US3094007A - Equalizer slide means - Google Patents

Equalizer slide means Download PDF

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Publication number
US3094007A
US3094007A US153170A US15317061A US3094007A US 3094007 A US3094007 A US 3094007A US 153170 A US153170 A US 153170A US 15317061 A US15317061 A US 15317061A US 3094007 A US3094007 A US 3094007A
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United States
Prior art keywords
slide means
equalizer
table top
rails
equalizer slide
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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 - Lifetime
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US153170A
Inventor
Gilbert W Luhrs
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Sears Roebuck and Co
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Sears Roebuck and Co
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Publication date
Application filed by Sears Roebuck and Co filed Critical Sears Roebuck and Co
Priority to US153170A priority Critical patent/US3094007A/en
Application granted granted Critical
Publication of US3094007A publication Critical patent/US3094007A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
    • A47B1/00—Extensible tables
    • A47B1/10—Slide mechanisms
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
    • A47B1/00—Extensible tables
    • A47B1/10—Slide mechanisms
    • A47B2001/105—Slide mechanisms with rack and pinion gearing
    • 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
    • Y10T74/19—Gearing
    • Y10T74/19642—Directly cooperating gears
    • Y10T74/1967—Rack and pinion

Definitions

  • My invention relates to improvements in equalizer slide means employed in tables of the type in which the table top sections are separable to permit insertion of extra leaves in order to extend the size or the table top.
  • Equalizer slide means have been employed heretofore -i-n connection with separable table top sections, but in order to separate such sections it required two per sons to grasp opposite sections Iand draw the same apart. Frequently, in the course of such an operation because of high humidity conditions, the relatively slid-'mg rails and guide members supporting the table top sections would swell and stick with the result that the entire table would be shifted or moved from its position.
  • crank means associ-ated with the equalizer slide means whereby ⁇ the table top sections may be ⁇ separated easily by a single individual merely operating the crank means.
  • FIG. 1 is a top plan View of an equalizer slide assembly in accordance with my invention, the same being shown in extended position.
  • FIG. 2 is fa similar v-iew but showing the equalizer slide assembly in normal closed or contracted position.
  • FIG. 3 is a side elevational view od? the equalizer slide assembly illustrated in FIG. l in extended position.
  • FIG. 4 is a vertical cross-sectional view on an enlarged scale taken substantially on line 4-4 of FIG. 3 but showing the operating Icrank handle -at a position 90 from that illustrated in FIG. 3.
  • the numeral indicates a ifragmentary portion of a frame member which extends longitudinally of the table frame and substantially medially thereof.
  • llhe member 10 is shown ⁇ as being of tubular form but it is to be understood that it may be of any suitable conventional form.
  • Supported on the member ⁇ 10 and secured thereto as by bolts or screws r11 is an intermediate member y12.
  • the opposite vertical faces of the member ⁇ 12 are rabbetted to atford longitudinally extending grooves 13 as illustrated.
  • Sliding rails 114 and l15 are arranged in confronting relation to the respective vertical sides of the member ⁇ 12 and each of the rails is provided with a longitudinally extending complementary projection 13a 4arranged to be received within a respective Ygroove 13.
  • the rails y114 and 115 are adapted for longitudinal sliding movement relative to the member 12.
  • each of ⁇ the rails ⁇ 14 and 15 is recessed to accommodate a section of a gear rack, ⁇ the racks being identified by the numerals 16 and ⁇ 17, respectively.
  • the teeth of the racks are directed inwardly towards each other and are ⁇ arranged to engage with .
  • the assembly hereinabove described is mounted on the frame member 10 so that the axis of pinion ⁇ 18 coincides substantially with the midpoint of said frame member which corresponds to the median line at which the table top sections 23 ⁇ and 24 illustrated by the broken lines will meet when .the sections are in normal clo-sed position ⁇ as illustrated in FIG. 2.
  • the table top sections are of the oating type in that section 23 is suitably secured to rail 14 While the other section 24 is correspondingly secured to rail 15. As will be apparent the table top sections move ⁇ simultaneously with corresponding rails.
  • the pinion 118 is correspondingly rotated and cooperates with the lgear racks 116 and 1-7 to move the table top sections 23 and 24 to the open position illustrated by the broken lines in rFlG. vl, or to the closed position illustrated in FIG. 2.
  • the crank arm ⁇ 21 being mounted on the shaft 11 which is disposed substantially centrally of the table trame does not interfere with the seating of any individual at the table, since even in the position illustrated in the FIGS. 1 and 2 the arm 21 is -suiciently short to avoid being touched by the knees of any individual sitting in close proximity to the arm.
  • eachl rail member y having a lonm'tudinally eX- tending projection received in a respective rabbet

