JP3085027U - Loom heald frame - Google Patents

Abstract

(57) [Problem] To provide a heald frame that suppresses deformation vibration of a frame stave during operation and does not cause heald breakage or thread breakage even when used in a wide loom or a high-speed loom. SOLUTION: A heald frame main body 1 and a reinforcing beam 10 are provided.
Consists of The reinforcing beam 10 is made of an extruded material made of an aluminum alloy, and has a base portion 11 and a relatively thin intermediate portion 1.
2 and an enlarged portion 13 at the edge. The reinforcing beam 10
It is fixed to at least one of the upper and lower frame staves 2. In the fixing method, the reinforcing beam is fixed by abutting the base portion 11 of the reinforcing beam to the top surface of the frame stave 2 or by bolting the base portion 11 into a groove 20 formed in the frame stave 2.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to a heald frame suitable for a loom having a large vibration during operation, such as a wide loom or a high-speed loom.

[0002]

[Prior art]

 In wide looms and high-speed looms, the frame staves, which are the upper and lower frames of the heald frame during operation, are bent and vibrated in the vertical direction in an arcuate shape, causing breakage of healds and yarns. Conventionally, in order to prevent this, a center stay is attached to the center of the heald frame so as to bridge the upper and lower frame staves, or a stabilizer rod is provided outside the frame stave so as to be parallel. , Suppressing the vibration of the frame stave.

[0003]

[Problems to be solved by the invention]

 However, each of the conventional vibration prevention methods has a disadvantage. For example, in a method in which a center stay is provided at the center of the hold frame, unevenness of the weave (vertical streaks) may occur due to the presence of the center stay. In the method of providing a stabilizer rod, simply arranging the rod in parallel with the frame stave does not provide a sufficient damping force. For example, Japanese Patent Application Laid-Open Nos. 1-137243 and 6-41841 disclose the method. As shown, it is necessary to apply tension to the rod, and as a result, there is a problem that the structure becomes complicated and the manufacturing cost increases.

In view of the above, the present invention provides a heald frame having a simple structure, sufficient vibration damping force, and low manufacturing cost.

[0005]

[Means for Solving the Problems]

 The technical means of the heald frame of the present invention comprises a heald frame main body and a reinforcing beam, and the reinforcing beam is fixed to at least one of the upper and lower sides of the frame stave of the heald frame main body.

Further, the reinforcing beam is made of an extruded material, and comprises a base, a relatively thin intermediate portion, and an enlarged portion of the edge, and the base is fixed to the top surface of the frame stave. It may be. Furthermore, it is also possible for the base to be bolted on and fixed to the frame stave. It is also possible that the base is fixedly fitted in a groove formed at the end of the frame stave by a method of fitting.

[0007]

[Embodiment of the invention]

 An embodiment of the heald frame of the present invention will be described based on an example of the drawings. As shown in FIG. 1, the heald frame main body 1 includes a frame stave 2 of upper and lower frames, and a side stay 3 of left and right frames. Then, a heald rod 4 is attached to the frame stave 2, and a heald 5 is hung over this. In the figure, reference numeral 6 denotes a sliding guide plate, and reference numeral 7 denotes a coupling with a vertical driving device.

Reference numeral 10 denotes a reinforcing beam, which is attached to the upper frame stave 2. The reinforcing beam 10 is made of an aluminum alloy and is made by extrusion. As shown in FIG. 2, the cross-sectional shape of the beam 10 has a mounting base 11 at the lower end thereof, an intermediate portion 12 thereon has a relatively thin wall, and the upper end has an enlarged portion 13. Therefore, consideration has been given to increasing the strength against deflection.

The beam 10 is fixed by bolts in the embodiment shown in FIG. That is, bolt holes 14 and 15 are provided at the top of the frame stave 2, and a long nut 16 is inserted into the upper hole 17 of the frame stap 2, and a bolt 18 is inserted through the upper surface of the base 11 placed on the upper surface of the frame stave. It is a form that is tightened and fixed.

