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Publication numberUS3815908 A
Publication typeGrant
Publication dateJun 11, 1974
Filing dateMay 29, 1973
Priority dateMay 29, 1973
Publication numberUS 3815908 A, US 3815908A, US-A-3815908, US3815908 A, US3815908A
InventorsY Hashimoto
Original AssigneeY Hashimoto
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Bowler{40 s wrist support
US 3815908 A
Abstract
A bowler's wrist support preventing the wrist from bending outwardly when the bowler releases the ball comprising a thumb band portion, a rigid portion and a wrist band portion. The rigid portion has a core comprising an outer rigid member and an inner resilient member. Fastening members are placed so that the support is well positioned over the wrist and the hand irrespective of the size of the hand or thumb while the band portion leaves the palm of the hand free from encumbrances.
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Description  (OCR text may contain errors)

United States Patent 1 1 1 1 3,815,908 Hashimoto June 11, 1974 [5 BOWLER'S WRIST SUPPORT 3.533407 10/1970 Smith 273/54 B ux s 9 3 [76] Inventor: Yoshio Hashimoto, 3-11, 2-chome 3598 408 H 7] f 27 /54 B Sama-ku Kobe Primary Examiner-Anton O. Oechsle p Attorney. Agent, or Firm-Browdy and Neimark [22] Filed: May 29, 1973 [211 Appl. No; 364,921 1 71 ABSTRACT A bowlers wrist support preventing the wrist from 52 us. (:1. 273/54 B 2/161 A 128/165 bending outwardly when the releases the 511 Int. Cl A631, 71/14 a humb band Portion, rigid POYtiO" and [58] Field of Search 273/54 B 89 2/16 a wrist band portion. The rigid portion has a core 128/89 R comprising an outer rigid member and an inner resilient member. Fastening members are placed so that [56] References Cited the support is well positioned over the wrist and the hand irrespective of the size of the hand or thumb 3 238 939 Z SJ 273/54 B UX while the band portion leaves the palm of the hand tu s f f b 3,369,258 2/1968 Smith 273/54 B X fee mm encum rance-S 3,512,776 5/1970 Thomas 273/54 B 12 Claims, 12 Drawing Figures PATENTEDJuu 1 1 Ian 3.815308 SNEETIUF 3 PRIOR ART PATENIEDJuuumM 3.815908 SHEETEOFS FIG. 5

BOWLERS WRIST SUPPORT BACKGROUND OF THE INVENTION This invention relates to bowlers wrist supports and, more particularly, to a bowlers wrist support to be fitted on the bowlers wrist in order to prevent the wrist from bending outwardly when the bowler releases his ball.

Balls employed in bowling matches are quite heavy, so that the wrist of the hand holding a ball is often bent outwardly when releasing the ball. If the ball is thrown with the wrist bent outwardly, it is impossible to impart a spinning action to the ball and the resultant throw is nothing other than a so-called haul, which is not effective in creating pin action. Accordingly, a wrist support which permits the bowler to hold and release a ball properly, without the possibility of causing the wrist to be bent outward, has heretofore been desired.

