JPS59164075A - Racket with gut pulling device - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention is a cant tension device 1=1 tennis, squash or badminton game. In general, a racket has a frame (frame) with a ring (string) stretched at a certain tension to form the ball hitting surface, and a racket (a racket) is made of sheep (thousand, intestine) or nylon steel.

It is used as a monofilament of synthetic resin. This force/tension can have an effect on the repulsive force of the old ball and the trade demand, so the user of Rake/1. The tension is selected to achieve the optimum repulsion and feel at impact at 11.

By the way, there is a device that can freely change the tension of the conventional Lakent white one gun, one gun, one gun, two guns), and a device that can freely change the tension. In order to tension the racket to the required tension, you will need a highly skilled IJ device, so it is customary to ask an expert to do so when you first purchase the racket. Also, when using a racket and ILp<, the sheave and synthetic (!) j Uranami's monofilament 1 is a polymer material, so it causes creep phenomenon and stress relaxation, and the tension becomes loose. At the beginning, the user selects the optimal 'AJζ state, and as the tension changes, it has a slight influence on the user's technique, and the amount of play is 41J. In the case of sieve, 1 is hygroscopic and >! i1: Force by degree change.

It is said that it is very rare to be able to use it under strictly optimal conditions due to tension or instability. In such a case, if the racket itself had a built-in device that could freely adjust the string tension, it would be easier even for an amateur to initially tighten the string. 2) Depending on the user's own skill and preference (according to the user's own skills and preferences), the user can freely adjust the force tension according to changes in the force over time and the environment.The present invention It is an objective of the present invention to provide a racket having such convenience.The present invention will be explained below by referring to embodiments of the present invention with reference to the drawings.The racket of the embodiments is as follows: There is no difference in the Tato view from (11r, etc.) and (11r, etc.) shown in Figs. 1 and 2.
From lS2 to 1), it is the result of increasing the force of Y3 to the middle of frame +N61. However, this racket/)・ is the second
Looking at the rAA arrow section 1nI shown in 'lA+, the configuration differs from that of the -shell racket as follows. First, as shown in FIG. 3, the frame part 1 has a groove 5 formed in the axial direction on the outer circumferential part 11, and through holes 6 are formed at the latching position of the seedling 5. The B
-B arrow cross section is shown in FIG.

Further, the grime part 2 connected to the frame part 1 is tubular as shown in FIG. 5, and a tension mechanism 7 is provided at the end thereof. It consists of a combination of a tension machine (iIlr゛7 is a pole with a hooking part 8 at the end) and a nano)H) in the case of -, and it is used to When it is turned, the bolt 9 will move -1-' in the axial direction of the grip part 2.
We will have sex. The racket of this embodiment has one -1-7 wire and the following force/node tension wire 11;
Let it be the missing 4+'X'i component. This tensile wire 11 is the sixth
As shown in the figure, the hook part 8 of the tension mechanism 7 is inserted along the length 5 from the tip 12 (see Figure 3) of the frame part of the main body.
(See Figure 5 +1jj), attach the main line 1; (1145 of the frame part 1) to the main line 13 having the length of the large tree at
) l/ -l, of l! Branch wires 1 and 4 are taken in half the number of through holes 6 at approximately opposite positions with the through holes 6. Jth) 1s15 is provided. In addition, each branch line 1. What is the length of /l for frame 1, part 1? II75
Do 1 between the base of and the sum of forces ゛, l, 3 - 1
The 5.2 tensile line 11, which corresponds to the axis 11, is
When installing it on the main body of Rakeno 1, prepare two wires, pass the technical wires 1, 1 through each through hole 6 along both sides of the main body frame part, and then rig the main wires], ').

The end of the tube is inserted into the tube of the puller 2 and the end thereof is inserted into the hole 9 of the tensioning mechanism 7.
It is hung 11- on the hook part 8 of. In addition, this tensile wire 11
The Lord of all knees! The connecting part of the and branch line 14 is as shown in Fig. 7.
I'li'i It can also be a simple combination (・shi, also the ε;
As shown in the figure, the main line 13 is used as a wabi/board, and the oval hole 16 is placed in the same board.
It may also be constructed by drilling the assimilation IG and connecting the branch wires 1 and 1 to the end of the assimilation IG. When tightening the string on the racket, in conventional rackets, a weight or the like is used to apply a tension of 1V to the string, and the string is passed directly through the hole in the frame. In the example racket, the 41 end 111'j at the tip of the branch wire 1.1 of the tension wire 11 coming out from the through hole () of the frame 1.1.
Following ls 15 and lengthening the bow, there is no need to consider the strength of the tensile force of the gut.

