WO2010058773A1 - 車高調整懸架装置 - Google Patents
車高調整懸架装置 Download PDFInfo
- Publication number
- WO2010058773A1 WO2010058773A1 PCT/JP2009/069497 JP2009069497W WO2010058773A1 WO 2010058773 A1 WO2010058773 A1 WO 2010058773A1 JP 2009069497 W JP2009069497 W JP 2009069497W WO 2010058773 A1 WO2010058773 A1 WO 2010058773A1
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- WIPO (PCT)
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- cylinder
- vehicle height
- gear
- suspension device
- power
- Prior art date
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G17/00—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load
- B60G17/02—Spring characteristics, e.g. mechanical springs and mechanical adjusting means
- B60G17/021—Spring characteristics, e.g. mechanical springs and mechanical adjusting means the mechanical spring being a coil spring
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G15/00—Resilient suspensions characterised by arrangement, location or type of combined spring and vibration damper, e.g. telescopic type
- B60G15/02—Resilient suspensions characterised by arrangement, location or type of combined spring and vibration damper, e.g. telescopic type having mechanical spring
- B60G15/06—Resilient suspensions characterised by arrangement, location or type of combined spring and vibration damper, e.g. telescopic type having mechanical spring and fluid damper
- B60G15/062—Resilient suspensions characterised by arrangement, location or type of combined spring and vibration damper, e.g. telescopic type having mechanical spring and fluid damper the spring being arranged around the damper
- B60G15/063—Resilient suspensions characterised by arrangement, location or type of combined spring and vibration damper, e.g. telescopic type having mechanical spring and fluid damper the spring being arranged around the damper characterised by the mounting of the spring on the damper
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
- F16F9/56—Means for adjusting the length of, or for locking, the spring or damper, e.g. at the end of the stroke
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H25/00—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms
- F16H25/18—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms for conveying or interconverting oscillating or reciprocating motions
- F16H25/20—Screw mechanisms
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2202/00—Indexing codes relating to the type of spring, damper or actuator
- B60G2202/30—Spring/Damper and/or actuator Units
- B60G2202/31—Spring/Damper and/or actuator Units with the spring arranged around the damper, e.g. MacPherson strut
- B60G2202/312—The spring being a wound spring
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2202/00—Indexing codes relating to the type of spring, damper or actuator
- B60G2202/40—Type of actuator
- B60G2202/42—Electric actuator
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2202/00—Indexing codes relating to the type of spring, damper or actuator
- B60G2202/40—Type of actuator
- B60G2202/44—Axial actuator, e.g. telescopic
- B60G2202/441—Axial actuator, e.g. telescopic where axial movement is translated to rotation of the connected end part
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2202/00—Indexing codes relating to the type of spring, damper or actuator
- B60G2202/40—Type of actuator
- B60G2202/442—Rotary actuator
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2204/00—Indexing codes related to suspensions per se or to auxiliary parts
- B60G2204/10—Mounting of suspension elements
- B60G2204/12—Mounting of springs or dampers
- B60G2204/124—Mounting of coil springs
- B60G2204/1242—Mounting of coil springs on a damper, e.g. MacPerson strut
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2204/00—Indexing codes related to suspensions per se or to auxiliary parts
- B60G2204/40—Auxiliary suspension parts; Adjustment of suspensions
- B60G2204/419—Gears
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2204/00—Indexing codes related to suspensions per se or to auxiliary parts
- B60G2204/40—Auxiliary suspension parts; Adjustment of suspensions
- B60G2204/419—Gears
- B60G2204/4193—Gears worm gears
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2204/00—Indexing codes related to suspensions per se or to auxiliary parts
- B60G2204/40—Auxiliary suspension parts; Adjustment of suspensions
- B60G2204/423—Rails, tubes, or the like, for guiding the movement of suspension elements
- B60G2204/4232—Sliding mounts
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2206/00—Indexing codes related to the manufacturing of suspensions: constructional features, the materials used, procedures or tools
- B60G2206/01—Constructional features of suspension elements, e.g. arms, dampers, springs
- B60G2206/40—Constructional features of dampers and/or springs
- B60G2206/41—Dampers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2500/00—Indexing codes relating to the regulated action or device
- B60G2500/30—Height or ground clearance
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2600/00—Indexing codes relating to particular elements, systems or processes used on suspension systems or suspension control systems