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  • Transmission Devices (AREA)

Description

June 18, 1963 G. w. LUHRs 3,094,007
EQUALIZER SLIDE MEANS Filed Nov. 17, 1961 United States Patent @tice 3,094,007 Patented June 18, 1963 Filed Nov. 17, 1961, Ser. No. 153,170 1 Claim. (Cl. 74-91) My invention relates to improvements in equalizer slide means employed in tables of the type in which the table top sections are separable to permit insertion of extra leaves in order to extend the size or the table top.
Equalizer slide means have been employed heretofore -i-n connection with separable table top sections, but in order to separate such sections it required two per sons to grasp opposite sections Iand draw the same apart. Frequently, in the course of such an operation because of high humidity conditions, the relatively slid-'mg rails and guide members supporting the table top sections would swell and stick with the result that the entire table would be shifted or moved from its position.
Accordingly, it is 1an object of my invention to provide crank means associ-ated with the equalizer slide means whereby `the table top sections may be `separated easily by a single individual merely operating the crank means.
Other land further objects and advantages of my invention will become apparent from the following description when the same is considered in connection with the accompanying drawings in which,
FIG. 1 is a top plan View of an equalizer slide assembly in accordance with my invention, the same being shown in extended position.
FIG. 2 is fa similar v-iew but showing the equalizer slide assembly in normal closed or contracted position.
FIG. 3 is a side elevational view od? the equalizer slide assembly illustrated in FIG. l in extended position.
FIG. 4 is a vertical cross-sectional view on an enlarged scale taken substantially on line 4-4 of FIG. 3 but showing the operating Icrank handle -at a position 90 from that illustrated in FIG. 3.
Referring to the drawings, the numeral indicates a ifragmentary portion of a frame member which extends longitudinally of the table frame and substantially medially thereof. llhe member 10 is shown `as being of tubular form but it is to be understood that it may be of any suitable conventional form. Supported on the member `10 and secured thereto as by bolts or screws r11 is an intermediate member y12. The opposite vertical faces of the member `12 are rabbetted to atford longitudinally extending grooves 13 as illustrated. Sliding rails 114 and l15 are arranged in confronting relation to the respective vertical sides of the member `12 and each of the rails is provided with a longitudinally extending complementary projection 13a 4arranged to be received within a respective Ygroove 13. The rails y114 and 115 are adapted for longitudinal sliding movement relative to the member 12.
A portion of the upper surface of each of `the rails `14 and 15 is recessed to accommodate a section of a gear rack, `the racks being identified by the numerals 16 and `17, respectively. The racks 'are secured to the respective rails as by screws or other suitable fastening means. As will be apparent by reference to FIGS. 1 and 2, the teeth of the racks are directed inwardly towards each other and are `arranged to engage with .a pinion 418 vfixed on a shaft 1\9 passing through the members 10 Iand 12. The shaftr'19 projects below the member 10 and a crank arm 21 provided with a knob 2-2 is rigidly secured to the extension of shaft `19. =It will be apparent that rotation of the shaft 19 by means of the crank arm 21 will elect rotation of the pinion 1=8 with a consequent relative longitudinal movement oi the rails 14 and l15.
It will be understood that the assembly hereinabove described is mounted on the frame member 10 so that the axis of pinion `18 coincides substantially with the midpoint of said frame member which corresponds to the median line at which the table top sections 23` and 24 illustrated by the broken lines will meet when .the sections are in normal clo-sed position `as illustrated in FIG. 2. The table top sections are of the oating type in that section 23 is suitably secured to rail 14 While the other section 24 is correspondingly secured to rail 15. As will be apparent the table top sections move `simultaneously with corresponding rails. Thus, merely by a single individual operating the crank arm 21 and rotating the same in one direction or another, the pinion 118 is correspondingly rotated and cooperates with the lgear racks 116 and 1-7 to move the table top sections 23 and 24 to the open position illustrated by the broken lines in rFlG. vl, or to the closed position illustrated in FIG. 2. The crank arm `21 being mounted on the shaft 11 which is disposed substantially centrally of the table trame does not interfere with the seating of any individual at the table, since even in the position illustrated in the FIGS. 1 and 2 the arm 21 is -suiciently short to avoid being touched by the knees of any individual sitting in close proximity to the arm.
Vari-ous changes coming the spirit of my invention may suggest .themselves to those skilled in the art; hence, l do not wish to be limited to the speciiic embodiments shown and described or uses mentioned, but intend .the same to be merely exemplary, the scope of my invention being limited only by the appended claim.
I claim:
In combination,
(a) an elongated stationary member, the opposite vertical sides each having a rabbet extending longitudinally thereof,
(b) a pair of rail members arranged in slideable abutment to `said stationary member one on each side thereof,
(c) eachl rail member yhaving a lonm'tudinally eX- tending projection received in a respective rabbet,
(d) a gear rack secu-red .to the upper surface of each rail member with the teeth of said racks disposed horizontally and in confronting relation to each other,
(e) la vertical shatt rotatably supported in said stationary member,
(f) la pinion iixed on said shaft and engaging at opposite sides with the gear racks on the respective rail members,
(g) and a crank arm connected to said shaft for ro- .tating said pinion to cause the rail members to move simultaneously in opposite directions.
References Cited in the iile of this patent UNITED STATES PATENTS 117,659 McKnight Aug. 1, 1871 992,066 Roberts May 9, 1911 1,128,808 Manoogian Feb. 16, 1915 1,173,646 Blue Feb. 29, 1916 1,307,808 Clark lune 24, 1919 y1,479,805 Gutridge Ian. 8, 1924 1,915,686 Mendenhall June 27, 1933 2,002,576 Holland et al May 28, 1935 2,566,800 Hutcherson Sept. 4, 1951
US153170A 1961-11-17 1961-11-17 Equalizer slide means Expired - Lifetime US3094007A (en)

