JPH07238465A - Holding frame for cylindrical material - Google Patents

Abstract

PURPOSE:To widely secure a sewing region over a wide region in the circumferential direction on the side circumferential face of a cylindrical material having a nearly truncated cone-shaped cross section by forming a holding frame for fitting the cylindrical material into a driving ring of a machine as a form not largely penetrating into a sewing region of this cylindrical material. CONSTITUTION:This holding frame is a holding frame A for cylindrical material for fitting a cylindrical material (hat) B having a nearly truncated cone-shaped cross section into a driving ring 22 capable of carrying out reciprocating rotation around a basic shaft and reciprocating movement in the direction along the basic shaft based on frame-moving data of a sewing machine. The holding frame is provided with a receiving frame 40 capable of attaching to the driving ring 22 on the same shaft as the basic shaft and setting large-sized opening of the cylindrical material B to the outer circumference on the free end side in a state in which the axial line is inclined to the basic shaft and a pressing body 50 for pressing the circumferential face of the large-sized opening in the cylindrical material B to the outer circumference of the receiving frame 40 and holding the face. The free end of the receiving frame 40 is set to a shape which follows the edge of large-sized opening in the cylindrical material B set in the outer circumference.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention has an object of embroidering a side surface of a tubular product having a truncated cone shape in cross section, such as a finished product (cap or hat). The present invention relates to a holding frame to be mounted on the sewing machine side.

[0002]

2. Description of the Related Art For example, Japanese Patent Application Laid-Open No. 2-251660 discloses a technique of a cap frame for an embroidery sewing machine. In this technique, when a cap with an eaves is set on a holding frame (cap frame), the periphery of the cap frame part, which is the embroidered part, is pressed from the outside by a presser. The central portion of the presser body is made to project in a mountain shape toward the eaves side of the hat, so that the hat set on the holding frame can be stretched without wrinkling at the base of the eaves. As a general technique, the holding frame on which the cap is set as described above is attached to the drive ring of the sewing machine, and the drive ring reciprocally rotates around the basic axis together with the holding frame based on the frame movement data of the sewing machine.
Moreover, it is adapted to reciprocate in the direction along the basic axis.

[0003]

By the way, as represented by the above-mentioned cap, when a cylindrical object having a substantially truncated cone shape in cross section is attached to the drive ring by the holding frame, the cylindrical object is covered. In order to position the side peripheral surface, which is the sewn portion, in parallel with the needle plate of the sewing machine, the tubular object must be set in the holding frame with its axis inclined with respect to the basic axis. As a result, the free end of the receiving frame on which the tubular object is covered in the holding frame largely enters into the tubular object due to its circumferential position. Therefore, in the tubular object at this portion, the sewing area is reduced by the amount that the receiving frame is excessively inserted. Further, in a sewing machine of a type in which embroidery or the like is performed on the side peripheral surface of a tubular object over a wide range in the circumferential direction, a part (center portion) of the receiving frame and the pressing body in the circumferential direction like the holding frame of the above publication. Even if it is formed into a chevron shape, the sewn area in other portions remains reduced for the above reason.

The problem to be solved by the present invention is that a holding frame for mounting a tubular object having a substantially truncated cone shape in cross section on a drive ring of a sewing machine greatly penetrates the sewing area of the tubular object. By making the shape such that it does not project, a wide sewing area can be secured over a wide range in the circumferential direction on the side peripheral surface of the tubular article.

[0005]

