Mounting structure for vehicle door handle and vehicle door handle device
The vehicle door handle mechanism addresses the issue of size and operational resistance by using an operation force transmission body with a sliding guide and damper, resulting in a compact and user-friendly design with reduced operational force.
Patent Information
- Application Number
- JP2024074282
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2024-05-01
- Publication Date
- 2025-11-14
AI Technical Summary
Existing vehicle door handle mechanisms with gear dampers require a large rack structure and exert constant resistance, leading to increased size and operational difficulty.
A vehicle door handle mechanism using an operation force transmission body with a sliding guide portion and a damper that reduces resistance as the handle approaches the terminal position, eliminating the need for a rack and allowing for a compact, simplified design with reduced operational force.
The mechanism achieves a compact and user-friendly operation by minimizing damper resistance as the handle approaches the terminal position, enhancing operability and reducing the risk of erroneous opening.
Smart Images

Figure 2025169531000001_ABST
Abstract
Description
[Technical Field]
[0001] The present invention relates to a vehicle door handle mounting structure and a vehicle door handle device. [Background technology]
[0002] A vehicle door handle device includes a base member fixed to a vehicle door outer panel, and a door handle member attached to the base member so as to be rotatable between an initial position and a terminal position rotated from the initial position toward the inside or outside of the vehicle. In recent vehicle door handle devices, the door handle member is positioned so as to be flat against the outer surface of the door outer panel.
[0003] In such door handle devices, a spring or the like is used to bias the door handle member to hold it in its initial position, while a gear damper is provided to prevent sudden movements in both the opening rotation caused by the user from the initial position toward the terminal position, and the closing rotation from the terminal position toward the initial position when the opening operation is released (see Patent Document 1). This gear damper damps the rotation speed of the door handle member both when opening and closing. The gear of the gear damper is provided on the rotating door handle member, and a rack that meshes with this gear is provided on the base member. [Prior art documents] [Patent documents]
[0004] [Patent Document 1] Japanese Patent Application Laid-Open No. 2001-98799 Summary of the Invention [Problem to be solved by the invention]
[0005] However, the rack formed on the base member is formed in an arc-like shape that extends along the rotation direction of the gear of the gear damper. In other words, the rack is formed on the base member over the rotation range of the gear damper, which inevitably increases its size. Furthermore, by its very nature, the gear damper theoretically returns a constant force when a certain operating force is applied, which creates resistance (heavy operation) when the user operates it from the initial position to the terminal position, resulting in a deterioration in operability.
[0006] The object of the present invention is to realize a compact and simple damper mechanism and improved operability in a vehicle door handle mounting structure and a vehicle door handle device in which the door handle member is opened and closed by rotating between a terminal position and an initial position.
[0007] In order to solve the above problems, the vehicle door handle device of the present invention comprises: a base member attached to a door panel of a vehicle door; a door handle member attached to the base member so as to be capable of rotating about a predetermined rotation axis from a predetermined initial position to a predetermined terminal position for opening and from the terminal position to the initial position for closing; a biasing means for biasing and holding the door handle member at the initial position; an operation force transmission body, which is a rotating body rotatable about a rotation axis extending in the same direction as the rotation axis relative to the base member, and which has a sliding guide part that holds a sliding pressing part that is provided on the door handle member, and when the opening rotation of the door handle member occurs due to a user's operation, the operation force transmission body is pushed by the sliding pressing part (held by the sliding guide part) toward a first rotation direction about the rotation axis and rotates, and when the user's operation is released and the door handle member occurs a closing rotation in accordance with the biasing force of the biasing means, the operation force transmission body is pushed by the sliding pressing part (held by the sliding guide part) toward a second rotation direction opposite to the first rotation direction about the rotation axis and rotates; a damper attached to a rotation shaft portion of the operation force transmission body in a manner fixed to the base member, the damper operating to attenuate the rotation forces of the operation force transmission body in two directions, the first rotation direction and the second rotation direction, to a greater extent as the rotation speed of the operation force transmission body increases; Equipped with the sliding guide portion extends from the inner side (rotation center side) to the outer side (outer periphery side) in the radial direction with respect to the rotation axis in the operation force transmission body, and guides the sliding of the sliding pressing portion in the extending section, The sliding pressing portion is configured to be positioned radially outward in the extension section of the sliding guide portion and press the operating force transmission body as the opening rotation progresses, so that when the opening rotation of the door handle member is performed at a constant rotational speed by the user operation, the force (damper load) of the damper pushing back the door handle member due to its operating force decreases as the opening rotation progresses.
