JPH07233803A - Grip attaching device - Google Patents

Abstract

PURPOSE:To easily insert a shaft having an outside diameter larger than the inside dia. of a hollow section into the hollow section of the grip of a golf club which is thin and relatively long. CONSTITUTION:A grip attaching device has a supporting member 5 which receivingly supports the end 61 on a nonopening side of a hollow cylindrical grip 6, and fits a needle pipe 59 in the through hole 61a of the end 61; a port enlarging mechanism 2 to uniformly enlarge the opening part 62 of the grip 6 supported on the supporting member 5 radially outside; and pressing mechanisms 3, 4 to elastically press and support the whole circumference of the outer periphery of the grip 6 in the longitudinal middle part of the grip 6. A golf shaft 7 is inserted from its end part 71 into the opening part 62 of the grip 6 as compressed air is fed in the hollow part of the grip 6 through the needle pipe 59.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for mounting a long and soft grip on a shaft used in a golf club or the like.

[0002]

2. Description of the Related Art Conventionally, when a rubber grip having a hollow cylindrical shape and having one end opened is mounted on a shaft of a golf club or the like, the end of the shaft is manually inserted through the opening of the grip. It is fitted. Since the outer diameter of the shaft is larger than the inner diameter of the hollow portion of the grip, the grip will tighten the shaft after the fitting, and the shaft will not come off easily.

In Japanese Patent Laid-Open No. 5-106616, pores at the non-opening side end of a grip such as ski stock (having a hollow cylindrical portion, one end of which is open) is formed. There is disclosed a method of attaching a grip to the shaft by inserting the end of the shaft such as ski stock from the opening which is the end on the opposite side while feeding the compressed air from the end. According to this method, an air film is formed in the gap between the outer peripheral surface of the shaft and the inner peripheral surface of the grip at the time of the above insertion, which facilitates the insertion. However, when the grip has a long shape such as a golf club, the following problems such as bending occur and the mounting becomes difficult.

[0004]

In the method of manually attaching the grip to the shaft of a golf club or the like, the outer diameter of the shaft is larger than the inner diameter of the grip, so that the insertion is difficult and a great deal of labor is required. In addition, the working time becomes long. In addition, because insertion is difficult,
A solvent is applied to the surface of the shaft to make it smooth, but in that case, equipment and consideration for explosion-proof measures against the solvent are required.

Therefore, there is a demand for easy insertion by using compressed air as disclosed in Japanese Patent Laid-Open No. 5-106616. However, in the case of a golf club, the length of the grip is long so as to be suitable for gripping with both hands, and since the grip is thin, according to the method of JP-A-5-106616, There is a problem that the pressing force at the time of insertion may cause bending at the intermediate portion, or the yarn for reinforcing the grip may pop out due to the pressure of compressed air, resulting in an increase in the defective rate. .

An object of the present invention is to make it possible to easily attach a grip, which is formed in an elongated shape so as to be gripped by both hands, such as a grip of a golf club, to the shaft. It is also an object of the present invention to reduce the defective rate by preventing the reinforcing thread from being bent or popping out at the time of mounting. Another object of the present invention is to eliminate the need for equipment and consideration for explosion-proof measures against solvents.

[0007]

SUMMARY OF THE INVENTION The present invention receives and supports a non-opening side end of a hollow cylindrical grip having one end open, and a through hole provided in the non-opening side end. A support member into which a dollar pipe (a pipe having a small inner diameter and open at both ends) is fitted; and an opening means for expanding the opening of the grip supported by the support member,
Pressing means for elastically pressing and supporting the outer peripheral surface of the grip in at least a part of the longitudinal direction of the grip, and sending compressed gas (compressed air etc.) into the hollow through the needle pipe. Meanwhile, the grip is attached to the shaft by inserting the end of the shaft from the opening.

[0008]

When the non-open side end of the grip is supported by the support member, the tip of the needle pipe is fitted into the through hole of the non-open side end of the grip. Next, the opening of the grip is expanded by the expanding means, and the shaft is inserted through the opening while sending the compressed gas to the hollow part of the grip through the needle pipe, and the compressed gas is compressed into the outer peripheral surface of the shaft and inside the grip. It leaks to the outside from the opening through the gap with the peripheral surface. That is, there is no contact between the outer peripheral surface of the shaft and the inner peripheral surface of the grip. Further, at this time, since the grip swelled by the pressure of the compressed gas is elastically pressed and supported by the pressing means at the outer peripheral surface at an appropriate position in the longitudinal direction, the grip may be bent by the pressing force at the time of insertion. It is possible to prevent the reinforcing thread from popping out.

