JP2010228491A - Handrail for vehicle - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To smoothly get in/off a vehicle. <P>SOLUTION: The handrail includes: a rotating shaft 60 supported by a case 51 fixed by an indoor handrail 10a of the vehicle; and a handrail pipe 21 whose base end is connected to the rotating shaft 60, which can be rotated between a storage position with an angle in which all is positioned indoor, and an expansion position with an angle in which the tip end side is extended outdoor from a platform 5. The rotating shaft 60 is secured at a rotating position corresponding to the storage position and the expansion position, respectively by causing the plunger 80 projected from a wall of the case 51 to be engaged with a position setting hole 70 provided on a circumferential surface of the rotating shaft 60. The handrail pipe 21 causes the connection part 25 at a base end side extending in an axis line X direction of the rotating shaft 60 to be provided by connecting to an engagement part 65 of the rotating shaft 60 in the axial direction, and causes the case 51 to be positioned as an extension of the connection part 25. The case 51 can be used as the handrail continued to the indoor handrail 10a and the handrail pipe 21. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a handrail for a vehicle for facilitating getting on and off of an elderly person or a disabled person.

  Various types of handrails for vehicles that are installed in a vehicle and are deployed during use have been proposed for the purpose of facilitating getting on and off of the elderly and disabled persons in the vehicle (for example, Patent Document 1, Patent Document). 2).

JP 2006-298282 A Japanese Patent Laid-Open No. 10-328239

  Patent Document 1 discloses a folding handrail device that is linked to a folding multistage step device. In this folding multi-step device, a quadrilateral link is formed including a first step supported rotatably on a support plate fixed to a vehicle, and a second step and a third step are sequentially formed on the quadrilateral link respectively. The folding handrail device is configured by connecting steps, and a handrail pipe is fixed to a quadrilateral link formed including a support column standing upright from a support plate and a link arm for a third step. . As a result, the handrail pipe of the folding handrail device extends outward substantially parallel to the extension of the multistage step in conjunction with the folding multistage step device expanding outward from the interior of the vehicle.

Patent Document 2 discloses a vehicle boarding / alighting assisting device in which a boarding / alighting assisting step and a boarding / alighting assisting grip are interlocked so as to be movable between a deployed position and a storage position.
In this vehicle boarding / alighting assist device, bar-shaped grip members that serve as handrails are installed on the left and right pillars via brackets in the interior of the vehicle. A base end portion of the extending shaft member is rotatably supported. When the vehicle is in use, the auxiliary grip for getting on and off is rotated so that the front end side of the auxiliary grip for getting on and off protrudes out of the passenger compartment. When not in use, the front end is directed upward in the vehicle interior. It is arranged in the stowed storage position.

  However, the handrail pipe (handrail) of Patent Document 1 is provided independently of the handrail inside the vehicle, and there is no continuity between the handrail in the room and the handrail pipe used when getting on and off. Therefore, it is necessary to change the handrail pipe and the handrail in the room during boarding / alighting, and the boarding / alighting operation is hindered at the portion where the continuity is interrupted.

  Moreover, the auxiliary grip (handrail) for boarding / alighting of patent document 2 is also provided independently from the grip member (handrail) in the room, and, similarly to the case of patent document 1, the boarding / alighting operation is performed at a portion where continuity is interrupted. Is inhibited.

  For this reason, there is a demand for smoother boarding / exiting of the vehicle so that the boarding / unloading operation is not hindered in the handrail that is deployed and used when the vehicle is getting on / off.

  A rotating shaft supported by a case fixed to a handrail in the vehicle interior of the vehicle, a storage position of an angle that is connected to the rotating shaft and is entirely located indoors, and a deployed position of an angle that the front end side extends from the entrance / exit to the outside of the room And a position holding means for holding the rotating shaft at rotating positions corresponding to the retracted position and the unfolded position, respectively, and the handrail bar is arranged in the axial direction of the rotating shaft. The extending base end side end portion is provided so as to be connected to the rotating shaft from the axial direction, and the handrail has a configuration in which the case is positioned on the base end side extension.

According to the present invention, the case is positioned on the extension on the base end side of the handrail bar, and the case can be used as a handrail continuing to the handrail bar. Furthermore, since the case is fixed to the handrail in the room, it can also be used as a handrail continuing to the handrail in the room.
Therefore, when the handrail bar is held at the unfolded position, the handrail that is continuous from the interior of the vehicle to the outside is formed by the handrail in the room, the case, and the handrail bar. When getting on and off, it is not necessary to change the handrail during getting on and off, and the getting on and off operation is not hindered. Therefore, getting on and off the vehicle can be performed more smoothly.