[0008] In order to solve the above problems, the vehicle door handle mounting structure of the present invention comprises: a door handle member attached to the vehicle door so as to be capable of rotating about a predetermined rotation axis from a predetermined initial position toward a predetermined terminal position for opening and from the terminal position toward the initial position for closing; a biasing means for biasing and holding the door handle member at the initial position; an operation force transmission body, which is a rotating body rotatable about a rotation axis extending in the same direction as the rotation axis relative to the vehicle door, and which has a sliding guide part that holds a sliding pressing part provided on the door handle member, and when the door handle member is rotated to open by a user's operation, the operation force transmission body is pressed by the sliding pressing part toward a first rotation direction about the rotation axis and rotates, and when the user's operation is released and the door handle member is rotated to close in accordance with the biasing force of the biasing means, the operation force transmission body is pressed by the sliding pressing part toward a second rotation direction opposite to the first rotation direction about the rotation axis and rotates; a damper attached to a rotation shaft portion of the operation force transmitting body in a manner fixed to the vehicle door, the damper operating to attenuate the rotation forces of the operation force transmitting body in two directions, the first rotation direction and the second rotation direction, to a greater extent as the rotation speed of the operation force transmitting body increases; Equipped with the sliding guide portion extends from the inner side (rotation center side) to the outer side (outer periphery side) in the radial direction with respect to the rotation axis in the operation force transmission body, and guides the sliding of the sliding pressing portion in the extending section, The sliding pressing portion is configured to be positioned (moved) further outward in the radial direction in the extension section of the sliding guide portion as the opening rotation progresses (as it moves toward the terminal position), and to press the operation force transmitting body. As a result, when the opening rotation of the door handle member is performed at a constant rotation speed by the user's operation, the force (damper load) of the damper that pushes back the door handle member due to its operating force is reduced as the opening rotation progresses, The vehicle door has a door panel with an opening formed therein, the door handle member is disposed relative to the door panel such that the rotation axis is provided along an edge of the opening at the rear side of the opening, and has a door handle main body that closes the opening such that a surface facing the front side of the opening is flush with a design surface of the door panel in the initial position, The door handle body is characterized in that when in the initial position, the user pushes its surface toward the back of the opening, causing it to rotate around the rotation axis and rotate so that its surface faces the back of the opening, thereby reaching the terminal position, at which point the door can be opened by pulling the surface from the back of the opening to the front.
[0009] These configurations eliminate the need for a rack, which is necessary when using a gear damper, and instead use an operation force transmission body. The operation force transmission body may have a shape with a sliding guide portion extending in the radial direction, and can have a small and simplified structure, such as a lever-like structure that is long in the radial direction. Furthermore, when a gear damper is used, the rack needs to have internal teeth (or external teeth) that mesh with the gear of the gear damper. Considering durability against gear meshing, a high-rigidity resin must be used for the rack. However, with the above configuration, since there is no gear meshing structure, ordinary resins can be used, and there are more material options available.
[0010] Furthermore, with these configurations, the closer the door handle member is to the terminal position from the initial position, the further outward the contact point between the door handle member and the operation-force transmitting body is from the rotation center of the operation-force transmitting body, allowing the door handle member to be rotated open with less operating force, and the force pushing back the door handle member by the damper (damper load) is also reduced. As a result, when the door handle member is rotated open by user operation, the operating force required in the latter half of the opening rotation is reduced, improving operability. On the other hand, there is also the advantage that the door handle member is less likely to be rotated open if an erroneous operation occurs that rotates the door handle member open when it is in the initial position.
