JP2015138363A - Handling device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a handling device which prevents engaging due to namely gear jumping during assembly.SOLUTION: A handling device comprises: a gear shaft 20 inserted into a shaft attachment cylindrical part 18 of a base member; and a moderation feeling generation part 21 for generating moderation feeling following to rotation of the gear shaft 20. The gear shaft 20 has a drive gear 20g, and a driven gear 22g of the base member and the drive gear 20g are fitted and drive. The moderation feeling generation part 21 comprises: a moderation feeling generation groove part 18d of the shaft attachment cylindrical part 18; a cylindrical holding member 20h projecting from the gear shaft 20; and an elastic contact member 26 elastically contacting the moderation feeling generation groove part 18d, and being stored and held so as to enter and go out from the cylindrical holding member 20d freely. The handling device has a temporary stop structure 28 for temporarily holding the gear shaft 20 in midway of insertion of the gear shaft 20, and during temporary stop of the gear shaft 20, the drive gear 20g and driven gear 22g are fitted at least partially.

Description

  The present invention relates to a dial type operation device in which a gear shaft is rotatably assembled to a base member.

  An operation device in which a dial-type rotary operation knob (rotary knob) is arranged on the front side of the device is often used. In such an operation device, a gear shaft is inserted and meshed with a gear of an interlocking member such as an arm, and an operation knob is inserted and connected to the gear shaft from the front side of the device.

  In such an operating device, grooves are arranged on the peripheral wall of the base member constituting the operating device, and a click feeling (moderation feeling) when operating the operating knob is achieved by a spring and a ball attached to the gear shaft and the groove. A dial type operating device has been proposed (see, for example, Patent Document 1).

JP-A-10-301651

  By the way, in such a conventional operating device, when the gear shaft is attached to the base member, it is necessary to incorporate a spring and a ball between the gear shaft and the base member. For this reason, the operator concentrates on the assembly of the spring and the ball, and is careful enough to incorporate the gear shaft gear (drive gear) and the arm gear (driven gear) so that they are in the correct mutual position. Difficult to pay. As a result, the gear of the gear shaft and the gear of the interlocking member may be engaged with each other in a so-called gear jump state without being engaged at the correct position.

  Then, this invention makes it a subject to provide the operating device which prevented meshing | engagement by what is called a gear jump during an assembly.

  In order to achieve the above object, the present invention is inserted and arranged inside a shaft mounting cylinder provided in a base member, and is rotatable with respect to the shaft mounting cylinder by a shaft shaft support and cannot move in the axial direction. A gear shaft that is locked and held, and a moderation feeling generating unit that generates a moderation feeling in the gear shaft as the gear shaft rotates. A drive gear is provided on the gear shaft, and a driven gear and a drive gear provided on an arm member attached to the base member are configured to be fitted and driven. Further, a moderation sensation generating portion is provided in a radial direction from the gear shaft and a moderation sensation generating groove portion extending in the axial direction along the circumferential direction with respect to the inner peripheral surface of the shaft mounting cylinder portion. A cylindrical holding member and a portion for providing a moderation sensation generating groove on the inner peripheral surface of the cylindrical portion for shaft mounting by being accommodated and held inside the cylindrical holding member so as to be freely inserted and removed through an elastic body. And an elastic contact member that can be elastically contacted by the elastic force of the elastic body. The operating device has a temporary stop structure capable of temporarily holding the gear shaft in the middle of inserting the gear shaft into the base member, and when the gear shaft is temporarily stopped, the drive gear and the driven gear are at least partially engaged. Become.

  According to the present invention, it is possible to provide an operating device that prevents so-called gear jumping and meshing during assembly.

