JP6858528B2 - Register dial knob device - Google Patents

Description

The present invention relates to a dial knob device for a register for rotating a damper plate, a movable louver, a barrel, or the like in a register used for an air outlet for ventilation or air conditioning in an automobile interior or the like.

As an air-conditioning register for automobiles, a horizontally movable louver and a vertically movable louver are arranged in the bezel in order to adjust the wind direction, etc. A register is used in which the damper plate to be adjusted can be opened and closed.

In the damper mechanism used in this register, the damper plate is pivotally supported in the ventilation path, and the dial knob for manual operation is pivotally supported on the front side of the retainer, and the gear provided at the rear of the dial knob. , The damper arm is linked to the shaft of the damper plate, and the damper plate is rotated by operating the dial knob to stop the blowing air or adjust the air volume.

By the way, when the damper plate is rotated by manually operating the dial knob, if it moves too lightly, it may be difficult to stop at an arbitrary position, and the damper plate may be naturally caused by wind pressure or vibration. There is a problem that it rotates.

In order to eliminate such a problem, a load applying spring that applies a load to the rotating shaft is fitted to a bearing that supports the rotating shaft of the dial knob, and the load applying spring is applied when the dial knob is rotated. A register that applies an operating load by the frictional resistance of the rotating shaft is known in Patent Document 1 and the like below.

The register according to Patent Document 1 has a rotating shaft that can rotate around an axis, a bearing that can support the rotating shaft, and a load applying member that can apply a load to the rotating shaft, and the load is applied from the bearing. It is applied to the rotating shaft via a load applying member (leaf spring member). The rotation shaft of the register is configured such that when the urging portion of the leaf spring member is inserted in the recess provided in the rotation shaft, the load by the leaf spring member is not applied. When assembling this register, the concave portion of the rotating shaft is fitted to the urging portion of the leaf spring member, so that the rotating shaft does not get caught in the urging portion of the leaf spring member. Therefore, this register is used as much as possible. It can be easily assembled.

Japanese Unexamined Patent Publication No. 2013-252832

However, the register requires a step of adjusting the recess of the rotating shaft, which prevents the load of the leaf spring member from being applied to the rotating shaft, at a position where the load of the leaf spring member is adjusted to the urging portion of the leaf spring member. To. In other words, the above register is difficult to assemble unless the concave portion of the rotation shaft of the dial knob and the urging portion for applying the load of the leaf spring member which is the load applying member are adjusted so as to match. If they do not match, the rotating shaft of the dial knob is caught in the urging portion of the leaf spring member, and there is a problem that it is difficult to assemble.

The leaf spring member is provided with a gap between the leaf spring member and the mounting portion in order to facilitate mounting of the leaf spring member on the mounting portion. Further, the leaf spring member is formed by bending the spring body of the strip-shaped metal plate, and is housed in the mounting portion in a state where the fulcrum is not fixed. Therefore, the leaf spring member is easily elastically deformed and flexed by the stress received during the rotation operation of the dial knob. When the leaf spring member bends due to stress when using the dial knob, the gap between the leaf spring member and the mounting portion expands, and the leaf spring member moves within this gap. Therefore, in the dial knob, the leaf spring member bends at the initial movement of the rotation operation, so that the gap between the leaf spring member and the inner wall of the mounting portion expands, and the leaf spring member moves within this gap. It will be easier to do. For this reason, the dial knob has a problem that a slight "rattling" or "fluttering" feeling is generated at the initial movement of the rotation operation, and the operation feeling of the dial knob is hindered.

The present invention solves the above-mentioned problems, and provides a register dial knob device capable of improving the operation feeling when the dial knob is rotated while improving the dial knob mounting workability. The purpose is.

The dial knob device of the register according to the present invention has a first knob support portion provided on the retainer side of the register, a dial knob, and a dial knob attached to the dial knob so that the first knob support portion can be rotatably fitted. With a boss part that is
A leaf spring member provided with an urging portion is housed in the spring accommodating portion provided on the retainer side.
A circumferential wall portion is provided on the boss portion, and the boss portion is provided with a circumferential wall portion.
With the boss portion and the first knob support portion fitted, the outer peripheral surface of the circumferential wall portion abuts on the urging portion of the leaf spring member housed in the spring accommodating portion.
In the register dial knob device
A cylindrical first support shaft portion is provided in the center of the first knob support portion, a circular hole-shaped bearing portion is provided in the center of the boss portion, and the diameter of the cylinder of the first support shaft portion is the bearing portion. Formed smaller than the diameter of the circular hole,
When the bearing portion of the dial knob is fitted into the first support shaft portion of the retainer, a gap is provided between the bearing portion and the first support shaft portion so that the dial knob can move.
A knob cover is provided to cover the dial knob from the outside.
The knob cover is provided with a second knob support portion, a cylindrical second support shaft portion is provided in the center of the second knob support portion, and the first support shaft portion is provided in the cylindrical direction of the second support shaft portion. Is provided with a bearing hole through which
By inserting the second support shaft portion of the knob cover into the gap outside the first support shaft portion, the outer peripheral surface of the circumferential wall portion of the boss portion of the dial knob becomes the leaf spring member. It is characterized in that the bearing portion of the dial knob is rotatably supported by the second support shaft portion in contact with the urging portion.

