USRE24496E - Spring plunges - Google Patents

Spring plunges Download PDF

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Publication number
USRE24496E
USRE24496E US24496DE USRE24496E US RE24496 E USRE24496 E US RE24496E US 24496D E US24496D E US 24496DE US RE24496 E USRE24496 E US RE24496E
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Prior art keywords
passage
plunger
polygonal
head
shoulder
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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
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B19/00—Bolts without screw-thread; Pins, including deformable elements; Rivets
    • 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
    • Y10T74/20—Control lever and linkage systems
    • Y10T74/20576—Elements
    • Y10T74/20636—Detents

Definitions

  • a device of this character must necessarily be extremely compact in order that it may fit into the very limited spaces within such tools, and it is at the same time essential that the spring pressure remains as nearly as possible uniform throughout the length of adjustment.
  • the object of my invention is to provide a locating device for jigs, fixtures and the like of simple and inexpensive construction and which is convenient to operate.
  • a further object is to provide a device so constructed that the plunger movement thereof is very long relative to the length of the body thereof.
  • Figure 1 is a side view of the device of the invention
  • Figure 2 is a cross-sectional view through the axial center thereof
  • Figure 3 and 4 are end views of the device.
  • Figure 5 illustrates a part of the device as it appears when removed therefrom.
  • the structure of the invention comprises a tubular body 1, which is provided with external screw threads throughout its length.
  • a plunger 2 is seated in this body for limited axial movement therein.
  • the plunger is shown made with a head 3 for engagement with an internal shoulder 1 of the body.
  • the latter is, at the opposite end, provided with internal screwthreads for re
  • the plunger 2 is first seated within the body 1 into which a spring 5 then is inserted, whereupon the plug 4 is mounted in the screwthreads of the body.
  • the spring maintains the plunger advanced against the shoulder 1 of the body, in which position the reduced portion 6 of the plunger projects a distance beyond the end of the device.
  • the shape and construction of the plunger are important for the following reasons. It is necessary to provide as much space as possible for the spring in order to obtain substantially even tension thereon during the operation of the device and the head 3 of the plunger is to this end made quite thin.
  • the reduced portion 6 of the plunger is polygonal in cross-section, having preferably six sides. When so constructed and when the plunger is of a size slidably to fit within a similar polygonal make the plunger in the manner best shown in Fig. 5.
  • Polygonal stock of the required size is fed into a screw machine chuckand turned down to produce the reduced shoulder portion 7.
  • the head 3 is also made on a screw machine, out of stock of the proper diameter, whereupon it is pressed onto this shoulder portion and locked in position thereon by upsetting the end of the shoulder, substantially as shown in this view. This completes the construction of the device.
  • a spring plunger comprising: a tubular body externally threaded throughout its length, there being an inwardly projecting shoulder in the passage through the body near the front end thereof, the portion of the passage in front of said shoulder being polygonal in crosssection, the rear end of the passage being internally threaded, a plunger having a cylindrical head fitted to slide within the passage and a polygonal shank extending from the head thereof fittingly to ride in the polygonal portion of the passage, an externally threaded plug seated in the threads of the passage to close the rear end of the passage, and a compression spring between said plug and the head of the plunger normally maintaining the end of the polygonal shank projected beyond the from end of the body.
  • a spring plunger comprising: a tubular body externally threaded throughout its length, there being an inwardly projecting shoulder in the passage through the body near the front end thereof, the portion of the passage in front of said shoulder being polygonal in crosssection, a plunger consisting of a polygonal shank slidably extending through the polygonal portion of the passage, an annular head of a diameter fittingly to ride within the passage, the rear end of the shank being cut down to provide a stud projecting therefrom of a diameter tightly to seat in the annular head, the head being rigidly secured in position on the stud, a plug closing the rear end of the passage, and a compression spring between said plug and the head of the plunger normally maintaining the front end of the polygonal shank projected beyond the from end of the body.
  • a plunger including a cylindrical head fitted to slide within the passage and a polygonal shank extending from the head thereof fittingly to ride in the polygonal portion of the passage, the front end of the shank being well rounded, a plug closing the rear end of the passage, the plug having a polygonal recess in the rear end thereof,
  • a plunger consisting of an annular head fitted to slide within the passage and a polygonal shank slidably extending through the polygonal portion of the passage, the front end of the shank being well rounded, the-rear end of the shank being cut down to provide a stud of-a diameter tightly to seat in the annular head, the head being rigidly secured in position on the stud, a plug closing the rear end of the passage, the plug having a polygonal recess in the rear end thereof, and a compression spring between said plug and the head of the plunger normally maintaining the front end of the polygonal shank projected beyond the front end of the body.
  • a spring plunger comprising: a tubular body externally threaded throughout its length, there being an inwardly projecting shoulder in the passage through the body near the front end thereof; a plunger having a head fitted to slide axially within said passage and a shank extending from said head fittingly to ride in the portion of said passage disposed forwardly of said shoulder, said shank being formed with wrench-receiving flats that cooperate with complementary flats formed in the portion of said passage disposed forwardly of said shoulder to restrain relative rotation between said shank and said body whereby rotation of said shank will efiect concurrent rotation of said body; a plug seated within said body to close the rear end of said passage; and a compression spring between said plug and said head normally maintaining the front end of said shank projected beyond the new earl of mid body;

