JPH0537836U - Winding device for flexible covered electric wire - Google Patents

Abstract

(57) [Summary] [Purpose] To achieve continuous winding and unwinding of electric wires, and to use a disk-shaped pulley as a winding cylinder to achieve orderly winding of electric wires and a flat structure as a whole. . [Structure] An inner cylinder 3 with a cam is pivotally supported on a substrate 1 by a pivot 2, and an outer cylinder 5 having a cam groove 5a in which a roller 4 rolling on the outer peripheral surface of the inner cylinder 3 is fitted is fitted into the inner cylinder 3. To form a one-way clutch, and the winding pulley 7 of the flexible covered electric wire 6 is coaxially fitted to the outer cylinder 5 with its pivoting cylinder 7a, and this pulley 7 is always in the winding direction of the electric wire 6. A plurality of conductive rings 1 are provided that are wound around the trochanter 9 and that are wound concentrically on the surface of the pulley 7.
A conductive brush 11 slidably contacting 0 is fixed, and the inner cylinder 3
Of the brake lever 12 that makes elastic contact with the cam surface 3a of the control lever 12a protruding from the base plate 1 and braking the electric wire 6.
13 is provided.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a self-winding type winding device capable of continuously changing the payout length of a flexible covered electric wire used for a biostimulation conductor or the like by a low frequency pulse.

[0002]

[Prior Art]

 As a winding device of this type, for example, a device for a cuff hose of a sphygmomanometer has conventionally been disclosed in Japanese Utility Model Laid-Open No. 3-5404. This conventional technique is provided between a sphygmomanometer main body, a cuff wound around a part of a living body, the sphygmomanometer main body and the cuff, and supplies pressure fluid from a pressure fluid supply source to the inside of the cuff. A blood pressure monitor of the type having a cuff hose, wherein a coiler for winding the cuff hose is provided in the sphygmomanometer main body.

[0003]

[Problems to be solved by the device]

 In addition to the problem that the above-mentioned conventional technology can be used for a cuff hose, it cannot be used for winding a flexible electric wire that transmits and receives low-frequency pulses because it has no current collector.In addition, a ratchet gear is used as a one-way clutch. Since it is used, the hose's feeding noise is large and it is also a hook, and the feeding length is determined by the pinch dimension of the ratchet teeth, so only the intermittent intermittent dimension feeding can be performed, and continuous analog feeding cannot be done. Since the winding cylinder itself is drum-shaped, the hose becomes a messy winding, and there is a problem that the cuff hose or the like has a twisting tendency and cannot be flattened.

In order to eliminate the above-mentioned problems, the present invention realizes continuous winding and unwinding of electric wires by using an analog control type one-way clutch using a cam groove internal roller. By using a disk-shaped pulley as the winding cylinder, the purpose is to achieve orderly winding of the wire and to make it flat as a whole.

[0005]

[Means for Solving the Problems]

 The object of the present invention described above is to pivotally support an inner cylinder with a cam on a base plate by a pivot, and to insert an outer cylinder having a cam groove in which a roller rolling on the outer peripheral surface of the inner cylinder is fitted into the inner cylinder. A directional clutch is constructed, and a flexible covered electric wire winding pulley is coaxially fitted to the outer cylinder with its pivotal cylinder, and this pulley is always biased in the electric wire winding direction. A conductive brush that is slidably provided and that is in sliding contact with a plurality of conductive rings that are concentrically insulated from the surface of the pulley is fixed, and an operating lever of the braking rod that elastically contacts the cam surface of the inner cylinder is provided from the board. This can be achieved by projecting and providing a damper for braking the electric wire.

[0006]

[Action]

 When the electric wire is paid out from the pulley, the pulley rotates around both the inner and outer cylinders that make up the one-way clutch.

That is, when the pulley rotates, the roller in the cam groove of the outer cylinder squeezes in the width direction of the cam groove due to the rolling friction against the inner peripheral surface of the inner cylinder. The electric wire can be continuously paid out from the pulley while being wound around the outer cylinder peripheral surface while being drawn out from the rotator against the self-winding force.

If the pulling force of the electric wire is cut off at the end of feeding the desired length, the pulley tries to return to the winding direction of the electric wire by the self-winding force of the spiral spring in the rotator direction. Contrary to the above, since it rolls in the narrow direction of the cam groove, both the inner and outer cylinders are in a state of being joined by sandwiching the roller, and in advance, the outer cylinder and the pulley are connected by the braking rod that is in tight contact with the cam surface of the inner cylinder. And can keep braking.