It is a front perspective view of the operating device of a 1st embodiment. It is a front perspective view of the base member which constitutes the operating device of a 1st embodiment. (A)-(c) is the front view, front perspective view, and plane sectional view which respectively show the relative position of the base member and gear shaft in the middle of the assembly of the operating device of 1st Embodiment. (A)-(c) is the front view, front perspective view, and plane sectional view which respectively show the relative position of the base member and gear shaft after the assembly of the operating device of 1st Embodiment. (A)-(c) is the operating device of 2nd Embodiment, respectively, and is the front view, rear perspective view, and front perspective view of the cylinder part for shaft attachment of a base member. (A), (b) is the operating device of 2nd Embodiment, respectively, and is the rear view and top view of the cylinder part for shaft attachment of a base member. (A)-(c) is the front view, front perspective view, and top view which respectively show the relative position of the base member and gear shaft in the middle of the assembly of the operating device of 2nd Embodiment. (A)-(c) is the front view, front perspective view, and top view which respectively show the relative position of the base member and gear shaft in the middle of the assembly of the operating device of 2nd Embodiment. (A)-(c) is the front view, front perspective view, and top view which respectively show the relative position of the base member and gear shaft in the middle of the assembly of the operating device of 2nd Embodiment. It is a top view which shows the relative position of the base member and gear shaft after the assembly of the operating device of 2nd Embodiment. (A)-(c) is side sectional drawing explaining the relative position of the base member at the time of assembling the operating device of 3rd Embodiment, and a gear shaft, respectively. (A), (b) is the front view after the assembly of the operating device of 3rd Embodiment, respectively, and a front perspective view.

  Embodiments of the present invention will be described below with reference to the accompanying drawings. In the following description, the same or similar components as those already described are denoted by the same or similar reference numerals, and detailed description thereof will be omitted as appropriate.

  In addition, it should be noted that the drawings are schematic and the dimensional ratios and the like are different from actual ones. Therefore, specific dimensional ratios and the like should be determined in consideration of the following description. Of course, the drawings include portions having different dimensional relationships and ratios.

  The following embodiments are exemplifications for embodying the technical idea of the present invention, and the embodiments of the present invention are described below in terms of the material, shape, structure, arrangement, etc. of the components. It is not something specific. The embodiments of the present invention can be implemented with various modifications without departing from the scope of the invention.

  In the embodiment shown below, only a bevel gear is depicted as a gear in the drawings, but other types of gears such as a spur gear may be used.

  Further, in the embodiment described below, an operation device that is particularly suitable for being incorporated in an air conditioning unit that is mounted in a vehicle and supplies conditioned air to the inside of the vehicle will be described, but of course, it can be applied to an operation device other than a vehicle. Is possible.

[First Embodiment]
First, the first embodiment will be described. FIG. 1 is a front perspective view of an operating device of the present embodiment (hereinafter referred to as the present embodiment). FIG. 2 is a front perspective view of the base member constituting the operating device of the present embodiment. 3A to 3C are respectively a front view, a front perspective view, and a plan sectional view showing the relative positions of the base member and the gear shaft during the assembly of the operating device of the present embodiment. 4A to 4C are respectively a front view, a front perspective view, and a plan sectional view showing the relative positions of the base member and the gear shaft after assembly of the operating device of the present embodiment.

  The operation device 10 according to the present embodiment is disposed in the interior of an automobile or the like, and includes a base member 12 and a display panel 14 assembled on the front side (operation side) of the base member 12. A dial type operation knob 16 is attached to the display panel 14.

  The operating device 10 includes a shaft mounting cylinder portion 18 provided on the base member 12, a gear shaft 20 inserted and disposed inside the shaft mounting cylinder portion 18, and the gear shaft 20 as the gear shaft 20 rotates. A moderation feeling generating unit 21 for generating a moderation feeling. The gear shaft 20 is locked and held so as to be rotatable and immovable in the axial direction by a shaft shaft support portion 18s (see FIGS. 5 and 6 to be described later) with respect to the shaft mounting cylinder portion 18. 2 shows the moderation feeling generating units 21a and 21b. Since the two functions are the same except that the gear shaft rotation angle for generating the moderation feeling (click feeling) is different, the following description will explain the moderation feeling generation. The unit 21a will be described as the moderation generating unit 21, and the description of the moderation generating unit 21b will be omitted.

  The gear shaft 20 is provided with a drive gear 20g, and the driven gear 22g provided on the arm member 22 (see FIGS. 3C and 4C) attached to the base member 12 and the drive gear 20g are fitted. It is configured to drive.

