JP2014034801A - Door handle device for vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a door handle device for a vehicle, capable of securing strength of a handle rotating shaft while securing strength of a base member.SOLUTION: A handle rotating shaft 25 extending downward and inserted into a through-hole 12a formed in a lower wall 12 (wall part) of a base member 10 is integrally formed in an inside handle 20 (handle). The handle rotating shaft 25 comprises: a shaft body 25a including a portion corresponding to a circular part defined by a radius of curvature ρ1 (first radius of curvature) around an axis line L1 (first reference center) in a plane view thereof; and a body reinforcement part 25b including a portion corresponding to a circular part defined by a radius of curvature ρ2 (second radius of curvature), which is larger than the first radius of curvature ρ1, around an axis line L1' (second reference center) separated by a predetermined distance D from the axis line L1.

Description

  The present invention relates to a vehicle door handle device.

  In a vehicle door handle device equipped with a handle for opening a door, a base member is usually fixed to a vehicle door, and the handle is supported by the base member so as to be rotatable around an axis in the vertical direction. Yes. In this case, as described in Patent Document 1 below, for example, the handle rotation shaft may be configured by a component (for example, a metal pin) separate from the handle. However, when a metal pin is used as the handle rotation shaft, a caulking process is often added to prevent the pin from coming off, which may increase work costs. In order to solve this problem, for example, as described in Patent Document 2 below, the handle rotation shaft is formed integrally with the handle, and the handle rotation shaft is configured to be a part of the shape of the handle itself. There is. According to this, unlike the case of using a metal pin, it is not necessary to add a caulking process to prevent it from coming off, so that the operation cost can be reduced.

JP 2011-179233 A JP 2008-038378 A

  When the handle rotation shaft is configured as a part of the shape of the handle itself, as described in Patent Document 2, the handle rotation shaft is configured to extend upward from the handle. It is conceivable to configure it to extend. However, in this configuration, as shown in FIG. 15A, for example, even when the through hole 102a for inserting the handle rotation shaft 101 is formed in the base member 102, the thickness of the corner portion of the base member 102 is at least In order to ensure only a predetermined thickness t, the handle rotation shaft 101 must be set to a small diameter, and the handle rotation shaft 101 is set to a large diameter as shown by a two-dot chain line in the figure. I couldn't. For this reason, there was a problem that the strength of the handle rotation shaft 101 was insufficient. In order to solve this problem, for example, as shown by a two-dot chain line in FIG. 15B, it is conceivable to set the handle rotation shaft 101 to a large diameter while ensuring the thickness of the corner portion of the base member 102. . However, if the axis of the handle rotation shaft 101 changes, the handle may interfere with other members during operation, and the handle rotation shaft 101 cannot be set to a large diameter while changing the axis position of the handle rotation shaft 101. .

  The present invention has been made in order to cope with the above-described problems. The purpose of the present invention is to ensure the strength of the handle rotating shaft while ensuring the strength of the base member even if the handle rotating shaft is inserted into the through hole. It is another object of the present invention to provide a vehicle door handle device that can be secured.

Means for Solving the Problems and Effects of the Invention

In order to achieve the above object, the present invention provides a vehicle including a base member fixed to a vehicle door, and a handle for opening the door, which is supported by the base member so as to be rotatable about an axis in the vertical direction. Door handle device for
The handle is integrally formed with a handle rotation shaft that extends downward and is inserted into a through hole formed in the wall of the base member.
The handle rotation shaft includes a shaft main body including a portion corresponding to a circular portion defined by a first radius of curvature having an axis as a first reference center in plan view, and a portion separated from the axis by a predetermined distance. And a main body reinforcing portion including a portion corresponding to a circular portion defined by a second radius of curvature larger than the first radius of curvature, the center being two reference centers.

  In the vehicle door handle device of the present invention, the handle rotation shaft is defined by a shaft body including a portion corresponding to the circular portion defined by the first curvature radius, and a second curvature radius that is greater than the first curvature radius. A main body reinforcing portion including a portion corresponding to the circular portion.

