JP6948219B2 - Impact absorption mechanism for vehicles - Google Patents

Description

The present invention relates to a vehicle shock absorbing mechanism that absorbs a shock applied to a vehicle or the like.

Conventionally, a vehicle such as an automobile is provided with a damper in order to absorb an impact received during traveling or the like. Dampers include oil dampers that utilize the resistance force of oil and friction dampers that utilize the frictional force between members, but friction dampers may be used in places where it is not preferable to handle oil.

As such a friction damper, a friction damper including a sliding member, a storage portion for accommodating the sliding member, and a friction generating means for generating a frictional force between the sliding member is known (for example,). See Patent Document 1).

The friction damper of Patent Document 1 includes a plate-shaped sliding member and a square cylindrical storage portion for accommodating the sliding member, and the storage portion generates a frictional force between the sliding member and the sliding member. A friction generating means is provided. The friction generating means includes a plurality of friction members that abut on the front surface and the back surface of the plate-shaped sliding member, and a plurality of urging members that are provided inside the storage portion and press each of the plurality of friction members against the sliding member. , It is equipped with an adjusting means for adjusting the frictional force.

The adjusting means is a screw hole formed in the accommodating portion facing the urging member on the surface side of the sliding member, and a friction member is screwed into the screw hole from the outside of the accommodating portion in a direction perpendicular to the sliding member. By adjusting the screwing amount of the bolt, the frictional force acting by the urging force that presses the friction member in the direction perpendicular to the sliding member is adjusted. When an impact force is input straight to the straight line connecting both ends of the friction damper, the adjusted urging force acts to generate a predetermined frictional force.

Japanese Unexamined Patent Publication No. 2004-353813

By the way, when the impact force on the vehicle is input to the friction damper, the impact force may not be input straight but tilted with respect to the straight line connecting both ends of the friction damper depending on the mounting location of the friction damper. be.

However, according to the friction damper of Patent Document 1, since the adjusting means is arranged only on the surface side of the sliding member and the urging force can be adjusted only from one direction, the impact force is input with different inclinations. In this case, it is difficult to obtain a predetermined frictional force.

In addition, vehicles such as automobiles are provided with a seat portion on which an occupant sits. In order to absorb the impact on the occupant, not only the impact received by the vehicle from the outside such as the road surface is absorbed by the damper of the suspension, but also the impact received by the seat portion from the support portion constituting the structural portion of the vehicle is absorbed. But the impact on the occupants is absorbed.

In view of the above problems of the prior art, an object of the present invention is an impact for a vehicle provided with a damper capable of absorbing the impact of the seat portion received from the support portion of the vehicle and obtaining a predetermined frictional force regardless of the mounting location. The purpose is to provide an absorption mechanism.

[1] In order to achieve the above object, the impact absorbing mechanism for a vehicle of the present invention is
A seat portion provided on the vehicle so that the occupant can be seated, a support portion forming a structural portion of the vehicle separate from the seat portion, and a support portion provided between the support portion and the seat portion. Equipped with a damper
The damper includes a sliding member extending linearly and a storage portion for accommodating the sliding member, and the storage portion is provided with a friction generating means for generating a frictional force between the sliding member and the sliding member.
The friction generating means is provided on the outer surface of the sliding member, a plurality of contact members that abut on the outer surface, and the plurality of contact members provided in the storage portion on the axis of the sliding member. It is provided with a plurality of urging means for pressing each of the plurality of contact members against the sliding member by applying an urging force toward the sliding member.
A plurality of the urging means and the abutting member are provided in the longitudinal direction of the sliding member and are arranged at the same position.
In the cross section of the sliding member, the inner product of the vector of the urging force acting on each of the plurality of abutting members from each of at least one pair of urging means among the plurality of urging means becomes 0 or negative. As described above, the plurality of contact members and the plurality of urging means are arranged.

According to such a configuration, the seat portion provided on the vehicle and configured to allow the occupant to sit, the support portion constituting the structural portion of the vehicle separate from the seat portion, and the support portion and the seat portion. It is equipped with a damper provided between them. Therefore, when an impact is applied from the support portion of the vehicle to the seat portion, the impact transmitted from the support portion to the seat portion is absorbed by the damper.

Specifically, when an impact force is input to the damper, the sliding member is housed in the storage portion, and a frictional force is generated between the sliding member and the sliding member by the friction generating means. A plurality of friction generating means are formed by pressing each of a plurality of contacting members that come into contact with the outer surface of the sliding member against the sliding member by a plurality of urging means provided in the storage portion to exert an urging force. A frictional force can be generated between the abutting member and the sliding member from the direction of. Further, the urging force of the urging means can be easily adjusted only at the same position in the longitudinal direction of the sliding member without considering the difference in the action of the urging force in the longitudinal direction of the sliding member. Further, the plurality of abutting members and the plurality of urging means have an internal product of vectors of urging forces acting on each of the plurality of abutting members from at least each of the pair of urging means in the cross section of the sliding member. Since it is arranged so as to be 0 or negative, the urging force can be applied not only in one direction but also in any direction. Therefore, when the impact force on the vehicle is input to the damper, the sliding member is crossed regardless of the direction in which the impact force is tilted with respect to the straight line connecting both ends of the damper. On the surface, the frictional force can be increased by increasing the urging force of the urging means at the position where the input escapes and the frictional force becomes small, and the friction generating means as a whole can have a predetermined frictional force. As a result, the frictional force can be adjusted to a predetermined value regardless of the mounting location of the damper.

[2] Further, in the damper of the present invention,
The vehicle comprises an independent floor panel in which the seat portion is installed away from the support portion.
One end of the damper is connected to the support portion of the vehicle.
It is preferable that the independent floor panel is connected to the other end of the damper.

According to such a configuration, the impact transmitted from the support portion of the vehicle to the independent floor panel is absorbed by the damper. Therefore, it is possible to absorb the impact transmitted to the seat portion provided integrally with the independent floor panel.

