JP2002004153A - Weft carrier of rapier loom - Google Patents

Abstract

The present invention has been made in view of the above-mentioned problems of the prior art, and has an arrangement in which the posture of a band in a warp opening and the lower surface of a rapier head is brought into contact with a warp when the warp performs a closing movement. It is an object to set well in consideration of the state. SOLUTION: The weft carrier of the rapier loom of the present invention is composed of a rapier head and a band attached to the rapier head, wherein the lower surface of the band is provided higher than the lower surface of the rapier head.
It is provided along the direction crossing the width direction of the lower surface of the band.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rapier head, a weft carrier provided with a band above the lower surface of the rapier head, and a rapier loom provided with the weft carrier.

[0002]

2. Description of the Related Art Conventionally, in a weft conveyor in which the lower surface of a band is provided higher than the lower surface of a rapier head, the lower surface of the band and the lower surface of the rapier head are parallel to each other in the width direction of the band, and the lower surface of the rapier head and the side surface of the rapier head are substantially perpendicular. Is formed.

[0003]

The band and the lower surface of the rapier head each have an optimum posture in the warp shedding. Here, the posture refers to the degree of inclination of the lower surface of the band extending in the warp direction with respect to the warp in the vertical direction, and the degree of inclination of the lower surface of the rapier head extending in the warp direction with respect to the warp in the vertical direction.

However, in the above-mentioned prior art, since the band and the rapier head are mounted in parallel, the setting is performed with priority given to a favorable posture of the lower surface of the rapier head. For this reason, the posture of the band cannot be obtained in a favorable state, and the band and the warp easily come into contact with each other, causing damage to the band and the warp.

[0005] The optimum posture of the band means that the lower surface of the band is a straight line passing through the weaving cloth, and a line connecting the weaving cloth and the mail of the lower heald at the maximum opening and the warp line. In any given line. More preferably, the center line in the band thickness direction coincides with the warp line. Since the warp line is in a state where the opening of the warp is closed, the warp line is located at a position where the warp finally reaches when the closing movement is performed from the state where the warp is opened. In other words, if the center line in the thickness direction of the band coincides with the warp line, the warp and the band are in the state in which it is most difficult to make contact.

[0006] The optimum position and posture of the lower surface of the rapier head is defined as the lower warp (hereinafter referred to as "lower thread") associated with the closing movement.
Is in contact with the lower surface of the rapier head when the lower thread and the lower surface of the rapier head are aligned. This is because when the lower thread first contacts the lower surface of the rapier head during the closing movement of the warp, if the lower thread simultaneously contacts the lower surface of the rapier head in the warp direction, the load applied to the lower thread is distributed to the lower surface of the rapier head. For this reason, breakage of the lower thread or damage to the lower thread can be prevented to a minimum.

In particular, a guide member for slidingly guiding the weft conveying body has a plate shape extending in the weft insertion direction, and a sleigh in which the weft conveying body slides on the flat lower surface of the rapier head on the flat upper surface of the guide member. In the case of traveling, the lower thread is sandwiched between the lower surface of the rapier head and the guide member during traveling of the weft conveying body, so that the load applied to the lower thread increases. In order to reduce such a load as much as possible, it is necessary that the lower thread and the line on the lower surface of the rapier head match.

The present invention has been made in view of the above-mentioned problems in the prior art, and considers the posture of the band in the warp shed and the lower surface of the rapier head in consideration of the state of contact with the warp when the warp performs closing movement. The purpose is to set well.

[0009]

A weft carrier of a rapier loom of the present invention comprises a rapier head and a band attached to the rapier head, wherein the lower surface of the band is provided higher than the lower surface of the rapier head. The lower surface is provided along a direction crossing the width direction of the band lower surface.

[0010] The rapier loom of the present invention comprises a rapier head and a band attached to the rapier head, the lower surface of the band being provided with a weft carrier provided above the lower surface of the rapier head. Are provided along a direction intersecting with the width direction of the band on the side opposite to the reed.

Further, the rapier loom is provided with a guide member for slidingly guiding the weft conveying body along the weft insertion direction, and the weft conveying body is disposed on the lower surface of the rapier head with respect to the sliding guide surface of the guide member. It runs while sliding.

The height position and posture of the band in the warp shedding are almost the same as the warp warp line.

Further, the lower surface of the rapier head or the lower surface of the band in the warp shed is a straight line passing through the weaving cloth, and the line connecting the weaving cloth and the lower heald mail at the maximum shedding time and the warp line. Matches any straight line that exists between

The center line in the thickness direction of the band in the warp opening coincides with the warp line.

According to the structure of the present invention, the postures of the band and the lower surface of the rapier head in the warp shedding can be set separately. For this reason, for example, it is possible to set both the posture of the band and the lower surface of the rapier head in an optimum state or in the vicinity of the optimum state, or to select and set a preferable state according to the type of the woven fabric or the type of the yarn. It becomes possible.

