FR2786174A1 - Shock and vibration damping stirrup has spring-loaded top pivot and articulated links between side branches and sole plate - Google Patents

Abstract

The stirrup, for use in horse-riding, has a compression chamber (10) at the top containing a spring-loaded pivot (3) with a friction washer (12) and nut (13) on one end and a stirrup leather ring (1) on the other. In addition, the side branches (7) of the stirrup are connected to its sole plate (8) by articulated links (14). A variant of the design has the compression chamber inside a detachable and adjustable bush.

Description

-1- The ergonomic stirrup is undoubtedly one of the most important

  innovations of this end of century brought to the world of riding Thanks to the combination of three systems. (rotation of the stirrup passage axis, shock absorber between the stirrup passage axis and the stirrup body, and the articulated junction), the ergonomic stirrup will bring about a revolution in riding

  technique which will equitably benefit the rider and his mount.

  Until then, the vibrations and shocks due to the different gaits (crossing obstacles, kicks, deviations, ...) were absorbed by the rider's ankles and knees, eventually causing pain or heaviness in the joints, similarly that they had a direct impact on the horse's shoulders and back by the

  bias of the stirrups and the saddle.

  In case of imbalance or loss of the stirrup, it was very difficult to put your foot back in the stirrup because it had made a quarter turn due to the twist of the stirrup belt. <? From now on, these drawbacks will be largely eliminated by the ergonomic stirrups. These systems allow the rider to always have good contact between his foot and the stirrup sole. Very relaxing during long hikes, and particularly effective in the event of imbalance towards the front (pace transition,

2c jump reception ...).

  The devices according to the invention make it possible to remedy these drawbacks. According to the first characteristics, they in fact comprise: * A caliper body (6) receiving the devices of the pivoting axis and of the damper (FIG 1 A) in a cavity (10) called the compression chamber. In the upper part, a 'hole (9) opens into this compression chamber forming a shoulder (17), and allows the passage and the guiding of the stirrup shaft (3), while the lower part remains open so to be able to assemble the shock absorber system / stirrup shaft. At the end of the stirrup body and on each side, there are the stirrup arms (7), the ends of which are pierced with a hole for receiving

  3c the articulated junction axis (14).

  * A rotary system (FIG 1 A) supporting the stirrup passage axis, preventing the twist of the stirrup strap at the level of the leg. Composed of an axis of -2- support (3) for stirrup passage (1) rotatable, which pivots 360 ', whose shoulder (2) rests on a friction washer (5). This stirrup tree axis pivoting in the caliper body (6) through a centering hole (9)! guidance. The axis (3) moves vertically inside the compression spring (11), terminated by a friction washer (12) blocked by the compression spring (11). At the end of the stirrup shaft (3) is a thread (4) the height of the lug safety nut (13) blocking the assembly. This safety nut (13) centers the sliding movable part inside the compression chamber (10). Her

  dimension must be adjusted precisely to slide just.

  * A damping system (FIG 1 A) sliding inside the compression chamber (10), allows the absorption of shocks and vibrations, composed of a compression spring (11) having few turns, of length at rest greater than the height of the compression chamber (10) and calibrated according to the half weight of the rider, blocked between the upper part by a shoulder (17), and at the bottom by a friction washer (12) of greater internal diameter to the axis diameter

  stirrup (3), all blocked by a round lug nut (13) on the thread (4).

  These last 3 elements sliding inside the compression chamber (10) must imperatively be of an outside diameter less than the diameter of the

compression chamber (10).

  * An oscillating articulated junction (FiG 1 B) connecting the stirrup branch (7) to the tab (8a) of the stirrup sole (8) allowing it to always be in good contact with the foot of the rider. It consists of a fastener with two fixed parallel side by side axes (14), the upper axis of which passes through the stirrup branch (7) and the lower axis, into the tab (8a) of the sole (8). , closed by a flange

  "(15) and blocked by a clip (16).

  According to specific embodiments: - The compression chamber (10) receiving the damper / rotation mechanism, can be in an independent interchangeable cylindrical barrel (FIG 3

  Exhibit C). positioned in the caliper body (6).

  So - The barrel (C) can have two diametrically opposite vertical slots, one opening at the bottom (FIG 5) and the other not (FIG 4) for very precise adjustment of the compression spring. These slots also allow the air contained in the compression chamber to escape more or less quickly thus playing 3-

  role of relaxation retarder during movement of the stirrup shaft (3).

  - The caliper body (6) can be drilled (19) right through to receive the barrel

removable (FIG 3 C).