  The moderation sensation generating portion 21 is provided in a radial direction from the gear shaft 20 and a moderation sensation generating groove portion 18d extending in the axial direction along the circumferential direction with respect to the inner peripheral surface of the shaft mounting cylinder portion 18. The projecting cylindrical holding member 20h and the cylindrical holding member 20h are accommodated and held in the cylindrical holding member 20h via an elastic body 24 (for example, a coil spring) so as to be freely inserted and removed. An elastic contact member 26 (for example, a spherical member) that can be elastically contacted by the elastic force of the elastic body 24 is provided in a portion where the moderation generating groove 18d is provided. The moderation generating groove 18 d is formed along the central axis of the shaft mounting cylinder 18, and the elastic contact member 26 is rotated as the knob 16 rotates, that is, as the gear shaft 20 rotates. A moderation feeling (click feeling) is transmitted to the knob 16 when contacting each groove.

  The operating device 10 has a temporary stop structure 28 that can temporarily hold the gear shaft 20 while the gear shaft 20 is being inserted into the base member 12. When the gear shaft 20 is temporarily stopped by the temporary stop structure 28, The drive gear 20g provided on the shaft 20 and the driven gear 22g provided on the arm member 22 are at least partially engaged (for example, as shown in FIG. 3C, the drive gear portion 20gp The driven gear portion 22gp is in a fitted state (engaged state)).

  In the present embodiment, the temporary stop structure 28 is provided on the inner peripheral surface of the shaft mounting cylinder portion 18. The temporary stop structure 28 has a resistance that becomes an insertion resistance when the fitting claw 30 (see FIGS. 3C and 4C) provided on the gear shaft 20 is inserted into the shaft mounting cylinder portion 18. It is part 31.

  In the present embodiment, the gear shaft 20 has at least two extending portions 32 that extend in a rod shape from the outer peripheral portion on the gear shaft proximal end side toward the gear shaft distal end side and can be elastically deformed in the gear shaft radial direction. The fitting claw 30 is formed on the distal end side of each extending portion 32 and extends to the outer peripheral side of the gear shaft. The fitting claw 30 has a slope 30s that gradually spreads outward in the gear shaft radial direction from the gear shaft distal end side to the gear shaft proximal end side.

  The shaft mounting cylinder portion 18 has a short cylindrical fitting portion 34 formed at a portion where the gear shaft 20 is inserted. The fitting part 34 extends from the shaft mounting cylinder part 18 to the gear shaft insertion direction side, and a convex part 34p is formed at the tip part so as to project radially inward.

  In addition, the stop position where the gear shaft 20 is temporarily stopped by the temporary stop structure 28 is a position where the edge 18e of the shaft mounting cylinder portion 18 and the edge 20e of the cylindrical holding member 20h are close to each other.

  In addition, a notch portion 18c that matches the opening 20m of the cylindrical holding member 20h is provided in the shaft mounting cylinder portion 18 at a stop position where the gear shaft 20 is temporarily stopped by the temporary stop structure 28.

(Function, effect)
Hereinafter, the assembly of the operating device 10 will be described. To assemble the operating device 10, first, the gear shaft 20 is inserted from the distal end side into the shaft mounting cylinder portion 18 of the base member 12, and the fitting claw 30 enters the fitting portion 34 of the shaft mounting cylinder portion 18. . Then, the insertion of the gear shaft 20 is temporarily stopped when the fitting claw 30 comes into contact with the convex portion 34p of the fitting portion 34 (see FIG. 3). Therefore, this contact position is the stop position described above. Moreover, at this stop position, the drive gear 20g of the gear shaft 20 and the driven gear 22g of the arm member 22 are at least partially engaged (see FIG. 3C).

  Then, after confirming that the gear meshing state is normal, the elastic body 24 is inserted into the opening 20m of the cylindrical holding member 20h from the notch 18c, and the elastic contact member 26 is inserted into the diameter of the gear shaft of the elastic body 24. It is located at the outer end of the direction. Then, the gear shaft 20 is further pushed in while pushing the elastic contact member 26 into the cylindrical holding member 20h. As a result, the elastic contact member 26 is in a contracted state and the elastic contact member 26 abuts against the inner peripheral surface (moderation feeling generating portion 21) of the shaft mounting cylindrical portion 18 to restrict the movement outward in the radial direction. The inclined surface 30s of the joint claw 30 is pressed by the convex portion 34p, and the extension portion 32 bends inward in the gear shaft radial direction. The claw 30 is in a state where it cannot be removed from the convex portion 34p (see FIG. 4). At this time, the gear shaft 20 is not inserted deeper than this.