According to the dial knob device of the register of the present invention, when the bearing portion of the boss portion of the dial knob is attached to the first support shaft portion of the first knob support portion of the retainer, between the bearing portion and the first support shaft portion. In addition, since there is a gap in which the dial knob can move, the dial knob can be mounted by shifting it from the first knob support portion by the amount of the gap. Therefore, the dial knob can be attached without the outer peripheral surface of the circumferential wall portion of the boss of the dial knob coming into contact with the urging portion of the leaf spring member accommodated in the spring accommodating portion, and the attachment workability is improved. be able to.

Further, by inserting the bearing hole of the second support shaft portion of the knob cover into the gap outside the first support shaft portion, the gap in which the dial knob can be idle is closed by the second support shaft portion. As a result, the bearing portion of the dial knob is rotatably supported by the second support shaft portion without any gap (rattling), so that the operation feeling during the rotation operation of the dial knob can be improved.

Here, in the dial knob device of the register, the leaf spring member is provided with U-shaped portions at both ends by bending the spring body of the strip-shaped metal plate, and the urging portion having a convex portion at the center. A first accommodating portion and a second accommodating portion accommodating the U-shaped portions on both sides of the leaf spring member are provided on both sides of the spring accommodating portion, and the first accommodating portion or the second accommodating portion is provided. An outer wall surface may be provided on the outside of any one of the accommodating portions, and a notch may be provided on the outside of the other of the first accommodating portion or the second accommodating portion.

According to this, an outer wall surface is provided on the outside of either the first accommodating portion or the second accommodating portion provided on both sides of the spring accommodating portion, and a notch portion is provided on the outside of the other accommodating portion. Has no walls. Therefore, since the spring accommodating portion of the dial knob device of the present invention is not an accommodating portion surrounded by a wall surface, the leaf spring member is inserted from a substantially vertical direction with respect to the spring accommodating portion when the leaf spring member is attached. Since it can be mounted not only from the notch but also from the notch, the degree of freedom is increased and the mounting workability can be further improved. Further, an outer wall surface is provided on the outside of either the first accommodating portion or the second accommodating portion of the spring accommodating portion, and is surrounded by the wall surface except for the notch portion. Therefore, in the spring accommodating portion of the dial knob device of the present invention, when the leaf spring member is fitted into the spring accommodating portion, the leaf spring member does not easily come off from the spring accommodating portion, and the mounting workability can be further improved. ..

Further, the corner portion inside the tip of the second support shaft portion may be chamfered to provide a chamfered portion. According to this, when the knob cover is attached, the tip of the second support shaft portion can be attached by the chamfered portion without being caught by the tip of the first support shaft portion of the first knob support portion. Therefore, the mounting workability can be further improved.

Further, the corner portion on the outer outer peripheral side of the circular hole-shaped bearing portion may be chamfered to provide a chamfered portion. According to this, when the knob cover is attached, the tip of the second support shaft portion is guided to the same axis as the bearing portion by the inclination of the chamfered portion, so that the bearing portion of the dial knob is the second support shaft portion. It is guided to the same axis as, and is rotatably supported. As a result, it is not necessary to adjust the mounting position of the bearing portion of the dial knob, and the mounting workability can be further improved.

Further, inside the knob cover, a spring holding surface for pressing and holding the leaf spring member from the outside toward the spring accommodating portion is provided, and a spring contact portion extending from the spring holding surface to the notch portion of the spring accommodating portion. Is provided, and an inner wall surface on which the inner end surface of the U-shaped portion of the leaf spring member can be locked is provided near the center of the spring accommodating portion, and the spring abuts with the knob cover attached. The portion may push the leaf spring member from the notch portion side to the inner wall surface side, and the inner end surface of the U-shaped portion may be in contact with the inner wall surface. According to this, when the knob cover is attached, the leaf spring member is held by the spring holding surface provided inside, and the spring contact portion extending from the spring holding surface to the notch of the spring accommodating portion is a U-shape of the leaf spring member. The outer end surface of the shaped portion is pushed from the notch portion side to the inner wall surface side so that the inner end surface of the U-shaped portion is brought into contact with the inner wall surface. The leaf spring member is accommodated in a state where there is no play in the spring accommodating portion by abutting the inner end surface between the spring abutting portion and the inner wall surface. As a result, the outer end face and the inner end face of the U-shaped portion of the leaf spring member that has been loosely inserted are held in place so as to be sandwiched, so that the dial knob play (rattling) due to the movement of the leaf spring member. The dial knob has no more, and the operation feeling at the time of the rotation operation is further improved.

Further, it is possible to corners of the plate spring member side of the distal end of the previous SL springs abutting portion is chamfered, a structure in which chamfered portions are provided. According to this, during the mounting of the knob cover, the chamfered portion, the contact portion ne field knob cover can be mounted without being caught to the leaf spring member. Therefore, the mounting workability can be further improved.

