JP4678539B2 - Caster cap and method for forming the same - Google Patents

Description

  The present invention relates to a caster cap capable of braking a caster attached to a leg portion of a chair or a desk, and a method for forming the caster cap.

Conventionally, in order to fix casters attached to leg portions of furniture such as desks and chairs, it is known to arrange caster receivers on the lower surface of the casters. For example, Patent Document 1 discloses a caster receiver disposed on the lower surface of a chair caster. The caster receptacle is provided with a groove for fixing the caster, and the chair can be fixed at a predetermined position by fitting the caster into the groove.
Japanese Utility Model Publication No. 06-174

  According to the caster receiver disclosed in Patent Document 1, since the free rolling of the caster is restrained, it is possible to prevent the chair from moving unintentionally or damaging the tatami mat or carpet laid on the floor by the caster. . However, if the seated person pulls the chair strongly backwards when standing up, the caster rolls, and the live caster may get over the peripheral wall of the caster receiver and come off the caster receiver. When the caster is removed from the caster support in this way, the chair can move in all directions, so that the position of the chair is not fixed in the seated state, and the floor surface is brought into contact with the caster by directly contacting the floor surface. When flooring, there is a problem that extraneous sounds are generated due to friction, and when the floor is a tatami mat or a carpet, they may be damaged.

  The present invention not only can solve the above-mentioned problems, but also absorbs and relaxes the load acting on the caster, so that the caster is not damaged even when subjected to a relatively strong impact from the outside. The object of the present invention is to provide a caster cap which has a function and has high utility value as an interior decoration.

  The present invention includes a caster cap and a method for forming the caster cap.

The present invention has a longitudinal direction, a radial direction, and a circumferential direction, the radial cross section is annular, and is fitted to the outside of a caster formed by a pair of wheels facing and separating in the axial direction via a shaft. Extending in the radial direction between the peripheral wall to be joined, the upper opening located at the upper end in the longitudinal direction, and the opposing portion of the inner side surface of the peripheral wall, and between the opposing inner side surface of the pair of wheels and the shaft A caster cap including a stopper that fits into a space formed in the space, and is formed of a flexible elastic member, wherein the peripheral wall and the stopper are deformable at least in the radial direction, and the stopper is in the space. It is inserted so that it may press-contact with a part of surrounding surface of the said axis | shaft inside.

  The present invention includes the following preferred embodiments.

The cap further includes a lower opening located at the lower end in the vertical direction and an edge bottom projecting inward in the radial direction from the lower opening.

  The peripheral wall and the stopper are formed by twisting strands made of a plurality of heat-welding synthetic fiber yarns and knitting a single rope having a predetermined length and diameter.

A method for forming a caster cap formed by knitting a single rope, wherein the forming method includes a main body having a predetermined length and a diameter, a first end located at one end of the main body, and the main body. A second end portion located at the other end of the first end portion, and the first end portion is formed such that a loop is formed in the first end portion so that the main body can be inserted from the second end portion. A first step of forming an eye loop by bending the vicinity thereof including a ring shape and fixing the first end portion to the main body in the vicinity thereof;
A second step of forming an appropriately sized base loop that should be positioned on the annular bottom by passing the main body from the second end to the eye loop;
The main body intersects a portion forming a part of the base loop to form a first loop with the main body and the base loop, and the first end is inserted through the first loop. Wrap in a state where the loop is tightened around the base loop,
Next, in a portion adjacent to the first loop on the clock or counterclockwise side along the base loop, the main body intersects with a portion forming a part of the base loop, and the main body and the base loop Forming two loops and passing the second end through the second loop and winding the second loop around the base loop;
Thereafter, the third loop to the n-th loop following the second loop are sequentially formed so as to go around the base loop by the same operation, and thereby, from the first loop to the n-th loop in the circumferential direction. Forming a first loop row in parallel, and forming the lower opening by the inner periphery of the first loop row,
The first loop adjacent to the n-th loop of the first loop row is inserted through the second end portion to form a first loop of the row to be the second loop row by the main body, and the first loop Wrap in a state where the second end is passed through the loop and tightened,
Next, passing the second end portion through the second loop of the first loop row adjacent to the first loop of the first loop row on the one direction side along the first loop row, Forming the second loop of the row to be the second loop row in the main body, and winding the second loop through the second end and tightening the second loop;
Thereafter, the third loop to the n loop are sequentially formed following the second loop so as to go around the first loop row by the same operation, and thereby, from the first loop to the n loop in the circulation direction. Form a second loop train in parallel,
Further, an m-th loop row is formed from a third loop row following the second loop row by an operation similar to the operation of forming the first and second loop rows, and the knitting operator uses the hand to A fourth step of appropriately operating the knitting direction so that each loop row after the first loop row extends substantially upward in the longitudinal direction to form the annular side wall;
The first end formed between any adjacent loops in the (m-1) th loop row is located below the second end in a state of being wound around the mth loop row. Passing from the outside of the stitches to the inside thereof, entering the inside of the article, and moving toward the second stitch of the m-1st loop row at the position facing the first stitch on the inner peripheral wall of the article, A straight first transverse portion extending in the radial direction is formed between the inner peripheral walls of the side wall by being wound around the main body forming the m-1st loop row through a second stitch. A fifth step;
The second end is inserted into the second stitch from the outside to the inside, and again enters the inside of the article, and continuously wound clockwise or counterclockwise with respect to the first crossing portion. A spiral loop group extending in the radial direction of the article, wound in a state of being tightened to a main body forming the m-1 loop row through the first stitch while being directed to the first stitch Form the
Next, the second end is inserted into the first stitch from the outside to the inside of the article, and is directed to the second stitch while passing through each loop constituting the loop group. Forming a straight second transverse portion extending in parallel with the first transverse portion in the loop group, and passing the second end portion from the inside to the outside of the second stitch, A sixth step of winding in a state of tightening to the main body forming the m-1 loop row so as to tighten the first and second transverse portions located in the loop group;
After the sixth step, the seventh step includes inserting and fixing the second end portion to an arbitrary stitch of the first to m-th loop rows.

