JP2019105097A - Door check device - Google Patents

Abstract

To provide a door check device having a configuration that makes it difficult to shift from a locked state to a non-locked state and it easy to shift from the locked state to the non-locked state.SOLUTION: A door check device 5 includes a lever 50 in which a recess 51q is formed, a shoe 10 having a main body 11 and a locking portion 12, and a case 30 accommodating the shoe 10. The case 30 has an inner wall surface 30w that is in sliding contact with the main body portion 11. The inner wall surface 30w under being in sliding contact with the main body portion 11 guides the movement of the shoe 10 in the forward direction toward the lever 50 side and the movement of the shoe 10 in the rearward direction AR1 away from the lever 50 side. The friction force that the main body 11 of the shoe 10 receives from the inner wall surface 30w when the shoe 10 moves in the forward direction is less than the friction force DR1 that the main body 11 of the shoe 10 receives from the inner wall surface 30w when the shoe 10 moves in the rearward direction AR1.SELECTED DRAWING: Figure 11

Description

  This specification relates to a door check device.

  As disclosed in Patent Documents 1 and 2 below, a door check device is provided, for example, between a vehicle body and a vehicle door, and a resistance against opening and closing operation of the vehicle door (hereinafter, this force is called a holding force) Generate). The door check device generally includes a lever (also referred to as an arm), and the lever is disposed at a hinge portion between the vehicle body and the vehicle door. One end of the lever is fixed to the vehicle body, and the other end of the lever is disposed inside the vehicle door. A recess is formed on the surface of the lever.

  A case is provided inside the vehicle door, and a shoe is provided in the case. The shoe is biased to the lever side, and the retaining portion of the shoe is engaged with the recess of the lever to generate the holding force as described above. Such a holding force acts to maintain the distance between the vehicle door and the vehicle body at the hinge portion between the vehicle door and the vehicle body, that is, to maintain the opening degree of the vehicle door.

  The operation force stronger than the holding force is externally input to the vehicle door, whereby the vehicle door is opened and closed. For example, when the vehicle door is opened at a predetermined opening on a slope, the vehicle door may be closed, or the vehicle door may be further opened from the desired opening due to wind or the like. Thus, the door check device can suppress the fact that the vehicle door opens and closes against the user's will.

JP 2005-307638 A US Patent Application Publication No. 2006/0059657

  The door check device has a state in which the locking portion of the shoe is locked in the recess of the lever (hereinafter referred to as a locked state) and a state in which the locking portion of the shoe is not locked in the recess of the lever (hereinafter Form a non-locking state). The locked state corresponds to, for example, a half-opened state. In order to change the opening degree of the vehicle door in the locked state, with respect to the force (holding force) forming the locked state, an operating force stronger than the holding force is externally input to the vehicle door There is a need.

  When the holding force generated by the door check device is large, it is difficult to shift from the locked state to the non-locked state, and it is possible to further suppress the opening and closing of the vehicle door against the user's will. For example, in the case of a door check device mounted on a lightweight vehicle door, it may be desirable to be able to generate greater holding power.

  On the other hand, the door check device can also shift the vehicle door in the non-locking state to the locking state such as the half open state. If the force required to realize the transition from the non-locking state to the locking state is small, for example, even a lightweight vehicle door, the vehicle door in the non-locking state is easily transitioned to the half-opened state etc. It becomes possible.

  In this specification, transition from the locked state to the non-locked state can be made difficult as compared with the conventional door check device, and transition from the locked state to the non-locked state can be facilitated. It is an object of the present invention to disclose a door check device having the above configuration.

  The door check device based on the present disclosure has one end fixed to the vehicle body side and the other end disposed inside the vehicle door, and a recess is provided at a position between the one end and the other end. It has a formed lever, a main body portion that moves forward and backward along a predetermined movement direction, and a locking portion provided on the lever side of the main body portion, and the locking portion is arranged to be slidable on the lever A shoe for restricting the opening and closing of the vehicle door by the locking portion being locked in the recess, a biasing member for biasing the shoe to the lever side, and a case fixed to the vehicle door and accommodating the shoe The case has an inner wall in sliding contact with the main body of the shoe, and in the predetermined movement direction, the direction in which the shoe moves toward the lever is the forward direction, and the direction in which the shoe moves in the opposite direction to the lever is retracted. Assuming the direction, the inner wall moves the shoe in the forward direction The sliding movement of the shoe in the backward direction is guided by sliding contact with the body portion of the shoe, and when the shoe moves in the forward direction, the friction force that the body portion of the shoe receives from the inner wall surface is the shoe. When moving in the backward direction, the body portion of the shoe is smaller than the frictional force received from the inner wall surface.

  Preferably, in the door check device, the main body portion of the shoe is formed on the side surface facing the inner wall surface, the housing recess formed in the side surface facing the inner wall surface and recessed in the direction away from the inner wall, and moved within the housing recess The housing recess has a sliding contact body slidingly in contact with the inner wall surface, and the housing recess has a first space between the inner wall surface and the first inner bottom surface facing the inner wall surface, There is a second inner bottom surface facing the inner wall surface at two intervals, the second inner bottom surface is provided closer to the lever than the first inner bottom surface, and the second interval is narrower than the first interval.