[0016]

Embodiments of the present invention will be described below in detail with reference to the drawings.

FIGS. 1 and 2 show a first embodiment. The weft conveying body 1a of the rapier loom includes a rapier head 11 and a band 12 attached to the rapier head 11. The weft conveyor 1a reciprocates in the warp shed by the reciprocating rotational movement of the band wheel 121 provided in the loom 2.

A plurality of plate-like guide members 4a for running the weft conveying body 1a are provided at regular intervals along the weft insertion direction, and the guide members 4a are provided with the reeds 3 by clamps 42. It is fixed to the lead holder 5 with screws. The plate-shaped guide member 4a is used for the lower thread 2 when the warp is opened.
1 and the upper portion protrudes into the warp shedding.

The weft conveying body 1a has a sliding guide surface 41a provided on an upper surface of a guide member 4a and a rapier head lower surface 1a.
Slide at 1a. When the weft conveyor 1a travels in the warp shed, the center line in the thickness direction of the band 12 coincides with the warp line 23.

The rapier head lower surface 11a and the sliding guide surface 41a are straight lines X passing through the cloth fell 24 on the opposite side of the reed 3, and the mail 62 of the lower heald 61 at the maximum opening time with the cloth fell 24. , And an arbitrary straight line X existing between the warp line 23. That is, when the warp yarn performs the closing movement, the lower surface 11a of the rapier head, the sliding guide surface 41
a and the lower thread 21 all match. In the present embodiment, the line connecting the cloth fell 24 and the mail 62 of the lower heald 61 at the maximum opening coincides with the lower thread 21.

In the rapier head 11 shown in FIG. 1, the lower surface 11a and the side surfaces 11b and 11b are not formed at substantially right angles, and the side surfaces 11b and 11b and the band 12 are attached so as to be at substantially right angles. .

FIG. 3 shows a second embodiment. The guide member 4a is fixed to the lead holder 5 by a clamp 42, and the weft carrier 1b slides on the slide guide surface 41a of the guide member 4a on the lower surface 11a of the rapier head. Band 1
The center line 2 in the thickness direction coincides with the warp line 23. Also, the rapier head lower surface 11a and the sliding guide surface 41a
Corresponds to the straight line X passing through the weave 24.

The rapier head 11 is formed so that the lower surface 11a and the side surfaces 11b and 11b are formed at substantially right angles, but the side surfaces 11b and 11b and the band 12 are provided so as not to be at substantially right angles.

FIG. 4 shows a third embodiment. The weft conveying body 1c is a modified example of the weft conveying body 1a shown in FIG. 1, and includes a sliding member 111 formed of another material, for example, a reinforced resin forming material, on a part of a lower portion of the rapier head 11. The sliding member 111 may be provided detachably.

The guide member 4b for running the weft conveying body 1c has a sliding guide surface 41b which is a plane for continuously slidingly guiding the weft conveying body 1c over the entire weaving width. The guide member 4b is attached to a lead holder (not shown) for attaching a reed.

The weft conveying body 1c has a sliding guide surface 41b provided on the upper surface of the guide member 4b and the lower surface 1 of the rapier head.
Slide at 1a. When the weft conveying body 1c travels in the warp shedding, the center line in the thickness direction of the band 12 coincides with the warp line 23.

The rapier head lower surface 11a and the sliding guide surface 41b are straight lines X passing through the cloth fell 24 on the opposite side of the reed 3, and have the warp line 23 and the lower thread 21 at the maximum opening.
Coincides with an arbitrary straight line X existing between the lower heald 61 and the straight line Y connecting the mail 62, and the lower thread support 7 is maintained so that the lower thread 21 maintains the position of the coincident straight line X. It is provided between the reed 3 and the heald 61. Since the lower thread 21 is located between the sliding guide surface 41b and the lower surface 11a of the rapier head while the weft conveying body 1c is traveling in the warp shed, the sliding guide surface 41b, the lower surface 11a of the rapier head and the lower thread 21 are disposed. All match. A moquette or the like is provided on the surface of the sliding guide surface 41b to protect the lower thread 21.

FIG. 5 shows a fourth embodiment. The weft carrier 1d is a modified example of the weft carrier 1c shown in FIG.
The center line of the band 12 in the thickness direction does not coincide with the warp line 23. However, the posture of the lower surface of the band 12 is an example that coincides with the straight line X. In the present embodiment, in the case of the conventional weft carrier shown by the dotted line, that is, in the case of the weft carrier in which the lower surface of the band 12 'is provided in parallel with the lower surface 11a of the rapier head 11, the lower thread 21' is closed during the closing movement. The lower thread 21 starts to come into contact with the band 12 at the time of the closing movement of the warp, as compared with contact with the end of the band 12 'on the reed 3 side. Therefore, there is an effect of reducing the contact between the band 12 and the lower thread 21.

