US3688646A - Demountable side lug mounting for precision piston and cylinder devices - Google Patents

Demountable side lug mounting for precision piston and cylinder devices Download PDF

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Publication number
US3688646A
US3688646A US168665A US3688646DA US3688646A US 3688646 A US3688646 A US 3688646A US 168665 A US168665 A US 168665A US 3688646D A US3688646D A US 3688646DA US 3688646 A US3688646 A US 3688646A
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United States
Prior art keywords
cylinder
mounting
mounting arrangement
cap
piston
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Expired - Lifetime
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US168665A
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English (en)
Inventor
Francis S Flick
Russell F Pabst
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Miller Fluid Power Corp
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Miller Fluid Power Corp
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Publication date
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Assigned to FLICK-REEDY CORPORATION A CORP OF ILLINOIS reassignment FLICK-REEDY CORPORATION A CORP OF ILLINOIS MERGER (SEE DOCUMENT FOR DETAILS). ILLINOIS, EFFECTIVE DEC. 29TH 1983 Assignors: MILLER FLUID POWER CORPORATION
Assigned to MILLER FLUID POWER CORPORATION reassignment MILLER FLUID POWER CORPORATION CHANGE OF NAME (SEE DOCUMENT FOR DETAILS). EFFECTIVE DEC. 29, 1983 Assignors: FLICK-REEDY CORPORATION
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • F15B15/08—Characterised by the construction of the motor unit
    • F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
    • F15B15/1423—Component parts; Constructional details
    • F15B15/1433—End caps
    • 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
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J10/00—Engine or like cylinders; Features of hollow, e.g. cylindrical, bodies in general
    • F16J10/02—Cylinders designed to receive moving pistons or plungers

