JPH047193Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a heald frame hanging device of a type in which a heald frame suspended by a spring force is pulled down against the spring force.

(Prior art) As warp thread shedding devices, there are a shedding driving device using a cam mechanism and a passive shedding device consisting of a spring. These passive shedding devices include a method of pulling up a heald frame against a spring force, and a method of pulling a heald frame down against a spring force. There are two types of methods. A heald frame hanging device that pulls up the heald frame against spring force is disclosed in Japanese Utility Model Publication No. 54-37899 and Japanese Patent Application Laid-Open No. 52-152559, and as is clear from these conventional devices. A mechanism for adjusting the height position of the heald frame (for example, a turnbuckle) will be placed above the heald frame,
This arrangement position can be said to be a position where it is easy to adjust the height of the heald frame. However, from the viewpoint of shortening the rope connecting the shedding drive device and the heald frame to control shedding motion errors, in the passive shedding device of the heald frame pull-down method, the shedding drive device is moved above the heald frame as in the former conventional device. Generally, a structure in which the heald frame is disposed in the heald frame is adopted, and such a structure greatly hinders the attachment and detachment of the heald frame.

Therefore, it is advantageous for the attachment and detachment of the heald frame to employ a passive shedding device that pulls down the heald frame by disposing a shedding drive device below the heald frame that does not interfere with attachment and detachment of the heald frame. As a negative shedding device of the heald frame pull-down type, the configuration shown in FIG. 7 is common. In the passive shedding device shown in the figure, a cam lever 2 is reciprocated by a cam 1 that rotates in synchronization with the rotation of the machine base.
and the lower end hook portions of the side stays 3a, 3b of the heald frame 3 are latched and connected by rigging 4, 5,
Turnbuckles 6, 7 are interposed between the rigging 4, 5. Note that 8 and 9 are guide rollers. Ropes 10 and 11 are hooked to the upper hook portions of the side stays 3a and 3b, and are connected to jack levers 14 and 15 which are rotatably biased by springs 12 and 13. ing. That is, the turnbuckles 6 and 7 for adjusting the height position are placed below the heald frame 3, but in such a configuration, in order to adjust the height position of the heald frame 3, the woven fabric must be removed. The user must climb under the loom to adjust the height of the heald frame, making the work of adjusting the height of the heald frame extremely troublesome.

(Problems to be Solved by the Invention) Therefore, the present invention provides a heald frame hanging device that can easily adjust the heald frame height position in a passive shedding device of a heald frame pull-down type that allows the heald frame to be easily attached and detached. The purpose is to provide.

Structure of the Invention (Means for Solving Problems) Therefore, the present invention is a loom in which the heald frame is suspended by a spring force and is pulled down against the spring force by a drive mechanism synchronized with the weaving operation. In the heald frame hanging device of the warp shedding device, a connecting body is fixed to a pair of left and right side stays of the heald frame, and one end of the suspension mechanism of the heald frame is attached to the connecting body to suspend and support the heald frame. At the same time, one end of the drive mechanism is individually attached to the connecting body at a position further outward from the attachment position of the hanging mechanism when viewed from the heald frame,
Furthermore, the gist is that a height position adjustment mechanism of the heald frame is provided on the mounting side of the drive mechanism.

(Function) In other words, in the present invention, the connection body for attaching the suspension mechanism of the heald frame and the drive mechanism is directly fixed to the heald frame without intervening rotating elements, sliding elements, etc., thereby eliminating the risk of wear. There is no problem with the height position of the heald frame.

By configuring the connecting body to be fixed to the side stay rather than to the upper frame of the heald frame, the force for vertically moving the heald frame is applied to the side stay of the heald frame via the connecting body. Since the heald frame is not directly applied to the upper frame of the heald frame, the heald frame will not be damaged during violent shedding movements.

In addition, the drive mechanism is mounted at a position farther outward from the heald frame than the mounting position of the hanging mechanism, and a height position adjustment mechanism for the heald frame is provided on the mounting side of the drive mechanism. The height position adjustment mechanism does not interfere with the work when attaching and detaching the heald frame, and the hanging mechanism does not interfere with the work when adjusting the height position, making it very easy to attach and detach the heald frame and adjust the height position. .

Moreover, the height position adjustment mechanism is disposed at a position of a connecting body fixed to a side stay of the heald frame,
Since the height position of the heald frame can be adjusted at the same position as the heald frame or above it, the height position can be adjusted from above the loom, and this height position adjustment work becomes easier.

