Ergonomic hand grip and method of gripping

• US 5,979,015 A
• Filed: 12/27/1996
• Issued: 11/09/1999
• Est. Priority Date: 12/27/1996
• Status: Expired due to Term

• Current Assignee: Stephen K. Tamaribuchi
• Original Assignee: Stephen K. Tamaribuchi
• Inventors: Tamaribuchi, Stephen K.
• Primary Examiner(s): Mai, Lanna
• Assistant Examiner(s): Lerner, Avraham H.
• Application Number:
  US08/774,199
• Time in Patent Office: 1,047 Days
• Field of Search: 16/110 R, 16/DIG. 12, 16/DIG. 19, 74/551.9, 74/551.8, D21/198, D 8/80, D 8/303, D 8/313, 280/821, 280/819
• US Class Current: 16/110.1
• CPC Class Codes: A63C 11/22 Ski-sticks
• CPC Class Codes: B25G 1/102 the shape being specially adapted to facilitate handling or improve grip
• CPC Class Codes: B62K 21/26 Handlebar grips twist grips B62K23/04
• CPC Class Codes: Y10S 16/19 Cast or molded handles
• CPC Class Codes: Y10T 74/20828 Handholds and grips

Abstract

An ergonomic hand grip is provided for use with a wide variety of devices and equipment such as ski poles and bicycle handlebars. In a basic illustrated form, the grip has an elongated base that is contoured so that, when gripped, the thumb is bent and the hand and wrist are in a neutral position. In the neutral position, the hand is not cocked or hyper-extended, but rather is generally aligned with the forearm. In particular, a thumb support is provided adjacent to one end of the base to position and support the thumb in the bent position. The base is also provided with suitable depressions and/or recessed areas to receive enlarged portions of the gripping hand to cause the knuckles to be in generally linear alignment. Further, the end of the base opposite the thumb support is reduced in size to allow disproportionately more contraction of the lowermost two fingers, and primarily the lowermost or little finger. When used in certain applications such as for ski poles where the base is generally upright, the base is desirable tilted slightly forwardly. The grip tends to promote improved alignment and stabilization of the parts of the user'"'"'s body and in particular stabilize the user'"'"'s shoulders, and in turn his/her hips, legs, etc. for greater stability and efficiency of movement. The grip also facilitates the users ability to resist stress applied to the grip.

Claims

1. An ergonomic elongated handgrip for being held in a hand of a user, which handgrip when disposed generally upright and gripped with the thumb of the user'"'"'s hand prevents pronation of the first metacarpal and the thumb, and which grip comprises:

a) an elongated base having a central longitudinal axis and upper and lower opposed ends, and a series of generally transversely extending finger receiving grooves, each of which extends partially around said base, said grooves being spaced apart longitudinally on said base, the circumference of said base increasing upwardly from the lowermost groove to the uppermost groove, the base'"'"'s reduced circumference allowing greater contraction of the small finger of the gripping hand at a joint between the phalanges and metacarpals, than the contraction of the comparable joints of the other three fingers of the gripping hand, on said base and

b) a thumb support adjacent to said upper end of said base, said thumb support extending generally transverse to the axis of said base to one side of the axis having a slightly arcuate surface so as to position and support the thumb of the gripping hand in a bent position to one side of the axis with a bend in both joints of the thumb.

2. The grip of claim 1 wherein said thumb support also includes a lateral support surface located between said support surface and the axis, said lateral support surface extending generally transversely to said support surface.

3. A pair of the grips of claim 1 each in combination with an elongated ski pole having a first end, said ski pole being usable in a generally upright orientation with said first end of said ski pole being oriented uppermost, each grip being attached to said associated ski pole via said second end of said base of said grip attaching to said first end of said associated ski pole.

4. The grips of claim 3 wherein each of said grips is configured and arranged for use with said first end of said base being tilted somewhat forwardly.

5. The grips of claim 4 wherein first end of said base is tilted forwardly from about zero degrees to about 17 degrees from the vertical.

6. A pair of grips of claim 1 in combination with a bicycle handlebar that is disposed generally horizontally, said grips each being attached at said second end of said base to said handlebar.

