JPH0517093Y2 - - Google Patents

Description

[Detailed explanation of the invention] (a) Industrial application field This invention is used in bowling to speed up the rotation of the ball depending on the position of the pin and the condition of the lane, or to change the direction of rotation of the ball horizontally or vertically. This invention relates to a wrist angle adjuster used in bowling that makes pin falling effects accurate by easily and forcibly adjusting the direction and other directions.

(b) Conventional technology and problems to be solved by the present invention Conventionally, there have been wrist protectors that allow the player to fully grasp the ball used for bowling and prevent strain on the wrist when throwing the ball. This type of device was designed to ensure perfect grip on the ball and prevent wrist irritation, but it was not possible to easily speed up the ball's rotation or change the direction of the ball's rotation.

(c) Means for solving the problem In view of the above problem, the present invention has been developed to speed up the rotation of the ball during throwing and change the direction of rotation by adjusting the angle of the wrist according to the position of the pin or the condition of the lane. This is a wrist angle adjustment device used for bowling that makes the pins fall more effectively by changing the angle.

That is, the forearm abutment plates are integrally fixed to the right side and the rear end of the board, the left or right sides of the abutment plates are curved inward, and a cushion material is pasted on the back side of the forearm abutment plates, and the right side of the board is curved inward. A stop band for mounting is connected to the top surface, an angle adjustment chamber is provided on the top surface so as to be rotatable around a support shaft, and guide holes are provided in the left and right side walls of the front end of this angle adjustment chamber in an arcuate manner. The rear end of a frame-shaped connecting member is fitted so that it can move forward and backward by being guided through the guide hole, and a projecting piece is provided at the center of the rear end of this connecting member, and the front end is made to protrude forward. Fix the plate that covers the upper surface of the hand clasp to this part,
A guide hole for a locking screw is provided in an arc shape at the rear end of the angle adjustment chamber, and angle adjustment teeth are provided at the outer side of the hole to engage the bent end portion of the adjustment lever. An adjusting screw is provided on the screw rod, a mounting plate is fitted above and below this screw rod, a guide pin is provided on the front and back of this mounting plate with the adjusting screw in between, and the guide pin is fitted to the guide pin and is screwed to the adjusting screw. A lifting rod is provided, the tip of which is removably connected to a protrusion protruding from the rear end of the frame-shaped connecting member, and is engaged with the rear end of the mounting plate fitted to the lower part of the adjusting screw rod. a concave portion is provided, the tip of the leaf spring is engaged in the concave portion, and a boss integrally provided on the top surface of an adjustment screw rod and a mounting plate fitted to the top of the screw rod is protruded from the top surface of the angle adjustment chamber; This is a wrist angle adjustment tool used for bowling, with a knob for operating the screw fixed at the upper end of the adjusting screw, and a rotary lever of the support plate fixed to the boss.

(d) Examples and effects An example of implementing the present invention is as follows.

1 in the figure is the board.

Reference numeral 2 denotes a forearm abutment plate fixed to the left side and rear end of the base plate 1, the left side and right side of which are curved inward, and a cushion material 3 is pasted to the back surface thereof.

4 is a fastening band connected to the right side of the board 1 for mounting.

Reference numeral 5 denotes an angle adjustment chamber rotatably provided on the upper surface of the substrate 1 about a support shaft 6. An arcuately curved guide hole 7 is provided on both left and right walls of the front end of the angle adjustment chamber 5, and the angle adjustment chamber 5 is guided through the guide hole 7. The rear end of a frame-shaped connecting member 8 is engaged so that the connecting member 8 can move forward and backward, and a protruding piece 10 is provided protruding from the center of the rear end of the connecting member 8, and the front end is made to protrude forward. A backing plate 11 is provided to cover the upper surface of the fingers from the chin of the hand, and the right side of this backing plate 11 is curved inward, and a cushion material 11' is pasted to the back surface, and a cushioning material 11' is attached to the left side. A band 4' is provided.

Reference numeral 12 denotes an arc-shaped guide hole for a set screw 13 provided at the rear end of the angle adjustment chamber 5, and an angle adjustment tooth 14 is provided at an outer position of the guide hole, into which the tip bent portion 16 of the adjustment lever 15 is engaged. There is.

Reference numeral 17 denotes an adjustment screw provided vertically inside the angle adjustment chamber 5. Mounting plates 18 and 19 are fitted above and below this screw.
A guide pin 20 is provided between the two.

Reference numeral 21 is an elevating rod that fits into the guide pin 20 and is also screwed into the adjusting screw rod 17, the tip of which is removably connected to a protrusion 10 protruding from the rear end of a frame-shaped connecting member 18.

22 is a mounting plate 19 provided at the bottom of the adjustment screw 17
An engagement recess provided at the rear end of the plate spring 23 is engaged with the distal end of the leaf spring 23.

Reference numeral 25 denotes a knob for operation and is fixed to the upper end of the adjusting screw 17 protruding from the upper surface of the angle adjusting chamber 5.

Reference numeral 26 designates a rotating lever of the upper support plate 18, and its upper end is attached to a boss 27 that is integrally provided on the mounting plate 18 that fits on the upper part of the adjustment screw 17.

Since the present invention is constructed as described above, when starting to throw a bowling ball using the wrist angle adjuster according to the present invention, the angle adjustment chamber 5 is placed on the back of the wrist in advance. Then, the forearm abutment plate 2 fixed to the left side and the rear end of the base plate 1 and having the cushion material 3 attached to the back side is applied to the wrist, and the frame shape protrudes forward from the angle adjustment chamber 5. At the end of the connecting member 8, the right side is curved inward, and the back side of the plate 11 with the cushion material 11' pasted is applied to the upper surface of the arm of the hand, and then the attachment bands 4 and 11 are used. In this method, the adjuster according to the present invention is attached to the position of the forearm and hand so that it does not loosen, and then the ball starts to be thrown. In order to change the way of throwing, it becomes necessary to adjust the angle of the wrist or to free the wrist.