[3] Further, in the damper of the present invention,
The support portion is a floor panel on which the seat portion is installed.
The seat portion includes a link mechanism capable of adjusting the height of the seat portion on which the occupant sits with respect to the floor panel.
The link mechanism rotates a side frame constituting the left and right frames of the seating portion, the damper as a link rotatably connected to the side frame, and a lower end portion of the damper provided on the floor panel. It is preferable to include a connecting portion that is movably connected and an operating portion that adjusts the height by rotating the damper.

According to this configuration, since the link portion of the link mechanism consisting of the side frame, the damper as a link, and the connecting portion is used as a damper, the link mechanism for adjusting the height of the seating portion is used to move the floor panel to the seat portion. The transmitted impact can be absorbed by the damper.

[4] Further, in the damper of the present invention,
The support portion is a floor panel on which the seat portion is installed.
The seat portion includes side frames that form the left and right frames of the seat portion.
The lower end of the damper is supported by the floor panel.
It is preferable that the side frame is supported by the upper end portion of the damper.

According to this configuration, since a damper is provided between the side frame and the floor panel constituting the seating portion instead of the legs, the impact transmitted from the floor panel to the seat portion can be absorbed by the damper.

[5] Further, in the damper of the present invention,
The support portion is a floor panel on which the seat portion is installed.
The seat portion includes side frames constituting the left and right frames of the seating portion, slide rails that support the side frames, and fixed rails that are fixed to the floor panel and support the slide rails so as to be movable back and forth.
One end of the damper is supported by the fixed rail or the floor panel.
It is preferable that the slide rail is supported or the slide rail is moved and brought into contact with the other end of the damper.

According to such a configuration, since a damper is provided between the fixed rail or the floor panel fixed to the floor panel and the slide rail provided on the fixed rail so as to be movable back and forth, a seat that moves integrally with the slide rail is provided. The front-back impact applied to the part can be absorbed by the damper.

[6] Further, in the damper of the present invention,
It is preferable that each of the plurality of urging means and the plurality of contact members is arranged so as to have rotational symmetry around the axis in the cross section of the sliding member.

According to such a configuration, since the urging means is arranged so as to have rotational symmetry around the axis line, the position or the urging force for which the urging force is desired to be increased can be determined regardless of the direction in which the impact force input is tilted. The urging means is arranged at a position close to the position to be increased, and the urging force of the urging means can be easily adjusted.

[ 7 ] Further, in the damper of the present invention,
The sliding member has a cylindrical shape and has a cylindrical shape.
Inside the storage portion, it extends along the axis of the storage portion and is located at least inside the storage portion where the friction generating means is arranged and slidably supports the inner peripheral surface of the sliding member. It is preferable that an inner cylinder is provided.

According to this configuration, the sliding member that receives the urging force of the urging means is slidably supported from the inside by the inner cylinder, so that the sliding member does not escape inward and receives a large urging force. can.

[ 8 ] Further, in the damper of the present invention,
The storage portion is a cylindrical or bottomed cylindrical cylinder.
The sliding member is a square cylindrical piston rod.
It is preferable that the friction generating means is arranged with respect to each of a plurality of planes constituting the square tubular outer surface.

According to such a configuration, since the accommodating portion is a cylindrical or bottomed cylindrical cylinder and the sliding member is a square cylindrical piston rod, the piston rod and the cylinder can be easily configured. Further, since the friction generating means is arranged with respect to each of the plurality of planes forming the square tubular outer surface, it is possible to easily secure an area in which the contact member of the friction generating means abuts on the outer surface.

[ 9 ] Further, in the damper of the present invention,
The storage portion is a cylindrical or bottomed cylindrical cylinder.
The sliding member is a prismatic piston rod.
It is preferable that the friction generating means is arranged with respect to each of a plurality of planes constituting the outer surface of the prismatic column.

According to such a configuration, since the accommodating portion is a cylindrical or bottomed cylindrical cylinder and the sliding member is a prismatic piston rod, the piston rod and the cylinder can be easily configured. Further, since the friction generating means is arranged with respect to each of the plurality of planes forming the prismatic outer surface, it is possible to easily secure an area in which the contact member of the friction generating means abuts on the outer surface.

[1 0] Further, in the damper of the present invention,
The contact member in the friction generating means is provided at the end of the storage portion on the insertion side of the sliding member.
A pedestal portion that protrudes radially outward from the surface of the storage portion,
It is preferable that the pedestal portion is provided with a through hole that penetrates from the outer end surface to the inner peripheral surface, the contact member is slidably provided, and the urging means is provided on the outer end surface side.

According to such a configuration, by providing the friction generating means at the end of the storage portion on the sliding member insertion side, it is possible to maximize the stroke of generating friction with a limited stroke of the sliding member. .. Further, a through hole penetrating from the outer end surface to the inner peripheral surface is formed in the pedestal portion protruding radially outward from the surface of the storage portion, and a contact member is provided in the through hole to provide an urging means on the outer end surface side. Since it is provided, the configuration can be simplified.

[1 1 ] Further, in the damper of the present invention,
The urging means is housed and compressed in the through hole between the female threaded portion provided in the through hole, the male threaded portion screwed into the female threaded portion, and the male threaded portion and the contact member. It is preferable that the first elastic member has a large repulsive force.

According to this configuration, the male threaded portion is screwed into the female threaded portion provided in the through hole, the first elastic member is compressed by the male threaded portion, and the abutting member is urged, so that the urging force can be easily adjusted. Can be done.

[1 2] Further, in the damper of the present invention,
A spring seat is provided inside the storage portion.
It is preferable that the spring seat is provided with a second elastic member that urges the sliding member in the extension direction.

According to such a configuration, since the sliding member is also urged by the second elastic member, it is possible to cope with a larger impact force.