Definitions

  • Model 72 One form of mounting arrangement made by applicants assignee has been a -so-called Model 72, wherein generally tetrahedronal lugs are disposed on opposite sides of the cylinders adjacent the opposite end caps of a tie rod-type cylinder. These lugs have fastener receiving openings extending therethrough, 2
  • NFPA National Fluid Power Association
  • This invention is directed, in brief, to the provision of an improved form of side lug mounting arrangement for a piston and cylinder device.
  • the best mode currently contemplated for carrying out the invention includes the provision of a generally U-shaped bar, having a mid-portion with apertures therethrough for receiving the tie rods of a piston and cylinder device so that the bar may be secured to the opposite end caps of a cylinder.
  • the two legs of the U- shaped mounting arrangement straddle the lower portion of the opposite sides of the end caps of the cylinder and have fastener receiving openings extending therethrough, generally transverse to the tie rod openings and the length of the rod of the cylinder, for fastening the cylinder device to a supporting surface.
  • FIG. 1 is a perspective view of the mounting arrangement and a piston and cylinder device with which the mounting arrangement is used;
  • FIG. 2 is an end elevational view of the piston and cylinder device and mounting arrangement of this invention
  • FIG. 3 is a side elevational view of a piston and cylinder device and mounting arrangement of this invention.
  • FIG. 4 is a top plan view of the mounting arrangement of this invention.
  • a linearly extensible piston rod 14 which extends through a bushing 16, in at least one of the end caps 18, which close the opposite ends of the cylinder tube 20.
  • tie rods 22 extend lengthwise of the cylinder, and hold the end capson the tube with the aid of tie rod nuts 24.
  • Fluid ports 26 may be provided for permitting the ingress and egress of fluid from the interior of the cylinder tube. As is well known, in operation,' when fluid under pressure is admitted through ports 26, it exerts a force against a piston element inside the tube 20, which is connected to'the rod 14.
  • the mounting arrangement or mounting device 10 of this invention can be characterized as a so-called side lug" form of cylinder mount.
  • the mounting device 10 comprises a generally U-shaped bar 30 of suitable durable hard material such as a tempered steel or the like.
  • Bar 30 has a mid-portion or bight" 32 having top surface 32a, bottom surface 32b, an outer surface 320 and an inner surface 32d.
  • the bar 30 is provided with a pair of parallel legs 34 and 36, which are spaced apart and extend transversely relative to the mid-portion 32.
  • Each of the legs also has a top 340, 36a, respectively; a bottom 34b, 36b, respectively; an outer surface 360, 36c, respectively; and an inner surface 34d, 36d, respectively.
  • a pair of openings 38 is provided in the mid-portion 32 for receiving the tie rods 22 therethrough and the openings are recessed at 40 in the outer surface 320 for receiving the mounting nuts 41.
  • the mounting bar 30 may be affixed to the pistonvand cylinder device 12.
  • each of the legs 34 and'36 is provided with fastener receiving openings 42 which extend from the top surface 34a and 36a through the bottom surface 34b, 36b, respectively, so that a suitable fastening element, such as a bolt or the like, might extend through the openings 42 to secure the bar 30, and cylinder 12, to a supporting surface.
  • a suitable fastening element such as a bolt or the like
  • the fastener receiving openings 42 are recessed as at 42a in the top surfacels 34a and 36a of each of the legs 34 and 36, respective y.
  • the bar 30 would be made in different sizes for different size cylinders. It is common for cylinder sizes to generally be denoted by the size of the bore of the cylinder tube, with mounting dimensions being standardized based upon the bore size. For each different bore size cylinder, it is contemplated that the openings 38 would be spaced different distances apart, to receive the tie rods 22 with minimum clearance. This dimensional relationship of the openings 38 with respect to the tie rods 22 would insure that for every size cylinder, each dimensionally different bar 30 would be precisely located relative to the lower surface of the end cap of that cylinder. Moreover, it is contemplated that the dimension between the centerlines of the fastener receiving openings or cross-bores 42 in each of the legs 34 and 36 would be a precise dimension apart for each different size cylinder, all in accordance with the NFPA standards.
  • a pair of shoulders are provided in the inner face 32d between the inner faces 34d and 36d of each leg 34 and 36.
  • the shoulders are defined by a pair of spaced apart parallel surfaces 440 and 44b which terminate in return surfaces 46a and-46b which join with the inner faces 34d and 36d.
  • the faces 34d and 36d taper slightly outwardly from the juncture with return surfaces 46a and 46b. It is intended that this specific form would be preferably used with a cylinder end cap, which is also slightly tapered, as indicated by the surfaces 50a, 50b, 50c and 50d in FIG. 1.
  • each leg 34 and 36 from the front face 32c to the free end would be 1.607 inches and the distance between faces 34d and'36d at the free ends of each leg would be 2.160 inches.
  • the mounting arrangement of this invention would be utilized with a tie rod type piston and cylinder device.
  • the tie rods are maintained in a prestressed state. It is desirable that the inner face 32d of the portion 32 be in facial engagement with at least a substantial portion of the exterior of the end cap 18. This is accomplished in the illustrated embodiment by making the surface 32d a planar surface which mates with a substantial portion of the end cap between the tie rods.
  • the faces 34d and 36d do not have to be tapered.
  • the mounting arrangement of this invention would still provide a secure, stable mounting, so long asthere is firm facial engagement between the end cap and the surface 32d, and so long as the fastening member which extends through the apertures 42 is firmly secured within a supporting surface.
  • the mounting member When assembled, the mounting member is, in effect, locked to the cylinder when it is bolted against the head and held in place by the nuts 41 on the tie rods.
  • the side legs are fixed in position with the fastener elements extending therethrough to lock the cylinder to a supporting surface.
  • each leg 34b and 36b is preferably smoothly machined to lie in a position below the centerline of the cylinder rod, conforming to the NFPA standard dimension for the bore size in volved.
  • the piston and cylinder device will be firmly locked against movement in any direction so that the work stroke of the rod may be true and precise, insuring the accuracy of the stroke and prolonging the life of the cylinder.
  • the heads of the cylinder will be firmly secured against the mounting surface, insuring proper height and location of the piston rod.
  • the side lug mounting will conform to dimensional standards yet be demountable upon removal of the securing mounting nuts 41.
  • a mounting arrangement for use with a piston and cylinder device having a cylinder tube, a piston rod about a common centerline, opposite end caps, and tie rods passing through the caps to hold the device assembled comprising: a member having a first portion for disposition in face abutment with the outer face of an end cap, removable means for connecting the member to the cylinder end cap abutted; and a pair of spaced second portions respectively extending beside the cylinder end cap for generally embracing the sides of the end cap, each second portion including cross-bore means for receiving a fastener element therein, said receiving means extending generally in a direction which is transverse to the length of the cylinder to which the member is connected, and said cross-bore means being located relative to each other and to said centerline in predetermined relation.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Pistons, Piston Rings, And Cylinders (AREA)
  • Actuator (AREA)
US168665A 1971-08-03 1971-08-03 Demountable side lug mounting for precision piston and cylinder devices Expired - Lifetime US3688646A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US16866571A 1971-08-03 1971-08-03

Publications (1)

Publication Number Publication Date
US3688646A true US3688646A (en) 1972-09-05

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ID=22612432

Family Applications (1)

Application Number Title Priority Date Filing Date
US168665A Expired - Lifetime US3688646A (en) 1971-08-03 1971-08-03 Demountable side lug mounting for precision piston and cylinder devices

Country Status (6)

