GB1129566A - Improvements in or relating to cushioning cylinders - Google Patents

Improvements in or relating to cushioning cylinders

Info

Publication number
GB1129566A
GB1129566A GB21086/66A GB2108666A GB1129566A GB 1129566 A GB1129566 A GB 1129566A GB 21086/66 A GB21086/66 A GB 21086/66A GB 2108666 A GB2108666 A GB 2108666A GB 1129566 A GB1129566 A GB 1129566A
Authority
GB
United Kingdom
Prior art keywords
cylinder
piston
air
grooves
valve
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
GB21086/66A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Erickson Tool Co
Original Assignee
Erickson Tool Co
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 Erickson Tool Co filed Critical Erickson Tool Co
Publication of GB1129566A publication Critical patent/GB1129566A/en
Expired legal-status Critical Current

Links

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
    • F16F9/32—Details
    • F16F9/34—Special valve constructions; Shape or construction of throttling passages
    • F16F9/346—Throttling passages in the form of slots arranged in cylinder walls
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q16/00—Equipment for precise positioning of tool or work into particular locations not otherwise provided for
    • B23Q16/02—Indexing equipment
    • B23Q16/04—Indexing equipment having intermediate members, e.g. pawls, for locking the relatively movable parts in the indexed position
    • B23Q16/06—Rotary indexing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
    • F15B15/20—Other details, e.g. assembly with regulating devices
    • F15B15/22—Other details, e.g. assembly with regulating devices for accelerating or decelerating the stroke
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
    • F15B15/20—Other details, e.g. assembly with regulating devices
    • F15B15/22—Other details, e.g. assembly with regulating devices for accelerating or decelerating the stroke
    • F15B15/222—Other details, e.g. assembly with regulating devices for accelerating or decelerating the stroke having a piston with a piston extension or piston recess which throttles the main fluid outlet as the piston approaches its end position
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
    • F15B21/10—Delay devices or arrangements
    • 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
    • F16F9/48—Arrangements for providing different damping effects at different parts of the stroke
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/14—Rotary member or shaft indexing, e.g., tool or work turret
    • Y10T74/1418—Preselected indexed position
    • Y10T74/1424—Sequential
    • Y10T74/1447—Velocity control

Abstract

1,129,566. Air dashpots. ERICKSON TOOL CO. 12 May, 1966 [14 Feb., 1966], No. 21086/66. Heading F2S. A pneumatic piston and cylinder shockabsorber for cushioning, or decelerating, the indexing movement of an index plate of an index fixture immediately prior to it reaching the final indexed position, comprises a piston 16 which is sealed in a working cylinder and which has a rod 17 which extends through openings 18, 19 respectively in a cylinder head 20 and the housing 2 of the index fixture 3 to be reciprocated by the latter, air ports 21, 26 leading to atmosphere being provided in the heads 20, 25 of the cylinder 15 which is also provided with one or more longitudinally extending-grooves 34. The bore 26 leads to a transverse bore 27 which is controlled by a needle valve 29 and which communicates with central opening 28 connected to the atmosphere through a nozzle 33 and to the interior of the cylinder by means of a one-way flap valve 31. The piston 16 can move relatively freely as the rod 17 is withdrawn from the cylinder 34 air passing out of the cylinder through the point 21, and into it at the opposite end through the opening 28 and the one way valve 31, air also passing from one side of the piston to the other through the grooves 34. Contraction of the shock-absorber is relatively free until the piston 16 passes the corresponding ends of the grooves 34 after which the final movement of the piston 16 is cushioned since air is only able to escape from the cylinder through the port 26, the bores 27, 28 and the nozzle 33, the valve 31 being closed.
GB21086/66A 1966-02-14 1966-05-12 Improvements in or relating to cushioning cylinders Expired GB1129566A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US527361A US3406596A (en) 1966-02-14 1966-02-14 Cushioning cylinder for index fixtures and the like

Publications (1)

Publication Number Publication Date
GB1129566A true GB1129566A (en) 1968-10-09

Family

ID=24101162

Family Applications (1)

Application Number Title Priority Date Filing Date
GB21086/66A Expired GB1129566A (en) 1966-02-14 1966-05-12 Improvements in or relating to cushioning cylinders

Country Status (2)

Country Link
US (1) US3406596A (en)
GB (1) GB1129566A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2305645A1 (en) * 1975-03-26 1976-10-22 Stabilus Gmbh LOCKABLE PNEUMATIC OR HYDROPNEUMATIC SPRING

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030140781A1 (en) * 2000-05-24 2003-07-31 Johann Weiss Pneumatic cylinder with damping in the end position

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US419916A (en) * 1890-01-21 Piston-cylinder
US763285A (en) * 1903-06-03 1904-06-21 Reinhold Herman Piston-cylinder.
US998962A (en) * 1908-11-04 1911-07-25 Joseph P Doyle Smoke-preventing device.
US1151595A (en) * 1914-04-01 1915-08-31 Samuel D Ingham Expansible chamber.
US3005523A (en) * 1959-10-06 1961-10-24 Electric Regulator Corp Damping dashpot

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2305645A1 (en) * 1975-03-26 1976-10-22 Stabilus Gmbh LOCKABLE PNEUMATIC OR HYDROPNEUMATIC SPRING

Also Published As

Publication number Publication date
US3406596A (en) 1968-10-22

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