7. The grips of claim 6 wherein the handlebar is for use on a mountain type bicycle and said grips extended generally horizontally but somewhat upwardly from said handlebar.

8. The grips of claim 6 wherein said handlebar is for use with a road type bicycle or an extension on a mountain type bicycle and said grips extend generally upright but tilt somewhat forwardly.

9. The grip of claim 1 in combination with equipment actuated by pulling on said grip.

10. The grip of claim 1 having an extension section attached to said first end of said base and being generally collinear with said base along the axis.

11. The grip of claim 10 in combination with a tool attached to said extension section.

12. The grip of claim 10 in combination with an apparatus designed for being acted upon by pulling forces, said grip further including a connector element connected to said extension section and disposed for being connected to said apparatus.

13. The grip of claim 12 wherein said forwardly directed portion includes individual indentations for each finger.

14. The grip of claim 13 wherein said indentation for the small finger of the gripping hand is disproportionately larger than said indentations for the other fingers of the gripping hand to facilitate greater contraction of the small finger than the two uppermost fingers of the gripping hand when gripping.

15. The grip of claim 14 wherein said indentation for the ring finger of the gripping hand is also disproportionately larger than said indentations for the two uppermost fingers of the gripping hand to facilitate greater contraction of the ring finger than the two uppermost fingers of the gripping hand when gripping.

16. The handgrip of claim 1 wherein said base has a generally sidewardly directed portion contoured for engaging so as to position and support the areas of the inside of the gripping hand generally aligned with the knuckle joint,

said generally sidewardly directed portion including an elongated generally upright recess for receiving at least the knuckle joints of the first and index fingers of the hand so as to maintain said joints generally aligned with one another.

17. The handgrip of claim 1 wherein said base also has:

a) a generally sidewardly directed portion, an elongated inward contour for engaging a hand, so as to position and support the areas of the inside of the digits of the fingers of the gripping hand where the fingers join to the palm, and a generally rearwardly directed portion, contoured for engaging a hand, so as to position and support an intermediate palm area.

18. The grip of claim 17 wherein the generally rearwardly directed portion includes a recess for receiving the palm area around the second metacarpal of the gripping hand.

19. The grip of claim 17 wherein said grip is configured and designed for use with said base tilted forwardly from about zero degrees to about 17 degrees from the vertical.

20. The grip of claim 1 wherein the thumb support surface is inclined downwardly as it extends radially away from the central axis to support the thumb so that the inside of the thumb is rotated toward the palm of the hand.

21. The grip of claim 1 wherein the generally sidewardly directed portion includes a lower recessed portion for the heel portion of the palm area of the gripping hand around the joint of the small finger and the associated metacarpal.

22. The grip of claim 1 wherein said upper and lower ends are each solid continuous surfaces adapted to restrict engagement with another device.

23. A ergonomic hand grip for being held in a hand of a user comprising:

a) an elongated base having an upper and lower end,

b) a slightly arcuate thumb locating and supporting ledge adjacent to said upper end of said base, and extending outwardly from,

c) a series of generally transversely extending finger-receiving grooves extending at least partially around said base and spaced apart longitudinally of said base, said grooves being positioned longitudinally on said base so that when said grip is held by the hand of the user, said ledge is positioned relative to the thumb on the hand so that the thumb rests upon said ledge in a bent position with a bend in both joints of the thumb rather than an extended position, said groove for the small finger of the hand being sufficiently reduced in circumference beyond what is required to accommodate the shorter length of the small finger relative to the lengths of the remaining fingers of the hand so that when said grip is held by the hand of the user, the small finger received in said groove contracts substantially more than the remainder of the fingers of the hand.

24. The grip of claim 23, wherein said upper and lower ends are each solid continuous surfaces adapted to restrict engagement with another device.

25. The grip of claim 23 further including an enlarged portion below the lowermost of said longitudinally positioned grooves.