[1 3] In addition, in the damper of the present invention,
A seat portion provided on the vehicle so that the occupant can be seated, a support portion forming a structural portion of the vehicle separate from the seat portion, and a support portion provided between the support portion and the seat portion. Equipped with a damper
The damper includes a sliding member extending linearly and a storage portion for accommodating the sliding member, and the sliding member is provided with a friction generating means for generating a frictional force between the sliding member and the storage portion.
The friction generating means is provided on the inner peripheral surface of the accommodating portion, a plurality of contact members that abut on the inner peripheral surface, and the plurality of contact members provided on the sliding member on the inner peripheral surface. It is provided with an urging means for pressing each of the plurality of contact members against the inner peripheral surface by applying an urging force toward the inner peripheral surface.
A plurality of the urging means and the abutting member are provided in the longitudinal direction of the sliding member and are arranged at the same position.
In the cross section of the sliding member, the inner product of the vector of the urging force acting on each of the plurality of abutting members from each of at least one pair of urging means among the plurality of urging means becomes 0 or negative. As described above, it is preferable that the plurality of contact members and the plurality of urging means are arranged.

According to such a configuration, a seat portion provided on the vehicle and configured to allow an occupant to sit, a support portion forming an outer structural portion of the vehicle separate from the seat portion, and the support portion and the seat portion. It is equipped with a damper provided between the two. Therefore, when an impact is applied from the support portion of the vehicle to the seat portion, the impact transmitted from the support portion to the seat portion is absorbed by the damper.
Specifically, when an impact force is input to the damper, the sliding member is housed in the storage portion, and a frictional force is generated between the sliding member and the sliding member by the friction generating means. The friction generating means applies an urging force by pressing each of the plurality of contact members that come into contact with the inner peripheral surface of the storage portion against the inner peripheral surface of the storage portion by a plurality of urging means provided on the sliding member. As a result, frictional force can be generated between the contact member and the inner peripheral surface from a plurality of directions. Further, the urging force of the urging means can be easily adjusted only at the same position in the longitudinal direction of the sliding member without considering the difference in the action of the urging force in the longitudinal direction of the sliding member. Further, the plurality of abutting members and the plurality of urging means have an internal product of vectors of urging forces acting on each of the plurality of abutting members from at least each of the pair of urging means in the cross section of the sliding member. Since it is arranged so as to be 0 or negative, the urging force can be applied not only in one direction but also in any direction. Therefore, when the impact force on the vehicle is input to the damper, the sliding member is crossed regardless of the direction in which the impact force is tilted with respect to the straight line connecting both ends of the damper. The frictional force can be increased by increasing the urging force of the urging means at a position where the frictional force becomes small if it is left as it is on the surface, and the frictional force can be set to a predetermined value as a whole of the friction generating means. As a result, the frictional force can be adjusted to a predetermined value regardless of the mounting location of the damper.

It is a top view which shows the shock absorption mechanism for a vehicle which concerns on 1st Embodiment of this invention. It is a side view which shows the shock absorption mechanism for a vehicle which concerns on 2nd Embodiment of this invention. It is a perspective view which shows the shock absorption mechanism for a vehicle which concerns on 3rd Embodiment of this invention. It is a side view which shows the shock absorption mechanism for a vehicle which concerns on 4th Embodiment of this invention. It is a perspective view which shows the damper which concerns on this invention. FIG. 6A is a front view showing a state in which the sliding member of FIG. 5 is housed in the storage portion and the damper is contracted. FIG. 6B is an operation diagram in a state where the sliding member of FIG. 5 comes out of the storage portion and the damper is extended. FIG. 6B is a cross-sectional view taken along the line VII-VII of FIG. 6B. FIG. 6B is a cross-sectional view taken along the line VIII-VIII of FIG. 6B. It is an enlarged view of the main part of the damper of FIG. FIG. 10A is an action diagram when an impact force of the damper according to the present invention is applied. FIG. 10B is an operation diagram when the damper is contracted. FIG. 11A is a cross-sectional view of the damper in the input state of FIG. 10A before adjusting the friction generating means. FIG. 11B is an operation diagram of the damper in the input state of FIG. 10A after adjusting the friction generating means. It is sectional drawing which shows the damper of another aspect of FIG. It is sectional drawing which shows the damper of another aspect of FIG.

(First Embodiment)
Hereinafter, the first embodiment of the present invention will be described with reference to the drawings. As shown in FIG. 1, the vehicle shock absorbing mechanism according to the first embodiment of the present invention is provided in a vehicle 1 used for, for example, an attraction in an amusement park, and a seat portion 6 is provided so that an occupant can sit on it. A support portion 3 that constitutes a structural portion of the vehicle 1 that is separate from the seat portion 6 and a damper 10 provided between the support portion 3 and the seat portion 6 are provided.

The vehicle 1 includes an independent floor panel 2 in which the seat portion 6 is installed away from the support portion 3, one end of the damper 10 is connected to the support portion 3 of the vehicle 1, and the independent floor panel 2 is connected to the other end of the damper 10. Is connected.

Specifically, the vehicle 1 is provided on the support portion 3, the first connection portion 4 provided on the support portion 3 and oscillatingly connected to one end of the damper 10, the damper 10, and the damper provided on the independent floor panel 2. A second connecting portion 5 for swingably connecting the other end of the ten, an independent floor panel 2 connected to a plurality of dampers 10 via the second connecting portion 5, and an independent floor panel 2 provided with an occupant. It is provided with a supporting seat portion 6.

Vehicle 1 receives an impact force at the time of sudden start or sudden stop. According to the above configuration, the impact transmitted from the support portion 3 of the vehicle 1 to the independent floor panel 2 is absorbed by the damper 10. Therefore, it is possible to absorb the impact transmitted to the seat portion 6 provided integrally with the independent floor panel 2. The specific configuration of the damper 10 will be described later.

(Second Embodiment)
Next, a second embodiment of the present invention will be described. As shown in FIG. 2, the vehicle 1 is a vehicle such as an automobile. Further, the support portion 3 is a floor panel on which the seat portion 6 is installed. The seat portion 6 includes a link mechanism 51 whose height can be adjusted with respect to the support portion (floor panel) 3 of the seat portion 41 on which the occupant sits.