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Cited By (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4035990A (en) * 1975-01-08 1977-07-19 A Campton & Sons Company Limited Wrapping machine
US4098056A (en) * 1975-08-22 1978-07-04 Glory Kogyo Kabushiki Kaisha Coin passage device of a coin processing machine
US4630701A (en) * 1984-04-06 1986-12-23 Lokari-Tuote Oy Vehicle steering mechanism
US5441325A (en) * 1993-07-07 1995-08-15 Prince Corporation Vanity mirror with opposed sliding covers
USRE35622E (en) * 1992-10-14 1997-10-07 Lear Corporation Dual synchronous opening mirror doors for sun visors
US5735220A (en) * 1996-12-16 1998-04-07 Wang; Ming-Cheng Slide rails of extensible table
EP0841026A2 (en) * 1996-11-06 1998-05-13 Atim S.p.A. Guiding device for two parts which can move with respect to each other in opposite directions, particularly for pieces of furniture or the like
US5881601A (en) * 1992-07-13 1999-03-16 Hammer; Mordechai Extendible and retractable reaching tool
DE19926882A1 (en) * 1999-06-12 2000-12-14 Roland Gschwendtner Extension system to cover guide path of work tool; has telescopically closing and opening extension elements coupled using one or more toothed rods, operated by gear arrangement
EP1177746A1 (en) * 2000-08-01 2002-02-06 Mwh Metallwerk Helmstadt Gmbh Extensible table with movable panels
DE202004001614U1 (en) * 2004-02-03 2004-06-09 Trw Automotive Gmbh Actuator, especially for a chassis
US20080209809A1 (en) * 2004-07-15 2008-09-04 Georgios Petridis Wall-mounted sliding door system and method
US20100303552A1 (en) * 2009-05-27 2010-12-02 American Piledriving Equipment, Inc. Helmet adapter for pile drivers
US20110081208A1 (en) * 2000-08-01 2011-04-07 American Piledriving Equipment, Inc. Automatically adjustable caisson clamp
US20110162859A1 (en) * 2010-01-06 2011-07-07 White John L Pile driving systems and methods employing preloaded drop hammer
US20120174488A1 (en) * 2011-01-12 2012-07-12 Chen Chang Technology Co., Ltd. Linking-Up Ventilation Door/Window Panel Structure
EP2551577A2 (en) * 2011-07-26 2013-01-30 Hyundai Mobis Co., Ltd. Double rack gear structure for supporting pop-up monitor
US20130093182A1 (en) * 2011-10-18 2013-04-18 Fischer Rohrtechnik Gmbh Vacuum cleaner suction pipe
US8434969B2 (en) 2010-04-02 2013-05-07 American Piledriving Equipment, Inc. Internal pipe clamp
US8496072B2 (en) 2002-09-17 2013-07-30 American Piledriving Equipment, Inc. Preloaded drop hammer for driving piles
US20130285363A1 (en) * 2011-10-18 2013-10-31 Fischer Rohrtechnik Gmbh Vacuum cleaner suction pipe
US20150257978A1 (en) * 2014-03-17 2015-09-17 Teresa Y. Smith Multiple pill cutter
US9249551B1 (en) 2012-11-30 2016-02-02 American Piledriving Equipment, Inc. Concrete sheet pile clamp assemblies and methods and pile driving systems for concrete sheet piles
US9371624B2 (en) 2013-07-05 2016-06-21 American Piledriving Equipment, Inc. Accessory connection systems and methods for use with helical piledriving systems
US20160236710A1 (en) * 2013-09-26 2016-08-18 Ntn Corporation Steering device
US20170055780A1 (en) * 2015-09-01 2017-03-02 Artika for Living Inc. Vertically Adjustable Shower Caddy and Method for Tensioning Same
US10273646B2 (en) 2015-12-14 2019-04-30 American Piledriving Equipment, Inc. Guide systems and methods for diesel hammers
US10538892B2 (en) 2016-06-30 2020-01-21 American Piledriving Equipment, Inc. Hydraulic impact hammer systems and methods
US12036161B2 (en) 2019-08-16 2024-07-16 Stryker Corporation Patient support with deck width monitoring and control

