EP2559353A1 - Hand-operated stick device and the shaft thereof - Google Patents
Hand-operated stick device and the shaft thereof Download PDFInfo
- Publication number
- EP2559353A1 EP2559353A1 EP11177762A EP11177762A EP2559353A1 EP 2559353 A1 EP2559353 A1 EP 2559353A1 EP 11177762 A EP11177762 A EP 11177762A EP 11177762 A EP11177762 A EP 11177762A EP 2559353 A1 EP2559353 A1 EP 2559353A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- shaft
- ribs
- hand
- stick device
- operated
- 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.)
- Withdrawn
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Classifications
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63C—SKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
- A63C11/00—Accessories for skiing or snowboarding
- A63C11/22—Ski-sticks
- A63C11/227—Details; Structure
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B60/00—Details or accessories of golf clubs, bats, rackets or the like
- A63B60/54—Details or accessories of golf clubs, bats, rackets or the like with means for damping vibrations
-
- A—HUMAN NECESSITIES
- A45—HAND OR TRAVELLING ARTICLES
- A45B—WALKING STICKS; UMBRELLAS; LADIES' OR LIKE FANS
- A45B9/00—Details
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B60/00—Details or accessories of golf clubs, bats, rackets or the like
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B60/00—Details or accessories of golf clubs, bats, rackets or the like
- A63B60/48—Details or accessories of golf clubs, bats, rackets or the like with corrugated cross-section
-
- A—HUMAN NECESSITIES
- A45—HAND OR TRAVELLING ARTICLES
- A45B—WALKING STICKS; UMBRELLAS; LADIES' OR LIKE FANS
- A45B9/00—Details
- A45B2009/005—Shafts
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B2102/00—Application of clubs, bats, rackets or the like to the sporting activity ; particular sports involving the use of balls and clubs, bats, rackets, or the like
- A63B2102/22—Field hockey
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B2102/00—Application of clubs, bats, rackets or the like to the sporting activity ; particular sports involving the use of balls and clubs, bats, rackets, or the like
- A63B2102/24—Ice hockey
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B53/00—Golf clubs
- A63B53/10—Non-metallic shafts
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B53/00—Golf clubs
- A63B53/12—Metallic shafts
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B59/00—Bats, rackets, or the like, not covered by groups A63B49/00 - A63B57/00
- A63B59/70—Bats, rackets, or the like, not covered by groups A63B49/00 - A63B57/00 with bent or angled lower parts for hitting a ball on the ground, on an ice-covered surface, or in the air, e.g. for hockey or hurling
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B60/00—Details or accessories of golf clubs, bats, rackets or the like
- A63B60/0081—Substantially flexible shafts; Hinged shafts
Definitions
- the present invention relates generally to a device used in ordinary life or sport, and more particularly to a hand-operated stick device and the shaft thereof.
- the walking stick is a necessary device to help an elder or a disabled person to walk
- the trekking pole may help the mountain climber or hiker to stably walk
- the ski pole may help the skier to ski forward and turn.
- Other hand-operated stick devices include golf club, hockey stick and other sport goods.
- the hollow shaft may reduce the weight to decrease the loading when the user operates it.
- the first way is changing material, such as using carbon to replace metallic tube.
- the second way is using less material.
- using less material may cause the shaft having a thin wall thickness.
- the weight of the shaft is reduced from 150 grams per meter to 57 grams per meter that the wall thickness of the shaft is reduced to 0.8mm.
- Such shaft has an insufficient strength that the shaft is easy to be deformed or broken. This may lead the shaft can't be used anymore and may hurt the user.
- the strength of the structure is weaker. If the shaft has a bent portion, the wall of the shaft at the bent portion is thinner than the rest portion, and the stress will be concentrated here that the shaft is easier to be broken at the bent portion.
- the primary objective of the present invention is to provide a hand-operated stick device and the shaft thereof, which may increase the strength of the structure and provide a safe use.
- a hand-operated stick device includes a gripping portion, a working member and a shaft with opposite ends connected to the gripping portion and the working member.
- the shaft has a wall thickness and at least a rib projected from an inner side thereof.