  Preferably, in the door check device, the first inner bottom surface is formed to be parallel to a predetermined movement direction, and the second inner bottom surface is a second from the lever side toward the opposite side to the lever The interval is formed to be gradually larger.

  Preferably, in the door check device, the main body portion of the shoe has a side surface facing the inner wall surface of the case, the inner wall surface of the case has an inclined surface portion, and the inclined surface portion It has a shape inclined in a direction toward the side surface side as it goes from the lever side to the opposite side to the lever side.

  According to the door check device having the above configuration, the friction force that the main body portion of the shoe receives from the inner wall surface when the shoe moves in the forward direction is the inner surface of the main body portion of the shoe when the shoe moves in the backward direction. Since it is smaller than the frictional force received from the housing, it is possible to make it difficult to shift from the locked state to the non-locked state, and to make it easier to transition from the locked state to the non-locked state.

1 is a schematic view of a vehicle 1 on which a door check device 5 is mounted. FIG. 5 is an enlarged view of a hinge portion between the vehicle body 2 and the vehicle door 3; FIG. 5 is a perspective view showing a door check device 5; FIG. 6 is a plan view showing the door check device 5; It is arrow sectional drawing along the VV line | wire in FIG. It is arrow sectional drawing along the VI-VI line in FIG. It is a perspective view which shows the state which the door check apparatus 5 decomposed | disassembled. It is sectional drawing which expands and shows the area | region enclosed by the VIII line in FIG. FIG. 7 is an enlarged cross-sectional view showing a part of the main body 11 of the shoe 10 (near the side surface 13) and a part of the lever 50 (near the recess 51s). It is a figure which shows the relationship between the opening degree (horizontal axis) of the vehicle door 3, and operating force (vertical axis | shaft). It is sectional drawing which shows the mode of the door-check apparatus 5 in the 1st step on the way in the transition from a fully closed state to a half open state. It is sectional drawing which shows the mode of the door-check apparatus 5 in the 2nd step on the way in the transition from a fully closed state to a half open state. It is sectional drawing which shows the mode of the door-check apparatus 5 in the 3rd step on the way in the transition from a fully closed state to a half open state. It is sectional drawing which shows the mode of the door-check apparatus 5 in the middle of the final stage on the way in the transition from a half-opened state to a fully closed state. It is sectional drawing which expands and shows a part of door check apparatus in a 1st modification. It is sectional drawing which expands and shows a part of door check apparatus in a 2nd modification.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the following description, the same components and corresponding components will be denoted by the same reference numerals, and overlapping descriptions may not be repeated.

[Vehicle 1]
FIG. 1 is a schematic view of a vehicle 1 on which a door check device 5 is mounted. As shown in FIG. 1, the vehicle 1 includes a vehicle body 2 and a vehicle door 3. An entrance 2H is formed in a side portion of the vehicle body 2. A pair of door hinges 4 is attached to the front edge 2F of the entrance 2H. The vehicle door 3 is swingably connected to the vehicle body 2 via the pair of door hinges 4.

  FIG. 2 is an enlarged view of a hinge portion between the vehicle body 2 and the vehicle door 3. As shown in FIG. 2, an opening 3 H is provided at the front end 3 F of the vehicle door 3. The door check device 5 is disposed inside the vehicle door 3. A lever 50 (lever main body 50M) which is a component of the door check device 5 protrudes from the vehicle door 3 through the opening 3H. One end 50 a of the lever 50 is rotatably fixed to the front edge 2 F of the vehicle body 2 via the bracket 60.

[Door check device 5]
3 and 4 are a perspective view and a plan view showing the door check device 5, respectively. 5 is a cross-sectional view taken along the line V-V in FIG. 4, and FIG. 6 is a cross-sectional view taken along the line VI-VI in FIG. FIG. 7 is a perspective view showing the door check device 5 in a disassembled state. As shown in FIGS. 3 to 7 (mainly FIG. 7), the door check device 5 includes shoes 10 and 20, springs 16 and 26 (biasing members), a case 30, a lever 50 and a bracket 60.

(Case 30, lever 50)
Inside the case 30, the shoes 10 and 20 and the springs 16 and 26 are disposed. The case 30 includes a case body 30a and a cover 30b, which are configured by being combined with each other. The case body 30a has an inner wall surface 30w (FIGS. 5 and 7) in which the opening 31 is formed, and the cover 30b has an inner wall surface 30v in which the opening 32 is formed.

  The lever 50 includes a lever body 50M and a stopper 50N integrated with each other. The lever main body 50M has one end 50a and the other end 50b. One end 50 a is rotatably attached to the bracket 60 using a pin 62 and fixed to the vehicle body 2 via the bracket 60. The lever main body 50M is disposed so as to pass through the openings 31, 32, and the stopper 50N is fixed to the lever main body 50M at a position closer to the other end 50b than the opening 32.