[0011] The door handle member and the operation force transmission body are attached to the vehicle door so that the pivot axis and the rotation axis are parallel to but not coincident with each other, The sliding guide portion has opposing guide wall portions that face each other on the first rotation direction side and the second rotation direction side in the extension section, The sliding pressing portion protrudes parallel to the rotation axis from a position on the door handle member that is spaced perpendicular to the rotation axis, and is housed and held between the opposing opposing guide wall portions.When the door handle member rotates to open, the sliding pressing portion presses the opposing guide wall portion on the first rotation direction side, and when the door handle member rotates to close, the sliding pressing portion presses the opposing guide wall portion on the second rotation direction side, thereby rotating the operating force transmission body.
[0012] According to the above configuration, by setting the axes of the door handle member and the operation force transmission body to be parallel but not coincident, the degree of freedom in the size and arrangement of the operation force transmission body is increased, allowing for further miniaturization and simplification. Furthermore, the sliding guide portions can be simply provided as opposing guide wall portions that face each other. Furthermore, the sliding pressure portion can be held simply by being sandwiched between the opposing guide wall portions, eliminating the need for a structure to prevent the sliding pressure portion from falling off.
[0013] The vehicle door has a door panel having an opening formed therein, the door handle member is disposed relative to the door panel such that the rotation axis is provided along an edge of the opening at the rear side of the opening, and has a door handle main body that closes the opening such that a surface facing the front side of the opening is flush with a design surface of the door panel in the initial position, When the door handle body is in the initial position, the user pushes its surface toward the back of the opening, causing it to rotate around the rotation axis and rotate so that its surface faces the back of the opening, reaching the terminal position, at which point the door can be opened by pulling the surface from the back of the opening to the front.
[0014] The above-mentioned configuration provides a door handle member that is positioned flat against the door panel. The user then rotates the door handle member by pushing it inward and twisting it around so that its surface faces the rear. The twisted door handle member then becomes a handle that can be pulled forward, allowing the door to be opened by pulling it open. When pushing the door handle member inward, the longer the pushing stroke, the smaller the operating force, making it easier to operate. [Brief explanation of the drawings]
[0015] [Figure 1] 1 is a side view of a vehicle on which a vehicle door handle mounting structure is formed; [Figure 2] FIG. 1 is a front perspective view of a vehicle door handle device. [Figure 3] FIG. 2 is an exploded perspective view of the vehicle door handle device. [Figure 4] 2 is a rear perspective view of the vehicle door handle device when the door handle member is in an initial position; FIG. [Figure 5] 2 is a rear perspective view of the vehicle door handle device when the door handle member is in a terminal position; FIG. [Figure 6] FIG. 2 is an enlarged perspective view of the door handle member attached to the vehicle door when the door handle member is in an initial position. [Figure 7] FIG. 2 is an enlarged perspective view of the door handle member attached to the vehicle door when the door handle member is in an end position. [Figure 8] 2 is a cross-sectional view of the vehicle door handle device when the door handle member is in an initial position. FIG. [Figure 9] 2 is a cross-sectional view of the vehicle door handle device when the door handle member is in an intermediate operation position; FIG. [Figure 10] 2 is a cross-sectional view of the vehicle door handle device when the door handle member is in a terminal position. FIG. [Figure 11] 11 is a graph showing the change in the operating force on the door handle member from the initial position to the terminal position in the embodiment shown in FIGS. [Figure 12] 6 is a graph showing the change in operating force on a door handle member from an initial position to a terminal position in a conventional example using a gear damper. DETAILED DESCRIPTION OF THE INVENTION
[0016] Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
[0017] 2 to 5, this embodiment is a vehicle door handle device 10 having a door handle member 1, a base member 2, a biasing means 4, an operation force transmitting body 3, and a damper 5. This door handle device 10 is attached to a door panel 101 of a door 100 of a vehicle 200 as shown in FIG. 1 to form a vehicle door handle mounting structure 1000 (see FIGS. 6 and 7).
[0018] The door 100 includes a door panel 101 and a base member 2. The base member 2 is attached to a back surface 101b (see FIGS. 8 to 10) of the door panel 101 of the door 100 (vehicle door) of a vehicle 200 as shown in FIG. 1. The door panel 101 is a door outer panel, a door inner panel, or the like, and has an opening 102 (see FIGS. 2 and 3).