  Thereby, since the cross-sectional area of the handle | steering-wheel rotating shaft increases at least the cross-sectional integral of a main body reinforcement part, the intensity | strength of a steering wheel rotating shaft can be improved. In this case, by configuring the main body reinforcing portion so as to be located on the opposite side of the corner portion of the base member with respect to the shaft main body, the wall portion of the base member has a size corresponding to the handle rotation shaft having an increased cross-sectional area. Even if the through hole is formed, the thickness of the corner portion of the base member can be kept as it is, so that the strength of the base member can be ensured.

(A) is the external view which looked at the door handle apparatus for vehicles which concerns on Example 1 from diagonally downward. (B) is the external view which looked at (A) from diagonally upward. The front view of the door handle apparatus for vehicles of FIG. (A) is the external view which looked at the base member which comprises the door handle apparatus for vehicles of FIG. 1 from diagonally downward. (B) is a front view of (A). (A) is the external view which looked at the inside handle which comprises the door handle apparatus for vehicles of FIG. 1 from diagonally downward. (B) is a bottom view of (A). (C) is a front view of (A). The V arrow line view of FIG. The principal part enlarged view enclosed with the dashed-two dotted line of FIG. VII-VII sectional drawing of FIG. VIII-VIII principal part sectional drawing of FIG. IX-IX sectional drawing of FIG. (A) is a top view which shows the state which exists in the position before an assembly | attachment in which the knob pin which comprises the door handle apparatus for vehicles of FIG. 1 was inserted in the base member and the lock knob. (B) is a top view which shows the state which the knob pin of (A) moved to the post-assembly position by rotation around an axis. (C) is principal part sectional drawing which shows the engagement state of a knob pin and a base member when it exists in the state of (B). The bottom view which shows the initial position (solid line) and operation position (two-dot chain line) of an inside handle in the vehicle door handle apparatus of FIG. The bottom view which shows the rotation position of the handle | steering-wheel rotating shaft corresponding to each position of FIG. Explanatory drawing which shows the rattling of the handle | steering-wheel rotating shaft in the initial position of FIG. The principal part enlarged view of the steering wheel rotating shaft which comprises the vehicle door handle apparatus which concerns on Example 2. FIG. (A) is explanatory drawing in the case of enlarging a shaft diameter, without changing the axis line position in the conventional steering wheel rotating shaft. (B) is explanatory drawing in the case of enlarging a shaft diameter, changing the axis line position in the conventional steering wheel rotating shaft.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  The vehicle door handle device 1 shown in FIG. 1 and FIG. 2 sets a door latch device (not shown) in an unlocked state provided on a door (not shown) supported so as to be openable and closable to the vehicle body to an open state. The door latch device functions as an operation unit for switching from the unlocked state to the locked state, or switching from the locked state to the unlocked state.

  Specifically, the vehicle door handle device 1 is supported by a base member 10 fixed to an inner panel (not shown) of the door, and is rotatably supported by the base member 10 about an axis L1 (first axis) in the vertical direction. A door lock that is rotatably supported around an axis L2 (second axis) in the vertical direction via an inside handle 20 for opening the door and an axial knob pin 50 having a circular cross section on the base member 10. Or the lock knob 30 for door unlocking operation is provided.

  As shown in FIGS. 2 and 3, the base member 10 has a rectangular plate-like base body 11 whose plate surface is arranged along the vertical direction of the vehicle, and the rear end edge of the base body 11 toward the rear. A lower wall 12, an intermediate wall 13, and an upper wall 14 that extend horizontally and are arranged in parallel to each other, and a connecting wall 18 that extends in the vertical direction of the vehicle and integrally connects the rear end edges of the walls 12-14. I have.

  The lower wall 12 (first wall portion) is formed with a through hole 12a into which the handle rotation shaft 25 (see FIG. 4) can be inserted. The through hole 12a will be described later. A boss 13 a is erected on the middle wall 13 (second wall portion) toward the upper wall 14. The axis of the boss 13a coincides with the axis L1. The inner wall 13 is formed with a circular through hole 13b into which the small diameter portion 53 (see FIG. 9) of the knob pin 50 can be inserted. The axis of the through hole 13b coincides with the axis L2.