  - The caliper body may have a hole (18) closed at the bottom (FIG 7) in order to prevent impurities from entering the damping mechanism of the removable barrel. - The caliper body may have a vertical slot opening into the compression chamber (10), to precisely adjust the travel of the compression spring. - The caliper body (6) can, to fix the barrel (C), have two diametrically opposed clamping screws (21) (FIG 6), - The caliper body (6) can, to fix the barrel ( C), have four fixing screws located below (FIG 7) - The stirrup shaft (1) can have the stirrup shaft (3) threaded on 2/3 of its height (FIG 8) and receive a notched cylindrical nut on the edge for blocking the compression spring (11) - The stirrup shaft (1) axis can have the stirrup shaft (3) pierced with vertically spaced holes ( FIG 9) to receive a pin locking pin of the compression spring (11) - A plug can be installed at the end of the compression chamber (10) which has remained 2 o open to prevent impurities from entering the mechanism

damper / rotation.

  - A compressible elastic material or any other compressible product may

  replace the compression spring (11).

  - The oscillating articulated junction (FIG 1 B) may consist of a central flange S receiving the two close parallel axes (FIG 11), inserted in the grooves made at the end of the stirrup branches (7) and the sole tabs stirrup (8a), allowing greater guiding precision between the stirrup and its sole. The accompanying drawings illustrate the invention _SQ 1/5 shows in section the devices of the invention of the ergonomic stirrup mounted at the top part A of the damper / rotation, and at B, the articulated junction.

  2/5 shows in section the devices of the invention before mounting.

-4 -

  3/5 shows in section a variant with barrel (C) before mounting.

  415 represents the different barrels (FIG 4 and 5) and their methods of attachment to the

caliper body (FIG 6 and 7).

  / 5 represents the variants of the stirrup passage axis FIG 8 and FIG 9 as well as the articulated junction in exploded view in its two versions FIG 10 and for the

variant FIG 11.

  With reference to these drawings, the device comprises a caliper body (6) inserting the shock / rotation systems (FIG 1 A) and an articulated junction (FIG 1 B). I O By way of nonlimiting examples, and for a good understanding, the dimensions indicated will be those of production of the various prototypes machined and assembled. The caliper body has a bore (10) said O i6mm compression chamber not opening upwards in order to obtain a shoulder (17) for retaining the compression spring (11). This shoulder (17) is pierced with a hole

  (9) at O 8.2mm to let slide the stirrup shaft (3) from O 8mm.

  This stirrup body is extended on each side of curved branches (7) drilled in each end of a hole (3.5 mm O) for the passage of the junction axis

articulated 14 (at O 3.2mm).

  The rotation and damper system is made with the same elements. Namely, a stirrup shaft (1) with shoulder (2) surmounting a stirrup shaft (3) (O 8mm) finished in its lower part, with a thread (4) of smaller diameter compared to the axis (3) (O 6mm) forming a shoulder. This part fitted with a friction washer (5) (O inside 8.2mm and O outside 28mm) used ú. at the correct pivoting of the axis, is introduced at the top of the caliper body (6) in a hole (9) of O 8.Smm then opens into a compression chamber (10) O 16mm intended to receive the system sliding shock absorber, composed of a compression spring (11) bearing against the shoulder (17), a friction washer (12) O 8.2 inside and O 15.9mm outside, all locked 3Cs by a safety nut with lugs (13) O 15.9mm outside on the thread (4). These last 3 elements sliding inside the compression chamber (10)

  must imperatively have an outside diameter smaller than the diameter of the bore (10).

  -5- The articulated oscillating junction (FIG lB) connecting the leg of air (7) to the tab (Sa) of the stirrup sole (8) is constituted by an attachment to two fixed axes side by side parallel (14 ) O 3.2mm, the upper axis of which passes through the hole O 3 5mm at the end of the stirrup branch (7), and the lower axis through the hole drilled in the tab (8a) of the stirrup sole ( 8), closed by a flange (15) and blocked by a clip (16). In the embodiment according to FIG 6, the stirrup body (6) is pierced right through by a hole of O 24mm to receive the barrel (FIG 4 C) and has

  2 fixing screws (21) tightening the barrel in the circular groove (20).

  In the embodiment according to FIG 7, the stirrup body (6) is bored from above a hole of O 24mm but does not open out at the bottom in order to fix the

  barrel (FIG 5) of 4 screws (22) penetrating from below the caliper body (6).

  In the embodiment according to FIG 4 and FIG 5 two vertical slots, one I = 2mm, h = 20mm opens at the bottom and the other diametrically opposite l = 2mm, b h = 16mm does not open at the bottom; this to keep all the rigidity at the

compression chamber (11).

  In the embodiment according to FIG 8, the stirrup shaft (3) can be threaded

until 2/3.

  In the embodiment according to FIG 9, the stirrup shaft (3) may not be threaded and only have holes drilled at regular intervals for the

  passage of a pin axis (not shown).

  According to a variant not shown, the stirrup shaft (3) may include all

fixing variants.

  In the embodiment according to FIG 11, the articulated junction can be 2S consisting of a flange (b) (thickness 1.9mm) (between axis 10Omm) (O of each hole 3.2mm), inserted in the grooves at the end of stirrup arms (7a) (thickness 2mm) for its upper part, fixed by a pin (7a) matted to the stirrup branch, and for its lower part, connected to the tab (8a) of the stirrup sole (8), by

an axis (7a ') stamped on the lug.