[0019] 2 to 5, a door handle member 1 is attached to the base member 2. The door handle member 1 is rotatable about a predetermined rotation axis x1 (handle axis) relative to the base member 2, and is capable of rotating about the rotation axis x1 to open from a predetermined initial position (see FIGS. 4, 6, and 8) to a predetermined terminal position (see FIGS. 5, 7, and 10), and of rotating from the terminal position to the initial position to close.
[0020] On the other hand, as shown in FIGS. 4 and 5, a bell crank 6 is attached to the base member 2 as a swinging body that is interlocked with the door handle member 1. The bell crank 6 is mechanically connected to a well-known door-closed state retention mechanism 7 that holds the door 100 in a closed state. When the door handle member 1 reaches an end position (FIG. 4) by rotating to the open position, the door-closed state retention mechanism 7 switches to an unlocked state that allows the door 100 to be opened. The unlocked state allows the user to open the door 100. On the other hand, when the door handle member 1 starts to rotate to the close position from the end position (FIG. 4 → FIG. 5), the bell crank 6 switches the door-closed state retention mechanism 7 to a locked state that does not allow the door 100 to be opened. The locked state prevents the user from opening the door 100.
[0021] The door handle member 1 of this embodiment includes a door handle body 15, a rotation shaft 11, a protruding portion 12, and a sliding pressing portion 13, as shown in FIGS.
[0022] As shown in Figures 6 and 7, the door handle main body 15 is positioned relative to the door panel 101 so that a rotation axis x1 is set along the edge (here, the upper edge) of the opening 102 at the rear side of the opening 102, and in the initial position (see Figures 6 and 8), the surface 10a facing the front side of the opening 102 (the arrow P2 side: here, the outside of the vehicle) is flush with the design surface 101a of the door panel 101 to close the opening 102. When the door handle body 15 is in the initial position (see Figures 6 and 8), the user pushes its surface 15a toward the back side of the opening 102 (towards the arrow P1: in this case, the inside of the vehicle), causing it to rotate around the rotation axis x1 (Figures 8 → Figures 9 → Figures 10), and the surface 10a rotates so that it faces the back side of the opening 102, reaching a terminal position (see Figures 7 and 10).At this terminal position, the door closed state holding mechanism 7 is unlocked by pulling the surface 10a from the back side (towards the arrow P1) of the opening 102 to the front side (towards the arrow P2), allowing the door opening operation to transition the door 100 to the open state.
[0023] As shown in FIGS. 3 to 5, the door handle main body 15 of this embodiment is a plate-shaped member whose longitudinal direction X (see FIG. 2) is the axial direction of the rotation shaft 11 (rotation axis x1). The rotation shaft 11 is inserted and held in rotation shaft support portions 21, 21 (see FIGS. 3 to 5) provided on the base member 2. The rotation shaft support portions 21, 21 are located on the upper edge side of the opening 102 of the door panel 101. The door handle main body 15 holds the rotation shaft 11 inserted in rotation support portions 14, 14 (see FIGS. 3 to 5) provided at one end of the door handle main body 15 in the short-side direction Y (see FIG. 2). As a result, the door handle main body 15 is attached to the base member 2 so as to be rotatable about the rotation shaft 11 (rotation axis x1). One of the rotary shaft support portions 21 and one of the rotary support portions 14 are not shown in FIGS. 4 and 5, but are located in a position hidden by the bell crank 6.
[0024] As shown in Fig. 4, the protrusion 12 is formed to protrude rearward from the back surface 15b of the door handle main body 15 at one end side in the longitudinal direction X (see Fig. 2) of the door handle main body 15. Specifically, the protrusion 12 is formed to protrude rearward in the plate thickness direction Z (see Fig. 2) of the door handle main body 15 from a position on the back surface 15b of the door handle main body 15 away from the rotation axis x1 in the short direction Y (see Fig. 2). Note that the directions X, Y, and Z are perpendicular to one another.
[0025] 3, the sliding pressing portion 13 protrudes parallel to the rotation axis x1 from a position perpendicular to the rotation axis x1 on the door handle member 1. In this embodiment, the sliding pressing portion 13 protrudes parallel to the rotation axis x1 from the protruding tip side of the protruding portion 12. The axis of the sliding pressing portion 13 is denoted by the symbol x13 and is parallel to the axes x1 and x3.
