WO2002004236A1 - Mecanisme de suspension - Google Patents

Mecanisme de suspension Download PDF

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Publication number
WO2002004236A1
WO2002004236A1 PCT/JP2000/004618 JP0004618W WO0204236A1 WO 2002004236 A1 WO2002004236 A1 WO 2002004236A1 JP 0004618 W JP0004618 W JP 0004618W WO 0204236 A1 WO0204236 A1 WO 0204236A1
Authority
WO
WIPO (PCT)
Prior art keywords
wheel
elastic
suspension mechanism
elastic body
upright member
Prior art date
Application number
PCT/JP2000/004618
Other languages
English (en)
Japanese (ja)
Inventor
Koji Yoshioka
Original Assignee
Koji Yoshioka
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Koji Yoshioka filed Critical Koji Yoshioka
Priority to PCT/JP2000/004618 priority Critical patent/WO2002004236A1/fr
Priority to AU2000258525A priority patent/AU2000258525A1/en
Publication of WO2002004236A1 publication Critical patent/WO2002004236A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B33/00—Castors in general; Anti-clogging castors
    • B60B33/0002—Castors in general; Anti-clogging castors assembling to the object, e.g. furniture
    • B60B33/0005—Castors in general; Anti-clogging castors assembling to the object, e.g. furniture characterised by mounting method
    • B60B33/0007—Castors in general; Anti-clogging castors assembling to the object, e.g. furniture characterised by mounting method by screwing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B33/00—Castors in general; Anti-clogging castors
    • B60B33/0002—Castors in general; Anti-clogging castors assembling to the object, e.g. furniture
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B33/00—Castors in general; Anti-clogging castors
    • B60B33/0002—Castors in general; Anti-clogging castors assembling to the object, e.g. furniture
    • B60B33/0015—Castors in general; Anti-clogging castors assembling to the object, e.g. furniture characterised by adaptations made to castor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B33/00—Castors in general; Anti-clogging castors
    • B60B33/0002—Castors in general; Anti-clogging castors assembling to the object, e.g. furniture
    • B60B33/0015—Castors in general; Anti-clogging castors assembling to the object, e.g. furniture characterised by adaptations made to castor
    • B60B33/0018—Castors in general; Anti-clogging castors assembling to the object, e.g. furniture characterised by adaptations made to castor in the form of a flat mounting plate
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B33/00—Castors in general; Anti-clogging castors
    • B60B33/0002—Castors in general; Anti-clogging castors assembling to the object, e.g. furniture
    • B60B33/0015—Castors in general; Anti-clogging castors assembling to the object, e.g. furniture characterised by adaptations made to castor
    • B60B33/0021—Castors in general; Anti-clogging castors assembling to the object, e.g. furniture characterised by adaptations made to castor in the form of a mounting pin
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B33/00—Castors in general; Anti-clogging castors
    • B60B33/0028—Construction of wheels; methods of assembling on axle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B33/00—Castors in general; Anti-clogging castors
    • B60B33/0036—Castors in general; Anti-clogging castors characterised by type of wheels
    • B60B33/0039—Single wheels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B33/00—Castors in general; Anti-clogging castors
    • B60B33/0036—Castors in general; Anti-clogging castors characterised by type of wheels
    • B60B33/0042—Double or twin wheels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B33/00—Castors in general; Anti-clogging castors
    • B60B33/0047—Castors in general; Anti-clogging castors characterised by details of the rolling axle
    • B60B33/0049—Castors in general; Anti-clogging castors characterised by details of the rolling axle the rolling axle being horizontal
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B33/00—Castors in general; Anti-clogging castors
    • B60B33/0047—Castors in general; Anti-clogging castors characterised by details of the rolling axle
    • B60B33/0057—Castors in general; Anti-clogging castors characterised by details of the rolling axle the rolling axle being offset from swivel axis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B33/00—Castors in general; Anti-clogging castors
    • B60B33/006—Castors in general; Anti-clogging castors characterised by details of the swivel mechanism
    • B60B33/0065—Castors in general; Anti-clogging castors characterised by details of the swivel mechanism characterised by details of the swivel axis
    • B60B33/0068—Castors in general; Anti-clogging castors characterised by details of the swivel mechanism characterised by details of the swivel axis the swivel axis being vertical
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B33/00—Castors in general; Anti-clogging castors
    • B60B33/006—Castors in general; Anti-clogging castors characterised by details of the swivel mechanism
    • B60B33/0065—Castors in general; Anti-clogging castors characterised by details of the swivel mechanism characterised by details of the swivel axis
    • B60B33/0073—Castors in general; Anti-clogging castors characterised by details of the swivel mechanism characterised by details of the swivel axis the swivel axis being symmetrical to wheel or wheels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
    • B62B5/00—Accessories or details specially adapted for hand carts
    • B62B5/02—Accessories or details specially adapted for hand carts providing for travelling up or down a flight of stairs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
    • B62B2301/00—Wheel arrangements; Steering; Stability; Wheel suspension
    • B62B2301/20—Resilient wheel suspension using springs