FIG. 3 shows another embodiment in which the reinforcing beam 10 is fixed. In this embodiment, a groove 20 is formed at the top of the frame stave 2, and the base 11 of the reinforcing beam is fitted into and fixed to the groove. Also, in order to increase the bonding strength between the groove 20 and the base 11, the joint surfaces 21 of the two are tapered in reverse. As a method for attaching and detaching the base 11 and the groove 20, a method of sliding the base 11 from the end face of the groove 20, opening both side walls 22 of the groove 20 once on both sides, fitting the base 11, and then closing again. A fixed method is suitable.

As described above, since the reinforcing beam 10 is made using an extruded material, the length can be freely set, and mass production is possible. The reinforcing beam 10 may be of a size and shape as necessary according to the length of the heald frame body 1 and the operating speed. That is, it may be attached only to the upper part of the frame stave 2 as shown in the figure, or may be attached to both upper and lower sides. Further, it may be attached only to the central portion of the frame stave 2, or may be attached along the entire length. Further, the fixing method of the reinforcing beam 10 to the frame stave 2 may be freely selected, and may be any as long as it can be easily attached and detached and has sufficient strength at the time of fixing. By attaching such a reinforcing beam 10, the strength against bending of the heald frame is increased, and even when the heald frame is wide or at high speed, the vibration due to the bending deformation of the frame stave is suppressed, and the heald breakage and the like are prevented. The occurrence of yarn breakage can be suppressed. Further, since the expanded portion 13 is present at the edge of the reinforcing beam 10, the strength against bending deformation is further increased.

The present invention is not limited to the above embodiment, but can be freely modified and implemented within the scope of the claims of the present invention. In particular, the length of the reinforcing beam 10, the cross-sectional shape, the fixing method to the frame stave, and the like are free.

[0013]

[Effect of the invention]

 Since the heald frame of the present invention has a reinforcing beam attached to the frame stave, it has high strength against bending, suppresses deformation vibration during operation, and can prevent heald breakage even when used for wide looms and high speed looms. Thread breakage can be prevented. Further, as compared with the conventional stabilizer rod type, there are advantages that the structure is simple, the manufacturing cost is low, and the cost can be reduced.

According to the second aspect of the present invention, since the reinforcing beam is made of an extruded material, it is suitable for mass production, and is light in cross-sectional shape and can obtain a sufficient deflection suppressing force. It is extremely useful.

[0015] In the third aspect, since the fixing is performed by the bolting method, the attachment and detachment are easy and a sufficient fixing strength can be obtained.

According to the fourth aspect, since the fixing is performed by the fitting method, the number of parts can be reduced, the cost during manufacturing can be reduced, and the fixing force can be maintained for a long term.

[Brief description of the drawings]

FIG. 1 is a front view of an embodiment of a heald frame according to the present invention.

FIG. 2 is a perspective view of a main part in an exploded state.

FIG. 3 is a sectional view of a main part of another embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Heald frame main body 2 Frame stave 10 Reinforcement beam 11 Base 12 Intermediate part 13 Enlarged part 14, 15 Bolt hole 16 Long nut 18 Bolt 20 Groove 21 Joining surface 22 Side wall of groove

Claims (4)

[Utility model registration claims] 1. A heald frame for a loom, comprising a heald frame main body and a reinforcing beam, wherein the reinforcing beam is fixed to at least one of the upper and lower frame staves of the heald frame main body. 2. The reinforcing beam is made of extruded material, and comprises a base, a relatively thin intermediate portion, and an enlarged portion of an edge, and the base is fixed to the top surface of the frame stave. The heald frame of a loom according to claim 1. 3. The heald frame of a loom according to claim 2, wherein the base is fixed to the frame stave by bolting. 4. The heald frame of a loom according to claim 2, wherein the base is fixedly fitted in a groove formed at an end of the frame stave.