  The case 30 is disposed inside the vehicle door 3 and fixed to the vehicle door 3 using a bolt or the like. A portion on one end 50a side of the lever main body 50M protrudes from the vehicle door 3 (FIG. 2) through the opening 3H (FIG. 2). The portion on the other end 50 b side of the lever main body 50 M is disposed inside the vehicle door 3.

  The lever main body 50M has surfaces 51 and 52. The surfaces 51 and 52 are located opposite to each other in the rotational center axis direction of the lever main body 50M (axial direction of the pin 62). On the surface 51, a convex portion 51p, a concave portion 51q, a convex portion 51r, and a concave portion 51s are formed in order in the direction from the one end 50a side to the other end 50b side. Similarly, on the surface 52, a convex portion 52p, a concave portion 52q, a convex portion 52r, and a concave portion 52s are formed in order in the direction from the one end 50a side to the other end 50b side.

  Recess 51q is formed at a position between one end 50a and the other end 50b of surface 51, and recess 52q is a position between one end 50a and the other end 50b of surface 52 (recessed portion It is formed at a position opposite to 51 q). The half-opened state of the vehicle door 3 is defined by the locking portions 12 and 22 of the shoes 10 and 20 locking to the recessed portions 51 q and 52 q, respectively.

  The lever main body 50M is composed of a metal shaft member and a resin covering layer. The covering layer improves the appearance and durability of the lever main body 50M, and reduces the sliding resistance between the shoes 10 and 20 and the locking portions 12 and 22. By making the thickness of the resin layer different, the convex portion and the concave portion can be easily formed.

  FIG. 8 is an enlarged cross-sectional view of a region surrounded by the line VIII in FIG. FIG. 9 is a cross-sectional view showing a part of the main body 11 of the shoe 10 (near the side surface 13) and a part of the lever 50 (near the recess 51s). In FIG. 9, the sliding contact 13 s (details will be described later) is represented using a broken line for the convenience of illustration. As shown in FIGS. 8 and 9, the shoes 10 and 20 have substantially the same shape and are housed in the case 30 so as to face each other.

(Shoe 10, Spring 16)
The shoe 10 has a main body portion 11 and a locking portion 12. The main body portion 11 has side surfaces 13 and 14, housing recesses 13p and 14p (FIG. 8), a projection 15, and sliding contacts 13s and 14s as its components. The locking portion 12 has a convex (substantially triangular prism) shape, and is provided on the lever 50 side of the main body portion 11. The shoe 10 is disposed such that the locking portion 12 can slide on the surface 51 of the lever 50. The locking portion 12 locks the recessed portions 51 q and 51 s (FIG. 7) of the lever 50 to restrict the opening and closing of the vehicle door 3. The side surfaces 13 and 14 of the shoe 10 (body portion 11) are located on opposite sides of the locking portion 12.

  The side surface 13 is disposed to face the inner wall surface 30w of the case main body 30a. The housing recess 13 p is formed on the side surface 13 and has a shape that is recessed in a direction away from the inner wall surface 30 w. The sliding contact body 13s, which is one of the components of the main body 11, is made of a cylindrical resin member, and is disposed in the housing recess 13p. The sliding contact body 13s can slide on the inner wall surface 30w while moving in the housing recess 13p (in the space between the housing recess 13p and the inner wall surface 30w). The sliding contact body 13s may have a polygonal column shape such as a triangular column shape or a square column shape in addition to a cylindrical shape, or may have a shape such as an elliptical column shape.

  Similarly, the side surface 14 is disposed to face the inner wall surface 30v of the cover 30b. The housing recess 14p is formed on the side surface 14 and has a shape that is recessed in a direction away from the inner wall surface 30v. The sliding contact body 14s, which is one of the components of the main body 11, is made of a cylindrical resin member, and is disposed in the housing recess 14p. The sliding contact body 14s can slide on the inner wall surface 30v while moving in the housing recess 14p (in the space between the housing recess 14p and the inner wall surface 30v). The sliding contact body 14s may have a polygonal pillar shape such as a triangular prism or a quadrangular prism other than a cylindrical shape, or may have a shape such as an elliptic pillar.

  The protrusion 15 is provided on the side opposite to the lever 50 side of the main body 11. The spring 16 is disposed on the side opposite to the lever 50 side of the main body 11 and is positioned by the projection 15. The spring 16 biases the shoe 10 to the lever 50 side. The locking portion 12 of the shoe 10 slides on the surface 51 of the lever 50 as the vehicle door 3 is opened and closed. The shoe 10 receives the force from the lever 50 via the locking portion 12 and moves back and forth along the predetermined movement direction AR.