It is an external appearance perspective view which shows embodiment. FIG. 4 is a diagram showing a handrail assembly. It is a longitudinal cross-sectional view which shows the structure of a deployment auxiliary unit. It is an expanded sectional view of the AA part in FIG. It is an expanded sectional view of the BB part in FIG. It is CC arrow line view in FIG. It is an expanded sectional view of the DD section in FIG. It is explanatory drawing which shows the attitude | position change of a handrail pipe. It is explanatory drawing which shows the relationship between a plunger and the position setting hole of a rotating shaft.

Next, embodiments of the present invention will be described in detail.
FIG. 1 is an external perspective view showing an embodiment applied to a vehicle equipped with a slide door, in which (a) shows a retracted state of a handrail shown by opening the slide door, and (b) shows a use state.
A step portion 3 is formed at the entrance / exit 5 that opens on the side surface of the vehicle body 1 and is opened and closed by the slide door 12.
The entrance / exit 5 is provided with a folding step 4 that can be unfolded from below the floor below the step unit 3, and FIG. 1 shows a state in which the folding step 4 is unfolded in use.

  The width direction of the opening of the entrance / exit 5 is demarcated by a front pillar 6 and a rear pillar 7, and a partition wall 8 that separates the driver's seat, front passenger seat side space, and floor side space between the left and right front pillars has a predetermined height. It is provided.

A horizontal bar 9 is also provided above the partition wall 8 to connect the left and right front pillars. A vertical bar 10 extending toward the floor 2 is provided in the vicinity of the front pillar 6 of the horizontal bar 9.
The vertical bar 10 linearly extends from the lower end of the horizontal bar 9 toward the upper surface 8a of the partition wall 8, and is curved from the lower end of the linear portion 10a to the wall surface 8b side along the upper surface 8a of the partition wall 8. And a leg portion 10c extending linearly from the lower end of the curved portion 10b along the wall surface 8b. The lower end of the leg portion 10c is fixed to the floor 2.

A handrail assembly 20 is attached to the straight portion 10 a of the vertical bar 10, and the handrail assembly 20 is disposed near the side edge on the front side of the vehicle body 1 at the entrance 5.
At the entrance / exit 5, a handrail assembly 20 </ b> A is also arranged near the rear side edge of the vehicle body 1 directly on the rear pillar 7 or attached to a bar member similar to the vertical bar 10.

Each of the handrail assemblies 20 and 20A includes a rotatable handrail pipe 21. When the handrail pipe 21 is in the retracted position shown in FIG. 1A, the entire handrail pipe 21 is housed in the room. In the unfolded position shown in FIG. 1B, the front end side of the handrail pipe 21 is held in a state of protruding from the entrance / exit 5 to the outdoor side.
As is apparent from FIG. 1, the handrail assembly 20 on the front pillar 6 side and the handrail assembly 20A on the rear pillar 7 side are symmetrical to each other.

  Hereinafter, the details of the handrail assembly will be described using the handrail assembly 20 on the front pillar 6 side as an example.

2A is a side view of the handrail assembly 20 as viewed from the outside of the vehicle, and FIG. 2B is a front view of the handrail assembly 20 as viewed from the occupant standing at the step portion 3.
FIG. 3 is a longitudinal sectional view showing the configuration of the deployment assisting unit 50 of the handrail assembly 20 and the connecting portion between the deployment assisting unit 50 and the handrail pipe 21.

  The handrail assembly 20 includes a handrail pipe 21 and a deployment assisting unit 50 that supports the handrail pipe 21 and applies assisting force when deployed to a use state.

The handrail pipe 21 is formed by bending a pipe base material 22 having a cylindrical rubber or resin cushion member 23 inserted thereinto at the proximal end side and the distal end side. The connecting portion 25 and the short tube portion 26 are provided.
The connecting portion 25 on the proximal end side of the handrail pipe 21 extends along the axis X direction of the rotation shaft 60 of the deployment assisting unit 50 and is connected to the rotation shaft 60 of the deployment assisting unit 50 by being extrapolated from the axial direction. is doing.

The short pipe portion 26 on the front end side of the handrail pipe 21 extends in the same direction as the connecting portion 25 and approaches the axis X as the distance from the main body portion 24 increases.
The main body part 24 between the connecting part 25 and the short pipe part 26 extends linearly in the radial direction of the rotating shaft 60 (direction perpendicular to the axis X) in a state where the connecting part 25 is connected to the rotating shaft 60. ing.

  An end cap 27 is attached to the tip of the short pipe portion 26. The end cap 27 has a maximum diameter that is slightly larger than the diameter of the cushion member 23 of the handrail pipe 21, and is fixed to the pipe base 22 with a screw (not shown).