  In addition, although the axis lines L1 and L2 are set at positions shifted in the left-right direction of the vehicle (the depth direction of the base member 10) (FIG. 3A), in the longitudinal direction of the vehicle, for example, from the front end of the base member 10 They are set so as to be located at the same distance, and appear to coincide in a front view of the base member 10 (FIG. 3B).

  The upper wall 14 (third wall portion) includes an upper portion 15 and a lower portion 16 that are arranged vertically in parallel with each other, and a connecting portion 17 that integrally connects the rear end edges of the upper portion 15 and the lower portion 16. A circular through hole 16 a that is coaxial with the through hole 13 b of the middle wall 13 is formed in the lower portion 16.

  The upper portion 15 has a triangular cross-sectional slope that continuously increases the amount of bending that causes the distal end rib 51a to bend downward with the base end side (axis L2 side) as a fulcrum as the lever portion 51 advances. A portion 15a is formed, and a groove portion 15b (engagement groove) having a triangular cross section that engages with the rib 51a is formed around the top of the inclined portion 15a. The inclined portion 15a and the groove portion 15b will be described later.

  The connecting wall 18 is formed with a notch 18a for attaching a push-pull cable sleeve (not shown) for transmitting an operation force to the inside handle 20 by the door opening operation, and a door lock or door unlock operation. A notch 18b for attaching a sleeve (not shown) of a push / pull cable that transmits an operating force to the lock knob 30 is formed. Further, the connecting wall 18 is formed with an attachment hole 18c for attaching an elastic member 19 (see FIG. 11) such as rubber, which contacts the inside handle 20 and holds the inside handle 20 in the initial position. .

  As shown in the bottom view of FIG. 4B, the inside handle 20 (handle) is integrally connected to a shaft support portion 21 having a substantially elliptical shape and a front end of the shaft support portion 21, and extends toward the front of the vehicle. And an operation unit 26 for taking out.

  As shown in the front view of FIG. 4C, the operation portion 26 has a rectangular shape extending in the front-rear direction of the vehicle, and as shown in the perspective view of FIG. The side is arranged to face the base member 10. As shown in FIGS. 7 and 8, the shaft support portion 21 includes a lower portion 22 that is integrally connected to the operation portion 26 and arranged to be supported by the lower wall 12 of the base member 10, and an inner portion of the base member 10. A part of the wall 13 is covered, and an upper part 23 arranged so as to be supported by the part of the covered inner wall 13 is integrally provided.

  A circular through hole 23a into which the boss 13a of the middle wall 13 can be inserted is formed in the upper portion 23 (handle support wall), and a through hole into which the small diameter portion 53 (see FIG. 9) of the knob pin 50 can be inserted. 23b is formed. Specifically, the through hole 23b is a long hole in which two oval line segments are circular arcs with the axis L2 of the boss 13a as a rotation center, and even when the upper part 23 rotates around the axis L2, the inner wall 13 is always in communication with the 13 through holes 13b (see FIG. 9).

  Returning to FIG. 4, the lower portion 22 is formed with an action portion 24 that protrudes obliquely rearward from the rear end of the shaft support portion 21. The action portion 24 is formed with an attachment hole 24a for attaching a connecting member (not shown) connected to one end of a push-pull cable that operates when the door is opened, and an elastic member that holds the inside handle 20 in the initial position. 19 is formed, and a locking portion 24c is formed to which one end of the torsion coil spring 40 (see FIG. 9) is locked.

  The torsion coil spring 40 is interposed between the lower portion 22 of the shaft support portion 21 and the middle wall 13 of the base member 10, and has a locking portion 13 c formed on the middle wall 13 at the other end (FIG. 3B). Reference).

  In addition, a handle rotating shaft 25 that extends downward and is inserted into the through hole 12 a of the lower wall 13 of the base member 10 is formed integrally with the lower portion 22. As shown in FIG. 13, the handle rotation shaft 25 includes a shaft main body 25a including a portion corresponding to a circular portion defined by a curvature radius ρ1 around an axis L1 coaxial with the through hole 23a of the upper portion 23, and an axis L1. A body reinforcing portion 25b including a portion corresponding to a circular portion defined by a radius of curvature ρ2 larger than the radius of curvature ρ1 around the axis L1 ′ that is a predetermined distance D from the center is integrally provided.