Definitions

  • the present invention relates to a suspension mechanism mainly applied to a low-speed moving body having small-diameter wheels.
  • the moving object include a wheelchair, a stroller, a stretcher, a traveling sickness, a trolley, a serving car, a shopping car, and a lawn ski.
  • the present invention can also be applied to relatively high-speed moving objects having large-diameter wheels, such as bicycles, automobiles, railway vehicles, and aircraft. Background art
  • the conventional general suspension mechanism is based on the principle that was put into practical use in the United Kingdom about 200 years ago, and as shown in Fig. 14, the vehicle body 11 and the wheels 12 move in the direction of arrow A. As the coil spring 13 contracts in the vertical direction when the vehicle travels over the projection 15 on the road, the wheel 12 escapes upward, and exhibits a vibration-damping and cushioning effect on the vehicle body 11. ing.
  • this mechanism had the following problems (a) and (b).
  • This mechanism is intended to be applied to relatively high-speed moving objects with large-diameter wheels, such as bicycles, automobiles, railway vehicles, and aircraft, and the moving objects with small-diameter wheels described above. It is not intended to be applied to Moreover, when this mechanism is applied to a small-diameter wheel, the stroke becomes insufficient due to a small amount of eccentricity, so that a sufficient anti-vibration / buffer effect cannot be obtained.
  • the present invention has been made in view of the above circumstances, and provides a suspension mechanism that can be applied at low cost to a moving body having small-diameter wheels and that can obtain a sufficient vibration-damping and cushioning effect.
  • the purpose is to do.
  • the present invention provides a suspension mechanism for supporting wheels on a vehicle body, a support member connected to the vehicle body, an upright member rotatably supporting the wheels at a lower end portion, and an elastic body located at an upper end portion of the upright member. And a horizontal support shaft fixed inside the elastic body, wherein one of the horizontal support shaft and the elastic body is fixed to or integral with the support member, and the other is a vertical support shaft.
  • the upright member is fixed to or integral with the upper end portion, and the upright member is adapted to move around the horizontal support axis, and the elastic body supports the upright member in the vertical direction. It is characterized by the fact that it exerts elasticity to give a restoring force to the motion of the upright member.
  • FIG. 1 is a view showing the operation principle of the suspension mechanism of the present invention.
  • the suspension mechanism of the present invention includes a support member 2 connected to a vehicle body 11, a vertical upright member 3 rotatably supporting a wheel 12 at a lower end, and an elastic member located at an upper end of the upright member 3. It comprises a body 4 and a horizontal support shaft 5 fitted and fixed inside the elastic body 4.
  • the horizontal support shaft 5 is fixed to the support member 2 of the vehicle body 11, and the elastic body 4 is fixed to the upper end of the upright member 3.
  • the horizontal support shaft 5 may be fixed to the upper end of the upright member 3, and the elastic body 4 may be fixed to the support member 2.
  • the upright member 3 when traveling on a flat road surface, the upright member 3 is supported by the elastic body 4 in an upright state in the vertical direction. 1 1 does not move up and down. Also, even if the body 11 becomes heavy, the upright member 3 does not shrink, so that the vehicle height does not decrease.
  • the energy stored in the elastic body when climbing over the projection can be used for accelerating the wheel after climbing over the projection, so that the loss of running energy can be greatly reduced.
  • the support member, the upright member, the elastic body, and the horizontal support shaft are the main components, the structure is simple and lightweight, and the maintenance and inspection are easy.
  • the present invention may further employ the following configurations (1) to (6).
  • the elastic body is located vertically above the center of gravity of the wheel. According to this, it is possible to prevent the force in the twisting direction from acting on the elastic body. Therefore, occurrence of shimmy can be prevented.
  • the above configuration (1) may further employ the following configurations (i) and (ii).
  • the upright member supports the axle of one wheel on both sides while straddling the wheel.
