JP3013706U - Money for knitting machine - Google Patents

Abstract

(57) [Summary] [Purpose] To make money into resin. [Structure] A pair of left and right disk-shaped members 1, 1
Face each other and the toe 7a of the locking claw 7 is locked to the locking piece step portion 8a of the locking hole 8 to be assembled. For the completed coins, the thick-walled flat parts 4 and 4 are used to wind the winding shaft 10.
However, the recesses 5 and 5 respectively form the space 11 for winding the bobbin.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a bobbin contained in a spool of a knitting machine.

[0002]

[Prior art]

 As shown in FIG. 5, the coin for the knitting machine (hereinafter simply referred to as “mon”) faces the press-formed ring-shaped metal plates 14, 14 and spot-welds the contact surface 3a around the through hole 2. It was formed by doing. Such a metal coin 9'has a strong thread tension and is easily distorted or deformed during repeated use to open its outer circumference. It had the drawback of being easily crushed and heavy. Therefore, the attempt was made to make the money into resin. However, as shown in FIG. 6, the conventional money made into resin is intimately attached around the through holes 2 of the disk-shaped members 1 and 1 injection-molded or stamped. The surface 3a was joined by crimping.

[0003]

[Problems to be solved by the device]

 Although it is lightweight because it is made of resin and does not deform even with a slight impact, when a force in the opening direction is applied to the money, the caulking portion 15 having low mechanical strength is broken and immediately broken. Although common to metal coins, the winding shaft 10 has a continuous mating surface gap 16 formed on the outer periphery thereof, so that a thread may be caught in the mating surface gap 16 and a trouble may occur. Cheap. In addition, if you want to remove the thread, you must rotate it in reverse to rewind it. If the thread cannot be rewound due to entanglement in the coin, cut it out with a knife or melt it with a trowel. As a result, the thread becomes unusable, or it is impossible to reuse it by applying excessive force to transform or destroy the money.

[0004]

[Means for Solving the Problems] The present invention is a coin developed for the purpose of eliminating the drawbacks that have occurred in the conventional coins while making the most of the advantages of resinization. A contact surface is provided around the through-holes on the opposing surfaces of the pair of resin discs that have been formed, and a recess is provided outside the contact surface.The toes are centered along the concentric circles near the center of the recess. Facing locking claws and locking holes having locking step portions capable of locking the toe of the locking claws on the inner wall surface on the center side are alternately formed at equal intervals, and the resin disks are connected to each other. The locking claws are locked in the locking holes facing each other and assembled. Further, the resin disc may be translucent.

[0005]

[Action]

 In addition to being made of resin, it is possible to reduce the weight and increase the strength against deformation. In addition, the locking claws are axially arranged on the outer circumference of the winding shaft, so that the thread can get into the gap between the mating surfaces. Since it can be separated by releasing the lock between the locking claw and the locking hole, it is convenient not only for removing the thread but also for loosening the thread that has been entangled in the money. Especially, the locking claw with the tip of the locking claw facing the center side is engaged with the locking piece step part of the locking piece hole having the locking step part capable of locking the toe of the locking claw on the inner wall surface on the center side. Since it is configured to stop, when the winding force of the thread increases and the expanding force acts, the toe of the locking claw acts to bite into the locking step and opposes the expanding force. . Also, by making the resin disk transparent, it is possible to easily check the amount of thread wound from the outside.

[0006]

【Example】

 An example of the implementation of money according to the present invention will be given and described with reference to the drawings. 1, 1 are disc-shaped members as a pair of left and right resin discs injection-molded with a synthetic resin, and these disc-shaped members 1, 1 have the same left and right shape. A circular through-hole 2 is provided, and around the through-hole 2, a ring-shaped thin-walled flat portion 3 is formed, and subsequently, a thick-walled flat portion 4 which is built up outside is formed. A ring-shaped recess 5 is formed on the inner surface corresponding to two-thirds of the outer peripheral side, and an edging portion 6 of approximately the same level as the thin-walled flat portion 3 is provided on the outer peripheral edge. It is formed to be thin with the side walls cut off. On the boundary between the thick flat portion 4 and the concave portion, locking claws 7, 7 ... In which hook-shaped toe points 7a are directed toward the center side are respectively provided at 6 positions at equal intervals, and A locking hole 8 having a locking step portion 8a capable of locking the toe 7a of the locking claw 7 on the inner wall surface on the center side at each intermediate position of the locking claws 7, 7 ,. .. are provided, and the protruding height of the locking claw 7 is equal to or less than the thickness of the thick flat portion 4.