  Specifically, the shaft main body 25a and the main body reinforcing portion 25b are connected to each other by a connecting portion 25c having concave surfaces 25c1 and 25c2 that are recessed in an arcuate shape and arranged symmetrically with respect to the center line L3 passing through the axis lines L1 and L1 ′. They are connected together and formed in a generally bowl-shaped or polished shape. The main body reinforcing portion 25b is arranged so as to be positioned on the opposite side of the corner portion 12f of the lower wall 12 with respect to the shaft main body 25a (see FIG. 5).

  That is, one end of the arc surface 25a1 of the shaft main body 25a is connected to one end of the arc surface 25b1 of the main body reinforcing portion 25b through the concave surface 25c1 of the connecting portion 25c along the circumferential direction of the handle rotating shaft 25, and further the main body reinforcing portion 25b. The other end of the arc surface 25b1 is connected to the other end of the arc surface 25a1 of the shaft body 25a via the concave surface 25c2 of the connecting portion 25c. The axis L1 corresponds to the first reference center of the present invention, and the curvature radius ρ1 corresponds to the first curvature radius of the present invention. The axis L1 'corresponds to the second reference center of the present invention, and the radius of curvature ρ2 corresponds to the second radius of curvature of the present invention. The concave surface 25c1 corresponds to the first concave surface, and the concave surface 25c2 corresponds to the second concave surface.

  The through hole 12a of the lower wall 12 described above has a main body hole 12b corresponding to the shaft main body 25a of the handle rotating shaft 25, a reinforcing portion hole 12c corresponding to the main body reinforcing portion 25b, and a concave surface 25c1 of the connecting portion 25c. And a convex surface 12e corresponding to the concave surface 25c2 of the connecting portion 25c. The reinforcing portion hole portion 12c is disposed so as to be positioned on the opposite side of the corner portion 12f of the lower wall 12 with respect to the main body hole portion 12b.

  The reinforcing hole 12c is formed with an arcuate guide surface 12c1 that can slide in contact with the arc surface 25b1 of the main body reinforcing portion 25b when the main body reinforcing portion 25b rotates around the axis L1. The guide surface 12c1 ensures a smooth rotating operation when the main body reinforcing portion 25b rotates around the axis L1.

  On the other hand, the main body hole portion 12b has a support surface 12b1 that supports a portion of the shaft main body 25a that is not less than a half circumference around the axis L1, and a convex surface 12d is connected to one end of the support surface 12b1, and the support surface 12b1. A convex surface 12e is connected to the other end. That is, the shaft main body 25a is surrounded by the support surface 12b1, the convex surface 12d (first convex surface), and the convex surface 12e (second convex surface) of the through hole 12a, and the movable range in the main body hole 12b. Is limited. Thereby, the position shift of the axis L1 of the shaft body 25a is suppressed.

  When the handle rotation shaft 25 is in the initial position, the concave surface 25c1 of the connection portion 25c comes into contact with the convex surface 12d of the through hole 12a. When the handle rotation shaft 25 is in the operation position, the concave surface 25c2 of the connection portion 25c is the through hole. It is set to contact the convex surface 12e of 12a. The convex surface 12d of the through hole 12a corresponds to the first convex surface of the present invention, and the convex surface 12e corresponds to the second convex surface of the present invention.

  The lock knob 30 includes a shaft support portion 31 (see FIGS. 7 to 9) and an operation portion 34 (see FIG. 1B) that is integrally connected to the side end of the shaft support portion 31 and covers the side of the shaft support portion 31. ing. The operation unit 34 has a substantially truncated cone or truncated pyramid-shaped side surface, and is arranged so that the side surface is on the vehicle compartment side.

  The shaft support portion 31 (knob support portion) is disposed between the upper portion 23 of the shaft support portion 21 of the inside handle 20 and the lower portion 16 of the upper wall 14 of the base member 10, and is integrally connected to the operation portion 34 to be supported by the shaft support portion 21. The lower part 32 arrange | positioned so that the upper surface of the upper part 23 may be contacted, and the upper part 33 arrange | positioned so that the lower surface of the lower part 16 of the upper wall 14 may be contacted.