According to the dial knob device of the register of the present invention, the installation workability of the dial knob is improved at the time of manufacture, and the occurrence of "rattling" or "fluttering" is suppressed at the time of initial movement of the rotation operation at the time of use, which is good. The dial knob can be rotated with a comfortable operation feeling.

It is a front view of the register of embodiment of this invention. It is a left side view of the register. It is a perspective view seen from the front side of the register. It is a perspective view seen from the back side of the register. It is an exploded perspective view of the register. FIG. 6 is a sectional view taken along line VI-VI of FIG. It is a left side view with an enlarged view which shows the periphery of the 1st knob support part provided on the side part of a retainer. It is a left side view with an enlarged view which shows the periphery of the 1st knob support part provided in the side part of the retainer with the leaf spring member attached. (A) is a left side view of the dial knob, (b) is a perspective view thereof, and (c) is a perspective view seen from the inside thereof. (A) is a left side view of the knob cover, (b) is a perspective view thereof, and (c) is a perspective view seen from the inside thereof. It is explanatory perspective view at the time of assembling a dial knob and a knob cover to a retainer. (A) is an explanatory left side view when mounting the dial knob by shifting it from the first support shaft portion, (b) is a cross-sectional explanatory view at that time, and (c) is a dial knob pivotally supported by the second support shaft portion. The left side view and (d) are the cross-sectional explanatory views at that time. FIG. 5 is a partial cross-sectional view of IX-IX with an enlarged view of FIG. (A) is a side view seen from the inside showing the positional relationship between the dial knob, the link member, and the damper support shaft and the leaf spring member, (b) is a perspective view thereof, and (c) is a schematic plan view thereof. .. (A) is an enlarged rear view of the leaf spring member, (b) is a left side view thereof, and (c) is a perspective view seen from the back side thereof. (A) is a cross-sectional explanatory view with an enlarged view when the dial knob is mounted offset from the first support shaft portion, and (b) is a cross-sectional view with an enlarged view when the dial knob is pivotally supported by the second support shaft portion. Explanatory drawing, (c) is the XVI-XVI sectional view of (b) which shows the state which attaches the knob cover. It is a perspective view which shows the state which attaches the knob cover. (A) is an explanatory left side view of the dial knob, the link member, and the damper support shaft when the damper plate is opened, and (b) is the dial knob, the link when the damper plate is closed. It is explanatory left side view which looked at the member and a damper support shaft from the outside.

Hereinafter, an embodiment of the present invention will be described with reference to the drawings. In the embodiment, a dial knob device of a register for rotating a damper plate will be described as an example, but the dial knob device of the present invention is not limited to this, and a rotating louver, a barrel, or the like is rotated. It may be for operation. In the present specification, the front and rear of each part of the register means the outlet side of the register and the rear side of the suction port.

1 to 18 show a dial knob device for a register according to an embodiment. The register has a duct-like shape with a substantially rectangular cross section, has a ventilation passage 2a inside, and has a retainer 2 as a housing and a retainer. It is provided with a bezel 1 fitted to the front portion of 2. As shown in FIG. 6, a ventilation passage 2a is provided in the retainer 2 so as to communicate with the air outlet 1a of the bezel 1. Inside the air outlet 1a, a cross fin type front movable louver 3 and a rear movable louver 4 are arranged with fins arranged orthogonally to each other.

Further, as shown in FIG. 1, the front portion of the bezel 1 is provided with an opening 1b for a knob for a dial knob together with an air outlet 1a, and the dial portion 14 of the dial knob 10 for operating a damper is an opening for a knob. It is exposed from part 1b.

As shown in FIGS. 4 to 6, at the rear portion of the ventilation passage 2a in the retainer 2, a damper plate 8 for stopping the blowing of air or adjusting the air volume can be rotated on the side wall portions on both sides of the retainer 2. Axial support. The damper plate 8 is formed in a plate shape that can close the ventilation passage 2a, and a sealing material made of a rubber-like sheet such as sponge rubber is attached to the peripheral edge portion. The damper plate 8 opens and closes and rotates in the ventilation passage 2a of the retainer 2. Therefore, as shown in FIG. 5, a shaft support 8a is projected from one end side of the damper plate 8, and the shaft support 8a is the retainer 2. It is rotatably fitted into the shaft hole 2c provided on the side wall of the.

As shown in FIG. 5, a large-diameter hole portion 2b is provided in the wall portion of the retainer 2, and a large-diameter damper support shaft 9 having a lever portion 9a is fitted into the hole portion 2b from the outside to form a damper. The locking portion 9c of the damper support shaft 9 is fitted to the fitting portion 8b provided on the other end side of the plate 8. As a result, the damper plate 8 is rotatably supported by the damper support shaft 9 and the shaft support portion 8a on the side wall portions on both sides of the retainer 2, and is rotatably supported together with the damper support shaft 9. A soft edge such as a sponge sheet is attached to the edge of the damper plate 8, and when the damper plate 8 is closed, the soft edge is brought into contact with the inner peripheral surface of the air passage 2a to improve the airtightness.