Therefore, at this time, the electric wire, the conductive ring, and the conductive brush that have been fed can be used to send and receive an electric current or an electric signal, and when the use is finished, the braking lever is removed from the inner cylinder cam surface against the restoring force thereof. The pulley can rotate in the winding direction of the electric wire by the self-winding force of the spring of the mainspring together with the outer cylinder fitted to the pulley, and the electric wire can be easily wound up to the stopper by the braking action of the brake element. it can.

[0010]

【Example】

 Examples will be described with reference to the drawings. First, as shown in each of FIGS. 1 to 4, the basic structure of the present invention is such that a pivot 1 is erected on a base plate 1 made of an iron plate or the like by a wall plate 2a, and an inner cylinder 3 with a cam is attached to the pivot 2. After the state of FIG. 2, it is rotatably supported as shown in FIG.

As shown in FIGS. 5 and 6, an outer cylinder 5 having a cam groove 5a in which a roller 4 rollingly contacted with the outer peripheral surface of the inner cylinder 3 and its resilient spring 4a are fitted is fitted into the inner cylinder 3. Then, the unidirectional clutch as shown in FIGS. 5 and 6 is constructed.

Further, the winding pulley 7 of the flexible covered electric wire 6 is coaxially fitted to the outer cylinder 5 by its pivoting cylinder 7a as shown in FIGS. 2 and 3, and this pulley 7 is always connected to the electric wire 6. As shown in FIGS. 1 and 3, a spring spring 8 for urging in the winding direction is provided by being wound around a trochanter 9 which is pivotally supported on a substrate 1 by a pivot 9a.

Further, as shown in FIG. 7, on the surface of the pulley 7, a conductive brush 11 slidably contacting a plurality of conductive rings 10 concentrically insulated by an insulating disk 10a is held parallel to the substrate 1, for example. It is fixed to the inner surface of 1a as shown in FIG.

For example, as shown in FIG. 1, the cam surface 3a of the inner cylinder 3 is elastically contacted with a spring S so that the operating lever 12a is pivotally connected to a free end of a seesaw type braking rod 12 via a connecting piece 12b. The substrate 1 is projected as shown in FIGS.

Further, a brake element 13 composed of a combination of a unidirectional clutch pulley and a single pulley for braking the insertion force of the electric wire 6 is provided as shown in FIG. Configure a winding device.

In each drawing, reference numeral s denotes a tension spring, 14 all pivots, and 15 a connecting post also for preventing the electric wire 6 from unraveling, which also holds the plate member 1a in parallel with the substrate 1.

Reference numeral 16 is a guide bush for the electric wire 6, and 6a is a stopper expansion portion of the electric wire 6 for contacting the bush 16 to limit the winding amount of the electric wire 6 at a predetermined position. , 17 are stopper pins, n are locking members such as screws and nuts, and c is a space collar for preventing backlash.

The structure of the present invention is as described above, and its operation will be described below. First, the electric wire 6 is unwound from the pulley 7 by hand or the like, and the unwound force causes the pulley 7 to rotate in the direction indicated by the chain line arrow in Fig. 1 about both the inner and outer cylinders 3 and 5 forming the one-way clutch.

That is, the rotation of the pulley 7 causes the roller 4 in the cam groove 5a of the outer cylinder 5 to widen the cam groove 5a by rolling friction due to the rotation of the outer cylinder 5 in the direction of the arrow in FIG. 1 and 5, the inner and outer cylinders 3 and 5 rotate freely, and the main spring 8 is pulled out from the rotator 9 against its self-rolling force and the outer cylinder 5 is rotated. The electric wire 6 can be continuously paid out from the pulley 7 while being wound around the peripheral surface of the.

When the pulling force of the electric wire 6 is cut off when the electric wire 6 is fed out by a desired length, the pulley 7 is rotated in the winding direction of the electric wire 6 by the self-winding force of the winding spring 8 in the direction of the rotator 9. However, as shown in FIG. 6, the roller 4 rolls in the narrow direction of the cam groove 5a contrary to the above, so that the inner and outer cylinders 3 and 5 are connected with the roller 4 interposed therebetween. Preliminarily, the outer cylinder 5 and the pulley 7 can be maintained in a braking state by the brake element 12c of the braking rod 12 which is in elastic contact with the cam surface 3a of the inner cylinder 3 as shown in FIG.

