TWM591878U - Alignment structure for racket frame holder of racket threading machine - Google Patents

Abstract

A positioning structure of a rack holder of a racket stringing machine includes a rack, a clamping block, an operating piece and two springs, wherein the rack is embedded in a plate, and the upright of the rack holder forms a The chamber, the card block is lively arranged in the chamber, the bottom edge of the card block forms a tooth row and the rack is relatively engaged, the operating member is pivotally arranged on the upright, the operating member is mainly composed of an operating part and a The pushing parts are connected obliquely. The pushing parts extend inside the card block, and the pushing part pushes the card block upward to release the meshing relationship between the card block and the rack.

By engaging the card block with the rack, the frame holder for holding the racket can be effectively bidirectionally positioned, and the positioning reliability of the frame holder is improved.

Description

Positioning structure of rack holder of racket stringing machine

This creation is related to the rack frame holder used by the racket stringing machine to hold the racket. More specifically, it refers to a positioning structure of the rack frame holder of the racket stringing machine.

Tennis rackets, badminton rackets, and other ball-shaped rackets have a racket string inside the racket that is used to weave a net-shaped hitting surface. The stretch of the hitting surface depends on the racket thread being worn When the striking surface is constituted, the tensile stress value formed by the stretching action of the racket string is generally used to perform racket stringing operation by using a racket stringing machine in order to make the racket string threading easy to perform and the tensile stress value to be accurate.

The racket stringing machine is provided with a plurality of rack frame holders on the top edge of a board, and each rack frame holder is used to hold a ring-shaped racket frame to keep the racket in a stable position during the stringing process to facilitate racket stringing. Weaving and stretching operations.

Due to the difference in the size of the ring frame of the tennis racket and badminton racket, after using the stringing machine to perform the stringing operation on the badminton racket, if you want to string the tennis racket, you need to move the rack holders away from each other to make the tennis racket The frame can be placed between the frame holders. Conversely, after using the stringing machine to perform the stringing operation on the tennis racket, if you want to thread the badminton racket, you need to move the frame holders relatively close, so that Each of the rack holders effectively holds the racket of the badminton racket. According to this, the racket stringing machine must be able to change the relative distance between the rack holders.

The M426421 patent discloses a positioning structure of a rack holder of a racket stringing machine, which includes a rack, a resisting piece and an operating piece, wherein the rack is embedded on the table of the stringing machine, and the top edge of the rack is formed The row is provided with a plurality of unidirectional ratchet teeth, the frame holder is erected on the top edge of the platen, the resisting member is lively arranged in the frame holder, the bottom end of the resisting member forms a diagonal direction with the ratchet teeth of the rack One-way resistance, according to this, when the frame holder is moved toward the outer periphery of the platen, even if the resistance member is not operated, the resistance state of the resistance member and the ratchet is released, the resistance member can still jump in sequence The ratchets embedded in one direction cannot limit the movement of the frame holder toward the outer periphery of the platen. During the threading process, if you accidentally touch the frame holder toward the periphery of the platen, it may be As a result, the frame holder moves toward the periphery of the platen, so that the effective holding of the frame holder by the frame is released, which affects the threading operation.

The main purpose of this creation is to provide a positioning structure of the rack holder of the racket stringing machine. By the engagement of the card block and the rack, the rack holder for holding the racket can be effectively bidirectionally positioned to improve the rack holding Positioning reliability.

In order to meet the aforementioned purpose, this creation is a positioning structure of a rack holder of a racket stringing machine, which includes a rack, a clamping block, an operating member and two springs, wherein a post of the rack holder is disposed on the rack The top edge of one platen of the racket stringing machine, the rack is embedded on the platen, and the top edge of the rack is provided with a plurality of first convex teeth;

A cavity is formed inside the column, the bottom edge of the cavity opens to the rack, and the cavity extends to one side of the column to form an opening;

The card block is arranged inside the chamber, and the bottom edge of the card block forms a row of teeth formed by a plurality of second convex teeth in a row, the row of teeth is parallel to the rack, according to the card Block by this The tooth row is in mesh with the rack, the clamping block is recessed on a side adjacent to the opening, and the top edge of the groove forms an abutment wall;

The operation part is pivotally arranged on the upright post, the operation part is mainly composed of an operation part and a pushing part, the operation part is provided with a pivot, and both ends of the pivot are connected with the upright, according to the operation part According to the pivot as the center of rotation, one end of the pushing portion obliquely contacts the operating portion, and the other end of the pushing portion extends inside the groove and is adjacent to the abutment wall. The pushing part pushes the card block upwards to release the meshing relationship between the card block and the rack;

The spring is arranged on the top of the clamping block, and the two ends of the spring respectively bear against the clamping block and the upright, and the spring forces the clamping block to mesh with the rack.