As shown in FIGS. 5 and 6, a front movable louver 3 is arranged between the bezel 1 at the front of the retainer 2 and the retainer 2, and a rear movable louver 4 is arranged behind (upstream side) of the front movable louver 3. Will be set up. In the front movable louver 3, three front fins 3a are arranged at intervals in a substantially horizontal direction (horizontal direction), and each front fin 3a is provided via axes on both sides with respect to the bearing portions arranged on the left and right. It is held rotatably.

Further, one link bar (not shown) is connected to the connecting shaft projecting from one end of each front fin 3a, and all the front fins 3a have a structure capable of synchronously changing the direction up and down. .. Further, a slide knob 5 is slidably fitted to the front fin 3a in the center, and a finger is placed on the slide knob 5 to tilt the front movable louver 3 up and down and slide it in the left and right direction. The rear movable louver 4, which will be described later, is tilted to the left and right.

As shown in FIGS. 5 and 6, the rear movable louver 4 has five rear fins 4a arranged in the vertical direction at intervals, and each rear fin 4a has an upper and lower shaft with respect to the bearing portions arranged vertically. It is held rotatably via. Further, one link bar (not shown) is connected to a connecting shaft projecting from one end of each rear fin 4a, and all the rear fins 4a have a structure capable of synchronously changing the direction to the left or right.

The rear movable louver 4 is provided with a linking portion such as an engaging shaft portion and a gear portion (not shown) at the front portion of one rear fin 4a, and an engaging leg portion, a rack portion, etc. provided at the rear portion of the slide knob 5. The structure is such that the direction of the rear fins 4a of the rear movable louver 4 is adjusted to the left and right when the slide knob 5 is slid in the left-right direction by engaging with the linked portion of the above.

As a result, the slide knob 5 adjusts the direction of each front fin 3a of the front movable louver 3 up or down by rotating the slide knob 5 up and down, and the engaging portion is operated by sliding the slide knob 5 in the left-right direction. The left-right direction of the rear fin 4a of the rear movable louver 4 is adjusted to the left or right via.

As shown in FIGS. 2 and 3, a dial knob 10 for opening and closing the damper plate 8 arranged in the ventilation passage 2a is a first knob support portion projecting from the left side surface of the front portion of the retainer 2. It is fitted in 20 and is pivotally supported so that it can be rotated. As shown in FIGS. 9 and 14, the outer peripheral surface of the circumferential wall portion 12a of the boss portion 12 of the dial knob 10 has two predetermined angular positions (when the dial knob 10 is operated to the damper open position and the damper closed position). Recesses 12b are provided at two locations (angled positions). As a result, when the dial knob 10 is rotated to the damper open position or the damper closed position, the recess 12b fits the urging portion 42 of the leaf spring member 40 described later, and the user of the dial knob 10 feels a click. (A feeling of moderation) has come to occur. As shown in FIGS. 7 and 8, a spring accommodating portion 22 of the leaf spring member 40 is provided in the vicinity of the first knob support portion 20 provided on the side wall of the retainer 2, and a leaf spring is provided in the spring accommodating portion 22. The urging portion 42 of the member 40 is housed in a protruding state. When the dial knob 10 and the knob cover 30 are attached, the protruding urging portion 42 abuts on the outer peripheral surface of the circumferential wall portion 12a of the boss portion 12 of the dial knob 10 and urges the dial knob 10 during a rotation operation. To give the user an operating load.

As shown in FIG. 9, the knob main body 11 is formed in a substantially circular frame shape including the dial portion 14, and the lever link portion 15 is projected on the opposite side of the dial portion 14. As shown in FIGS. 14 and 18, a link member 7 is connected to the tip of the lever link portion 15, and the other end of the link member 7 is connected to the lever portion 9a of the damper support shaft 9 of the damper plate 8. As a result, when the dial knob 10 is rotated, the damper plate 8 rotates via the lever link portion 15, the link member 7, the lever portion 9a, and the damper support shaft 9, and opens and closes the ventilation passage 2a. It has become.

As shown in FIG. 11, a short cylindrical first support shaft portion 21 is provided in the center of the first knob support portion 20 of the retainer 2, and when the dial knob 10 is assembled, the bearing portion 13 of the dial knob 10 is provided with a first support shaft portion 21. The first support shaft portion 21 of the 1 knob support portion 20 is fitted, and the dial knob 10 is movably attached to the first support shaft portion 21.

As shown in FIGS. 12 and 16, the diameter of the cylinder of the first support shaft portion 21 is formed to be smaller than the diameter of the circular hole of the bearing portion 13. Therefore, a gap C1 in which the dial knob 10 can be idle is generated between the bearing portion 13 and the first support shaft portion 21. As a result, at the time of assembly, the installation operator can install the dial knob 10 by shifting it from the first support shaft portion 21 as shown in FIG. 16A by the amount of the gap C1. Therefore, the dial knob 10 can be easily attached without the outer peripheral surface of the circumferential wall portion 12a of the boss portion 12 of the dial knob 10 coming into contact with the urging portion 42 of the leaf spring member 40 housed in the spring accommodating portion 22. be able to. A spring accommodating portion 22 of the leaf spring member 40 is provided in the vicinity of the first knob support portion 20 provided on the side wall of the retainer 2, and the urging portion 42 of the leaf spring member 40 projects into the spring accommodating portion 22. In this state, the leaf spring member 40 is accommodated. The protruding urging portion 42 is attached to the outer peripheral surface of the circumferential wall portion 12a of the boss portion 12 of the dial knob 10 as shown in FIG. 16B when the assembly of the dial knob 10 and the knob cover 30 is completed. It is in a state where it is possible to abut and urge the user to apply an operating load to the user.

