JPH0362813B2 - - Google Patents

Description

[Detailed description of the invention] (Industrial application field) The present invention relates to a lubricating device in a tension mechanism.

(Prior Art) In order to prevent the heald frame from dancing or shaking, a loom is provided with a tensioning device that pulls the heald frame.

This tensioning device includes a plurality of tensioning mechanisms connected to the heald frame via wires, and the tensioning mechanisms are comprised of a pair of brackets and a spring interposed between the brackets in an elastic manner.

The bracket has a pair of opposing side plates, and an engagement pin on which a spring is hooked is provided between the side plates.

(Problem to be Solved by the Invention) Conventionally, no means has been provided for providing good and easy lubrication between the engagement pin and the end of the spring, and there has been a demand for a proposal for such a means. .

An object of the present invention is to provide a lubricating device for a tension mechanism that can solve the above problems.

(Means for Solving the Problems) In order to solve the above problems, the means adopted by the present invention is that an engaging pin is provided across both side plates of the bracket, and an elastic body is hooked to the engaging pin. In this invention, a lubricant holding body is provided between the both side plates, adjacent to the engaging pin above and above the end of the elastic body, and impregnated with lubricant.

(Function) The lubricant impregnated into the lubricant holder flows down to provide good lubrication between the engagement pin and the end of the elastic body over a long period of time.

(Embodiment) Hereinafter, an embodiment of the present invention will be described based on the drawings. In Fig. 1, 1 is a machine frame, 2 is a large number of heald frames arranged in parallel, and inside the heald frame 3 vertically arranged.
Many are arranged side by side. An eye (eye or mail) 4 through which the warp threads pass is provided at the center of each heddle 3 in the vertical direction.

5 is an actuating device illustrated in a cam machine, and the heald frame 2
It is arranged below the heald frame 2 to pull down the heald frame 2, and is connected to the left and right sides of the upper part of the heald frame 2 via wires 6. Reference numeral 7 denotes a pulley for guiding the wire 6, which is pivotally supported on the upper part of the machine frame 1. Reference numeral 8 denotes a pair of left and right tensioning devices, which are disposed on each side of the upper part of the heald frame 2 and pull each heald frame 2 upward via a wire 9.

Hereinafter, the tension device 8 will be explained based on FIG. 2, and for convenience of explanation, the left side of FIG. 2 will be described as the outside and the right side as the inside.

11 is a housing, which includes a pair of front and rear side plates 12;
Connecting member 1 connecting the lower outer ends of both side plates 12
It consists of 3rd class. A large number of protrusions 14 protruding outward are arranged in parallel in the front-rear direction on the connecting member 13, and each protrusion 14 has a U-shaped bearing body holder 15 cut out and opening outward.

A number of tension levers 16 are arranged in parallel in the front-rear direction between the side plates 12 of the housing 11, and are rotatably supported by a support shaft 17 in the front-rear direction. The inner end of each tension lever 16 is operatively connected to each side of the corresponding heald frame 2 via a wire 9. A U-shaped bearing body holder 15 that opens upward is formed at the outer end of the tension lever 16 . 19,
Reference numeral 20 denotes a stopper for the tension lever 16, which is disposed between both side plates 12 of the housing 11.

21 is a tension mechanism, each protrusion 1 of the connecting member 13;
A pair of upper and lower T-shaped brackets 22, an elastic body 23, and lubricant holding bodies 24, 25 are interposed between the outer ends of the tension levers 16 and 4 in a resilient manner.
It is composed of etc.

As shown in FIGS. 3 to 6 and 8,
The bracket 22 consists of a pair of front and rear side plates 26, and each side plate 26 has a hook portion 27 on the base side that is substantially horizontal, and a hook portion 27 that protrudes substantially in the vertical direction from the center portion of the hook portion 27 in the left-right direction. The support part 28 is made up of a support part 28.

Between the hook portions 27 of the side plates 26, five engagement pins 29 are arranged in parallel in the left-right direction.

Support portion 28 of both side plates 26 of upper bracket 22
A trapezoidal plate-shaped support 30 is fixed on the inner surface of the hook portion side, and a lubricant holder 24 into which lubricant is impregnated is interposed between these supports 30.

Further, a substantially groove-shaped support 31 is fixed on the inner surface of the hook portion side of the support portion 28 of the both side plates 26 of the lower bracket 22, and the support 31 has a substantially groove-shaped support 31 that opens downward at the bottom of the support 31 near the outer side. An opening 32 is formed.