  In the lower portion 32 and the upper portion 33, circular through holes 32a and 33a into which the large-diameter portion 52 of the knob pin 50 can be inserted are formed coaxially. In addition, the lower portion 32 is formed with an attachment hole 32b for attaching a connecting member (not shown) connected to one end of a push / pull cable that operates when the door is locked or unlocked (see FIG. 10). .

  As shown in FIGS. 1B and 9, the knob pin 50 is formed in a shaft shape having a circular cross section (made of metal or resin), and a lever portion 51 that extends in the radial direction is formed at the base end thereof. It is integrally formed. 9 and 10, the upper end of the lever portion 51 has a triangular pyramid shape that moves along the inclined surface of the inclined portion 15a in the upper portion 15 of the upper wall 14 and can be engaged with the groove 15b. Ribs 51a (engagement portions) are formed.

  More specifically, the knob pin 50 is formed in a stepped shaft (cylindrical) shape in which the proximal end side is a large diameter portion 52 and the distal end side is a small diameter portion 53. The knob pin 50 has a large-diameter portion 52 inserted into the through-hole 16 a in the lower portion 16 of the upper wall 14, and a small-diameter portion 53 through the through-hole 23 b in the upper portion 23 in the shaft support portion 21 of the inside handle 20. By being inserted into the base member 10, the base member 10 is supported so as to be rotatable around the axis L2. The large-diameter portion 52 has a tool engagement hole 51b for rotating the lever portion 51 around the axis L2.

  In order to accommodate the lever portion 51 between the upper portion 15 and the lower portion 16 of the upper wall 14, the position around the axis L2 from the pre-assembly position shown in FIG. 10 (A) toward the post-assembly position shown in FIG. 10 (B). When the rotation operation is performed, the rib 51 a starts to engage with the inclined portion 15 a of the upper portion 15. As the engagement with the inclined portion 15a progresses, the amount of bending of the lever portion 51 with the base end side as a fulcrum gradually increases, and the reaction force received from the inclined portion 15a also increases. When the lever portion 51 reaches the post-assembly position, the rib 51a gets over the apex of the inclined portion 15a and engages with the groove portion 15b. In this case, the depth, size, and the like of the groove portion 15b are set so that the lever portion 51 is bent by a predetermined amount so that a reaction force of a predetermined size acts on the lever portion 51 in the engaged state with the rib 51a ( Interference setting).

  For this reason, in the state where the lever portion 51 is in the post-assembly position, the reaction between the rib 51a (engagement portion) and the groove portion 15b (engagement groove) is strengthened by the reaction force according to the bending of the lever portion 51. As a result, the knob pin 50 is prevented from rattling in the axial direction, and the rotation around the axis L2 is prevented. In particular, in order to move the lever portion 51 from the post-assembly position to the pre-assembly position, it is necessary to rotate only the knob pin 50 with a torque greater than a predetermined magnitude so that the rib 51a gets over the inclined portion 15a. The knob pin 50 does not rotate during normal operation of the lock knob 30.

  Next, a process of assembling the inside handle 20, the lock knob 30, and the knob pin 50 configured as described above to the base member 10 will be described.

  First, one end of the torsion coil spring 40 is incorporated into the shaft support portion 21 while being engaged with the engagement portion 24c of the action portion 24 of the inside handle 20, and the upper portion 23 of the shaft support portion 21 is the inner wall of the base member 10. The boss 13a of the intermediate wall 13 is inserted into the through-hole 23a of the upper portion 23 so as to cover at least a part of 13 (see FIGS. 7 and 9). At the same time, the handle rotation shaft 25 of the inside handle 20 is inserted into the through hole 12a of the lower wall 12, and the other end of the torsion coil spring 40 is locked to the locking portion 13c of the middle wall 13.