As shown in FIG. 15, the leaf spring member 40 is formed by bending a spring body of a strip-shaped metal plate, and U-shaped portions 43 and 44 are formed by bending the U-shaped portions 43 and 44 at both end portions thereof. A convex urging portion 42 is formed in a substantially central portion by bending it into a protruding arc shape.

As shown in FIGS. 7 and 16, on both sides of the spring accommodating portion 22 adjacent to the first knob support portion 20, the first accommodating portion 23 accommodating the U-shaped portions 43 and 44 on both sides of the leaf spring member 40 and A second accommodating portion 24 is provided, an outer wall surface 23a is provided on the outside of the first accommodating portion 23, and a notch portion 24c is provided on the outside of the second accommodating portion 24. Further, near the center of the spring accommodating portion 22, inner wall surfaces 23b and 24b to which the inner end faces 43b and 44b (FIG. 15) of the U-shaped portions 43 and 44 of the leaf spring member 40 can be locked are provided.

The knob cover 30 is attached so as to cover and pivotally support the dial knob 10 from the outside. As shown in FIG. 10, the knob cover 30 is provided with a second knob support portion 32 inside, and a cylindrical second support shaft portion 33 for axially supporting the dial knob 10 is provided at the center of the second knob support portion 32. Has been done. In the cylindrical direction (axial direction) of the second support shaft portion 33, a support bearing hole 33a into which the first support shaft portion 21 of the first knob support portion 20 on the retainer 2 side is inserted is provided.

When assembling the register, with the dial knob 10 temporarily fixed to the first knob support portion 20, the knob cover 30 is inserted into the gap between the second support shaft portion 33 of the second knob support portion 32 and the outside of the first support shaft portion 21. The gap C1 in which the dial knob 10 can be idled by being inserted into C1 is closed by the second support shaft portion 33 (FIG. 16). As a result, the bearing portion 13 of the dial knob 10 is rotatably supported by the second support shaft portion 33 without a gap.

The second support shaft portion 33 has a configuration in which a corner portion inside the tip (outside the tip of the support bearing hole 33a) is chamfered and a chamfered portion 33b is provided (FIG. 10). As a result, when the knob cover 30 is attached, the tip of the second support shaft portion 33 is not caught by the chamfered portion 33b on the tip of the first support shaft portion 21 of the first knob support portion 20. Further, the corner portion on the outer outer peripheral side of the circular hole-shaped bearing portion 13 of the dial knob 10 is chamfered to provide the chamfered portion 13a (FIG. 9). As a result, when the knob cover 30 is attached, the tip of the second support shaft portion 33 is guided to the same axis as the bearing portion 13 by the inclination of the chamfered portion 13a, so that the bearing portion 13 of the dial knob 10 becomes the first. 2 It is guided to the same axis as the support shaft portion 33, and is rotatably supported by the shaft.

Further, as shown in FIG. 10 (c), a spring holding surface 34 for holding the leaf spring member 40 from the outside in the direction of the spring accommodating portion 22 is provided in the vicinity of the second knob support portion 32 inside the knob cover 30. A spring contact portion 35 extending from the spring holding surface 34 to the notch portion 24c of the spring accommodating portion 22 is provided. As a result, when the knob cover 30 is attached, the leaf spring member 40 is pressed and held from the outside in the direction of the spring accommodating portion 22 by the spring holding surface 34. The spring contact portion 35 pushes the outer end surface 44a of the U-shaped portion 44 of the leaf spring member 40 from the notch portion 24c side toward the inner wall surface 24b side, and the inner end surface 44b of the U-shaped portion 44 abuts on the inner wall surface 24b. Let me. As a result, as shown in FIG. 16, the leaf spring member 40 is accommodated in the spring accommodating portion 22 without play because the inner end surface 44b is brought into contact with the spring abutting portion 35 and the inner wall surface 24b. To. As a result, the outer end surface 44a and the inner end surface 44b of the U-shaped portion 44 of the leaf spring member 40 that has been loosely inserted are sandwiched in place so as to be sandwiched, so that the dial knob 10 is moved by the movement of the leaf spring member 40. The play (rattling) of the dial knob 10 is eliminated, and the operation feeling of the dial knob 10 during the rotation operation is further improved.

Further, as shown in FIG. 16 (c), the corner portion of the leaf spring member 40 side of the distal end of the field I abutment 35 is chamfered, the chamfered portion 35a is provided. Thus, when the knob cover 30 is attached, spot I abutment 35 for guiding the leaf spring member 40 inwardly by the chamfer 35a, never caught by the plate spring member 40.