  • the elastic body can be positioned vertically above the center of gravity of the wheel.
  • an upright member supports at its lower end a common axle of the two wheels in the center between the two wheels; According to this, the elastic body can be positioned vertically above the center of gravity of the wheel.
  • the support member is rotatable about a vertical axis with respect to the vehicle body. This The wheels can be turned.
  • One of the support member and the upright member has an elastic member and the other has a receiving portion.
  • the elastic member presses the receiving portion to the limit.
  • the swinging motion exceeding the predetermined angle is restricted. According to this, it is possible to prevent the elastic body from being twisted due to excessive twisting.
  • the above configuration (4) may further employ the following configuration (i).
  • the receiving portion also has an elastic member, so that the elastic members come into pressure contact with each other. According to this, it is possible to softly restrict the swing of the wheel.
  • the above configuration (4) or the above configuration (i) may employ the following configuration (ii).
  • the pressing surface of the elastic member has irregularities. According to this, the swing of the wheel can be restricted softly.
  • the upright member supports the axle of one wheel at one end only at its lower end. According to this, a large diameter wheel can be supported.
  • the support member has a wheel stop to maintain the wheels in a stopped state, and includes a wheel stop, a rocker, a swing lever that can swing around a horizontal axis, and a swing lever that rotates with the swing lever.
  • the brake contacts the wheel to make it impossible to rotate, and when it is rotated in the other direction, the brake separates from the wheel and separates the wheel. It is designed to be rotatable. According to this, the vehicle body can be reliably maintained in the stopped state, and thus the safety in the stopped state can be improved.
  • FIG. 1 is a view showing the operation principle of the suspension mechanism of the present invention.
  • FIG. 2 is a longitudinal sectional side view of the suspension mechanism of the first embodiment.
  • FIG. 3 is a sectional view taken along the line II-II of FIG.
  • FIG. 4 is an exploded perspective view of the suspension mechanism of the first embodiment.
  • FIG. 5 is a longitudinal sectional side view showing a swinging state of the suspension mechanism of FIG.
  • FIG. 6 is a longitudinal sectional front view of the suspension mechanism of the second embodiment.
  • FIG. 7 is a wheelchair as an example of a moving body to which the suspension mechanism of Embodiment 3 is applied. It is a side view which shows a child.
  • FIG. 8 is a longitudinal sectional side view of the suspension mechanism of the third embodiment.
  • FIG. 8 is a longitudinal sectional side view of the suspension mechanism of the third embodiment.
  • FIG. 9 is a perspective view of a support member of the suspension mechanism of the third embodiment.
  • FIG. 10 is a partial view taken along the arrow X in FIG.
  • FIG. 11 is a longitudinal sectional front view of the suspension mechanism of the fourth embodiment.
  • FIG. 12 is a perspective view of the suspension mechanism of the fifth embodiment.
  • FIG. 13 is an exploded perspective view of a wheel stopper of the suspension mechanism of the fifth embodiment.
  • FIG. 14 is a diagram showing the operating principle of a conventional suspension mechanism. BEST MODE FOR CARRYING OUT THE INVENTION
  • FIG. 2 is a vertical sectional side view of the suspension mechanism of the present embodiment
  • FIG. 3 is a sectional view taken along the line in FIG. 2
  • FIG. 4 is an exploded perspective view.
  • the suspension mechanism of the present embodiment includes a support member 2 fixed to a vehicle body 11 of a moving body having a small diameter wheel such as a bogie by a port 21 and an upright supporting a wheel 12 at a lower end portion to be rotatable.
  • the elastic member 4 includes a member 3, a cylindrical elastic body 4 fixed to the upper end of the upright member 3, and a horizontal support shaft 5 fitted and fixed in a cylindrical interior 41 of the elastic body 4.
  • the horizontal support shaft 5 is provided integrally with the support member 2.
  • the upright member 3 has a substantially lower half divided into two support pieces 31 and a through hole 32 at the upper end. At the lower ends, the two support pieces 31 support the axle 121 of the wheel 12 on both sides while straddling the wheel 12.
  • the through hole 32 is formed parallel to the axle 121.
