WO1991014384A1 - Forearm support - Google Patents

Forearm support Download PDF

Info

Publication number
WO1991014384A1
WO1991014384A1 PCT/SE1991/000202 SE9100202W WO9114384A1 WO 1991014384 A1 WO1991014384 A1 WO 1991014384A1 SE 9100202 W SE9100202 W SE 9100202W WO 9114384 A1 WO9114384 A1 WO 9114384A1
Authority
WO
WIPO (PCT)
Prior art keywords
arm section
pivotal
pivotal arm
forearm
holder
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.)
Ceased
Application number
PCT/SE1991/000202
Other languages
French (fr)
Inventor
Lennart Gutke
Runo Scott
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of WO1991014384A1 publication Critical patent/WO1991014384A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • 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
    • A47B21/00—Tables or desks for office equipment, e.g. typewriters, keyboards
    • A47B21/03—Tables or desks for office equipment, e.g. typewriters, keyboards with substantially horizontally extensible or adjustable parts other than drawers, e.g. leaves
    • A47B21/0371—Platforms for supporting wrists
    • 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
    • F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
    • F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters
    • F16M11/02—Heads
    • F16M11/04—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand
    • F16M11/06—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand allowing pivoting
    • F16M11/08—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand allowing pivoting around a vertical axis, e.g. panoramic heads
    • 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
    • F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
    • F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters
    • F16M11/20—Undercarriages with or without wheels
    • F16M11/2007—Undercarriages with or without wheels comprising means allowing pivoting adjustment
    • F16M11/2035—Undercarriages with or without wheels comprising means allowing pivoting adjustment in more than one direction
    • F16M11/2071—Undercarriages with or without wheels comprising means allowing pivoting adjustment in more than one direction for panning and rolling
    • 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
    • F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
    • F16M13/00—Other supports for positioning apparatus or articles; Means for steadying hand-held apparatus or articles
    • F16M13/02—Other supports for positioning apparatus or articles; Means for steadying hand-held apparatus or articles for supporting on, or attaching to, an object, e.g. tree, gate, window-frame, cycle
    • F16M13/022—Other supports for positioning apparatus or articles; Means for steadying hand-held apparatus or articles for supporting on, or attaching to, an object, e.g. tree, gate, window-frame, cycle repositionable
    • 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
    • A47B2200/00—General construction of tables or desks
    • A47B2200/0084—Accessories for tables or desks
    • A47B2200/0092—Articulated arm used as wrist support

Definitions

  • the invention concerns a support on which the forearm of a person operating a computer, a typewriter or performing other desktop operations, may rest during the work.
  • Devices for this purpose consisting of a first pivotal arm section which is secured to a table-top mounted holder and which is arranged for pivotal movement about a vertical shaft.
  • a second pivotal arm section which is mounted on the first pivotal arm section, is arranged for pivotal movement in a horizontal plane about the outer end of the first pivotal arm section and is provided with a support element on which rests the forearm of a person working at the table-top.
  • a forearm support of this kind With the aid of a forearm support of this kind, one on either side, persons working e.g. with computer terminals, may avoid that certain groups of muscles are exposed to unbalanced load with resulting musculo-skeletal disorders, an affliction of which hitherto a large number of individuals have been the victims.
  • the various types of supports available on the market comprise a pivotal arm section consisting of two parallel arms. In order to set the support proper at the vertical position which corresponds to the correct and appropriate working position for the individual user, the pivotal arm section is adjustable with the aid of one or a couple of set screws.
  • the number of possible positioning variations vertically are comparatively limited, which is often rather unsatisfactory, particularly when, as often is the case with computers, the keyboard is positioned in a lower-level recess formed in the supporting table-top o when the keyboard is positioned on an extension table top.
  • Fig. 1 is a perspective view of the forearm support in use, and Fig. 2 shows the support in a lateral view in a certain vertical position with another, alternative vertical position being indicated in dash-and-dot lines.
  • a support holder 2 is mounted on a table top 1.
  • the support holder 2 comprises a C-clamp of a structure generally known per se and comprising two legs 3 and 4 which are joined together by a screw 5.
  • An extra through hole 6 makes it possible to obtain a position of adjustment with a wider spacing between the legs 3, 4.
  • a tightening screw 7 in threaded engagement with the clamp leg 4 secures the holder 2 to the table top 1.
  • first pivotal arm section 8 in accordance with the invention for pivotal movement about a vertical shaft 9.
  • the pivotal arm section 8 is formed with housings 10, 11, one at each end of the pivotal arm 12 proper.
  • the pivotal arm 12 is mounted in said housings 10, 11 so as to be pivoted and lockable therein in any desired angular position by means of a cone member 13 (only one of which is illustrated) and a tightening screw 14.
  • the pivotal arm 12 comprises two mutually parallel end portions 15, 16 and an intermediate portion 17 extending obliquely between the two end portions 15, 16. Owing to this configuration, it becomes possible, when the end portions 15, 16 are turned in their respective bearing housing 10, 11, to raise or lower the outer extremity portion to the desired vertical level between the maximum highest and the maximum lowest positions.
  • a further housing 18 In the latter is received one end of a second pivotal arm section 19 which is arranged for pivotal movement to the desired angular position relatively to the first pivotal arm section 8 and which is provided on its outer end with a forearm support element 20 arranged for turning movement.
  • the support element preferably has a dish-shaped configuration in order to provide some support also laterally during pivotal movements.
  • a person who is operating a keyboard may relieve the load on his neck and shoulder muscles in a very efficient manner.
  • the screw 14 is unscrewed, thus untightening of the cone 13 somewhat.
  • the same procedure is used as regards the housing 10.
  • the pivotal arm 12 is then turned in one or the other direction in such a manner that the pivotal arm section 19 together with the forearm support element 20 are raised o lowered, according to wish.
  • the end portions 15, 16 are again locked in position in their respective one of housings 10, 11.
  • the device in accordance with the invention is easy to handle due to its simple and uncomplicated structure and it may be manufactured at comparatively low costs.
  • the design of the device is, however, not limited to that illustrated in the drawings but may be varied in many ways within the scope of the appended claims.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Pivots And Pivotal Connections (AREA)
  • Orthopedics, Nursing, And Contraception (AREA)