[0026] The biasing means 4 biases and holds the door handle member 1 in its initial position. As shown in Figures 3 and 4, the biasing means 4 in this embodiment is a torsion coil spring provided so as to surround the rotation shaft 11 of the door handle member 1, and biases and holds the door handle member 1 in its initial position by pressing it against the base member 2 or the door panel 101, in reaction to a force applied in the coil rotation direction, i.e., against the opening rotation of the door handle member.
[0027] As shown in FIGS. 3 to 5 , the operation force transmission body 3 is a rotating body that is provided relative to the door 100 of the vehicle 200 and is rotatable about a rotation axis x3 that extends in the same direction as the rotation axis x1. The operation force transmission body 3 has a sliding guide portion 31 that holds a sliding pressing portion 13 provided on the door handle member 1. When a user's operation causes the door handle member 1 to rotate to open ( FIGS. 8 → 9 → 10 ), the operation force transmission body 3 is pushed in a first rotation direction R1 around the rotation axis x3 by the sliding pressing portion 13 held in a guided state by the sliding guide portion 31, and rotates in the first rotation direction R1. On the other hand, when the user's operation is released and the door handle member 1 rotates to close ( FIGS. 10 → 9 → 8 ) in accordance with the biasing force of the biasing means 4, the operation force transmission body 3 is pushed in a second rotation direction R2 opposite to the first rotation direction R1 around the rotation axis x3 by the sliding pressing portion 13 held in a guided state by the sliding guide portion 31, and rotates in the second rotation direction R2.
[0028] The operation force transmitting body 3 and the door handle member 1 of this embodiment are attached to the vehicle door 100 (here, to the base member 2) so that the rotation axis x3 and the pivot axis x1 are parallel to but not coincident with each other.
[0029] The operation force transmitting body 3 of this embodiment is provided so as to have a wider rotation angle range than the door handle member 1 which rotates back and forth between an initial position (see FIG. 8) and an end position (see FIG. 10).
[0030] The damper 5 is a rotary damper attached to the rotating shaft portion 30 of the operating force transmission body 3 in a manner fixed to the base member 2, and operates to damp the rotational forces of the operating force transmission body 3 in two directions, the first rotational direction R1 and the second rotational direction R2, to a greater extent as the rotational speed increases.
[0031] The sliding guide portion 31 extends from the inside to the outside in the radial direction y3 relative to the rotation axis x3 in the operation force transmission body 3, and guides the sliding of the sliding pressing portion 13 in that extending section.
[0032] As the opening rotation progresses, the sliding pressing portion 13 moves further outward in the radial direction y3 within the extension section of the sliding guide portion 31, and is configured to press the operation force transmission body 3 in the first rotation direction R1 at the destination (position) to which it has moved (FIGS. 8, 9, and 10). That is, as the opening rotation progresses, the sliding pressing portion 13 presses the operation force transmission body 3 at a position farther away from the rotation center (x3). As a result, when the door handle member 1 is rotated open by a user operation at a constant rotation speed, the force (damper load) of the damper 5 to push back the door handle member 1 due to its operating force (output torque) decreases as the opening rotation progresses. The user's operation to rotate the door handle member 1 open becomes easier because the operating force becomes lighter in the latter half of the operation.
[0033] FIG. 11 is a graph showing the operating force of the user when operating the door handle member 1 from the initial position to the final position at a constant rotational speed in this embodiment. FIG. 12 is a graph showing the operating force when operating the door handle member 1 from the initial position to the final position at a constant rotational speed using a conventional damper mechanism with a gear damper. Lines A1 and A2 represent the total operating force pushing the door handle member 1, including the force resisting the damper's operating force (damper load). Lines B1 and B2 represent the force resisting the biasing force of the biasing means 4 out of the total operating force pushing the door handle member 1. In this embodiment, line B1 in FIG. 11 indicates that the force of the biasing means 4 increases as the user approaches the final position, and line A1 in FIG. 11 indicates that the force F1 resisting the damper's operating force decreases as the user approaches the final position. On the other hand, when a gear damper is used as in the conventional example, the line B2 in FIG. 12 is the same as the line B1 in FIG. 11, but the line A2 in FIG. 12 is parallel to the line B2, and the force F2 resisting the operating force of the damper 5 is constant regardless of the position of the door handle member 1. In this embodiment, the operating burden on the door handle member 1 from the initial position to the terminal position is lower. Also, the total operating force for pushing the door handle member 1 at the initial position is set to be the same (a0) in both the conventional example and this embodiment. In this case, the maximum values a1 and a2 of the total operating force are lower in this embodiment (a1) than in the conventional example (a2).