  Thereby, the inside handle 20 is supported by the base member 10 so as to be rotatable about the axis L1. The inside handle 20 is constantly urged counterclockwise in the figure in FIG. 11 under the spring force of the torsion coil spring 40, and is held in the initial position by the contact portion 24 b of the action portion 24 being in contact with the elastic member 19. Has been. In the state where the inside handle 20 is assembled to the base member 10, the through hole 13 b of the middle wall 13 is open upward through the through hole 23 b of the upper portion 23.

  Next, between the shaft support 31 of the lock knob 30 between the upper portion 23 of the shaft support 21 of the inside handle 20 and the lower portion 16 of the upper wall 14 of the base member 10, 16 is assembled so as to coincide with the axis L2 of the 16 through holes 16a (see FIG. 9).

  Next, the knob pin 50 is inserted into each through hole 16a in the order of the lower portion 16 of the upper wall 14 of the base member 10, the shaft support portion 31 of the lock knob 30, the upper portion 23 of the shaft support portion 21 of the inside handle 20, and the inner wall 13 of the base member 10. , 33a, 32a, 23b, and 13b (see FIGS. 9 and 10A).

  The lever portion 51 is rotated around the axis L2 from the position before the knob pin 50 is assembled, and the rib 15a of the lever portion 51 is engaged with the groove portion 15b of the upper wall 14. At the position after the knob pin 50 is assembled, as described above, the lever portion 51 receives the reaction force corresponding to the bending from the groove portion 15b, and the knob pin 50 is urged downward by this reaction force. The shoulder surface of the diameter portion 52 is in a state of pressing the peripheral edge portion of the through hole 23 b in the upper portion 23 of the shaft support portion 21.

  As a result, in addition to preventing the knob pin 50 from rotating around the axis L2 and preventing rattling in the axial direction, rattling of the inside handle 20 in the axis L2 direction is well prevented.

  Next, the operation of the vehicle door handle device 1 configured as described above will be described.

  11 and 12, when the inside handle 20 is in the initial position, the arcuate surface 25a1 of the shaft body 25a and the support surface 12b1 of the body hole 12b are urged by the urging force of the torsion coil spring 40. The arcuate surface 25b1 of the main body reinforcing portion 25b is in contact with the guide surface 12c1 of the reinforcing portion hole 12c, and the concave surface 25c1 of the connecting portion 25c is in contact with the convex surface 12d.

  When the inside handle 20 is rotated from the initial position toward the operation position indicated by the two-dot chain line in FIG. 11, the shaft main body 25a rotates around the axis L1 in the main body hole 12b and the arcuate surface 25b1. Is guided along the guide surface 12c1, and the main body reinforcing portion 25b rotates about the axis L1.

  11 and 12, when the inside handle 20 reaches the operation position, the arc surface 25a1 of the shaft main body 25a of the handle rotation shaft 25 comes into contact with the support surface 12b1 of the main body hole 12b. The arcuate surface 25b1 of the main body reinforcing portion 25b is in contact with the guide surface 12c1 of the reinforcing portion hole portion 12c, and the concave surface 25c2 of the connecting portion 25c is in contact with the convex surface 12e.

  In this case, the handle rotation shaft 25 is formed in a substantially bowl shape or a polished shape including the shaft main body 25a and the main body reinforcing portion 25b, and the through hole 12a is rotated by the handle so that the rotation of the main body reinforcing portion 25b around the axis L1 is allowed. Unlike the case where the handle rotation shaft and the through-hole are formed in a circular shape having substantially the same size, the handle rotation shaft is caused by the dimension setting between the two because it is formed larger than the entire area of the shaft 25. There is a possibility that the axis L1 of the shaft main body 25a is displaced during the rotation operation of 25.

  If this amount of positional deviation becomes too large, the user may feel uncomfortable when operating the inside handle 20, but in the first embodiment, for example, as shown in FIG. 13, the handle rotation shaft 25 is in the initial position. The maximum displacement amount of the axis line L1 of the shaft body 25a in this state (the displacement amount of the axis line L1 of the shaft body 25a around the axis line L1 ′) is set to an extremely small angle θ1.