- the rib extends from an end of the shaft adjacent to the gripping portion to the other end adjacent to the working member.
- the rib has a width and a height, and the width and the height are greater than or equal to the wall thickness.
- the rib includes a plurality of separated rib sections.
- the ribs there are three ribs on the inner side of the shaft with the same interval therebetween. Furthermore, the ribs have their distal ends connected together at a center of the shaft. It may provide any numbers of the ribs on the inner side of the shaft, and the ribs may extend in an axis of the shaft or spirally.
- the shaft of the hand-operated stick device of the present invention is characterized in that the shaft has a wall thickness and at least three ribs projected from an inner wall thereof. Each rib has a width and a height, both of which are greater than or equal to the wall thickness.
- the hand-operated stick device of the present invention may be a walking stick, trekking pole, ski pole, golf club, hockey stick and so on. These devices have a common structure including a gripping portion, a working member and a shaft connecting the gripping portion and the working member. It is noted that the shape and structure of the working member is various according to the purpose of the stick device. For example, when the stick device is a walking pole, the working member will be a tip for against the ground. When the stick device is a golf club, the working member is the golf club head. When the stick device is a hockey stick, the working member is the blade.
- We take the walking pole for example to describe the hand-operated stick device and the shaft of the present invention in the following description.
- a hand-operated stick device of the preferred embodiment of the present invention is a walking pole 10, which includes an elongated shaft 12, a gripping portion and a working member.
- the shaft 12 is a tapered tubular member.
- the gripping portion is a handle 14 fitted to a top end 12a of the shaft 12 to be held by user's hand.
- the working member is a tip 16 fixed to a bottom end 12b of the shaft 12 for against the ground.
- the entire shaft 12 has the same wall thickness T.
- the shaft 12 has a plurality of ribs 13 projected from an inner side 12c thereof.
- the ribs 13 extend in an axis of the shaft 12 from the top end 12a to the bottom end 12b, and there are three ribs 13 with the same interval therebetween.
- each rib 13 has a width W and a height H.
- the width W is a distance between two points of the rib 13 connecting the inner side 12c of the shaft 12, and the height H is the shortest distance between the highest point of the rib 12 and the inner wall 12c.
- the cross section of the rib 13 may be rectangular as shown in FIG. 2 or curved shaped as shown in FIG. 4 . No matter what kind of the shape the ribs 13 are, the width W of the rib 13 must be greater than or equal to the wall thickness T of the shaft 12, and the height H is greater than or equal to a wall thickness T as well.
- the ribs 13 may increase a toughness of the shaft 12 to resist deformation that the shaft 12 will not be broken easily and have a high safety, furthermore, it may achieve the purpose of reducing the loading of user and easy to operate.
- the shaft 12 of the hand-operated stick device of the present invention may be applied in walking stick, trekking pole, alpenstock, golf club or hockey stick that may provide the same function.
- the ribs 13 have the same interval therebetween to evenly disperse the force exerted on the shaft 12 and to avoid the concentration of the force to break the shaft 12.
- three ribs 13 with the same interval are the best design. The main reason is that the strengths in all directions will be the same when the handle 14 or the tip 16 engaging the shaft 12 in any angle.
- FIG. 5 it shows a shaft 20 having spiral ribs 22.
- a shaft 30 has several ribs 32 extending in the axis of the shaft 30.
- Each rib 32 has several separated rib sections 32a.
- the region having the rib sections 32a is defined as an enhanced region, and the region without the rib section 32a is defined as flexible region.
- the flexible regions may provide the shaft 30 a flexibility. Take the golf club for example, the flexible regions of the shaft 30 may cause the shaft 30 to flex and absorb the shake when a golfer swings the golf club to hit a ball.
- FIG. 7 shows a shaft 40 having four ribs 42 with the same interval therebetween.
- the ribs 42 may extend in the axis or in the spiral direction, or the ribs 42 may be constructed by separated rib sections.
- FIG. 8 shows a shaft 50 having several ribs 52 with their distal ends connected together at a center of the shaft 50.