Next, the assembly of the register will be described. When the dial knob 10 is attached to the retainer 2, the leaf spring member 40 is first inserted into the spring accommodating portion 22 near the first knob support portion 20 provided on the side wall of the retainer 2 (FIGS. 7 to 8). The U-shaped portions 43 and 44 at both ends of the leaf spring member 40 are inserted into the first accommodating portion 23 provided with the outer wall surface 23a and the second accommodating portion 24 provided with the notch 24c, and the leaf spring member 40 is inserted. Is attached (Fig. 8). Since the leaf spring member 40 is not an accommodating portion in which the spring accommodating portion 22 has a notch portion 24c and is surrounded by a wall surface, the leaf spring member 40 is attached to the spring accommodating portion 22 when the leaf spring member 40 is attached. Since it is not necessary to insert and attach from a substantially vertical direction and it can be inserted from the notch 24c side, the attachment workability can be further improved. Further, the spring accommodating portion 22 is surrounded by a wall surface except for the notch portion 24c of the second accommodating portion 24. Therefore, in the spring accommodating portion 22 of the dial knob device of the present invention, when the leaf spring member 40 is inserted into the spring accommodating portion 22, the leaf spring member 40 does not easily come off from the spring accommodating portion 22.

Next, as shown in FIG. 11, the dial knob 10 is attached by inserting the bearing portion 13 provided in the boss portion 12 into the first knob support portion 20. Since a short columnar first support shaft portion 21 is provided in the center of the first knob support portion 20, the first knob support portion 20 is provided on the circular bearing portion 13 of the boss portion 12 of the dial knob 10. The support shaft portion 21 is inserted. At this time, as shown in FIGS. 12 and 16, since the diameter of the first support shaft portion 21 is formed to be as small as about 1/2 the diameter of the circular hole of the bearing portion 13, the bearing portion 13 and the first support shaft are formed. A gap C1 is formed between the portion 21 and the dial knob 10 so that the dial knob 10 can move freely. As a result, the mounting operator can shift the dial knob 10 from the first support shaft portion 21 and mount the dial knob 10 by the amount of the gap C1 as shown in FIG. 12 (b). Therefore, the dial knob 10 is inserted without the outer peripheral surface of the circumferential wall portion 12a of the boss portion 12 of the dial knob 10 coming into contact with the urging portion 42 of the leaf spring member 40 housed in the spring accommodating portion 22. Can be done.

Next, as shown in FIG. 11, the knob cover 30 is fitted to the side surface of the retainer 2 so as to cover the side surface of the dial knob 10. At this time, as shown in FIG. 16, the dial knob 10 has the first support shaft portion 21 of the first knob support portion 20 fitted into the support bearing hole 33a of the second support shaft portion 33 of the knob cover 30, and the second support. The outer peripheral portion of the shaft portion 33 is fitted into the circular hole-shaped bearing portion 13 of the boss portion 12 of the dial knob 10. Therefore, the gap C1 in which the bearing portion 13 of the dial knob 10 can move is closed by the second support shaft portion 33. As a result, the bearing portion 13 of the dial knob 10 is rotatably supported by the second support shaft portion 33 without a gap.

When the knob cover 30 is attached, as shown in FIG. 13, the corner portion inside the tip of the second support shaft portion 33 (outside the tip of the support bearing hole 33a) is chamfered to provide the chamfered portion 33b. When the second support shaft portion 33 is inserted into the first support shaft portion 21, the tip of the second support shaft portion 33 is brought to the tip of the first support shaft portion 21 of the first knob support portion 20 by the chamfered portion 33b. It can be inserted without getting caught. Further, since the corner portion of the inner peripheral edge of the circular hole-shaped bearing portion 13 of the dial knob 10 is chamfered to provide the chamfered portion 13a, when the second support shaft portion 33 of the knob cover 30 is fitted, the second support shaft portion 33 is fitted. 2 The tip of the support shaft portion 33 is smoothly guided to the same shaft as the bearing portion 13 by the inclination of the chamfered portion 13a. Therefore, the bearing portion 13 of the dial knob 10 is automatically guided to the same axis as the first support shaft portion 21 and the second support shaft portion 33, and is rotatably supported by the shaft. As a result, the dial knob 10 can be easily attached to the first knob support portion 20 on the side surface of the retainer 2 without adjusting the attachment position of the bearing portion 13 of the dial knob 10.

Further, inside the knob cover 30, a spring holding surface 34 for pressing and holding the leaf spring member 40 from the outside in the direction of the spring accommodating portion 22 is provided, and a spring contact extending from the spring holding surface 34 to the notch 24c of the spring accommodating portion 22. A contact portion 35 is provided, whereby the U-shaped portion 44 of the leaf spring member 40 is pressed by the spring contact portion 35 from the notch portion 24c side to the outer wall surface 23a side with the knob cover 30 attached (FIG. 16 (c)). Further, at this time, as shown in FIG. 17, the spring holding surface 34 provided inside the knob cover 30 pushes the leaf spring member 40, and the leaf spring member 40 is held in a fixed position. That is, as shown in FIG. 16, the spring contact portion 35 extending from the spring holding surface 34 to the notch portion 24c of the spring accommodating portion 22 has the outer end surface 44a of the U-shaped portion 44 of the leaf spring member 40 on the notch portion 24c side. Presses from to the inner wall surface 24b side. Therefore, the leaf spring member 40 is accommodated and held in the spring accommodating portion 22 without play by pressing the inner end surface 44b between the spring contact portion 35 and the inner wall surface 24b. Therefore, when the dial knob 10 is rotated, a stable operating load is applied by the leaf spring member 40, and the dial knob 10 can be operated without rattling.