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Percussive Tools And Related Accessories (AREA)
  • Earth Drilling (AREA)

Description

y 1, 1953 P. D. CORNELIUS Re. 24,496
SPRING PLUNGER Original Filed July 13, 1955 1 40;. Z). LbQA/Euus,
INVENTOR.
Unite StatcsPatent SPRING PLUNGER Paul D. Cornelius, LosAngeles, Calif assignor, by mesne assignments, to Vlier Engineering Corporation, a corporation of Delaware Original No. 2,791,914, dated May 14, 1957, Serial No.
367,695, July 13, 1953. Application for reissue September 17, 1957, SerialNo'. 685,775
6 Claims. (Cl. 74-527) Matter enclosed in heavy brackets II] appears in the original patent but forms'no part of'this reissue specification; matter printed in italics indicates the additions made by reissue.
This invention relates to .a spring controlled locating device primarily for use in. jigs, fixtures and dies but applicable as well to other tools or machines =wher'esuch' spring controlled locating is required.
A device of this character must necessarily be extremely compact in order that it may fit into the very limited spaces within such tools, and it is at the same time essential that the spring pressure remains as nearly as possible uniform throughout the length of adjustment.
The object of my invention is to provide a locating device for jigs, fixtures and the like of simple and inexpensive construction and which is convenient to operate. A further object is to provide a device so constructed that the plunger movement thereof is very long relative to the length of the body thereof.
With these objects in view, the invention resides in the combination hereinafter fully described and illus-,
trated in the accompanying drawing of which;
Figure 1 is a side view of the device of the invention;
Figure 2 is a cross-sectional view through the axial center thereof;
Figure 3 and 4 are end views of the device; and
Figure 5 illustrates a part of the device as it appears when removed therefrom.
The structure of the invention comprises a tubular body 1, which is provided with external screw threads throughout its length. A plunger 2 is seated in this body for limited axial movement therein. The plunger is shown made with a head 3 for engagement with an internal shoulder 1 of the body. The latter is, at the opposite end, provided with internal screwthreads for re ceiving therein a screw plug 4.
The plunger 2 is first seated within the body 1 into which a spring 5 then is inserted, whereupon the plug 4 is mounted in the screwthreads of the body. The spring maintains the plunger advanced against the shoulder 1 of the body, in which position the reduced portion 6 of the plunger projects a distance beyond the end of the device.
The shape and construction of the plunger are important for the following reasons. It is necessary to provide as much space as possible for the spring in order to obtain substantially even tension thereon during the operation of the device and the head 3 of the plunger is to this end made quite thin. The reduced portion 6 of the plunger is polygonal in cross-section, having preferably six sides. When so constructed and when the plunger is of a size slidably to fit within a similar polygonal make the plunger in the manner best shown in Fig. 5.
Polygonal stock of the required size is fed into a screw machine chuckand turned down to produce the reduced shoulder portion 7. The head 3 is also made on a screw machine, out of stock of the proper diameter, whereupon it is pressed onto this shoulder portion and locked in position thereon by upsetting the end of the shoulder, substantially as shown in this view. This completes the construction of the device.
It is seen from this description that I have provided a very simple and inexpensive plunger operated locating device for jigs and fixtures which is convenient to operate. But while i have described and illustrated a preferred form of' the invention, it is to be understood that modificati'ons may be embodied therein within the scope of the claims hereto appended.
. inwardly projecting shoulder in the passage through the body near the front end thereof, the portion of the pas- ,sage in front of said shoulder being polygonal in crossthe head thereof fittingly to ride in the polygonal portion of the passage, a plug seated within the body to close the rear end of the passage, and a compression spring between said plug and the head of the plunger normally maintaining the end of the polygonal shank projected beyond the front end of the body.