  That is, after confirming that the drive gear 20g and the driven gear 22g are properly meshed with each other, the elastic shaft 26 is pushed into the moderation sensation generating portion 21 by further pushing the gear shaft 20 from the stop position (temporary stop position). Since the contacted state is established, the so-called gear jumping during the assembly of the operating device 10 is reliably prevented.

  In the present embodiment, the temporary stop structure 28 is provided on the inner peripheral surface of the shaft mounting cylinder 18, and the fitting claw 30 provided on the gear shaft 20 is being inserted into the shaft mounting cylinder 18. It plays a role as a resistance portion 31 that becomes an insertion resistance. Therefore, even with a simple configuration, the insertion of the gear shaft 20 can be reliably stopped at the temporary stop position.

  In addition, the stop position where the gear shaft is temporarily stopped by the temporary stop structure 28 is a position where the edge 18e of the shaft mounting cylinder portion 18 and the edge 20h of the cylindrical holding member 20h are close to each other. Therefore, the distance for moving the gear shaft 20 from the temporary stop position to the assembly completion position (see FIG. 4) is short, and the elastic body 24 and the elastic contact member 26 are inserted into the cylindrical holding member 20h. Easy to assemble.

  In addition, a notch portion 18c that matches the opening 20m of the cylindrical holding member 20h is provided in the shaft mounting cylinder portion 18 at a stop position where the gear shaft 20 is temporarily stopped by the temporary stop structure 28. Therefore, when the elastic body 24 and the elastic contact member 26 are inserted into the cylindrical holding member 20h, the notch 18c serves as a guide, so that the elastic body 24 and the elastic contact member 26 are held in the cylindrical shape. It is configured to be more easily inserted into the member 20h.

  In addition, it may be set as the structure which replaces with the convex part 34p in the fitting part 34, and the fitting nail | claw 30 latches to this recessed part, and the latching form is not specifically limited.

[Second Embodiment]
Next, a second embodiment will be described. FIGS. 5A to 5C are a front view, a rear perspective view, and a front perspective view, respectively, of the cylinder portion for attaching the shaft of the base member in the operating device of the present embodiment. FIGS. 6A and 6B are a rear view and a plan view, respectively, of the cylinder portion for attaching the shaft of the base member in the operating device of the present embodiment. FIGS. 7A to 7C are a front view, a front perspective view, and a plan view showing the relative positions of the base member and the gear shaft during the assembly of the operating device of the present embodiment, respectively. FIGS. 8A to 8C are a front view, a front perspective view, and a plan view showing the relative positions of the base member and the gear shaft during the assembly of the operating device of the present embodiment, respectively. FIGS. 9A to 9C are a front view, a front perspective view, and a plan view showing the relative positions of the base member and the gear shaft during the assembly of the operating device of the present embodiment, respectively. FIG. 10 is a plan view showing a relative position between the base member and the gear shaft after the operation device of the present embodiment is assembled.

  The operating device of the present embodiment is provided with a gear shaft 50 instead of the gear shaft 20 as compared with the first embodiment. The gear shaft 50 is a gear shaft 20 provided with a protrusion 52 extending outward in the radial direction. In addition, the base member includes a shaft mounting cylinder portion 48 capable of guiding the protrusion 52 instead of the shaft mounting cylinder portion 18.

  In this embodiment, a temporary stop structure 58 is provided instead of the temporary stop structure 28. The temporary stop structure 58 includes a first contact surface 60 provided on the inner peripheral surface of the shaft mounting cylinder portion 48 and a groove portion 62 in which the protrusion 52 provided on the gear shaft 50 contacts the first contact surface 60. When the gear shaft 50 is temporarily stopped by the temporary stop structure 58, the drive gear 20g and the driven gear 22g are at least partially engaged.

  The groove 62 is a groove having a crank shape with respect to the gear shaft insertion direction. The groove 62 is parallel to the gear shaft insertion direction and has a first groove 64 that guides the protrusion 52 to the first contact surface 60 and a first contact surface 60 that extends in a direction perpendicular to the gear shaft insertion direction. A third groove having a second abutment surface 70 which becomes the insertion position of the elastic body 24 and the elastic contact member 26 (both see FIG. 2) by the abutment of the two groove portions 66 and the projection 52 in parallel with the gear shaft insertion direction. And a groove portion 68.