- the present invention provides the shaft having the ribs with the width W greater than or equal to the wall thickness T, and the height greater than or equal to the wall thickness T also that the shaft will have a great toughness and compressive strength in the same time.
- the best design of the present invention is to provide three ribs with the same interval therebetween that shaft will have the same strength in all directions no matter the handle and the tip engage the shaft in any angle.
Landscapes
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Physical Education & Sports Medicine (AREA)
- Golf Clubs (AREA)
Abstract
A hand-operated stick device (10) includes a gripping portion (14), a working member (16) and an elongated shaft (12) with opposite ends connecting the gripping portion (14) and the working member (16). The shaft (12) has a wall thickness (T) and at least three ribs (13) projected from an inner side (12c) of the shaft (12). The ribs (13) extend from an end of the shaft (12) adjacent to the gripping portion (14) to the other end adjacent to the working member (16). The ribs (13) have a width (W) and a height (H) both of which are greater than or equal to the wall thickness (T). Therefore, it may increase the strength of structure and provide a safe use.
Description
- The present invention relates generally to a device used in ordinary life or sport, and more particularly to a hand-operated stick device and the shaft thereof.
- In some circumstances, using hand-operated stick device for assistance is common and necessary. For example, the walking stick is a necessary device to help an elder or a disabled person to walk, the trekking pole may help the mountain climber or hiker to stably walk and the ski pole may help the skier to ski forward and turn. Other hand-operated stick devices include golf club, hockey stick and other sport goods.
- There is a common character of the stick devices as described above, which is, they have a hollow shaft. The hollow shaft may reduce the weight to decrease the loading when the user operates it. There are two ways to achieve the purpose. The first way is changing material, such as using carbon to replace metallic tube. The second way is using less material. However, under the specific standard of the device, using less material may cause the shaft having a thin wall thickness. Take the carbon ski pole for example, under the requirement of reduction of the weight of the shaft, the weight of the shaft is reduced from 150 grams per meter to 57 grams per meter that the wall thickness of the shaft is reduced to 0.8mm. Such shaft has an insufficient strength that the shaft is easy to be deformed or broken. This may lead the shaft can't be used anymore and may hurt the user. As the shaft is longer, the strength of the structure is weaker. If the shaft has a bent portion, the wall of the shaft at the bent portion is thinner than the rest portion, and the stress will be concentrated here that the shaft is easier to be broken at the bent portion.
- The primary objective of the present invention is to provide a hand-operated stick device and the shaft thereof, which may increase the strength of the structure and provide a safe use.
- According to the objective of the present invention, a hand-operated stick device includes a gripping portion, a working member and a shaft with opposite ends connected to the gripping portion and the working member. The shaft has a wall thickness and at least a rib projected from an inner side thereof. The rib extends from an end of the shaft adjacent to the gripping portion to the other end adjacent to the working member. The rib has a width and a height, and the width and the height are greater than or equal to the wall thickness.
- In an embodiment, the rib includes a plurality of separated rib sections.
- In another embodiment, there are three ribs on the inner side of the shaft with the same interval therebetween. Furthermore, the ribs have their distal ends connected together at a center of the shaft. It may provide any numbers of the ribs on the inner side of the shaft, and the ribs may extend in an axis of the shaft or spirally.
- In addition, the shaft of the hand-operated stick device of the present invention is characterized in that the shaft has a wall thickness and at least three ribs projected from an inner wall thereof. Each rib has a width and a height, both of which are greater than or equal to the wall thickness.