The link mechanism 51 is fixed to a side frame 42 constituting the left and right frames of the seating portion 41, a damper 10 as a front-rear link rotatably connected to the side frame 42, and a support portion (floor panel) 3. A connecting portion 54 that is provided via a rail 52 and a slide rail 53 and rotatably connects the lower end portion of the damper 10, and an operating portion 55 that adjusts the height of the seating portion 41 by rotating the damper 10. I have.

The fixed rail 52 is fixed to the support portion (floor panel) 3, the fixed rail 52 is provided with the slide rail 53 so as to be movable back and forth, and the slide rail 53 is provided with a lever for adjusting the position of the slide rail 53. 56 is provided.

The operation unit 55 is formed with an operation knob 57 rotatably provided on the side frame 42, a pinion gear 58 provided on the shaft of the operation knob 57, and a sector gear 61 that meshes with the pinion gear 58, and the side frame 42. It is provided with a rotating plate 62 that is rotatably provided on the surface.

The upper end of the damper 10 as a rear link is fastened to the rotating plate 62 by a fastening member 63.

Therefore, the damper 10 as the rear link rotates the operation knob 57 that rotates integrally with the rotation plate 62, so that the rotation plate 62 rotates via the pinion gear 58 and the sector gear 61. The height of the seating portion 41 is adjusted by raising or falling down the damper 10 as the rear link.

According to the above configuration, since the link portion of the link mechanism 51 including the side frame 42, the damper 10 as the front and rear links and the connecting portion 54 is the damper 10, the link mechanism 51 for adjusting the height of the seating portion 41 The impact transmitted from the support portion (floor panel) 3 to the seat portion 6 can be absorbed by the damper 10.

In the second embodiment, the damper 10 as a link is connected to both the front and rear of the side frame 42, but the present invention is not limited to this, and the front side is a link having only a support function other than the damper 10, and only the rear side is connected to the damper 10. On the contrary, the damper 10 may be provided only on the front side, and the link may be provided on the rear side having only a support function other than the damper 10. The specific configuration of the damper 10 will be described later.

(Third Embodiment)
Next, a third embodiment of the present invention will be described. As shown in FIG. 3, the vehicle 1 is a vehicle such as an automobile. Further, the support portion 3 is a floor panel on which the seat portion 6 is installed. The seat portion 6 moves the side frame 42 constituting the left and right frames of the seating portion 41, the base frame 43 supporting the side frame, the slide rail 53 supporting the base frame 43, and the slide rail 53 back and forth. A fixed frame 52 that supports the slide rail 52 and a lever 56 for adjusting the position of the slide rail 53 are provided.

Further, a connecting portion 54 is provided on the support portion (floor panel) 3, the lower end portion of the damper 10 is supported by the connecting portion 54, and the fixed rail 52 is supported by the upper end portion of the damper 10 via the connecting portion 64. There is.

According to the above configuration, since the damper 10 is provided between the side frame 42 constituting the seating portion 41 and the support portion (floor panel) 3 instead of the legs, the support portion (floor panel) 3 to the seat portion The impact transmitted to 6 can be absorbed by the damper 10. Further, since the damper 10 is only provided in place of the leg portion that supports the seating portion 41, the configuration can be simplified.

In the third embodiment, dampers 10 are provided in place of the legs on both the front and rear sides of the side frame 42, but the present invention is not limited to this, and the front side is a leg portion having only a support function other than the damper 10, and only the rear side. The damper 10 may be used, or conversely, only the front side may be the damper 10, and the rear side may be a leg portion that is not the damper 10 but has only a supporting function. The specific configuration of the damper 10 will be described later.

(Fourth Embodiment)
Next, a fourth embodiment of the present invention will be described. As shown in FIG. 4, the vehicle 1 is a vehicle such as an automobile. Further, the support portion 3 is a floor panel on which the seat portion 6 is installed. The seat portion 6 includes a side frame 42 constituting the left and right frames of the seating portion 41, a rotating link 65 that supports the side frame 42 and adjusts the height of the seating portion 41, and a lower portion of the rotating link 65. A slide rail 53 that rotatably supports the slide rail 53, a fixed rail 52 that is fixed to the support portion (floor panel) 3 and supports the slide rail 53 so as to be movable back and forth, and a lever 56 for adjusting the position of the slide rail 53. To be equipped with.

Further, the fixed rail 52 is fixed to the support portion (floor panel) 3, the fixed rail 52 is provided with a connecting portion 66 for supporting one end of the damper 10, and the other end of the damper 10 is supported by the slide rail 53. ing.

According to the above configuration, since the damper 10 is provided between the fixed rail 52 fixed to the support portion (floor panel) 3 and the slide rail 53 provided on the fixed rail 52 so as to be movable back and forth, the slide rail The damper 10 can absorb the impact in the front-rear direction applied to the seating portion 41 that moves integrally with the 53.

In the embodiment, one end of the damper 10 is supported while being connected to the connecting portion 66 provided on the fixed rail, and the other end of the damper 10 is supported while being connected to the slide rail 53, but the present invention is not limited to this. , One end of the damper 10 is supported in a state of being connected to the connecting portion 66, the other end of the damper 10 is separated from the end portion of the slide rail 53, and when the slide rail 53 moves due to an impact, the damper 10 The slide rail 53 may be brought into contact with the other end to absorb the impact on the seating portion 41. When the other end of the damper 10 is not connected to the end of the slide rail 53, the damper 10 may be arranged both in the front and rear of the slide rail 53 or in either the front or the back. The specific configuration of the damper 10 will be described later.

The configuration of the damper 10 common to the first to fourth embodiments described above will be described. For convenience, the damper 10 will be described as being attached to the first embodiment, but the configuration of the damper 10 is the same for the second to fourth embodiments. As shown in FIGS. 1 and 5, the damper 10 includes a sliding member 11 extending linearly and a storage portion 20 for accommodating the sliding member 11, and the storage portion 20 is provided with the sliding member 11. A friction generating means 30 for generating a frictional force is provided between the two.

