JPH02218380A - Device for winding tension cable - Google Patents

Abstract

PURPOSE: To make easy winding and returning of a cable by rotating operation of a handle, by providing a combining means of two disks so that one disk and another disk are in specified relative angular positions each other when the one disk is rotated in winding or returning direction. CONSTITUTION: A disk 5 is provided with pins 38 and 39 which engage with arc shape slots 36 and 37 of the other disk 4. When the disks 4 and 5 are rotated in a winding direction, a sprocket means 32 lifts a flank 35 and ratchet tooth 34 so as not to disturb the rotation of the both disks, while when the disk 4 is rotated in a returning direction, the ratchet tooth 34 is lifted from the sprocket means 32 of a pallet 10 of the other disk 5 and the engagement is released and the other disk 5 rotates together and the pallet 10 is designed to jump from the engagement with the sprocket means 32 to a connection with the succeeding sprocket. By the above composition, when a handle 3 of the other disk 4 is rotated in the winding direction, the cable can be easily winded, and if it is rotated by a small angle to the returning direction, the lock condition is easily released.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a tension cable winding device used in various fields for winding and unwinding a cable under tension.

[Conventional technology]

One particular field of application for such winding devices is ski boots. In ski boots, tensioning of the partial pressure plate or flap of the overlap boot is
Cables are used to close the covers of shoes that are worn from behind. In addition, the cable is passed over a plate similar to a pressure dividing plate to act on the heel,
Cables are also used for various adjustment devices, such as those that adjust to the heel.

[Problem to be solved by the invention]

The problem of the present invention is to wind the cable (or rope) as described above in a certain direction and lock it in the wound state by simply turning the handle, and to unwind it by turning the handle in the opposite direction. It is an object of the present invention to provide a convenient tension cable winding device capable of unwinding a cable (or rope).

[Means to solve the problem]

The present invention can be summarized as follows. Common axis (7
), two sprocket discs (4, 5) (
Hereinafter, it will simply be referred to as a "disc." ) and cooperates with a spring-loaded pawl (10) having ratchet teeth (34) and flanks (35). The ratchet teeth (34) engage corresponding sprocket means (31) on one disc (4), and the flanks (35) engage corresponding sprocket means (32) on the other disc (5). engage with. The spring (6) is 2
The spring (9) provides a force to rotate the two discs (4, 5) in opposite directions, and the spring (9) causes the pawl (lO) to rotate the discs (4, 5) in opposite directions.
5) provides a force for engagement with the sprocket means of step 5);

The other disc (5) is provided with pins (38, 39) that engage with the arcuate slots (36, 37) of the one disc (4). The sprocket means of both discs (4, 5) are
4, 5) in the winding direction, the flank (35) and ratchet teeth (34) are lifted so as not to impede the rotation of both discs, and at the same time one of the discs (4) is unwound. When turning in the direction, the other disc (5) is locked.
The ratchet teeth (34) of the pawl (10) are pushed up and out of engagement from the sprocket means (32) of the other disc (
5) so that the pawl (10) can be moved from engagement with one sprocket (teeth) of the sprocket means (32) to engagement with a subsequent sprocket.

[Effect]

With the above configuration, the cable can be easily wound up by turning the handle (3) attached to one disc (4) in the winding direction, and the cable can be locked by turning it by a small angle in the unwinding direction. is easily released, and the handle (
3) is further turned in the unwinding direction, the dual-purpose machine is returned to its initial relative angular position by the spring and locked again by the ratchet means.

〔Example〕

Hereinafter, the present invention will be specifically explained with reference to the drawings.

Fig. 1 is a plan view showing a specific example of the present invention with the casing cover removed; Fig. 2 is a sectional view taken along the line ■-■ in Fig. 1;
FIG. 3 is a sectional view taken along the line ■-■ in FIG. 1.