  Further, in the present embodiment, the notch 18c that matches the opening 20m of the cylindrical holding member 20h is located at the position where the gear shaft stops by the protrusion 52 coming into contact with the second contact surface 70. Part 48 is formed.

(Function, effect)
Hereinafter, assembly of the operating device according to the present embodiment will be described. In order to assemble the operating device in the present embodiment, first, as in the first embodiment, the gear shaft 50 is inserted into the shaft mounting cylinder 48 from the distal end side, and the position of the protrusion 52 is the position of the first groove 64. (See FIG. 7).

  Then, by further inserting the gear shaft 50, the protrusion 52 is caused to enter the first groove 64. As a result, the protrusion 52 comes into contact with the first contact surface 60 and the entry stops (see FIG. 8, temporarily stopped by the temporary stop structure 58). Furthermore, the protrusion 52 is caused to enter the second groove 66 by rotating the gear shaft 50. As a result, the protrusion 52 comes into contact with the second contact surface 70 and the entry stops (see FIG. 9). Here, the drive gear of the gear shaft 50 is in any stop position, that is, in any position where the protrusion 52 is in contact with either the first contact surface 60 or the second contact surface 70. 20 g meshes with the driven gear 22 g of the arm member 22.

  Then, when the protrusion 52 comes into contact with the second contact surface 70 and the rotation of the gear shaft 50 stops, it is confirmed that the meshing state of the gear is normal, and the cylindrical holding member 20h extends from the notch 18c. The elastic body 24 is inserted into the opening 20m, and the elastic contact member 26 is positioned at the outer end of the elastic body 24 in the radial direction of the gear shaft.

Then, the gear shaft 50 is further inserted while pushing the elastic contact member 26 into the cylindrical holding member 20h (see FIG. 10). As a result, as in the first embodiment, the elastic contact member 26 is in a contracted state, and the elastic contact member 26 contacts the moderation sensation generating portion 21 of the shaft mounting cylinder portion 48 to restrict the movement outward in the radial direction. When the fitting claw 30 is inserted through the fitting portion, the extension portion 32 almost returns to the bending state, and the fitting claw 30 does not come out of the fitting portion.
As described above, in the present embodiment, it is confirmed that the driving gear 20g and the driven gear 22g are properly meshed with each other by the protrusion 52 moving along the groove, and then the stop position (temporary stop). Since the elastic contact member 26 is brought into contact with the moderation feeling generating portion 21 by further inserting the gear shaft 50 from the position), as in the first embodiment, the gears 50 mesh with each other during the assembly of the operating device. Is reliably prevented.

  In the temporary stop structure 58, the first contact surface 60 provided on the inner peripheral surface of the shaft mounting cylinder portion 48 and the protrusion 52 provided on the gear shaft 50 contact the first contact surface 60. It is comprised with the groove part 62. FIG. Therefore, the insertion of the gear shaft 50 can be surely temporarily stopped with a simple configuration.

  The groove portion 62 is a groove portion having a crank shape with respect to the gear shaft insertion direction. The groove portion 62 is parallel to the gear shaft insertion direction and guides the protrusion 52 to the first contact surface 60. The elastic body 24 and the elastic contact member 26 by the second groove 66 having the first contact surface 60 extending in the direction orthogonal to the gear shaft insertion direction and the projection 52 in contact with the gear shaft insertion direction. And a third groove portion 68 having a second contact surface 70 to be an insertion position. Accordingly, since the gear shaft 50 is temporarily held by the shaft mounting cylinder 48 even at the insertion position of the elastic body 24 and the elastic contact member 26, the elastic body 24 and the elastic contact member 26 are placed in the cylindrical holding member 20h. Easy to insert.

  Further, since the first contact surface 60 constitutes the temporary stop structure 58, it is possible to adopt a configuration in which the hook-shaped convex portion 34p described in the first embodiment is not provided.

[Third Embodiment]
Next, a third embodiment will be described. FIGS. 11A to 11C are side cross-sectional views illustrating the relative positions of the base member and the gear shaft when assembling the operating device of the present embodiment. 12A and 12B are a front view and a front perspective view, respectively, after assembling the operating device of the present embodiment.