As shown in FIG. 3, the rotating shaft 60 to which the connecting portion 25 of the handrail pipe 21 is connected is rotatably supported by the case 51, so that the handrail pipe 21 is rotated around the axis X of the rotating shaft 60. Can be rotated.
In the storage position shown in FIG. 1 (a), the handrail pipe 21 is entirely accommodated in the vehicle compartment, and as shown in FIG. Is held in a substantially vertical state toward the floor 2 (see FIG. 1).
1B, the handrail pipe 21 is held in a state where the short pipe portion 26 side protrudes out of the passenger compartment from the entrance 5.

As shown in FIG. 3, the deployment auxiliary unit 50 includes a case 51 that supports the rotation shaft 60, and a coil spring 43 that is accommodated in the case 51 and applies a rotational force to the rotation shaft 60. .
The case 51 has a basic cylindrical shape, and includes a spring storage portion 56 and a mounting boss portion 85 at the bottom of the side wall thereof. The spring accommodating portion 56 and the mounting boss portion 85 will be described later.

  A cushion member 45 is attached to the outer peripheral surface of the side wall of the case 51 by adhesion or the like. The cushion member 45 is a member made of the same rubber or resin as the cushion member 23 of the handrail pipe 21 and covers at least half of the upper side of the case 51 when viewed from the axial direction as shown in FIG. 4 or FIG. It is provided as follows.

  In the embodiment, when viewed from the axial direction, the diameter of the cylindrical case 51 is set so that the outer shape of at least the upper half of the case 51 including the cushion member 45 matches the outer shape of the connecting portion 25 of the handrail pipe 21. The thickness of the cushion member 45 is set, and as shown in FIG. 3, in the cross-sectional view of the connecting portion 25 of the handrail pipe 21 connected to the rotating shaft 60 and the case 51 provided with the cushion member 45. The height positions are made substantially the same. This is because the case 51 can be used as a handrail continuing to the handrail pipe 21 without a sense of incongruity.

  Furthermore, in the embodiment, the cushion member 45 is formed of the same material as the cushion member 23 of the handrail pipe 21. This is because the case 51 is provided with the same tactile sensation and appearance as the handrail pipe 21 so that the case 51 can be used as a handrail continuing to the handrail pipe 21 without a sense of incongruity.

  The rotary shaft 60 includes a shaft portion 61 accommodated in the case 51, a flange portion 62 exposed to the outside of the case 51, and a connecting portion of the handrail pipe 21 protruding in the axial direction from the flange portion 62. 25, and a fitting portion 65 that fits with 25.

The shaft portion 61 has a small-diameter portion 63 at a portion near the rear end side far from the flange portion 62 and has a boss portion 64 at the rear end. The fitting portion 65 has a contact portion 66 with which the pipe base material 22 of the handrail pipe 21 comes into contact with a portion close to the flange portion 62, and is fitted into the pipe base material 22 at the tip of the contact portion 66. A portion 67 is provided.
In addition, about the expansion | deployment auxiliary | assistant unit 50, let the side suitable for the passenger | crew who gets on and off the entrance / exit 5 be a front side, and let the opposite be a rear side.

A bearing 52 that supports the flange portion 62 side of the shaft portion 61 is press-fitted from the front side to the front end of the case 51, and a bearing 53 that supports the rear end side of the shaft portion 61 is press-fitted from the rear side to the rear end side of the case 51. Is done.
A coil spring 43 is disposed in a space formed between the inner wall of the case 51 and the small diameter portion 63 of the rotating shaft 60. One end of the coil spring 43 is locked in a groove 54 (see also FIG. 4) formed in the side wall of the case 51, and the other end is locked in a groove 68 formed in the shaft portion 61 of the rotating shaft 60. It is designed to function as a torsion spring.

As shown in FIG. 4, in the section between the small-diameter portion 63 and the flange portion 62, the shaft portion 61 has radial position setting holes 70 (70 a, 70 b, 70 b) that are opened at three locations in the circumferential direction. Is provided. The position setting holes 70 are all at the same position in the axial direction of the rotary shaft 60, and the angle between the adjacent position setting holes 70a and 70b is set to be the same as the angle between the retracted position and the deployed position of the handrail pipe 21. Yes.
Here, the angle at the unfolded position of the handrail pipe 21 is set so as to be inclined downward along the line of movement of the occupant descending from the floor 2 shown in FIG. 1 to the step portion 3, the folding step 4, and the ground.