- B60G2600/18—Automatic control means
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2600/00—Indexing codes relating to particular elements, systems or processes used on suspension systems or suspension control systems
- B60G2600/20—Manual control or setting means
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2800/00—Indexing codes relating to the type of movement or to the condition of the vehicle and to the end result to be achieved by the control action
- B60G2800/90—System Controller type
- B60G2800/91—Suspension Control
- B60G2800/914—Height Control System
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H1/00—Toothed gearings for conveying rotary motion
- F16H1/02—Toothed gearings for conveying rotary motion without gears having orbital motion
- F16H1/04—Toothed gearings for conveying rotary motion without gears having orbital motion involving only two intermeshing members
- F16H1/12—Toothed gearings for conveying rotary motion without gears having orbital motion involving only two intermeshing members with non-parallel axes
- F16H1/16—Toothed gearings for conveying rotary motion without gears having orbital motion involving only two intermeshing members with non-parallel axes comprising worm and worm-wheel
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H25/00—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms
- F16H25/18—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms for conveying or interconverting oscillating or reciprocating motions
- F16H25/20—Screw mechanisms
- F16H2025/2062—Arrangements for driving the actuator
- F16H2025/2084—Perpendicular arrangement of drive motor to screw axis
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H25/00—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms
- F16H25/18—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms for conveying or interconverting oscillating or reciprocating motions
- F16H25/20—Screw mechanisms
- F16H2025/2062—Arrangements for driving the actuator
- F16H2025/209—Arrangements for driving the actuator using worm gears
Definitions
- the present invention relates to a vehicle height adjusting suspension used for adjusting the vehicle height of various vehicles.
- This vehicle height adjusting suspension device is provided with a cylinder 50 connected to an axle (not shown), and is provided in the cylinder 50 so as to be able to advance and retreat.
- a screw portion 52 at the tip portion penetrates the vehicle body X, and a nut N is screwed into the screw portion 52.
- a shock absorber S having a telescopic rod 51 attached and fixed, and a coil spring 55 extrapolated to the telescopic rod 51 in a state where the lower end portion is supported by an annular spring pedestal 56 attached to the cylinder 50.
- the telescopic rod 51 penetrates in the axial direction, is inserted into the cylinder 60 fixed to the vehicle body X, and the fluid pressure chamber 80 of the cylinder 60, and expands and contracts while being in contact with the coil spring 55.
- a plunger 70 is provided so as to be movable in the axial direction with respect to the rod 51.
- the cylinder 60 is in contact with the vehicle body X and has an annular contact portion 61 that is in contact with the outer peripheral surface of the telescopic rod 51, and a cylindrical covering that extends from the periphery of the contact portion 61 and covers the outside of the plunger 70. Part 62.
- An annular groove 61a is formed on the inner peripheral surface of the abutting portion 61, and a packing P for securing a sealing property with respect to the telescopic rod 51 is fitted into the groove 61a.
- the plunger 70 is an annular rod-side sliding portion 71 that slides on the telescopic rod 51, and a cylindrical covering portion 72 that is suspended from the peripheral edge of the rod-side sliding portion 71 and covers the outside of the coil spring 55.
- An annular cylinder side sliding portion 73 projecting from the outer peripheral surface of the covering portion 72 and sliding on the inner peripheral surface of the lower end opening 63 of the cylinder 60, and an outer peripheral surface of the lower end of the cylinder side sliding portion 73
- a flange-like stopper 74 that is formed so as to protrude radially outward and that abuts against the opening end surface of the cylinder 60 and restricts upward movement.
- the rod-side sliding portion 71 of the plunger 70 is formed with an annular groove 71a as well as the contact portion 61 of the cylinder 60, and a packing P is inserted into the groove 71a, so that the sealing performance is improved.
- the plunger 70 is configured to be slidable with respect to the telescopic rod 51 after being secured.
- a similar packing P is also provided on the outer peripheral surface of the cylinder side sliding portion 73, and the plunger 70 can slide on the inner peripheral surface of the cylinder 60 while ensuring sealing performance. It has become.
- a fluid pressure chamber 80 is formed between the inner surface of the cylinder 60 and the outer surface of the plunger 70 to allow fluid to flow in and out.