At this time, even when the mounting operation of the knob cover 30, as shown in FIG. 16 (c), the corner portion of the leaf spring member 40 side of the distal end of the field I abutment 35 is chamfered, chamfer 35a since is provided, when inserting the knob cover 30, the chamfered portion 35a, bus I abutment 35 of the knob cover 30 is bayonet smoothly without being caught to the leaf spring member 40 can be attached. As shown in FIG. 17, the knob cover 30 engages the retainer 2 with the locking claw receiver 37 of the knob cover 30 locked to the locking claw 26 of the retainer 2 at a fixed position on the side of the retainer 2. Will be done.

As shown in FIGS. 4 and 5, the damper plate 8 is inserted into the ventilation passage 2a of the retainer 2 so that the shaft support portion 8a provided at the end thereof is fitted into the shaft hole 2c from the inside, and the hole on the side wall of the retainer 2 is inserted. The locking portion 9c of the damper support shaft 9 is inserted from the portion 2b and fitted to the fitting portion 8b of the damper plate 8 from the outside, so that the damper plate 8 is mounted in the ventilation passage 2a. As a result, the damper plate 8 is rotatably supported in the ventilation passage 2a by the shaft support portion 8a and the damper support shaft 9.

Next, the link member 7 is connected between the lever link portion 15 of the dial knob 10 and the lever portion 9a of the damper support shaft 9 of the damper plate 8. As a result, for example, when the dial portion 14 of the dial knob 10 is rotated downward, the damper plate 8 is rotated so as to close the ventilation passage 2a as shown in FIG. 18B, and the dial of the dial knob 10 is dialed. When the portion 14 is rotated upward, the damper plate 8 rotates so as to open the ventilation passage 2a as shown in FIG. 18A. When the damper plate 8 is closed and opened, the recess 12b of the circumferential wall portion 12a of the dial knob 10 engages with the urging portion 42 of the leaf spring member 40 on the first knob support portion 20 side, and the dial knob 10 is engaged. For the user who operates the rotation, an appropriate click feeling (moderation feeling) is generated at the time of closing and at the time of opening. As shown in FIG. 16C, the leaf spring member 40 is held by the spring contact portion 35 at the spring accommodating portion 22 and is accommodated in a state where there is no play. Therefore, the dial knob 10 is operated during the rotation operation. , No rattling occurs, an appropriate operating load is applied, and the damper can be opened and closed with a good operating feeling.

Then, as shown in FIG. 5, the rear movable louver 4 and the front movable louver 3 are incorporated into the retainer 2, and finally, the bezel 1 is fitted to the front surface of the retainer 2, and the bezel 1 is fitted as shown in FIGS. By engaging the locking portion 1c provided on the side surface of No. 1 with the locking claw 33c of the knob cover 30, the assembly of the register including the dial knob 10 is completed.

The register provided with the dial knob 10 having the above configuration is attached to an instrument panel or dashboard in an automobile so that the end of the retainer 2 is connected to a ventilation duct (not shown). The air sent from the ventilation duct is blown out from the ventilation passage 2a in the retainer 2 through the air outlet 1a.

When adjusting the air blowing direction up or down, when the slide knob 5 is operated up or down, the front fin 3a of the front movable louver 3 rotates, and the direction changes up and down, and the air blowing direction. Is adjusted up and down.

When adjusting the air blowing direction to the left or right, when the slide knob 5 is slid to the right or left, the rear fins 4a of the rear movable louver 4 rotate around the upper and lower rotation axes thereof, and the left and right of the rear fins 4a rotate. The direction changes within a predetermined angle range, and the air blowing direction is adjusted to the left and right.

When the ventilation is stopped or throttled, or conversely, the ventilation path 2a is opened, the dial knob 10 on the front left side of the bezel 1 is pushed up or down with a finger or the like to rotate it. At this time, as shown in FIG. 18, the dial knob 10 rotates around the first support shaft portion 21 of the first knob support portion 20, and the rotational power thereof is a damper via the lever link portion 15 and the link member 7. It is transmitted to the plate 8.

When the dial knob 10 is rotated, the outer peripheral surface of the circumferential wall portion 12a of the boss portion 12 comes into contact with the urging portion 42 of the leaf spring member 40 near the first knob support portion 20, and a slight pressing load is applied. Therefore, frictional resistance due to contact is stably generated there, and as a result, an appropriate operating load is stably applied to the rotation operation of the dial knob 10. Further, since the leaf spring member 40 is accommodated and held in the spring accommodating portion 22 by the spring abutting portion 35 in a state where there is no play, the dial knob 10 does not rattle or rattle during the rotation operation, which is good. The dial knob 10 can be operated with a comfortable operation feeling.

