Title:
SERVICE WAGON
Document Type and Number:
Japanese Patent JPH0833525
Kind Code:
A
Abstract:
PURPOSE: To provide a self-propelled service wagon which can move at low speeds suited to the walking speed of a worker and move even on an uphill slope or stairs.
CONSTITUTION: A self-propelled service wagon is formed by providing wheels 2 which are driven by a motor 81 to a vehicle body 1 which contains many food trays. The food service wagon uses an AC servo motor whose revolution is controlled in accordance with the frequency of electric current applied and which increases voltage with a decrease in the frequency as the motor 81. The motor 81 provides a high torque even at a low revolution and can operate the wagon at low speed and even on an uphill slope or stairs.
Inventors:
TSUTSUI HISASHI
OKAGAWA OSAMU
KADA YOSHITERU
OTA AKIHIRO
OCHIAI SHUNSUKE
OKAGAWA OSAMU
KADA YOSHITERU
OTA AKIHIRO
OCHIAI SHUNSUKE
Application Number:
JP17411694A
Publication Date:
February 06, 1996
Filing Date:
July 26, 1994
Export Citation:
Assignee:
MATSUSHITA ELECTRIC WORKS LTD
International Classes:
A47B31/02; A47J39/02; A61G12/00; B60L11/18; (IPC1-7): A47B31/02; A47J39/02; A61G12/00; B60L11/18
Domestic Patent References:
| JP3066504U | 2000-02-25 |
Attorney, Agent or Firm:
Ishida Chochichi (2 outside)
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