JPH024131Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a heald frame for a loom, and more specifically to a heald frame in which two upper and lower cross beams are connected and fixed by two left and right side stays.

[Conventional technology]

In this type of heald frame, the following (),
() was known.

() A half-cylindrical holding part for the cross beam is formed on the side stay so as to fit over the longitudinal end of the cross beam, and the side stay is riveted in the fitted state at the holding part.

(For example, see Utility Model Application Publication No. 29804) () As shown in FIGS. 4 and 5, a through hole 11a' with a rectangular cross section is bored in the longitudinal direction of each cross beam 11', and the through hole 11a' The protrusions 12a' at both ends of the side stay 12' are fitted inside, and
The cross beam 11' and the side stay 12' are connected and fixed by inserting and fixing a pin 13' across the cross beam 11' and the side stay 12'.

[Problem that the invention attempts to solve]

According to the above-mentioned holding type means, even if there is some flexibility between the inner circumference side space of the holding part and the cross-sectional area of the cross beam, the holding part can be deformed by the riveting, making it strong. Although it is possible to fix the cross beam, the overall weight is increased because the cross beam is thick, has a protruding portion in the longitudinal direction, and has a large holding portion.

Furthermore, according to the insertion type means in () above,
The protrusion 1 of the side stay 12' is installed inside the cross beam 11'.
Since it has a through-hole 11a' into which 2a' is inserted, it is advantageous in that the overall weight can be significantly reduced compared to the above-mentioned enclosing type. However, when assembling such a heald frame, it is necessary to insert the projection 12a' of the side stay 12' into the through hole 11a' of the cross beam 11'.
The work consists of opening a through hole 11 with a certain opening area.
Since it is necessary to insert a protrusion 12a' having a cross-sectional area approximately corresponding to the opening area into a', it becomes troublesome, and when assembling a new heald frame or reassembling the heald frame during maintenance and inspection. There was a problem that workability was poor.

Furthermore, in order to improve the workability, the gap between the through hole 11a' and the protrusion 12a' is increased to make it easier to insert the protrusion 12a' into the through hole 11a'. However, in this case, there is a problem in that the cross beam 11' tends to rattle and vibrate even after being fixed by the pin 13'.

The object of the present invention is to provide a heald frame that is lightweight as a whole and is easy to assemble by devising the structure of the cross beam and the assembly structure between the cross beam and the side stay.

[Means for solving problems]

In order to achieve the above purpose, the present invention has two upper and lower parts.
In a heald frame in which cross beams of books are connected and fixed by two left and right side stays, each of the upper and lower cross beams is provided with a thin plate-like thin part at the middle part in the vertical width direction, Further, the side stay is provided with a thick wall portion that is thicker than the thin wall portion at both ends in the vertical width direction, and the side stay is provided with the thin plate at the end in the longitudinal direction of the cross beam. A clamping part is formed to clamp the thin-walled part of the shape from the thickness direction thereof, and as a result, the following functions and effects are achieved.

[Effect]

(i) The strength of the cross beam in the thickness direction is ensured by the thick parts at both the top and bottom ends, and the middle part is made of a single thin plate. The overall weight can be further reduced.
In other words, it is thicker overall and has a protruding part further outward than the connecting part with the side stay. Even compared to an insertion type cross beam that is formed with two plate-like parts, it is lighter because only one plate-like part exists in the middle part.

(ii) When assembling such a heald frame, the heald frame is assembled by inserting the ends of the cross beams into the clamping parts formed on the side stays, which provides flexibility in the vertical direction. As a result, the task is significantly easier to perform than with conventional insertion methods.

[Effect of idea]

Therefore, according to the present invention, due to the effects (i) and (ii) above, it is possible to further reduce the weight of the cross beam and thereby reduce the weight of the entire heald frame. This improves workability when reassembling.

Moreover, even if the gap between the end of the cross beam and the clamping part of the side stay is made smaller, the workability when sandwiching the end of the clamping part will not deteriorate so much. This also makes it possible to suppress the vibration of the cross beam after it is fixed with the pins.

