JPH0248467Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] The invention provides a reinforcement structure for a loom beating device,
More specifically, the present invention relates to a reinforcing structure for a rocking shaft that is a supporting shaft of a reed that swings during beating.

[Problems that conventional technology and ideas try to solve]

As shown in FIG. 1, the reed beating device usually drives a crankshaft 4 having crank parts on the left and right sides of the loom using an appropriate power source.
The rotational motion of the locking shaft 2 is transmitted as a swinging motion to the left and right ends of the locking shaft 2 through the connecting rod 5 and the sword lever 6 connected to the left and right crank parts, and thereby the locking shaft 2 is pivotally supported by the left frame 7 and the right frame 8. The locking shaft 2 is rotated through a certain angle, and the reed 11 is rocked back and forth through a sled sword 9 and a sled 10 connected to the locking shaft 2.

In the above-mentioned reed beating device, strengthening the locking shaft 2 of the reed is an extremely important issue, for example,
When the locking shaft 2 is deflected over the entire weaving width, especially in the direction of the warp 11, due to the reaction force when beating the weft inserted into the warp 11, the reed 1 held in series with it is also deflected. , a curvature occurs in the ``front'' of the weaving, creating weaving steps in the woven fabric. In particular, when the loom is started from a stopped state and beats, the locking shaft 2 tends to bend, which causes the front of the weaving to curve greatly, creating a stop stage in the woven fabric, which can be fatal to the woven fabric. It is not uncommon for this to become a flaw.

The problem of strengthening the locking shaft 2 has become a particularly serious problem in recent years as weaving speeds and widths have increased with the development of shuttleless looms such as fluid looms and rapier looms.

Conventionally, as a measure to strengthen the locking shaft 2 described above, while increasing the outer diameter of the locking shaft 2,
Some devices attempt to compensate for the increase in weight of the locking shaft 2 due to this by making the shaft hollow (see FIG. 3).

However, the method of increasing the outer diameter of the locking shaft 2 by using the hollow locking shaft 2 has space and weight restrictions, and there are limits to preventing the locking shaft 2 from being bent.

On the other hand, instead of the above measures, the locking shaft 2 is made solid and has a small outer diameter, and this locking shaft 2 is provided with a reinforcing beam 12 that is provided along the entire lower surface side of the locking shaft 2 in the weaving width direction. Another possibility is to use a bearing on the upper side of the shaft (see Figure 4).

However, even with such a measure, since the reinforcing beam 12 is provided over the entire weave width direction, the strength against the load received from the locking shaft 2 via the bearing is likely to be insufficient, and the outer diameter of the reinforcing beam 12 is , inevitably becomes large, and the reinforcement beam 12
occupies the entire area in the weaving width direction, resulting in a narrow space, for example, the amount of cloth wound on the cloth roll 13,
Restrictions are placed on the arrangement of various devices.

The present invention was achieved as a result of efforts to solve the above-mentioned problems regarding reinforcement of the locking shaft in a reed beating device.

[Means and actions for solving problems]

That is, the present invention provides a locking shaft 2 that supports the sled 10 holding the reed 1 via the sled sword 9.
in a direction crossing the locking shaft 2,
Moreover, the present invention provides a reinforcing structure for a beating device of a loom, characterized in that the bearing is supported via an auxiliary frame 3 having a plate-like or plate-like structure fixed to a plurality of beams installed between left and right frames. It is something.

The auxiliary frame 3 in the present invention is plate-shaped or has a plate-like structure and is relatively thin, but it does not receive the bending force applied to the locking shaft 2 in a direction perpendicular to the plate surface. Furthermore, since this auxiliary frame 3 is fixed to multiple beams installed between the left and right frames, its strength is close to ideal. be. Moreover, the auxiliary frame 3 can not only take various shapes as a plate surface while ensuring the necessary strength between the plurality of beams, but also can be arranged in a direction transverse to the locking shaft 2 where it is easy to secure space within the loom. Since the device is installed, the installation space for various devices will not be affected by its installation and fixation.

〔Example〕

The illustrated example of FIG. 1 and FIG. 2 showing its side view is as follows:
The locking shaft 2 is composed of a hollow shaft part 201 and a solid shaft part 202 that is fitted inside the hollow shaft part 201 and connected.
An intermediate bearing consisting of a bearing metal 14 and a bearing box 15 is provided, and this intermediate bearing is fixed to the upper side of the auxiliary frame 3, so that the locking shaft 2 is supported at appropriate locations on the auxiliary frame 3. This is what I did. Here, the intermediate bearing is attached to the solid shaft portion 202.
When installing the solid shaft portion 202, the outer diameter near the center of the solid shaft portion 202 is made smaller than the outer diameter of the hollow shaft portion 201, and a bearing metal 14 is provided around the center of the solid shaft portion 202. When the bearing box 15 is provided, it is preferable to make sure that the outer diameter of the bearing box 15 is not much larger than the outer diameter of the hollow shaft portion 201 so as not to limit the space for various other devices. This maintains the lightweight and high rigidity characteristics of the hollow shaft, and further increases the strength of the rocking frame shaft through the auxiliary frame without increasing the size of the intermediate bearing.

The auxiliary frame 3 has a plate-like or plate-like structure. To fix the auxiliary frame 3 to the loom, as shown in FIG.
The auxiliary frame 3 is disposed and fixed over the entire weaving width direction of the loom so that the auxiliary frame 3 extends along the warp 11.
Appropriate locations on the side edges of the auxiliary frame 3 may be fixed to this beam 16. At this time, since the auxiliary frame 3 can have an appropriate plate surface shape between the beams as described above, the beam 1
6, it is sufficient to select a location that does not limit the space of other mechanical parts, and to extend the side edge of the auxiliary frame 3 to the installation location of this beam 16. It is also possible to use existing loom beams.

[Effect of idea]

As explained above, according to the present invention, the auxiliary frame 3 having a plate-like or plate-like structure is fixed to a plurality of beams installed between the left and right frames in a direction transverse to the locking shaft 2. It has a very strong structure, and since the bending force applied to the locking shaft 2 during beating is received in both directions by the plate surface of the strong auxiliary frame 3, the bending of the locking shaft 2 and, in turn, the woven fabric steps. can be effectively prevented. Furthermore, the auxiliary frame 3 can not only take various shapes as a plate surface while ensuring the necessary strength, but also can be arranged in a direction transverse to the locking shaft 2, so it can be fixed in various ways. The practical value of the present invention is extremely high because the space for installing devices is not impaired.

[Brief explanation of the drawing]

FIG. 1 is a front view showing an example of a reinforcing structure in a reed beating device according to the present invention, and FIG. 2 is a side view of the same. FIG. 3 is a front view showing a conventional reed beating device;
FIG. 4 is a side view showing the modified example. The symbols in the figure are as follows. 1...Reed,
2... Locking shaft, 201... Hollow shaft part, 20
2...Solid shaft portion, 3...Auxiliary frame, 4...Crankshaft, 5...Connecting rod, 6...Sword lever, 7...Left frame, 8...Right frame, 9...Sleigh sword, 10...sure, 11
... Warp, 12 ... Reinforcement beam, 13 ... Cloth roll, 14 ... Bearing metal, 15 ... Bearing box, 16
...beam.

Claims (1)

[Scope of utility model registration request] Appropriate locations of the locking shaft 2 that supports the sled 10 holding the reed 1 via the sled sword 9 are fixed to a plurality of beams installed between the left and right frames in a direction transverse to the locking shaft 2. Alternatively, a reinforcing structure for a reed beating device of a loom, characterized in that the bearing is supported via an auxiliary frame 3 having a plate-like structure.