  • the elastic body 4 includes a thick main body 42 made of an elastic material such as rubber, for example, and metal outer surface members 43 and inner surface members 44 fixed to both surfaces of the main body 42.
  • the elastic body 4 is pressed into the through hole 32 of the upright member 3. That is, the elastic body 4 is fixed to the upper end of the upright member 3 and cannot rotate around the axis with respect to the upright member 3.
  • the sexual body 4 is located vertically above the center of gravity of the wheel 12 as can be seen from FIG.
  • the horizontal support shaft 5 is provided integrally with the support member 2 and projects horizontally from the support member 2.
  • a groove 51 is formed on the surface of the horizontal support shaft 5.
  • a key 45 is formed integrally with the inner surface member 44 of the elastic body 4.
  • Horizontal support shaft 5 fits into groove 51
  • the elastic body 4 is fitted into the cylindrical inner part 41 so that one part 45 is inserted.
  • the horizontal support shaft 5 cannot rotate around the axis with respect to the elastic body 4 due to the groove 51 and the key 45.
  • the shaft portion 61 of the lid 6 is fitted to the inside 41 of the cylinder of the elastic body 4.
  • a groove 62 is also formed on the surface of the shaft 61.
  • the shaft portion 61 is fitted into the cylindrical interior 41 of the elastic body 4 such that the key 45 is inserted into the groove 62.
  • the shaft 61 cannot be rotated around the axis with respect to the elastic body 4 by the groove 62 and the key 45.
  • a hexagonal port 7 penetrates the horizontal support shaft 5 to reach the shaft portion 61, thereby connecting the two so as to attract each other.
  • the main body 42 of the elastic body 4 includes an annular protrusion 52 formed near the base end of the horizontal support shaft 5, and a shaft portion. 6
  • the ring is compressed in the axial direction by the annular protrusion 63 formed near the base end of the first member.
  • a block-like elastic member 33 is fixed on one side of the upper part of the upright member 3.
  • a plate-shaped receiving portion 22 is provided so as to protrude, and a block-shaped elastic member 23 is fixed to the receiving portion 22.
  • the elastic member 33 comes into pressure contact with the elastic member 23 of the receiving portion 22 when the upright member 3 swings backward (in the direction of arrow B in FIG. 5) around the horizontal support shaft 5.
  • the main body 42 of the elastic body 4 supports the upright member 3 in the vertical direction and exerts an elastic force for applying a restoring force to the rotational motion of the upright member 3.
  • the suspension mechanism having the above configuration exerts a vibration-proofing / buffering effect on the vehicle body 11.
  • the maximum swing angle of the wheel 12 is limited to a predetermined angle ⁇ (for example, 30 degrees) at which the main body 42 does not break due to the elastic members 33 and 23 and the receiving portion 22. are doing.
  • the elastic member 3 3 comes into pressure contact with the elastic member 23 of the receiving portion 2 2, and when the wheel 12 moves up to an angle, the elastic member 3 3 presses against the elastic member 23 to the limit, which limits the swinging of the wheel 12 beyond the angle.
  • the elastic force and size of the elastic members 33 and 23 and the position of the receiving portion 22 are set so that the maximum swing angle of the wheel 12 becomes the angle ⁇ .
  • the wheel 12 When riding over the protrusion 15, the wheel 12 swings backward, so that the body 42 of the bullet 10 is twisted, and energy is stored in the body 42.
  • the energy is used to accelerate wheel 12 as wheel 12 rides over projection 15 and returns to its original state. Therefore, since no energy is accumulated, no damper is required, and the structure is simple, inexpensive, and lightweight. Also, driving energy loss is greatly reduced.
  • the elastic body 4 is located vertically above the center of gravity of the wheel 12, so that even if an impact is applied to the wheel 12, the force for prying the main body 42 is suppressed. Therefore, the occurrence of shimming while the wheels 12 are running is prevented.
  • the key 45 is formed integrally with the inner surface member 44 of the elastic body 4, the key 45 is prevented from being lost.
  • FIG. 6 is a longitudinal sectional front view of the suspension mechanism of the present embodiment.
  • Suspension mechanism of the present embodiment Supports a dual wheel 120 constituted by two wheels 12 mounted on one axle 12 1 in parallel.
  • Other configurations are the same as those of the first embodiment except for the following (a).
