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Overhead transport vehicle

A technology of cranes and ceilings, which is applied in the direction of motor vehicles, railway vehicles, and heavy-duty blocks to achieve the effect of suppressing swing and vibration transmission

Inactive Publication Date: 2013-10-23
MURATA MASCH LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, in the technologies disclosed in Patent Document 1 and Patent Document 2, there is a technical problem that the vibration generated in the transport vehicle is easily transmitted to the conveyed objects.

Method used

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Examples

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Embodiment Construction

[0054] Hereinafter, embodiments of the present invention will be described with reference to the drawings.

[0055] First, refer to figure 1 The overall structure of the transport system of the present invention will be described. The transport system of the present invention includes a trolley as an example of a "crane". figure 1 It is a top view showing the overall structure of the conveyance system.

[0056] exist figure 1 Among them, the transportation system according to the present embodiment is configured to include a rail 100 , a trolley 200 , and a controller 300 .

[0057] The rail 100 is laid on the ceiling, for example, and is made of metal such as aluminum and stainless steel.

[0058] A plurality of trolleys 200 are arranged on the track 100 . Each trolley 200 travels along the rail 100, thereby being able to transport the FOUP which is the object to be transported.

[0059] Furthermore, each vehicle 200 has an on-board controller 205 . The on-vehicle cont...

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Abstract

This overhead transport vehicle is provided with a traveling unit (210), a carrying unit (220), and a swing suppressing member (270). The traveling unit (210) travels on a track (100). The carrying unit (220) stores a subject (400) to be carried, and carries the subject. The swing suppressing member (270) can reciprocate between a pressing position and a retracted position. The swing suppressing member has a pressing section (273), lever sections (271, 272), and an urging member (274). The pressing section presses the side surfaces of the subject. One end side of the lever sections supports the pressing section, and the other end side of the lever sections is pivotally supported to the carrying unit. The urging member urges the pressing section to the subject side. The pressing section has a main body section (750), sliding sections (731, 732), and elastic bodies (761, 762). The main body section is pivotally supported to the lever sections such that the main body section can rotate. The sliding sections are slidably supported to the main body section. The elastic bodies are disposed between the main body section and the sliding sections, and elastically slides the sliding sections.

Description

technical field [0001] The present invention relates to a crane, and more particularly to a crane for conveying objects to be conveyed, such as containers containing various substrates and the like for semiconductor device manufacturing, on rails. Background technique [0002] As a conventional transport vehicle, a suspension type transport vehicle (so-called OHT: Overhead Hoist Transport: Overhead Hoist Transport) is known. Suspension-type transport vehicles transport objects such as FOUPs (Front Opening Unified Pods) by traveling on rails laid on the ceiling. Such a transport vehicle may include a fall prevention member and a swing suppression member. The fall prevention member prevents the object from falling by protruding to the lower side of the object being transferred. The swing suppression member is formed to be rotatable in conjunction with the drop prevention member, and suppresses swing by pressing the object to be conveyed. For example, Patent Document 1 discl...

Claims

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Application Information

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IPC IPC(8): B66C13/06B65G1/00B66C11/06B66C17/04
CPCH01L21/67733B66C13/06B61B3/00
Inventor 小林诚
Owner MURATA MASCH LTD
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