- the fluid pressure chamber 80 includes an annular upper space 80 a formed between the contact portion 61 of the cylinder 60 and the rod side sliding portion 71 of the plunger 70, a covering portion 72 of the cylinder 60, and a covering portion of the plunger 70. 72 and a cylindrical side space 80b formed between the two.
- the cylinder 60 is provided with an air valve mounting portion for introducing and discharging air into the fluid pressure chamber 80, and a predetermined valve is mounted on the air valve mounting portion.
- a predetermined valve is mounted on the air valve mounting portion.
- an air supply / discharge device for example, a device including an air tank and a compressor connected to the air tank is used, and this is mounted on the vehicle body X and a switch provided in the driver's seat is operated. Thus, air is introduced from the air tank to the vehicle height adjustment unit.
- the air supply is determined by the driver, and is not limited to the case where there is a level difference. In the case of rough roads with unevenness, the air to be supplied in the case of flat roads paved with asphalt.
- the vehicle height can be adjusted by appropriately adjusting the amount of the vehicle.
- another conventional vehicle height adjustment suspension device includes a drive gear provided concentrically with respect to a tip portion of a rod attached to a vehicle body, and is externally inserted with respect to the rod, and is attached to the drive gear.
- a known example includes a cylindrical male screw that meshes and a cylindrical female screw that is screwed to the male screw and suspended on a spring receiving portion provided at an upper end portion of a coil spring.
- the conventional vehicle height adjustment suspension device receives the load of the vehicle body X, the impact from the road surface, the vibration of the vehicle body X, and the like, the shock absorber S (particularly the telescopic rod 51) is distorted when moving forward and backward. There is a problem that a gap is formed between the outer peripheral surface of the telescopic rod 51 and the seal portion (packing P) of the cylinder 60 and the plunger 70, causing air leakage, which hinders the adjustment of the lifting and lowering of the vehicle body X. is there.
- an object of the present invention is to provide a vehicle height adjustment suspension device that can smoothly perform up and down adjustment of a vehicle body without supplying a fluid to a shock absorber.
- a vehicle height adjusting suspension device is provided with a cylinder 1 and a shock that has a telescopic rod 2 that is provided in the cylinder 1 so as to be movable forward and backward, and whose tip is connected to the vehicle body X.
- a vehicle height adjustment suspension apparatus comprising an absorber S and a coil spring 4 extrapolated to an extendable rod 2 with a lower end supported by a spring cradle 3 attached to an upper end of a cylinder 1
- a gear mechanism A that is rotated by the motor, a power converter B that converts the power transmitted from the gear mechanism A into the lifting power of the cylinder 1, and a guide C that guides the lifting and lowering of the cylinder 1.
- An elevating mechanism D is provided.
- the configuration is simplified because it is not necessary to ensure the sealing performance. Further, since the lifting / lowering operation is mechanically performed, a delicate pressure adjustment is not necessary, and the vehicle height adjustment with respect to a desired height can be easily and reliably performed. Further, since the raising / lowering of the cylinder 1 is guided by the guide portion C, the reciprocating movement (elevating operation) in the vertical direction can be smoothly performed.
- the gear mechanism A meshes with the transmission gears 10, 33, and 40 that are rotated by a power source, and the transmission gears 10, 33, and 40. It is also possible to employ a configuration that includes wheel gears 11, 34, and 110 that are extrapolated at positions where a stroke can be secured.
- the power for raising and lowering the cylinder 1 is reliably transmitted by the meshing of the gears, and the supply of fluid can be made unnecessary.
- the convex portion 44 is provided in a direction orthogonal to the one end portion, and the connection portion 41a for connecting the manual operation rod 49 is provided. Further, it is also possible to employ a configuration in which a pressing means 47 is provided to press the convex portion 44 against the support member 481 that rotatably supports the shaft portion 41 so that the convex portion 44 can be separated by pressing of the hand. .
- the convex portion 44 provided at one end of the transmission gear 40 is pressed against the support member 481 by the pressure contact means 47, so that the transmission gear 40 cannot be operated.
- the manual operation rod 49 is connected to the connection portion 41 a provided at one end portion of the transmission gear 40, and the one end portion of the transmission gear 40 is connected to the press-contact direction via the manual operation rod 49. Is pressed in the opposite direction, the convex portion 44 is separated from the support member 481, and the transmission gear 40 is rotated to adjust the vehicle height.