〔Example〕

Hereinafter, embodiments of the present invention will be described based on the drawings.

As shown in Fig. 3, two upper and lower cross beams 11, 1
1 are connected and fixed by two left and right side stays 12, 12 to form a heald frame 1 according to the present invention. Note that each of the cross beams 11, 11 is made of aluminum in order to reduce its weight;
Each of the side stays 12, 12 is made of a rigid material such as rigid material in order to ensure its rigidity. And the upper and lower cross beams 11, 11 of the heald frame 1
In the loom, there is a heddle 2 that controls the shedding movement of the warp threads in the loom.
Carrier rods 3, 3 supporting both ends of... are connected to each other via mid-sized stock hook hangers 4, respectively.

By the way, to explain the heald frame 1 in detail based on FIGS. 1 and 2, each of the above-mentioned cross beams 11 has a single plate-shaped plate along the longitudinal direction in the middle part in the vertical width direction. A thin wall portion 11a is formed, and
Thick portions 11b, 11b are formed at both ends of the thin portion 11a in the upper and lower width directions, respectively. on the other hand,
Each side stay 12 described above has the thin wall portion 11a.
protrusion 12 that can hold the end of the
a, specifically, a two-plate shaped protrusion 12a having a groove in the middle with a width corresponding to the thickness of the thin portion 11a;
are extended, and each side stay 12 is formed with a holding portion A having a U-shaped horizontal cross section. By inserting the end of the thin part 11a of the cross beam 11 into the clamping part A of the side stay 12, the cross beam 11 is clamped by the side stay 12, and the clamping state extends between the two. The heald frame 1 is constructed by crushing the heads of the rivet-shaped pins 13 and holding them fixedly.

In such a heald frame, since the center of the cross beam 11 is a thin plate-like part 11a, the center part of the cross beam 11' is formed with a through hole 11a' having a rectangular cross section, so that it has a two-plate shape. This will result in a significant weight reduction compared to the conventional heald frame. Furthermore, the side stay 12 is provided with a two-plate-like protrusion 12a, and the end of the thin wall portion 11a can be sandwiched and fixed within the protrusion 12a, so that the side stay 12 and the side beam 11 can be fixed. Connection and fixation with the stay 12 can be easily performed.

[Another example]

B The material of the cross beam 11 and side stay 12 may be other than those in the above-mentioned embodiments. For example, the horizontal beam 11 may be made of metal such as aluminum alloy, synthetic resin such as carbon fiber, wood, or a composite material thereof, and the side stay 12 may be made of a composite material made of metal and synthetic resin. Good too.

(B) A bolt or nut may be used instead of the rivet-shaped pin 13, or the protrusion 12a and the thin wall portion 11a may be adhesively fixed without using the pin 13 or the bolt or nut.

Note that although reference numerals are written in the claims section of the utility model registration for convenience of comparison with the drawings, the present invention is not limited to the structure of the attached drawings by such entry.

[Brief explanation of the drawing]

1 to 3 show an embodiment of the heald frame according to the present invention, FIG. 1 is a front view of the main part, FIG. 2 is a sectional view taken along the line -- in FIG. FIG. 4 is a front view of essential parts of a conventional heald frame, and FIG. 5 is a sectional view taken along the line -- in FIG. 4. 11...Horizontal beam, 11a...Thin section, 11b...
Thick wall part, 12... side stay, A... clamping part.

Claims (1)

[Scope of utility model registration request] It is a heald frame in which two upper and lower cross beams 11, 11 are connected and fixed by two left and right side stays 12, 12, and each of the upper and lower cross beams 11, 11 has an intermediate portion in the vertical width direction. The side stay is provided with a single thin plate-like thin wall portion 11a, and thick wall portions 11b, which are thicker than the thin wall portion 11a, at both ends of the thin wall portion 11a in the vertical width direction. 12, the end portion in the longitudinal direction of the cross beam 11 and the thin plate-like thin portion 11a,
A heald frame characterized by forming a clamping part A for clamping the heald frame from its thickness direction.