By engaging the card block with the rack, the frame holder for holding the racket can be effectively bidirectionally positioned, and the positioning reliability of the frame holder is improved.

10‧‧‧Rack

12‧‧‧The first convex tooth

20‧‧‧Card block

21‧‧‧Second convex tooth

22‧‧‧Dentition

23‧‧‧groove

24‧‧‧ against the wall

25‧‧‧Long slot

26‧‧‧Limit lever

27‧‧‧First inlay

30‧‧‧operating parts

32‧‧‧Operation Department

34‧‧‧ Pushing Department

342‧‧‧arm

344‧‧‧wheel

346‧‧‧Shaft

36‧‧‧Pivot

40‧‧‧Spring

50‧‧‧pillar

52‧‧‧Room

54‧‧‧ opening

56‧‧‧Second embedded hole

60‧‧‧plate

The first figure is a perspective view of a preferred embodiment of the present creation.

The second figure is a three-dimensional exploded view of the preferred embodiment of the present creation.

The third figure is a partial cross-sectional view of the preferred embodiment of the present invention.

The fourth figure is a lateral partial cross-sectional view of the active state of the preferred embodiment of the present creation.

As shown in the first to fourth figures, a preferred embodiment of the positioning structure of the frame holder of the present racket stringing machine includes a rack 10, a clamping block 20, an operating member 30 and two springs 40 , Wherein a post 50 of the rack holder is provided on the top edge of a plate 60 of the racket stringing machine, the rack 10 is embedded in the plate 60, and a number of A convex tooth 12, the upright 50 A cavity 52 is formed in the interior of the cavity, the cavity 52 extends downward, and a bottom edge of the cavity 52 opens to the rack 10, and the cavity 52 extends on one side of the post 50 to form an opening 54.

The clamping block 20 is arranged inside the chamber 52. The bottom edge of the clamping block 20 forms a row of teeth 22 composed of a plurality of second convex teeth 21, the row of teeth 22 and the rack 10 Parallel, according to which the clamping block 20 is relatively engaged with the rack 10 through the tooth row 22, the clamping block 20 recesses a groove 23 on the side adjacent to the opening 54, the top edge of the groove 23 An abutment wall 24 is formed. The operating member 30 is pivotally mounted on the post 50. The operating member 30 is mainly composed of an operating portion 32 and a pushing portion 34. The operating portion 30 is provided with a pivot 36. The pivot Both ends of 36 are connected to the upright 50, the operating member 30 rotates around the pivot 36, one end of the pushing portion 34 is obliquely connected to the operating portion 32, and one of the operating portions 32 It is preferable to partially extend through the opening 54 to the outside of the chamber 52. The other end of the pushing portion 34 extends inside the groove 23 and is adjacent to the abutment wall 24, according to The pushing portion 34 pushes the card block 20 upward to release the meshing relationship between the card block 20 and the rack 10; the spring 40 is disposed at the top of the card block 20, and the spring 40 is held against the card at both ends The block 20 and the upright 50 cause the spring 40 to force the card block 20 to mesh with the rack 10.

As described in the above preferred embodiment, when the post 50 is positioned on the platen 60, the spring 40 exerts a force on the card block 20, the card block 20 moves down, and the card block 20 and The rack 10 meshes. At this time, since each second convex tooth 21 and the corresponding first convex tooth 12 respectively form a relative stop in the long axis direction of the rack 10, it acts on the lateral side of the upright 50 The external force cannot move the post 50 to the top edge of the platen 60.

When the post 50 is to be moved for the purpose of adjusting the frame holder, the operation portion 32 is pressed and operated in the direction of the chamber 52 to rotate the operation member 30 in the counterclockwise direction, and the pushing portion 34 Abutting the wall 24 to form an upward pushing action, and the pushing block 20 can be pushed upward to move upward (As shown in the fourth figure), the clamping block 20 is separated from the rack 10, and the meshing relationship between the clamping block 20 and the rack 10 is released, so that the upright 50 can be moved to the top of the table 60 Edge displacement.

According to the foregoing, by engaging the card block 20 with the rack 10, the invention can effectively position the rack holder for holding the racket bidirectionally, and improve the positioning reliability of the rack holder.

Furthermore, the pushing portion 34 includes two arm levers 342 and a roller 344, wherein each arm lever 342 is laterally opposed to each other, and one end of each arm lever 342 is diagonally connected to the operating portion 32, each arm One end of the rod 342 extends toward the top edge of the groove 23, the roller 344 is disposed between each arm 342, the roller 344 axially penetrates a shaft 346, and the shaft 346 and each arm 342 At the same time, the roller 344 pushes the card block 20 upwards.

