JPH0538268Y2 - - Google Patents

Description

[Detailed explanation of the idea] (Industrial application field) The present invention relates to a fixing structure for a screw rod holder.

(Prior Art) FIGS. 13 and 14 show a fixing structure of a screw holder employed in a conventional cable connection device. That is, a pair of screw rod holders 36' and a cable receiver 37' are sandwiched between a pair of opposing side plates 34'. Each screw holder 36' and cable receiver 3
7' are arranged opposite to each other and separated from each other in a direction perpendicular to the direction in which the side plates face each other (in the vertical direction in the figure). Each screw holder 36' has a pin 5 attached to each side plate 34' at two positions spaced apart in a direction (horizontal direction in the figure) perpendicular to the direction facing the cable receiver 37'.
8' and welding 59', they are connected so as not to be movable in a direction perpendicular to the direction in which the side plates face each other. At approximately the center position between the spaced connection positions, the screw rod 48'
The axial direction of the screw rod holder 36' and the cable receiver 3
7' (in the vertical direction in the figure), it is screwed into the threaded rod holder 36'.

Then, the cable 6' (in the illustrated example, it is constructed by attaching a cap 57' to one end of the wire 56') inserted between each screw holder 36' and the cable receiver 37'. A portion of the cap 57' is pressed and fixed to the cable receiver 37' by a screw 48'.

(Problem to be solved by the invention) However, in the above cable connection device, the screw rod holder 3
6' was fixed by pin 58' and welding 59', so it was not possible to obtain a very high fixing force despite the effort involved.

Further, since the screw rod holder 36' is fixed to the opposing side plate 34' only on both sides in the longitudinal direction, if the screw rod 48' is tightened too strongly, the screw rod holder 36' will It may bend and become plastically deformed.

In view of the above-mentioned circumstances, the present invention aims to provide a simple and strong fixing structure for a screw rod holder that can strongly tighten the screw rod without causing plastic deformation of the screw rod holder.

(Means for Solving the Problems) In order to achieve the above object, the technical means taken by the present invention is to provide a female thread in the longitudinal center between opposing side plates fixed oppositely and spaced apart from each other. In a screw rod holder fixing structure in which a screw holder having a hole is interposed with its female threaded hole facing in a direction perpendicular to the facing direction of the opposite side plate, a connecting piece protruding toward the opposite side plate is attached to the screw holder. A bulging piece is integrally provided at a position offset from the female screw hole in the longitudinal direction and bulges toward the opposite side plate. The connecting piece is fitted and fixed into the provided opening, and the bulging piece is fitted into a positioning recess provided on the opposite side plate.

(Function) The screw rod holder has its connecting piece fitted and fixed into the opening provided on the opposite side plate, and its bulging piece fitted into the positioning recess provided on the opposite side plate, so it cannot be used with pins or welding. It can be fixed between the opposing side plates more easily and firmly than when it is fixed.

On the other hand, the bulging piece provided at the position corresponding to the female screw hole of the screw rod holder is fitted into the positioning recess provided on the opposite side plate, so that when a tightening reaction force from the screw rod is applied, the screw rod holder This prevents the screw from bending in the axial direction of the female threaded hole.

(Example) Hereinafter, an example of the present invention will be described based on the drawings.

FIGS. 1 to 10 show a screw rod holder fixing structure according to the present invention applied to a cord connecting device of a loom.

In FIG. 6, reference numeral 1 denotes a machine frame, inside which a plurality of heald frames 2 are arranged in parallel in the front and back (in the direction perpendicular to the cross section).

Inside each heald frame 2, a plurality of healds 3 are attached in parallel on the left and right. The solid portion of each heald 3 in the vertical direction is provided with an eye (referred to as an eye or mail) 4 through which the warp threads pass.

An actuating device 5 is provided on the lower side of the machine frame 1,
It is connected to the heald frame 2 via a wire (rope body) 6. Note that 7 is a guide pulley for the wire 6.

A pair of left and right tension devices 8 are attached to the upper part of the machine frame 1, and are connected to the upper part of the heald frame 2 via a wire 9 to pull the heald frame 2 upward. Note 1
0 is a guide pulley for the wire 9.

The actuating device 5 is equipped with a pair of front and rear supports 10, as shown in FIG. 7, and a support shaft 11 is supported by both supports 10. A plurality of levers 12 are supported on this support shaft 11 so as to be able to swing from side to side around the axis in parallel. A cam roller 13 is attached to the lower end of each lever 12 and comes into contact with a drive cam (not shown), and the rotation of the cam causes each lever 12 to swing left and right at a predetermined timing.

As shown in FIG. 1, a connecting case 14 is fitted onto each lever 12, and a bolt 15 screwed into the case 14 presses the lever 12 against the inner surface of the connecting case 14.