  When the shoe 10 moves back and forth along the predetermined movement direction AR, the sliding member 13s and the side surface 13 of the shoe 10 come in sliding contact with the inner wall surface 30w of the case body 30a, and the sliding member 14s and the side 14 of the shoe 10 cover 30b. Sliding contact with the inner wall surface 30v. At this time, only the sliding contact member 13s is in sliding contact with the inner wall surface 30w, and the side surface 13 does not have to be in sliding contact with the inner wall surface 30w. Similarly, only the sliding contact body 14s is in sliding contact with the inner wall surface 30v, and the side surface 14 does not have to be in sliding contact with the inner wall surface 30v. The sliding contact with the inner wall surfaces 30w, 30v guides the movement of the shoe 10, and the predetermined moving direction AR of the shoe 10 is defined. In the present embodiment, the predetermined movement direction AR is substantially parallel to the inner wall surfaces 30w and 30v.

(Shoe 20, Spring 26)
The shoe 20 has a main body portion 21 and a locking portion 22. The main body portion 21 has side surfaces 23 and 24, housing recesses 23p and 24p (FIG. 8), a projection 25, and sliding contacts 23s and 24s as its components. The locking portion 22 has a convex (substantially triangular prism) shape, and is provided on the lever 50 side of the main body 21. The shoe 20 is arranged such that the catch 22 can slide on the surface 52 of the lever 50. The locking portion 22 locks the recessed portions 52 q and 52 s (FIG. 7) of the lever 50 to restrict the opening and closing of the vehicle door 3. The side surfaces 23 and 24 of the shoe 20 (body portion 21) are located on the opposite sides of the locking portion 22.

  The side surface 23 is disposed to face the inner wall surface 30 w of the case main body 30 a. The housing recess 23 p is formed on the side surface 23 and has a shape that is recessed in a direction away from the inner wall surface 30 w. The sliding contact body 23s, which is one of the components of the main body portion 21, is formed of a cylindrical resin member, and is disposed in the housing recess 23p. The sliding contact body 23s can slide on the inner wall surface 30w while moving in the housing recess 23p (in the space between the housing recess 23p and the inner wall surface 30w). The sliding contact body 23s may have a polygonal column shape such as a triangular column shape or a square column shape in addition to a cylindrical shape, or may have a shape such as an elliptical column shape.

  Similarly, the side surface 24 is disposed to face the inner wall surface 30v of the cover 30b. The housing recess 24 p is formed on the side surface 24 and has a shape that is recessed in a direction away from the inner wall surface 30 v. The sliding contact body 24s, which is one of the components of the main body portion 21, is formed of a cylindrical resin member, and is disposed in the housing recess 14p. The sliding contact body 14s can slide on the inner wall surface 30v while moving in the housing recess 24p (in the space between the housing recess 24p and the inner wall surface 30v). The sliding contact body 24s may have a polygonal column shape such as a triangular column shape or a square column shape other than a cylindrical shape, or may have a shape such as an elliptical column shape.

  The protrusion 25 is provided on the opposite side of the main body 21 to the lever 50 side. The spring 26 is disposed on the side opposite to the lever 50 side of the main body 21 and is positioned by the projection 25. The spring 26 biases the shoe 20 to the lever 50 side. The locking portion 22 of the shoe 20 slides on the surface 52 of the lever 50 with the opening and closing operation of the vehicle door 3. The shoe 20 receives the force from the lever 50 via the locking portion 22 and moves back and forth along the predetermined movement direction AR.

  When the shoe 20 moves back and forth along the predetermined movement direction AR, the sliding contact body 23s and the side surface 23 of the shoe 20 come in sliding contact with the inner wall surface 30w of the case main body 30a, and the sliding contact body 24s and the side surface 24 of the shoe 20 cover 30b. Sliding contact with the inner wall surface 30v. At this time, only the sliding contact body 23s is in sliding contact with the inner wall surface 30w, and the side surface 23 does not have to be in sliding contact with the inner wall surface 30w. Similarly, only the sliding contact body 24s is in sliding contact with the inner wall surface 30v, and the side surface 24 does not have to be in sliding contact with the inner wall surface 30v. The sliding contact with the inner wall surfaces 30w and 30v guides the movement of the shoe 20, and defines a predetermined moving direction AR of the shoe 20. In the present embodiment, the predetermined movement direction AR is substantially parallel to the inner wall surfaces 30w and 30v.

(Accommodating recess 13p, accommodating recess 23p)
As shown in FIG. 9, the housing recess 13p formed on the side surface 13 has a bottom surface 13a, a first inner bottom surface 13b, a second inner bottom surface 13c, and a top surface 13d. The top surface 13 d is provided closer to the lever 50 than the bottom surface 13 a. The bottom surface 13a and the top surface 13d are parallel to each other and located in a plane orthogonal to the predetermined movement direction AR.

  The first inner bottom surface 13b is provided on the lever 50 side of the bottom surface 13a. The first inner bottom surface 13b is formed to face the inner wall surface 30w, and a first gap L1 is provided between the first inner bottom surface 13b and the inner wall surface 30w. The first interval L1 is a dimension in a direction orthogonal to the predetermined movement direction AR. In the present embodiment, as a preferred aspect, the first inner bottom surface 13b is formed to be parallel to the predetermined movement direction AR. The first interval L1 has the same value at any position of the first inner bottom surface 13b.