  • the support member 2 is configured by joining two divided bodies 251, 252 from both sides, and one of the divided bodies 252 functions as the lid 6 of the first embodiment.
  • the upright member 3 supports the axle 121 at the lower end at the center between the two wheels 12. Therefore, the elastic body 4 is located vertically above the center of gravity of the double wheel 120. '
  • the suspension mechanism supports wheels so as to be able to change directions, and is applied to, for example, a front wheel 51 of a wheelchair shown in FIG. 7 and a front wheel such as a stroller and a stretcher.
  • FIG. 8 is a longitudinal sectional side view of the suspension mechanism of the present embodiment.
  • the suspension mechanism of the present embodiment has the same configuration as that of the first embodiment except for the following configurations (a) to (c), and exhibits the same functions and effects as those of the first embodiment.
  • the support member 2 has a caster arm shape as shown in FIG. 9, and is rotatable around the axis of a vertical rotation shaft 24 rotatably connected to the vehicle body 11.
  • the vertical rotation shaft 24 is provided at a position away from the vertical center line of the wheel 12.
  • the suspension mechanism of the present embodiment is, for example, a case of supporting a relatively large-diameter wheel such as a wheelchair rear wheel 52 shown in FIG. 10 which is a partial view taken along the arrow X in FIG. 7 and FIG. To be applied principally.
  • a relatively large-diameter wheel such as a wheelchair rear wheel 52 shown in FIG. 10 which is a partial view taken along the arrow X in FIG. 7 and FIG.
  • the wheel 12 corresponds to the rear wheel 52
  • the support member 2 corresponds to the mounting portion 54 fixed to the bottom frame 53.
  • FIG. 11 is a longitudinal sectional front view of the suspension mechanism of the present embodiment.
  • the suspension mechanism of the present embodiment has the same configuration as that of the first embodiment except for the following configuration (a), and exhibits the same operation and effects as the first embodiment.
  • FIG. 12 is a perspective view of the suspension mechanism of the present embodiment.
  • the suspension mechanism of the present embodiment has a wheel stopper 8 on the support member 2 for maintaining the wheels 12 in a stopped state, and other configurations are the same as those of the second embodiment.
  • FIG. 13 is an exploded perspective view of the wheel stopper 8.
  • the wheel stopper 8 includes a swing lever 82 that can swing around a horizontal axis 81, and a brake body 83 that moves with the rotation of the swing lever 82.
  • the horizontal shaft 81 extends through the support member 2 in parallel with the axle 121.
  • the swing lever 82 is configured by joining two divided bodies 8 21 from both sides of the support member 2.
  • the braking body 83 is provided on one side of the swing lever 82, and moves up and down between the two guide pieces 84.
  • a long hole 831 in the longitudinal direction is formed in the braking body 83.
  • the braking body 8 3 is horizontal in the slot 8 3 1 It is supported by passing shaft 81. Further, the braking body 83 is always urged upward by the coil spring 83. Note that the braking body 83 may be provided on both sides of the swing lever 82.
  • the rocking lever 82 has a cam-shaped projection 8222 that is in contact with the top 833 of the braking body 83.
  • the cam-shaped projection 8 22 pushes down the brake body 8 3 and presses the brake body 8 3 against the wheel 1 2, whereby the wheel 1
  • the cam-shaped projection 8 22 causes the braking body 8 3
  • the brake body 83 moves upward by the action of the coil spring 832 and separates from the wheel 12 so that the wheel 12 can rotate.
  • the horizontal support shaft 5 is fixed to the support member 2 of the vehicle body 1, and the elastic body 4 is fixed to the upper end of the upright member 3.
  • the shaft 5 may be fixed to the upper end of the upright member 3, and the elastic body 4 may be fixed to the support member 2.
  • the groove 51 is formed on the horizontal support shaft 5 and the key 45 is formed integrally with the elastic body 4. On the contrary, the groove 51 is formed on the elastic body 4.
  • the key 45 may be formed integrally with the horizontal support shaft 5.
  • the suspension mechanism of the present invention can be applied to a moving body having small-diameter wheels at a low cost, and can obtain a sufficient vibration-proof and cushioning effect, and thus has great industrial applicability.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Vehicle Body Suspensions (AREA)