  In this invention, when the caster cap is attached to a pair of wheels that are casters, the outer surface of the wheel comes into contact with the inner surface of the peripheral wall of the cap, and its rolling can be restrained. Even if a relatively large load is applied to the wheel by rolling the inner surface of the wheel into contact with the stopper and the wheel being pinched by the inner surface of the peripheral wall and the stopper, the wheel rolls. The cap is securely attached to the caster.

  When the caster cap is formed using a single rope excellent in flexibility, compression recovery elasticity, friction strength, and tensile strength, the load applied to the caster can be absorbed and relaxed, and a caster cap resistant to external impact can be obtained. be able to. Moreover, since it is formed only by knitting work using a single rope, it can be produced at a relatively low cost.

  Embodiments of a caster cap according to the present invention will be described below with reference to the accompanying drawings.

  FIG. 1 is a perspective view of the caster 10, and FIG. 2 is a cross-sectional view taken along the line II-II.

  The cap 10 has upper and lower openings 11 and 12 positioned at the upper and lower ends in the longitudinal direction, the radial direction, the circumferential direction, and the longitudinal direction, respectively, and the circumferential wall 13 having an annular cross-sectional shape in the radial direction, and the inner surface of the side wall It is formed from a stopper 14 that extends linearly in the radial direction between the opposing portions of 13a. In this embodiment, the cap 10 is a cylindrical body as a whole from the shape of the peripheral wall 13, but may be a prismatic body or other shapes as long as it is a cylindrical body.

  The stopper 14 has a substantially circular cross section, and is located substantially in the center in the vertical direction of the peripheral wall 13 inside the cap 10. As long as the stopper 14 has the functions described below, the cross-sectional shape and arrangement thereof are not particularly limited, and may be rectangular or other shapes, and may be located in the vicinity of the upper opening edge 11a. Further, at the lower end of the caster 10, the edge bottom 12a of the peripheral wall 13 projects inward in the radial direction, and the lower end opening 12 is formed at the inner peripheral edge thereof.

  FIG. 3 is a perspective view of the caster cap 10 attached to the caster 16 of the chair.