Abstract

A forearm support intended for use in connection with e.g. desk work, consists of a first pivotal arm section (8) which is secured to a holder (2) mounted on a table top (1), and of a second pivotal arm section (19) which is connected to the first pivotal arm section (8) and is provided with a forearm support element (20). The two pivotal arm sections (8, 19) are arranged for mutual pivotal movements and for pivotal movements relatively to the holder (2). The first pivotal arm section (8) comprises an arm (12) having two mutually parallel end portions (15, 16) and an obliquely extending intermediate arm portion (17) interconnecting the two end portions. The two portions (15, 16) are rotatably mounted so as to be set and locked in the desired angular position in their respective one of housings (10, 11) which serve as pivot joints.

Description

FOREARM SUPPORT
The invention concerns a support on which the forearm of a person operating a computer, a typewriter or performing other desktop operations, may rest during the work.
Devices for this purpose are known consisting of a first pivotal arm section which is secured to a table-top mounted holder and which is arranged for pivotal movement about a vertical shaft. A second pivotal arm section which is mounted on the first pivotal arm section, is arranged for pivotal movement in a horizontal plane about the outer end of the first pivotal arm section and is provided with a support element on which rests the forearm of a person working at the table-top.
With the aid of a forearm support of this kind, one on either side, persons working e.g. with computer terminals, may avoid that certain groups of muscles are exposed to unbalanced load with resulting musculo-skeletal disorders, an affliction of which hitherto a large number of individuals have been the victims. The various types of supports available on the market comprise a pivotal arm section consisting of two parallel arms. In order to set the support proper at the vertical position which corresponds to the correct and appropriate working position for the individual user, the pivotal arm section is adjustable with the aid of one or a couple of set screws. However, the number of possible positioning variations vertically are comparatively limited, which is often rather unsatisfactory, particularly when, as often is the case with computers, the keyboard is positioned in a lower-level recess formed in the supporting table-top o when the keyboard is positioned on an extension table top. However, it is all important, in order to achieve the adequate load relief on the forearm and as a result thereof on the neck and shoulders that one aims for, that it is possible to set the support in the correct vertical position that brings about this relief.
This is obtained in accordance with the invention by means of a device which is of a more simple construction than prior-art constructions and which allows more convenient and quicker positioning maneouvres in order to achieve the optimum vertical height position in which the forearm support provides maximum load relief. The characterising features of this device appear from the appended claims. The invention will be described in closer detail in the following with reference to the accompanying drawings, wherein
Fig. 1 is a perspective view of the forearm support in use, and Fig. 2 shows the support in a lateral view in a certain vertical position with another, alternative vertical position being indicated in dash-and-dot lines. A support holder 2 is mounted on a table top 1. The support holder 2 comprises a C-clamp of a structure generally known per se and comprising two legs 3 and 4 which are joined together by a screw 5. An extra through hole 6 makes it possible to obtain a position of adjustment with a wider spacing between the legs 3, 4. A tightening screw 7 in threaded engagement with the clamp leg 4 secures the holder 2 to the table top 1.