2. A spring plunger comprising: a tubular body externally threaded throughout its length, there being an inwardly projecting shoulder in the passage through the body near the front end thereof, the portion of the passage in front of said shoulder being polygonal in crosssection, the rear end of the passage being internally threaded, a plunger having a cylindrical head fitted to slide within the passage and a polygonal shank extending from the head thereof fittingly to ride in the polygonal portion of the passage, an externally threaded plug seated in the threads of the passage to close the rear end of the passage, and a compression spring between said plug and the head of the plunger normally maintaining the end of the polygonal shank projected beyond the from end of the body.
3. A spring plunger comprising: a tubular body externally threaded throughout its length, there being an inwardly projecting shoulder in the passage through the body near the front end thereof, the portion of the passage in front of said shoulder being polygonal in crosssection, a plunger consisting of a polygonal shank slidably extending through the polygonal portion of the passage, an annular head of a diameter fittingly to ride within the passage, the rear end of the shank being cut down to provide a stud projecting therefrom of a diameter tightly to seat in the annular head, the head being rigidly secured in position on the stud, a plug closing the rear end of the passage, and a compression spring between said plug and the head of the plunger normally maintaining the front end of the polygonal shank projected beyond the from end of the body.
inwardly projecting shoulder in the passage through the body near the front end thereof, the portion of the passage in front of said shoulder being polygonal in crosssection, a plunger including a cylindrical head fitted to slide within the passage and a polygonal shank extending from the head thereof fittingly to ride in the polygonal portion of the passage, the front end of the shank being well rounded, a plug closing the rear end of the passage, the plug having a polygonal recess in the rear end thereof,
body near the front end thereof, the portion of the passage v in front of said shoulder being polygonal in cross-section, a plunger consisting of an annular head fitted to slide within the passage and a polygonal shank slidably extending through the polygonal portion of the passage, the front end of the shank being well rounded, the-rear end of the shank being cut down to provide a stud of-a diameter tightly to seat in the annular head, the head being rigidly secured in position on the stud, a plug closing the rear end of the passage, the plug having a polygonal recess in the rear end thereof, and a compression spring between said plug and the head of the plunger normally maintaining the front end of the polygonal shank projected beyond the front end of the body.
6. A spring plunger comprising: a tubular body externally threaded throughout its length, there being an inwardly projecting shoulder in the passage through the body near the front end thereof; a plunger having a head fitted to slide axially within said passage and a shank extending from said head fittingly to ride in the portion of said passage disposed forwardly of said shoulder, said shank being formed with wrench-receiving flats that cooperate with complementary flats formed in the portion of said passage disposed forwardly of said shoulder to restrain relative rotation between said shank and said body whereby rotation of said shank will efiect concurrent rotation of said body; a plug seated within said body to close the rear end of said passage; and a compression spring between said plug and said head normally maintaining the front end of said shank projected beyond the new earl of mid body;
' References Cited in the file of this patent 1 7 or the original patent UNITED STATES PATENTS 10,464 Day Apr. 1, 1884 579,277 Lord et a1 Mar. 23, 1897 624,017 l Hampson May 2, 1899 1,107,022 Block Aug. 11, 1914 1,560,252 Eshelman et a]. Nov. 3, 1925 1,604,340 Detrick et a1. Oct. 26, 1926 1,861,937 Philips June 7, 1932 2,221,101 Lefkowitz Nov. 12, 1940 2,297,715 'Nordstrom Oct. 6, 1942 2,348,292 Gross May 9, 1944 2,532,815 Kindsvatter Dec. 5, 1950 2,692,512 Rineer Oct. 26, 1954-
US24496D 1953-07-13 Spring plunges Expired USRE24496E (en)