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US117659A (en) * 1871-08-01 Improvement in extension tables
US992066A (en) * 1910-04-26 1911-05-09 Elijah J Roberts Extension-table.
US1128808A (en) * 1914-05-18 1915-02-16 Harry Enochian Extension-table.
US1173646A (en) * 1913-06-27 1916-02-29 Wilbert F Blue Extension-table.
US1307808A (en) * 1919-06-24 Table opening ahd closing device
US1479805A (en) * 1922-04-26 1924-01-08 Eldon A Gutridge Extension table
US1915686A (en) * 1931-06-23 1933-06-27 Elbert V Mendenhall Table-slide means
US2002576A (en) * 1933-09-05 1935-05-28 Robert A Holland Extension table
US2566800A (en) * 1948-06-09 1951-09-04 Hutcherson Archie Center extension table

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US117659A (en) * 1871-08-01 Improvement in extension tables
US1307808A (en) * 1919-06-24 Table opening ahd closing device
US992066A (en) * 1910-04-26 1911-05-09 Elijah J Roberts Extension-table.
US1173646A (en) * 1913-06-27 1916-02-29 Wilbert F Blue Extension-table.
US1128808A (en) * 1914-05-18 1915-02-16 Harry Enochian Extension-table.
US1479805A (en) * 1922-04-26 1924-01-08 Eldon A Gutridge Extension table
US1915686A (en) * 1931-06-23 1933-06-27 Elbert V Mendenhall Table-slide means
US2002576A (en) * 1933-09-05 1935-05-28 Robert A Holland Extension table
US2566800A (en) * 1948-06-09 1951-09-04 Hutcherson Archie Center extension table