-
-
FIG. 1 is a perspective view of the hand-operated stick device of a preferred embodiment of the present invention; -
FIG. 2 is a sectional view along the 2-2 line ofFIG. 1 ; -
FIG. 3 is an enlarged sectional view of the shaft of the preferred embodiment of the present invention, showing the ribs extending along the axis of the shaft; -
FIG 4 is similar toFIG. 2 , showing the ribs having curved cross section. -
FIG 5 is similar toFIG. 3 , showing the spiral ribs; -
FIG. 6 is similar toFIG. 3 , showing the rib having separated rib sections; -
FIG. 7 is similar toFIG. 2 , showing four ribs on the shaft; and -
FIG. 8 is similar toFIG. 2 , showing the ribs having their distal ends connected together at the center of the shaft. - The hand-operated stick device of the present invention may be a walking stick, trekking pole, ski pole, golf club, hockey stick and so on. These devices have a common structure including a gripping portion, a working member and a shaft connecting the gripping portion and the working member. It is noted that the shape and structure of the working member is various according to the purpose of the stick device. For example, when the stick device is a walking pole, the working member will be a tip for against the ground. When the stick device is a golf club, the working member is the golf club head. When the stick device is a hockey stick, the working member is the blade. We take the walking pole for example to describe the hand-operated stick device and the shaft of the present invention in the following description.
- As shown in
FIG. 1 , a hand-operated stick device of the preferred embodiment of the present invention is awalking pole 10, which includes anelongated shaft 12, a gripping portion and a working member. Theshaft 12 is a tapered tubular member. The gripping portion is ahandle 14 fitted to atop end 12a of theshaft 12 to be held by user's hand. The working member is atip 16 fixed to abottom end 12b of theshaft 12 for against the ground. - As shown in
FIG. 2 andFIG. 3 , theentire shaft 12 has the same wall thickness T. Theshaft 12 has a plurality ofribs 13 projected from aninner side 12c thereof. In the present embodiment, theribs 13 extend in an axis of theshaft 12 from thetop end 12a to thebottom end 12b, and there are threeribs 13 with the same interval therebetween. - As shown in
FIG. 2 , eachrib 13 has a width W and a height H. The width W is a distance between two points of therib 13 connecting theinner side 12c of theshaft 12, and the height H is the shortest distance between the highest point of therib 12 and theinner wall 12c. Under the basis of above, the cross section of therib 13 may be rectangular as shown inFIG. 2 or curved shaped as shown inFIG. 4 . No matter what kind of the shape theribs 13 are, the width W of therib 13 must be greater than or equal to the wall thickness T of theshaft 12, and the height H is greater than or equal to a wall thickness T as well. Under the specific standard and reduction of material, theribs 13 may increase a toughness of theshaft 12 to resist deformation that theshaft 12 will not be broken easily and have a high safety, furthermore, it may achieve the purpose of reducing the loading of user and easy to operate. In the same principle, theshaft 12 of the hand-operated stick device of the present invention may be applied in walking stick, trekking pole, alpenstock, golf club or hockey stick that may provide the same function. - It is noted that the
ribs 13 have the same interval therebetween to evenly disperse the force exerted on theshaft 12 and to avoid the concentration of the force to break theshaft 12. In the present embodiment, threeribs 13 with the same interval are the best design. The main reason is that the strengths in all directions will be the same when thehandle 14 or thetip 16 engaging theshaft 12 in any angle. - There are several equivalent structures that may achieve the same purpose of the present invention.
- In
FIG. 5 , it shows ashaft 20 havingspiral ribs 22. - In
FIG. 6 , ashaft 30 hasseveral ribs 32 extending in the axis of theshaft 30. Eachrib 32 has several separatedrib sections 32a. The region having therib sections 32a is defined as an enhanced region, and the region without therib section 32a is defined as flexible region. The flexible regions may provide the shaft 30 a flexibility. Take the golf club for example, the flexible regions of theshaft 30 may cause theshaft 30 to flex and absorb the shake when a golfer swings the golf club to hit a ball. -
FIG. 7 shows ashaft 40 having fourribs 42 with the same interval therebetween. Theribs 42 may extend in the axis or in the spiral direction, or theribs 42 may be constructed by separated rib sections. -
FIG. 8 shows ashaft 50 havingseveral ribs 52 with their distal ends connected together at a center of theshaft 50. - Finally, under the requirement of a light shaft, the present invention provides the shaft having the ribs with the width W greater than or equal to the wall thickness T, and the height greater than or equal to the wall thickness T also that the shaft will have a great toughness and compressive strength in the same time. The best design of the present invention is to provide three ribs with the same interval therebetween that shaft will have the same strength in all directions no matter the handle and the tip engage the shaft in any angle.
