JPH07138836A - Apparatus for separating heald frame from opening mechanism of loom - Google Patents

Abstract

PURPOSE:To strengthen the engagement of a heald frame to a supporting rod of an opening mechanism of a loom and to simplify the removing work of the heald frame. CONSTITUTION:A heald frame supporting rod 2 is tiltably erected opposite to each engaging piece 12 placed at the lower end of a heald frame 1. A hook 22 engaging with the engaging piece 12 is formed on the top of the supporting rod 2 and a rotatable locking member 23 for holding the engaged state is provided. Between a pair of right and left heald frame guides 3 for guiding the vertical motion of the heald frame 1, the heald frame guide 3 at the side of the locking member 23 on the supporting rod 2 is made to be separable from the heald frame. A guiding member 4 is placed on the loom frame 6 opposite to the locking member 23 on the supporting rod 2 in a state to be engaged with the locking member 23 according to the horizontal motion of the heald frame.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for separating a heald frame from an opening mechanism in a loom, and more particularly to an improvement of a technique for separating the heald frame from a support rod of the opening mechanism.

[0002]

2. Description of the Related Art Conventionally, various techniques have been adopted for removing a heald frame from a support rod of an opening mechanism.
In the device disclosed in Japanese Examined Patent Publication No. 3-27655,
A heald frame support rod is swingably provided so as to face a locking piece provided at the lower end of the heald frame, and a hook is formed at the upper end of the heald frame, and a holding member is rotatable. It is provided. When the heald frame and the support rod are engaged, the retaining member locks the locking piece that fits into the hook. At the time of disengagement, the holding member is manually rotated to release the locking piece from the hook, and the supporting rod is swung to disengage the locking piece of the heald frame from the hook of the supporting rod.

The device disclosed in Japanese Patent Laid-Open No. 56-53237 has the same structure around the supporting rod as this, but a displacement mechanism composed of an eccentric cam is provided facing the lower part of the supporting rod. There is. When the heddle frame is detached from the support rod, the displacement mechanism is manually rotated to swing the support rod.

Furthermore, in the device disclosed in Japanese Patent Laid-Open No. 62-243846, a notch is formed in a connecting member provided at the lower end of a heddle frame, and a supporting rod can be swung facing the connecting member. It is provided in. A connecting sleeve having a protrusion corresponding to the notch of the connecting member is formed on the upper end of the supporting rod. When the heddle frame and the support rod are engaged, the notch of the connecting member and the projection of the sleeve are engaged and recessed. At the time of separation, the concavo-convex connection is released by moving the heddle frame laterally.

[0005]

By the way, Japanese Patent Publication No. 3-2
In the case of the technology of 7655 and Japanese Patent Laid-Open No. 56-53237, the members arranged below the heddle frame at the time of disengagement, that is, the holding member in the former case and the displacement in the latter case, are displaced. It is necessary to rotate the mechanism manually. For this reason, the operator bends his body, which complicates the work, which inevitably reduces the workability.

Further, in the case of the technique of Japanese Patent Laid-Open No. 62-243846, workability is good because the heddle frame can be disengaged simply by moving it horizontally. However, the connection strength is only relied upon by the notch of the connecting member on the heald frame side and the protrusion of the connecting sleeve on the support rod side, and the concavo-convex engagement is released by the lateral movement of the heald frame. Since the engagement is set, there is a drawback that the heald frame and the support rod cannot be firmly connected.

In view of the circumstances of the prior art, an object of the present invention is to make the engagement of the heddle frame with the support rod of the opening mechanism firm and to simplify the detaching work.

[0008]

For this reason, in the present invention, the number of the locking pieces provided at the lower end of the heddle frame is set to be opposite to each other.
Each heddle frame support rod is erected so that it can swing, and a hook that fits with the above-mentioned locking piece is formed at the upper end of this support rod, and the locking member that holds this fitted state can be rotated. Of the pair of left and right heddle frame guides for guiding the vertical movement of the heddle frame, the heddle frame guide on the same side as the locking member on the support rod is provided so as to be separated from the heddle frame, and the locking member on the support rod is provided. The gist of the present invention is to provide a guide member on the loom frame so as to be opposed to the above and arranged so as to engage with the locking member as the heddle frame moves laterally.