  The second inner bottom surface 13c is provided closer to the lever 50 than the first inner bottom surface 13b. The second inner bottom surface 13c is formed to face the inner wall surface 30w, and a second gap L2 is provided between the second inner bottom surface 13c and the inner wall surface 30w. The second interval L2 is a dimension in a direction orthogonal to the predetermined movement direction AR. At any position of the second inner bottom surface 13c, the second interval L2 is narrower than the first interval L1. As a preferable aspect in the present embodiment, the second inner bottom surface 13c is formed such that the second distance L2 gradually increases from the lever 50 side to the opposite side to the lever 50.

  The accommodation recess 13p having the above-described characteristics forms a wedge-shaped accommodation space in a cross sectional view as a whole by the bottom surface 13a, the first inner bottom surface 13b, the second inner bottom surface 13c, and the top surface 13d. The sliding contact body 13s is accommodated in the accommodation space. In a state in which the sliding contact body 13s is not disposed in the accommodation space (no load state), the diameter of the sliding contact body 13s may be set to a value slightly larger than the first distance L1. The housing recesses 14p, 23p, 24p (FIG. 8) are also configured in the same manner as the housing recess 13p. Also in the housing recesses 14p, 23p, 24p, the bottom, the first inner bottom, the second inner bottom and the top form a wedge-shaped housing space as a whole in a cross sectional view, and sliding contact is made in these housing spaces. The bodies 14s, 23s and 24s are accommodated respectively.

(About frictional force)
FIG. 10 is a view showing the relationship between the opening degree (horizontal axis) of the vehicle door 3 and the operation force (vertical axis). The operating force referred to here is the operating force required to change the degree of opening of the vehicle door 3 against the holding force of the door check device 5. FIGS. 11-13 is sectional drawing which shows the mode of the door-check apparatus 5 in the 1st-3rd step on the way in the transition from a fully closed state to a half open state, respectively. FIG. 14 is a cross-sectional view showing the state of the door check device 5 just before the final stage on the way from the half open state to the fully closed state.

  Hereinafter, with reference to FIGS. 10 to 14, the frictional force between the main body 11 of the shoe 10 and the inner wall surfaces 30w, 30v and the frictional force between the main body 21 of the shoe 20 and the inner wall surfaces 30w, 30v Will be explained. Here, the frictional force will be described focusing on the frictional force between the main body portion 11 of the shoe 10 and the inner wall surface 30 w. The friction between the main body 11 and the inner wall 30v, the friction between the main body 21 and the inner wall 30w, and the friction between the main body 21 and the inner wall 30v As the frictional force with the wall surface 30w is the same, the description thereof will not be repeated as appropriate.

  Here, in the predetermined movement direction AR which is the movement direction of the shoe 10, the direction in which the shoe 10 moves in the direction opposite to the lever 50 side is defined as the reverse direction AR1 (FIGS. 11 and 12). The direction of movement toward the lever 50 is defined as the forward direction AR2 (FIGS. 13 and 14). The inner wall surface 30w of the case body 30a guides the movement of the shoe 10 in the backward direction AR1 and the movement of the shoe 10 in the forward direction AR2 by sliding contact with the main body portion 11 of the shoe 10.

(Operation in the opening direction)
As shown in FIGS. 10 and 11, in the first stage on the way to transition from the fully closed state to the half open state, locking is performed on the surface (region between point P1 and point P2) of convex portion 51p. The unit 12 moves relative to the right in FIG. At this time, the shoe 10 receives the force from the convex portion 51p and moves in the backward direction AR1. The shoe 10 moves in the reverse direction AR1 against the elastic restoring force of the spring 16 (FIG. 8) and the frictional force DR1.

  The frictional force DR1 is a frictional force that the main body 11 of the shoe 10 (more specifically, the sliding member 13s constituting the main body 11) receives from the inner wall surface 30w when the shoe 10 moves in the backward direction AR1. It is When the shoe 10 moves in the backward direction AR1, the sliding contact body 13s is located between the second inner bottom surface 13c and the inner wall surface 30w, and forms a compressed state. The sliding contact body 13s is pressed against the inner wall surface 30w by the second inner bottom surface 13c (second interval L2 <first interval L1). The main body portion 11 of the shoe 10 receives a frictional force DR1 larger than the frictional force DR2 (FIG. 13) described later from the inner wall surface 30w.

  As shown in FIGS. 10 and 12, also in the second stage on the way from the fully closed state to the half open state, the shoe 10 is retracted against the elastic restoring force of the spring 16 (FIG. 8) and the frictional force DR1. Move in the direction AR1. The sliding member 13s is located between the second inner bottom surface 13c and the inner wall surface 30w, and the main body 11 of the shoe 10 has a friction force DR1 larger than the friction force DR2 (FIG. 13) described later. Received from The operation force (FIG. 10) required to change the opening degree of the vehicle door 3 turns from an increase to a decrease when the locking portion 12 reaches the top (point P2) of the convex portion 51p.