In order to solve the above-mentioned problems, the holding frame for a cylindrical object in the present invention is constructed as follows. First, in the structure according to claim 1, the driving ring capable of reciprocating rotation about the basic axis and reciprocating movement in the direction along the basic axis based on the frame movement data of the sewing machine has a substantially frustoconical cross section. A holding frame for a tubular object for mounting the tubular object, which can be mounted coaxially with the drive ring on the drive ring, and has a large diameter on the outer periphery on the free end side. A receiving frame in which the diameter opening is set with its axis inclined with respect to the basic axis, and a retainer for holding the peripheral surface of the large diameter opening of the tubular object against the outer periphery of the receiving frame. Is equipped with. The free end of the receiving frame is set to have a shape that follows the edge of the large-diameter opening in the cylindrical object set on the outer periphery of the receiving frame. In the structure according to the second aspect, the shape is set to follow the free end within the range in which the pressing body does not project from the free end of the receiving frame. According to the configuration of claim 3, when the pressing body presses the cylindrical object on the outer periphery of the frame,
It has a plurality of teeth that can bite into this cylindrical object.
In the structure according to claim 4, when the pressing body presses the tubular object on the outer periphery of the receiving frame, the pressing member is relatively engaged with the receiving frame in the direction along the basic axis by the mutual engaging portions. It is configured to be prevented from moving. According to a fifth aspect of the present invention, in the receiving frame and the pressing body, there are provided an auxiliary receiving frame and an auxiliary pressing body that hold a portion of the tubular object separated from the large-diameter opening along the basic axis by a sewing area. Each is provided.

[0006]

According to the structure of the present invention, since the free end of the receiving frame has a shape following the large-diameter opening of the cylindrical object set on the outer periphery thereof, the receiving frame is cylindrical. A large sewn area is secured over a wide area in the circumferential direction on the side peripheral surface of the tubular object without greatly squeezing into the sewn area from the large-diameter opening of the object. Therefore, for example, when embroidering or the like on the side peripheral surface of the hat, the restrictions on the embroidered portion and the embroidery pattern are alleviated. In the structure according to claim 2, in the range in which the pressing body does not project from the free end of the receiving frame,
Since the shape follows this free end, the large-diameter opening of the tubular object can be firmly pressed and held by the retainer on the outer circumference of the frame while securing a wide sewing area for the tubular object. You can In the configuration according to claim 3, when the tubular body is pressed against the frame and held by the pressing body,
The teeth of the pressing body bite into the cylindrical object to prevent the cylindrical object from shifting. According to the structure of claim 4, when the tubular body is also pressed against and held by the pressing body against the receiving frame, the intermediate portion of the pressing body is held together with the tubular body in the receiving frame as the tubular article is sewn. It is prevented from moving relative to each other. With the configuration according to claim 5, the tubular body can be held in a stable posture in the direction along the basic axis by the receiving frame and the auxiliary frame portion of the pressing body.

[0007]

Embodiments of the present invention will now be described with reference to the drawings. In the following embodiments, the present invention is applied to a holding frame for a cap in a sewing machine for embroidering on the side circumference of a cap. Embodiment 1 FIG. 1 is a perspective view showing a main part of a sewing machine (embroidery sewing machine), and FIG. 2 is a front view of FIG. The moving body 10 shown in these drawings is driven to reciprocate in the direction of arrow Y in FIG. 1 based on frame movement data for embroidery. Further, on the upper surface of the moving body 10, a rod 24 that is reciprocally driven in the arrow X direction based on frame movement data for embroidery is also arranged. A cylinder-shaped hook base 30 is arranged below the movable body 10 at a position corresponding to a sewing machine head (not shown). A hook 32 is built in the hook base 30, and a needle bar 3 is provided on an upper portion of a needle plate 34 provided on the upper surface thereof as shown in FIG.
The sewing needle 37 attached to the lower end of 6 is located.

The movable body 10 has support brackets 12 arranged on both sides of the pot base 30, and a support plate 14 shaped to avoid interference with the pot base 30.
Is fixed. On the front surface of the support plate 14,
A cylindrical drive ring 22 is assembled. The inner peripheral surface of the drive ring 22 is rotatably mounted on each of the support rollers 1 at three positions on the front surface of the support plate 14.
It is supported by 6. Therefore, the drive ring 22 can freely rotate with respect to the support plate 14 around a central axis (hereinafter, referred to as a basic axis) parallel to the arrow Y direction. The drive ring 22 is designed to rotate while its flange 23 is guided by the guides 18 fixed at three positions on the front surface of the support plate 14.