[0009]

When the heald frame is detached from the support rod, the heald frame guide is first retracted from the heald frame as shown in FIG. Then, when the heddle frame is laterally moved in the retreat direction, the locking member on the support rod that swings in the same direction as the heddle frame engages with the guide member as shown in FIG. As a result, the locking member rotates to release the locking piece on the heddle frame. When the heddle frame is further moved laterally in the same direction, the locking piece on the heddle frame is separated from the hook on the support rod, and the heddle frame is completely detached from the support rod as shown in FIG. In this state, the heddle frame is pulled up.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 shows an example of a heddle frame removing device according to the present invention, in which each guide member independently provided for each heald frame has an inclined surface. Only the right half around the heddle frame is shown in the figure, but the left half has substantially the same structure.

A pair of left and right brackets 11 are fixed to the lower end of the heddle frame 1, and each of the brackets 11 has a locking piece 1.
2 is rotatably mounted.

The heald frame 1 is connected to an opening drive mechanism via a support rod 2. That is, a rocker arm 21 is rotatably supported on the lower portion of the frame 6 of the loom, and the lower end of the support rod 2 is connected to an unillustrated shedding drive mechanism via the rocker arm 21. Further, an L-shaped rocker arm is pivotally supported on the lower part of the loom frame on the opposite side (not shown), and the lower end of the left support rod (not shown) is connected to one end of the rocker arm. The other end of the rocker arm is connected to one end of the right rocker arm 6 via a link (not shown). Therefore, when driven by the shedding drive mechanism, the support rod 2 swings left and right in the figure (that is, toward the inside and outside of the loom).

At the upper end of the support rod 2, there is formed a hook 22 having a shape capable of fitting with the locking piece 12 on the heddle frame 1, and the hook 22 is opened on the side facing the locking piece 12. There is. A locking member 23 is rotatably provided at the upper end of the locking member 12 so as to hold the locking piece 12 fitted to the hook 22.

An example of the guide member 4 is shown in FIGS. 1 and 5. The guide member 4 is provided for each heald frame 1 so as to correspond to the support rod 2 independently. Each guide member 4
Is attached to a beam 61 stretched around the frame 6 of the loom via a stay 62. The stay 62 is formed with six vertical holes (not shown) arranged side by side, and each guide member 4 is fastened to the stay 62 with a screw 41 via the corresponding long hole. By loosening the screws 41, the vertical position of each guide member 4 can be individually adjusted according to the mounting position of the corresponding heald frame 1. At the upper end of the guide member 4, the inclined surface 4 is arranged so as to face the tip of the locking member 23.
2 is formed.

An example of the heddle frame guide 3 is shown in FIGS. 6 and 7. The present heald frame guide 3 is for guiding the vertical movement of the heald frame 1. In the illustrated example, since the locking member 23 is provided on the right side with respect to the upper end of the support rod 2, the heald frame guide on the same side, that is, the right heald frame guide 3
Is provided so as to be separated from the heddle frame 1.

That is, at the upper and lower ends of the vertically extending bracket 31, a comb-teeth-shaped guide piece 32 that opens toward the heald frame is formed.
Is attached. Each comb tooth of this guide piece 32 is 1
This corresponds to one heddle frame 1. The support shaft 33 fixed to the back surface of the bracket 31 extends in the horizontal direction outward and is fixed to the frame 6 of the loom.
It is inserted in the shaft hole. A compression spring 35 is interposed between the enlarged portion of the outer end of the support shaft 33 and the stepped portion in the shaft hole of the holder 34, and the support shaft 33 and thus the guide piece 32 are attached to the heddle frame 1.
It is biased in the direction away from. Further, as is apparent from FIG. 7, the ridge-shaped engaging surface 3 is formed on the upper middle portion of the support shaft 33.
6 is formed, and in order to cooperate with this, the holder 34 is provided with a locking piece 37 which is spring-biased downward.
The locking piece 37 can be lifted by an attached knob 38. Therefore, when the support shaft 33 is pressed from the position shown in FIG. 6 toward the heald frame 1 side, the engagement surface 36 of the support shaft 33 and the locking piece 37 on the holder 34 side engage with each other as shown in FIG. The spindle 33 is positioned. This position is a position suitable for guiding the vertical movement of the corresponding heddle frame 1.