Returning to FIG. 3, the bottom of the side wall of the case 51 is provided with a plunger hole 55 in which the plunger 80 protrudes and retracts so as to be able to fit into the position setting hole 70.
A cylindrical spring storage portion 56 is provided on the outer wall of the case 51 so as to surround the plunger hole 55. The plunger 80 includes a stopper flange 81 at an intermediate position in the axial direction. With the stopper flange 81 seated on the opening periphery of the plunger hole 55, the tip (upper end) enters the position setting hole 70 and is fitted.
A spring 58 is provided between the stopper flange 81 and the clip 57 fitted in the opening of the spring accommodating portion 56, and the plunger 80 is constantly urged in the direction of entering the position setting hole 70. .
A hole 82 is provided at the lower end of the plunger 80 projecting downward from the spring accommodating portion 56, and an operation string 84 is connected via a ring 83 that passes through the hole 82.

Next, at the rear end of the shaft portion 61 of the rotating shaft 60, a spacer 72 and a position restricting plate 73 are fixed with bolts 69 so as to be aligned with a boss portion 64.
The outer diameter of the position restricting plate 73 is set to be slightly small so as not to contact the inner wall of the case 51.

  As shown in FIG. 5, a notch 74 is provided on the periphery of the position restricting plate 73, and a stopper pin 76 is screwed into the bottom of the side wall of the case 51 from the outside, and its leading end faces the notch 74. Yes. A cylindrical elastic ring 77 is fitted into the tip of the stopper pin 76.

  The range of the notch 74 corresponds to the angle between the retracted position and the deployed position of the handrail pipe 21, and in the retracted position (the plunger 80 is fitted in the position setting hole 70 a in the center of the rotating shaft 60). The gap between the one rising wall 74a and the stopper pin 76 in the circumferential direction of the notch is slightly smaller than the thickness of the elastic ring 77 in the free state, and the unfolded position (one of which the plunger 80 sandwiches the central position setting hole) The gap between the other rising wall 74b and the stopper pin 76 in the circumferential direction of the notch is set to be slightly smaller than the thickness of the elastic ring 77 in the free state. ing.

  As a result, the elastic ring 77 fitted into the stopper pin 76 is sandwiched between the stopper pin 76 and the rising wall 74a or 74b of the notch 74 and compressed in each of the retracted position and the deployed position. The rising wall 74a or 74b compressing the elastic ring 77 as a reaction force urges the rotating shaft 60 (the boss portion 64) in the rotational direction away from the stopper pin 76. Therefore, even if there is play between the wall surfaces of the plunger 80 and the position setting hole 70 or the plunger hole 55, the play will be absorbed and the play will be absorbed.

As shown in FIG. 3, the spacer 72 has an outer diameter that does not reach the outer race 53 a of the bearing 53. As a result, even if the outer diameter of the position restricting plate 73 is at the same level as the outer race 53 a of the bearing 53, the position restricting plate 73 is separated from the bearing 53 by the spacer 72. 53a does not come into contact.
An end plate 59 is attached to the rear end of the case 51 so that the position regulating plate 73 and the tip of the stopper pin 76 are not exposed to the outside.

  An attachment boss portion 85 is provided on the rear side of the spring storage portion 56 (the side on which the position restriction plate 73 is provided). The attachment boss portion 85 has a block shape having a rectangular flat bottom surface 86, and has screw holes 87 at four corners of the bottom surface as shown in FIG. The bottom surface 86 is also provided with a notch recess 88 in which the head of the stopper pin 76 is seated between the two screw holes 87 so that the head does not protrude from the bottom surface 86.

A bracket 90 having a horizontal upper wall 91 is attached to the straight portion 10a of the vertical bar 10 indicated by a virtual line in FIG. 2, and the bracket 90 extends toward the rear of the vehicle body.
FIG. 5 also shows a structure for attaching the deployment auxiliary unit 50 to the bracket.
That is, the upper wall 91 of the bracket 90 is provided with a bolt hole 92 corresponding to the screw hole 87 of the mounting boss portion 85 of the case 51.
The deployment auxiliary unit 50 is fixed to the bracket 90 by placing the mounting boss portion 85 on the upper wall 91 and connecting with the bolt 93 using the bolt hole 92 and the screw hole 87, and the vertical bar 10 is connected via the bracket 90. It is attached to the straight part 10a.

As shown in FIG. 3, the fitting portion 65 of the rotating shaft 60 and the connecting portion 25 of the handrail pipe 21 are fitted into the pipe base material 22 of the handrail pipe 21 by fitting the fitting portion 67 of the fitting portion 65. Are connected to each other.
In this state, the tip 22a of the pipe base 22 is abutted against the contact portion 66 of the fitting portion 65 from the axis X direction. Further, the tip 23 a of the cushion member 23 of the handrail pipe 21 protrudes toward the flange portion 62 in the axis X direction from the tip 22 a of the pipe base material 22, and the flange portion 62 in a state of being fitted on the contact portion 66. Has been hit.