A wire 2 is provided on the outer periphery (groove) of the drive ring 22.
6 is rolled up. Both ends of the wire 26 pass through a pulley 28 supported by the moving body 10 and the rod 2
4 are respectively coupled to a pair of blocks 25 fixed on the shaft. Therefore, when the rod 24 is reciprocally driven in the arrow X direction based on the frame movement data, the drive ring 22 is reciprocally rotated about the basic axis through the movement of the wire 26. In addition, the moving body 1
When 0 is reciprocally driven in the arrow Y direction based on the frame movement data, the drive ring 22 reciprocates in the direction along the basic axis via the support bracket 12 and the support plate 14. Thus, the drive ring 22 is based on the frame movement data for embroidery, and the hook base 30 and the needle bar 36 of the sewing machine head are used.
It reciprocally rotates around the basic axis and moves back and forth along the basic axis. The wire 26 is routed around the outer circumference of the drive ring 22, and the distance between the two blocks 25, whose both ends are connected to each other, is set so that the drive ring 22 is interlocked with the drive ring. It is designed to rotate 22 more than once.

In FIG. 3, the drive ring 22 has a holding frame A for a hat.
2 is shown in a right side view, and FIG. 4 shows only the holding frame A in a perspective view. As is apparent from these drawings, the holding frame A is a ring-shaped receiving frame 4
0 and a band-shaped pressing body 50 are mainly configured. The receiving frame 40 is attached to the outer periphery of the drive ring 22 coaxially with the basic shaft, and can be integrated with each other by a lock mechanism (not shown).
Moreover, the outer periphery of the receiving frame 40 on the free end side is a setting surface 48 of the hat B shown by a phantom line in FIG.

FIG. 5 shows a sectional view of FIG. As is clear from this drawing, the receiving frame 40 is formed by connecting an outer ring 40a and an inner ring 40b to each other. The inner circumference of the outer ring 40a is the drive ring 2
2 is attached to the outer circumference of the inner ring 40b, and the outer circumference of the inner ring 40b is the set surface 48. Also the outer ring 40
A plurality of positioning pins 46 are fixed to the outer periphery of a at regular intervals along the circumferential direction, and a flange 42 is integrally formed beside each positioning pin 46.

The pressing body 50 is made of a material having appropriate elasticity such as a stainless steel plate, and the receiving frame 40.
It can be elastically deformed to fit the outer periphery of the. This presser body 5
One end of 0 is rotatably connected to a bar 43 fixed to the flange 42 of the receiving frame 40 by a connecting tool 58, as is apparent from FIG. Presser body 5
A hook 60 is fixed to the other end (free end) of 0, and a lock lock 62 that can be locked by being hooked on the hook 60 is connected to another bar 44 fixed to the flange 42. It is rotatably connected by.

FIG. 6 is a plan view showing the state where the receiving frame 40 is expanded and the pressing body 50 is separated from the receiving frame 40, and FIG. 7 is a partially enlarged perspective view showing the pressing body 50. There is. As is clear from these drawings, the pressing body 5 is
0 is formed with an insertion hole 52 through which the eaves B1 of the hat B is inserted, and the positioning pin 46 of the receiving frame 40 is also formed.
Are formed with a plurality of positioning holes 54. Moreover, a plurality of teeth 5 are formed along both edges of the insertion hole 52 on the surface of the pressing body 50 on the side that presses the cap B.
5, 56 are integrally formed, and a plurality of teeth 57 are also formed on the pressing body 50 at positions near both ends of the edge on the side corresponding to the setting surface 48 of the receiving frame 40.

The hat B is a tubular member whose cross-sectional shape is substantially frustoconical, and the side peripheral surface, which is centered on the forehead portion continuing to the eaves B1 and extends in the circumferential direction from there, is the embroidered portion. . The cap B is set by covering the opening (the large-diameter frustoconical opening) on the setting surface 48 of the receiving frame 40, and at this time, the side peripheral surface is covered with the needle plate 34.
In order to position it in parallel with, it is necessary to tilt the axis of the hat B with respect to the basic axis as shown in FIG. 3 or 5.