The sliding member 11 is a square cylindrical piston rod, and a first mounting portion 12 to be mounted on the first support portion 4 is provided at an end portion. The first mounting portion 12 is a plate-shaped member that protrudes from the end portion of the sliding member 11 in the axial direction of the sliding member 11, and a first through hole 13 is formed in the central portion thereof. The shaft provided in the first support portion 4 is passed through the first through hole 13, so that the first mounting portion 12 is supported by the first support portion 4.

The storage portion 20 is a bottomed cylindrical cylinder, and the bottom portion 21 is provided with a second mounting portion 22 to be mounted on the second support portion 5. The second mounting portion 22 is a plate-shaped member protruding from the bottom portion 21 in the axial direction of the storage portion 20, and a second through hole 23 is formed in the central portion thereof. The shaft provided in the second support portion 5 is passed through the second through hole 23, so that the second mounting portion 22 is supported by the second support portion 5.

As shown in FIGS. 7 and 8, the friction generating means 30 is provided at the end of the storage portion 20 on the insertion side of the sliding member 11, and eight pedestals projecting radially outward from the surface of the storage portion 20. The unit 31 is provided. By providing the friction generating means 30 at the end of the accommodating portion 20 on the insertion side of the sliding member 11, the stroke for generating friction can be maximized with the limited stroke of the sliding member 11. Further, a through hole 35 penetrating from the outer end surface 34 to the inner peripheral surface is formed in the pedestal portion 31 protruding outward in the tilt direction from the surface of the storage portion 20, and a contact member 32 is provided in the through hole 35 to provide the outer end surface. Since the urging means 33 is provided on the 34 side, the configuration can be simplified.

Next, the state of the sliding member 11 of the damper 10 will be described.
FIG. 6A shows a state in which the sliding member 11 is stored in the storage portion 20, the end portion of the sliding member 11 and the end portion of the storage portion 20 are flush with each other, and the damper 10 is in the most contracted state as a whole. Is. In FIG. 6B, the sliding member 11 protrudes most from the storage portion 20, and the damper 10 is in the most extended state as a whole.

Next, the configuration of the damper 10 will be described in detail.
As shown in FIGS. 5, 7 and 9, the sliding member 11 has a cylindrical shape, and a lid portion 14 is provided at an end portion. Inside the sliding member 11, a first inner cylinder 15 extends from the lid portion 14 to the vicinity of the end portion on the insertion side of the sliding member 11 along the axis of the sliding member 11.

The storage portion 20 has a cylindrical shape and is provided with a bottom portion 21 at an end portion. Inside the storage portion 20, a second inner cylinder 24 extends from the bottom portion 21 to the vicinity of the opening end portion of the storage portion 20 along the axis of the storage portion 20. The second inner cylinder 24 slidably supports the inner peripheral surface 16 of the sliding member 11. The first inner cylinder 15 is slidably inserted inside the second inner cylinder 24.

A guide portion 18 for guiding the second inner cylinder 24 is provided on the inner peripheral surface 16 of the tip portion of the sliding member 11. A guide portion 28 for guiding the first inner cylinder 15 is provided on the inner peripheral surface 27 of the tip end portion of the second inner cylinder 24.

Since the sliding member 11 that receives the urging force of the urging means 33 is slidably supported by the second inner cylinder 24 from the inside, the sliding member 11 does not escape inward and receives a large urging force. Can be done.

A spring seat 25 is provided on the inner bottom portion 21 of the second inner cylinder 24 arranged inside the storage portion 20. The spring seat 25 is provided with a second elastic member 26 that urges the sliding member 11 in the extension direction by abutting on the first inner cylinder 15. With this configuration, the sliding member 11 is also urged by the second elastic member 26, so that it is possible to cope with a larger impact force.

In the embodiment, the second inner cylinder 24 is formed so as to extend from the bottom portion 21 to the vicinity of the opening end portion of the storage portion 20, but the second inner cylinder 24 is not limited to this, and the second inner cylinder 24 is the storage portion. It suffices that it extends along the axis of the portion 20 and is located at least inside the storage portion 20 in which the friction generating means 30 is arranged and slidably supports the inner peripheral surface 16 of the sliding member 11. Further, the bottom portion 21 is provided at the end of the storage portion 20, but the present invention is not limited to this, and the bottom portion 21 may be provided in the middle of the storage portion 20 in the longitudinal direction as long as the second inner cylinder 24 can be supported. Further, in the embodiment, the sliding member 11 has a square cylinder shape, but the present invention is not limited to this, and a solid prism may be used. In this case, the second inner cylinder 24 is removed from the inside of the storage portion 20. The sliding member 11 can be stored in the storage portion 20 and the structure can be simplified.

Next, the friction generating means 30 will be described.
As shown in FIGS. 7 to 9, the friction generating means 30 is arranged with respect to each of a plurality of planes forming the square cylindrical outer surface 17 of the sliding member 11.

The friction generating means 30 is provided on the outer surface 17 of the sliding member 11, the plurality of contact members 32 that abut on the outer surface 17, and the pedestal portion 31 that protrudes from the storage portion 20, and the friction generating means 30 is provided on the pedestal portion 31. Each of them is provided with a plurality of urging means 33 for pressing each of the plurality of contact members 32 against the sliding member 11 by applying an urging force toward the axis of the sliding member 11.

Biasing means 33及beauty abutment member 32, with the longitudinal direction of the slide member 11, a plurality respectively provided, are arranged in the same position. With such a configuration, the urging force of the urging means 33 can be adjusted at the same position in the longitudinal direction of the sliding member 11 without considering the difference in the action of the urging force in the longitudinal direction of the sliding member 11. It can be easily done only by. Further, since the friction generating means 30 is arranged with respect to each of the plurality of planes forming the prismatic or prismatic outer surface 17, the contact member 32 of the friction generating means 30 is applied to the outer surface 17. It is possible to easily secure the contact area.