[0009]

EXAMPLES Examples of the present invention will be described below. FIG. 1 is a partial vertical cross-sectional view of the apparatus of the embodiment in the longitudinal direction, FIG. 2 is a top view, FIG. 3A is a view of the support mechanism 5 seen from the left side in FIG. 1, and FIG. 1 is a partial vertical cross-sectional view of the portion 3 or the air gripper portion 4 as viewed from the left side, and FIG. 4 is a vertical cross-sectional view of the opening mechanism 2 taken along the line C--C in FIG.

In this apparatus, a support mechanism 5, a support mechanism 5,
Air gripper part 4, air gripper part 3, and opening mechanism
2 are arranged in order from the left side in FIG.

(1) Support mechanism 5 The support mechanism 5 is a member for receiving the non-opening side end portion 61 of the grip 6 and horizontally supporting it. In this support state, the tip of the needle pipe 59 of the support mechanism 5
6 is fitted into the through hole 61a at the end portion on the non-opening side. At the other end of the needle pipe 59, an end of a tube 59a connected to a compressed air delivery mechanism (not shown) is connected to a joint 59b.
Are communicated via.

The support mechanism 5 is provided on the base 10 as follows. First, the long hole 52 that is long in the longitudinal direction of the device.
The bolt 15 fixed to the base 10 is inserted into the elongated hole 52a of the support plate 52 having a. Therefore, the support plate 52
Can be moved in the longitudinal direction of the apparatus within a range determined by the length of the long hole 52a. A supporting plate 53 is fixed to the upper end surface of the standing plate portion 52b of the supporting plate 52 with bolts 54.
55 is fixed.

The receiving member 55 has a substantially cylindrical shape, and has a hollow portion 55a having a cylindrical shape at the left side portion in FIG. This hollow part 55
The end of the tube 59a and the joint 59b are provided in a. A through hole is formed in the center of the bottom surface of the hollow portion 55a, and the needle pipe 59 is inserted into the through hole. Further, a bottom-extending cylindrical recess 55b is formed in the right side portion of the receiving member 55 in FIG. 1, and the non-open side end 61 of the grip 6 is fitted and supported in the recess 55b. .

A sliding piece 51 is fixed by a bolt 56 to the center of the bottom surface of the horizontal plate portion 53a of the support plate 53. This sliding piece 51 is long in the longitudinal direction of the device, and its bottom is
A recess 51a having a U-shaped cross section extending in the longitudinal direction of the apparatus is provided, and the slide guide 11 is engaged with the recess 51a. The sliding guide 11 is provided at the center of the upper surface of the base 10 so as to extend in the longitudinal direction of the apparatus.

Therefore, the support mechanism 5 has the long hole 52a.
Within the range determined by the length of the device, it is slidable in the longitudinal direction of the device by being guided by the sliding guide 11.

(2) Air gripper portions 4,3 The air gripper portions 4,3 elastically press and support the entire outer peripheral surface of the intermediate portion of the grip 6 supported by the support mechanism 5, The bend of Grip 6
This is a member for preventing the reinforcing thread from jumping out. For this reason, the air gripper portions 4 and 3 are provided at positions where the above functions can be achieved in the longitudinal direction of the present device. The air gripper portion 3 will be described below, but the air gripper portion 4 is exactly the same.

The air gripper portion 3 has a hollow air gripper 39 having a ring shape, and the ring inner peripheral portion 39a of the air gripper 39 is made of an elastic rubber material. Also,
A tip portion of a tube 39b is communicated with the hollow portion of the air gripper 39, and the other end portion of the tube 39b is connected to a compressed air delivery mechanism (not shown). The upper left part of FIG. 3B is a view of the tube 39b viewed from the direction of arrow E in the drawing.

The air gripper section 3 has a base as follows.
It is provided on 10. First, the bolt 13 fixed to the base 10 is inserted into the long hole 32a of the support plate 32 having the long hole 32a long in the longitudinal direction of the present apparatus. Therefore, the support plate 32 is movable in the longitudinal direction of the device within a range determined by the length of the long hole 32a. A support plate 33 is fixed to the upper end surface of the standing plate portion 32b of the support plate 32 with a bolt 34. An air gripper 39 of is supported.

Further, a sliding piece 31 is fixed by a bolt 36 at the approximate center of the bottom surface of the horizontal plate portion 33a of the support plate 33. The sliding piece 31 is long in the longitudinal direction of the device, and its bottom is
A concave portion 31a having a U-shaped cross section extending in the longitudinal direction of the apparatus is provided, and the sliding guide 11 is engaged with the concave portion 31a.

Therefore, the air gripper portion 3 is slidable in the longitudinal direction of the apparatus by being guided by the sliding guide 11 within a range determined by the length of the long hole 32a.