As shown in an enlarged cross section in FIG. 7, a bolt hole 67 a is formed in the fitting portion 67 in the radial direction.
A screw 29 penetrating through the hole 22b of the pipe base material 22 is screwed into the bolt hole 67a, and the fitting portion 67 and the pipe base material 22 are fixed to each other by the screw 29.
The screw 29 is a sinking type so that the head does not protrude from the outer peripheral surface of the pipe base material 22. The head of the screw 29 is hidden by a cushion member 23 that covers the pipe base material 22.
That is, after the bolt hole 67a of the fitting portion 67 and the hole 22b of the pipe base material 22 are matched, the screw 29 penetrating the hole 22b is screwed into the bolt hole 67a, thereby positioning the handrail pipe 21 in the rotational direction. In addition, the connecting portion 25 of the handrail pipe 21 and the rotating shaft 60 are connected.

  Thereby, in a state where the deployment auxiliary unit 50 is attached to the vertical bar 10, the plunger 80 is fitted into the position setting hole 70 a in the center of the rotary shaft 60 at the storage position in which the main body 24 of the handrail pipe 21 is vertical. On the other hand, at the deployed position where the short pipe portion 26 side of the handrail pipe 21 is extended outward from the entrance / exit 5, the plunger 80 is fitted into the adjacent side position setting hole 70 b.

Next, the setting of the coil spring 43 that rotates the rotating shaft 60 in the deployment assisting unit 50 will be described.
The coil spring 43 is flexed by the rotation of the rotating shaft 60 due to the movement of the handrail pipe 21 from the deployed position to the retracted position, and the restoring force in the torsional direction is stored at the retracted position. Therefore, when the center position setting hole 70a is disengaged from the plunger 80 (see FIG. 4), the rotating shaft 60 (shaft portion 61) is rotated by the restoring force and the handrail pipe 21 is moved to the deployed position. Will rotate towards.

Here, even if the rotary shaft 60 is rotated to an angle at which the plunger 80 is fitted in the side position setting hole 70b corresponding to the deployed position, the coil spring 43 does not return to the free state, leaving a non-zero restoring force. First set as it is.
Further, when the plunger 80 reaches between the central position setting hole 70a and the side position setting hole 70b, that is, an intermediate position between the retracted position and the deployed position, the restoring force of the coil spring 43 and the weight of the handrail pipe 21 are increased. It is set so that the rotational moment due to.
Here, the intermediate position between the storage position and the development position is not limited to a point that is ½ of the amount of change in angle from the storage position to the development position, and any position between the storage position and the development position is excluded. The position can be set.

The handrail configured as described above is used when the handrail pipe 21 is first in the vertical storage position (A) and is to be used after the sliding door 12 is opened, as indicated by a solid line in FIG. The user or the caregiver pulls the operation string 84 hanging from the deployment assisting unit 50 downward. As a result, as shown in FIG. 9A, the plunger 80 fitted in the central position setting hole 70a of the rotating shaft 60 comes out of the central position setting hole 70a.
The rotating shaft 60, which is disengaged from the plunger 80, starts rotating by the restoring force of the coil spring 43, and the handrail pipe 21 connected to the rotating shaft 60 has the short pipe portion 26 at the tip side of the entrance / exit 5. It rotates around the axis X (see FIG. 8) of the rotating shaft 60 so as to go outward.

When the handrail pipe 21 reaches the intermediate position (B) between the retracted position and the unfolded position, as indicated by phantom lines in FIG. 8, the restoring force of the coil spring 43 and the weight of the handrail pipe 21 as described above. The rotational moment due to is balanced.
Here, as shown in FIG. 9B, the outer peripheral surface of the rotating shaft 60 between the center position setting hole 70 a and the side position setting hole 70 b faces the plunger 80.
When the restoring force and the rotational moment are balanced, the rotation speed of the handrail pipe 21 becomes 0 (zero), so that the handrail pipe 21 does not move to the deployed position shockingly and surprise the user.
Since assistance by the restoring force is still effective at this intermediate position, the handrail pipe 21 can be easily brought to the deployed position by putting a hand on the handrail pipe 21 with a light force.

  When the handrail pipe 21 reaches the unfolded position (C) indicated by the broken line in FIG. 8, the position setting hole 70b on the side of the rotating shaft 60 is aligned with the plunger hole 55, and as shown in FIG. The plunger 80 is fitted into the position setting hole 70b. Therefore, after this, even if the hand is released, the handrail pipe 21 is held in the deployed position.

Since the handrail pipe 21 extends from the passenger compartment to the outside of the passenger compartment at the unfolded position, it is possible for an elderly person or an occupant with a disability to easily get in and out of the handrail pipe 21 as a movement aid.
In this deployed position, the rising wall 74b of the notch 74 of the position regulating plate 73 compresses the elastic ring 77 fitted in the stopper pin 76, so that the handrail pipe 21 is held while being held in the deployed position. The occurrence of backlash is suppressed. Therefore, the user can rely on the handrail (handrail pipe 21) with peace of mind.