Also, in the portion of the band 12 to which the rapier head 11 is not attached, when the lower thread 21 first comes into contact with the lower surface of the band 12 during the closing movement of the warp,
If the entire lower surface of the band 12 is simultaneously contacted in the warp direction, the load applied to the lower thread 21 is dispersed over the entire lower surface of the band 12.

FIG. 6 shows a fifth embodiment. The weft conveying body 1e is an example in which a band 12 is attached to a part of the upper surface of the rapier head lower surface 11a. The shape of the band 12 is not limited, and a band having a known shape may be used. For example, FIG. 6 shows an example in which a downward projection is provided at both ends of the band 12.

In the embodiment described above, the combination of the weft conveying body and the guide member is not fixed, but can be selected at any time according to the type of the woven fabric.
Further, the lower surface of the rapier head and the sliding guide surface are a straight line X passing through the cloth fell on the opposite side of the reed, and a line connecting the cloth fell and the mail of the lower heald at maximum opening, and a warp line. Although the configuration matches the arbitrary straight line X existing therebetween, it is not necessarily limited to the matching, and an angle may be set to the straight line X as needed. Note that a straight line X
May be set to coincide with the straight line Y.

Further, the lower surface of the band is a straight line X passing through the cloth fell on the opposite side of the reed, between the line connecting the cloth fell and the mail of the lower heald at the maximum opening, and the warp line. , Or the center line in the thickness direction of the band coincides with the warp line, but is not necessarily limited to coincidence, and the straight line X or the warp line May be set as necessary.

The guide member for slidingly guiding the weft conveying body is not limited to the guide member for slidingly guiding the lower surface of the rapier head, but may be any other known guide member, for example, the side surfaces of the band at both ends of the band. A similar effect can be obtained for a sliding member that slides and guides the lower surface, or a guide member that supports the weft conveying body with both the band and the rapier head and slides and guides the supported surface.

Further, as shown in the above embodiment, in a weft conveying body in which the lower surface of the band is provided higher than the lower surface of the rapier head, the lower surface of the band is provided higher than at least a part of the lower surface of the rapier head. It should just be.

[0035]

As described above, according to the present invention, the postures of the band and the lower surface of the rapier head in the warp shedding can be set to favorable states, respectively, and damage to the band and the warp can be prevented. It becomes possible.

[Brief description of the drawings]

FIG. 1 is a sectional view of a weft conveying body according to a first embodiment.

FIG. 2 is a partial side view of the loom including the weft conveyor according to the first embodiment.

FIG. 3 is a sectional view of a weft conveying body according to a second embodiment.

FIG. 4 is a cross-sectional view of a weft conveying body according to a third embodiment.

FIG. 5 is a sectional view of a weft conveying body according to a fourth embodiment.

FIG. 6 is a cross-sectional view of a weft conveying body according to a fifth embodiment.

[Explanation of symbols]

 1a, 1b, 1c, 1d, 1e Weft conveyor 2 Loom 3 Reed 4a, 4b Guide member 11 Rapier head 11a Lower surface of rapier head 11b Rapier head side surface 12 Rapier band 21 Lower thread 23 Warp line 24 Weaving 41a, 41b Sliding guide surface

Claims (7)

[Claims] In a weft conveying body comprising a rapier head and a band attached to the rapier head, the lower surface of the band being provided higher than the lower surface of the rapier head, the lower surface of the rapier head extends in a direction intersecting the width direction of the lower surface of the band. A weft conveying body of a rapier loom characterized by being provided along. 2. A rapier head and a band attached to the rapier head, wherein the lower surface of the band is provided with a weft carrier provided above the lower surface of the rapier head, wherein the lower surface of the rapier head has a lower surface in the width direction of the band. A rapier loom characterized by being provided along a direction intersecting on the anti-reed side. 3. The rapier loom is provided with a guide member for slidingly guiding the weft conveying body along the weft insertion direction, and the weft conveying body is disposed on the lower surface of the rapier head with respect to the sliding guide surface of the guide member. The rapier loom according to claim 2, wherein the rapier loom runs while sliding. 4. The rapier loom according to claim 2, wherein a height position and a posture of the band in the warp shedding are substantially the same as a warp line of the warp. 5. The lower surface of the rapier head in the warp shedding is located between a warp line and a straight line passing through the weaving cloth and connecting the weaving cloth and the lower heald mail at the maximum shedding time. The rapier loom according to claim 2, wherein the rapier loom coincides with an arbitrary straight line. 6. A lower surface of the band in the warp shed is a straight line passing through the weaving cloth, and exists between a warp line and a line connecting the weaving cloth and the lower heald at the maximum shedding time. The rapier loom according to claim 2, wherein the rapier loom coincides with an arbitrary straight line. 7. The rapier loom according to claim 2, wherein a center line in a thickness direction of the band in the warp shed coincides with a warp line.