When the pushing portion 34 pushes the clamping block 20 upward, the roller 344 comes into rolling contact with the abutment wall 24, thereby reducing the relative friction between the roller 344 and the abutment wall 24, and when the post 50 to the desired positioning, when the force control of the operation part 32 is released, the elastic force of the spring 40 and the gravity of the card block 20 cause the card block 20 to move downward, and the pushing part 34 borrows The contact of the roller 344 with the abutment wall 24 can avoid the phenomenon that the abutment wall 24 and the pushing portion 34 form a mutual catch, which causes the card block 20 to move downward and restore the card block 20 The reliability of the meshing relationship with the rack 10 is improved.

The clamping block 20 penetrates a long slot 25 laterally. The two ends of the long slot 25 in the elongated direction point to the top of the clamping block 20 and the rack 10 respectively. The long slot 25 pivotally inserts a limit lever 26. The two ends of the limit lever 26 are respectively connected to the upright 50, so that the limit lever 26 relatively restricts the displacement stroke of the card block 20 to move up and down.

The top of the card block 20 is recessed downward with two first insertion holes 27, and the upright 50 is in the receptacle The top of the chamber 52 is recessed upward with two second insertion holes 56, and the two ends of each spring 40 are respectively pivoted into the first insertion hole 27 and the second insertion hole 56, and each spring 40 is positioned accordingly.

10‧‧‧Rack

12‧‧‧The first convex tooth

20‧‧‧Card block

21‧‧‧Second convex tooth

23‧‧‧groove

24‧‧‧ against the wall

25‧‧‧Long slot

26‧‧‧Limit lever

27‧‧‧First inlay

30‧‧‧operating parts

32‧‧‧Operation Department

34‧‧‧ Pushing Department

342‧‧‧arm

344‧‧‧wheel

346‧‧‧Shaft

36‧‧‧Pivot

40‧‧‧Spring

50‧‧‧pillar

52‧‧‧Room

54‧‧‧ opening

60‧‧‧plate

Claims (5)

A positioning structure of a rack holder of a racket stringing machine includes a rack, a clamping block, an operating member and two springs, wherein a post of the rack holder is provided on a plate of the racket stringing machine A top edge, the rack is embedded on the table, and the top edge of the rack is provided with a plurality of first convex teeth; A cavity is formed inside the column, the bottom edge of the cavity opens to the rack, and the cavity extends to one side of the column to form an opening; The card block is arranged inside the chamber, and the bottom edge of the card block forms a row of teeth formed by a plurality of second convex teeth in a row, the row of teeth is parallel to the rack, according to the card The block is relatively engaged with the rack by the tooth row, the clamping block is recessed on a side adjacent to the opening, and the top edge of the groove forms an abutment wall; The operation part is pivotally arranged on the upright post, the operation part is mainly composed of an operation part and a pushing part, the operation part is provided with a pivot, and both ends of the pivot are connected with the upright, according to the operation part According to the pivot as the center of rotation, one end of the pushing portion obliquely contacts the operating portion, and the other end of the pushing portion extends inside the groove and is adjacent to the abutment wall. The pushing part pushes the card block upwards to release the meshing relationship between the card block and the rack; The spring is arranged on the top of the clamping block, and the two ends of the spring respectively bear against the clamping block and the upright, and the spring forces the clamping block to mesh with the rack. The positioning structure of the frame holder of the racket stringing machine as described in item 1 of the patent application scope, wherein the pushing portion includes two arms and a roller, each of the arms is laterally opposed to each other, and each of the arms One end is obliquely connected to the operating portion, one end of each arm extends toward the top edge of the groove, the roller is disposed between each arm, the roller axially penetrates a shaft, and the shaft Connected with each of the arms, the roller pushes the card block upwards. The positioning structure of the frame holder of the racket stringing machine as described in item 1 or item 2 of the patent application scope, wherein the card block penetrates a long slot laterally, and the long slot is respectively provided at both ends of the elongated extending direction Pointing to the top of the card block and the rack, a limit lever is pivotally inserted into the long slot, and both ends of the limit bar are respectively connected to the upright post, according to which the limit lever relatively restricts the up and down movement of the card block Displacement travel. The positioning structure of the rack holder of the racket stringing machine as described in item 1 or 2 of the patent application scope, wherein a part of the operation part protrudes outside the chamber through the opening. The positioning structure of the rack retainer of the racket stringing machine as described in item 1 or 2 of the patent application scope, wherein the top of the card block is recessed downward by two first insertion holes, and the upright is at the top of the chamber Two second insertion holes are recessed upward, and the two ends of each spring are respectively pivoted into the first insertion hole and the second insertion hole, and each spring is positioned accordingly.

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