FR2619781A1 - DEVICE FOR ATTACHING A SHOE TO A BICYCLE PEDAL AND PEDAL EQUIPPED WITH SAID DEVICE - Google Patents

Abstract

The invention relates to bicycle pedals. The body 2 of the pedal is provided with a plate 4 articulated on a front vertical axis 5. A spring 10 attracts the plate to a closed position in which it defines with the body a housing in which a button fixed to the sole is blocked. of the shoe. By rotating the shoe around the vertical axis, the plate is placed in the open position, in which it is retained by a stop, the button then being able to be released towards the rear. The stop is automatically deactivated by inserting the coupling element into its housing. Main applications: toe clips for bicycles.

Description

The present invention relates to devices

  attaching a shoe to a bicycle pedal.

  clette, of the type which comprises: a coupling element attached to the sole of the shoe; and

  means for retaining the bridging element

  most, which are carried by the body of the pedal.

  The object of the invention is to produce a device

  of the type mentioned above which has a structure

  simple and reliable, which ensures the safety of

  of the shoe on the pedal and that allows a cy-

  cliste to easily perform the blocking operations and

  release of the shoe on the pedal.

  To achieve this goal, the object of the invention

  consists of a fixing device whose characteristic

  main feature is that the retaining means comprises: a retaining element articulated on the body of the pedal to rotate about a vertical axis located at

  forward, and who can move between a closed position

  in which he defines with the body of the peda-

  the housing in which the coupling element is housed and locked and an open position - in which

  it allows the coupling element to be inserted into the housing.

  from the rear of this dwelling, by a movement

  longitudinal direction, or to disengage the

  the coupling of his dwelling by a

  rigged in the opposite direction, elastic means interposed between the body

  of the pedal and the retainer to tend to

  push this element towards its closed position;

  means of arrest to maintain the

  restraint in its open position when it

  dyes this position from the closed position, and

  means for disabling the means of ar-

  to bring about the return of the element

  in its closed position when the element of ac-

2 2619781

  coupling is inserted in its housing.

  Indeed, as soon as the cyclist places his

  on the pedal, inserting in its housing the ele-

  the sole of the boot, the retainer returns to the closed position under

  the action of elastic means, thus blocking solid-

  the shoe on the pedal. When the cyclist wants to release the shoe from the pedal, he simply has to rotate the shoe around the vertical axis so as to place the retainer in its position

  open, overcoming the action of the elastic means.

  When the open position is reached, the retainer remains locked in this position under the action

stop means.

  Another object of the invention is a training

  the bicycle using the device.

  Figures in the attached drawing, given only

  by way of example, make it clear how

  vention can be realized. In these drawings, FIG. 1 is a perspective plan view

  of a pedal according to the invention, with the retaining element

  naked in the open position; Figure 2 is a section taken along the line II-II of Figure 1; Figure 3 is a section taken on the line III-III of Figure 1; Fig. 4 is a section taken along the line IV-IV of Fig. 1; Fig. 5 is a plan view of the pedal of Fig. 1, with the retainer in the closed position; Figure 6 is a section taken along the line VI-VI of Figure 5; and

  Figure 7 shows a variant of Figure 1.

  In Figures 1 to 6, a right bicycle pedal is generally designated 1 and comprises a body 2 which is rotatably mounted in a known manner,

3 2619781

  on a pedal shaft 3 having an end 3a which

  used to assemble it at the respective crank of the bicycle.

  clette. The body 2 of the pedal is provided with a retaining element 4 in the form of a plate which is articulated on the body 2 in order to be able to turn about a

  vertical axis 5 in its front part. In the case

  only by way of example in the drawings, this

  This articulation is achieved by the commitment of a

  depressed cylindrical tie 5a of the plate 4 in a cavity

  corresponding form 2a which is formed in the superstructure

  upper face of the body 2. A washer 6 made of a

  low friction material is interpolated

  between the bottom of the cavity and the plate 4. The

  Axial bling of the elements is provided by a screw 7 which is engaged with play in a hole formed in the base wall of the depressed portion 5a and is screwed into the body 2 of the pedal. The head of the screw 7 bears on the bottom wall of the part 5a, with the interposition of a

  washer 8 made of a material having a low coefficient of

friction.

  Below the plate 4, the body 2 of the

  dale has a cavity 9 which encloses a coil spring

  coldal 10 (see in particular Figures 1 to 3) whose ends are respectively assembled to the body 2 and to the plate 4. More particularly, one end of the coil spring 10 is attached to a fastening element 11 which is fixed under the plate 4 by means of a screw 12. The opposite end of the coil spring 10 is hooked to a bushing 13 which is mounted to slide in a hole 14 of the pedal body (FIG. 3) and whose position can be adjusted by means of of a screw 15, this

  which makes it possible to adjust the setting of the spring 10.

  The spring 10 urges the articulated plate 4 towards a closed position (shown in FIG. 5) in which it defines with the body 2 of the pedal a pocket-shaped housing in which is housed and

4 CI2619781

  blocks a retaining button 16 (Figure 6) attached to the seat

  17 of the cyclist's shoe.