26. An ergonomic handgrip for being held in a hand of a user comprising:

an elongated base having a central longitudinal axis and upper and lower opposed ends, said base having a reduced circumference adjacent said lower end to allow greater contraction of the small finger of the gripping hand at the joint between the phalanges and metacarpals than the contraction of the comparable joints of the other three fingers of the gripping hand, said base, when disposed generally upright, also having an enlarged circumference at said upper end; and

a generally forwardly directed portion contoured for engaging so as to position and support the areas of the palm of the inside of the gripping hand where the fingers join to the palm, said forwardly directed portion includes four individual indentations one for each finger, said indentation for the small finger of the gripping hand being disproportionately larger than said indentations for the other fingers of the gripping hand to facilitate greater contraction of the small finger than the two uppermost fingers of the gripping hand when gripping, said indentation for the ring finger of the gripping hand being disproportionately larger than said indentations for the two uppermost fingers of the gripping hand to facilitate greater contraction of the ring finger than the two uppermost fingers of the gripping hand when gripping;

a generally sidewardly directed portion contoured for engaging so as to position and support the areas of the inside of the gripping hand where the fingers join to the palm; and

a generally rearwardly directed portion contoured for engaging so as to position and support the intermediate palm area of the gripping hand;

a thumb support adjacent to said upper end of said base, said thumb support including a support surface extending generally transverse to the axis of said base and extending to one side of the axis and adapted to position and support the thumb of a gripping hand in a bent position to one side of the axis with a bend in both joints of the thumb, and

an enlarged portion below said little finger indentation.

27. The grip of claim 26, wherein said upper and lower ends are each solid continuous surfaces is adapted to restrict engagement with another device.

28. In the grip of claim 26 wherein the sidewardly directed portion contoured to position and support the areas of the inside of the gripping hand, has an elongated recess contoured for such purpose.

29. An ergonomic hand grip for being held in a hand of a user comprising:

an elongated base having a central longitudinal axis and first and second opposed ends, said first and second ends each being solid continuous surfaces adapted to restrict engagement with another device, said base having a reduced circumference adjacent said second end to allow greater contraction of the small finger of the gripping hand at the joint between the phalanges and metacarpals and at the distal joint than the contraction of the comparable joints of the other three fingers of the gripping hand;

a thumb support adjacent to said first end of said base, said thumb support including a support surface extending generally transverse to the axis of said base and extending to one side of the axis so as to position and support the thumb of the gripping hand in a bent position to one side of the axis with a bend in both joints of the thumb; and

an enlarged portion at said second end of said base.

30. An elongated handgrip, when disposed generally upright, comprising:

an elongated body having a longitudinal generally central axis, the body having an upper end and a lower end, the body having a generally smooth contoured outer surface comprising a series of elongated surface portions that extend generally upright and parallel to the axis and are arranged circumferentially around the axis to engage a hand of a user with the palm and the fingers of the hand wrapped around the body surface and with the thumb uppermost, said surface portions comprising first, second, third and fourth portions,

said first elongated surface being contoured for engaging the innermost digits of the fingers of a user'"'"'s hand, said surface portion having a series of longitudinally spaced apart recesses for each receiving one of said digits, said second elongated surface portion being sidewardly directed and being contoured for engaging the portion of the palm of the user'"'"'s hand generally aligned with the knuckle joints, said second surface portion having an elongated recess extending generally upright and parallel to said axis for receiving and generally aligning at least the top two knuckles of a user'"'"'s hand;

said third elongated surface portion being rearwardly directed and being contoured for engaging the remaining portions of a user'"'"'s palm including the thumb pad, said third surface portion being generally at a right angle to said second surface portion, and being wider over at least most of its height than said first surface portion,

said fourth portion being contoured for engaging the end two digits of the fingers of a user'"'"'s hand in bent encircling condition, said fourth surface portion being angled so that it is generally further from the second surface portion where it meets the third surface portion than it is from the second surface portion where it meets the third surface portion, the area of said body'"'"'s upper end that is generally opposite from said second surface portion, being contoured with a thumb positioning and supporting ledge that extends generally transverse to the central axis, said thumb supporting ledge facing generally upwardly, the thumb supporting ledge commencing at the upper end of the third surface portion, then sloping upwardly to provide a support for the intermediate digit of the thumb so that that digit extends slightly upwardly, then sloping back downwardly to provide a support for the outermost digit of the thumb so that the digit extends back downwardly, whereby the thumb is supported with both joints bents;

said thumb support ledge being inclined downwardly as it extends rapidly away from the central axis to support the bent thumb so that the inside of the thumb is rotated toward the palm of the hand.