Therefore, the setting surface 4 of the receiving frame 40
8 (the end of the inner ring 40b) is the set surface 4
The hat B set in No. 8 has a shape following the edge of the opening. The edge of the pressing body 50 on the side corresponding to the setting surface 48 also has a shape that follows the end of the setting surface 48. That is, the end of the setting surface 48 and the edge of the pressing body 50 are curved in an arc shape that matches the edge of the opening of the cap B, as is apparent from FIG. The end portion of the outer ring 40a forming the receiving frame 40 is also curved following the edge of the opening of the cap B.

Next, a procedure for using the holding frame A will be described. First, as shown in FIG. 4, with the free end of the presser body 50 being free from the receiving frame 40, the opening of the hat B is set on the setting surface 48 of the receiving frame 40. Next, the presser body 50 is wound along the receiving frame 40 from the outer peripheral side of the cap B while passing the eaves B1 through the insertion hole 52, and is locked to the hook 60 provided at the free end of the presser body 50. The lock 62 is hooked and locked. As a result, the peripheral surface of the opening of the hat B is received by the presser body 50 in the receiving frame 4
It is pressed against the 0 setting surface 48 and held. At this time, the end of the setting surface 48 of the receiving frame 40 and the edge of the pressing body 50 follow the edge of the opening of the cap B as shown in FIG. It is possible to avoid large infiltration into the sewing area from the opening, and this sewing area is secured widely.

When the hat B is set on the holding frame A as described above, each positioning hole 54 of the pressing body 50 is inserted into the receiving frame 40.
Engage with the respective positioning pins 46 of. The positioning pin 46 and the positioning hole 54 function as an engaging portion that prevents the cap B from moving together with the pressing body 50 in the direction along the basic axis during embroidery. The reason why each positioning hole 54 is elongated in the longitudinal direction (circumferential direction) of the pressing body 50 is to allow the positioning pin 46 and the positioning hole 54 to be displaced due to the difference in the material thickness of the cap B.

FIG. 8 is an enlarged sectional view showing a part of the holding frame A on which the hat B is set. As is apparent from this drawing, the hat B has a receiving frame 4 with a belt-shaped sweat stop B2 sewn on the inner periphery of its opening pulled out.
It is put on the outer circumference of 0. Then, the teeth 55 formed on one edge of the insertion hole 52 in the pressing body 50.
While biting into the base of the eaves B1 to press down that portion, the teeth 56 formed on the other edge of the insertion hole 52 bite into the vicinity of the sewn portion of the sweat stop B2 to press down that portion. There is. Further, the teeth 57 shown in FIG. 6 bite into and hold the outer circumference of the opening of the cap B on both sides of the eaves B1. As shown in FIG. 7, the tips of the teeth 56 that bite into the sweat stop B2 are sharp, so that the sweat stop B2 can be firmly held.

In order to prevent the cap B set in the holding frame A from losing its shape, an interlining made of rolled paper or the like in a cylindrical shape may be provided inside the cap B. In this case, as shown in FIG. 8, the setting surface 48 of the receiving frame 40, that is, the inner ring 40
Wrap the interlining material B3 around the outer circumference of b,
0b and the outer ring 40a. However, this interlining B3 is not always used.

With respect to the holding frame A having the hat B set, the receiving frame 40 is attached to the drive ring 22 as shown in FIG. 3 or 5. At this time, a portion of the side circumference of the hat B located between the hook base 30 and the sewing needle 37 is fixed to the front surface of the support plate 14 so as to be positioned on the upper surface side of the hook base 30. Supported by the body 20. It should be noted that the support body 20 is provided with a slit 21 for passing a sewing needle 37, as is apparent from FIG.
It is formed long in the direction.

Then, based on the frame movement data for embroidery, the drive ring 22 reciprocally rotates about the basic axis and moves reciprocally along the basic axis as described above.
The hat B mounted on the drive ring 22 by the holding frame A is also driven in the same manner. When driving this hat B,
By the cooperation of the sewing needle 37 and the shuttle 32 which are driven in synchronization with this, embroidery is applied to the side circumference of the hat B located on the needle plate 34. Since the holding frame A secures a wide sewing area around the side of the cap B as described above,
The restrictions on embroidery patterns are alleviated. Further, since the cap B can be rotated more than once by the reciprocating rotation of the drive ring 22, it is possible to meet the demands of various embroidery modes in combination with securing a wide sewing area.

