Multi-shaft drive device

A multi-axis drive and action technology, applied in the direction of transmission, gear transmission, transmission control, etc., can solve the problems of light weight and space saving of the output shaft, unfavorable economy of the electromagnetic clutch, etc., and achieve lightweight space Effect

Inactive Publication Date: 2012-05-23
NHK SPRING CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] Among the drive devices using electromagnetic clutches described in Patent Documents 1 and 2 of the above-mentioned patent documents, the electromagnetic clutch is economically unfavorable due to cost.
In this regard, the drive devices described in Patent Documents 3 and 4 contribute to cost reduction because the clutches are mechanical, but they do not take into account the weight reduction and space saving of the output shaft selection mechanism.

Method used

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no. 2 Embodiment approach

[0099] Figure 5 as well as Figure 6 The second embodiment of the present invention is shown. This second embodiment is a state in which the rotation axis of the motor 10 is provided so as to be perpendicular to the rotation axis of the first input gear 12 in the configuration of the above-mentioned first embodiment.

[0100] At the front end of the motor shaft 11 of the motor 10, such as Figure 6 As shown, the third input gear 11a constituting a bevel gear is fixed. On the other hand, an input shaft 16 is fixed to the center of the first input gear 12, and a fourth input gear 16a constituting a bevel gear meshing with the third input gear 11a is fixed to the tip of the input shaft 16.

[0101] In this second embodiment, when the motor 10 rotates, the rotation of the motor shaft 11 is transmitted from the third input gear 11a to the fourth input gear 16a, the first input gear 12 rotates, and the second input gear 12 meshing with the first input gear 12 rotates. The input...

no. 6 Embodiment approach

[0121] [7] The sixth embodiment: Figure 12 to Figure 16

[0122] (1) Configuration of the sixth embodiment

[0123] Figure 12 as well as Figure 13 A multi-axis drive device according to the sixth embodiment is shown. Reference numeral 110 in these figures is a cam member (option member). The cam member 110 is a rectangular plate-shaped member that is long in the horizontal Y direction, and is supported by a guide support member not shown in the longitudinal direction (Y direction, Figure 13 The positive and negative directions of the medium paper) can move freely. Both sides of the cam member 110 along the longitudinal direction are cam surfaces 111 , and a plurality of concave portions 112 opened in the thickness direction are formed at predetermined positions on the cam surface 111 . Moreover, both sides of the concave portion 112 of the cam surface 111 are convex portions 113 along the Y direction. The running part from the concave portion 112 to the convex porti...

no. 7 Embodiment approach

[0143] [8] The seventh embodiment: Figure 17 ~ Figure 19

[0144] The cam member 230 of the seventh embodiment is formed in a rectangular parallelepiped shape, and is supported and held by a guide member not shown. Figure 17 Move up and down in poses where the mid-length direction is horizontal. A turntable shaft 231 having threads formed on its outer peripheral surface is screwed to one end of the cam member 230 so as to penetrate from above. A disc-shaped turntable (not shown) is fixed concentrically to the upper end of the turntable shaft 231 , and when the turntable is rotated, the cam member 230 moves upward or downward according to the rotation direction. That is, the ball screw mechanism is constituted by the turntable shaft 231 and the cam member 230 .

[0145] Recesses 233 are formed on both side surfaces 232a and 232b of the cam member 230 via slopes. The number of recesses 233 and the formation locations are arbitrary. In this case, the upper end and lower end...

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Abstract

A lighter weight and space conservation are achieved by employing a mechanical clutch with a simplified structure when driving a plurality of output shafts by means of a single motor. Output gears (21) are disposed in a manner enabling movement towards and separation from a plurality of second input gears (14) to which the rotation of a motor (10) is transmitted, while a cam (41), which presses toward the second input gears (14) and has a plurality of recesses (42) disposed around the exterior thereof, is disposed on the interior of the output gears (21). By rotating the cam (41) and inserting pins (24) on the output gears (21) into the recesses, the output gears (21) are moved towards the second input gears (14), and the output gears (21) mesh with the second input gears (14).

Description

technical field [0001] The present invention relates to a multi-shaft drive device that drives a plurality of output shafts with a suitable single motor, which is suitable for use in, for example, a power seat for a vehicle or the like. Background technique [0002] In vehicle seats, the position of multiple parts can be adjusted to suit the occupant's position, such as sliding in the front-rear direction as a whole, moving up and down in the height of the seat surface, or inclination of the seat back (seat back), etc. Body shape and posture form. Adjustment of these movable parts is performed manually, but as a more convenient form, electric seats that are adjusted by motor drive are provided. [0003] To independently drive a plurality of movable parts, a structure in which motors are connected one-to-one to each of the output shafts connected to the movable parts may be considered, but the number of motors will increase in this way. For this reason, it is more efficient...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H1/14B60N2/06B60N2/16B60N2/22F16H1/06F16H25/16B60N2/90
CPCB60N2/0232F16H2063/3056F16H37/065F16H63/304B60N2/0296Y10T74/19279Y10T74/19251Y10T74/19051B60N2/02246F16H1/14B60N2/06B60N2/16F16H25/16
Inventor 重松良平中岛洁村上谦二藤井贵广饭野信次家龟宽
Owner NHK SPRING CO LTD
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