DESCRIPTION OF THE PRIOR ART There are wrist support bands that have been proposed to meet this need. FIG. 1 shows a typical structure of the prior art wrist support band. It consists of a rigid portion A reinforced with a rigid plate, flexible portions B, and a thumb insertion hole 1. In use, it is fitted on the wrist by inserting the thumb through the thumb insertion hole 1 and winding the band portions B around the wrist with the rigid portion A placed on the outer side of the wrist. This wrist support band extant in the prior art is fairly effective in preventing the wrist from bending outward since a rigid plate is contained as a core member within the rigid portion A. However, it has some shortcomings. First, since the thumb insertion hole is pre-formed, this is often incompatible with the various sizes of bowlers hands and the various thicknesses and lengths of bowlers thumbs. Since bowling is played by all ages from children to adults, male or female, and the size of the hand varies with individual bowlers, in many cases the rigid portion A cannot be placed well on the outer side of the wrist. In such cases, the intended use cannot be fully achieved. Second, while holding the ball it is not desir able for the palm to be covered with bands or the like, yet it is desirable to wind the band around the wrist as many turns as possible in order to secure the wrist support band. But if the wrist is wound with the band portion of the prior art wrist support band, two or three turns, a majority of the palm is covered, so that handling the ball becomes very difficult. On the other hand, winding the band only one turn is insufficient to secure the wrist support band. Third, as the band is wound, after the insertion of the thumb into the thumb insertion, it does not closely fit the hand but becomes loose at the stem of the thumb (indicated at 2 in FIG. 1). This is very inconvenient for holding and throwing the ball. Fourth, it is desirable for the rigid portion A to extend not only over the wrist but also over the back of the hand to promote the effect of preventing the bending of the wrist, this cannot be achieved with the prior art wrist support band. If the rigid portion A is increased such that it extends over the back hand, the palm is wholly covered by the band portion B. In such a case, the ball cannot be smoothly held and thrown.

SUMMARY OF THE INVENTION A further object of the invention is to provide a bowlers wrist support, which can be closely fitted on the wrist without any loosening at the stem of the thumb.

A still further object of the invention is to provide a bowlers wrist support, whose rigid portion can extend not only over the wrist but also over the back of the hand, and nevertheless whose band portion will not cover the palm.

The above and other objects of the invention will become more apparent fromthe following description.

DESCRIPTION OF THE PREFERRED EMBODIMENTS The unique features of the invention, to achieve the above objects, reside in that the band portion has a particular shape and that a thumb band is provided instead of forming a thumb insertion hole. These and other features of the invention will be more fully understood from the following description with reference to the accompanying drawing, in which:

FIG. 2 is a plan view of an embodiment of the bowlers wrist support according to the invention;

FIG. 3 is a view showing the embodiment of FIG. 2 actually fitted on the wrist viewed from the outer side thereof;

FIG. 4 is a view of the same viewed from the inner side of the wrist;

FIG. 5 is a sectional view taken along line 5--5 in FIG. 2;

FIG. 6 is a plan view showing another example of the bowlers wrist support according to the invention;

FIG. 7 is a view showing the embodiment of FIG. 6 actually fitted on the wrist viewed from the outer side thereof;

FIG. 8 is a view of the same viewed from the palm side.

FIG. 9 is a sectional view taken along line 9-9 in FIG. 6;

FIG. 10 is a plan view of a rigid member 9 enclosed within the rigid portion C;

FIG. 11 is a sectional view taken along line l1ll in FIG. 10; and

FIG. 12 is a sectional view taken along line 12-12 in FIG. 10.

FIGS. 2 to 5 show one embodiment of the wrist support according to the invention. It consists of a rigid portion C, a wrist band portion D joined to the right hand edge of the portion C and a thumb band portion E joined to the left hand edge of the portion C. The rigid portion C is provided on its upper portion with a hook fastening member 3. The rigid portion C consists of a front surface and a back surface of cloth, leather or a suitable packing material enclosing a core consisting of an outer rigid member 9 and an inner resilient member 10. While the rigid member 9 may be a flat plate as shown in FIG. 5, it desirably has a curved configuration curved both longitudinally and laterally .as shown in FIGS. 9 to 12. The rigid member 9 has a length of to 18 cm, desirably 8 to 14 cm., and a width of 3 to 7 cm. desirably 4 to 6 cm. The radius of curvature of its longitudinal section of FIG. 11 is 250 to 3,000 mm., desirably 500 to 1,500 mm., and the radius of curvature of its lateral section of FIG. 12 is 30 to 1,000 mm., desirably 50 to 500 mm. The core of this curved configuration permits the rigid portion to be closely fitted on the wrist and back of the hand, so that it is particularly useful in preventing the outward bending of the wrist. Such a core has never been known heretofore, and it is newly developed by the inventor. The rigid member may be made of any material so long as it has a rigidity enough to hold the wrist straight; for example, such well-known material as iron, or like metal such as steel and also various plastic materials may be effectively used.