  In other words, in the state where the handle rotation shaft 25 is in the initial position indicated by the two-dot chain line, the arc main surface 25a of the shaft main body 25a abuts on the convex surface 12e of the through hole 12a as indicated by the solid line, thereby The rotation around the axis L1 ′ beyond the initial position in the direction in which the operation is returned is prevented. Similarly, in a state where the handle rotation shaft 25 is in the operation position, the arc surface 25a1 of the shaft body 25a contacts the convex surface 12d of the through hole 12a, so that the shaft body 25a further exceeds the operation position around the axis L1 ′. It is set so as to prevent rotation in the direction in which the operation proceeds.

  As a result, in the state where the handle rotation shaft 25 is at the initial position or the operation position, the play of the handle rotation shaft 25 with respect to the through hole 12a is well prevented.

  As is clear from the above description, in the first embodiment, the handle rotation shaft 25 includes a shaft main body 25a including a portion corresponding to the circular portion defined by the curvature radius ρ1, and a curvature radius larger than the curvature radius ρ1. A main body reinforcing portion 25b including a portion corresponding to the circular portion defined by ρ2 is integrally provided.

  Thereby, since the cross-sectional area of the handle | steering-wheel rotating shaft 25 increases at least the cross-sectional integral of the main body reinforcement part 25b, the intensity | strength of the steering wheel rotating shaft 25 can be improved. In this case, since the main body reinforcing portion 25b is configured to be located on the opposite side of the corner body 12f of the lower wall 12 with respect to the shaft main body 25a, the lower wall 12 corresponds to the handle rotation shaft 25 having an increased cross-sectional area. Even when the through hole 12a having the above-described size is formed, the thickness of the corner portion 12f of the lower wall 12 can be kept as it is, and thus the strength of the lower wall 12 can be ensured.

  In the first embodiment, the shaft main body 25a and the main body reinforcing portion 25b constituting the handle rotating shaft 25 are configured to be integrally connected by the connection portion 25c having the concave surfaces 25c1 and 25c2 that are recessed in an arc shape. Instead, for example, as shown in the handle rotating shaft 125 of FIG. 14, the shaft main body 25a and the main body reinforcing portion 25b are integrated by a connecting portion 125c having planar side surfaces 125c1 and 125c2 corresponding to their common tangent lines. You may comprise so that it may be connected to.

  The through hole 112a in the lower wall 12 of the base member 10 includes a main body hole 12b corresponding to the shaft main body 25a of the handle rotating shaft 125, a reinforcing portion hole 12c corresponding to the main body reinforcing portion 25b, and a connecting portion 125c. A planar side surface 112d corresponding to the side surface 125c1 and a planar side surface 112e corresponding to the side surface 125c2 of the connecting portion 125c are integrally provided. Other configurations are the same as those in the first embodiment, and members and parts that perform the same functions as those in the first embodiment are denoted by the same reference numerals, and detailed description thereof is omitted.

  Also in the second embodiment, in the state where the handle rotation shaft 125 is in the initial position indicated by the two-dot chain line, the arc surface 25a1 of the shaft body 25a abuts the side surface 112e of the through hole 112a as indicated by the solid line. The main body 25a is prevented from rotating around the axis L1 ′ beyond the initial position in a direction in which the operation is returned. Similarly, in the state where the handle rotation shaft 25 is in the operation position, the arc surface 25a1 of the shaft body 25a contacts the side surface 112d of the through hole 112a, so that the shaft body 25a further exceeds the operation position around the axis L1 ′. It is set so as to prevent rotation in the direction in which the operation proceeds.

  However, the maximum displacement amount of the axis L1 of the shaft body 25a in the state where the handle rotation shaft 125 is in the initial position (the displacement amount of the axis L1 of the shaft body 25a around the axis L1 ′) is based on the angle θ1 of the first embodiment. Is also a large angle θ2. For this reason, in the state where the handle rotation shaft 125 is in the initial position or the operation position, the play amount of the handle rotation shaft 125 with respect to the through hole 112a is larger than that in the first embodiment, but the cross-sectional area of the handle rotation shaft 125 is larger. Since at least the cross-sectional integral of the main body reinforcing portion 25b increases, the strength of the handle rotating shaft 125 can be improved.

  In the first and second embodiments, the center-to-center distance is set so that the shaft main body 25a and the main body reinforcing portion 25b of the handle rotation shafts 25 and 125 include a perfect circular shape that does not intersect. For example, the center-to-center distance may be set so that the true circles intersect each other.