Furthermore, the suspension mechanism and the drive mechanism are each attached to the connecting body separately, and the height position adjustment mechanism of the heald frame is provided on the side where the drive mechanism is attached, so that the height position of the heald frame can be adjusted. Adjustment work is performed without affecting the suspension mechanism in any way. Therefore, even during the height position adjustment work, the heald frame is reliably suspended and supported by the hanging mechanism, and there is no fear that the heald frame will accidentally fall during the height position adjustment work.

(Example) Hereinafter, examples 1 to 4 that embody the present invention will be described.
This will be explained based on the diagram.

The upper ends of the pair of left and right side stays 22, 23 of the heald frame 21, which are vertically movably supported by guide pieces 55, 56 fixed to both side frames via mounting brackets 61, 62, are located above the upper frame 24. As shown in FIGS. 1 and 2, a connecting body 25 is attached to a bolt 26 on the outside of this protrusion.
It is tightened and fixed. The connecting body 25 has concave surfaces 22a and 23 on the outer surfaces of the side stays 22 and 23.
The main body 27 is fitted and fixed to the main body 27, and the main body 27 is bent so as to surround the upper and lower outer surfaces of the main body 27 and fixed to both the front and rear surfaces, and is joined to the grooves 22b and 23b on both the front and rear surfaces of the side stays 22 and 23. The bent portion 28a of the cover 28 is formed to be inclined along the outer inclined surface of the main body 27.

There are jack levers 2 on both sides above the heald frame 21.
9 and 30 are rotatably supported by shafts 31 and 32, and a plurality of tension springs 3 are attached to one end of the shafts 31 and 32.
Spring hanger 34 connected to 3,63,
35 is hung. One end of the hanging ropes 36, 37 is connected to the arc-shaped engagement portion at the other end of the jack levers 29, 30 with mounting bolts 38, 39 and nuts 40, 41 so that the mounting length can be adjusted. The side is connected to the main body 2 of the connecting body 25 by mounting bolts 42, 43 and nuts 44, 45.
It is screwed and fixed to 7.

A cam 46 is rotatably disposed on the lower side of the heald frame 21 in synchronization with the machine base, and a cam lever 47 is rotatably disposed near the cam 46. A latch 50 affixed to one end of the cam lever 49 is latched to one end of the cam lever 47 . Adjustment bolts 51 and 52 connected to the other ends of the pull-down ropes 48 and 49 are inserted from below between the main body 27 and the bent portion 28a of the cover 28 on the upper side of the connecting body 25, and It is secured to the upper surface of the connecting body 25 by nuts 53 and 54 that are screwed onto the nuts 51 and 52. Therefore,
The adjustment bolts 51 and 52 are located closer to the heald frame 2 than the mounting positions of the mounting bolts 42 and 43 of the hanging ropes 36 and 37.
The side stays 22 and 23 are located at a position away from the outside when viewed from the side stays 1 and are inclined to the mounting direction.
Guide pieces 55, 56 and guide rollers 57, 58 are fixed to the curved surface of the lower bent portion 28a of the cover 28 and both side frames via mounting brights 61, 62. The pull ropes 48 and 49 guided by the tension spring 3
3 and 63, and the cam follower 47a of the cam lever 47 is pressed onto the cam surface of the cam 46. As shown in Fig. 4, the guide piece 5
5 and 56 are provided with guide grooves in the vertical direction corresponding to each heald frame 21.
1 and corresponding pull ropes 48, 49 and side stays 22, 23 are inserted and guided into the guide groove.

In this case, the hanging ropes 36, 37 and the pulling ropes 48, 49 are stretched in the same direction so that the heald frame 21 can move up and down most smoothly.

In this embodiment, the combination of the adjustment bolts 51, 52 and the nuts 53, 54 constitutes the height position adjustment mechanism of the heald frame 21, and the height position adjustment of the heald frame 21 is performed by the screwing positions of the nuts 53, 54. This is done by adjusting the This nut 53,54
is located at approximately the same position as the upper end position of the side stays 22 and 23 of the heald frame 21, and is located above the heald frame 21. Therefore, the height position of the heald frame 21 can be adjusted using the heald frame 21 or the heald frame 21 which is not obstructed by the woven fabric.
This adjustment work is easy as it can be done from the top side. Moreover, in this embodiment, the adjustment bolt 51,
52 is located further outward from the heald frame 21 than the mounting position of the mounting bolts 42 and 43,
Since the side stays 22 and 23 are mounted facing diagonally outward, in the open state, the adjustment bolts 51 and 52 and nuts 53 and 54 of the adjacent heald frames are
are shifted vertically from each other, and the adjacent members do not become an obstacle when adjusting the height position, making the height adjustment work easier.