Cited By (40)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4035990A (en) * 1975-01-08 1977-07-19 A Campton & Sons Company Limited Wrapping machine
US4098056A (en) * 1975-08-22 1978-07-04 Glory Kogyo Kabushiki Kaisha Coin passage device of a coin processing machine
US4630701A (en) * 1984-04-06 1986-12-23 Lokari-Tuote Oy Vehicle steering mechanism
US5881601A (en) * 1992-07-13 1999-03-16 Hammer; Mordechai Extendible and retractable reaching tool
USRE35622E (en) * 1992-10-14 1997-10-07 Lear Corporation Dual synchronous opening mirror doors for sun visors
US5441325A (en) * 1993-07-07 1995-08-15 Prince Corporation Vanity mirror with opposed sliding covers
EP0841026A2 (en) * 1996-11-06 1998-05-13 Atim S.p.A. Guiding device for two parts which can move with respect to each other in opposite directions, particularly for pieces of furniture or the like
EP0841026A3 (en) * 1996-11-06 2000-09-20 Atim S.p.A. Guiding device for two parts which can move with respect to each other in opposite directions, particularly for pieces of furniture or the like
US5735220A (en) * 1996-12-16 1998-04-07 Wang; Ming-Cheng Slide rails of extensible table
DE19926882A1 (en) * 1999-06-12 2000-12-14 Roland Gschwendtner Extension system to cover guide path of work tool; has telescopically closing and opening extension elements coupled using one or more toothed rods, operated by gear arrangement
EP1177746A1 (en) * 2000-08-01 2002-02-06 Mwh Metallwerk Helmstadt Gmbh Extensible table with movable panels
US20110081208A1 (en) * 2000-08-01 2011-04-07 American Piledriving Equipment, Inc. Automatically adjustable caisson clamp
US8496072B2 (en) 2002-09-17 2013-07-30 American Piledriving Equipment, Inc. Preloaded drop hammer for driving piles
DE202004001614U1 (en) * 2004-02-03 2004-06-09 Trw Automotive Gmbh Actuator, especially for a chassis
US20070040340A1 (en) * 2004-02-03 2007-02-22 Dirk Kesselgruber Actuator, in particular for a chassis
DE112005000207B4 (en) * 2004-02-03 2010-07-29 Trw Automotive Gmbh Actuator, in particular for a chassis
US20080209809A1 (en) * 2004-07-15 2008-09-04 Georgios Petridis Wall-mounted sliding door system and method
US7762020B2 (en) * 2004-07-15 2010-07-27 Masonite Corporation Wall-mounted sliding door system and method
US20100303552A1 (en) * 2009-05-27 2010-12-02 American Piledriving Equipment, Inc. Helmet adapter for pile drivers
US20110162859A1 (en) * 2010-01-06 2011-07-07 White John L Pile driving systems and methods employing preloaded drop hammer
US8763719B2 (en) 2010-01-06 2014-07-01 American Piledriving Equipment, Inc. Pile driving systems and methods employing preloaded drop hammer
US8434969B2 (en) 2010-04-02 2013-05-07 American Piledriving Equipment, Inc. Internal pipe clamp
US20120174488A1 (en) * 2011-01-12 2012-07-12 Chen Chang Technology Co., Ltd. Linking-Up Ventilation Door/Window Panel Structure
EP2551577A2 (en) * 2011-07-26 2013-01-30 Hyundai Mobis Co., Ltd. Double rack gear structure for supporting pop-up monitor
EP2551577A3 (en) * 2011-07-26 2014-05-21 Hyundai Mobis Co., Ltd. Double rack gear structure for supporting pop-up monitor
US8967011B2 (en) 2011-07-26 2015-03-03 Hyundai Mobis Co., Ltd. Double rack gear structure for supporting pop-up monitor
US20130093182A1 (en) * 2011-10-18 2013-04-18 Fischer Rohrtechnik Gmbh Vacuum cleaner suction pipe
US8894099B2 (en) * 2011-10-18 2014-11-25 Fischer Rohrtechnik Gmbh Vacuum cleaner suction pipe
US20130285363A1 (en) * 2011-10-18 2013-10-31 Fischer Rohrtechnik Gmbh Vacuum cleaner suction pipe
US9249551B1 (en) 2012-11-30 2016-02-02 American Piledriving Equipment, Inc. Concrete sheet pile clamp assemblies and methods and pile driving systems for concrete sheet piles
US9371624B2 (en) 2013-07-05 2016-06-21 American Piledriving Equipment, Inc. Accessory connection systems and methods for use with helical piledriving systems
US20160236710A1 (en) * 2013-09-26 2016-08-18 Ntn Corporation Steering device
US10023228B2 (en) * 2013-09-26 2018-07-17 Ntn Corporation Steering device
US9314405B2 (en) * 2014-03-17 2016-04-19 Teresa Y. Smith Multiple pill cutter
US20150257978A1 (en) * 2014-03-17 2015-09-17 Teresa Y. Smith Multiple pill cutter
US20170055780A1 (en) * 2015-09-01 2017-03-02 Artika for Living Inc. Vertically Adjustable Shower Caddy and Method for Tensioning Same
US9808125B2 (en) * 2015-09-01 2017-11-07 Artika for Living Inc. Vertically adjustable shower caddy and method for tensioning same
US10273646B2 (en) 2015-12-14 2019-04-30 American Piledriving Equipment, Inc. Guide systems and methods for diesel hammers
US10538892B2 (en) 2016-06-30 2020-01-21 American Piledriving Equipment, Inc. Hydraulic impact hammer systems and methods
US12036161B2 (en) 2019-08-16 2024-07-16 Stryker Corporation Patient support with deck width monitoring and control

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