Classifications

• • 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
  • F16F9/10—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using liquid only; using a fluid of which the nature is immaterial
  • F16F9/12—Devices with one or more rotary vanes turning in the fluid any throttling effect being immaterial, i.e. damping by viscous shear effect only

Definitions

• the present invention uses a polymer viscous fluid such as polysobutylene or other viscous fluids, and obtains a resistance by utilizing its viscous shear resistance. Accordingly, the present invention relates to an improvement of a rotary coaxial multi-cylinder plate type damper capable of exerting a damping action against external force, that is, a braking force, which can be used in various applications.
• a polymer viscous fluid such as polysobutylene or other viscous fluids
• a viscous fluid with high viscosity is arranged between two adjacent surfaces of two objects that perform relative motion. Utilizes the viscous shear resistance of the viscous fluid generated during the relative movement.
• a shock absorber of a type that obtains a resistance against an external force without generating an internal pressure increase in the viscous fluid has already been developed.
• the multi-cylinder viscous damper j of JP-B-56-51618 has already been known.
• a required number of fixed plates are set in a balanced state, and the viscous fluid in the casing is a damper disposed between the surfaces of the movable plate and the fixed plate.
• the same multi-cylinder plate type is mounted on the same type of damper, and one or both of the movable plate and the fixed plate are easily operated from the outside.
• This makes it possible to increase or decrease the facing area between the two surfaces, or to pressurize the viscous fluid as necessary to adjust its density and hence its viscosity.
• the purpose is to make it possible to easily and finely adjust the braking force of the damper.
• the invention provides, in a casing, a required number of movable plates arranged in a coaxial multi-cylinder that rotates together with a movable member that can be rotated by an external force, and alternately with these movable plates.
• a required number of fixed plates in a coaxial multi-cylinder arrangement in an evenly spaced state are arranged in a combined state, and the viscous fluid in the casing is distributed between the surfaces of the movable plate and the fixed plate.
• the damper one or both of the movable plate and the fixed plate can be freely screwed in the axial direction to increase or decrease the facing area of the two plates by rotating the rotation adjuster. It is an object of the present invention to provide a rotary coaxial multi-cylinder plate type vehicle using a viscous fluid having such a configuration.
• the depth of the lie between the movable plate and the fixed plate can be adjusted to be as shallow and shallow as possible. Is increased or decreased, so that when an external force applies a rotational force to the movable plate, viscous shearing occurs in the viscous fluid existing between the stationary fixed plate and the movable plate subjected to the rotational force. Since the resistance changes in proportion to the size of the facing area, the damping force of the damper can be adjusted to a desired value.
• FIG. 1 is a longitudinal sectional front view of an essential part of a damper according to the present invention
• FIG. 2 is an exploded perspective view of the same.
• the casing 1 which is a body, has its opening.
• ld, ld, ⁇ , ⁇ , ⁇ , and ⁇ , and a shaft bearing le is opened at one corner, and the bottom wall 1 is movable.
• the O-ring lg is turned on to open the fitted main shaft lh.
• the movable board 2a is provided with a movable board section 2a at an upper position on the movable board 2.
• a required number of movable plates 3, 3 of the same diameter as the movable board 2 are erected from the board section 2a.
• An axial center space 3a is formed in the movable plate 3 having the smallest diameter, and a plate gap 3b, 3b, * of uniform length is formed between the movable plates 3,3 ⁇ .
• the rectangular column 2b whose extension 2 extends downward from the bottom wall If of the casing 1, has a square hole 4a of the rotating arm 4 on which a rotational force acts as an external force.
• the set screw 4b for fixing this is attached to the spiral 2c of the movable glaze 2.
• the adjuster 5 is attached to the retaining gear 5 a provided at the upper end thereof.
• a locking groove 5b for a driver is provided so that the rotation operation can be performed from the outside, and the locking gear 5a is dropped into the concave ring portion la of the casing 1.
• the male screw portion 6a formed in the lower part of the transmission gear & is screwed with the female screw portion lb of the casing 1.
• This is also formed coaxially with the movable shaft 2, and is constituted by a cylindrical portion at the axis and a cylindrical portion on the outer periphery thereof. Are inserted into the gaps 3b, 3b of the movable plates 3, 3 so that the distance h between the movable plates 3, 3 and the fixed plates 7, 7 is equalized.
• the resistance to the rotation that is, the braking force is obtained by the viscous shear resistance of the viscous fluid A between the two, and the braking force is applied at this time by opposing the two plates 3 and 7. It is proportional to the area.
• the rotation adjuster 5 is turned to the right or to the left, and the transmission gear 8 babbling to the retaining gear portion 5a is turned.
• the male screw portion 8a screwed into the female screw portion lb of the receiving ring 1 is screwed or unscrewed, so that the fixed plate fixed to the transmission gear 6? ,
• the facing area between 3, 3, and the fixing plates 7, 7, ⁇ is reduced or changed, and the braking force can be adjusted in proportion to this.
• the fixed plate is made movable up and down.
• the fixed plate is made immovable in the vertical direction so that the movable plate can be moved up and down. Of course, you may do so.
• the thick invention is configured as described above, the braking force can be adjusted by changing the facing area between the movable plate and the fixed plate only by rotating the rotation adjuster. As a result, it is possible to provide a damper that can respond to various requests.
• the viscous fluid is compressed by the rotation of the rotation adjuster. If the fluid is filled in the packaging, the density of the viscous fluid is increased by the rotation. Therefore, the viscosity of the fluid can be changed, and the braking force as a damper can be adjusted. It becomes possible.

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• Engineering & Computer Science (AREA)
• General Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Fluid-Damping Devices (AREA)

Applications Claiming Priority (2)

Publications (1)

Family

ID=14141946

Family Applications (1)

Country Status (3)

Cited By (8)

Families Citing this family (1)

Citations (2)

• 1987
  • 1987-06-22 JP JP9559687U patent/JPS64736U/ja active Pending
• 1988
  • 1988-06-08 WO PCT/JP1988/000552 patent/WO1988010377A1/ja unknown
  • 1988-06-08 AU AU19375/88A patent/AU1937588A/en not_active Abandoned

Patent Citations (2)

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