, respectively, the first end 31 of the operation knob 30 and the first end 41 of the rotary cam 40 The operation knobs 30 come into contact with each other and cannot move to the first end 41 side of the rotary cam 40 (a state shown in FIG. 3).

  A second end (left end in FIG. 4) of the rotating cam 40 is engaged with the lever main body 20 by a second engaging mechanism. The second engaging mechanism includes a hole 43 provided in the rotating cam 40 and an operation knob. 30 and a second protrusion 32 that engages with the hole 43. As shown in FIG. 7, the second protrusion 32 has a protrusion 32 a protruding toward the rotary cam 40, and the protrusion 32 a has a second short side 43 d of the hole 43 and a tip 42 b of the first protrusion 42. And the projection 32a can engage with the second short side 43d. Thereby, the position of the operation knob 30 in the longitudinal direction of the lever main body 20 can be fixed, and the operation knob 30 can rotate around the lever main body 20 together with the rotating cam 40 in the circumferential direction.

  As shown in FIG. 6, on the inner wall of the operation knob 30, four ribs (a first rib 35 and a second rib 36) extending along the center axis of the operation knob 30 and protruding inward are provided. , A third rib 37 and a fourth rib 38). Four concave grooves (corresponding to the first rib 35 in FIGS. 4 and 5) respectively corresponding to the first rib 35, the second rib 36, the third rib 37, and the fourth rib 38 are provided on the outer wall of the rotary cam 40. (Only the second groove 47 corresponding to the first groove 46 and the second rib 36 is shown).

  Since the engagement between the operation knob 30 and the rotary cam 40 is made closer by the engagement between each rib and each concave groove, noise is generated due to the generation of vibration between the operation knob 30 and the rotary cam 40. It can be avoided that the operation feeling of the operation knob 30 is deteriorated.

  As shown in FIG. 5, on the peripheral wall of the rotary cam 40, the first protrusion 42 is located inside a region surrounded by four sides of the hole 43, and the first protrusion 42 and the hole 43 are shared. It constitutes an engaging portion.

  In the stalk switch 10 of the present embodiment, the first engagement mechanism and the second engagement mechanism share a partial area on the peripheral wall of the rotary cam 40, that is, the first engagement mechanism and the second engagement mechanism. Since the mechanism partially overlaps on the peripheral wall of the rotary cam 40, the first engagement mechanism and the second engagement mechanism are compared with the conventional case where the first engagement mechanism and the second engagement mechanism are provided separately. The space occupied can be reduced, and the usage rate of the surface area of the rotating cam 40 can be improved. As a result, the degree of freedom in setting other functional mechanisms, marks, and the like on the rotating cam 40 can be improved. Further, as compared with the case where the first protrusion 4a and the hole 4b shown in FIG. 2 are provided apart from each other, the dual-purpose engaging portion can be realized by installing only one hole in the rotating cam 40. In addition, it is possible to avoid a decrease in strength due to too many holes in a local area.

  In the stalk switch 10 of the present embodiment, the cylindrical rotary cam 40 is provided with two dual-purpose engaging portions. Thereby, the engagement state between the lever main body 20 and the rotary cam 40 and the engagement state between the rotary cam 40 and the operation knob 30 can be further stabilized.

  In the stalk switch 10 of the present embodiment, the two long sides 43 a and 43 b of the hole 43 are substantially parallel to the central axis of the cylindrical rotary cam 40. The first protrusion 42 is formed in a substantially rectangular shape, and has a root 42 a connected to the first short side 43 c of the hole 43. The first protrusion 42 extends inside the hole 43 along the long sides 43a and 43b of the hole 43 from the base 42a toward the second short side 43d. A projection 42c is formed on a tip 42b of the first projection 42. There are gaps between the first protrusion 42 and the second short side 43d and the two long sides 43a and 43b of the hole 43, respectively. The second protrusion 32 engages with the second short side 43 d of the hole 43, and at least a part of the second protrusion 32 (the portion of the protrusion 32 a) is connected to the tip 42 b of the first protrusion 42 and the hole 43. It can be accommodated in the gap between the second short side 43d. The first protrusion 42 and the second protrusion 32 protrude toward the lever body 20.

