JPH0517092Y2 - - 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 device relates to a wrist angle adjustment device used in bowling that effectively prevents the pins from tipping over by changing the angle of the wrist. A connecting rod is provided protruding from the top of the connecting rod, and the tips of the connecting rods are connected with a fixing plate.A wrist stopper plate is provided on one side of the connecting rod, and a band for attachment is attached to the other side. An angle adjustment plate is provided, and a wrist angle forcing plate is provided in front of this angle adjustment plate, extending from the arm of the hand to the fingers.The lower edge of this angle forcing plate is curved, and both ends are attached to both ends of the angle adjustment plate. It is attached pivotably and can be raised and lowered freely, and a protruding piece is provided at the center of the lower edge of the angle forcing plate, and this protruding piece is removably engaged with the angle adjusting plate. A mounting band is attached to the top surface.

(d) Embodiment and operation An example of the implementation of the present invention will be explained below with reference to the drawings.

In the figure, 1 is a forearm pad with cushion material 2 pasted on the back and slightly curved.

3 is a connecting rod protruding from the front of the plate 1 in an inverted U shape.

4 is a fixed plate fixed to the connecting rod 3.

Reference numeral 5 denotes a wrist stopper plate, which is attached to one side of the connecting rod, the lower end of which is bent upward, and a cushion material 6 is provided on the lower surface.
The tip thereof is placed on the back surface of the fixing plate 4.

Reference numeral 7 denotes a mounting portion for a wrist tightening band 8 provided on the other side of the connecting rod 3 in correspondence with the contact plate 5.

Reference numeral 9 denotes an angle adjustment plate provided on the upper surface of the fixed plate 4 in a slightly curved manner.

Reference numeral 10 is a rectangular frame body which is supported by a horizontal shaft 12 having a spring 11 mounted on the upper surface of the angle adjustment plate 9 so as to be movable up and down.

Reference numeral 13 denotes an arc-shaped guide hole provided on the outside of the lower part of the frame body 10, into which a locking screw 14 is fitted.

Reference numeral 15 denotes a screw shaft attached to the inner central part of the frame 10, and a nut 16 is provided on the screw shaft so as to be freely movable.

Reference numeral 17 denotes a notch provided on the upper edge of one side of the frame 10, into which the bent portion 19 of the extension portion of the lever 18 penetrating the wall surface of the frame 10 can be freely engaged and disengaged.

Note that 20 is a spring attached to the lever 18.

Reference numeral 21 denotes an angle forcing plate, which is slightly curved in front of the angle adjusting plate 9 and covers from the clasp to the fingers of the hand;
In addition, the lower edge is curved and both ends thereof are pivotally connected to both ends of the angle adjustment plate 9.

Reference numeral 22 denotes a protrusion protruding from the center of the lower edge of the angle forcing plate 21, and is provided in correspondence with the nut 16 screwed onto the screw shaft 15.

23 is a cushion material provided inside the angle forcing plate 21.

Reference numeral 24 denotes a mounting band provided on the upper surface of the angle forcing plate 21.

Since the present invention is constructed as described above, when throwing a bowling ball using the wrist angle adjuster according to the present invention, the forearm stop plate 1 is placed on the back of the forearm, and the wrist After positioning the angle adjustment plate 9 on the back and positioning the angle force plate 20 in front of the angle adjustment plate 9 so as to cover the area from the arm of the hand to the fingers, the angle adjustment plate 9 is used for tightening. The device is attached to the wrist using a band 8, and the angle forcing plate 21 is attached to the arm of the hand using an attachment band 24 before starting throwing. The lower edge center of the angle forcing plate 21 is adjusted by adjusting the nut 16, which is fitted in a vertically movable manner to the screw shaft 15 provided at the center of the interior of the frame body 10, which is attached to the upper surface of the frame body 10 so as to be able to rise and fall freely. After adjusting the degree of grip of the ball by adjusting the undulation of the protruding piece 22 protruding from the part, the lower part of the frame 10 attached to the upper surface of the angle adjustment plate 9 located on the upper surface of the fixed plate 4 so as to be freely undulating is attached to the outside. Loosen the set screw 14 fitted into the formed arc-shaped guide hole 13, and rotate the angle adjustment plate 9 to the right or left depending on the position of the pin and the lane condition. Adjust the angle of the angle force plate 21 linked to the angle force plate 9 to the right or left to forcibly adjust the angle of the wrist, and stabilize the angle force plate 21 on the wrist using the mounting band 24. If you start throwing from , you can rotate the pin both horizontally and vertically at the desired rotational speed, making it possible to overturn the pin accurately.