The wrist band portion D joined to the rigid portion C has an important feature in its particular shape, which is shown in FIG. 2 in connection with the embodiment of FIGS. 2 to 4 and-in'FIG. 6 in connection with the embodiment of FIGS. 6 to 8, but slight changes in its shape and dimensions are allowed.

For purposes of better describing and more particularly pointing out the particular shape of the invention the following dimensions are specified,

In FIGS. 2 or 6, the cross sectional lines 55 and S 9-9, that bisect the rigid member and runs in a lengthwise direction, also serve as reference lines for specifying these preferred dimensions. h the shortest line that can be drawn from a point at the top, or finger end, of the rigid portion along the long axis of the rigid member and terminating at the center of fastening member 3, is 1.5 to 7 cm., preferably 2 to 5 cm. h the dimension running from the bottom, or arm end, junction of the rigid portion C with the wrist band portion D and terminating at a point corresponding to the bottom, or arm end, of the rigid portion, is 0.5 to 8 cm., preferably 1 to 5 cm. h the shortest line that can be drawn between a point on the line passing through the center point of fastening member 3 and perpendicular to reference line 55 or 9-9 and a point corresponding to the top of finger end, junction of the rigidportion C with the wrist band portion D, is 3 to 6 cm., preferably 4 to 5 cm.. h.,, the length of the junction between the rigid portion C and the wrist band portion D, is 4 to 7 cm., preferably 5 to 6 cm. 1, the shortest line running from a point on reference lines denominated 5-5 and 9-9 and terminating at a point corresponding to the junction of the rigid portion C with the wrist band portion D, is 7 to 12 cm., preferably 8 to 10 cm. Since the wrist band portion D has this particular shape, it will cover only the wrist portion even though the rigid portion D covers the back of the hand, and the palm will not be covered even if it is wound two or three turns. Also, since the width of the wrist band portion D is quite smallcompared to the longitudinal dimension of the rigid portion C, the wrist will not be absolutely held tight but can be bent inward to a slight extent (although it can not be bent outward). This is advantageous since considerable freedom is provided for the handling of the ball.

This wrist band portion is provided on the back side of its free end portion with a hook fastening member 8. Also, it is provided on the front side of its other tapered end portion joined to the rigid portion with a hook fastening member 6 and on the back side of the same with a pile fastening member 7.

The thumb band portion E also constitutes an important feature of the invention. By the provision of this thumb band portion E the rigid portion C can be positioned over the wrist and back of the hand irrespective of the size of the hand, and also it can be closely fitted and will not get loose even at the stem of the thumb. This thumb band portion E is provided on the back side of its top end with a pile fastening member 4 and on the left corner of its lower portion with a hook fastening member 5.

The thumb band portion has a shape as shown in FIGS. 2 or 6, where the angle a, the acute angle formed by the junction of the line drawn thru the center point of fastening member 4 and the center point of fastening member 5 and the line drawn thru the center point of fastening member 3 and the center point of fastening member 5, is 45 to 85, preferably 60 to As a fastening member Velcro, for example, may be suitably used.

To fit the bowlers wrist support according to the invention, the rigid portion C is placed on the back of the hand, and by winding the wrist band portion D over the inner side of the wrist the pile fastening member 7 on the back side of the tapered end portion of the wrist band portion and the hook fastening member 5 on the left corner of the lower portion of the thumb band portion are fastened to each other. Then, the wrist band portion D is wound over the front side of the rigid portion C and then over the inner side of the wrist, and it is fixed in position by fastening the hook fastening member 6 on the front side of the tapered end portion of the wrist band portion D and the pile fastening member 8 on the back side of the free end portion of the wrist band portion to each other. Finally, by winding the thumb band portion E around the thumb the pile fastening member 4 on the back of the free end portion of the thumb band portion is fastened to hook fastening member 3 on the upper portion of the rigid portion C.

