JP5050664B2 - Work table in large tire vulcanizer - Google Patents

Description

  The present invention relates to a work table in a large tire vulcanizer, and more specifically, includes an upper mold and a lower mold which are divided into two parts in the vertical direction, and the upper mold supported by the upper frame is rearward when the upper mold is replaced. TECHNICAL FIELD The present invention relates to a work table in a large tire vulcanizer that improves the safety and workability of an operator, in a work table in a large tire vulcanizer that is swung to be exchanged on the work table.

  Conventionally, a large tire vulcanizer for vulcanizing large tires such as construction vehicle tires has an upper mold and a lower mold that are divided into two parts in the vertical direction, and is supported by an upper frame when the upper mold is replaced. Rotate the mold backwards. After that, the worker moves to the rear of the tire vulcanizer and loosens the multiple fixing bolts of the upper mold attached to the upper frame on the work table installed in a plane, and after replacing the mold, the fixing bolt is again (See, for example, Patent Document 1).

However, large tire vulcanizers, particularly so-called tilt-back type tire vulcanizers that turn the upper mold supported by the upper frame backward when changing the mold, are called so-called domes of tire vulcanizers. Since the upper mold part falls down while swiveling backward, it is not possible to secure a space with the workbench, which makes it difficult to install a safety fence around the flat workbench. . Therefore, it is necessary to perform the work carefully when replacing the mold. In particular, the mold replacement work in the large tire vulcanizer has a problem in terms of operator safety.
JP-A-5-193875

  This invention pays attention to such a conventional problem, and provides a work table in a large tire vulcanizer that improves the safety and workability of an operator's mold replacement work on the work table in a large tire vulcanizer. It is for the purpose.

  In order to achieve the above object, the gist of the present invention is that the work table is integrally attached to the side surface of the upper frame.

  Here, a safety fence is provided around the work table, and a safety sensor is provided to detect the worker on the work table and disable the turning operation of the upper mold.

Thus, by attaching the work table integrally to the side surface on the back side of the upper frame , it is possible to improve the safety and workability of the operator's mold replacement work on the work table.

In the present invention, since the work table is integrally attached to the back side surface of the upper frame as described above, the following excellent effects can be obtained.

(a). A work table having an appropriate positional relationship with respect to the mounting position of the upper mold can be secured, and the safety and workability of mold replacement work can be improved.
(b). Conventionally, since the upper mold is moved on the work table in a fixed state, it has not been possible to install a safety fence for preventing falls, etc. In this invention, the work table is integrated with the side surface of the upper frame as described above Therefore, the safety fence can be installed and the safety of the worker can be ensured.
(c). Even when the vulcanizer malfunctions, the work table moves together with the upper frame to which the upper mold is attached, so that a work space can be secured and injury and disasters to workers and the like can be prevented.
(d). Furthermore, by providing a safety sensor, when there is an operator on the work table, the vulcanizer does not operate and safety can be further improved.

  Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.

  FIG. 1 is a perspective view of a work table as seen from the back side of a large tire vulcanizer embodying the present invention, and FIG. 2 is a view when an upper mold supported by an upper frame is swung backward during mold replacement. FIG. 3 is a side view of a large tire vulcanizer embodying the present invention, FIG. 4 is a side view taken along the line AA of FIG. 3, and the large tire vulcanizer 1 is The upper mold 2a and the lower mold 2b are divided, and the upper mold 2a is attached to the upper frame 3 (also referred to as a top ring) by a plurality of fastening members 4 such as bolts.

  Both side surfaces of the upper frame 3 are supported by pivot arms 6a and 6b that are pivotably attached to the base table 5 via a drive motor (not shown), and a mold replacement is provided on the rear side surface of the upper frame 3. A work table 7 on which an operator rides during work is integrally attached.

  The work table 7 has a safety fence 9 erected around the base plate 8, and a mounting frame 10 fixed to the rear side of the upper frame 3 with a bolt 10 a or the like is integrally formed on the terminal part and the upper part of the safety fence 9. Is provided. A passage 11 partitioned by a fence 11a through which an operator enters and exits is installed on the side of the large tire vulcanizer 1, and a safety sensor (not shown) is provided on the door provided on the safety fence 9. Is provided.

  As described above, in the embodiment of the present invention, the work table 7 of the large tire vulcanizer 1 is integrally attached to the side surface of the upper frame 3, so that the work has an appropriate positional relationship with respect to the attachment position of the upper mold 2a. The stand 7 can be secured, and in particular, the safety and workability of the replacement work of the upper mold 2a can be improved.

Further, since the work table 7 of the present invention is integrally attached to the side surface on the back side of the upper frame 3 as described above, it is possible to install a safety fence 9 having a predetermined height on the periphery of the work table 7. Thus, the safety of the worker can be ensured. In addition, even if the vulcanizer malfunctions and the upper mold 2a turns, the work table 7 moves with the upper frame to which the upper mold 2a is attached. Injuries and disasters can be prevented.

  Furthermore, a safety sensor is provided on the base plate 8 of the work table 7 by providing a safety sensor that senses the worker on the work table 7 and disables the turning operation of the upper mold 2a on the door provided on the work table 7. In the case of stagnation, the vulcanizer does not operate and the safety can be further improved.

It is the perspective view of the work table which looked at the large sized tire vulcanizer which implemented this invention from the back side. FIG. 6 is a perspective view of the work table when the upper mold supported by the upper frame is swung backward during mold replacement. It is a side view of the large sized tire vulcanizer which implemented this invention. It is an AA arrow side view of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Large tire vulcanizer 2a Upper mold 2b Lower mold 3 Upper frame 4 Fastening member 5 Base stand 6a, 6b Turning arm 7 Worktable 8 Base plate 9 Safety fence 10 Mounting frame 10a Bolt 11 Passage 11a Fence

Claims (3)

Vertically and a top mold and a lower mold that is divided into two parts, during replacement of the top mold, the worktable in a large tire vulcanizer tilt back formula Ru to pivot the mold on which is supported on the upper frame to the rear,
A work table in a large tire vulcanizer, wherein the work table is integrally attached to a side surface on the back side of the upper frame.   The work table in the large tire vulcanizer according to claim 1, wherein a safety fence is provided around the work table.   The work table in the large tire vulcanizer according to claim 2, further comprising a safety sensor that senses an operator on the work table and disables the upper mold from rotating.

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