On clamp leg 3 is mounted a first pivotal arm section 8 in accordance with the invention for pivotal movement about a vertical shaft 9. The pivotal arm section 8 is formed with housings 10, 11, one at each end of the pivotal arm 12 proper. The pivotal arm 12 is mounted in said housings 10, 11 so as to be pivoted and lockable therein in any desired angular position by means of a cone member 13 (only one of which is illustrated) and a tightening screw 14. In accordance with the invention, the pivotal arm 12 comprises two mutually parallel end portions 15, 16 and an intermediate portion 17 extending obliquely between the two end portions 15, 16. Owing to this configuration, it becomes possible, when the end portions 15, 16 are turned in their respective bearing housing 10, 11, to raise or lower the outer extremity portion to the desired vertical level between the maximum highest and the maximum lowest positions.
To the outer housing 11 is securely attached a further housing 18. In the latter is received one end of a second pivotal arm section 19 which is arranged for pivotal movement to the desired angular position relatively to the first pivotal arm section 8 and which is provided on its outer end with a forearm support element 20 arranged for turning movement. The support element preferably has a dish-shaped configuration in order to provide some support also laterally during pivotal movements.
By using this equipment a person who is operating a keyboard, for instance as illustrated in Fig. 1, may relieve the load on his neck and shoulder muscles in a very efficient manner. In order to adjust the vertical position of the forearm support element the screw 14 is unscrewed, thus untightening of the cone 13 somewhat. The same procedure is used as regards the housing 10. The pivotal arm 12 is then turned in one or the other direction in such a manner that the pivotal arm section 19 together with the forearm support element 20 are raised o lowered, according to wish. When the desired position of adjustment is obtained, the end portions 15, 16 are again locked in position in their respective one of housings 10, 11.
It is likewise possible, having initially set the forearm support element 20 roughly in the desired vertica position to tighten the screw 14 only slightly, so that following a check of the vertical position further turnin of the pivotal arm 13 may be done with frictional resistance. In this way it becomes possible to obtain satisfactory adjustment rapidly and conveniently without risk that the desired position inadvertently is altered as the screw 14 is tightened to its home position.
The device in accordance with the invention is easy to handle due to its simple and uncomplicated structure and it may be manufactured at comparatively low costs. The design of the device is, however, not limited to that illustrated in the drawings but may be varied in many ways within the scope of the appended claims.

Claims

1. A forearm support for use in connection with e.g. desk work, said support consisting of a first pivotal arm section (8) which is secured to a holder (2) mounted on a table top (1) and which is arranged for pivotal movement relatively to the holder (2) about a vertical shaft (9), and of a second pivotal arm section (19) which is mounted on the first pivotal arm section (8 for pivotal movement in a horizontal plane about the oute end of the first pivotal arm section (8) and provided wit a support element (20) which supports the forearm of a person working at the table top (1), c h a r a c t e r¬ i z e d in that the first pivotal arm section (8) consists of an arm (12) having two mutually parallel end portions (15, 16) and an intermediate portion (17) extending obliquely between the end portions, said two en portions (15, 16) being rotationally journalled in their respective one of two pivot joints (10, 11) and arranged to be retained in said joints in different angular positions.
2. A forearm support as claimed in claim 1, c h a r¬ a c t e r i z e d in that the pivot joints (10, 11) may be set to allow arbitrary frictional resistance turning movement of the associated end portion (15, 16) in said joints (10, 11).
PCT/SE1991/000202 1990-03-21 1991-03-18 Forearm support Ceased WO1991014384A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE9001006-7 1990-03-21
SE9001006A SE464740B (en) 1990-03-21 1990-03-21 FORMER SUPPORT DEVICE FOR USE IN DESK WORK O 1

Publications (1)

Publication Number Publication Date
WO1991014384A1 true WO1991014384A1 (en) 1991-10-03