  As shown in FIGS. 10 and 13, in the third stage on the way from the fully closed state to the half open state, the surface of the convex portion 51p (the area between the point P2 and the point P3) On the other hand, the locking portion 12 relatively moves in the right direction in FIG. The shoe 10 receives the elastic restoring force from the spring 16 (FIG. 8) and moves in the forward direction AR2. The main body portion 11 of the shoe 10 (specifically, the sliding contact body 13s constituting the main body portion 11) receives the frictional force DR2 from the inner wall surface 30w.

  The sliding contact body 13s is located between the first inner bottom surface 13b and the inner wall surface 30w, and the sliding contact body 13s is not compressed compared to the case of the second inner bottom surface 13c (the second interval L2). Form. The sliding member 13s is pressed against the inner wall surface 30w with a smaller force than in the case of the second inner bottom surface 13c. The frictional force DR2 received by the main body 11 from the inner wall surface 30w is smaller than the above-described frictional force DR1.

  The locking portion 12 of the shoe 10 reaches the recess 51 q as it descends the slope between the points P 2 and P 3. As a result, the locking portion 12 is locked to the recess 51 q, and a half open state is formed (point P3). The region between points P3 and P4 of the surface 51 of the lever 50 is provided with a steeper slope than the region between the points P1 and P2. In order to further increase the opening degree from the half open state of the point P3, a larger operation force is required as compared with the case between the points P1 and P2.

  By the input of the operating force, the locking portion 12 of the shoe 10 reaches the point P4 of the convex portion 51r, ascending the slope between the points P3 and P4. At this time, as in the case of FIG. 11, the main body portion 11 (sliding body 13s) of the shoe 10 receives the frictional force DR1 from the inner wall surface 30w. The surface between points P4 and P5 of the convex portion 51r is substantially parallel to the relative movement direction of the shoe 10 and the lever 50 (corresponding to the horizontal direction in the page of FIG. 11). Therefore, the operating force required to change the opening degree of the vehicle door 3 changes from an increase to a decrease when the locking portion 12 reaches the point P4, and then becomes a substantially constant value.

  The operation force required to change the opening degree of the vehicle door 3 starts decreasing when the locking portion 12 reaches the point P5 of the convex portion 51p. At this time, as in the case of FIG. 13, the shoe 10 moves in the forward direction AR2 under the elastic restoring force from the spring 16 (FIG. 8). The main body 11 (the sliding contact 13s) of the shoe 10 receives the frictional force DR2 from the inner wall surface 30w.

  The locking portion 12 of the shoe 10 reaches the recess 51s as it descends the slope between the points P5 and P6. As a result, the locking portion 12 locks in the recess 51s, and another half-opened state is formed (point P6). In the region between the points P6 and P7, a steeper slope is provided as compared to between the points P3 and P4. In order to further increase the opening degree from this half open state, a larger operation force is required as compared to the case between the points P3 and P4.

  By the input of the operation force, the locking portion 12 of the shoe 10 reaches the point P7 ascending the slope between the points P6 and P7. As in the case of FIG. 11, the main body 11 (the sliding contact body 13s) of the shoe 10 receives the frictional force DR1 from the inner wall surface 30w. The surface after the point P7 is substantially parallel to the relative movement direction of the shoe 10 and the lever 50 (corresponding to the left-right direction in the plane of FIG. 11). The operating force required to change the opening degree of the vehicle door 3 changes from an increase to a decrease when the locking portion 12 reaches the point P7, and then becomes a substantially constant value. The vehicle door 3 can be easily opened with a small operating force until the stopper 50N (FIG. 8) and the cover 30b contact each other.

(Operation in the closing direction)
As shown in FIG. 10, in the operation in the closing direction, an operation opposite to the operation in the opening direction shown at the points P1 to P7 is performed. The vehicle door 3 according to the present embodiment has a predetermined mechanism mounted on the vehicle door 3, so that the closing operation can be performed with a smaller operating force than in the case of the opening operation.

  As shown in FIG. 14, at the final stage on the way of transition from the half open state to the fully closed state, the locking portion 12 is illustrated with respect to the surface of the convex portion 51 p (region between point P2 and point P1). Move relative to the left in 14 The shoe 10 receives the elastic restoring force from the spring 16 (FIG. 8) and moves in the forward direction AR2. The main body 11 (the sliding contact 13s) of the shoe 10 receives the frictional force DR2 from the inner wall surface 30w. The frictional force DR2 is smaller than the above-described frictional force DR1. In FIG. 10, a region CP indicated by hatching is shown between the point P2 'and the point P1'. At the final stage on the way from the half open state to the fully closed state, energy (an integral value of the operating force) corresponding to the region CP is applied to the vehicle door 3 as energy for closing the vehicle door 3.