Therefore, at this time, the electric wire 6 and the conductive ring 10 and the conductive brush 11 that have been fed out can send and receive an electric current and an electric signal, and when the use is completed, the control lever 12a is used to pull the control rod 12 as shown in FIG. By rotating in the direction shown by the arrow in the figure against the restoring force of the spring s and removing it from the cam surface 3a of the inner cylinder 3, the pulley 7 and the outer cylinder 5 fitted to this pulley 7 rotate together with the spring spring 8. The electric wire 6 is rotated in the winding direction by the self-winding force with respect to the child 9, and the electric wire 6 can be easily wound around the pulley 7 by the braking action of the pair of brake elements 13, 13 up to the stopper 6a.

[0022]

[Effect of the device]

 Since the present invention is configured as described above, it has the following effects. The rotation of the pulley 7 by the feeding force of the electric wire 6 causes the roller 4 in the cam groove 5a of the outer cylinder 5 to squeeze in the wide direction of the cam groove 5a due to the rolling friction caused by the rotation of the outer cylinder 5 with respect to the peripheral surface of the inner cylinder. The inner and outer cylinders 3 and 5 rotate freely, and the electric spring 6 is continuously paid out from the pulley 7 while being wound around the outer cylinder 5 while unwinding the mainspring 8 from the rotator 9 against its self-winding force. Therefore, there is a first effect that wiring is quiet, safe, convenient, and well-structured for use.

Further, when the pulling force of the electric wire 6 is cut off when the electric wire 6 is fed out by a desired length, the pulley 7 is rotated in the winding direction of the electric wire 6 by the self-winding force of the spiral spring 8 in the direction of the rotator 9. However, this time, both the inner and outer cylinders 3 and 5 are joined together with the roller 4 sandwiched between them, and the brake bar 12c of the brake rod 12 that is in tight contact with the cam surface 3a of the inner cylinder 3 is used. Since the outer cylinder 5 and the pulley 7 can be maintained in a braking state, the electric wire 6 and the conductive ring 10 and the conductive brush 11 that are easily and quickly fed out can exchange electric current and electric signals, so that the second position can be used. It also has an effect.

After use, the operating lever 12a rotates the braking rod 12 in the direction of the arrow in the figure against the restoring force of the pulling spring s to disengage it from the cam surface 3a of the inner cylinder 3. 7 together with the outer cylinder 5 fitted to this, rotates in the winding direction of the wire 6 by the self-winding force of the spring 8 of the spring 8 against the rotator 9, and the pulley 7 connects the wire 6 to its stopper 6a. The third effect is that there is no danger and no noise is produced because the braking action of 13,13 allows the coil to be wound up easily.

Further, by making the pulley 7 a disk-shaped grooved wheel, the pulley 7 can be made flat as a whole and the electric wire 6 is not twisted.

[Brief description of drawings]

FIG. 1 is a vertical sectional elevation view of an electric wire winding device of the present invention.

FIG. 2 is a vertical sectional side view of the central portion of the same apparatus in a disassembled state.

FIG. 3 is a vertical cross-sectional side view of the assembly of FIG.

FIG. 4 is a sectional view taken along the broken line in FIG.

FIG. 5 is an enlarged sectional view of a one-way clutch suitable for use in the present invention.

FIG. 6 is an enlarged sectional view showing a state different from that of FIG.

FIG. 7 is a perspective view showing a relationship between a conductive ring and a conductive brush.

FIG. 8 is a vertical sectional elevation view in a state different from that of FIG.

[Explanation of symbols]

 1 substrate 2 pivot 3 inner cylinder 3a cam surface 4 roller 5 outer cylinder 5a cam groove 6 covered wire 7 pulley 7a pivoting cylinder 8 spring spring 9 rotor 10 conductive ring 11 conductive brush 12 braking lever 12a operating lever 13 brake element

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Kazumasa Shibata 315-1 Minamihanajima-cho, Matsudo-shi, Chiba Prefecture 1 Japan Medex Co., Ltd.

Claims (1)

[Scope of utility model registration request] 1. An outer cylinder (5) having a cam groove (5a) in which a roller (4) rolling on the outer peripheral surface of the inner cylinder (3) is pivotally supported by a pivot shaft (2) on a base plate (1). To form a one-way clutch, and the winding pulley 7 of the flexible covered electric wire 6 is coaxially fitted to the outer cylinder 5 by its pivoting cylinder 7a, and this pulley 7 is always connected to the electric wire 6. A spiral spring 8 for urging in the winding direction is wound around the rotator 9, and a conductive brush 11 slidably contacting a plurality of conductive rings 10 concentrically arranged on the surface of the pulley 7 is fixed. Cylinder
A winding device for a flexible covered electric wire comprising an operating lever 12a of a braking rod 12 which is elastically contacted with a cam surface 3a of a protrusion 3 from the substrate 1 and a brake element 13 for braking the electric wire 6.