DESCRIPTION OF SYMBOLS 1 Vehicle door handle apparatus 10 Base member 12 Lower wall 12a, 112a Through-hole 12b Body hole 12c Reinforcement hole 12d, 112d Convex surface (first convex surface)
12e, 112e Convex surface (second convex surface)
13 Middle wall 13a Boss 13b Through hole 14 Upper wall 15 Upper part 15a Inclined part 15b Groove part 16 Lower part 16a Through hole L1, L2 Axis 20 Inside handle (handle)
21 Shaft support portion 22 Lower portion 23 Upper portion 23a Through hole 25, 125 Handle rotation shaft 25a Shaft body 25b Body reinforcement portion 25c, 125c Connection portion 25c1, 125c1 Concave surface (first concave surface)
25c2, 125c2 Concave surface (second concave surface)
26 Operation part 30 Lock knob 31 Shaft support part 32 Lower part 32a Through hole 33 Upper part 33a Through hole 34 Operation part 40 Torsion coil spring 50 Knob pin 51 Lever part 51a Rib 52 Large diameter part 53 Small diameter part

Claims (5)

A vehicle door handle device comprising: a base member fixed to a vehicle door; and a handle for opening the door, which is supported by the base member so as to be rotatable around an axis in the vertical direction.
The handle is integrally formed with a handle rotation shaft that extends downward and can be inserted into a through-hole formed in the wall of the base member.
The handle rotation shaft is spaced apart from the shaft main body by a predetermined distance from a shaft main body including a portion corresponding to a circular portion defined by a first radius of curvature having the axis as a first reference center in plan view. A vehicle door handle device comprising: a body reinforcing portion including a portion corresponding to a circular portion defined by a second curvature radius larger than the first curvature radius, the portion being a second reference center.   The shaft main body and the main body reinforcing portion are arranged in a circular arc shape symmetrically arranged with respect to a center line passing through the first reference center and the second reference center in a plan view of the handle rotation shaft. The connection portion having the first concave surface and the second concave surface is integrally connected, and one end of the arc surface of the shaft main body extends along the circumferential direction of the handle rotation shaft via the first concave surface of the connection portion. The second end of the circular arc surface of the shaft main body is connected to the other end of the circular arc surface of the shaft body via the second concave surface of the connecting portion. The vehicle door handle device according to claim.   The through hole of the wall portion includes a main body hole corresponding to the shaft main body and a reinforcing portion hole corresponding to the main body reinforcing portion. The reinforcing portion hole includes the main body reinforcing portion. The vehicle door handle device according to claim 1, wherein an arcuate guide surface that is slidable in contact with the arc surface of the main body reinforcing portion when rotating around the axis is formed.   The through hole of the wall portion includes a main body hole corresponding to the shaft main body, a reinforcing portion hole corresponding to the main body reinforcing portion, a first convex surface corresponding to a first concave surface of the connection portion, and A second convex surface corresponding to the second concave surface of the connecting portion, and the hole for the main body has a support surface that supports a portion of the shaft main body that is not less than a half circumference around the axis so as to be slidable. The first convex surface is connected to one end of the surface, the second convex surface is connected to the other end of the support surface, and the first concave surface of the connecting portion penetrates the penetration portion when the handle rotation shaft is in the initial position. The second concave surface of the connecting portion is set so as to abut on the second convex surface of the through hole in a state in which the first rotational surface of the hole is in contact with the handle rotation shaft in the operating position. Vehicle door handle device.   In a state where the handle rotation shaft is at the initial position, the arc surface of the shaft main body abuts on the second convex surface of the through hole, so that the shaft main body further exceeds the initial position around the second reference center. Rotation in the direction in which the operation is returned is prevented, and when the handle rotation shaft is in the operation position, the arc surface of the shaft main body abuts on the first convex surface of the through hole, so that the shaft main body is 5. The vehicle door handle device according to claim 4, wherein the vehicle door handle device is prevented from rotating around the second reference center in a direction in which the operation is further advanced beyond the operation position.

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