  3C According to a variant not shown, a plug comes into low closure of the compression chamber (10) when the latter clears on the underside

of the caliper body (6).

- 6 - 2786174

  - 6 - According to a variant not shown, the compression spring (11) can be

  replaced by any other compressible material.

7 2786174

Claims (10)

  1) Device for absorbing shock and vibration with the best position of the feet between the rider and the horse, characterized in that it comprises: * A stirrup body (6) receiving the devices of the pivoting axis and d 'damper (FIG 1 A) in a cavity (10) said compression chamber. In the upper part, a hole (9) opens into this compression chamber forming a shoulder (17), and allows the passage and the guiding of the stirrup shaft (3), while the lower part remains open in order to ability to assemble shock absorber system / stirrup shaft. At the end of the stirrup body and on each side, there are the stirrup arms (7), the ends of which are pierced with a hole for receiving The articulated junction axis (14).   * A rotary system (FIG 1 A) supporting the stirrup passage axis. Composed of a support shaft (3) for the passage of a stirrup stirrup (1) which rotates 360, the shoulder (2) of which rests on a friction washer (5). This stirrup pin axis pivoting in the stirrup body (6) through a hole (9) for centering / guiding. The axis (3) t: evolves vertically inside the compression spring (11), terminated by a friction washer (12) blocked by the compression spring (11). At the end of the stirrup shaft (3) is a thread (4) the height of the lug safety nut (13) blocking the assembly. This safety nut (13) centers the sliding movable part inside the compression chamber (10). Her   o dimension must be adjusted precisely to slide just.   * A damping system (FIG 1 A) sliding inside the compression chamber (10), allows the absorption of shocks and vibrations, composed of a compression spring (11) having few turns, of length at rest greater than the height of the compression chamber (10) and calibrated according to the half weight of the 2 rider, blocked between the upper part by a shoulder (17), and below by a friction washer (12) of diameter interior greater than the axis diameter   stirrup (3), all blocked by a round lug nut (13) on the thread (4).   These last 3 elements sliding inside the compression chamber (10) must imperatively be of an outside diameter less than the diameter of the 2 compression chamber (10).   * An oscillating articulated junction (FIG 1 B) connecting the stirrup branch (7) to the lug -8- (8a) of the stirrup sole (8) allowing the latter to be always in good contact with the rider's foot. It consists of a fastener with two fixed parallel side by side axes (14), the upper axis of which passes through the stirrup branch (7) and the lower axis, into the tab (8a) of the sole (8). , closed by a flange (15) and blocked by a clip (16).   2) Device according to claim 1 characterized in that the compression chamber (10) receiving the damper / rotation mechanism, can be in an independent interchangeable cylindrical barrel (FIG 3 piece C) positioning in the caliper body (6).   3) Device according to claim 2 characterized in that the barrel (C) may have two diametrically opposite vertical slots, one opening at the bottom (FIG 5) the other step (FIG 4) to effect a very precise adjustment of the spring compression. These slots also allow the air contained in the compression zone to escape more or less quickly thus playing the role of   deceleration retarder during movement of the stirrup shaft (3).   4) Device according to claim 2 characterized in that the caliper body (6) can be pierced (19) right through (FIG 6) to receive the removable barrel (FIG 3C). zo 5) Device according to claim 4 characterized in that the caliper body may have a hole (18) closed from below (FIG 7) in order to prevent impurities from entering   in the damping mechanism of the removable barrel.   6) Device according to any one of the preceding claims, characterized   in that the stirrup body may have a vertical slot opening into the compression chamber (10), for precisely adjusting the movement of the compression spring.   7) Device according to claim 4 characterized in that the caliper body (6) can, to fix the barrel (C), have two diametrically opposite clamping screws (21) (FIG 6), 3o 8) Device according to the claim 5 characterized in that the caliper body (6) can have four fixing screws (22) located below to fix the barrel (C) (FIG 7) 9-   9) Device according to any one of the preceding claims, characterized   in that the stirrup passage axis (1) can have the stirrup axis (3) threaded on 2/3 of its height (FIG 8) and receive a notched cylindrical nut on the edge for blocking compression spring (11)   ) Device according to one of the preceding claims, characterized in that   that the stirrup passage axis (1) can have the stirrup axis (3) pierced with vertically spaced holes (FIG 9) to receive a pin locking pin of the compression spring (11)   11) Device according to one of the preceding claims characterized in that a   iO plug can be installed at the end of the compression chamber (10) which remains open to prevent impurities from entering the mechanism damper / rotation.   12) Device according to one of the preceding claims, characterized in that   that a compressible elastic material or any other compressible product can   l5 replace the compression spring (11).   13) Device according to any one of the preceding claims, characterized   in that the oscillating articulated junction can consist of a central flange receiving the two close parallel axes (FIG 11), inserted in the grooves formed at the end of the stirrup branches (7) and the stirrup sole tabs ( 8a),   2o allowing greater precision in guiding between the stirrup and its sole.