In these figures (1) is a casing that is covered with a cover (2). Insert the screw (not shown) into the screw hole (23
), the casing (1) and cover (
2) Combine. The casing (1) and the cover (2) form a cavity (25) in which the two sprocket discs (4), (5) are rotatably mounted on a common shaft (7). The common shaft (7) also has a handle (3) rotatably mounted on the cover (2). The common shaft (7) is rotatably attached to the casing (1) and has a shim (
It is firmly held by the thickness adjustment plate (8) and flange (26). The center recess (27) inside the disc (4) and the disc (5)
) A coil spring (6) is provided in the space formed by the recess (29). Both free ends (6A) of coil spring (6)
, (6B) are the recesses (27) of the disk (4), respectively.
or the recess (2) of the disc (5) forming an extension of the recess (27).
(9) extending substantially tangentially from (28A), (2
8B). Therefore, the coil spring (6) acts as a common spring that biases the two disks (4), (5) to hold the dual-purpose machine (4), (5) in a predetermined relative angular position. Responsible for a part of

On the side opposite the recess (27) of the sprocket disc (4), there are holes (3) diametrically opposed to each other and parallel to the common axis (7).
0) and insert it into the corresponding hole (15) inside the handle (3). Therefore, when the handle (3) is turned, the disc (4) rotates together with the rotation of the handle (3). A sprocket means (sprocket) having sawtooth-like teeth (sprockets) on the circumference of the dual-purpose aircraft (4) and (5), respectively.
31) and (32), and a pawl (1) that engages with these.
0) is attached to the pin (11) supported by the casing (1) and the cover (2), and the coil spring (9) biases the pawl (10) in the direction of pressing it against the dual-purpose machine (provides a bias); The pawl (10) has ratchet teeth (34) that mesh with the sprocket means (32) of the disc (5) and flanks (35) that cooperate with the sprocket means (31) of the disc (4). ). In Figure 1, a part of the disc (4) is removed and the discs (5) are engaged with each other.
sprocket means (32) and ratchet teeth (34) are visible.

The sprocket disc (4) has two diametrically opposed arcuate slots (36), (37) with the same radius of curvature.
), which is engaged by two pins (3B), (39) which protrude from the inside of the sprocket circle Fi, (5) parallel to the common axis (7) and are also diametrically opposed.

The disk (5) accommodates the cable (13).
It is constructed integrally with a drum (cylindrical container), and as shown in FIG. 2, a groove (40) into which a wound cable (13) is inserted is provided on its circumference. The inner end of the cable (13) is connected to a corresponding cavity (42) by a nipple fitting (41).
Store it in. As shown in broken lines in FIG. 1, a radial groove (43) is provided on the inside of the sprocket disc (5) leading into the cavity (42). This groove is necessary for the insertion of the nipple fitting (41).

The cable (13) is inserted into the casing (1) through the hole (44) into which the bushing (12) (preferably made of metal) is inserted, while being wrapped in the protective tube (I4).

The tension cable winding device described above operates as follows.

When the handle (3) is turned in the winding direction (in this case, in the direction of arrow A), the sprocket disc (
4) goes together. On the other hand, the sprocket disc (5) is
This rotational movement is joined by pins (38), (39) which abut the rear ends of the arcuate slots (36), (37).

In the movement in the winding direction, the pawl (10)
).

(5) is lifted by and does not engage with the sprocket means (31), (32). When the handle (3) is loosened, the coil spring (6) will open the arc-shaped slot (36).
, (37), the dual-purpose machines (4) and (5) rotate, and the dual-purpose machine rotates depending on the length of the pawl (10) and (17) ratchet teeth (
34) is locked in an initial relative angular position meshing with one sprocket of the sprocket means (32) of the disc (5). This prevents the sprocket disk from rotating backwards in the direction opposite to arrow A. At this time, the pawl (
1o) such that the flank (35) engages one sprocket of the sprocket means (31) of the disc (4);
It constitutes a sprocket means (31). That is, when turning the handle (3) counterclockwise, i.e. in the direction opposite to arrow A, each sprocket of the sprocket means (31) displaces the pawl (10) via the flank (35) by the force of the coil spring (9). The ratchet tooth (34) is removed from the sprocket means (32) of the disk (5) by rotating in the opposite direction of the arrow A while pushing up against the pressure, and the disk (5) is free to rotate. In this way, the pawl (10) can be moved to the flank (35
) until the pawl (lO) disengages the l sprocket of the sprocket means (31) and engages the next sprocket. The cable (13)
is rewound. Here, the arcuate slot (36),
(37) is such that when the flank (35) passes over one sprocket of the sprocket means (31) and engages the next sprocket, the ratchet tooth (34) of the pawl (10) is just above the sprocket means (32). Set apart from one sprocket to engage the following sprocket.