In addition, the hanging ropes 36, 37 and the pulling rope 4
Since both of 8 and 49 are connected to the connecting body 25 attached to the side stays 22 and 23, the side stays 22 and 49 due to the spring force of the tension springs 33 and 63
The load on the heald frame 23 is small, and there is no risk of deformation or damage to the heald frame 21. Moreover, since the connection in the connecting body 25 does not include a rotating element or a sliding element, there is no fear of wear and the height position of the heald frame 21 will not be deviated.

Furthermore, in this embodiment, the connecting body 25 is connected to the bolt 26.
Since the heald frame 21 is only tightened and fixed to the upper ends of the side stays 22 and 23, it is easy to attach and detach the heald frame 21.

Note that as the suspension ropes 36, 37 and the pull-down ropes 48, 49 become longer, the vibration of the heald frame 21 increases during shedding motion, causing problems such as damage to the warp threads, fuzzing, and damage to the heald frame 21 itself. For example, as shown in FIG. 5, if a rigid bar 59 is used in place of the pull-down rope 48 at a portion that does not come into conflict with the guide roller 57 and the connecting body 25, the above-mentioned problem can be suppressed.

Of course, the present invention is not limited to the above-mentioned embodiment. For example, as shown in FIG. It may also be possible to provide guidance. Alternatively, the connecting body 25 of the embodiment described above may be integrally formed, or the connecting body 25 may be configured so that the tensioning direction of the hanging rope and the pull-down rope is slightly different from each other as necessary, or the connecting body 25 may be configured to It is also possible to attach and set the connecting body 25 at a slightly different position than in the previous embodiment.

Effects of the Invention As detailed above, according to the heald frame hanging device of the present invention, the connecting body to which the heald frame hanging mechanism and the drive mechanism are attached is fixed to the side stay of the heald frame. Since the height position of the heald frame does not go out of order, and the force for moving the heald frame up and down is not applied directly to the upper frame of the heald frame, it is possible to prevent the heald frame from being damaged during violent shedding movements. It can be prevented. Furthermore, since the height position adjustment mechanism of the heald frame is provided at a position farther outward from the heald frame than the mounting position of the hanging mechanism, the height position adjustment mechanism is Also,
The hanging mechanism does not get in the way of the height adjustment work, and these work can be done very easily. Moreover, since the height position adjustment mechanism is located at the same position as the heald frame or above it, the height position adjustment can be more easily performed from above the loom without being obstructed by the heald frame or the woven fabric. Furthermore, since the suspension mechanism and the drive mechanism are each individually attached to the connecting body, and the height position adjustment mechanism of the heald frame is provided on the side where the drive mechanism is attached, when the height position adjustment work is performed, Even in this case, the heald frame is reliably suspended and supported by the hanging mechanism, and there is no risk of the heald frame accidentally falling during height position adjustment work, which is an excellent effect.

[Brief explanation of drawings]

1 to 4 show an embodiment embodying the present invention, in which FIG. 1 is a front view showing a warp shedding device, FIG. 4 is an enlarged sectional view taken along the line A-A in FIG. 1, FIGS. 5 and 6 are front views showing other examples of the present invention, and FIG. 7 is a front view showing a conventional warp shedding device. Heald frame...21, side stay...22,2
3. Connecting body...25, Adjustment bolts...51, 52 and nuts forming the height position adjustment mechanism...5
3,54.

Claims (1)

[Claims for Utility Model Registration] 1. In a heald frame hanging device in a warp shedding device of a loom, in which the heald frame is suspended by a spring force and is pulled down against the spring force by a drive mechanism synchronized with the weaving operation. , a connecting body is fixed to a pair of left and right side stays of the heald frame, and one end of the suspension mechanism of the heald frame is attached to the connecting body to suspend and support the heald frame, and the One end of the drive mechanism is individually mounted at a position further outward from the mounting position of the hanging mechanism when viewed from the heald frame, and a height position adjustment mechanism of the heald frame is further provided on the mounting side of the drive mechanism. Features: A heald frame hanging device in a warp shedding device of a loom. 2. The connecting body includes a main body that is fitted and fixed in a recess formed on the outer surface of the side stay, and is bent to surround the upper and lower outer surfaces of the main body and is fixed to both the front and rear surfaces of the main body, and is fixed to both the front and rear surfaces of the side stay. and a cover joined to grooves on both front and rear surfaces, and the height position adjustment mechanism includes an adjustment bolt inserted between the connecting body and the bent part, and a cover screwed onto the bolt. A heald frame hanging device in a warp shedding device of a loom according to claim 1, which comprises a nut that is secured to the upper surface of the connecting body.