When the bowlers wrist support according to the invention is fitted, the wrist will not bend outward and also it can be bent inward only to a slight extent, it is thus possible to give the ball a strong spinning action so as to obtain a pin action of high strike efficiency.

Also, when the bowlers wrist support is fitted by winding around the wrist twice with the wrist band portion D and fastening the thumb band portion E in conformity to the shape of the hand, the rigid portion C is closely fitted over the wrist and back of the hand, so that a constant supporting effect can be maintained without resulting in any loosening effects even if the game is continued for a long time.

It will be obvious to those skilled in the art that various changes may be made without departing from the scope of the invention and the invention is not to be considered limited to what is shown in the drawings and described in the specification.

What is claimed is:

1. A bowlers wrist support preventing the wrist from bending outwardly when the bowler releases the ball comprising a thumb band portion, a rigid portion and a wrist band portion, the back and front of the support being defined by the back and front surfaces, respectively, of said thumb band portion, rigid portion and wrist band portion, said thumb band portion having a free end portion and an adjacent end portion, said adjacent end portion being joined to one edge of said rigid portion, said wrist band portion having a free end portion and a second portion, said second portion being joined to the opposite edge of said rigid portion; said thumb band portion having fastening members located on the back surface of said free end portion and the front surface of said adjacent end portion thereof; said rigid portion comprising a core enclosed between said front and back surfaces thereof, said core comprising an outer rigid member and an inner resilient member; a fastening member located on the front surface of the upper end of said rigid portion; and said wrist band portion having fastening members located on the back surface of said free end portion and on the front and back surfaces of said second end portion thereof.

2. The bowlers wrist support according to claim 1 wherein said outer rigid member of said core has a length ranging from 5 to 18 cm. and a width ranging from 3 to 7 cm.

3. The bowlers wrist support according to claim 1 wherein said outer rigid member in said core is curved both in the direction of length and in the direction of width.

4. The bowlers wrist support according to claim 3 wherein said outer rigid member has a radius of curvature in the longitudinal direction ranging from 250 to 3,000 mm. and a radius of curvature in the lateral direction ranging from 30 to 1,000 mm.

5. The bowlers wrist support according to claim 1 wherein the dimension corresponding to the shortest line that can be drawn between a point on the line passing through the center point of said fastening member of said rigid portion and perpendicular to the line bi secting in a lengthwise direction said'outer rigid member of said core, and the point corresponding to the top of the junction of said rigid portion with said wrist band portion, ranges from 3 to 6 cm.; wherein the length of the junction between said rigid portion and said wrist band portion ranges from 4 to 7 cm., and wherein the dimension corresponding to the shortest line drawn from any point on the line bisecting in a lengthwise direction said outer rigid member of said core and a point on the junction of said rigid portion with said wrist band portion ranges from 7 to 12 cm.

6. The bowlers wrist support according to claim 1 wherein the dimension corresponding to the shortest line that can be drawn from a point at the top of said rigid portion along the long axis of said outer rigid member to a point corresponding to the center point of said fastening member on said rigid portion ranges from 1.5 to 7 cm;

7. The bowlers wrist support according to claim 1 wherein thedimension corresponding to the line running from the bottom junction of said rigid portion with said wrist band portion and terminating at a point corresponding to the bottom of said rigid portion, ranges from 0.5 to 8 cm.

8. The bowlers wrist support according to claim 1 wherein the acute angle formed by the junction of the line drawn thru the center points of said fastening members of said thumb band portion and the line drawn thru the center point of said fastening member of said rigid portion and the center point of said fastening member located on the front surface of said thumb band portion, ranges from 45 to 9. The bowlers wrist support according to claim 1 wherein each of said fastening members is Velcro.

10. The bowlers wrist support according to claim 1 wherein said thumb band portion, said rigid portion and said wrist band portion are initially integral to one another.

11. The bowlers wrist support according to claim 1 wherein said thumb band portion, said rigid portion and said wrist band portion are joined to one another into a single structure.