In the example shown, the casing (1) has three mounting holes (
45), and the device is attached to a part such as a shell or collar of a ski boot using screws or rivets.

The present invention is capable of various modifications and changes within the scope of the claims. For example, for winding both ends of one tension cable, the sprocket disc (5)
Two grooves (40) may be provided on the circumference of the cable to allow winding and unwinding of the two cables. In addition, it is possible to wind up and unwind two or more ropes or cables.
It is also possible to provide several sprocket discs connected to one another.

Furthermore, it is also possible to provide a plurality of pawls (lO) or ratchet means of different construction to effect a winding action similar to that described above. It is also possible to choose the design of the sprocket of the disc (4) together with the flank (35) of the pawl (10) differently from the example described above. In the above description, the disc (5) and the cable drum are integrally constructed, but the disc (5) and the cable drum may be combined so as not to rotate with each other.

〔Effect of the invention〕

According to the invention, winding of the tensioned cable.

Unwinding can be easily done by rotating the handle, and even when the handle is loosened during winding and unwinding, the cable is held in the current state and does not rotate in the opposite direction, making it suitable for use in ski boots, etc. be.

[Brief explanation of the drawing]

Fig. 1 is a plan view showing a specific example of the present invention with the casing cover removed; Fig. 2 is a sectional view taken along the line ■-■ in Fig. 1;
FIG. 3 is a sectional view taken along the line ■-■ in FIG. 1. (1)...Casing, (3)...Handle,
(4)...- side disc, (5)...other disc, (5,40)...cable drum, (6)...
...Second spring, (7)...Common shaft, (9
)...First spring, (10)... Pawl (ratchet means), (13)... Cable, (
31) Sprocket means for one disc (4),
(32) Sprocket means of the other disc (5), (34) Ratchet teeth, (35) Old flank, (36, 37) Old arcuate slot, (38, 39
)····pin.

Claims (1)

[Claims] 1. A tension cable winding device used for ski boots, etc., comprising: a) a casing in which at least two disks are coaxially attached to a common shaft in a predetermined coupling relationship; b) the above. c) one of the discs is fixedly coupled to the handle; c) the other disc is fixedly coupled to the cable drum, either integrally or relative to each other; and d) the other disc is fixedly coupled to the handle; When the other disc rotates in the winding direction, it does not engage with the engaging means, and when the other disc rotates in the unwinding direction, it is pushed up by the engaging means and ratchet means for releasably locking said other disc so as to disengage it from engagement with the other disc, e) at which angular position when said one disc is rotated in the winding or unwinding direction; (f) when the handle is turned in the winding or unwinding direction; ,
A tension cable winding device characterized in that the cable can be wound up or unwinded without being hindered by the locking action of the ratchet means. 2. Each of the two discs is provided with a sprocket means, and the ratchet means is constructed as a pawl having ratchet teeth and a flank, and the pawl is biased by a first spring, and the ratchet teeth are attached to the other disc. is engaged with a sprocket of the sprocket means to prevent rotation of the other disc in the unwinding direction, and when the one disc is rotated in the unwinding direction, the sprocket of the one disc in contact with the flank is engaged with a sprocket of the sprocket means of the one of the disc sprockets acts on the flank to push up the pawl with the ratchet teeth against the force of the spring, disengaging the other disc sprocket means from the sprocket; 2. The apparatus according to claim 1, wherein the other disc is moved in the unwinding direction by the one disc. 3. One of the two discs is provided with at least one arc-shaped slot having a radius of curvature centered on the rotation axis of the disc, and the other disc is provided with the same number of pins as the slots, When this is engaged with one of the slots and the one disk is rotated in the winding direction, the pin is engaged with one end of the slot to rotate the two disks together. A device according to claim 1. 4. The two discs are acted upon by a common second spring, which spring, depending on the length of the slot,
ratchet teeth of said pawl mesh with one sprocket of said other disc sprocket means, and said pawl engages said first spring through said flank by one sprocket of said one disc sprocket means; 2 above in a relative position where it cannot be pushed up against the force.
Claim 2 or 3, characterized in that two discs are rotated.
The device described in.