[0034] 8 to 10, the sliding guide portion 31 of this embodiment has opposing guide walls 31A, 31B that face each other on the first rotation direction R1 side and the second rotation direction R2 side in the extension section of the operation force transmission body 3. The sliding pressing portion 13 is held in a manner to be accommodated between the opposing opposing guide walls 31A, 31B, and when the door handle member 1 is rotated to open, the sliding pressing portion 13 presses one opposing guide wall 31A on the first rotation direction R1 side, thereby rotating the operation force transmission body 3 in the first rotation direction R1, while when the door handle member 1 is rotated to close, the sliding pressing portion 13 presses the other opposing guide wall 31B on the second rotation direction R2 side, thereby rotating the operation force transmission body 3 in the second rotation direction R2.
[0035] 3, the operation force transmission body 3 of this embodiment has a rotation shaft portion 30 as a rotation center of the sliding guide portion 31. The base member 2 has a rotation support portion 24 that rotatably holds the rotation shaft portion 30. The rotation support portion 24 holds the rotation shaft portion 30 in a fitted state, and a cover member 25 is attached to the rotation support portion 24, thereby rotatably holding the rotation shaft portion 30 about the rotation axis x3. The rotation shaft portion 30 is formed to protrude toward the rotation axis x3, and the rotation support portion 24 forms an opening 24h that exposes the protruding tip end surface of the rotation shaft portion 30 when the operation force transmission body 3 is held in the rotation support portion 24.
[0036] 2 and 3, the damper 5 of this embodiment has a rotation input portion 50 that engages with the protruding tip surface of the rotation shaft portion 30 exposed from the opening 24h so as to be rotatable together with the rotation input portion 50, a main body portion 52 that is connected to the rotation input portion 50 to damp the rotational force of the rotation shaft portion 30, and fixing portions 51, 51 that are fixed non-rotatably to the base member 2 so that the main body portion 52 does not rotate together with the rotation input portion 50. The damper 5 can be a well-known rotary damper.
[0037] Although one embodiment of the present invention has been described above, this is merely an example, and the present invention is not limited to this. For example, various modifications based on the knowledge of those skilled in the art are possible, such as omitting some of the components in the above embodiment or adding other components.
[0038] The above embodiment is a door handle device attached to the outer door panel, and has an attachment structure in which a damper is attached to a door handle member that rotates inward via an operating force transmission body. However, the present invention can be implemented with door handle devices of other types as long as they have a rotating door handle member. For example, a door handle member that rotates outward from an initial position to a terminal position may be used. A door handle member that is operated from inside the vehicle may be used instead of a door handle member that is operated from outside the vehicle. The base member may be composed of multiple divided bodies. [Explanation of symbols]
[0039] 1000 Vehicle door handle mounting structure 200 vehicles 100 doors (vehicle doors) 101 Door Panel 101a Design surface 102 Aperture 102a Edge of opening 1 Door handle component 10 Door handle body 10a surface 13 Sliding pressing part 2 Base material 3. Operating force transmission body 30 Rotating shaft 31 Sliding guide part 31A, 31B Opposing guide wall 4. Actuation means 5 Damper R1 First rotation direction R2 Second rotation direction x1 Rotation axis x3 rotation axis
Claims
1. a base member attached to a door panel of a vehicle door; a door handle member attached to the base member so as to be capable of rotating about a predetermined rotation axis from a predetermined initial position to a predetermined terminal position for opening and from the terminal position to the initial position for closing; a biasing means for biasing and holding the door handle member at the initial position; an operation force transmission body, which is a rotating body rotatable about a rotation axis extending in the same direction as the rotation axis relative to the base member, and which has a sliding guide part that holds a sliding pressing part provided on the door handle member, and when the door handle member is rotated to open by a user's operation, the operation force transmission body is pressed by the sliding pressing part toward a first rotation direction about the rotation axis and rotates, and when the user's operation is released and the door handle member is rotated to close in accordance with the biasing force of the biasing means, the operation force transmission body is pressed by the sliding pressing part toward a second rotation direction opposite to the first rotation direction about the rotation axis and rotates; a damper attached to a rotation shaft portion of the operation force transmission body in a manner fixed to the base member, the damper operating to attenuate the rotation forces of the operation force transmission body in two directions, the first rotation direction and the second rotation direction, to a greater extent as the rotation speed of the operation force transmission body increases; Equipped with the sliding guide portion extends from the inner side to the outer side in a radial direction relative to the rotation axis of the operation force transmission body and guides sliding of the sliding pressing portion in the extending section, The sliding pressure portion is configured to be positioned radially outward in the extension section of the sliding guide portion as the opening rotation progresses, and to press the operating force transmission body, so that when the opening rotation of the door handle member is performed at a constant rotation speed by the user operation, the force with which the damper pushes back the door handle member due to its operating force decreases as the opening rotation progresses.
