JPH01298253A - Work footstool of loom - Google Patents

Abstract

PURPOSE:To readily store a footstool for operators at a position which does not interrupt the carrying of a warp beam and the passage of the operators when the footstool is not used by disposing a means for moving the footstool from an operation position to the side of a storage position and a means for holding the footstool at the storage position. CONSTITUTION:A stopper bolt 10 or 11 is threadedly attached to a supporting projecting member 12 or 13, the stopper bolt 10 or 11 contacting to a stopper 9 to restrict the rotation of a footstool 4 when the footstool 4 is disposed on the surface of the outer side of a supporting member 3 at a working position drawn with a continuous line or at a storing position drawn with a chain line. A means for moving the footstool 4 to the storing position is constituted of a draft spring 15 and a spring hanger 16. A means for holding the footstool 4 at the storing position is constituted of the stopper 9, the stopper bolt 11, the spring 15 and the hanger 16.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a working step stool for a loom, and more particularly to a working step stool used by a worker when performing warp joining work and selvage thread bobbin replacement work. It is something.

[Conventional technology] In recent years, warp beams have been made into large packages as looms have increased in speed, and the height at the rear of the loom has become higher. It has become difficult to perform tasks such as thread bobbin replacement while standing on the floor.

Therefore, we prepared a step stool with a length equal to the width of the conventional loom.
During the warp splicing work and the selvage thread bobbin replacement work, the step stool was placed behind the warp beam, and the work was carried out by standing on the step stool.

[Problem to be solved by the invention] However, if the step stool remains installed at the working position, it will obstruct the transportation of the warp beam and the passage of workers, so it is necessary to move the step stool to a pond when it is not in use. However, due to its weight and size, it was difficult to move it to Haku's location.

The present invention has been made in view of the above problems, and includes:
The purpose of this is to allow the step stool used by workers during warp splicing work to be stored in a storage position where it does not interfere with the transport of the warp beam or the passage of workers when not in use, and to be easily placed in the working position when in use. The purpose of the present invention is to provide a step stool for working on an II machine that can perform the following tasks.

[Means for Solving the Problem 1] In order to achieve the above object, in the present invention, when performing work such as warp joining, the scaffold on which the worker stands is placed at a working position that protrudes rearward from the rear end of the outer periphery of the warp beam. and a storage position that does not interfere with warp beam transportation, and a moving means for moving the scaffold toward the storage position;
A holding means for holding the scaffold placed in the storage position in the same position is provided.

[Function 1] With the above-described configuration, when performing work such as joining warp threads or replacing selvedge bobbins, the scaffold on which the worker stands is placed at a work position that is easy to work with, and when the device is not in use, the warp beam is The equipment is stored and maintained in a storage position that does not interfere with the transportation of equipment or the passage of workers. When storing in the storage position,
When moving the scaffold to the storage position, the moving means moves the scaffold to the storage position, making the storage work easier.

[Embodiment 11] An embodiment embodying the present invention will be described below with reference to FIGS. 1 to 3. At the rear ends of the beam holders 1 provided on both left and right sides of the rear of the loom, support parts 3 having shaft supports 3a are protruded at positions substantially corresponding to the rear ends of the outer periphery of the warp beams 2. A footboard 4 is rotatably supported between the support and holding portion 3 and serves as a foothold on which a worker stands when performing work such as joining the warp threads and replacing the selvage bobbin. A bearing 6 is attached to a support shaft 5 protruding from both ends of the footboard 4, and with the bearing 6 resting on the shaft support 3a of the support section 3,
It is rotatably attached to the tip of the support section 3 via a shaft 3b, and is rotatably supported with respect to the support section 3 by the action of a clamper 8 having a clamp bolt 7 at the tip. A stopper 9 having a locking recess 9a (shown in FIGS. 2 and 3) at its tip is fixed to the protruding end of the support shaft 5 so as to be integrally rotatable therewith. On the outer surface of the support part 3, a foot plate 4 is provided at 5' as shown in FIG. A support protrusion 1 having a collar bolt 10.11 protruding from the outer surface of the support part 3 serves as a positioning member for regulating the rotation of the support part 3 and positioning the work position and storage position.
2.13 is screwed on. A locking pin 14 is protruded from the beam holder 1 at an upper position corresponding to the axis of the support shaft 5, and one end of the locking pin 14 is located in the locking recess 9a of the stopper 9.
! ) A spring hanger 16, to which the other end of a tension spring 15 is hung, is engaged and supported via a roller 17 fixed to its tip.

The tension spring 15 and the spring hanger 16 constitute a moving means for moving the footboard 4 as a scaffold toward the storage position, and the stopper 9, the stopper bolt 11, the tension spring 15, and the spring hanger 16 constitute a moving means for moving the footboard 4.
A retaining means is provided for retaining the holder in the storage position. The footboard 4 is formed into a net shape to make it lighter so that it can be easily moved when setting up the machine, and a handle 4a is attached to the center of the tip.

Next, the operation of the apparatus configured as described above will be explained. When the footboard 4 is not in use, it is placed in the storage position shown by the chain line in FIG. 3. In this state, a counterclockwise rotational moment due to the weight of the footboard and a clockwise rotational moment due to the action of the tension spring 15 are acting on the footboard 4 . Then, the elastic horn of the tension spring 15 and the support shaft 5
The distance from the latching recess 9a of the stopper 9 to the axis of
(moment in the counterclockwise direction)> (moment in the counterclockwise direction), the footboard 4 is biased to rotate clockwise, and the stopper 9
When the tip J contacts the stopper bolt 11, its rotation is regulated i11, and it is held in the storage position shown by the chain line in the figure. When the footboard 4 is held in the storage position, it does not interfere with the conveyance of the warp beam or when an operator moves between the R machines.