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US (1) US3688646A (it)
CA (1) CA951981A (it)
DE (1) DE2232790A1 (it)
FR (1) FR2148218B1 (it)
GB (1) GB1345317A (it)
IT (1) IT958445B (it)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4827835A (en) * 1986-04-28 1989-05-09 Peninsular, Inc. Cylinder end cap
US4909130A (en) * 1986-04-28 1990-03-20 Peninsular, Inc. Cylinder end cap
US5217260A (en) * 1992-02-13 1993-06-08 Fred Knapp Engraving Co., Inc. Control valve with universal porting feature
US5477774A (en) * 1993-10-07 1995-12-26 Smc Kabushiki Kaisha Cylinder device
US5725195A (en) * 1995-01-17 1998-03-10 Cotter; Jonathan P. Cylinder trunnion mount
WO2004094837A1 (de) * 2003-04-24 2004-11-04 Festo Ag & Co Befestigungselement und darauf abgestimmter zylinderdeckel eines fluidbetätigen arbeitszylinders
US20140102740A1 (en) * 2012-10-12 2014-04-17 Caterpillar Inc. Front Head Nut Pocket Configuration for Hydraulic Hammer
US20190195248A1 (en) * 2016-03-17 2019-06-27 Smc Corporation Fluidic cylinder

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE424667B (sv) * 1975-09-04 1982-08-02 Oiles Industry Co Ltd Luftcylinderanordning av plast

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US152540A (en) * 1874-06-30 Improvement in rock-drill engines
US1310983A (en) * 1919-02-08 1919-07-22 Moon Brothers Mfg Company Piston-rod packing.
US2798777A (en) * 1954-12-16 1957-07-09 Flick Reedy Corp Cylinder mount
US3414221A (en) * 1966-12-27 1968-12-03 Carl E. Nelson Mount for telescope sight
US3559539A (en) * 1969-09-22 1971-02-02 Sp Mfg Corp Fluid actuator construction

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US152540A (en) * 1874-06-30 Improvement in rock-drill engines
US1310983A (en) * 1919-02-08 1919-07-22 Moon Brothers Mfg Company Piston-rod packing.
US2798777A (en) * 1954-12-16 1957-07-09 Flick Reedy Corp Cylinder mount
US3414221A (en) * 1966-12-27 1968-12-03 Carl E. Nelson Mount for telescope sight
US3559539A (en) * 1969-09-22 1971-02-02 Sp Mfg Corp Fluid actuator construction

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4827835A (en) * 1986-04-28 1989-05-09 Peninsular, Inc. Cylinder end cap
US4909130A (en) * 1986-04-28 1990-03-20 Peninsular, Inc. Cylinder end cap
US5217260A (en) * 1992-02-13 1993-06-08 Fred Knapp Engraving Co., Inc. Control valve with universal porting feature
US5477774A (en) * 1993-10-07 1995-12-26 Smc Kabushiki Kaisha Cylinder device
US5725195A (en) * 1995-01-17 1998-03-10 Cotter; Jonathan P. Cylinder trunnion mount
WO2004094837A1 (de) * 2003-04-24 2004-11-04 Festo Ag & Co Befestigungselement und darauf abgestimmter zylinderdeckel eines fluidbetätigen arbeitszylinders
US20060254417A1 (en) * 2003-04-24 2006-11-16 Gerald Muller Fastening element and adapt cylinder cover of a fluid-actuated working cylinder
US7284473B2 (en) * 2003-04-24 2007-10-23 Festo Ag & Co. Fastening element and adapt cylinder cover of a fluid-actuated working cylinder
CN100347455C (zh) * 2003-04-24 2007-11-07 费斯托合资公司 用于一种液动工作缸的紧固元件和一种相匹配的气缸盖
US20140102740A1 (en) * 2012-10-12 2014-04-17 Caterpillar Inc. Front Head Nut Pocket Configuration for Hydraulic Hammer
US9279232B2 (en) * 2012-10-12 2016-03-08 Caterpillar Inc. Front head nut pocket configuration for hydraulic hammer
US20190195248A1 (en) * 2016-03-17 2019-06-27 Smc Corporation Fluidic cylinder
US10927860B2 (en) * 2016-03-17 2021-02-23 Smc Corporation Fluidic cylinder

Also Published As

Publication number Publication date
FR2148218B1 (it) 1974-07-12
IT958445B (it) 1973-10-20
GB1345317A (en) 1974-01-30
DE2232790A1 (de) 1973-02-15
FR2148218A1 (it) 1973-03-11
AU4353672A (en) 1974-02-14
CA951981A (en) 1974-07-30

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Owner name: MILLER FLUID POWER CORPORATION

Free format text: CHANGE OF NAME;ASSIGNOR:FLICK-REEDY CORPORATION;REEL/FRAME:004250/0306

Owner name: FLICK-REEDY CORPORATION A CORP OF ILLINOIS

Free format text: MERGER;ASSIGNOR:MILLER FLUID POWER CORPORATION;REEL/FRAME:004250/0296