The disk-shaped members 1 and 1 formed in this manner have their recesses facing each other and are shifted in phase by 30 degrees, and the toes 7a of the locking claws 7 are fitted to the corresponding locking steps 8a of the locking holes 8. Push in to lock and assemble. Assembling can be performed simply and surely by aligning the positions of the locking claw 7 and the locking hole 8 and pressing the disk-shaped members 1 and 1 against each other by the spring characteristic of the resin. In the completed coin 9, the closely attached thick flat portion serves as the winding shaft 10, and the recesses facing each other form a space 11 for winding a thread, and a slit 12 serving as a thread path is secured on the outer circumference. (See FIG. 2). Note that cutout holes 7b are provided at the base of the locking claw 7 on both sides and on the toe tip forming side so that the locking claw 7 can be easily bent (see FIG. 3).

In the money 9 thus formed, since the locking claws 7 are arranged around the winding shaft 10 so as to be orthogonal to the winding direction, the money 9 is eaten between the contact surfaces of the thick flat portion 4. When the winding force of the yarn 13 increases and the expanding force acts, the tightening force also acts on the winding shaft 10 and the locking claw 7 is pressed inward so that the claw 7a is not pulled in. The locking with the locking step 8a becomes stronger and opposes the expanding force (Fig. 3). Also, since the toe of the locking claw is locked on the inner wall surface on the center side so that the tongue can be locked, and the protruding height of the locking claw is set to be equal to or less than the thickness of the thick flat portion. , The locking piece claws do not project to the outer surface of the disk-shaped member. Further, if the thread is entangled in the coin, it can be separated by raising the locking claw to release the locking, so that the thread can be easily removed.

In the above-described embodiment, the locking claws and the locking holes are provided at six positions respectively, but the number of the locking claws and the locking holes is not limited, and as shown in FIG. The portion 4 is provided with lightening portions 4a and 4a to reduce the weight as a winding shaft of a rib structure, and although not shown, a boss may be provided to reinforce the winding shaft, which can be appropriately changed according to the purpose. And since the coin of the present invention is composed of left and right (the same shape) disk-shaped members, it is economical because it requires only one kind of member.

If the disk-shaped member is formed of a transparent or translucent material, the winding amount of the thread can be confirmed, which is convenient. Furthermore, in order to prevent the destruction of money, by devising the shape of the toes and adjusting the locking depth and the elastic force of the locking claws, it will be removed when a certain amount of stress is applied. It is also possible to do so.

[0011] Thus, not only is the resin lighter in weight and stronger in deformation, but also the thread does not get caught and the separation can be facilitated. A thermoplastic resin is preferably used as the material for forming the coin of the present invention, and it is desired to make up for the drawbacks of the synthetic resin such as fiber reinforcement and metal insertion into the locking claws.

[0012]

[Effect of device]

 According to the present invention, the thread can be easily detached and removed when the user wants to remove the thread or if the thread gets entangled in the coin without causing the thread to bite. With no deformation, even if the winding amount of the thread is large, there is no risk of the outer circumference opening or disassembling, and it can be expected to replace conventional metal coins.

[Brief description of drawings]

FIG. 1 is an exploded perspective view of a coin according to the present invention.

FIG. 2 is an explanatory view showing an assembly example in a cross section taken along line AA.

FIG. 3 is an explanatory diagram of a locking portion.

FIG. 4 is an explanatory diagram of a modification example.

FIG. 5 is an explanatory diagram of a conventional example (made of metal).

FIG. 6 is an explanatory diagram of a conventional example (made of resin).

[Explanation of symbols]

1 ... Disk-shaped member, 2 ... Through hole, 3 ... Thin flat portion,
3a ... Adhesion surface, 4 ... Thick flat portion, 4a ...
5 ... Recessed part, 6 ... Edged part, 7 ... Locking claw, 7a ...
Toe, 7b ... Cutout hole, 8 ... Locking hole, 8a ... Locking step, 9, 9 '... Money, 10 ... Winding shaft, 11
・ ・ Space, 12 ・ ・ slit, 13 ・ ・ thread, 14 ・ ・ ring metal plate, 15 ・ ・ crimped part, 16 ・ ・ gap between mating surfaces

Claims (2)

[Scope of utility model registration request] 1. A pair of ring-shaped resin discs are provided with a contact surface around the through holes of the opposing surfaces, a recess is provided outside the contact surface, and a concentric circle is formed near the center of the recess. The locking claw with the tip of the locking claw facing toward the center side and the locking hole having the locking step portion capable of locking the toe of the locking claw on the inner wall surface on the center side are alternately formed at equal intervals. , A coin for a knitting machine, which is formed by assembling these resin disks by engaging the engaging claws in the opposing engaging holes. 2. The knitting machine machine knitting coin according to claim 1, wherein the resin disk has a light-transmitting property.