When using the footboard 4 to connect the warp threads and replace the selvage bobbin, the operator holds the handle 4a and rotates the footboard 4 downward (counterclockwise in FIG. 3). At the beginning, the magnitude of the moment that rotates the footboard 4 clockwise due to the action of the tension spring 15 is greater than the moment that rotates the footboard 4 counterclockwise due to the weight of the footboard 4, so the operator must apply a certain amount of force. However, after the footboard 4 has been rotated counterclockwise by more than a certain angle, the magnitude of the moment in the counterclockwise direction due to the weight of the footboard 4 is reduced by the force of the tension spring 15 on the footboard 4. Since the moment is larger than the moment for rotating clockwise, the footboard 4 is rotated counterclockwise by its own weight. When the upper surface of the footboard 4 is rotated to the use position where it is in a horizontal state as shown by the solid line in FIG. is held in the use position. In this state, the direction of the tensile force by the tension spring 15 is on a straight line passing through the axis of the support shaft 5, which is the rotation center of the footboard 4, so even if the tensile force by the tension spring 15 is too large, the footboard 4 due to that force is Since the moment for clockwise rotation is O, the footboard 4 is stably held in the working position shown by the solid line in FIG. 3 by its own weight.

When moving the footboard 4 from the working position to the storage position, the operator holds the handle 4a and rotates the footboard 4 upward (clockwise). At the start of rotation, the moment to rotate the footboard 4 clockwise due to the spring force of the tension spring 15 is small, but after it has been rotated to a certain extent, the tension spring 1
5 becomes larger than the counterclockwise moment due to the weight of the tread 4, the tread 4 is automatically moved to the storage position, and the stopper 9 comes into contact with the stopper bolt 11, thereby restricting its rotation. and held in the stowed position. Therefore, from the storage position to the working position,
Alternatively, the footboard 4 can be easily moved from the working position to the storage position.

Although it is possible to replace the warp beam 2 even when the tread plate 4 is attached to the support part 3, it is better to remove the tread plate 4 from the support part 3 when replacing the warp beam 2, that is, to work on the machinery. Work becomes easier. To remove the tread 4 from the support part 3, first remove the roller 17 at the tip of the spring hanger 16 from the latching recess 9a of the stopper 9 while the tread 4 is placed in the storage position. Next, after loosening the clamp bolt 7 of the clamper 8, the clamper 8 is rotated counterclockwise in FIG. 3 to release the grip of the bearing 6 by the clamper 8. Then, in this state, the footboard 4 is removed from the support part 3 by holding the handle 4a. Unlike a conventional step stool, the footboard 4 consists only of the part on which the worker stands, so it is lightweight and easy to move. To attach the footboard 4, perform the work in the reverse order as described above.

[Example 2] Next, a second embodiment will be explained with reference to FIG.

This embodiment differs greatly from the previous embodiments in that the scaffold for work is automatically moved between the work position and the storage position when the operator presses a switch.

That is, an air cylinder 18 serving as a moving means and a holding means is rotatably supported by a bracket 19 at a length of 1 m below the beam holder 1, and the piston rond 2 is rotatably supported by a bracket 19.
A hook 20a formed at the tip of the foot is hooked to a hook 21a of a step stool 21 serving as a foothold, and the hook 20a is arranged substantially horizontally.

The step stool 21 is equipped with two pairs of rollers 22. The air cylinder 18 is connected to a pressure air supply tank 24 via a flexible tube 27 and a solenoid valve 23, and a changeover switch 25 for the solenoid valve 23 is attached to a frame 26. Therefore, in this embodiment, by operating the switch 25, the air cylinder 18 is operated and the step stool 21 is operated.
Since the step stool 21 is automatically moved to the storage position shown by the solid line in FIG. 4 and the working position shown by the chain line in FIG. 4, the movement of the step stool 21 is easier than in the previous embodiment. Furthermore, the arrangement position of the back roller 28 is changed between the front side and the rear side of the loom depending on the diameter of the warp beam used, so when the back roller 28 is placed on the front side, the warp beam 2 If the diameter of the step stool 21 is reduced due to consumption, the step stool 21 can be used even if it is placed in the retracted state, and if work is required in that state, the step stool 2 can be used close to the working position.
1 can be used, making the work easier. Also, when moving the step stool 21 to another location during machine work, remove the hook 20a of the piston rond 20 from the latching portion 21a,
Move the step stool 21 to the pond. At this time, since the step stool is equipped with rollers 22, moving work can be done easily.

[Effects of the Invention] As described in detail above, according to the present invention, when performing work such as warp splicing and replacing selvedge thread bobbins, the scaffold on which the worker stands is not used to convey the warp beam or prevent the worker from passing when the worker is not working. You can easily move it to a storage location where it won't get in the way.

[Brief explanation of the drawing]

1 to 3 do not show the first embodiment embodying the present invention, in which FIG. 1 is a schematic perspective view, FIG. 2 is a front view of main parts, and FIG. 3 is a side view showing the operation. FIG. 4 is a side view of the second embodiment.

Claims (1)

[Claims] 1. The scaffolding on which workers stand when performing work such as warp splicing is movable between a working position that protrudes rearward from the rear end of the warp beam's outer periphery and a storage position that does not interfere with warp beam transportation. A step stool for working on a loom, comprising a moving means for moving the scaffold to the storage position, and a holding means for holding the scaffold placed at the storage position at the same position.