Torque limiter and opening and closing member driving device
A technology of torque limiter and limiting member, applied in the direction of transmission, coupling, clutch, etc., can solve problems such as gear or motor damage, and achieve the effect of preventing damage and damage
Active Publication Date: 2020-02-18
SANKYO SEIKI MFG CO LTD
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Problems solved by technology
Therefore, if the gear mechanism does not include a torque limiter, the individual gears or the motor constituting the gear mechanism may be damaged.
Method used
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[0122] In the above-mentioned example, the present invention is applied to the automatic closing device 4 , but the present invention can also be applied to an automatic opening device in which the opening and closing member 2 is arranged at the open position 2B. In addition, in the above example, the opening and closing member driving device 1 (automatic closing device 4 ) rotates the opening and closing member 2 in the vertical direction, but may also rotate the opening and closing member 2 in the horizontal direction.
[0123] In addition, when using the second composite gear 24 (torque limiter 24), it is also possible to arrange so that the driving force from the driving source such as the motor 15 is transmitted to the small-diameter gear 42, and from the small-diameter gear 42 to the large-diameter gear 41. And the output.
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Provided is a durable torque limiter that can be disposed within a gear mechanism. Specifically, a torque limiter (24) has a small-diameter gear (42), a large-diameter gear (41), and a rotation-transmitting mechanism (43) for transmitting rotation between the small-diameter gear (42) and the large-diameter gear (41). The large-diameter gear (41) is provided with a cylindrical part (45) having a large-diameter toothed part (second toothed part) (41a), a plate part (46) on the inner side of the cylindrical part (45), and an annular wall part (47) protruding from the plate part (46). The small-diameter gear (42) is provided with an insertion part (54) inserted into the annular wall part (47). The rotation-transmitting mechanism (43) is provided with slits (63) that are cut into the annular wall part (47) from a second direction (X2), shafts (64) inserted into the slits (63), groove parts (66) which are formed in an outer peripheral surface (54a) of the insertion part (54) and into which the inner-peripheral portions of the shafts (64) are inserted, a coil spring (67) that exerts urging force for urging the shafts (64) toward the inner periphery when the shafts (64) protrude toward the outer periphery from the annular wall part (47), and a regulating part (68) for regulating displacement of the annular wall part (47) toward the outer periphery at the second-direction (X2) end.
Description
technical field [0001] The present invention relates to a torque limiter and an opening / closing member driving device disposed in the middle of a gear mechanism, wherein the opening / closing member driving device transmits a driving force through a gear mechanism to drive an opening / closing member such as a cover or a door. Background technique [0002] Patent Document 1 discloses an opening and closing member drive device that opens and closes an opening and closing member such as a cover or a door. The opening-closing member driving mechanism of this document is a mechanism for closing the lid of an open rice cooker, and includes a motor and a gear mechanism that transmits the driving force of the motor to an output shaft connected to the lid. [0003] prior art literature [0004] patent documents [0005] Patent Document 1: Japanese Patent No. 3076722 [0006] Opening and closing members such as covers and doors are sometimes operated manually. For example, when the o...
Claims
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IPC IPC(8): F16H35/10E05F15/614
CPCA47J27/00F16D7/10F16D43/208F16H35/10
Inventor 石水昭夫
Owner SANKYO SEIKI MFG CO LTD