Embodiment 2 FIG. 9 is a perspective view showing a holding frame A of Embodiment 2, and FIG. 10 is a side view showing a state where a cap B is attached to the drive ring 22 of the sewing machine by the holding frame A of FIG. 9, FIG. [Fig. 4] is a sectional view of a state in which the hat B is also worn. As shown in these drawings, the receiving frame 40 of this embodiment is provided with an auxiliary receiving frame 70 at a position apart from the setting surface 48 along the basic axis. The auxiliary receiving frame 70 supports the inner circumference near the top B4 with the side circumference (sewing area) separated from the opening of the hat B. Therefore, the auxiliary receiving frame 70 is attached to the receiving frame 40 so that the auxiliary receiving frame 70 can be moved and adjusted in the direction along the basic axis according to the height (depth) of the cap B.

On the other hand, the pressing body 50 of this embodiment has a narrower width than that of the first embodiment, and as shown in FIGS.
Only the outer circumference of the opening is pressed. The pressing body 50 includes an auxiliary pressing body 74 corresponding to the auxiliary receiving frame 70, and has a rectangular frame body 80 as a whole. One end of the frame body 80 is rotatably coupled to the bar 43 fixed to the flange 42 of the receiving frame 40, and a lock lock 76 is attached to the other free end portion. Also with respect to the frame body 80, the distance between the pressing body 50 and the auxiliary pressing body 74 can be adjusted in accordance with the movement adjustment of the auxiliary receiving frame 70 with respect to the receiving frame 40.

When the opening portion of the hat B is set on the setting surface 48 of the receiving frame 40 in the second embodiment, the auxiliary receiving frame 70 is located inside the top portion B4 of the hat B inside. Therefore, the frame body 80 is wound from the outside of the hat B along with the receiving frame 40 and the auxiliary receiving frame 70, and the lock lock 76 at its free end is hooked on the hook 72 formed on the receiving frame 40 to be locked. As a result, the opening of the hat B is pressed against the setting surface 48 of the receiving frame 40 by the pressing body 50, and the vicinity of the top B4 of the hat B is pressed against and held by the auxiliary receiving frame 70 by the auxiliary pressing body 74.
The pressing body 50 of the second embodiment also includes teeth (not shown) that bit into the outer periphery of the opening when the cap B is set. Further, a rubber material or the like for slip prevention is attached to the surface of the auxiliary pressing body 74 in contact with the hat B. As described above, in the second embodiment, as shown in FIGS. 10 and 11, the wearing state of the hat B by the holding frame A is stable, and the posture of the hat B during sewing is properly maintained. Therefore, it is possible to eliminate the support 20 provided on the support plate 14.

Third Embodiment FIG. 12 is a perspective view of a holding frame A according to the third embodiment.
The present embodiment is a further improvement of the second embodiment, and the auxiliary receiving frame 70 is constructed by welding both ends of a round bar 70a bent in an arc shape to the supporting member 70b. Further, the pressing body 50 and the auxiliary pressing body 74 are independent of each other. That is, one end of each of the presser body 50 and the auxiliary presser body 74 is rotatably coupled to one bar 43 fixed to the flange 42 of the receiving frame 40, and the other free end portion of each of them is connected. A lock lock 76 is attached to each of them.

A band-shaped stainless steel plate or the like is used for the auxiliary pressing body 74, and the auxiliary rod 74 is bent in the width direction thereof to form the round bar 7.
It is formed so as to cover about one-third of the circumference in the sectional shape of 0a. Moreover, this auxiliary presser 74
Is bent with a curvature along the round bar 70a with respect to its length direction, and is divided into three parts 7 in this length direction.
5 is flat in both the width direction and the length direction. These flat portions 75 can be easily elastically deformed, whereby the auxiliary pressing body 74 can be put along the entire circumference of the round bar 70a, and the state can be returned to the free state of FIG. .