  As a result, the long sides 43a and 43b of the hole 43 are substantially parallel to the central axis of the cylindrical rotary cam 40, and the two short sides 43c and 43d of the hole 43 are rationally used to make the first protrusion. The engagement between the portion 42 and the concave portion 22 and the engagement between the second protrusion 32 and the hole 43 are realized. Therefore, the length of the short side of the hole 43 is the length occupied by the dual-purpose engaging portion on the circumferential length of the rotary cam 40. When it is necessary to install a functional mechanism such as a concave groove or a rib extending along the center axis direction of the rotating cam 40 on the rotating cam 40, of the circumferential length of the rotating cam 40, the hole 43 has Since it is sufficient to install the functional mechanism in a portion other than the portion overlapping the short side, the degree of freedom in installing these functional mechanisms can be improved.

  In particular, in a specific vehicle design, the external surface of the stalk switch 10 is severely restricted, and the outer diameter and wall thickness of the operation knob 30 are further reduced. In this case, in order to maintain the strength of the operation knob 30, it is preferable to provide a plurality of ribs on the inner wall of the operation knob 30 and provide a plurality of concave grooves on the outer wall of the rotating cam 40 as in the present embodiment. Further, it is preferable to leave as much installation space as possible in the circumferential direction of the operation knob 30 to improve the degree of freedom in installing these functional mechanisms.

(Modification)
The present invention is not limited to the above-described preferred embodiments, and those skilled in the art may make various changes, combinations, and substitutions of the components of the above-described embodiments within the technical scope or equivalents of the present invention. .

  For example, the number of dual-purpose engagement portions may be one or three or more. Further, it is preferable that a plurality of dual-purpose engaging portions are arranged at equal intervals in the circumferential direction of the rotating cam 40. For example, when two dual-purpose engagement portions are provided, it is preferable that the two dual-purpose engagement portions be symmetrically arranged with respect to the central axis of the cylindrical rotary cam 40.

  The shape of the hole 43 is not limited to this. For example, the structure may be such that the short side of the substantially rectangular hole 43 is substantially parallel to the central axis of the rotary cam 40. The length of the long side of the hole 43 is the length occupied on the circumference of the rotary cam 40 of the dual-purpose engaging portion. At this time, the length of the short side of the hole 43 is the length occupied in the central axis direction of the rotary cam 40 of the dual-purpose engaging portion. Thereby, the degree of freedom for installing another functional mechanism in the center axis direction of the rotating cam 40 can be improved.

(Note)
In one aspect of the embodiment of the present invention, the stalk switch is provided on both sides below the steering wheel, and has a rod-shaped lever main body, a substantially cylindrical operation knob located outside the lever main body, A stalk switch including a substantially cylindrical rotary cam located between the lever body and the operating knob, wherein the operating knob and the rotary cam can rotate integrally with the lever body. A first engagement mechanism for restricting a relative position between the lever body and the rotary cam, a second engagement mechanism for limiting a relative position between the operation knob and the rotary cam in a longitudinal direction of the lever body, And the first engagement mechanism and the second engagement mechanism may share a partial area on the peripheral wall of the rotary cam.

  Thereby, the first engagement mechanism and the second engagement mechanism share a part of the area on the peripheral wall of the rotary cam, that is, the first engagement mechanism and the second engagement mechanism partially cover the peripheral wall of the rotary cam. Overlap, the space occupied by the first engagement mechanism and the second engagement mechanism can be reduced as compared with the conventional case where the first engagement mechanism and the second engagement mechanism are separately provided, and the usage rate of the surface area of the rotating cam can be reduced. Can be improved. As a result, the degree of freedom in setting other functional mechanisms, marks, and the like on the rotating cam can be improved.

  The first engagement mechanism has a concave portion provided on the lever main body, and a first protrusion provided on the rotating cam and engaging with the concave portion. A substantially rectangular hole provided in the rotary cam, and a second protrusion provided in the operation knob and engaging with the hole. The first protrusion is formed on a peripheral wall of the rotary cam. The projection may be located inside a region surrounded by four sides of the hole, and the first projection and the hole may constitute a combined engagement portion.

  Thereby, when the first protrusion is located inside the area surrounded by the four sides of the hole, the conventional first protrusion and the hole are provided independently, and it is necessary to make holes separately. In comparison with the above, by providing only one hole in the rotating cam, the dual-purpose engaging portion can be realized, and it is possible to prevent the strength from being reduced due to too many holes in the local portion.