In the above embodiment, an example in which the dial knob for opening and closing the damper plate is rotated up and down has been described, but it can also be applied to the movable louver of the register and the dial knob for rotating the barrel. It is also possible to apply the knob in a form in which the knob is provided in the horizontal and horizontal directions and is rotated in the left-right direction.

1 ... Bezel, 1a ... Air outlet, 1b ... Knob opening, 1c ... Locking part, 2 ... Retainer, 2a ... Ventilation path, 2b ... Hole, 2c ... Shaft hole, 3 ... Front movable louver, 3a ... Front fin, 4 ... Rear movable louver, 4a ... Rear fin, 5 ... Slide knob, 7 ... Link member, 8 ... Damper plate, 8a ... Shaft support, 8b ... Fitting part, 9 ... Damper support shaft, 9a ... Lever part , 9c ... locking part, 10 ... dial knob, 11 ... knob body, 12 ... boss part, 12a ... circumferential wall part, 12b ... recess, 13 ... bearing part, 13a ... chamfering part, 14 ... dial part, 15 ... Lever link portion, 20 ... 1st knob support portion, 21 ... 1st support shaft portion, 22 ... spring accommodating portion, 23 ... 1st accommodating portion, 23a ... outer wall surface, 23b ... inner wall surface, 24 ... second accommodating portion, 24b ... Inner wall surface, 24c ... Notch, 26 ... Locking claw, 30 ... Knob cover, 32 ... Second knob support, 33 ... Second support shaft, 33a ... Support bearing hole, 33b ... Chamfered part, 33c ... Locking claw, 34 ... Spring holding surface, 35 ... Spring contact part, 35a ... Chamfered part, 37 ... Locking claw receiver, 40 ... Leaf spring member, 42 ... , 43a, 44a ... outer end face, 43b, 44b ... inner end face, C1 ... gap.

Claims (6)

A first knob support portion provided on the retainer side of the register, a dial knob, and a boss portion attached to the dial knob and rotatably fitted to the first knob support portion are provided.
A leaf spring member provided with an urging portion is housed in the spring accommodating portion provided on the retainer side.
A circumferential wall portion is provided on the boss portion, and a peripheral wall portion is provided.
With the boss portion and the first knob support portion fitted, the outer peripheral surface of the circumferential wall portion abuts on the urging portion of the leaf spring member housed in the spring accommodating portion.
In the register dial knob device
A cylindrical first support shaft portion is provided in the center of the first knob support portion, a circular hole-shaped bearing portion is provided in the center of the boss portion, and the diameter of the cylinder of the first support shaft portion is the bearing portion. Formed smaller than the diameter of the circular hole,
When the bearing portion of the dial knob is fitted into the first support shaft portion of the retainer, a gap is provided between the bearing portion and the first support shaft portion so that the dial knob can move.
A knob cover is provided to cover the dial knob from the outside.
The knob cover is provided with a second knob support portion, a cylindrical second support shaft portion is provided in the center of the second knob support portion, and the first support shaft portion is provided in the cylindrical direction of the second support shaft portion. Is provided with a bearing hole through which
By inserting the second support shaft portion of the knob cover into the gap outside the first support shaft portion, the outer peripheral surface of the circumferential wall portion of the boss portion of the dial knob becomes the leaf spring member. A dial knob device for a register, characterized in that the bearing portion of the dial knob is rotatably supported by the second support shaft portion in contact with the urging portion. The leaf spring member is formed by bending a spring body of a strip-shaped metal plate to provide U-shaped portions at both ends and providing a convex-shaped biasing portion at a central portion.
A first accommodating portion and a second accommodating portion accommodating the U-shaped portions on both sides of the leaf spring member are provided on both sides of the spring accommodating portion, and either the first accommodating portion or the second accommodating portion is provided. The dial knob device for a register according to claim 1, wherein an outer wall surface is provided on the outside of the first accommodating portion, and a notch is provided on the other outside of the first accommodating portion or the second accommodating portion. The dial knob device for a register according to claim 1 or 2, wherein a corner portion inside the tip of the second support shaft portion is chamfered to provide a chamfered portion. The dial knob device for a register according to any one of claims 1 to 3, wherein a corner portion on the outer outer peripheral side of the circular hole-shaped bearing portion is chamfered to provide a chamfered portion. Inside the knob cover, a spring holding surface for pressing and holding the leaf spring member from the outside toward the spring accommodating portion is provided, and a spring contact portion extending from the spring holding surface to the notch portion of the spring accommodating portion is provided. Be,
An inner wall surface on which the inner end surface of the U-shaped portion of the leaf spring member can be locked is provided near the center of the spring accommodating portion.
With the knob cover attached, the spring contact portion pushes the leaf spring member from the notch side to the inner wall surface side, and the inner end surface of the U-shaped portion is in contact with the inner wall surface. 2. The register dial knob device according to claim 2. Is the plate corners of the spring member side chamfer at the tip of it if before Symbol abutment, register the dial knob device according to claim 5, characterized in that the chamfered portion is provided.

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