A bearing body holding portion 16 is provided at one end of the connection case 14, and a holding hole 17 of this bearing body holding portion 16 is provided.
A nylon bearing body 18 shown in FIGS. 8 to 10 is fitted and held therein so as not to be relatively rotatable.

In the bearing body 18, the inner circumferential surface of the shaft hole 20 of the main body 19 is a bearing surface 21, and a lubricant retaining recess 22 is formed in this bearing surface 21. Further, a lubricant injection port 23 is formed on the outer periphery of the main body 19,
The injection port 23 and the recess 22 are connected via a communication path 24. Note that the communication path 24 has a larger axial interval on the radially outer side than on the radially inner side.
Further, an injection port 23 is provided in the bearing body holding portion 16.
A supply channel 25 and a grease nipple 26 are provided which lead to the .

A shaft 27 is supported by the bearing body 18 so as to be rotatable about the front-rear axis. This shaft 27 is composed of an inner and outer double shaft 28 and 29, and the outer shaft 29 is supported by the bearing surface 21 of the bearing body 18. This outer shaft 2
9 has a lubricant retaining recess 2 on the bearing surface 21.
A circumferential groove 30 facing 2 is formed. Also,
The inner shaft 28 is fitted into the through hole 31 of the outer shaft 29, and is formed with an axial protrusion 32.
is engaged with the axial groove of the through hole 31, so that the inner and outer shafts 28, 29 cannot rotate relative to each other.

A coupling device 33 is attached to the inner shaft 28 so as to be relatively non-rotatable. This connecting device 33 is
As shown in FIG. 5, it has a pair of opposing side plates 34, and the inner shaft 28 is inserted into a through hole 35 opened at one end of both side plates 34. Then, the protrusion 3 of the inner shaft 28
2 engages with the axial groove of the through hole 35, so that the inner shaft 28 and the side plate 34 cannot rotate relative to each other. Furthermore, both ends of the inner shaft 28 are caulked to prevent it from coming off from the through hole 35.

The wire (rope body) 6 is connected to the other end of both side plates 34. That is, as shown in FIGS. 2, 4, and 5, a pair of screw rod holders 36 and a cable receiver 37 are sandwiched between the side plates 34.

Each of the screw rod holders 36 and the cable receiver 37 are arranged to face each other and to be separated from each other in a direction perpendicular to the direction in which the side plates face each other (vertical direction in FIG. 4).

The cable receiver 37 is composed of a pair of cylindrical bodies 38 and a pair of block pieces 39 disposed between the cylindrical bodies 38. Each cylindrical body 38 is fixed between the two side plates 34 by inserting the connecting rivets 40 of the two side plates 34.

As shown in FIG. 3, the screw rod holder 36 includes a rectangular parallelepiped-shaped main body 41 and a connecting piece 42 protruding from a pair of opposing surfaces at each end of the main body 41 in opposing directions.
, a bulging piece 43 that bulges out from a pair of opposing surfaces at the center of the main body in opposing directions, and a female screw hole 44 that penetrates through the center of the main body 41 in a manner corresponding to the position of the bulging piece 43 .
It is made up of.

Then, as shown in FIG. 2, the screw rod holder 36
The main body 41 is held between the side plates 34, and the connecting piece 42 is connected to the opening 45 formed in the side plate 34.
is inserted into the Then, from the opening 45, the side plate 3
The tips of each of the connecting pieces 42 projecting outward are caulked.

As a result, the screw holder 36 is attached to each side plate 34 at two positions spaced apart in a direction perpendicular to the direction in which it faces the cable receiver 37 (left-right direction in FIG. 2), and in a direction perpendicular to the direction in which the side plates face each other. Immovably connected.

In addition, the connecting piece 4 between the screw rod holder 36 and the side plate 34
2 between the spaced connection positions via the side plate 34.
is bulged outwardly, and the screw rod holder 36 is disposed in an inner recess (positioning recess) 47 of the bulge 46.
The bulging piece 43 is fitted, and even in this position,
The screw holder 36 is connected to the side plate 34 so as not to be movable in a direction perpendicular to the direction in which the side plate faces.

That is, the connecting piece 42 protruding toward the opposite side plate 34 is connected to the female threaded hole 44 in the longitudinal direction of the threaded rod holder 36.
The opposite side plate 34 is integrally provided at a position offset from the
A bulging piece 43 that bulges out to the side is integrally provided at a position corresponding to the female threaded hole 44 in the longitudinal direction of the screw holder 36, and the connecting piece 42 is provided in a passage 45 provided in the opposite side plate 34. are fitted and fixed, and the bulging piece 43 is fitted into an inner recess (positioning recess) 47 provided on the opposing side plate 34.

In the female threaded hole 44 of the screw holder 36,
The screw rod with head 48 has its axial direction aligned with the screw rod holder 3.
6 and the cable receiver 37 are screwed together in opposing directions.