  Compared with the first embodiment, the operating device according to the present embodiment includes a shaft mounting tube portion 88 provided with a resilient contact member guide portion 86 instead of the notch portion 18c. The elastic contact member guide portion 86 has an inclined surface 86 s that is gradually inclined toward the central axis side of the shaft mounting tube portion 88 with respect to the gear shaft insertion direction F.

  In the present embodiment, when assembling the operating device, the elastic contact member 26 is disposed at the outer end of the elastic body 24 in the radial direction of the gear shaft in the cylindrical holding member 90h (similar to the cylindrical holding member 20h). The gear shaft 90 (similar to the gear shaft 20) is pushed as it is in the gear shaft insertion direction F, so that it is possible to prevent so-called gear jumping and to prevent the gear shaft 90 from being temporarily stopped. It is possible.

DESCRIPTION OF SYMBOLS 10 Operating device 12 Base member 18 Shaft mounting cylinder part 18c Notch part 18d Moderation feeling groove part 18e Edge 18s Shaft support part 20 Gear shaft 20e Edge 20g Drive gear 20
20h Cylindrical holding member 20m Opening portion 21 Moderation feeling generating portion 22 Arm member 24 Elastic body 26 Elastic contact member 28 Temporary stop structure 30 Fitting claw 31 Resistance portion 48 Shaft mounting cylinder portion 50 Gear shaft 52 Protruding portion 58 Temporary stop structure 60 First contact surface 62 Groove portion 64 First groove 0 portion 66 Second groove portion 68 Third groove portion 70 Second contact surface 88 Shaft mounting tube portion 90 Gear shaft 90h Tubular holding member

Claims (6)

A gear shaft that is inserted and arranged inside a shaft mounting tube portion provided on the base member, and is rotatably held by a shaft shaft support portion with respect to the shaft mounting tube portion so as to be immovable in the axial direction;
A moderation sensation generating unit that generates a sense of moderation in the gear shaft as the gear shaft rotates,
The gear shaft is provided with a drive gear, and the driven gear provided on the arm member attached to the base member and the drive gear are configured to be fitted and driven.
The moderation generating part is
A groove portion for generating a sense of moderation extending in the axial direction provided in a plurality along the circumferential direction with respect to the inner peripheral surface of the cylindrical portion for shaft attachment,
A cylindrical holding member projecting radially from the gear shaft;
The cylindrical holding member is housed and held through an elastic body so as to be freely inserted and removed, so that the elastic force of the elastic body is provided in a portion where the moderation sensation generating groove is provided on the inner peripheral surface of the shaft mounting cylinder. In the operating device having a resilient contact member that can be resiliently contacted by,
Having a temporary stop structure capable of temporarily holding the gear shaft in the middle of inserting the gear shaft into the base member;
When the gear shaft is temporarily stopped, the driving gear and the driven gear are at least partially engaged with each other. The pause structure is
The fitting claw provided on the inner peripheral surface of the shaft mounting tube portion and provided on the gear shaft is a resistance portion that becomes an insertion resistance during insertion into the shaft mounting tube portion. Item 2. The operating device according to Item 1.   The stop position at which the gear shaft is temporarily stopped by the temporary stop structure is a position where an edge of the cylindrical portion for shaft attachment and an edge of the cylindrical holding member are close to each other. The operating device described. The pause structure is
The first abutment surface provided on the inner peripheral surface of the shaft mounting cylinder portion, and a groove portion in which a protrusion provided on the gear shaft abuts on the first abutment surface. The operating device according to claim 1. The groove is a groove that is crank-shaped with respect to the gear shaft insertion direction,
A first groove that is parallel to the gear shaft insertion direction and guides the protrusion to the first contact surface;
A second groove portion extending in a direction perpendicular to the gear shaft insertion direction and having the first contact surface;
A third groove portion having a second abutment surface parallel to the gear shaft insertion direction and serving as an insertion position for the elastic body and the elastic contact member by the abutment of the projection portion;
The operating device according to claim 4, comprising:   6. The shaft mounting tube portion is provided with a notch that matches the opening of the tubular holding member at a stop position where the gear shaft is temporarily stopped by the temporary stop structure. The operating device according to any one of the above.

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