Next, when the handrail pipe 21 is stored, the operation string 84 is pulled again. Thereby, the plunger 80 fitted in the position setting hole 70b on the side of the rotating shaft 60 comes out of the position setting hole 70b. In the following, the transition will be the reverse of the case of deployment.
When the fitting with the plunger 80 is disengaged, the handrail pipe 21 starts to rotate in the direction of the retracted position due to its own weight, but when reaching the intermediate position between the deployed position and the retracted position, the restoring force of the coil spring 43 increases and the hand is moved. This balances with the rotational moment due to the weight of the sliding pipe 21.
Thereafter, the handrail pipe 21 is brought to the storage position with a hand.

When the handrail pipe 21 reaches the retracted position, the position setting hole 70a at the center of the rotating shaft 60 is aligned with the plunger hole 55, so that the plunger 80 is fitted into the position setting hole 70a. Therefore, after this, even if the hand is released, the handrail pipe 21 is held in the retracted position.
Even in this retracted position, the rising wall 74a of the notch 74 of the position restricting plate 73 compresses the elastic ring 77 fitted in the stopper pin 76. There is no play.

The handrail assembly 20A is symmetrical with the handrail assembly 20 as described above.
The rotary shaft 60 includes the position setting holes 70b and 70b corresponding to the unfolded positions on both sides of the central position setting hole 70a corresponding to the storage position, so that it can be shared between the handrail assemblies 20 and 20A.
On the other hand, since only the rotation direction of the handrail pipe 21 from the retracted position to the deployed position is different, it is only necessary to replace the coil spring 43 as a torsion spring in the deployment assist unit 50 with a coil spring that is reversely wound.

In the present embodiment, the handrail pipe 21 corresponds to the handrail bar in the invention.
And the structure which the plunger 80 hold | maintained at the spring accommodating part 56 of case 51 and urged | biased by the spring 58 fits in the position setting hole 70 of the rotating shaft 60 in a retracted position and an expansion | deployment position forms a position holding means. Yes.

The embodiment is configured as described above. The rotating shaft 60 supported by the case 51 fixed to the handrail (the straight portion 10a of the vertical bar 10) of the vehicle interior via the bracket 90, and the rotating shaft 60 A handrail pipe 21 that is connected to be pivoted between a retracted position of an angle that is entirely located indoors and a developed position that has an angle extending from the entrance / exit 5 to the outdoor side, and a plunger that projects from the wall of the case 51 Position holding means for holding the rotary shaft 60 at rotational positions respectively corresponding to the retracted position and the unfolded position by fitting 80 into a position setting hole 70 provided on the peripheral surface of the rotary shaft 60, and a handrail pipe 21 includes a connecting portion 25 on the proximal end extending in the axis X direction of the rotating shaft 60 and connected to the fitting portion 65 of the rotating shaft 60 from the axial direction, and a case 51 is provided on the extension of the connecting portion 25. Positioned configuration car It was the use handrail.
Thereby, the case 51 is positioned on the extension of the connecting portion 25 of the handrail pipe 21, and the case 51 can be used as a handrail continuing to the handrail pipe 21. Further, the case 51 is fixed to the vertical bar 10 and can be used as a handrail continuous with the handrails fixed in the room (the horizontal bar 9 and the vertical bar 10).
Therefore, when the handrail pipe 21 is held at the unfolded position, the hand which is continuous from the interior of the vehicle to the outdoors by the indoor handrail (horizontal bar 9, vertical bar 10), the case 51, and the handrail pipe 21. Since the sliding is formed, for example, when getting on and off by handrail, it is not necessary to change the handrail pipe 21 and the indoor handrail (the horizontal bar 9 and the vertical bar 10) in the middle of getting on and off. Not disturbed. Therefore, it becomes possible to get on and off the vehicle more smoothly, further improve usability when getting on and off, and ensure safety.
Further, the case 51 that can be used as a handrail continuing to the handrail pipe 21 extends in the front-rear direction of the vehicle from the handrail fixed indoors. Since it is possible to deposit the weight by placing a hand, to securely hold the case 51 with the hand placed on the case 51, and to draw the bag toward the case 51 side after holding the case 51, Convenience is improved, and getting on and off the vehicle can be performed smoothly.
Further, since the handrail pipe 21 is provided by connecting the connecting portion 25 to the fitting portion 65 of the rotating shaft 60 from the axial direction, a dedicated attachment member is used for connecting the handrail pipe 21 to the rotating shaft 60. There is no need to make it easy. Therefore, an increase in the number of parts can be suppressed, and it is possible to contribute to a reduction in the manufacturing cost of the handrail for the vehicle, and it is possible to provide a product with high added value for the user of the handrail for the vehicle at a lower cost.