- the internal thread 15 fixed to the inner peripheral surface of the wheel gears 11, 34, 110 and the internal thread 15 formed on the outer peripheral surface of the cylinder 1 are screwed. It is also possible to adopt a configuration including a male screw portion 5 for matching.
- the rotational operation of the gear mechanism A is linearly driven by the threaded engagement between the female screw 15 fixed to the inner peripheral surface of the wheel gear 11, 34, 110 and the male screw portion 5 formed on the outer peripheral surface of the cylinder 1. Since it is converted into motion, the cylinder 1 can be raised and lowered mechanically.
- the guide portion C is attached to the rails 26 and 26 disposed along the axial direction below the power conversion portion B and the lower end portion of the cylinder 1.
- 26 may be configured to include a movable body 6 that is movably provided at 26.
- the moving body 6 attached to the lower end of the cylinder 1 moves along the rails 26, 26, so that the rotational power of the gear mechanism A is transmitted to the cylinder 1 even if the rotational power is transmitted to the cylinder 1.
- the cylinder 1 can be moved up and down without being affected, that is, without rotating. In other words, all the rotational power of the gear mechanism A can be converted into lifting power and can be lifted smoothly.
- the cylinder is mechanically moved up and down by meshing with the gear, the internal thread interlocking with the gear, and the threading of the external thread. It is not necessary to seal against the rod, and the vehicle height can be easily and reliably adjusted to a desired height without supplying fluid. Furthermore, since the spring length of the coil spring does not change depending on the vehicle height, there is an effect that a comfortable drive can always be provided without changing the riding comfort.
- FIG. 3 is a cross-sectional view showing a state in which the cylinder is lowered, which is a vehicle height adjustment suspension apparatus according to the present invention.
- Sectional drawing which shows the state which the cylinder raised.
- FIG. 4 is a plan view of FIG. 3.
- the perspective view of the worm wheel by which the internal thread was fixed to the inner peripheral surface.
- the assembly exploded perspective view of the raising / lowering mechanism 2nd part assembly.
- the disassembled perspective view which showed the state in which the raising / lowering mechanism 1st partial assembly and the raising / lowering mechanism 2nd partial assembly were assembled
- the disassembled perspective view which showed the procedure which assembles
- (A) is a figure which shows the state in which the convex part of a transmission gear is press-contacted to the support member, (b) can be rotated by separating the convex part of a transmission gear from a support member with a manual operation stick
- Sectional drawing which shows the conventional vehicle height adjustment suspension apparatus. Sectional drawing which showed the state which supplied the fluid to the vehicle height adjustment suspension apparatus of FIG. 12, and raised the vehicle body.
- the shock absorber S is configured by providing the telescopic rod 2 so as to be able to advance and retract relative to the cylinder 1.
- the vehicle height adjustment suspension apparatus is comprised by extrapolating to the expansion-contraction rod 2 in the state in which the lower end part of the coil spring 4 was supported by the spring cradle 3 attached to the upper end part of the cylinder 1.
- FIG. Therefore, detailed description of these parts is omitted.
- the main part of the vehicle height adjustment suspension apparatus has a gear mechanism portion A that is rotated by a power source, and a transmission power from the gear mechanism portion A.
- an elevating mechanism D that includes a power conversion unit B that converts the elevating power of the cylinder 1 and a guide unit C that guides the elevating and lowering of the cylinder 1.
- the cylinder 1 is formed with a threaded groove 5a along the axial direction on the outer peripheral surface to constitute a male threaded portion 5.
- a disc-shaped moving body 6 having a diameter larger than the outer diameter of the cylinder 1 is fixed to the end surface of the lower end portion of the cylinder 1.
- Concave portions 6a and 6a are formed along the radially inward direction so as to be able to move with respect to rails 26 and 26 of a guide portion C, which will be described later. 8).
- the gear mechanism A engages with a worm 10 that is rotated by a power source, for example, an electric motor, when the cylinder 1 is moved up and down, and a position at which a lifting stroke can be secured in the cylinder 1, that is,
- a power source for example, an electric motor
- a worm gear 12 having a worm wheel 11 that is externally inserted at substantially the center of the entire length of the cylinder 1 (the length from the tip of the telescopic rod to the moving body 6).
- Shaft portions 12a and 12a are projected from both end portions of the worm 10, and the shaft portions 12a and 12a are rotatably supported by bearings 13 and 13, respectively.