(3) Expansion mechanism 2 The expansion mechanism 2 uses the three pawls 29 (29a, 29b, 29c) to open the opening 62 of the grip 6 supported by the support mechanism 5 from the outer peripheral surface side. It is a member for pressing and positioning. In addition, the opening 62 of the grip 6 is provided with the above-mentioned three claws 29 (29a, 29a).
b, 29c) is a member for facilitating insertion of the end portion 71 of the shaft 7 of the golf club by pressing and expanding from the inner peripheral surface side.

The expanding mechanism 2 is provided on the base 10 as follows, and the three claws 29 (29a, 29a) as described above are provided as follows.
b, 29c) is configured to operate. First, the support plate 21 is fixed on the base 10 by the bolts 12. The support plate 21 rotatably supports the rotation shaft 22 so as to face a direction (horizontal direction) perpendicular to the plane of FIG. The rotating shaft 22 is rotated by a lever 220 connected to its end (the right end in FIG. 4A). It is to be noted that (b) of the same figure is a view of the lever 220 as viewed in the direction of the arrow D in the figure.

Cylinders 23a, 23c, 23b are fitted on the peripheral surface of the rotary shaft 22, and each cylinder 23a, 23c, 23b is a key 23a.
It is configured to be rotated integrally with the rotation shaft 22 via k, 23ck, and 23bk.

Bevel gears are provided on the outer ends of the cylinders 23a and 23b, respectively.
23ag, 23bg are formed, and each bevel gear 23ag, 23bg is
Bevel gears 24 formed on the outer ends of the cylindrical bodies 24a and 24b, respectively.
It is meshed with ag and 24bg respectively. Therefore, the rotating shaft 22
When the cylinders 23a and 23b are rotated together, the cylinders 24a and 24b are also rotated integrally.

The cylindrical bodies 24a and 24b are fitted on the rotary shafts 25a and 25b via the keys 24ak and 24bk, respectively.
Cylindrical bodies 26a and 26b are fitted on the peripheral surface of the extended portion of b. The cylinders 26a and 26b are keyed to the keys 26ak and 26bk, respectively.
Through the rotation shafts 25a and 25b, respectively. The claws 29a and 29b are integrally supported by the cylinders 26a and 26b, respectively, and the claw 29c is integrally supported by the cylinder 23c.

For this reason, when the lever 220 is operated to rotate the rotary shaft 22, the rotational force of the rotary shaft 22 is changed from the cylinder 23a → the cylinder 24a → the rotary shaft 25a → the cylinder 26a → the claw 29a. Cylinder 23b → Cylinder 24b → Rotating shaft 25b → Cylinder 26b → Claw 29b, Cylinder 23c → Claw
29c, the claws 29a, 29b, 29c are rotated together with the rotating shaft 22, respectively. In addition, each of the claws 29a,
29b and 29c are provided in a positional relationship such that an equilateral triangle is formed by the rotating shafts 22, 25a and 25b.

(4) Grip mounting method A grip which can more remarkably enjoy the effect of the present device (the effect of preventing bending at the time of insertion and protrusion of the reinforcing thread) is
The length is about 15 to 40 [cm], the thickness is about 1 to 10 [mm], and the main material is elastomer, synthetic resin, or the like, which is an elastic grip. However, it is needless to say that even if the grip does not fall within this range, the use of the present device makes it possible to enjoy other effects (effect of easily inserting the shaft) other than the above. A double-sided tape (not shown) is appropriately adhered (including the entire outer peripheral surface) to the outer peripheral surface of the shaft 7, but it is not necessary to apply a solvent.

First, the support mechanism 5 is moved to the left in FIG. 1, and the non-opening side end portion 61 of the grip 6 is fitted and supported in the recess 55b of the receiving member 55 of the support mechanism 5. Also, by being supported in this way, the end of the grip 6 on the non-opening side is
A needle pipe 59 is fitted in the through hole 61a of the needle 61.

Next, the support mechanism 5 is moved to the right in FIG. Initially, the claws 29a, 29b, 29c are expanded to the maximum, so that the opening side end portion 62 of the grip 6 enters the inside of the claws 29a, 29b, 29c. In this state, the claws 29a, 29b, 29c are narrowed,
As a result, the opening-side end portion 62 of the grip 6 is pushed and positioned by the claws 29a, 29b, 29c from the outer peripheral surface side thereof.

Next, the air gripper is passed through the tube 39b.
Compressed air is fed into the hollow part of 39. As a result, the ring inner peripheral portion 39a of the air gripper 39 expands radially inward, and elastically presses and supports the outer peripheral surface of the grip 6 provided in the ring. The same applies to the air gripper section 4.

Next, the support mechanism 5 and the air gripper parts 3, 4
However, once it is moved to the left in FIG. 1, it is again moved to the right in FIG. Thereby, the claws 29a, 29b, 29c are, for example, 7 to 8 in the opening of the opening side end portion 62 of the grip 6.
Enter about [mm]. In this state, the lever 220 is operated and the claws 29a, 29b, 29c are expanded. This makes the grip 6
The opening-side end portion 61 is pushed by the claws 29a, 29b, 29c from the inner peripheral surface side, and the opening portion 62 is expanded.