Further, in the retracted position, the handrail pipe 21 is arranged so that the short pipe portion 26 side on the distal end side is directed to the floor 2 in the room and the main body portion 24 is perpendicular to the floor 2. The handrail pipe 21 can be used as a handrail. Therefore, it can be used to move the vehicle in the room or stand up from the seat.
Further, since the handrail pipe 21 has a vertical posture in the vertical direction at the retracted position, the handrail pipe 21 can be used as the unfolded position by simply rotating the lower portion of the handrail pipe 21 outward without blocking the entrance / exit 5. Is extended from the entrance to the outside of the room and can be used independently.
Furthermore, depending on the parking position of the vehicle, the handrail pipe 21 may not be set to the deployed position due to space or the like. However, even in such a case, the handrail pipe 21 in the retracted position is on the floor 2 side. Since the main body 24 extends toward the vehicle, it is possible to get on and off using the main body 24.

Further, the outer shape of the case 51 is configured to match at least the outer shape of the connecting portion 25 of the handrail pipe 21, and particularly, as shown in FIGS. 3 to 5, at least the upper half of the case 51 including the cushion member 45. The diameter of the cylindrical case 51 and the thickness of the cushion member 45 are set so that the outer shape matches the outer shape on the upper side of the connecting portion 25, and the hand connected to the rotary shaft 60 as shown in FIG. The height position in the sectional view of the connecting portion 25 of the sliding pipe 21 and the case 51 provided with the cushion member 45 is set to be substantially the same.
Thereby, the case 51 can be used as a handrail continuing to the handrail pipe 21 without a sense of incongruity.
At this time, for example, by matching the curvature and shape of at least the upper half surface of the case 51 including the cushion member 45 with the curvature and shape of the upper half surface of the handrail pipe 21, a hand continuous with the handrail pipe 21 is formed. As a slide, it can be used more comfortably.
Further, the connecting portion 25 extending in the axial direction of the rotating shaft 60 is connected to the rotating shaft 60 from the axial direction, and the outer shape of the case 51 that supports the rotating shaft 60 is configured to match the outer shape of the connecting portion 25. Therefore, when turning the handrail pipe 21 around the rotation shaft 60, no foreign matter is caught in the connecting portion.

Further, a cushion member 23 is provided on the surface of the handrail pipe 21 so as to cover the surface, and a cushion member 45 made of the same rubber or resin material as the cushion member 23 is also provided on the surface of the case 51. Since it is set as the structure, the case 51 comes to have the same tactile sensation and appearance as the handrail pipe 21, and the case 51 can be used as a handrail pipe continuous with the handrail pipe 21 without a sense of incongruity.
In particular, as shown in FIG. 3, since the cushion member 45 of the case 51 and the cushion member of the handrail pipe 21 are provided close to each other with the flange portion 62 interposed therebetween, the handrail pipe 21 is rotated around the rotation shaft 60. There are no gaps in the connecting portion when moving the device so that foreign matter is sandwiched between them.

  Further, the plunger 80 penetrates the wall of the case 51, is urged by the spring 58 in a direction to fit into the position setting hole 70, is held by the case 51, and the operation string 84 connected to the plunger 80 is attached to the spring 58. By pulling down against the urging force, the fitting to the position setting hole 70 is released, so that the start of the unfolding or storing operation is very simple.

  A position regulating plate 73 having a notch 74 corresponding to the rotation range from the retracted position to the deployed position is fixed to the rotating shaft 60, and the notch rising walls 74a and 74b are fitted to the stopper pins 76 at the retracted position and the deployed position. Since the position restricting means configured to compress the embedded elastic ring 77 is provided, the rotating shaft 60 is biased toward the other position at the retracted position or the deployed position, and as a result, the occurrence of play is suppressed.

  The handrail pipe 21 has a linear body portion 24, a short pipe portion 26 formed by bending the distal end and the proximal end thereof in the direction opposite to the center in the width direction of the entrance / exit 5, and a connecting portion 25. Since the main body 24 rotates on a rotation surface perpendicular to the opening surface of the entrance, it can be used as a handle when the main body 24 in the vertical position in the vertical direction is about to get in from the outside in the storage position. The short pipe portion 26 extending horizontally at a high position can be used as a handle when trying to stand up from the seat in the passenger compartment. Moreover, since the short pipe part 26 approaches the passenger | crew who will get in in an expansion | deployment position, it can be utilized as a handle grasped initially.