The extension of the lever 18 that passes through the side plate of the frame body 10 is bent, and the bent part can be freely engaged and detached from a notch 17 provided at the upper edge of the side plate of the frame body by the action of a spring 20. Since they are engaged, when the lever 18 is operated, the engagement between the bent part and the notch part is released, and the frame body 10 is raised upward by the action of the spring 12, so that the nut 16 screwed onto the screw shaft 15 is removed. The engagement with the protruding piece 22 provided on the lower edge of the angle forcing plate 21 is disengaged, and the angle forcing plate 21, whose left and right ends are pivotally connected to both ends of the angle adjusting plate 9, can freely rise and fall around the pivoting part. Since the forced angle is released, in this state, the fingertips can be used freely, and the angle forcing plate 21 can be folded inside the angle adjusting plate 9, making it easy to clean up after use. It is something that can be done.

(e) Effects of the invention As described above, this invention allows you to control the ball by forcibly changing the angle of the wrist by adjusting the angle of the continuous angle forcing plate by operating the angle adjustment plate located on the back of the wrist. Since it is possible to easily apply horizontal or vertical rotation to the ball, the angle can be adjusted in advance according to the position of the pin that is about to fall or the distribution of oil applied to the lane before attempting to throw the ball. By forcibly changing the angle of the wrist to the right or left by adjusting the board, it is possible to accurately and easily tip the pins, so it is a great wrist angle adjustment tool that is indispensable for bowling enthusiasts. It is effective.

[Brief explanation of the drawing]

FIG. 1 is a side view of the angle adjuster according to the present invention. FIG. 2 is a plan view of the same. In the figure, 1 is a stop plate, 2 is a cushion material, 3 is a connecting rod, 4 is a fixed plate, 5 is a stop plate for the wrist, 9 is an angle adjustment plate, 10 is a frame body, 11 is a spring, and 12 is a side Shaft, 13 is a guide hole, 14 is a locking screw, 14' is a screw shaft, 17 is a notch, 18 is a lever, 19 is a bent part, 20 is a spring, 21 is an angle forcing plate, 22
is a protrusion.

Claims (1)

[Scope of utility model registration request] A connecting rod bent in an inverted U shape is provided protruding in front of the slightly curved forearm backing plate with cushioning material pasted on the back side, and a fixing plate is provided on this connecting rod, and a lower end is attached to one side of the connecting rod. A wrist abutment plate is bent upward and a cushion material is attached to the bottom surface, and the tip thereof overlaps the back side of the fixed plate, and a mounting part is provided on the other side in correspondence with the above abutment plate, thereby tightening the wrist. Attach a band for the purpose, attach a slightly curved angle adjustment plate to the top of the fixed plate, and attach a rectangular frame to the top of the angle adjustment plate, which can be raised and lowered by supporting a horizontal shaft covered with a spring. An arc-shaped guide hole is bored on the outside of the lower part of the frame, into which a set screw is slidably fitted, and a threaded rod is installed vertically in the center of the inside of the frame, and a nut is inserted into the hole so that it can be raised and lowered. are screwed together, and a hook-shaped notch is provided on the upper edge of one side of the frame, and the bent part of the extension of the lever that passes through one side wall of the frame is removably engaged in this notch. In front of the angle adjusting plate, there is provided an angle forcing plate which is slightly curved and covers the finger from the chin of the hand, and the lower edge of this angle forcing plate is curved so that the end thereof The adjustment plate is pivotally attached to both ends of the adjustment plate so that it can be raised and lowered freely, and a protruding piece is provided at the center of the lower edge of the angle forcing plate in correspondence with the nut screwed into the screw rod, and a cushion material is attached to the inside and the top surface is is a wrist angle adjustment device used for bowling that has a mounting band.