Family

ID=20378928

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/SE1991/000202 Ceased WO1991014384A1 (en) 1990-03-21 1991-03-18 Forearm support

Country Status (3)

Country Link
AU (1) AU7548591A (en)
SE (1) SE464740B (en)
WO (1) WO1991014384A1 (en)

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5288042A (en) * 1992-08-12 1994-02-22 Ergodyne Corporation Wrist rest support system
WO1994028763A1 (en) * 1993-06-07 1994-12-22 Top Cousins Oy Mouse support
US5385322A (en) * 1993-10-01 1995-01-31 Baxter International Inc. Ergonomic elbow rest
EP0639431A1 (en) * 1993-07-31 1995-02-22 Rainer Schmidt Support assembly
WO1995034780A1 (en) * 1994-06-10 1995-12-21 Westinghouse Electric Corporation Locking universal support arm
US5522572A (en) * 1994-06-10 1996-06-04 Westinghouse Electric Corporation Support apparatus with dual palm rests for keyboards and the like
US5564667A (en) * 1994-06-10 1996-10-15 Knoll, Inc. Locking universal support arm
WO1996037128A1 (en) * 1995-05-24 1996-11-28 Top-Cousins Oy Mouse pad
DE19645472A1 (en) * 1996-10-26 1998-04-30 I S I S Ingenieur Seminar Fuer Method to form stable excavation in soil and unconsolidated ground
US6109571A (en) * 1995-12-07 2000-08-29 Hirschovits; Adiel Mouse support
FR2906120A1 (en) * 2006-09-22 2008-03-28 Jean Francois Dignat Armrest for computer system, has ball bearing runner with proximal part fixed to rack or support, where inclination of runner is modified by selecting fixation holes on desktop to preadjust height and distance of support device
DE102017110147A1 (en) * 2017-05-10 2018-11-15 Gefa Nägler Arm relief and support device
US10792183B2 (en) 2011-10-06 2020-10-06 Saebo, Inc. Mobile arm support

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH268129A (en) * 1948-11-09 1950-05-15 Wieland Elisabeth Hospital table.

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH268129A (en) * 1948-11-09 1950-05-15 Wieland Elisabeth Hospital table.

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5288042A (en) * 1992-08-12 1994-02-22 Ergodyne Corporation Wrist rest support system
GB2294390B (en) * 1993-06-07 1997-09-17 Top Cousins Oy Mouse support
WO1994028763A1 (en) * 1993-06-07 1994-12-22 Top Cousins Oy Mouse support
GB2294390A (en) * 1993-06-07 1996-05-01 Top Cousins Oy Mouse support
US5984244A (en) * 1993-06-07 1999-11-16 Hirschovits; Adiel Mouse support
EP0639431A1 (en) * 1993-07-31 1995-02-22 Rainer Schmidt Support assembly
US5385322A (en) * 1993-10-01 1995-01-31 Baxter International Inc. Ergonomic elbow rest
WO1995034780A1 (en) * 1994-06-10 1995-12-21 Westinghouse Electric Corporation Locking universal support arm
US5564667A (en) * 1994-06-10 1996-10-15 Knoll, Inc. Locking universal support arm
US5683064A (en) * 1994-06-10 1997-11-04 Knoll, Inc. Locking universal support arm
US5522572A (en) * 1994-06-10 1996-06-04 Westinghouse Electric Corporation Support apparatus with dual palm rests for keyboards and the like
WO1996037128A1 (en) * 1995-05-24 1996-11-28 Top-Cousins Oy Mouse pad
US6109571A (en) * 1995-12-07 2000-08-29 Hirschovits; Adiel Mouse support
DE19645472A1 (en) * 1996-10-26 1998-04-30 I S I S Ingenieur Seminar Fuer Method to form stable excavation in soil and unconsolidated ground
FR2906120A1 (en) * 2006-09-22 2008-03-28 Jean Francois Dignat Armrest for computer system, has ball bearing runner with proximal part fixed to rack or support, where inclination of runner is modified by selecting fixation holes on desktop to preadjust height and distance of support device
US10792183B2 (en) 2011-10-06 2020-10-06 Saebo, Inc. Mobile arm support
DE102017110147A1 (en) * 2017-05-10 2018-11-15 Gefa Nägler Arm relief and support device

Also Published As

Publication number Publication date
SE9001006D0 (en) 1990-03-21
SE464740B (en) 1991-06-10
AU7548591A (en) 1991-10-21

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