In the embodiment, each of the plurality of urging means 33 and the plurality of contact members 32 is arranged at the same position in the longitudinal direction of the sliding member 11, but the present invention is not limited to this, and the plurality of urging means 33 And each of the plurality of contact members 32 may be arranged so as to be offset in the longitudinal direction of the sliding direction 11. In this case, the frictional force is adjusted in consideration of the difference in the action of the urging force due to the difference in the position in the longitudinal direction. Is possible.

In the cross section of the sliding member 11, the inner product of the vector of the urging force acting on each of the plurality of contact members 32 from each of at least one pair of urging means 33 among the plurality of urging means 33 becomes 0 or negative. As described above, the plurality of contact members 32 and the plurality of urging means 33 are arranged. Specifically, each of the plurality of urging means 33 and the plurality of contact members 32 is arranged so as to have rotational symmetry around the axis of the sliding member 11 in the cross section of the sliding member 11. ..

As a specific example, the three urging means 33 shown in FIG. 8 are shown as urging means 33a, 33b, 33c for convenience, and the urging forces acting on the three contact members 32 from each of the urging means 33a, 33b, 33c. Are described as vectors a, b, and c, respectively.

Explaining the vector a and the vector b acting on each of the two contact members 32 from each of the pair of urging means 33a and the urging means 33b, the angle formed by the vector a and the vector b is 90 °, and the vector a The inner product of and the vector b is indicated by | vector a | · | vector b | cos90 °, and the value of the inner product is 0.

Explaining the vector a and the vector c acting on each of the two contact members 32 from each of the pair of urging means 33a and the urging means 33c, the angle formed by the vector a and the vector c is 180 °, and the vector a The inner product of and the vector c is indicated by | vector a | · | vector c | cos 180 °, and the value of the inner product is negative.

In this way, the angle formed by the vector of the urging force acting on each of the plurality of contact members 32 from each of the at least the pair of urging means 33 may be 90 ° or 180 °, and the position where the inner product of the vectors becomes 0 or negative. It suffices that the urging member 33 and the abutting member 32 are respectively arranged in the.

Further, the friction generating means 30 penetrates from the plurality of pedestals 31 and the outer end surfaces 34 of the plurality of pedestals 31 to the inner peripheral surface, and the abutting member is slidably provided and attached to the outer end surface 34 side. It is provided with a through hole 35 in which the force means 33 is provided.

Next, the urging means 33 will be described.
The urging means 33 is housed in the through hole 35 between the female threaded portion 36 provided in the through hole 35, the male threaded portion 37 screwed into the female threaded portion 36, and the male threaded portion 37 and the abutting member 32. The first elastic member 38 has a large repulsive force as it is compressed.

According to this configuration, the male screw portion 37 is screwed into the female screw portion 36 provided in the through hole 35, the first elastic member 38 is compressed by the male screw portion 37, and the contact member 32 is urged. Adjustment can be done easily.

The first elastic member 38 is preferably a compression spring, but is not limited to this, and other general members such as rubber and leaf springs as long as they have a large repulsive force due to compression. It doesn't matter.

Next, the operation of the damper 10 described above will be described.
FIG. 10A shows a state in which the damper 10 is extended, and an impact force on the damper 10 is applied to a straight line L connecting the first through hole 13 of the first mounting portion 12 and the second through hole 23 of the second mounting portion 22. As shown by the arrow (1), the input is tilted at the tilt angle θ. As shown in FIG. 10B, the damper 10 obtains a predetermined frictional force to absorb the impact force, the sliding member 11 is housed in the storage portion 20, and the damper 10 contracts.

As shown in FIG. 11A, in the cross section of the friction generating means 30 before adjustment, when the screwing amount of the male screw portion 36 of the urging means 33 at the upper part of the figure and the urging means 33 at the lower part of the figure is the same, the screwing amount of the male threaded portion 36 is the same. The normal force of the arrow (2) received by the abutting member 32 becomes larger than the normal force of the arrow (3) received by the abutting member 32 at the bottom of the drawing, and the friction generating means 30 cannot obtain a predetermined frictional force. ..

Therefore, the friction generating means 30 is adjusted. The male screw portion 37 of the urging member 32 in the lower part of the drawing is screwed in as shown by the arrow (4), and as shown in FIG. A predetermined frictional force is obtained by increasing the frictional force as in 5) and adjusting the frictional force of the entire friction generating means 30.

When an impact force is input to the damper 10, the sliding member 11 is housed in the accommodating portion 20, and the friction generating means 30 generates a frictional force with the sliding member 11. By pressing each of the plurality of contact members 32 that come into contact with the outer surface 17 of the sliding member 11 against the sliding member 11 by the plurality of urging means 33 provided in the storage portion 20, an urging force is applied. Friction force can be generated between the contact member 32 and the sliding member 11 from a plurality of directions.

Further, the plurality of abutting members 32 and the plurality of urging means 33 have an urging force acting on each of the plurality of abutting members 32 from each of at least the pair of urging means 33 in the cross section of the sliding member 11. Since the inner product of the vectors is arranged so as to be 0 or negative, the urging force can be applied not only in one direction but also in any direction.

Therefore, when the impact force on the vehicle 1 is input to the damper 10, even if the impact force is tilted in any direction with respect to the straight line L connecting both ends of the damper 10, the friction is applied. In the cross section of the moving member 11, the frictional force is increased by increasing the urging force of the urging means 33 at the position where the input escapes and the frictional force becomes smaller, and the friction generating means 30 as a whole becomes a predetermined frictional force. be able to. As a result, the frictional force can be adjusted to a predetermined value regardless of the mounting location of the damper 10.