- the power conversion unit B includes a female screw 15 fixed to the inner peripheral surface of the worm wheel 11 and a male screw unit 5 formed on the outer peripheral surface of the cylinder 1 for screwing the female screw 15.
- the female screw 15 includes a cylindrical portion 16 having a screw portion 15 a provided on the inner peripheral surface, and annular shaft portions 17, 17 having a diameter smaller than that of the cylindrical portion 16 are shafts from both ends of the cylindrical portion 16.
- the annular shaft portions 17 and 17 are rotatably supported by bearings 18 and 18.
- the worm 10 is engaged with the worm wheel 11, the shaft portions 12 a and 12 a of the worm 10 are rotatably supported by the bearings 13 and 13, and the female screw 15 is rotatably supported by the bearings 18 and 18. It is accommodated in the case 20 in a supported state.
- the case 20 has a horizontally long rectangular parallelepiped shape and can be disassembled and assembled, and has a lower case main body 20a and an upper case main body 20b.
- Cylinder insertion holes 21 through which the cylinder 1 is inserted from below to above are formed on the lower and upper surfaces of the left side portions of the case bodies 20a and 20b, and two orthogonal center lines of the insertion holes 21 are formed.
- Bolt insertion holes 22 are formed on the extension line.
- fitting holes 23 and 23 into which the bearings 13 and 13 of the worm 10 are fitted are formed in the front and rear side surfaces on the right side of the case main bodies 20a and 20b.
- the guide part C is provided below the power conversion part B and accommodates the cylinder 1 in a fixed state without being rotated by power transmission by the gear mechanism part (worm 10 and worm wheel 11) A.
- a body 25 and a pair of rails 26 and 26 fixed to the inner peripheral surface of the cylindrical body 25 at positions opposed to each other in the axial direction are provided.
- a flange 27 having a quadrangular shape in plan view is formed at one open end of the cylindrical body 25, and at the corners of the flange 27, the bolt insertion holes 22,. .. Are formed at positions corresponding to.
- bearings 13 and 13 are provided on the shaft portions 12 a and 12 a of the worm 10 to assemble the lifting mechanism first partial assembly D ⁇ b> 1, and the female screw 15 fixed to the inner peripheral surface of the worm wheel 11.
- Bearings 18 and 18 are provided on the annular shaft portions 17 and 17, and the lifting mechanism second partial assembly D2 is assembled.
- a pair of rails 26 and 26 are attached along the axial direction at positions opposed to the inner peripheral surface of the cylindrical body 25 to assemble the guide portion assembly C ⁇ b> 1.
- the lifting mechanism first partial assembly D1 and the lifting mechanism second partial assembly D2 are installed in the lower case body 20a.
- the bearings 13 and 13 of the worm 10 and the bearings 18 and 18 of the female screw 15 are temporarily fixed with the worm 10 and the axis of the worm wheel 11 orthogonal to each other so that the worm wheel 11 is engaged with the worm 10.
- the upper case body 20b is covered from above, and the bearings 13 and 13 of the worm 10 and the bearings 18 and 18 of the female screw 15 are securely fixed.
- the cylinder 1 is inserted upward from below the lifting mechanism second portion D2, and is screwed into the female screw 15 while rotating the male screw portion 5 of the cylinder 1, so that the telescopic rod 2 is moved upward. It penetrates upward from the case body 20a. Then, at the center position of the male screw portion 5 of the cylinder 1, the rotation of the male screw portion 5 of the cylinder 1 is stopped, and it is confirmed whether or not a lifting stroke can be secured.
- the case 20 is provided with the first and second lift assemblies D1 and D2, the lower case body 20a and the upper case body 20b are not clearly illustrated. It is the figure which showed roughly.
- the rails 26, 26 of the cylinder 25 are fitted into the recesses 6a, 6a of the moving body 6 of the cylinder 1 from below, and the cylinder 25 is raised in this state, and the cylinder is formed on the lower surface of the lower case body 20a.
- the flange 27 of the body 25 is brought into contact, and the lower case main body 20a and the cylindrical body 25 are fastened and fixed with bolts and nuts (not shown) to obtain the completed state of FIG.
- the worm 10 is driven by the electric motor.
- the wheel gear may be driven by meshing the helical gear.