(Action and effect)
As described at the beginning, in order to change the opening degree of the vehicle door 3 in the locked state, the operating force stronger than the holding force with respect to the force forming the locked state (retention force) Needs to be input from the outside to the vehicle door 3 (door check device 5). When the holding force generated by the door check device 5 is large, it is difficult to shift from the locked state to the non-locked state, and for example, it is possible to further suppress the opening and closing of the vehicle door against the user's intention. On the other hand, if the force required to realize the state transition from the non-locking state to the locking state is small, for example, even a lightweight vehicle door, the vehicle door in the non-locking state is easily half-opened And so on.

  When the sliding contact body 13s, the first inner bottom surface 13b and the second inner bottom surface 13c are not provided in the main body 11 of the shoe 10, the shoe 10 moves in the forward direction even when the shoe 10 moves in the backward direction AR1. Also when moving to AR2, the main body portion 11 (side surface 13) of the shoe 10 receives a constant frictional force from the inner wall surface 30w.

  In such a case, for example, the peak value of the operating force indicated by points P2, P4 and P7 (see FIG. 10) may be smaller than in the case of the embodiment (the case shown in FIG. 10). This is synonymous with the fact that the holding force generated by the door check device can be smaller than in the case of the embodiment, and the transition from the locked state to the non-locked state is made as compared with the case of the embodiment. This makes it easy to open and close the vehicle door, for example, when a strong wind or the like blows.

  When the sliding contact 13s, the first inner bottom surface 13b and the second inner bottom surface 13c are not provided in the main body 11 of the shoe 10, for example, peak values of operating forces shown at points P3 and P6 (FIG. 10) , May be larger than in the case of the embodiment (the case shown in FIG. 10). This is equivalent to the fact that the frictional force DR2 (see FIG. 13) generated when transitioning from the non-locking state to the locking state can be larger than in the case of the embodiment. The frictional force DR2 acting on the shoe 10 acts as a larger loss on the input operation force as compared to the embodiment, so that an energy loss occurs and the vehicle door is in a non-locking state It is not easy to make the transition to the half open state or the like as compared with the case of the embodiment.

  On the other hand, in the door check device 5 according to the embodiment, the sliding contact body 13s, the first inner bottom surface 13b, and the second inner bottom surface 13c act organically. The frictional force DR2 received by the main body portion 11 of the shoe 10 from the inner wall surface 30w when the shoe 10 moves in the forward direction AR2 is the main body portion 11 of the shoe 10 from the inner wall surface 30w when the shoe 10 moves in the backward direction AR1. It is smaller than the received frictional force DR1.

  When transitioning from the locked state to the non-locked state, a larger frictional force DR1 acts, so it is possible to further suppress, for example, the opening and closing of the vehicle door against the intention of the user. On the other hand, when transitioning from the non-locking state to the locking state, a smaller friction force DR2 acts, so that the vehicle door in the non-locking state can be easily transitioned to the half-opened state etc. .

First Modification
As described with reference to FIG. 9, in the above embodiment, the housing recess 13 p has the first inner bottom surface 13 b (first interval L 1) and the second inner bottom surface 13 c (second interval L 2). ing. By configuring the second interval L2 to be smaller than the first interval L1, the frictional force DR2 is smaller than the frictional force DR1 (FIGS. 11 to 13).

  As shown in FIG. 15, the frictional force DR2 may be smaller than the frictional force DR1 depending on the shape of the inner wall surface 30w. In the door check device shown in FIG. 15, the main body portion 11 of the shoe 10 has a side surface 13 opposed to the inner wall surface 30w of the case 30, and the inner wall surface 30w of the case 30 is a first wall portion 30w1, the first It has 2 wall surface part 30w2, and inclined surface part 30w3.

  The first wall surface portion 30w1 and the second wall surface portion 30w2 are formed to be parallel to the predetermined movement direction AR of the shoe 10, and the inclined surface portion 30w3 is provided on the lever 50 side of the first wall surface portion 30w1. The second wall surface portion 30w2 is provided on the lever 50 side of the inclined surface portion 30w3. The inclined surface portion 30w3 has a shape inclined in a direction toward the side surface 13 as it goes from the lever 50 side to the opposite side to the lever 50 side.

  When the shoe 10 moves in the forward direction AR2 and the side surface 13 moves down the inclined surface portion 30w3, the frictional force that the side surface 13 receives from the inner wall surface 30w gradually decreases. When the shoe 10 moves in the reverse direction AR1 and the side surface 13 moves up the inclined surface portion 30w3, the frictional force that the side surface 13 receives from the inner wall surface 30w gradually increases. Therefore, even with this configuration, when the shoe 10 moves in the forward direction AR2, the frictional force DR2 received by the main body portion 11 of the shoe 10 from the inner wall surface 30w is the shoe when the shoe 10 moves in the backward direction AR1. The ten main body portions 11 are smaller than the frictional force DR1 received from the inner wall surface 30w, and the same operation and effect as those of the above-described embodiment can be obtained.