  The cap 10 is attached to the outside of the pair of wheels 16A and 16B that are spaced apart from each other via the connecting shaft 17. Specifically, the cap 10 is attached to the caster 16 from the upper opening 11 side so that the inner side surface 13a of the peripheral wall 13 is fitted to the outer side surface of the wheels 16A and 16B, and the stopper 14 is connected to the wheels 16A and 16B. It fits in the space 18 between the shafts 17. In this mounted state, the inner surface 13a of the peripheral wall 13 is in pressure contact with the outer surfaces of the wheels 16A and 16B, and the stopper 14 is in pressure contact with the opposing inner surface of the wheels 16A and 16B and a part of the peripheral surface of the connecting shaft 17. In addition, it is preferable that the inner diameter of the peripheral wall 13 and the outer diameter of the stopper 14 are set in order to reliably stop rolling of the wheels 16A and 16B. Furthermore, it is preferable that the peripheral wall 13 and the stopper 14 can be deformed at least in the radial direction, in particular elastic deformation or inelastic deformation, so that the cap 10 is deformed according to the outer shape of the caster 16 and pressed against the cap. Here, inelastic deformation means that the cap 10 can be deformed by applying an expanding force in the radial direction when the cap 10 is formed of a yarn or a woven or knitted fabric made of yarn. When the opening force is released, the woven or knitted structure is once formed, so that it can be restored to the original woven or knitted structure even slightly.

  Further, in a state where the cap 10 is mounted on the caster 16, it is preferable that the wheels 16A and 16B are in contact with the edge bottom 12a. In this case, for example, even if the wheels 16A and 16B are pressed against the floor surface via the edge bottom 12a due to the load of the chair, the wheels 16A and 16B roll due to the frictional resistance between the edge bottom 12a and the wheels 16A and 16B. It is because is restrained. Moreover, in such a restrained state, even if the mounting state of the cap 10 is stable and an impact is applied from the outside of the cap 10, there is no possibility that the cap 10 will be inadvertently detached from the wheels 16A and 16B.

  In the present invention, the lower opening 12 and the edge bottom 12a of the cap 10 are not indispensable requirements, but it is preferable that they exist in order to ensure the restraint of the wheels 16A and 16B. If the wheels 16A and 16B are in direct contact with the floor, even if the wheels 16A and 16B are pressed against each other by the peripheral wall 13 and the stopper 14 as described above, a relatively large rolling force This is because if the wheel acts on the wheels 16A and 16B, the wheels 16A and 16B may roll. Although not shown, the entire corresponding portion of the lower opening 12 may be formed with a bottom so that the lower opening 12 does not exist.

  The cap 10 is formed from a relatively soft elastic member, for example, a molded product made of an elastic material such as natural rubber or synthetic rubber, a soft plastic material such as polyolefin or polyvinyl chloride, or a knitted product made of the plastic material. be able to. This is because, when the cap 10 is formed from a relatively hard member, the cap 10 may cause damage to the floor surface when the chair 10 is moved by sliding the cap 10 on the floor surface. However, even when the cap 10 is formed of a hard member, the above-described fear can be eliminated by attaching a soft elastic member or the like to the edge bottom 12a in contact with the floor surface.

  FIG. 4 is a perspective view showing another embodiment of the cap 10. FIG. 5 is a view showing a state in which the cap 110 is attached to the caster 16.

  The cap 110 is a knitted product formed by knitting a single rope 100 made by twisting strands made of heat-welding synthetic fiber yarn. Unlike the cap 10, the cap 110 is formed from a knitted structure of a rope. The main structure is the same as that of the cap 10 except that the upper and lower openings 111 and 112 having the vertical direction, the radial direction, and the circumferential direction, respectively, are positioned at the upper and lower ends of the vertical direction. The cross-sectional shape includes an annular peripheral wall 113 and a cylindrical stopper 114 extending radially on the inner side surface 113a of the peripheral wall 113.

  The cap 110 is a knitted tissue body formed by knitting a single rope 100. Like the cap 10, the cap 110 is fitted so that the inner side surface 113a of the peripheral wall 113 is fitted to the outer side surfaces of the wheels 16A and 16B. Next, the wheel is mounted on the caster 16 from the upper opening 111 side, and the stopper 114 is fitted into the space 18 between the wheels 16A and 16B of the caster 16 and the connecting shaft 17 connecting the wheels 16A and 16B. 16A and 16B are clamped by the inner surface 113a of the peripheral wall 33 of the cap 110 and the stopper 114, and the rolling of the wheels 16A and 16B can be stopped.

  6-7 is a perspective view which shows the formation process (1st-7th process) of articles | goods.

(First step)
As illustrated in FIG. 6A, the rope 100 includes a main body 130 having a predetermined length and a diameter, a first end portion 131, and a second end portion 132. The first end 131 is formed by bending its vicinity including the first end 131 in an annular shape so that a loop is formed so that the main body 130 can be inserted from the second end 132 at the first end 131. To the main body 130 in the vicinity thereof to form an eye loop 133. The eye loop 133 may be formed by tangling strands constituting the rope 100 or may be formed by heat-welding the first end 131 to the main body 130 under pressure.