- a vehicle height adjusting suspension device includes a drive gear 32 fixed to a rotating shaft 31 of a motor 30, a helical gear 33 meshing with the drive gear 32, and the helical gear. And a wheel gear 34 that meshes with 33. It is assumed that a female screw 15 that is screwed into the male screw portion 5 is fixed to the inner peripheral surface of the wheel gear 34.
- the worm 10 is driven by the electric motor, but the worm may be manually rotated.
- the vehicle height is manually adjusted while the vehicle is stopped.
- An example of such a vehicle height adjusting suspension device will be described with reference to FIGS. 10 and 11A and 11B.
- FIG. 11 (a), (b) from the front seeing FIG. 11 (a), (b) from the front, the left side is made into one and the right side is made into the other.
- the vehicle height adjusting suspension includes a pair of bearing members 42 and 42 that rotatably support both shaft portions 41 of a worm (transmission gear) 40 that meshes with a worm wheel (wheel gear) 110, and the other shaft portion 41.
- a receiving member 45 having a pair of locking pieces 43, 43 projecting in a direction orthogonal to the axis of the end, and a hollow portion 45 a into which the other shaft 41 is inserted and removed,
- a spring 47 overlap spring or coil spring provided between the other bearing member 42 and the receiving member 45 and both shaft portions 41 are inserted and supported rotatably, and an attached body (for example, A pair of support members 480 and 481 attached to the case) and a manual operation rod 49 detachably attached to the other shaft portion 41.
- a female screw 15 is fixed to the inner peripheral surface of the worm wheel 110 and is screwed into the male screw portion 5 of the cylinder 1.
- the worm 40 is meshed with the worm wheel 110, but can move slightly in the axial direction.
- a fitting recess 41 a (connecting portion) in which a fitting projection 49 a of a manual operation rod 49 described later is fitted to an end portion of the other shaft portion 41 extends along the axial direction from the end surface of the end portion. Is formed.
- the receiving member 45 has a cylindrical shape and has the above-described cavity 45a.
- the receiving member 45 has a spring receiving portion (convex portion) 44 having an outer diameter larger than the inner diameter of the supporting member 481 and smaller than the outer diameter of the supporting member 481 on the outer peripheral surface of one end thereof, and a hollow portion 45a.
- a pair of grooves 46 and 46 into which the locking pieces 43 and 43 of the worm 40 are inserted are formed on the inner peripheral surface of the worm 40 along the axial direction.
- the inner diameter of the spring 47 is smaller than the length of the straight line connecting the tip portions of the locking pieces 43 and 43. That is, the spring 47 is configured to be compressed between the one bearing member 42 and the spring receiving portion 44.
- the support members 480 and 481 have screw grooves 48a formed on the outer peripheral surface thereof, and are fixed by being screwed into holes of a mounted body (for example, a case) (not shown).
- One support member 480 has a cylindrical portion 480a through which one shaft portion 41 is inserted, and an annular portion 480b in which the above-described screw groove 48a is formed on the outer peripheral surface.
- the other support member 481 has an annular shape, and the other shaft portion 41 is inserted therethrough.
- one bearing member 42 is in contact with the end surface of the cylindrical portion 480a.
- One bearing member 42 is separated from the worm 40 so that the worm 40 can move in the axial direction.
- the other bearing member 42 is urged by a spring 47 and is in contact with the end face of the worm 40. Further, the spring receiving portion 44 of the receiving member 45 is in pressure contact with the end surface of the other supporting member 481 by the spring 47.
- the manual operation bar 49 includes a fitting convex portion 49 a projecting along the axial direction from the end face of the tip portion, and an annular pressing formed on the peripheral edge portion of the fitting convex portion 49 a. Part 49b.
- 11A shows that the support members 480 and 481 and the pair of bearing members 42 and 42 are attached to a body to be attached (for example, a case), and both shaft portions 41 and 41 of the worm 40 are the bearing members 42 and 42. And the support members 480 and 481 are rotatably supported. More specifically, in a state where the spring 47 is extrapolated to the other shaft portion 41 of the worm 40 and the locking pieces 43, 43 of the other shaft portion 42 are inserted into the grooves 46, 46 of the receiving member 45, The receiving member 45 is inserted into the other support member 481 and is rotatably supported.