Further, since the urging means 33 is arranged so as to have rotational symmetry around the axis, the position where the urging force is desired to be increased or the position where the urging force is desired to be increased regardless of the direction in which the impact force input is tilted. The urging means 33 is arranged at a position close to the above, and the urging force of the urging means 33 can be easily adjusted.

Next, another aspect of the damper 10 of FIG. 8 will be described.
As shown in FIG. 12, the outer shape of the sliding member 11 is a regular octagon, and in the cross section of the sliding member 11, two from each of the pair of urging means 33 among the outer surfaces 17 of the sliding member 11. Two urging means 33 are arranged at positions where the angle formed by the vector of the urging force acting on each of the abutting members 32 is 180 °, and two more urging means 33 are adjacent to the two urging means 33. Means 33 are arranged.

As shown in FIG. 13, the outer shape of the sliding member 11 is circular, and in the cross section of the sliding member 11, three urging members 11 are arranged rotationally symmetrically with the sliding member 11 of the contact member 32. The contact surface is formed on an arc.

In the embodiment shown in FIG. 8, each of the plurality of urging means 33 and the plurality of contact members 32 is arranged so as to have rotational symmetry around the axis of the sliding member 11, but the present invention is limited to this. Not so that the inner product of the vectors of the urging forces acting on each of the plurality of abutting members 32 from each of at least one pair of urging means 33 among the plurality of urging means 33 becomes 0 or negative. If the tangent member 32 and the plurality of urging means 33 are arranged, they may be arranged non-uniformly around the axis of the sliding member 11 without having rotational symmetry. Further, the outer shape of the sliding member 11 may be circular, and the number of urging means 33 may be three, four, or the like.

(Another aspect)
Next, another aspect of the damper 10 according to the present invention will be described. Regarding the same configuration as the damper 10 described above, the description thereof will be omitted and the reference numerals will be used.
The damper 10 according to the second embodiment of the present invention includes a sliding member 11 extending linearly and a storage portion 20 for accommodating the sliding member 11, and is between the sliding member 11 and the storage portion 20. Is provided with a friction generating means 30 for generating a frictional force.

The friction generating means 30 includes an inner peripheral surface 29 of the accommodating portion 11, a plurality of contact members that abut on the inner peripheral surface 29, and an inner peripheral surface 29 on each of the plurality of contact members provided on the sliding member 11. It is provided with an urging means for pressing each of the plurality of contact members against the inner peripheral surface 29 by applying an urging force toward the inner peripheral surface 29. In the cross section of the sliding member 11, the inner product of the vector of the urging force acting on each of the plurality of abutting members from each of at least one pair of urging means among the plurality of urging means becomes 0 or negative. A plurality of contact members and a plurality of urging means are arranged.

According to such a configuration, when an impact force is input to the damper 10, the sliding member 11 is housed in the accommodating portion 20, and a frictional force is generated between the sliding member 11 and the sliding member 11 by the friction generating means. The friction generating means presses each of the plurality of contact members that come into contact with the inner peripheral surface 29 of the storage portion 20 against the inner peripheral surface of the storage portion 20 by a plurality of urging means provided on the sliding member 11. By applying a force, a frictional force can be generated between the contact member and the inner peripheral surface 29 from a plurality of directions.

Further, the plurality of abutting members and the plurality of urging means are the inner product of the vectors of the urging forces acting on each of the plurality of abutting members from at least each of the pair of urging means in the cross section of the sliding member 11. Since is arranged so that is 0 or negative, the urging force can be applied not only in one direction but also in any direction.

Therefore, when the impact force on the vehicle 1 is input to the damper 10, the sliding member may be input in which direction the impact force is tilted with respect to the straight line connecting both ends of the damper 10. At a position where the frictional force is small if it is left as it is in the cross section of 11, the frictional force can be increased by increasing the urging force of the urging means, and the friction generating means as a whole can have a predetermined frictional force. .. As a result, the frictional force can be adjusted to a predetermined value regardless of the mounting location of the damper 10.

In the embodiment shown in FIG. 8, the sliding member 11 has a regular octagonal cross section, but is not limited to this, and may be a triangle, a quadrangle, or the like, and slides with the contact surface of the contact member 32 as a flat surface. Any polygon may be used as long as the contact member is brought into contact with each of the planes forming the outer surface 17 of the member 11. Further, the sliding member 11 may be a cylinder, and in this case, the contact surface of the contact member 32 may be shaped along the surface of the cylinder.

In the embodiment, the description is mainly limited to a state in which the stroke in the extension direction of the damper 10 is maximized in order to make it easier to explain the case where the damper 10 is compressed when an impact is received. The damper 10 may be pulled, and in consideration of this case, the damper 10 may be attached in a state where the stroke in the extension direction is compressed to some extent.

In the embodiment, the vehicle 1 is a vehicle 1 or an automobile used in an amusement park attraction or the like, but the vehicle 1 is not limited to this, and the vehicle 1 absorbs an impact such as a train, a ship, a special vehicle, an airplane, or the like. Another vehicle 1 may be used as long as it is necessary.

1 ... Vehicle 2 ... Independent floor panel 3 ... Support (floor panel)
4 ... 1st connection 5 ... 2nd connection 6 ... Seat 10 ... Damper 11 ... Sliding member (piston rod)
16 ... Inner peripheral surface 17 ... Outer side surface 20 ... Storage unit (cylinder)
24 ... Inner cylinder 26 ... Second elastic member 30 ... Friction generating means 31 ... Pedestal part 32 ... Contact members 33, 33a, 33b, 33c ... Biasing means 34 ... Outer end surface 35 ... Through hole 36 ... Female screw part 37 ... Male screw Part 38 ... First elastic member 41 ... Seating part 42 ... Side frame 51 ... Link mechanism 52 ... Fixed rail 53 ... Slide rail 55 ... Operation part

Claims (13)