Now, when you want to bend your wrist to the right, operate the lever 15 to move the bent part 16 of the lever that engages the angle adjustment tooth 14 provided at the rear end of the angle adjustment chamber 5 from the angle adjustment tooth 14. If the angle adjustment chamber 5 is detached and rotated to the left around the support shaft 6 provided on the upper part of the board 1, the frame-shaped connecting member 8 protruding forward from the angle adjustment chamber 5 will be angled left and right. As a result, the contact plate 11 attached to the tip of the connecting member 8 and applied to the wrist is also displaced to the right, and the angle of the wrist is accordingly bent to the right.

Also, if you try to bend your wrist to the left,
As described above, when the angle adjustment chamber 5 is rotated to the right around the support shaft 6, the frame-shaped connecting member 8 changes direction to the left, and the wrist can accordingly be bent to the left. It is something.

If you want to bend your wrist downward, operate the operating knob 25 to adjust the angle adjustment screw 1.
7 is rotated, the lifting rod 21 screwed into the screw rod 17 moves upward, so that the protruding piece 10 protruding from the rear end of the frame-shaped connecting member 8 engaged with the tip of the lifting rod 21 is rotated.
is pushed upward, so the rear part of the frame-shaped connecting member 8 is guided by arc-shaped guide holes 7 formed on both left and right walls of the angle adjustment chamber 5 and moves upward, and as a result, the frame-shaped connecting member 8 moves upward. Since the connecting member 8 of the player is bent downward, the wrist of the hand is forcibly pressed by the contact plate 11, so that the wrist bends downward to facilitate support of the ball.

Furthermore, if you want to make it easier to handle the ball by leaving your wrist in a free state rather than forcibly changing the angle of your wrist, you can operate the rotary lever 26 to rotate the boss 25. The upper support plate 18, which is formed as a
8 and a lower support plate 1 linked by a guide pin 20.
Since the guide pin 9 also rotates, the guide pin 20 also rotates and contacts the elevating rod 21 to rotate it.
0, the frame-shaped connecting member 8 becomes free, and the wrist becomes free as well, making it easier to handle the ball.

This free state is stabilized by the engagement of the plate spring 23 with a recess 22 provided at the rear end of the lower mounting plate 19.

(e) Effects of the invention By rotating the angle adjustment chamber to the right or left as described above, the invention allows the wrist angle to be turned either to the right or to the left. In addition, by rotating the operating knob, the angle of the wrist can be bent downward, and by operating the rotating lever, the wrist angle can be made free without being restricted, so the bowling ball can be bent downward. or by increasing the running speed of the ball or changing the direction of rotation of the ball horizontally or vertically depending on the position of the pin or the distribution of oil in the lane during the throwing process. Since the pin can be completely tipped over, this device has a feature that makes it indispensable for bowling enthusiasts as a wrist angle adjustment device used for bowling.

[Brief explanation of the drawing]

FIG. 1 is a plan view of the present invention. Figure 2 is a side view of the same as above. Figure 3 is a partially cutaway plan view. FIG. 4 is a side view showing the main parts of the present invention. In the figure, 1 is the board, 2 is the contact plate, 3 is the cushion,
4 is a mounting band, 5 is an angle adjustment chamber, 6 is a support shaft,
7 is a guide hole, 8 is a frame-shaped connecting member, 10 is a protrusion,
11 is a backing plate, 12 is a guide hole, 13 is a set screw, 1
4 is an angle adjustment tooth, 15 is an adjustment lever, 16 is a bending part, 17 is an adjustment screw rod, 18 is an upper mounting plate, 19 is a lower mounting plate, 20 is a guide pin, 21 is a lifting rod,
22 is an engagement recess, 23 is a leaf spring, 25 is an operating knob, 26 is a rotating lever, and 27 is a boss.

Claims (1)

[Scope of utility model registration request] The forearm pads are integrally fixed to the right side and the rear end of the board, the left or right sides of the pads are curved inward, a cushion material is pasted on the back side, and the pads are attached to the right side of the board. An angle adjustment chamber is provided on the top surface to allow rotation around a support shaft, and guide holes are provided in the left and right walls of the front end of this angle adjustment chamber in an arcuate manner. The rear end of a frame-shaped connecting member is fitted so that it can move forward and backward by being guided through the hole, and a projecting piece is provided at the center of the rear end of this connecting member, and the front end protrudes forward. A contact plate that covers the upper surface of the hand shank is fixed to the rear end of the angle adjustment chamber, and an arc-shaped guide hole for the set screw is provided at the rear end of the angle adjustment chamber, and an angle adjustment tooth is provided at the outer position of the guide hole for the adjustment lever. A vertical adjustment screw is provided inside the angle adjustment chamber, a mounting plate is fitted above and below the screw, and a guide pin is inserted between the front and rear of the mounting plate with the adjustment screw in between. A lifting rod is provided, which is fitted to the guide pin and screwed to the adjustment screw, the tip of which is removably engaged with a protrusion protruding from the rear end of the frame-shaped connecting member, and the adjustment An engagement recess is provided at the rear end of the mounting plate that fits into the lower part of the screw rod, into which the tip of the leaf spring is engaged, and on the upper surface of the angle adjustment chamber, an adjustment screw is fitted into the upper part of this screw rod. A boss integrally provided on the upper surface of the mounting plate protrudes, a knob for operating the screw rod is attached to the upper end of the adjustment screw, and a rotation lever of the support plate is fixed to the boss. It is an angle adjustment tool.