Furthermore, a lubricant holder 25 is provided within the support 31 and is impregnated with lubricant. The lubricant holders 24 and 25 are made of sponge, cotton, or the like.

In each tension mechanism 21, the number of elastic bodies 23 is 3.
This is inserted between the outer and central engaging pins 29 of both brackets 22. The elastic body 23 consists of a coil spring 33 and a locking piece 34 attached to each end of the coil spring 33, and the locking piece 34 is removably engaged with the engagement pin 29, and each The locking piece 34 is in contact with the lubricant holding bodies 24 and 25.

The support portion 28 of the side plates 26 of each bracket 22 is connected to the protrusion 14 of each tension lever 16 or connecting member 13.
The support portions 2 of the both side plates 26 are disposed to sandwich the support portions 2
A bearing body 36 is rotatably provided between both ends of the support 31 by a mounting shaft 37, and the lower bearing body 36 is located directly below the opening 32 of the support 31.

The bearing body 36 consists of a nylon main body 38, a metal cover 39, a lubricant holder 40, and the like.

The main body 38 is formed into a substantially rectangular shape, and substantially the entire body except the upper part is connected to each tension lever 16 or the connecting member 13.
Bearing body holding part 15 of a shape corresponding to the protruding part 14 of
It is unrotatably engaged with and removably engaged with. A shaft hole 41 through which the mounting shaft 37 is rotatably inserted is formed in the center of the main body 38 .

The mounting shaft 37 consists of an inner shaft 42 and an outer shaft 43, which are double-layered inside and outside.
3 is caulked. Support part 28 and outer shaft 4
At the radially symmetrical locations of the shaft holes 44 and 45 of No. 3,
Grooves 46 and 47 are formed in the axial direction, respectively, and when the protrusions 48 of the inner shaft 42 engage with these grooves 46 and 47, the support portion 2 of the inner shaft 42
8 or the outer shaft 43 is prevented, and wear of the inner shaft 42 due to the relative rotation is prevented. Note that the outer shaft 43 is made of metal or ceramics.

As shown in FIG. 7, on the top surface of the main body 38,
An elongated storage recess 49 in which lubricant is stored is formed, and the inner surfaces on both longitudinal sides of the storage recess 49 are slightly tapered. Three blind holes 50 are formed at the bottom of the storage recess 49, and a suitable one of them is formed into a fine hole 51 reaching the inner peripheral surface of the shaft hole 41 by drilling. Note that the diameter of the pore 51 is set to be equal to or smaller than the width dimension of the storage recess 49.

Incidentally, as shown by the imaginary line in FIG. 6, a circumferential groove 52 communicating with the pore 51 may be formed on the outer circumferential surface of the outer shaft 43.

The cover 39 has a gate shape and is fitted onto the end of the bearing body 36 on the side of the storage recess, and one end of the cover 39 is connected to the support shaft 53.
The protrusions 54 on the inner surfaces of both sides of the other end engage with the engagement recess 55 of the main body 38 of the bearing body 36.
By removably engaging with the cover 39, the cover 39 is fixed in the covering position.

The other end of the top plate portion of the cover 39 is slightly raised to form a raised portion 56, and when the cover 39 is in the covering position, a screwdriver or the like is inserted between this raised portion 56 and the main body 38. This allows the cover 39 to be opened easily. Further, a lubricant supply hose 57 for supplying lubricant into the cover 39 is coupled to the top plate portion of the cover 39 of the upper bearing body 36 .

The lubricant holder 40 is provided inside the cover 39 and impregnated with lubricant, and is made of sponge, cotton, or the like.

According to the embodiment configured as described above, each heald frame 2 is pulled downward by the elastic body 23 of the tensioning device 9 via the tension lever 16 and the wire 9.

When a predetermined heald frame 2 is pulled up by the actuating device 5 to form an opening passing through the eye 4 of the heald 3 of the heald frame 2, the tension lever 16 connected to the heald frame 2 via the wire 9 is activated. It rotates around the support shaft 17 as shown by the imaginary line in FIG.

When the lifting of the heald frame 2 by the actuating device 5 is released, the tension lever 16 returns to its original position due to the elastic force of the elastic body 23 of the tension mechanism 21 corresponding to the heald frame 2, and the heald The frame 2 smoothly returns to its original position.

