JPS6426658U - - Google Patents

Description

[Brief explanation of drawings]

FIG. 1 is a side view showing the recording paper winding device of the present invention, FIG. 2 is a front view showing the winding section, and FIG. 3 is an exploded view of the torsion clutch section. FIG. 4 shows another embodiment of the recording paper winding device of the present invention. 3... Intermittent drive gear, 4... Intermittent driven gear, 7... Transmission belt, 8... Winding transmission gear, 9... Winding transmission gear, 10... Torsion coil spring, 12... Winding pulley, 23... Winding eccentric cam, 24...Transmission belt, 2
5...Makitoriden Epuri.

Amendment April 21, 1986 The scope of claims for utility model registration is amended as follows.

[Claims for Utility Model Registration] An eccentric cam member that rotates in one direction and has a circular arc portion on its outer periphery and a tooth portion formed at a position longer than the center of the circular arc portion and the drive shaft; a take-up transmission pulley to which rotational force is intermittently transmitted; a take-up transmission gear supported coaxially with the take-up transmission pulley; and a take-up transmission gear suspended between the eccentric cam member and the take-up transmission pulley, a transmission belt that meshes with the tooth portion of the eccentric cam member to transmit the rotational force of the eccentric cam member to the take-up transmission gear via the take-up transmission pulley; and a transmission belt that meshes with the take-up transmission gear. a take-up gear for winding a predetermined amount of recording paper onto a take-up spool; and a coil spring member interposed between the take-up transmission pulley and the take-up transmission gear; When the transmission belt is rotationally driven by the teeth of the eccentric cam member, the coil spring member is deflected, and when the transmission belt is slipped by the arcuate portion of the eccentric cam member, A recording paper winding device characterized in that the deflection of the coil spring member is restored.

Claims (1)

[Claims for Utility Model Registration] (1) In a recording paper winding device, an intermittent drive member and an intermittent driven member arranged so as to be disengaged after being engaged with the intermittent drive member and operating at a certain angle. a winding transmission member that engages with the recording paper winding shaft; and a torsion spring that is provided such that one end engages with the intermittent driven member and the other end engages with the winding transmission member. 1. A recording paper winding device comprising: a member (a torsion coil spring); (2) A torsion spring member consisting of an intermittent driven member and a transmission member that engages with the driven member, and is provided such that one end engages with the transmission member and the other end engages with the winding transmission member. A recording paper winding device according to claim 1, characterized in that the recording paper winding device is constructed of a torsion coil spring). (3) The recording paper according to claim 1 of the utility model registration claim, characterized in that a friction transmission means is provided between the intermittent driving member and the intermittent driven member, so that at least a constant torque is transmitted between them. winding device. (4) A rotating odd-shaped cam eccentrically provided as an intermittent driving member, a belt as an intermittent driven member, and a belt pulley as a transmission member,
2. The recording paper winding device according to claim 1, wherein a high torque is transmitted to the transmission member at a certain rotation angle of the irregularly shaped cam, and a low torque is transmitted at a remaining angle to the transmission member.