Next, the stopper 5 will be described. As shown in FIGS. 1 and 5, a stopper piece 52 is attached to the beam 61 via a stay 51. The side of the stopper piece 52 facing the support rod 2 has a comb tooth shape, and each comb tooth corresponds to one support rod 2.
The stopper 5 is arranged at a position where the support rod 2 engaged with the heald frame 1 and the bottom of the comb teeth of the stopper 5 are in contact with each other.

The operation of the detaching device of the present invention having the above-described structure will be described below with reference to FIGS. 2 to 4 and 8 to 18. In the initial state, the left and right heald frame guides 3 are engaged with the heald frame 1, the hooks 22 of the respective support rods 2 are fitted with the locking pieces 12 on the heald frame side, and this fitting state is the locking member. 23 holds. The locking member 23 is biased clockwise by a tension spring in the drawing. Therefore, the heald frame 1 is connected to the opening drive mechanism via the support rod 2.

When the heald frame 1 is detached from the support rod 2, the opening mechanism is moved so that the heald frame 1 to be removed from the support rod 2 is at a predetermined height position. Then, the heddle frame guide 3 on the right side is retracted from the heald frame 1 (FIG. 2). At the time of this separation, the locking piece 37 of the heald frame guide 3
Need only be lifted via the knob 38 (FIGS. 6 and 7).

Next, the heddle frame 1 to be removed from the support rod 2
Is moved to the right, the supporting rod 2
When the lock member 23 on the support rod 2 also swings to the right, the lock member 23 rotates counterclockwise in the figure while the tip of the lock member 23 on the support rod 2 engages with the inclined surface 42 of the guide member 4 (FIG. 3, FIG. 9).

When the heddle frame 1 is further moved to the right,
The rotation of the locking member 23 advances and the locking piece 12 of the heddle frame 1
Is released, and finally the locking piece 12 separates from the hook 22 of the support rod 2 (FIGS. 4 and 9 to 12). When the locking piece 12 is completely removed, the heald frame 1 is lifted up (FIGS. 13 and 14).

When it is desired to remove all the heald frames 1 at the same time, all the heald frames 1 may be aligned at the closing position, for example, and all the heald frames 1 may be moved to the right at once.

When the heddle frame 1 is engaged with the support rod 2, the procedure basically opposite to the above-described disengagement may be carried out (FIGS. 15 to 18). That is, when the heddle frame 1 is lowered to a predetermined position and moved leftward, the support rod 2 also swings leftward accordingly. Along with this, the locking member 23 also separates from the inclined surface 42 of the guide member 4, but its rotation is blocked by the locking piece 12.

When the support rod 2 comes into contact with the stopper 5 and is prevented from swinging, the locking piece 12 of the heald frame 1 is introduced into the hook 22 of the support rod 2 and fitted therein. At the same time, the locking member 23 rotates to maintain this fitted state. At this time, the heald frame 1 is engaged with the heald frame guide 3 on the left side. In order to facilitate this engagement, it is preferable to form a taper that expands toward the heald frame 1 at each open end of the comb teeth of the left heald frame guide.

In the above example, the guide member 4 is provided with the inclined surface 42, but instead of this, a vertical surface 43 may be provided as shown in FIG. In addition, FIG.
It shows a state in which the heddle frame 1 has moved to the right and the tip of the locking member 23 has begun to come into contact with the vertical surface 43.