12. The bowlers wrist support according to claim 1, wherein said thumb band portion, said rigid portion and said wrist band portion are joined to one another at given positions into a single structure.

Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US3238939 *Feb 23, 1965Mar 8, 1966Frank F StubbsWrist support
US3369258 *Aug 31, 1966Feb 20, 1968Gilbert I. SmithGlove with wrap-around fastening means
US3512776 *Jan 18, 1968May 19, 1970Thomas Edward J SrWrist supporting device for bowlers
US3533407 *Sep 22, 1969Oct 13, 1970Faberge IncStrap type wrist support
US3598408 *Mar 18, 1970Aug 10, 1971Alfred P KloseWristlet and web protector with athletic item engaging pad
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US3871029 *Aug 5, 1974Mar 18, 1975George A HollmanBowling glove
US4138108 *Aug 15, 1975Feb 6, 1979Robinson Charles HAthletic hand/wrist positioner
US4309991 *Jun 18, 1980Jan 12, 1982Demarco Alexander HWrist brace
US4441490 *Sep 23, 1982Apr 10, 1984Nirschl Robert PWrist brace
US4584993 *Sep 12, 1984Apr 29, 1986Nelson Ronald EWrist brace
US5014689 *Feb 21, 1990May 14, 1991The Kendall CompanyHand brace
US5267943 *Sep 1, 1992Dec 7, 1993Michael DancygerWrist and hand support device
US5323754 *Sep 18, 1991Jun 28, 1994Tru Fire CorporationStrap assembly for bow string release mechanism
US5350418 *May 18, 1993Sep 27, 1994Smith & Nephew Rolyan, Inc.For the hand
US5397296 *Nov 2, 1993Mar 14, 1995Ergodyne CorporationWrist support and wrist support stay
US5484392 *Dec 14, 1994Jan 16, 1996Ergodyne CorporationWrist support and wrist support stay
US5513657 *Jan 17, 1995May 7, 1996Nelson; Ronald E.Wrist brace
US5538501 *Sep 16, 1994Jul 23, 1996Ok-1 Manufacturing CompanyWrist support
US5592694 *Apr 26, 1995Jan 14, 1997Yewer, Jr.; Edward H.Wrap type hand glove
US5682611 *Sep 13, 1996Nov 4, 1997Kline; Samuel C.Thumb support
US5809569 *Nov 12, 1996Sep 22, 1998Bruno; Beth AnnDevice for securing a glove or mitten to the hand
US5810753 *Mar 27, 1995Sep 22, 1998Eberbach; Mark A.Glove
US6199208 *Feb 15, 2000Mar 13, 2001Shawn TorbettAthletic wrist support
US6942632 *Mar 25, 2003Sep 13, 2005Young-Kook ChoWrist support apparatus for bowling
US7240672Jan 26, 2005Jul 10, 2007Tru-Fire CorporationAdjustable trigger pressure archery release (stealth)
US7422008Sep 15, 2003Sep 9, 2008Tru-Fire CorporationStrap for bow string release
US7926476Jul 21, 2008Apr 19, 2011Tru-Fire CorporationStrap for bow string release
US7954175 *Oct 31, 2007Jun 7, 2011Platt David CStructure and method for stabilizing an archer's hand
US8011541 *Apr 28, 2006Sep 6, 2011Castle Mountain Enterprises LlcTool containment system
US8641650Mar 25, 2009Feb 4, 2014James M SpitzerWrist support
US8657771Apr 8, 2003Feb 25, 20143M Innovative Properties CompanyOrthopedic device for stabilizing the thumb
USRE38833Feb 25, 2002Oct 18, 2005Tru-Fire CorporationCaliper type bow string release having push/pull trigger and automatic alignment and locking features
Classifications
U.S. Classification473/62, 602/64, 2/161.2, 2/160, 128/DIG.150
International ClassificationA63B71/14
Cooperative ClassificationA63B71/148, Y10S128/15
European ClassificationA63B71/14G8