JPH0431264Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Field of Application] The present invention relates to a stay connection structure that connects a cross beam of a heald frame and a side stay so as to be able to swing relative to each other.

[Conventional technology]

The above-mentioned heald frame is designed so that even if bending strain occurs in the side stays etc. due to heald drive, the side stays and cross beams will swing relative to each other and damage to the joints caused by bending strain can be avoided. be.

Conventionally, this type of heald frame was made using, for example,
As shown in Japanese Patent No. 81871, the cross beam and the side stay were connected by a caulking type connecting pin so as to swing relative to each other.

[The problem that the idea attempts to solve]

Conventionally, when disassembling and reassembling a heald frame, it was necessary to deform or remove the caulked part so that the connecting pin could be removed, and as a result, it took time and effort to disconnect the side stay and the cross beam. During assembly, new connecting pins must be used in place of the old connecting pins that were removed during disassembly, which is disadvantageous both in terms of work and economy.

The present invention has been developed so that the heald frame is less likely to come loose when in use, yet allows for easy connection and disconnection, and is also advantageous in terms of strain absorption and economy. It's about remodeling.

[Means to solve the problem]

In the heald frame stay connection structure according to the present invention, in order to achieve the purpose, an outer cylindrical pin that connects the cross beam and the side stay so as to be able to swing relative to each other is removably inserted through the cross beam and the side stay. At the same time, an inner pin is removably provided concentrically and relatively rotatably through the outer cylindrical pin, and a retaining collar is provided at one end of each of the outer cylindrical pin and the inner pin. A retaining ring is removably attached to a portion of the pin that is located on the opposite side of the retaining collar and protrudes from the outer cylindrical pin. The functions and effects thereof are as follows.

[Effect]

When the retaining ring is attached, the retaining ring and the outer cylindrical pin come into contact with each other, and the retaining collars of the outer cylindrical pin and the inner cylindrical pin each come into contact with the side stay or cross beam, and the connecting pin to prevent the outer cylindrical pin and inner pin from coming off, and
The side stay and the cross beam are connected so that they can pivot relative to each other. Even if the outer cylindrical pin and the inner pin strongly contact the side stay and the cross beam separately with a retaining collar or the like and rotate together with them, the outer cylindrical pin and the inner pin rotate relative to each other, causing the side stay and the cross beam to rotate together. will begin to swing relative to each other smoothly.

When the retaining ring is removed, the inner pin is moved to the retaining flange side from the outer cylindrical pin, and the outer cylindrical pin is moved to the retaining flange side from the side stay and cross beam, and the side stay is removed without deformation or damage. The connection becomes disconnected so that the cross beam can be separated.

As shown in FIG. 4, the outer cylindrical pin 6 and the inner pin 7
are connected by a screw 9 and this connection is maintained by a locking screw 10, thereby preventing the outer cylindrical pin 6 and the inner pin 7 from coming off when they are in the connecting state, and Outer cylinder pin 6
Compared to the case where the inner pin 7 and the like can be used repeatedly, the connecting state and the uncoupling state can be switched by simply attaching and detaching the retaining ring.

[Effect of idea]

Because of the above-mentioned connection structure using the outer cylinder pin, inner pin, and retaining ring, disconnection is less likely to occur regardless of the distortion of parts such as the side stay, and the side stay and cross beam can smoothly swing relative to each other, increasing strength and durability. It has become highly reliable in all aspects and can be driven at high speed.

In addition, the heald can be connected or uncoupled with the simple operation of attaching and detaching the retaining ring, making disassembly and assembly of the heald more efficient in terms of connecting and separating the side stays and cross beams. Along with this, it became possible to repeatedly use outer cylindrical pins, inner pins, etc. to save costs.

〔Example〕

Next, examples will be shown.