  When the inner wall surface 30 w having such a shape is adopted, the side surface 13 may or may not be formed to be parallel to the predetermined movement direction AR. The side surface 13 moves in a predetermined movement direction AR while being elastically deformed as shown in FIG. 15, for example. The configuration is not limited to such a configuration, and a portion on the side of the lever 50 in the side surface 13 may have a shape (a shape as shown in FIG. 15) that protrudes outward as compared with the portion on the opposite side. It may be Also by the said structure, the effect similar to the above-mentioned embodiment can be acquired. The inner wall surface 30 w may not have the first wall surface portion 30 w 1 as its component, and may not have the second wall surface portion 30 w 2. The inclined surface portion 30w3 has a shape which is inclined in a direction toward the side surface 13 as it goes from the lever 50 side to the opposite side to the lever 50 side. If the inner wall surface 30w has the inclined surface portion 30w3 having such a shape, the same operation and effect as described above can be obtained.

Second Modified Example
In the above embodiment, the first inner bottom surface 13b (FIG. 9) is formed to be parallel to the predetermined movement direction AR, and the second inner bottom surface 13c is connected to the lever 50 from the lever 50 side. Is formed such that the second interval L2 gradually increases toward the opposite side.

  As shown in FIG. 16, without being limited to the above configuration, the first inner bottom surface 13b and the second inner bottom surface 13c are formed in the same inclined plane, and between the inner bottom surface and the inner wall surface 30w. The first interval L1 and the second interval L2 may be configured to be gradually smaller toward the lever 50 side. Also by the said structure, the effect similar to the above-mentioned embodiment can be acquired.

  Although the embodiments have been described above, the above disclosure is illustrative in all points and not restrictive. The technical scope of the present invention is indicated by the claims, and is intended to include all modifications within the meaning and scope equivalent to the claims.

  Reference Signs List 1 vehicle, 2 vehicle body, 2F front edge, 2H entrance, 3 vehicle door, 3F front edge, 3H, 31, 32 opening, 4 door hinge, 5 door check device, 10, 20 shoe, 11, 21 main body 12, 22, locking portion 13, 14, 23, 24 side surface, 13a bottom surface, 13b first inner bottom surface, 13c second inner bottom surface, 13d top surface, 13p, 14p, 23p, 24p housing recess, 13s, 14s, 23s, 24s sliding body, 15, 25 projection, 16, 26 spring, 30 case, 30a case body, 30b cover, 30b, 30w inner wall surface, 30w1 first wall portion, 30w2 second wall portion, 30w3 inclined surface portion, 50 Lever, 50 M Lever body, 50 N stopper, 50 a one end, 50 b other end, 51, 52 surface, 51 p, 51 r, 52 p 52r convex part, 51q, 51s, 52q, 52s concave part, 60 bracket, 62 pin, AR predetermined moving direction, AR1 backward moving direction, AR2 forward moving direction, CP area, DR1, DR2 friction force, L1 first interval, L2 second interval .

Claims (4)

A lever having one end fixed to the vehicle body and the other end disposed inside the vehicle door, and a recess formed at a position between the one end and the other end;
A main body portion which moves forward and backward along a predetermined movement direction, and a locking portion provided on the lever side of the main body portion, the locking portion is disposed so as to be slidable on the lever, A shoe that regulates the opening and closing of the vehicle door by the locking portion locking in the recess;
An urging member for urging the shoe toward the lever;
And a case fixed to the vehicle door and housing the shoe.
The case has an inner wall slidingly contacting the body portion of the shoe,
Assuming that the direction in which the shoe moves toward the lever among the predetermined moving directions is the forward direction, and the direction in which the shoe moves in the direction opposite to the lever is the reverse direction.
The inner wall surface guides the movement of the shoe in the forward direction and the movement of the shoe in the backward direction by sliding contact with the main body of the shoe.
The frictional force that the main body of the shoe receives from the inner wall when the shoe moves in the forward direction is received by the main body of the shoe from the inner wall when the shoe moves in the reverse direction. Less than friction force,
Door check device. The body portion of the shoe is
A side opposite to the inner wall;
An accommodation recess formed on the side surface and recessed in a direction away from the inner wall surface;
A sliding contact member disposed in the housing recess and slidingly contacting the inner wall surface while moving in the housing recess;
The housing recess is
A first inner bottom surface facing the inner wall surface at a first distance from the inner wall surface;
And a second inner bottom surface facing the inner wall surface at a second distance from the inner wall surface,
The second inner bottom surface is provided closer to the lever than the first inner bottom surface,
The second interval is narrower than the first interval,
The door check device according to claim 1. The first inner bottom surface is formed to be parallel to the predetermined movement direction,
The second inner bottom surface is formed such that the second distance gradually increases from the lever side toward the opposite side to the lever.
The door check device according to claim 2. The main body portion of the shoe has a side surface facing the inner wall surface of the case,
The inner wall surface of the case has an inclined surface portion,
The inclined surface portion has a shape inclined in a direction toward the side surface as it goes from the lever side to the opposite side to the lever side.
The door check device according to claim 1.

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