When the hat B is set on the holding frame A of the third embodiment, the setting surface 4 of the receiving frame 40 in the state shown in FIG.
8, the opening of the hat B is set, and in this state, the pressing body 50 is wound from the outside of the hat B along with the receiving frame 40, and the lock lock 76 at its free end is formed on the receiving frame 40. Hook it on the hook 72 and lock it. Next, while properly tensioning the side circumference of the hat B, the auxiliary pressing body 74 is
Is attached to the auxiliary receiving frame 70 from the outside of the hat B, and the lock lock 76 at its free end is hooked on the hook 72 of the receiving frame 40 to lock. In this way, the cap B can be set in an appropriate posture with respect to the holding frame A by individually pressing and holding the opening of the cap B and the vicinity of the top B4. In the vicinity of the top B4 of the hat B, the cloth is sandwiched between the outer peripheral surface of the auxiliary receiving frame 70 and the curved auxiliary pressing body 74, and is firmly held.

[0028]

According to the present invention, a receiving frame and a pressing body in a state in which a tubular object such as a cap is attached to a driving ring of a sewing machine,
Since the large-diameter opening of the tubular article does not significantly squeeze into the sewing area, a wide sewing area can be secured in a wide circumferential direction on the side circumferential surface of the tubular article, for example, an area for embroidery or the like on the side circumference of the hat. And restrictions on embroidery patterns are alleviated. Further, in the present invention, while securing a wide sewing area for the tubular object,
The tubular object is always properly attached to the drive ring of the sewing machine, which prevents pattern displacement such as embroidery.

[Brief description of drawings]

FIG. 1 is a perspective view showing a main part of a sewing machine.

FIG. 2 is a front view of FIG.

FIG. 3 is a side view showing a state in which a holding frame for a hat is attached to the sewing machine side.

FIG. 4 is a perspective view showing only a holding frame.

FIG. 5 is a side sectional view of a state in which a cap is attached to the sewing machine side by a holding frame.

FIG. 6 is a plan view showing the holding frame in a developed state.

FIG. 7 is an enlarged perspective view showing a part of a presser body.

FIG. 8 is an enlarged cross-sectional view showing a part of a holding frame in which a hat is set.

FIG. 9 is a perspective view showing a holding frame according to a second embodiment.

FIG. 10 is a side view showing a state in which the hat is attached to the sewing machine side by the holding frame of FIG.

FIG. 11 is a side sectional view showing a state in which the cap is also worn.

FIG. 12 is a perspective view showing a holding frame according to a third embodiment.

[Explanation of symbols]

 22 Drive ring A Holding frame 40 Receiving frame 50 Presser body B Cap

Claims (5)

[Claims] 1. A tubular object having a substantially truncated cone shape in cross section is provided for a drive ring capable of reciprocating rotation about a basic axis and reciprocating movement in a direction along the basic axis based on frame movement data of a sewing machine. A holding frame for a tubular object for mounting, which can be attached coaxially to the drive shaft with respect to the drive ring, and has a large-diameter opening on the free end side of the tubular object. A receiving frame that is set in a state where its axis is inclined with respect to the basic axis; and a pressing body that presses and holds the peripheral surface of the large-diameter opening portion of the tubular object on the outer periphery of the receiving frame, A holding frame for a tubular object, characterized in that the free end of the receiving frame is set in a shape following the edge of the large-diameter opening of the tubular object set on the outer periphery thereof. 2. The tubular article according to claim 1, wherein the pressing body has a shape that follows the free end of the receiving frame within a range that does not project from the free end. Holding frame. 3. The presser body is provided with a plurality of teeth capable of biting into the tubular object when the tubular object is pressed against the outer periphery of the receiving frame. 2. The holding frame for the tubular article according to 2. 4. When the pressing body is pressed against the outer periphery of the receiving frame of the tubular object, relative movement of the pressing body in the direction along the basic axis is caused by mutual engaging portions with respect to the receiving frame. 4. The holding frame for a tubular object according to claim 1, wherein the holding frame is configured to be blocked. 5. The receiving frame and the presser body are respectively provided with an auxiliary receiving frame and an auxiliary presser body that hold a portion of the tubular object separated from the large-diameter opening along the basic axis by a sewing region thereof. The holding frame for a cylindrical object according to claim 1, 2, 3 or 4, wherein the holding frame is provided.