  At this time, it is preferable that the distal end portion 132a of the second end portion 132 is hardened and tapered as compared with other portions in order to facilitate the rope insertion operation described later. Specifically, the distal end portion 132a is thermally welded under pressure and solidified, and the strands forming the rope 100 are integrated to be hardened and tapered as compared with other portions. This operation can be performed before or after the first step.

(Second step)
As shown in FIG. 6B, the main loop 130 is inserted into the eye loop 133 from the second end 132 to form a base loop 134 of an appropriate size that should be positioned at the annular bottom.

  As shown in FIG. 6B, the following steps are described in a state where it is assumed that the knitting operator of the cap 110 performs the knitting operation while holding the base loop 134 almost horizontally with one hand. .

(Third step)
As shown in FIG. 6C, the main loop 130 and the base loop 134 form a first loop 135 by crossing the second end 132 of the base loop 134 to the outside of the base loop 134, and the second end 132. The portion 132 is inserted from the lower side of the base loop 134 into the first loop 135 and pulled to the outside of the base loop 134, and the first loop 135 is wound around the base loop 134.

  Next, as shown in FIG. 6 (d), the second end 132 intersects the main body 130 from the outside of the base loop 134 at a portion adjacent to the first loop 135 on the clockwise side along the base loop 134. A second loop 136 is formed with the base loop 134, and the second end 132 is inserted into the second loop 136 from the lower side of the base loop 134, pulled outside the base loop 134, and the second loop 136 is inserted into the base loop 134. It winds in the state tightened to 134.

  Thereafter, as shown in FIG. 6 (e), the third loop 137 to the nth loop following the second loop 136 are sequentially formed so as to go around the base loop 134 by the same knitting operation as described above. A first loop row R1 in which the first loop 135 to the n-th loop are arranged in parallel is formed, and a lower opening 112 is formed by the inner periphery of the first loop row R1.

(4th process)
As shown in FIG. 6 (f), the second end 132 is crossed from the outside of the first loop 135 adjacent to the n loop of the first loop row R1, and the row 130 of the main body 130 is to become the second loop row R2. A state in which the first loop 140 is formed, and the first loop 140 is passed through the second end 132 from the lower side and pulled to the outside of the first loop row R1, and the first loop 140 is fastened to the first loop 135. Wrap with.

  Next, as shown in FIG. 6G, the second loop 136 of the first loop row R1 adjacent to the first loop 135 of the first loop row R1 on the clockwise side along the first loop row R1 The two ends 132 are crossed from the outside, and the main body 130 forms the second loop 141 of the row to be the second loop row R2, and the second end 132 is inserted into the second loop 136 from the lower side. The second loop 141 is wound around the second loop 136 by pulling it through the first loop row R1.

  As shown in FIG. 6 (h), after forming the second loop 141 of the second loop row R2, like the first loop row R1, the first loop row R1 is made to make a round by the same knitting operation as described above. Further, the third loop 142 to the m-th loop following the second loop 141 are sequentially formed, whereby the second loop row R2 in which the first loop 141 to the m-th loop are arranged in the circumferential direction can be formed.

  Thereafter, as shown in FIG. 6 (i), by the same operation as described above, the first loop row R1 is successively formed up to the third loop R3 following the second loop R2 so as to go around the first loop row R1. To the third loop row R3 extends substantially upward in the vertical direction, and a peripheral wall 113 having an annular cross section is formed. In the present embodiment, the first loop row R1 to the third loop row R3 are formed. However, depending on the size of the wheels 16A and 16B of the casters 16, a necessary loop row may be formed as appropriate. Good. In addition, the knitting operator can perform the knitting work with the hand as necessary, and can arrange the direction of each loop row so that each loop row is connected in the vertical direction.

(5th process)
After finishing the fourth step, as shown in FIGS. 7A and 7B, the second end 132 in a state of being wound around the main body 130 around the third loop row R3 is placed below the second end 132. The first stitch S1 formed between any adjacent loops in the second loop row R2 is inserted from the outer side to the inner side of the first stitch S1 to enter the inside of the cap 110. The cap 110 is wound in a state of being tightened around the main body 130 that forms the second loop row R2 by passing the second loop S2 toward the second stitch S2 of the second loop row R2 at a position facing the stitch S1. A straight first cross section 150 that crosses the inside of the first cross section 150 is formed.