Next, compressed air is sent into the non-open end 61 of the grip 6 through the needle pipe 59. At the same time, the end 71 side of the shaft 7 is inserted into the opening 62 of the grip 6. As a result, a layer of compressed air is formed between the inner peripheral surface of the grip 6 and the outer peripheral surface of the shaft 7. Therefore, the shaft 7 is inserted into the hollow portion of the grip 6 without receiving frictional resistance from the inner peripheral surface of the grip 6.
Also, since the grip 6 is pushed by the shaft 7 and slightly displaced to the left in FIG. 1 at the time of this insertion, the claws 29a, 29b, 29c.
Comes off Grip 6.

In this state, when the shaft 7 is further inserted into the grip 6 and the end 71 thereof reaches the bottom of the hollow portion of the grip 6, the supply of compressed air is stopped. As a result, the inner peripheral surface of the grip 6 is brought into close contact with the outer peripheral surface of the shaft 7, and the both are adhered to each other by a double-sided tape (not shown).

In the above embodiment, two air gripper parts (air gripper part 3 and air gripper part 4) are used, and the distance between the centers of the air gripper parts 3 and 4 is 5
Although it is set to about 0 to 100 [mm], this can be appropriately increased or decreased depending on the length and material of the grip to be attached.
For example, three air gripper portions may be used and the intervals between the air gripper portions may be set to be slightly shorter than the above numerical values. Further, the length of the air grippers 39, 49 of each air gripper portion (the length in the longitudinal direction of the device) can be appropriately changed. Further, the installation position of each air gripper portion (position in the longitudinal direction of the device) can also be set to an appropriate position so as to meet the object of the present invention.

For example, the grip 6 can be supported by using three or more air gripper portions in which the length of the air gripper 39 (49) is shorter than that in the above embodiment. In that case,
The grip 6 can be evenly pressed and supported, and the support position of the grip 6 can be adjusted precisely. The supply of compressed air to each air gripper may be controlled independently. Further, the grip 6 can be configured to be supported by using only one air gripper portion in which the length of the air gripper 39 (49) is longer than that in the above embodiment. In that case, the number of parts can be reduced.

In the above embodiment, the opening mechanism 2 has three pawls, but the number is not limited to three. That is, the number of the openings 62 of the grip 6 may be two or four or more as long as the openings 62 can be evenly spread. Also, the operation of lever 220 to operate the claw,
It does not have to be done manually.

[0037]

As described above, in the present invention, since the opening of the grip is expanded by the expansion means, the end of the shaft can be easily inserted. Further, since a layer of compressed gas is formed between the outer peripheral surface of the shaft and the inner peripheral surface of the grip, it can be inserted with a small force. Therefore, it is not necessary to apply a solvent to the surface of the shaft at the time of insertion, and neither explosion-proof equipment nor consideration for the solvent (handling in handling) is required. Further, although the compressed gas expands by applying pressure to the grip, the grip is bent at the middle portion because the outer peripheral surface of the grip is elastically pressed and supported by the pressing means at an appropriate portion in the longitudinal direction. It is also possible to prevent the reinforcing thread from popping out.

[Brief description of drawings]

FIG. 1 is an explanatory view showing a partial vertical cross section of a device of an embodiment in a longitudinal direction.

FIG. 2 is a top view of the apparatus according to the embodiment.

3A is a view of the supporting mechanism 5 of the embodiment apparatus seen from the direction of arrow A in FIG. 1, and FIG. 3B is a view of the air gripper portion 3 of the embodiment apparatus seen from the direction of arrow B of FIG. Partial vertical section.

FIG. 4 is a vertical cross-sectional view (a) showing the opening mechanism 2 of the embodiment apparatus taken along the line C-C in FIG. 1, and a view of the lever 220 viewed from the direction D of the arrow in FIG. ).

[Explanation of symbols]

 10 Base 11 Sliding Guide 2 Expanding Mechanism 3 Air Gripper 4 Air Gripper 5 Support Mechanism 6 Grip 7 Shaft

Claims (1)

[Claims] 1. A support member for receiving and supporting a non-opening side end of a hollow cylindrical grip having one end opened, and fitting a middle pipe into a through hole provided in the non-opening side end. An opening means for expanding the opening of the grip supported by the support member, and a pressing means for elastically pressing and supporting the outer peripheral surface of the grip at least in a part of the grip in the longitudinal direction. A grip mounting device for mounting a grip on the shaft by inserting the end of the shaft from the opening while feeding compressed gas into the hollow through the needle pipe.