CN2501536Y

CN2501536Y - Stringing device for tennis racket

Info

Publication number: CN2501536Y
Application number: CN 01259645
Authority: CN
Inventors: 朱定伟
Original assignee: Individual
Current assignee: Individual
Priority date: 2001-09-04
Filing date: 2001-09-04
Publication date: 2002-07-24
Anticipated expiration: 2011-09-04

Abstract

A racket guy device includes a shell body, which includes a panel; a driving device assembled in the shell body, which can rotate one-way and then the other and includes a motor and a decelerating mechanism, a clamp fastener is assembled on the outer side of the shell panel, the motor is connected with the clamp fastener through the decelerating mechanism; a control unit assembled in the shell body, which includes a circuit board and a two segment type switch embedded on the panel in the shell body, the two segment type switch electrically connected with the driving device, and the two segment type switch is provided with two different pressing modes, through the two pressing modes, the switch can control the dynamic transmission direction of the driving device. The utility model can regulate the output torque force at random, effectively reduce the tension inaccuracy between the racket chords, and can slowly release the tension of the racket chords to prevent the deformation phenomenon of the racket due to momentary stress change.

Description

The racket anchoring

(1) technical field

The utility model relates to a kind of racket anchoring.

(2) background technology

In ball game, utilize the motion mode of brandishing the racket batting, such as tennis or shuttlecock etc., it is the quite general and welcome sports events of a class, the batting mode of this type games is to utilize the string of a musical instrument tight on the racket, make the ball that is hit have more explosive force and lethality, therefore, in the manufacturing of racket,, just become one of key factor of racket quality for the grasp of string of a musical instrument tension force.

Traditional racket string take-up device, TaiWan, China is announced No. 324960 " the thread drawing mechanism improvement of racket threader ", it mainly is to utilize lever principle and cooperate ratchet device, the string of a musical instrument that is held on the clamper is slowly strained, though such thread drawing mechanism can reach the purpose that the tension string of a musical instrument improves string of a musical instrument tension force, still exists scarce fraud described as follows:

Though 1 utilizes lever can reach the labour-saving purpose, its power resources are still the most original manpower of utilization, and therefore the amplitude of improvement is little.

2, owing to utilize manual operation, therefore for the grasp of racket gut tension force, Drawing upon application of force person's experience and sensation fully, therefore, error of each racket gut tension force is bigger, and the racket quality is influenced easily.

3, make the overtension of racket gut as excessive backguy, because the relation of ratchet blocking is not easy the string of a musical instrument is loosened release tension force.

4, when desire unloads the string of a musical instrument on by racket, must be dependent on manpower fully, if because of misoperation makes the string of a musical instrument in abrupt release tension force, racket might produce distortion because of the STRESS VARIATION of moment.

(3) summary of the invention

The purpose of this utility model is to be to provide a kind of racket anchoring, it can adjust outputting torsion arbitrarily, dwindle tension error between racket gut effectively, and can slowly discharge racket gut tension force, avoid racket to produce the phenomenon of distortion because of the STRESS VARIATION of moment.

In order to achieve the above object, the utility model provides a kind of racket anchoring, it is characterized in that: comprising:

One housing, this housing includes a panel;

One is installed in this housing, and the drive unit of energy forward and backward, and this drive unit comprises motor and reducing gear, and a clamper is installed in this case panel outside, and this motor connects this clamper by this reducing gear;

One is installed in the control module in this housing, this control module includes the two-part switch that a circuit board and is embedded at this case panel, this two-part switch is electrically connected on this drive unit, this two-part switch is to have two kinds of different modes of pushing, but by the power transmission direction of the different mode of the pushing accessory drive of switch.

Described racket anchoring, it is characterized in that: the bottom of this housing is installed with a carriage, and this drive unit can include one be installed in this reducing gear just change the reverse motor that motor and is installed in this carriage, the main shaft of this two motor is axially relatively and by a flexible drives to connect, and this is just changeing a end that motor spindle differs from this reverses motor towards this reducing gear extension and connect this reducing gear.