In the above case, the lubricant soaked into the lubricant holding body 40 in the storage recess 49 of the upper bearing body 36 passes through the pores 51 and enters the shaft hole 41 of the bearing body 36.
It reaches between the inner circumferential surface and the outer shaft 43 of the mounting shaft 37 to lubricate the space between them.

The lubricant that lubricates between the two is the bearing body 3.
The lubricant flows down on the inner surface of the main body 38 of No. 6 and the side plate 26 of the bracket 22, reaches the upper lubricant holding body 24, and soaks therein.

The lubricant that has soaked into the upper lubricant holder 24 gradually passes through the upper locking piece 34 and reaches between the upper locking piece 34 and the engagement pin 29, lubricating the space between them.

Then, the lubricant that lubricates between the upper locking piece 34 and the engagement pin 29 is transmitted through the upper locking piece 34, the spring 33, and the lower locking piece 34, and the lubricant is transmitted between the upper locking piece 34 and the engagement pin 34. 29 to lubricate the space between them.

The lubricant that has lubricated the space between the lower locking piece 34 and the engagement pin 29 flows down over the lower locking piece 34 and soaks into the lower lubricant holder 25 .

The lubricant that has soaked into the lower lubricant holder 25 gradually falls from the opening 32 of the lower support 31 onto the protrusion 14 of the connecting member 13, and the fallen lubricant is deposited on the front and rear surfaces of the protrusion 14. etc., and reaches the outer shaft 43 of the mounting shaft 37 to lubricate the space between the outer shaft 43 and the inner peripheral surface of the shaft hole 41 of the lower bearing body 36.

As mentioned above, the storage recess 49 of the bearing body 36
Since the inner peripheral surface of the shaft hole 41 and the inner peripheral surface of the shaft hole 41 are communicated with each other by the small hole 51, a small amount of lubricant flows from the storage recess 49 to between the inner peripheral surface of the shaft hole 41 of the bearing body 36 and the outer shaft 43 of the mounting shaft 37. Since the lubricant is supplied over a long period of time, each of the lubricated parts mentioned above can be well lubricated for a long period of time.

Furthermore, since a lubricant holding body 40 is provided in the storage recess 49 of the upper bearing body 36 to keep the lubricant soaked in, even if the bearing body 36 moves due to the swinging of the tension lever 16, the lubricant is not absorbed. can be stably stored in the storage recess 49 over a long period of time, and the above-mentioned lubricated parts can be satisfactorily lubricated over a long period of time.

Further, since the lubricant supply hose 57 is coupled to the cover 39 that covers the storage recess 49 of the upper bearing body 36 and is communicated with the inside of the cover 39, the lubrication of the upper bearing body 36 is prevented. When the lubricant soaked into the lubricant holder 40 runs out, the lubricant can be easily supplied to the lubricant holder 40 via the lubricant supply hose 57.

Note that the lubricant may be directly supplied to the lubricant holders 24 and 25.

Alternatively, the lower bearing body 36 may be one without a storage recess, or the support portions 28 of the side plates 26 of the lower bracket 22 may be directly pivotally connected to the protruding portions 14 of the connecting member 13.

Furthermore, the elastic body 23 may be composed only of the coil spring 33.

Furthermore, in the embodiment, the storage recess 49 of the bearing body 36
Although the shaft hole 41 and the shaft hole 41 are made to communicate with each other through the small hole 51, they may be communicated with each other through a long and narrow groove or the like.

(Effects of the Invention) As described in detail above, according to the present invention, the lubricant soaked into the lubricant holder can satisfactorily lubricate the area between the engagement pin and the end of the elastic body over a long period of time. The present invention has the above advantages and is of great practical benefit.

[Brief explanation of drawings]

The drawings show one embodiment of the present invention, in which FIG. 1 is a simplified overall front view, FIG. 2 is a front sectional view of the tensioning device, FIG. 3 is a view taken in the direction of arrow A in FIG. 2, and FIGS. Each figure in the figure is a sectional view taken along line B-B and line C-C in FIG. 3,
6 and 7 are sectional views taken along lines D-D and E-E in FIG. 4, and FIG. 8 is a sectional view taken along line FF in FIG. 5. 22... Bracket, 23... Elastic body, 24...
...Lubricant holder, 29...Engagement pin.

Claims (1)

[Scope of Claims] 1. In a bracket in which an engaging pin is provided across both side plates and an elastic body is hooked to the engaging pin, the engaging pin and the elastic body are placed between the both side plates. A lubricating device for a tension mechanism, characterized in that a lubricant holder is provided above and adjacent to the end and impregnated with lubricant.