A coil spring 43 is provided between the rotating shaft 60 and the case 51 to urge the rotating shaft 60 from the retracted position toward the deployed position, and the plunger 80 is fitted into the position setting hole 70a of the rotating shaft. If the handrail is released, the handrail pipe 21 automatically starts moving in the direction of the unfolded position, so that handling is simple.
Furthermore, at the intermediate position between the retracted position and the deployed position, the rotational moment in the deployed position direction by the coil spring 43 and the rotational moment in the retracted position direction due to the weight of the handrail pipe 21 are set to balance. The pipe 21 moves gently toward the intermediate position and does not cause an impact.

  Further, the handrail pipe 21 is formed from a single pipe base material 22 on which a cylindrical rubber or resin cushion member 23 is extrapolated, and the pipe base material 22 is covered with the cushion member 23 so as not to be exposed. Therefore, the pipe base material 22 is not exposed and the appearance of the handrail pipe 21 is not impaired.

  By installing handrail assemblies 20 and 20A around the front pillar 6 and around the rear pillar 7 respectively, handrail pipes 21 are provided on both side edges of the entrance / exit 5 so that boarding / exiting is particularly easy and great security is provided. can get.

In the embodiment, the handrail assembly 20 is attached to the vertical bar 10 for handrail attachment provided between the partition wall 8 and the horizontal bar 9, but it is attached to the front pillar directly or via a bracket or the like. It may be attached.
Moreover, although the example which the boarding / entrance which installs a handrail assembly opens in the side surface of a vehicle body was demonstrated, this invention is not limited to this, A handrail assembly can also be installed in a rear gate other site | part.
In the embodiment, only one deployment position of the handrail pipe 21 is provided. However, by increasing the number of position setting holes 70 in the rotary shaft 60, a plurality of deployment positions can be set, and the postures at other stages can be arbitrarily selected. It becomes possible.

Furthermore, although the handrail pipe 21 which covered the metal pipe base material 22 with the cushion member 23 was used as a handrail rod, it may be a solid material instead of a hollow pipe, or the whole may be made of resin. .
In order to prevent looseness in the position holding of the handrail pipe 21, the elastic ring 77 is fitted into the stopper pin 76, but an elastic body is attached to the notch rising walls 74 a and 74 b side of the position regulating plate 73, or the stopper pin An elastic body may be attached to both the rising wall and the rising wall.

DESCRIPTION OF SYMBOLS 1 Car body 2 Floor 3 Step part 4 Folding step 5 Boarding gate 6 Front pillar 7 Rear pillar 8 Bulkhead 9 Horizontal bar (indoor handrail)
10 Vertical bar (handrail in the room)
12 Slide door 20, 20A Handrail assembly 21 Handrail pipe (handrail bar)
22 Pipe base material 23 Cushion member 24 Main body part 25 Connection part 26 Short pipe part 27 End cap 43 Coil spring 45 Cushion member 50 Deployment auxiliary unit 51 Case 52 Bearing 53 Bearing 53a Outer race 54 Groove 55 Plunger hole 56 Spring storage part 57 Clip 58 Spring 59 End plate 60 Rotating shaft 61 Shaft portion 62 Flange portion 63 Small diameter portion 64 Boss portion 65 Fitting portion 66 Abutting portion 67 Fitting portion 68 Groove 69 Bolt 70 (70a, 70b) Position setting hole 72 Spacer 73 Position restriction plate 74 Notch 74a, 74b Standing wall 76 Stopper pin 77 Elastic ring 80 Plunger 81 Stopper flange 82 Hole 83 Ring 84 Operation string 85 Mounting boss part 86 Bottom face 87 Screw hole 88 Notch recess 90 Bracket 91 Upper wall 92 Bolt hole 93 Bolt

Claims (4)

A rotating shaft supported by a case fixed to a handrail in the interior of the vehicle;
A handrail bar connected to the rotating shaft and rotatable between a storage position of an angle in which the whole is located in the room and a development position of an angle in which the front end side extends from the entrance / exit to the room;
Position holding means for holding the rotation shaft at a rotation position corresponding to the storage position and the deployment position, respectively.
The handrail bar is provided with an end portion on the base end side extending in the axial direction of the rotating shaft connected to the rotating shaft from the axial direction, and the case is positioned on the extension on the base end side. The handrail for vehicles characterized by the above-mentioned.   The handrail for a vehicle according to claim 1, wherein the handrail bar is arranged with the tip side facing the indoor floor in the storage position.   The handrail for a vehicle according to claim 1 or 2, wherein the outer shape of the case is matched with at least the outer shape of the base end side of the handrail rod.   The cushion member is provided on the surface of the handrail bar, and the same cushion member as the cushion member is provided on the surface of the case. A handrail for a vehicle according to claim 1.

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