  Further, the rotary cam may be provided with two or more of the dual-purpose engaging portions.

  Thus, by providing two or more dual-purpose engagement portions, the engagement state between the lever main body and the rotation cam and the engagement state between the rotation cam and the operation knob can be further stabilized.

  In addition, a long side of the hole is substantially parallel to a center axis of the rotary cam, the first protrusion has a root connected to one short side of the hole, and the first protrusion projects from the root to the hole. A gap extending between the first protrusion and the other short side and the two long sides of the hole, and a tip of the first protrusion. A protrusion may be formed on the portion.

  Further, the second protrusion engages with the other short side of the hole, and at least a part of the second protrusion includes the tip of the first protrusion and the other of the hole. It may be accommodated in the gap between the short side.

  In addition, the first protrusion and the second protrusion may protrude toward the lever body.

  Thereby, the long side of the hole and the central axis of the cylindrical rotary cam are substantially parallel to each other, and the two short sides of the hole are rationally used, so that the engagement between the first protrusion and the concave portion and the first The engagement between the two protrusions and the holes is realized. For this reason, the length of the short side of the hole is the length occupied by the dual-purpose engaging portion on the circumferential length of the rotary cam. When it is necessary to install a functional mechanism such as a concave groove or a rib extending along the center axis direction of the rotating cam, the rotating cam overlaps the short side of the hole in the circumferential length of the rotating cam. Since it is sufficient to install the functional mechanism in a part other than the part, the degree of freedom in installing these functional mechanisms can be improved.

  Although the stalk switch has been described in the embodiments and the examples, the present invention is not limited to the embodiments and the examples. Various modifications and changes are possible within the scope of the present invention described in the claims.

  This application claims the priority of Patent Application No. 20171021621.33 filed with the China Patent Office on April 28, 2017, the entire content of which is incorporated herein by reference.

DESCRIPTION OF SYMBOLS 10 Stoke switch 20 Lever main body 21 Contact part 22 Depression 30 Operation knob 31 First end of operation knob 32 Second projection 32a Projection 33 First opening 34 Second opening 35 First rib 36 Second rib 37 Third Rib 38 Fourth rib 40 Rotating cam 41 First end 42 of rotating cam 42 First projection 42a Root 42b Tip 42c Projection 43 Hole 43a First long side 43b Second long side 43c First short side 43d Second short Side 44 First convex portion 45 Second convex portion 46 First concave groove 47 Second concave groove 50 Circuit board

Claims (6)

A rod-shaped lever body, a substantially cylindrical operation knob located outside the lever body, and a substantially cylindrical rotary cam located between the lever body and the operation knob provided on both sides below the steering wheel; And a stalk switch in which the operation knob and the rotating cam can be integrally rotated with respect to the lever main body,
A first engagement mechanism that limits a relative position between the lever body and the rotating cam in a longitudinal direction of the lever body;
A second engagement mechanism that limits a relative position between the operation knob and the rotating cam in a longitudinal direction of the lever body,
The stalk switch, wherein the first engagement mechanism and the second engagement mechanism share a partial area on a peripheral wall of the rotary cam. The first engagement mechanism includes a concave portion provided in the lever main body, and a first protrusion provided in the rotary cam and engaging with the concave portion,
The second engagement mechanism includes a substantially rectangular hole provided in the rotary cam, and a second protrusion provided in the operation knob and engaging with the hole.
On the peripheral wall of the rotating cam, the first protrusion is located inside a region surrounded by four sides of the hole,
2. The stalk switch according to claim 1, wherein the first protrusion and the hole form a dual-purpose engaging portion.   The stalk switch according to claim 2, wherein the rotary cam is provided with two or more of the dual-purpose engaging portions. The long side of the hole is substantially parallel to the center axis of the rotating cam,
The first protrusion has a root connected to one short side of the hole, and extends from the root toward the other short side of the hole;
A gap exists between the first protrusion and the other short side and the two long sides of the hole,
The stalk switch according to claim 2, wherein a protrusion is formed at a tip of the first protrusion. The second protrusion engages with the other short side of the hole,
The Stoke switch according to claim 4, wherein at least a part of the second protrusion is accommodated in a gap between the tip of the first protrusion and the other short side of the hole.   The stalk switch according to claim 2, wherein the first protrusion and the second protrusion protrude toward the lever body.

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