2. The door handle member and the operation force transmission body are attached to the vehicle door so that the pivot axis and the rotation axis are parallel to but not coincident with each other, The sliding guide portion has opposing guide wall portions that face each other on the first rotation direction side and the second rotation direction side in the extension section, 2. The vehicle door handle device according to claim 1, wherein the sliding pressure portion protrudes parallel to the rotation axis from a position on the door handle member that is spaced perpendicular to the rotation axis, and is housed and held between the opposing opposing guide wall portions. When the door handle member rotates to open, the sliding pressure portion presses the opposing guide wall portion on the side of the first rotation direction, and when the door handle member rotates to close, the sliding pressure portion presses the opposing guide wall portion on the side of the second rotation direction, thereby rotating the operating force transmission body.
3. a door handle member attached to the vehicle door so as to be capable of rotating about a predetermined rotation axis from a predetermined initial position toward a predetermined terminal position for opening and from the terminal position toward the initial position for closing; a biasing means for biasing and holding the door handle member at the initial position; an operation force transmission body, which is a rotating body rotatable about a rotation axis extending in the same direction as the rotation axis relative to the vehicle door, and which has a sliding guide part that holds a sliding pressing part provided on the door handle member, and when the door handle member is rotated to open by a user's operation, the operation force transmission body is pressed by the sliding pressing part toward a first rotation direction about the rotation axis and rotates, and when the user's operation is released and the door handle member is rotated to close in accordance with the biasing force of the biasing means, the operation force transmission body is pressed by the sliding pressing part toward a second rotation direction opposite to the first rotation direction about the rotation axis and rotates; a damper attached to a rotation shaft portion of the operation force transmitting body in a manner fixed to the vehicle door, the damper operating to attenuate the rotation forces of the operation force transmitting body in two directions, the first rotation direction and the second rotation direction, to a greater extent as the rotation speed of the operation force transmitting body increases; Equipped with the sliding guide portion extends from the inner side to the outer side in a radial direction relative to the rotation axis of the operation force transmission body and guides sliding of the sliding pressing portion in the extending section, The sliding pressing portion is configured to be positioned more radially outward in the extension section of the sliding guide portion and press the operation force transmitting body as the opening rotation progresses, so that when the opening rotation of the door handle member is performed at a constant rotation speed by the user operation, the force of the damper to push back the door handle member by its operating force is reduced as the opening rotation progresses, The vehicle door has a door panel with an opening formed therein, the door handle member is disposed relative to the door panel such that the rotation axis is provided along an edge of the opening at the rear side of the opening, and has a door handle main body that closes the opening such that a surface facing the front side of the opening is flush with a design surface of the door panel in the initial position, The door handle body rotates around the rotation axis when the user pushes its surface toward the back of the opening in the initial position, and reaches the terminal position by rotating so that its surface faces the back of the opening, and at that terminal position, the door can be opened by pulling the surface from the back of the opening to the front.
Citation Information
Patent Citations
Damper for door handle
JP2001098799A