Moreover, a cable pressing piece 49 is arranged between the screw rod holder 36 and the cable receiver 37. An L-shaped positioning piece 50 is integrally formed from the cable pressing piece 49. The screw rod 48 is loosely inserted into the through hole 51 of the positioning piece 50, and the cable pressing piece 49 is positioned.

Then, the wire 6 is inserted between the cable receiver 37 and the cable pressing piece 49 in a folded manner. In addition,
The folded portion 52 of the wire 6 is wound around a cylindrical body 54 that is fitted around the connecting rivets 53 of the side plates 34. The outer periphery of the cylindrical body 54 has an uneven surface 55 for preventing slipping.

The screw rod 48 is screwed into the screw rod holder 36 to press the wire 6 against the rope receiver 37 via the rope pressing piece 49, thereby fixing the wire 6. At this time, the cable receiver 37 of the wire 6
The pushing reaction force acts along the axis of the screw rod 48, but in the position where the reaction force is applied, the screw rod holder 36 is applied to the side plate 34 via the bulging piece 43, and cannot move in the direction in which the reaction force is applied. is connected to. Therefore, the screw holder 36 is not deformed by the reaction force of the pressing, and the wire 6 can be firmly fixed.

As a result, each heald frame 2 is pulled upward by the tensioning device 8, and when a predetermined lever 12 of the actuating device 5 swings to the right, the
The heald frame 2 corresponding to the lever 12 is pulled up, the warp passing through the eye 4 of the heald 3 of this heald frame 2 is pulled up, and an opening is formed between it and other warp threads.
A weft thread is inserted into this opening.

Further, the means for pressing the cable body 6 is not limited to the above-mentioned one, and for example, as shown in FIG. 11, a cap 57 is attached to one end of the wire 56 to constitute the cable body 6,
This cap 57 may be pressed against the cable receiver 37 with the screw rod 48 via the cable pressing piece 49.

Alternatively, the cable 6 may be directly pressed by the screw rod 48 without using the cable pressing piece 49.

The connecting device 33 may be applied to a loom configured to pull the heald frame 2 downward by a lower tension device 8 and upward by an upper actuation device 5, as shown in FIG. 12.

Further, the present invention may be applied to various types of equipment other than looms.

Further, although two cables are connected to the connecting device 33, one cable may be connected to the connecting device 33.

(Effect of the invention) According to the invention, the screw rod is held by fitting and fixing the connecting piece into the opening provided in the opposite side plate, and fitting the bulging piece into the positioning recess provided in the opposite side plate. Since the body is fixed, the screw rod holder can be fixed between the opposing side plates more easily and firmly than conventional fixation using pins and welding.

In addition, the bulge provided at the position corresponding to the female screw hole fits into the positioning recess and prevents the screw holder from bending, so the screw rod can be strongly tightened without causing plastic deformation of the screw holder. can.

[Brief explanation of the drawing]

1 to 12 relate to embodiments of the present invention,
Figure 1 is a side view of the main parts of the coupling device, Figure 2 is a sectional view taken along line A-A in Figure 1, Figure 3 is a perspective view of the screw holder, and Figure 4 is taken along line B-B in Figure 1. 5 is a longitudinal cross-sectional view of the coupling device, FIG. 6 is a schematic structural explanatory diagram of the loom, FIG. 7 is a partially exploded perspective view of the actuating device, and FIG.
The figure is a front view of the bearing body, Figure 9 is a plan view of the same, and Figure 10 is a front view of the bearing body.
The figures are a sectional view taken along the line C-C in FIG. 8, FIG. 11 is a sectional view of a coupling device according to a different embodiment, FIG.
The figure is a sectional view of a conventional coupling device, and FIG. 14 is a side view of the same. 34...Opposing side plate, 36...Screw rod holder, 42
...Connecting piece, 43...Bulging piece, 44...Female screw hole, 45...Port, 47...Positioning recess (inner side recess).

Claims (1)

[Claims for Utility Model Registration] A threaded rod holder 36 having a female threaded hole 44 in the center in the longitudinal direction is provided between the opposing side plates 34 which are fixed facing each other and spaced apart from each other. In the fixing structure of the threaded rod holder interposed in the direction perpendicular to the facing direction of the threaded rod holder 34, the connecting piece 42 protruding toward the opposite side plate 34 is displaced from the female screw hole 44 in the longitudinal direction of the threaded rod holder 36. A bulging piece 43 that bulges out toward the opposite side plate 34 is integrally provided at a position corresponding to the female threaded hole 44 in the longitudinal direction of the screw rod holder 36, and a bulging piece 43 is integrally provided at a position corresponding to the female threaded hole 44 in the longitudinal direction of the screw rod holder 36. 45, the connecting piece 42 is fitted and fixed, and the bulging piece 43 is fitted into a positioning recess 47 provided on the opposing side plate 34.