- the spring 47 provided between the other bearing member 42 and the receiving member 45 is in a compressed state, and the bias receiving force causes the spring receiving portion 44 of the receiving member 45 to move to the other.
- the end face of the spring receiving portion 44 is pressed against the end face of the support member 481 so that the shaft portions 41 and 41 of the worm 40 cannot be manually rotated. That is, the shafts 41 and 41 of the worm 40 are locked so that they cannot be rotated.
- the vehicle height adjustment is determined by the driver.
- the flatness is paved with asphalt. It can be applied to any road.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Vehicle Body Suspensions (AREA)
- Fluid-Damping Devices (AREA)
Abstract
Description
Claims (5)
- シリンダ(1)、及び該シリンダ(1)に進退自在に設けられると共に、その先端部が車体(X)に連結される伸縮ロッド(2)を有するショックアブソーバ(S)と、シリンダ(1)の上端部に取り付けられたバネ受け台(3)に下端部が支持された状態で伸縮ロッド(2)に外挿されたコイルスプリング(4)とを備えた車高調整懸架装置において、動力源によって回動される歯車機構部(A)と、該歯車機構部(A)からの伝達動力をシリンダ(1)の昇降動力に変換する動力変換部(B)と、シリンダ(1)の昇降をガイドするガイド部(C)とから構成される昇降機構部(D)を備えたことを特徴とする車高調整懸架装置。
- 前記歯車機構部(A)は、動力源によって回動される伝動ギヤ(10,33,40)、及び該伝動ギヤ(10,33,40)に噛合すると共に、前記シリンダ(1)において、昇降ストロークを確保できる位置に外挿されるホイールギヤ(11,34,110)を備えたことを特徴とする請求項1に記載の車高調整懸架装置。
- 前記伝動ギヤ(40)の一方の軸部(41)の一端部において、該一端部に対して直交方向に凸部(44)を設けると共に、手動操作棒(49)を接続するための接続部(41a)を設け、さらに、手の押圧によって離間できる程度に、該凸部(44)を、軸部(41)を回動自在に支持する支持部材(481)に圧接させる圧接手段(47)を設けることを特徴とする請求項2に記載の車高調整懸架装置。
- 前記動力変換部(B)は、ホイールギヤ(11,34,110)の内周面に固着される雌ねじ(15)と、前記シリンダ(1)の外周面に形成される、該雌ねじ(15)を螺合させるための雄ねじ部(5)とを備えたことを特徴とする請求項2又は3に記載の車高調整懸架装置。
- 前記ガイド部(C)は、前記動力変換部(B)よりも下方に軸方向に沿って配置されるレール(26,26)と、前記シリンダ(1)の下端部に取り付けられると共に、該レール(26,26)に移動自在に設けられる移動体(6)とから構成されることを特徴とする請求項1乃至4のいずれか1項に記載の車高調整懸架装置。
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US13/129,086 US8616352B2 (en) | 2008-11-18 | 2009-11-17 | Height adjustable suspension unit |
JP2010515146A JP4590028B2 (ja) | 2008-11-18 | 2009-11-17 | 車高調整懸架装置 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2008-294367 | 2008-11-18 | ||
JP2008294367 | 2008-11-18 |
Publications (1)
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WO2010058773A1 true WO2010058773A1 (ja) | 2010-05-27 |
Family
ID=42198212
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2009/069497 WO2010058773A1 (ja) | 2008-11-18 | 2009-11-17 | 車高調整懸架装置 |
Country Status (3)
Country | Link |
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US (1) | US8616352B2 (ja) |
JP (1) | JP4590028B2 (ja) |
WO (1) | WO2010058773A1 (ja) |
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JP2021037868A (ja) * | 2019-09-04 | 2021-03-11 | アイシン精機株式会社 | 車高調整装置 |
JP7348593B2 (ja) | 2019-09-04 | 2023-09-21 | 株式会社アイシン | 車高調整装置 |
US11999210B2 (en) | 2019-10-25 | 2024-06-04 | Iljin Motion & Control Gmbh | Electromechanical vehicle height adjustment unit and vehicle height adjustment method |
Also Published As
Publication number | Publication date |
---|---|
US8616352B2 (en) | 2013-12-31 |
US20110221109A1 (en) | 2011-09-15 |
JPWO2010058773A1 (ja) | 2012-04-19 |
JP4590028B2 (ja) | 2010-12-01 |
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