Abstract

L'invention concerne un mécanisme de suspension comportant un élément support (2) relié à un corps (11), un élément vertical (3) supportant, de manière rotative, une roue (12) à l'extrémité inférieure de l'élément vertical (3), un corps cylindrique souple (4) fixé à l'extrémité supérieure de l'élément vertical (3) et un arbre de support horizontal (5) fixé de manière solidaire à l'intérieur cylindrique du corps souple (4). L'arbre de support horizontal (5) est fixé à l'élément support (2), le corps élastique (4) est fixé à l'extrémité supérieure de l'élément vertical (3), ce dernier est déplacé par basculement autour de l'arbre de support horizontal (5) et le corps souple (4) supporte verticalement l'élément vertical (3) et fournit en outre à l'élément une force élastique afin de conférer au mouvement pivotant dudit l'élément (3) une force de rappel.
PCT/JP2000/004618 2000-07-11 2000-07-11 Mecanisme de suspension WO2002004236A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PCT/JP2000/004618 WO2002004236A1 (fr) 2000-07-11 2000-07-11 Mecanisme de suspension
AU2000258525A AU2000258525A1 (en) 2000-07-11 2000-07-11 Suspension mechanism

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2000/004618 WO2002004236A1 (fr) 2000-07-11 2000-07-11 Mecanisme de suspension

Publications (1)

Publication Number Publication Date
WO2002004236A1 true WO2002004236A1 (fr) 2002-01-17

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ID=11736252

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2000/004618 WO2002004236A1 (fr) 2000-07-11 2000-07-11 Mecanisme de suspension

Country Status (2)

Country Link
AU (1) AU2000258525A1 (fr)
WO (1) WO2002004236A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003002004A (ja) * 2001-06-20 2003-01-08 Hammer Caster Kk キャスター
EP3132991A4 (fr) * 2014-04-14 2018-01-03 Fuji Machine Mfg. Co., Ltd. Chariot de transport et déambulateur
GB2626369A (en) * 2023-01-20 2024-07-24 NZP1027 Ltd Adjustable drive wheel mechanism

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5497856A (en) * 1994-08-31 1996-03-12 Colson Caster Corporation Locking caster brake assembly
JPH08132813A (ja) * 1994-11-02 1996-05-28 Nanshin:Kk キャスター制動機構
US5581843A (en) * 1995-08-14 1996-12-10 Purnell; Peter F. Wheel assembly for baby stroller
JPH1086602A (ja) * 1996-09-12 1998-04-07 Honda Motor Co Ltd キャスター装置
JPH11227406A (ja) * 1998-02-18 1999-08-24 Fuji Xerox Co Ltd 双輪キャスター
JPH11278352A (ja) * 1998-03-27 1999-10-12 Sus 21:Kk 自転車前輪制御機構
JP2000135901A (ja) * 1998-10-30 2000-05-16 Kayaba Ind Co Ltd キャスター

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5497856A (en) * 1994-08-31 1996-03-12 Colson Caster Corporation Locking caster brake assembly
JPH08132813A (ja) * 1994-11-02 1996-05-28 Nanshin:Kk キャスター制動機構
US5581843A (en) * 1995-08-14 1996-12-10 Purnell; Peter F. Wheel assembly for baby stroller
JPH1086602A (ja) * 1996-09-12 1998-04-07 Honda Motor Co Ltd キャスター装置
JPH11227406A (ja) * 1998-02-18 1999-08-24 Fuji Xerox Co Ltd 双輪キャスター
JPH11278352A (ja) * 1998-03-27 1999-10-12 Sus 21:Kk 自転車前輪制御機構
JP2000135901A (ja) * 1998-10-30 2000-05-16 Kayaba Ind Co Ltd キャスター

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003002004A (ja) * 2001-06-20 2003-01-08 Hammer Caster Kk キャスター
JP4716070B2 (ja) * 2001-06-20 2011-07-06 ハンマーキャスター株式会社 キャスター
EP3132991A4 (fr) * 2014-04-14 2018-01-03 Fuji Machine Mfg. Co., Ltd. Chariot de transport et déambulateur
GB2626369A (en) * 2023-01-20 2024-07-24 NZP1027 Ltd Adjustable drive wheel mechanism

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