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Application Number Priority Date Filing Date Title
US367695A US2791914A (en) 1953-07-13 1953-07-13 Spring plunger

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4431881A (en) 1980-01-22 1984-02-14 Siemens Aktiengesellschaft Pushbutton drive for key contacts
US20040211288A1 (en) * 2003-04-23 2004-10-28 Franze Patrick L. Ratchet assembly
US10073487B2 (en) 2014-12-21 2018-09-11 Prince Industries, Inc. Systems and methods for self-contained adjustable spring plunger bumper with high initial load and low final load

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3125045A (en) * 1964-03-17 Needle turret
DE1116471B (en) * 1958-12-15 1961-11-02 Maschf Augsburg Nuernberg Ag Attachment of the upper crankshaft bearing cap in the frame of internal combustion engines
DE1162949B (en) * 1959-11-26 1964-02-13 Siemens Ag For pressing windings for transformers and chokes used pressure screw with resilient tip
GB1013876A (en) * 1963-07-31 1965-12-22 Vauxhall Motors Ltd Chain tensioner devices
US3413870A (en) * 1966-11-10 1968-12-03 Ford Motor Co Remote control linkage mechansim for multiple ratio vehicle transmissions
US4406148A (en) * 1981-03-23 1983-09-27 The U.S. Baird Corporation Multi-station transfer press having transfer slide safety release means
US4487092A (en) * 1982-12-10 1984-12-11 Eckel Manufacturing Company, Inc. Power tong methods and apparatus
US4554818A (en) * 1983-09-01 1985-11-26 Allied Corporation Manual cable clamp closure
US4811619A (en) * 1986-09-26 1989-03-14 The United States Of America As Represented By The United States Department Of Energy Motorized control for mirror mount apparatus
DE9105258U1 (en) * 1991-04-29 1991-07-25 INA Wälzlager Schaeffler KG, 8522 Herzogenaurach Locking bolt
DE202005001660U1 (en) * 2005-02-03 2006-06-14 Dr. Hahn Gmbh & Co Kg Mounting screw for fixing fittings
JP4134994B2 (en) * 2005-03-30 2008-08-20 松下電器産業株式会社 Industrial robot
US8261424B1 (en) * 2006-08-31 2012-09-11 Northwestern Tools, Inc. Press-thru plunger and methods of manufacture and use
US20110203406A1 (en) * 2010-02-22 2011-08-25 Howmedica Osteonics Corp. One-piece ball plunger
CA3060258C (en) * 2017-04-18 2022-01-11 Burndy, LLC Conductor spacer assembly with locking feature

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US579277A (en) * 1897-03-23 William b
US624017A (en) * 1899-05-02 hampson
US1107022A (en) * 1913-01-06 1914-08-11 Samuel Block Valve.
US1560252A (en) * 1924-10-11 1925-11-03 Eshelman Herbert Lever lock
US1861937A (en) * 1930-01-04 1932-06-07 Eastman Kodak Co Presetting dial for photographic printing machines
US2221101A (en) * 1939-07-21 1940-11-12 Lefkowitz Emanuel Locking device
US2297715A (en) * 1940-06-29 1942-10-06 American Can Co Pressure regulating device
US2348292A (en) * 1943-04-08 1944-05-09 Henry R Gross Automatic latching and locking device
US2532815A (en) * 1947-08-29 1950-12-05 Hagerstown Engineering Company Special lock screw

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4431881A (en) 1980-01-22 1984-02-14 Siemens Aktiengesellschaft Pushbutton drive for key contacts
US20040211288A1 (en) * 2003-04-23 2004-10-28 Franze Patrick L. Ratchet assembly
US7506562B2 (en) * 2003-04-23 2009-03-24 Randolph Tool Company, Inc. Ratchet assembly
US10073487B2 (en) 2014-12-21 2018-09-11 Prince Industries, Inc. Systems and methods for self-contained adjustable spring plunger bumper with high initial load and low final load

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US2791914A (en) 1957-05-14

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