- The description above is a few preferred embodiments of the present invention and the equivalence of the present invention is still in the scope of the claim of the present invention.
Claims (10)
- A hand-operated stick device (10), comprising:a gripping portion (14);a working member (16); andan elongated shaft (12) having opposite ends connected to the gripping portion (14) and the working member (16); the shaft (12) having a wall thickness (T) and a plurality of ribs (13) projected from an inner side (12c) thereof, wherein each of the ribs (13) has a width (W) and a height (H), and the width (W) and the height (H) are greater than or equal to the wall thickness (T).
- The hand-operated stick device (10) as defined in claim 1, wherein the rib (32) has a plurality of separated rib sections (32a).
- The hand-operated stick device as defined in claim 1 or claim 2, wherein the shaft (12) has three ribs (13) on the inner side (12c) thereof with the same interval therebetween.
- The hand-operated stick device (10) as defined in claim 3, wherein distal ends of the ribs (52) are connected together at a center of the shaft (50).
- The hand-operated stick device (10) as defined in claim 3, wherein the ribs (13) extend in an axis of the shaft (12).
- The hand-operated stick device as defined in claim 3, wherein the ribs (22) are spiral.
- A shaft (12) of a hand-operated stick device (10), characterized in that the shaft (12) has a wall thickness (T) and at least three ribs (13) projected from an inner side (12c) thereof, and each of the ribs (13) has a width (W) and a height (H) greater than or equal to the wall thickness (T).
- The hand-operated stick device as defined in claim 7, wherein the rib (32) has a plurality of separated rib sections (32a).
- The hand-operated stick device as defined in claim 7 or claim 8, wherein the shaft (12) has three ribs (13) on the inner side (12c) thereof with the same interval therebetween.
- The hand-operated stick device as defined in claim 7, wherein distal ends of the ribs (52) are connected together at a center of the shaft (50).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP11177762A EP2559353A1 (en) | 2011-08-17 | 2011-08-17 | Hand-operated stick device and the shaft thereof |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP11177762A EP2559353A1 (en) | 2011-08-17 | 2011-08-17 | Hand-operated stick device and the shaft thereof |
Publications (1)
Publication Number | Publication Date |
---|---|
EP2559353A1 true EP2559353A1 (en) | 2013-02-20 |
Family
ID=45571313
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP11177762A Withdrawn EP2559353A1 (en) | 2011-08-17 | 2011-08-17 | Hand-operated stick device and the shaft thereof |
Country Status (1)
Country | Link |
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EP (1) | EP2559353A1 (en) |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2001039847A1 (en) * | 1999-12-01 | 2001-06-07 | John Jacob Peter Beljon | Tubular golf club shaft |
US20040128798A1 (en) * | 2003-01-03 | 2004-07-08 | D.B. Consolidated Enterprises, Inc. | Hand grip attachment |
US20070173345A1 (en) * | 2006-01-20 | 2007-07-26 | Aldila, Inc. | Golf club shaft and method of producing the same |
US20110073244A1 (en) * | 2009-09-25 | 2011-03-31 | Sri Sports Limited | Tubular body |
CA2689868A1 (en) * | 2010-01-08 | 2011-07-08 | Daniel Baroux | Hockey sticks and method of manufacture thereof |
-
2011
- 2011-08-17 EP EP11177762A patent/EP2559353A1/en not_active Withdrawn
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2001039847A1 (en) * | 1999-12-01 | 2001-06-07 | John Jacob Peter Beljon | Tubular golf club shaft |
US20040128798A1 (en) * | 2003-01-03 | 2004-07-08 | D.B. Consolidated Enterprises, Inc. | Hand grip attachment |
US20070173345A1 (en) * | 2006-01-20 | 2007-07-26 | Aldila, Inc. | Golf club shaft and method of producing the same |
US20110073244A1 (en) * | 2009-09-25 | 2011-03-31 | Sri Sports Limited | Tubular body |
CA2689868A1 (en) * | 2010-01-08 | 2011-07-08 | Daniel Baroux | Hockey sticks and method of manufacture thereof |
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