(6th process)
Next, as shown in FIGS. 7C and 7D, the second end portion 132 is inserted into the second stitch S2 from the outside to the inside, and again enters the inside of the knitting cap 110, so that the first transverse portion The second loop row R2 is formed by passing the first stitch S1 toward the first stitch S1 while being continuously wound counterclockwise as viewed from the first stitch S1 side with respect to the first stitch S1. It winds in the state fastened by the main body 130, and the helical loop group 151 is formed.

  Further, as shown in FIGS. 7 (e) and (f), the second end 132 is inserted from the outside of the first stitch S1 to the inside thereof, and again enters the inside of the cap 110, and the spiral winding is performed. A straight second cross section 152 extending in parallel with the first cross section 150 is formed in the loop group 151 toward the second stitch S2 while passing through each loop constituting the loop group 151. Thereafter, the second end 132 is inserted from the inside of the second stitch S2 to the outside, and the second loop row so that the loop group 151 clamps the first transverse portion 150 and the second transverse portion 152 located therein. The main body 130 forming the R2 is wound in a tightened state. As described above, the first transverse portion 150 and the second transverse portion 152 extend in the radial direction of the cap 110 in the loop group 151, and the first and second transverse portions 150 and 152 are fastened to the loop group 151. A cylindrical stopper 114 having a given diameter and strength is formed.

(Seventh step)
After the sixth step, as shown in FIGS. 8 (a) and (b), the second end 132 is passed through an arbitrary loop of the first loop row R1, and then an arbitrary loop of the second loop R2, When passing through another arbitrary loop of the first loop R1 in order, the cap 110 circulates in the circumferential direction, and the main body 130 including the second end 132 no longer has a length enough to circulate. The first stitch and the second loop row R1, R2 located in the vicinity of the two end portions 132 are fixed to the stitches. As described above, when the main body 130 including the second end portion 132 is alternately inserted into each loop of the first loop row R1 and the second loop row R2, a force for pulling it out acts on the main body 130. However, the main body 130 does not easily come off from each loop, and the formed knitted structure is not likely to be unraveled.

  Since the cap 110 is formed from the rope 100 that is excellent in moderate flexibility, compression recovery elasticity, friction strength, and tensile strength, the cap 110 can absorb and relax the load applied to the caster, and can slide on the floor surface. It is not easily damaged and has excellent durability. Further, when the cap 110 is attached to the caster 16, even if a gap is generated between the stopper 114 and the connecting shaft 17, by pressing the stopper 114 toward the connecting shaft 17, a part of the stopper 114 is moved. The stopper 114 can be brought into contact with the connecting shaft 17 by being inelastically deformed, and the cap 110 can be stably attached to the caster 16.

  Furthermore, since the cap 110 can be made by knitting the single rope 100 by the forming method, it can be produced at a relatively low cost.

  The rope 100 is formed by twisting a strand made of a heat-welding synthetic fiber yarn, and has a diameter of 2 to 16 mm, particularly 5 to 12 mm. It is preferable in forming.

  Although various known materials can be used for the synthetic fiber yarn, in order to obtain the cap 110 made of the rope 100 having excellent flexibility, compression recovery elasticity, friction strength and tensile strength, it is formed from ester span. Are preferred. For the purpose of design decoration, the rope 100 having various colors and patterns can be appropriately selected.

  The caps 10 and 110 can be mounted not only on chairs but also on furniture such as desks and casters such as furniture, and their rolling can be restrained.

The perspective view of a caster cap. Sectional drawing which follows the II-II line | wire of FIG. The figure which shows the mounting state of a cap. The perspective view which shows the other embodiment of a cap. The figure which shows the mounting state of the cap of FIG. The figure which shows each process of forming the cap of FIG. The figure which shows each process of forming the cap of FIG. The figure which shows each process of forming the cap of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Caster cap 11 Upper opening 12 Lower opening 12a Edge bottom 13 Perimeter wall 13a Inner side surface of peripheral wall 14 Stopper 16 Caster 16A, 16B Wheel 17 Connection shaft 110 Caster cap 111 Upper opening 112 Lower opening 113 Peripheral wall 113a Inner side surface of peripheral wall 100 Rope 130 Main body 131 First end 132 Second end 133 Eye loop 134 Base loop 135 First loop (first loop row)
136 Second loop (first loop train)

Claims (4)