As shown in FIG. 3, a pair of upper and lower aluminum alloy cross beams 1, 1 and a pair of left and right aluminum alloy side stays 2, 2 are combined and connected to form a rectangular frame, and the upper part of the rectangular frame is The heald rod 3 disposed at the bottom is attached to the upper or lower cross beam 1 so as to be supported via a plurality of hook hangers 4, thereby forming a heald frame. This heald frame constructs a heald by attaching a large number of healds 5 between the upper heald rod 3 and the lower heald rod 3, and the side stays 2 are attached at the four corners of the rectangular frame. and the cross beam 1 are connected to each other so as to be able to swing relative to each other based on the stay connection structure shown in FIGS. 1 and 2, and so that they can be easily connected and separated.

That is, a cross beam is provided between a pair of plate-shaped connecting stay parts 2a, 2a, which are provided inside the side stay 2 in parallel in the side stay thickness direction by cutting out the material from which the side stay 2 is made. 1, and an outer cylindrical pin 6 is inserted through the connecting stay part 2a and the cross beam 1 so as to be relatively rotatable, and the outer cylindrical pin 6 is concentrically and relatively rotatably provided. The inner pin 7 is inserted through the inner pin 7, and a C-shaped retaining ring 8 is removably attached to a portion of the inner pin 7 protruding from the outer cylindrical pin 6.

A retaining collar 6a or 7a is integrally molded on one end side of each of the outer cylindrical pin 6 and the inner pin 7, and these retaining collars 6a and 7a sandwich the connecting stay portion 2a and the cross beam 1. The pins 6 and 7 are installed in this state, and the C-shaped retaining ring 8 is placed at the pin location opposite to the retaining collar 7a to prevent the inner pin 7 from coming off. As a result, when the retaining ring 8 is attached, the retaining ring 8 and the outer cylindrical pin 6 come into contact with each other, and the retaining collar 6a
and 7a and the connecting stay portion 2a, the outer cylinder pin 6 and the inner pin 7 are prevented from coming off, and the side stay 2 and the cross beam 1 are in contact with each other.
The connecting stay portion 2a and the cross beam 1 are pivotally connected to each other so that the connecting stay portion 2a and the cross beam 1 are pivotally connected in a state in which they slide relative to each other around an axis P while sliding along a tangent arc line L.

When the retaining ring 8 is removed, the inner pin 7 is pulled out from the outer cylindrical pin 6 toward the retaining collar 7a, and the outer cylindrical pin 6 is pulled out from the connecting stay 2a and the cross beam 1 toward the retaining collar 6a. side stay 2
The cross beam 1 is configured to be in a disconnected state so as to enable separation of the cross beam 1 and the cross beam 1.

[Another example]

The connecting stay part 2a of the side stay 2 is formed as a single piece, and a recessed space into which the connecting stay part 2a enters is formed on the end face of the cross beam 1, and the recessed space forming part of the cross beam 1 is used for connection. The side stay 2 and the cross beam 1 may be connected in such a manner that the stay portion 2a is sandwiched between them.

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]

The drawings show an embodiment of the stay connection structure of the heald frame according to the present invention, and FIG. 1 is a sectional view of the stay connection part;
FIG. 2 is a sectional view taken along the line - in FIG. 1, and FIG. 3 is a front view of the entire heald frame. FIG. 4 is a cross section of a comparative connecting pin. 1...Horizontal beam, 2...Side stay, 6...Outer cylinder pin, 6a...Keeping collar, 7...Inner pin, 7
a... Retaining collar, 8... Retaining ring.

Claims (1)

[Scope of utility model registration request] An outer cylindrical pin 6 that connects the cross beam 1 and the side stay 2 in a relatively swingable manner is removably inserted through the cross beam 1 and the side stay 2, and a pin 6 is provided concentrically and relatively rotatably on the outer cylindrical pin 6. The inner pin 7 is movably inserted through the outer cylinder pin 6 so that it can be freely removed and removed.
and a retaining collar 6a on one end side of each of the inner pins 7.
or 7a, and a retaining ring 8 is removably attached to a portion of the inner pin 7 opposite to the retaining collar 7a and protruding from the outer cylindrical pin 6. Stay connection structure.