Described racket anchoring is characterized in that: this flexible drives is a spring.

Described racket anchoring is characterized in that: this drive unit also can only include a reversable motor that is installed in this reducing gear, and the main shaft of this reversable motor is to extend and connect this reducing gear towards this reducing gear.

Described racket anchoring is characterized in that: the circuit board of this control module is provided with the adjuster of control motor clutch time of just changeing, and this adjuster is to be pivoted with a body of rod, and this body of rod runs through the panel of this housing and its free end and is installed with one and adjusts button.

Described racket anchoring is characterized in that: the panel of this housing is provided with the graduation apparatus of this adjustment button of cooperation.

In sum, the utility model has following several advantages really:

1, string of a musical instrument tension force is grasped accurately, and owing to the torsion that motor is exported is controlled by control module, so the tension force of racket gut is comparatively unified, and quality is controlled easily.

2, drive unit of the present utility model possesses is simultaneously just having, reversing function, therefore when desire is changed the string of a musical instrument, sees through the reversing function of drive unit, can slow down the tension force that loosens the string of a musical instrument, avoids racket to produce distortion because of the STRESS VARIATION of moment.

3, replace manpower fully, power source of the present utility model is from the motor that is installed in the housing, reduces to the utilization of manpower minimum.

4, in conjunction with two kinds of functions in one, can effectively reduce the racket producer's equipment purchase cost, improve the market competitiveness.

By above-mentioned technological means, make that the utlity model has racket gut tension force grasps advantages such as accurately and slowly discharging racket gut tension force.

(4) description of drawings

Fig. 1: be part three-dimensional exploded view of the present utility model.

Fig. 2: be side plan view of the present utility model, just change in order to display drive apparatus.

Fig. 3: be side plan view of the present utility model, reverse in order to display drive apparatus.

Fig. 4: the part exploded view that is another embodiment of the utility model.

(5) specific embodiment

As Fig. 1 and shown in Figure 2, the utility model is one can save the racket anchoring that manpower is avoided the racket gut overtension, and it mainly is to include control module (30) and that a housing (10), is installed in drive unit (20) in the housing (10), an accessory drive (20) start to be located at housing (10) clamper (40) outside and that driven by drive unit (20).

This housing (10) is the pedestal (11) that includes a Qian type and the lid (12) of a  type, after both make up mutually, just can form an enclosure space, this pedestal upstanding part is to be made as a panel (111) and a backboard (112) respectively, and to locate near backboard (112) be vertically to be installed with a carriage (113) this pedestal (11) bottom.

This drive unit (20) mainly is to include one to be fixedly arranged on the inboard reducing gear (21) of pedestal (11) panel (111), the driving shaft (not shown) of this reducing gear (21) is to run through pedestal (11) panel (111), and its free end is can be for setting firmly clamper (40), this drive unit (20) further includes the just commentaries on classics motor (22) and reverse motor (23) that is fixedly arranged on reducing gear (21) and pedestal (11) carriage (113) respectively, wherein, this is just changeing motor (22) and the main shaft (221 that reverses motor (23), 231) be axially relatively, and connect by a flexible drives (24), therefore, just changeing motor (22) or reversing its power of motor (23) all can be conveyed to clamper (40) and make it just change or reverse no matter be by reducing gear (21), in preferred embodiment of the present utility model, because of frequency of utilization and the service life of considering just changeing motor (22), be just to change motor (22) to be installed in the one side that reducing gear (21) differs from pedestal (11) panel (111), and its main shaft (221) is to extend in the reducing gear (21) and drive reducing gear (21) towards an end of reducing gear (21), its other end is then axially relative with the main shaft (231) that reverses motor (23), wherein just connecting, reverse motor (22,23) flexible drives (24) is a spring, because of two main shafts (221,231) use flexible drives (24) to connect, even so two main shafts (221,231) produce eccentric error in group immediately, but the utility model is normal operation still, has reduced manufacture difficulty significantly.