A circumferential wall having a longitudinal direction, a radial direction, and a circumferential direction, and having a radial cross section that is annular, and is fitted to an outer side of a caster formed of a pair of wheels opposed to and spaced apart from each other in the axial direction via a shaft; And extending in the radial direction between the upper opening located at the upper end in the longitudinal direction and the opposing portion of the inner surface of the peripheral wall, and formed between the opposing inner surface of the pair of wheels and the shaft. In the caster cap including a stopper that fits into the space ,
It is formed from a flexible elastic member,
The said peripheral wall and the said stopper can be deform | transformed at least to the said radial direction, The said cap is engage | inserted so that the said stopper may press-contact a part of surrounding surface of the said axis | shaft in the said space. 2. The cap according to claim 1, wherein the cap further includes a lower opening located at a lower end in the longitudinal direction and an edge bottom projecting inward in the radial direction from the lower opening. Said peripheral wall and said stopper, twisted strands comprising a plurality of heat-fusible synthetic fiber yarn, to claim 1 or 2 is formed by organizing a single rope having a predetermined length and diameter The described cap. The caster cap forming method according to claim 3 , wherein the forming method includes:
The rope has a main body having a predetermined length and a diameter, a first end located at one end of the main body, and a second end located at the other end of the main body, and the main body at the first end. So that a loop that can be inserted through the second end portion is formed in an annular shape so that the vicinity including the first end portion is bent in an annular shape, and the first end portion is fixed to the main body in the vicinity portion. A first step of wearing to form an eye loop;
A second step of forming an appropriately sized base loop that should be positioned on the annular bottom by passing the main body from the second end to the eye loop;
The main body intersects a portion forming a part of the base loop to form a first loop with the main body and the base loop, and the first end is inserted through the first loop. Wrap in a state where the loop is tightened around the base loop,
Next, in a portion adjacent to the first loop on the clock or counterclockwise side along the base loop, the main body intersects with a portion forming a part of the base loop, and the main body and the base loop Forming two loops and passing the second end through the second loop and winding the second loop around the base loop;
Thereafter, the third loop to the n-th loop following the second loop are sequentially formed so as to go around the base loop by the same operation, and thereby, from the first loop to the n-th loop in the circumferential direction. Forming a first loop row in parallel, and forming the lower opening by the inner periphery of the first loop row,
The first loop adjacent to the n-th loop of the first loop row is inserted through the second end portion to form a first loop of the row to be the second loop row by the main body, and the first loop Wrap in a state where the second end is passed through the loop and tightened,
Next, passing the second end portion through the second loop of the first loop row adjacent to the first loop of the first loop row on the one direction side along the first loop row, Forming the second loop of the row to be the second loop row in the main body, and winding the second loop through the second end and tightening the second loop;
Thereafter, the third loop to the n loop are sequentially formed following the second loop so as to go around the first loop row by the same operation, and thereby, from the first loop to the n loop in the circulation direction. Form a second loop train in parallel,
Further, an m-th loop row is formed from a third loop row following the second loop row by an operation similar to the operation of forming the first and second loop rows, and the knitting operator uses the hand to A fourth step of appropriately operating the knitting direction so that each loop row after the first loop row extends substantially upward in the longitudinal direction to form the annular side wall;
The first end formed between the adjacent loops in the (m-1) th loop row is located below the second end in a state of being wound around the mth loop row. Passing from the outside of the stitches to the inside thereof, entering the inside of the article, and moving toward the second stitch of the m-1st loop row at the position facing the first stitch on the inner peripheral wall of the article, A straight first transverse portion extending in the radial direction is formed between the inner peripheral walls of the side wall by being wound around the main body forming the m-1st loop row through a second stitch. A fifth step;
The second end is inserted into the second stitch from the outside to the inside, and again enters the inside of the article, and continuously wound clockwise or counterclockwise with respect to the first crossing portion. A spiral loop group extending in the radial direction of the article, wound in a state of being tightened to a main body forming the m-1 loop row through the first stitch while being directed to the first stitch Form the
Next, the second end is inserted into the first stitch from the outside to the inside of the article, and is directed to the second stitch while passing through each loop constituting the loop group. Forming a straight second transverse portion extending in parallel with the first transverse portion in the loop group, and passing the second end portion from the inside to the outside of the second stitch, A sixth step of winding in a state of tightening to the main body forming the m-1 loop row so as to tighten the first and second transverse portions located in the loop group;
A caster cap forming method including , after the sixth step, a seventh step of inserting and fixing the second end portion to an arbitrary stitch of the first to m-th loop rows .

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