After the Gantt has been stretched in this manner, in order to apply tension to the force node, the tension mechanism 7
, (, 1, turn , etc., turn the port 1,
When the main line 13 of the pull line 11 is hooked to the end hook part 8 of the hole l-9, the main line 13 is tensioned, and the branch line 1. 1 power bow 1 tension will be applied, and this time 11 force will be 71.

It goes without saying that the tensile force on the entire surface of the nut can be freely reduced by rubbing the angle +L of the nut. Incidentally, since the tension line 11 is pulled two times at the same time, no distortion is caused to the frame 1 or the tension line 3. Figures 10 and 11 show the 0-C arrow section rfii in Figure 9 during tension;
The tension line shown in Figure 7 is used, and the latter is when the tension line shown in Figure 8 is used.As can be seen from this Figure 1, the tension line shown in Figure 7 is This is because the main line 13 and the branch lines 14 may overlap or be parallel when tensioned, increasing the friction with the bottom of the groove 5 of the frame 1, and causing the line to become twisted due to twisting, etc. Although this will result in an extra load being applied, such a JW condition can be avoided with the tension wire shown in FIG. The latter can be said to be more reasonable since it is also possible to make it relatively large. In addition, in the sense of reducing the F'1 friction of the branch wires 1...1 as much as possible and reducing the load on the wire of the tension wire 11, :j! As shown in Fig. J12, it is conceivable that the through hole 6 of the frame 1 is bored at an oblique angle from the pulling direction of the pulling wire 11. In this case, as shown in FIG. 13, the contact between the inner surface of the through hole 6 and the branch wire 14 is smooth with respect to the length of the bow. The pond, the first
As shown in Fig. 4, if a slint-shaped window 16 is provided on the side of the grip 2 in the axial direction, the tensile force (41) It is convenient because it can be easily known empirically from the 7th ton). Incidentally, if necessary, it is also advisable to apply the same 1G with transparent θ glass synthetic tit fat. Furthermore, as shown in FIGS. 15 and 16, the frame 1 has grooves formed on its outer peripheral surface □.1! Not only 3 but also
Inner circumferential surface] 7 (here 2 m) 8 can be applied so that the hook of the branch line 1.4 of the pull i1 The racket looks simple in appearance, and is also ideal for reducing excess air resistance when swinging the racket.In this way, the two-force tensioning device (relaxation racket) of the present invention 1.1. The tension of the force can be freely and easily changed in response to changes in the environment (Cr), etc., depending on the skill of the single user.

[Brief explanation of the drawing]

FIG.
Figure j is a perspective view of the main part, Figures 9 and 10 are the main parts,
Cross-sectional view, Figure 1 is a plan view and main part sectional view, Figure 11-1
13 shows a sectional view of the main part 1, FIGS. 1 and 1'1 show a sectional view of the IF facing 1 and the main part, and FIGS. 35 and 16 show a blood cut diagram of the mounting section. Each number in 1 is 1...frame?・Grip 3・Gun) ・・1・Outer surface 5・914
G...1゛■Through hole 7 Tension (private sector δ-・J weighing section 9
・Pol l 10 S/T 11...Tension wire (whole) 1
27 Les 1X section tip 13...Lord! it 14...
Branch line 15, river, stop! fh] 6...pickpocket, window 1°7
・Inner peripheral surface 16・Groove is shown. Patent Application Agent Lawyer Small Translation Figure 5

Claims (3)

[Claims] (1) Cut a groove in the axial direction on the outer peripheral surface of the Freno.
Drill a through hole from the gap to the gap 11-approximate position,
In addition, the grip is made into a tubular shape, and there is a rack/tooth main body with a tension structure provided inside the tube, and a main line extending from the tip of the frame to the groove (along which is the hooking part of the tension rock structure). 1) Trace each branch line of the tension wire to the through hole of the main body, and Doctor 1 pulling the end of the main line
J81 Kake 11: It is characterized by having a tension wire attached to the main body. (2) The through holes of 7 wires 18 are drilled at an oblique angle to the tensile force direction D of the tensile wire.
) Gantt tension y, position i τj racket. (3) The tensioning device consists of a combination of a bolt and a nut with a stop part and a nut part.
) - Tensioning device 1.1 racket. (/1) Grip side 7 (with a /1-shaped window hole provided over the IS) '4.5iQ as described in claim (1), (2), or fiS (3) Guttu tension device f, j Raken 1
Claims (1), (2), and (3) in which a vortex is also formed in the axial direction on the inner circumferential surface of the ゜(ri)7 frame.
i, or th (・H,): +1j 4・Father's power bow 1
14 bows (suitable (1 racket).