This control module (30) is to be installed on the inwall of pedestal (11) panel (111), and include a circuit board (31), be to be provided with an adjuster (not shown) on this circuit board (31), this adjuster has one and is pivoted and runs through the body of rod of pedestal (11) panel (111), the free end of this body of rod is to adjust button (32) for setting firmly one, by the every electronic component on this adjustment button (32) and the circuit board (31), can control the clutch time of just changeing motor (22), (this adjuster is common prior art to reach the purpose of controlling string of a musical instrument tension force, so do not give detailed description), and pedestal (11) panel (111) outside is provided with the set graduation apparatus (321) of a cooperation adjustment button (32) simultaneously, allow the operator can grasp the tension force of the string of a musical instrument more accurately, this control module (30) further includes a switch (33) that is embedded at pedestal (11) panel (111), control for convenience just, reverse motor (22,23), this switch (33) is a two-part switch (this two-part switch is common prior art), and just controlling respectively, reverse motor (22,23), when pressing first section of switch, switch (33) can not reset immediately, make and just changeing motor (22) beginning continuous running, when the string of a musical instrument of the last clamping of clamper (40) arrives the tension force that sets, circuit board (31) can send signal makes switch (33) reset, just changeing motor (22) and promptly shutting down this moment, because the velocity ratio of the utility model reducing gear (21) is very big, therefore under normal situation, clamper (40) can not pullled because of the tension force of the string of a musical instrument and reverse.

Please cooperate again and consult as shown in Figure 3, second section of switch (33) mainly is to reverse the purpose that motor (23) reaches release string of a musical instrument tension force in order to control, when desire is changed racket gut, if the tension force abrupt release of the string of a musical instrument, racket might produce distortion because of the STRESS VARIATION of moment, therefore, second section of switch (33) is to adopt the mode of stepping to design, so when the operator stops push switch (33), this switch (33) just rebounds immediately, also stop operating simultaneously and reverse motor (23), the speed of avoiding loosening the string of a musical instrument is too fast, causes the distortion of racket.

See also as shown in Figure 4, it is another preferred embodiment of the present utility model, wherein, for ask the shortening group immediately between, it mainly is with the just commentaries on classics motor (22) in the previous embodiment, is replaced with a reversable motor (50), and it is upright with the group that reverses motor (23) so can to save carriage (113), and its mode of operation and other each elements are then identical with aforesaid first embodiment.

In sum, the utility model can improve the scarce fraud of commonly using the racket threading drawing machine really, beyond doubt a fine piece of writing that meets progressive, dark tool practicality.

Claims

1, a kind of racket anchoring is characterized in that: comprising:

One housing, this housing includes a panel;

One is installed in the control module in this housing, and this control module includes the two-part switch that a circuit board and is embedded at this case panel, and this two-part switch is electrically connected on this drive unit.

2, racket anchoring as claimed in claim 1, it is characterized in that: the bottom of this housing is installed with a carriage, and this drive unit include one be installed in this reducing gear just change the reverse motor that motor and is installed in this carriage, the main shaft of this two motor is axially relatively and by a flexible drives to connect, and this is just changeing a end that motor spindle differs from this reverses motor towards this reducing gear extension and connect this reducing gear.

3, racket anchoring as claimed in claim 2 is characterized in that: this flexible drives is a spring.

4, racket anchoring as claimed in claim 1 is characterized in that: this drive unit includes a reversable motor that is installed in this reducing gear, and the main shaft of this reversable motor is to extend and connect this reducing gear towards this reducing gear.

5, as claim 2 or 4 described racket anchorings, it is characterized in that: the circuit board of this control module is provided with the adjuster of control motor clutch time of just changeing, this adjuster is to be pivoted with a body of rod, and panel and its free end that this body of rod runs through this housing are installed with an adjustment button.

6, racket anchoring as claimed in claim 5 is characterized in that: the panel of this housing is provided with the graduation apparatus of this adjustment button of cooperation.