In the example shown in the figure, a compression spring 35 is used for the right heald frame guide 3 which can be separated from the heald frame (FIG. 6), but instead of this, the support shaft 33 is simply pushed against the holder 34 by a screw. It may be concluded with. When retracting the heddle frame guide 3, loosen the push screw and hold the holder 34.
The support shaft 33 may be moved with respect to. Further, in the above-described embodiment, the shape of the locking piece 12 provided at the lower end of the heddle frame 1 is hexagonal, but the shape is not limited to this and may be a decagonal shape or a circular shape. Alternatively, as shown in JP-A-56-53237, it may have an irregular shape. Of course, the shape of the hook 22 of the heddle frame support rod 2 is the same as that of the system stopper 12 described above.
It is formed so that it can be fitted.

The mounting position of the stopper 5 may be further to the left than in the case of the above-mentioned embodiment, but in that case, the left heald frame guide must also be provided so as to be separated from the heald frame.

[0028]

EFFECTS OF THE INVENTION Since the heddle frame can be removed from the support rod simply by moving it horizontally, workability is greatly improved. Further, since the locking piece on the heddle frame side is held by the locking member on the support rod side, the reliability of the connection between the two is not impaired.

[Brief description of drawings]

FIG. 1 is a partial cross-sectional side view showing an example of a releasing device of the present invention.

FIG. 2 is a simplified side view showing the operation of the device.

FIG. 3 is a simplified side view showing the operation of the device.

FIG. 4 is a simplified side view showing the operation of the device.

FIG. 5 is a front view showing the periphery of a guide member of the apparatus.

FIG. 6 is a partial cross-sectional side view showing a heald frame guide of the apparatus.

FIG. 7 is a transverse sectional view showing the guide.

FIG. 8 is a side view showing the operation of the detaching device when the heald frame is detached from the support rod.

FIG. 9 is a side view showing an operation of the detaching device when the heald frame is detached from the support rod.

FIG. 10 is a side view showing the operation of the detaching device when detaching the heald frame from the support rod.

FIG. 11 is a side view showing the operation of the detaching device when the heald frame is detached from the support rod.

FIG. 12 is a side view showing the operation of the detaching device when the heald frame is detached from the support rod.

FIG. 13 is a side view showing the operation of the detaching device when the heald frame is detached from the support rod.

FIG. 14 is a side view showing the operation of the detaching device when detaching the heald frame from the support rod.

FIG. 15 is a side view showing the operation of the detaching device when the heald frame is engaged with the support rod.

FIG. 16 is a side view showing the operation of the disengagement device when the heald frame is engaged with the support rod.

FIG. 17 is a side view showing the operation of the detaching device when the heald frame is engaged with the support rod.

FIG. 18 is a side view showing the operation of the disengagement device when the heald frame is engaged with the support rod.

FIG. 19 is a side view showing another example of the guide member.

[Explanation of symbols]

 1 Heald Frame 12 Locking Piece 2 Support Rod 22 Hook 23 Locking Member 3 Heald Frame Guide 32 Guide Piece 33 Spindle 34 Holder 4 Guide Member 42 Inclined Surface 43 Vertical Surface 5 Stopper 52 Stopper Piece 6 Loom Frame

Claims (3)

[Claims] 1. A single heddle frame support rod is erected so as to be swingable so as to face each locking piece provided at the lower end of the heddle frame, and the above-described locking is provided at the upper end of the support rod. A hook that fits with one piece is formed, and a locking member that holds this fitted state is rotatably provided, and is supported by a pair of left and right heald frame guides that guide the vertical movement of the heddle frame. A heald frame guide on the same side as the locking member on the rod is provided so that it can be separated from the heald frame, and it faces the locking member on the support rod and moves on the loom frame along with the lateral movement of the heald frame. A device for removing a heald frame from an opening mechanism in a loom, wherein a guide member is provided so as to engage with the locking member. 2. A device according to claim 1, wherein said guide member comprises an inclined surface for engaging a locking member. 3. The device of claim 1 wherein said guide member comprises a vertical surface for engaging a locking member.