A seat portion provided on the vehicle so that the occupant can be seated, a support portion forming a structural portion of the vehicle separate from the seat portion, and a support portion provided between the support portion and the seat portion. Equipped with a damper
The damper includes a sliding member extending linearly and a storage portion for accommodating the sliding member, and the storage portion is provided with a friction generating means for generating a frictional force between the sliding member and the sliding member.
The friction generating means is provided on the outer surface of the sliding member, a plurality of contact members that abut on the outer surface, and the plurality of contact members provided in the storage portion on the axis of the sliding member. It is provided with a plurality of urging means for pressing each of the plurality of contact members against the sliding member by applying an urging force toward the sliding member.
A plurality of the urging means and the abutting member are provided in the longitudinal direction of the sliding member and are arranged at the same position.
In the cross section of the sliding member, the inner product of the vector of the urging force acting on each of the plurality of abutting members from each of at least one pair of urging means among the plurality of urging means becomes 0 or negative. As described above, the shock absorbing mechanism for a vehicle is characterized in that the plurality of contact members and the plurality of urging means are arranged. The vehicle shock absorbing mechanism according to claim 1.
The vehicle comprises an independent floor panel in which the seat portion is installed away from the support portion.
One end of the damper is connected to the support portion of the vehicle.
A vehicle shock absorbing mechanism characterized in that the independent floor panel is connected to the other end of the damper. The vehicle shock absorbing mechanism according to claim 1.
The support portion is a floor panel on which the seat portion is installed.
The seat portion includes a link mechanism capable of adjusting the height of the seat portion on which the occupant sits with respect to the floor panel.
The link mechanism rotates a side frame constituting the left and right frames of the seating portion, the damper as a link rotatably connected to the side frame, and a lower end portion of the damper provided on the floor panel. A shock absorbing mechanism for a vehicle, characterized in that it includes a connecting portion that is movably connected and an operating portion that adjusts the height by rotating the damper. The vehicle shock absorbing mechanism according to claim 1.
The support portion is a floor panel on which the seat portion is installed.
The seat portion includes side frames that form the left and right frames of the seat portion.
The lower end of the damper is supported by the floor panel.
A vehicle shock absorbing mechanism characterized in that the side frame is supported on the upper end of the damper. The vehicle shock absorbing mechanism according to claim 1.
The support portion is a floor panel on which the seat portion is installed.
The seat portion includes side frames constituting the left and right frames of the seating portion, slide rails that support the side frames, and fixed rails that are fixed to the floor panel and support the slide rails so as to be movable back and forth.
One end of the damper is supported by the fixed rail or the floor panel.
A shock absorbing mechanism for a vehicle, wherein the slide rail is supported or the slide rail is moved and abuts on the other end of the damper. The vehicle shock absorbing mechanism according to any one of claims 1 to 5.
Each of the plurality of urging means and the plurality of contact members is arranged so as to have rotational symmetry around the axis in the cross section of the sliding member. Absorption mechanism. The vehicle shock absorbing mechanism according to any one of claims 1 to 6.
The sliding member has a cylindrical shape and has a cylindrical shape.
Inside the storage portion, it extends along the axis of the storage portion and is located at least inside the storage portion where the friction generating means is arranged and slidably supports the inner peripheral surface of the sliding member. A shock absorbing mechanism for vehicles characterized by having an inner cylinder. The vehicle shock absorbing mechanism according to any one of claims 1 to 7.
The storage portion is a cylindrical or bottomed cylindrical cylinder.
The sliding member is a square cylindrical piston rod.
The friction generating means is a shock absorbing mechanism for a vehicle, characterized in that the friction generating means is arranged with respect to each of a plurality of planes forming the outer surface of the square cylinder. The vehicle shock absorbing mechanism according to any one of claims 1 to 6.
The storage portion is a cylindrical or bottomed cylindrical cylinder.
The sliding member is a prismatic piston rod.
The friction generating means is a shock absorbing mechanism for a vehicle, characterized in that the friction generating means is arranged with respect to each of a plurality of planes constituting the outer surface of the prism. The vehicle shock absorbing mechanism according to any one of claims 1 to 9.
The contact member in the friction generating means is provided at the end of the storage portion on the insertion side of the sliding member.
A pedestal portion that protrudes radially outward from the surface of the storage portion,
It is characterized by having a through hole that penetrates from the outer end surface of the pedestal portion to the inner peripheral surface, the contact member is slidably provided, and the urging means is provided on the outer end surface side. Shock absorption mechanism for vehicles. The vehicle shock absorbing mechanism according to claim 10.
The urging means is housed and compressed in the through hole between the female threaded portion provided in the through hole, the male threaded portion screwed into the female threaded portion, and the male threaded portion and the contact member. A shock absorbing mechanism for a vehicle, which is a first elastic member whose repulsive force is increased by being used. The vehicle shock absorbing mechanism according to claim 1 to 11.
A spring seat is provided inside the storage portion.
A vehicle shock absorbing mechanism characterized in that the spring seat is provided with a second elastic member that urges the sliding member in the extension direction. A seat portion provided on the vehicle so that the occupant can be seated, a support portion forming a structural portion of the vehicle separate from the seat portion, and a support portion provided between the support portion and the seat portion. Equipped with a damper
The damper includes a sliding member extending linearly and a storage portion for accommodating the sliding member, and the sliding member is provided with a friction generating means for generating a frictional force between the sliding member and the storage portion.
The friction generating means is provided on the inner peripheral surface of the accommodating portion, a plurality of contact members that abut on the inner peripheral surface, and the plurality of contact members provided on the sliding member on the inner peripheral surface. It is provided with an urging means for pressing each of the plurality of contact members against the inner peripheral surface by applying an urging force toward the inner peripheral surface.
A plurality of the urging means and the abutting member are provided in the longitudinal direction of the sliding member and are arranged at the same position.
In the cross section of the sliding member, the inner product of the vector of the urging force acting on each of the plurality of abutting members from each of at least one pair of urging means among the plurality of urging means becomes 0 or negative. As described above, the shock absorbing mechanism for a vehicle is characterized in that the plurality of contact members and the plurality of urging means are arranged.

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