  In particular, the loaement comprises two lateral cheeks 18, 19 carried respectively by the body 2 of the pedal and by the plate 4. The cheeks 18, 19 have vertical walls 18a, 19a which converge towards

  the front (in the direction of cycling).

  The walls 18a, 19a are extended at the top by

  horizontal kings 18b, l9b. which protrude one towards

  the other starting from the respective vertical walls.

  When the pedal is in the closed position

  shown in FIG. 9, the side cheeks 18, 19

  therefore the coupling button 16 to move

  transversely and vertically and to move

  longitudinally forward. The body 2 of the pedal com-

  additionally takes a wall 20 adjacent to the ar-

  of the pedal, which is located facing a part of the rear wall of the coupling knob 16 when the

  plate 4 is in its closed position, so as to prevent

  the button 16 to move longitudinally backwards. To make sure that the articulated movement

  plate 4 occurs without the plate being

  te of its plane, the body of the pedal has a rear wall provided with a groove 21 in which slides the

lower edge 4a of the plate 4.

  A cavity, indicated at 22, is formed in the body 2 of the pedal under the plate 4 and a rocker 23

  is mounted in this cavity. The rocker 23 is articulated

  24 at the body 2 of the pedal and at one end

  it has a ratchet or stop element 25 which is

  pushed upwards by a helical spring 26. When

  that the plate 4 reaches its open position (shown in Figure 1), the pawl 25 emerges from the cavity 22 and engages between the body of the pedal and the edge of the plate 4 which is provided with a notch 27 ( see Figure 4)

  in a suitable place. The upper surface of the

2619781

  25 has a cam-shaped portion 28 (FIG.

  2) which is attacked by the front edge of the button

  16 when it is inserted in its box.

  by a horizontal movement directed forward. The contact between the button 16 and the surface 28 causes the pawl 25 to go down into the cavity 22 and thus leaves the plate 4 to return to the closed position shown in FIG.

  FIG. 5, under the effect of the biasing of the spring 10.

  The end of rocker 23 which is the opposite

  ratchet 25 forms a tooth 29 which engages in an

  preinte 30 (FIG. 4) formed in the plate 4 when

  the latter reaches its closed position. This commitment

  is carried out under the effect of the pressure exerted on

  the tooth 29 by a helical spring 31 which is interpolated

  between the tooth and the bottom of the cavity 22.

  The pedal according to the invention works from the

following lesson: -

  We assume that the pedal is in its state or-

  green shown in Figure 1, wherein the plate 4 is retained by the ratchet 25. The cyclist can block his shoe on the pedal by inserting the button 16 in its housing by a horizontal movement directed forward. As soon as the front part of button 16 attacks the

  cam surface 28 of the pawl 25, the latter is repouss-

  down to leave the plate 4 free of

  return to the closed position as a result of the solicitation

  The pedal is thus placed in the state shown in FIG. 5, in which the button 16 bears on the plate 4 and is blocked against any vertical, transverse or longitudinal movement by

  the lateral cheeks 18, 19 and the rear wall 20.

  When the cyclist wants to clear his shoe

  of the pedal, he simply has to turn his shoe over-

  turn of the axis 5 overcoming the action of the spring 10

  to place the plate 4 in the open position

  shown in Figure 1. When this position was

  hue, the ratchet 25 rises up suddenly to block

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  the plate in the open position. The cyclist can then

  if to release his shoe by a longitudinal movement di-

  rearward, which allows button 16 to disengage

  ger of his home. The function of the tooth 29 is to ensure that the rotation of the plate 4 towards the open position can only occur by applying a force which exceeds a certain level. In practice,

  this ensures that it will not be possible to

  accidentally when dynamic pressures

  on the pedal while the bicycle is in motion.

tively.

  Figure 7 represents a variant that does not differ

  of the pedal described above only by the fact that the two lateral cheeks 18, 19 are both formed

in the retaining element 4.

  It goes without saying that various modifications and variations may be made by those skilled in the art to the device which has just been described by way of non-limiting example, in particular by substituting the equivalent technical means, without for that reason leaving the

framework of the invention.

7 2619781

Claims (8)

CLAIMS V E N D I C A T IO N S   1 - Device for attaching a shoe to a bicycle pedal, of the type comprising:   a coupling element (16) fixed to the sole   the boot (17), and means for retaining the boot member   (16), which are carried by the body (2) of the pe- dale,   characterized in that the retaining means comprises   take: - a retaining element (4) articulated on the   body (2) of the pedal to rotate about a vertical axis   tical (5) located at the front, and which can move between a closed position - in which it defines with the body (2) of the pedal a housing in which the element   coupling (16) is housed and locked -   - and an open position - in which it allows to insert the coupling element (16) in the housing, by the back of this housing, by a movement   longitudinal direction, or to disengage the   the coupling of his dwelling by means of a   rigged in the opposite direction, - resilient means (10) interposed between the body (2) of the pedal and the retaining element (4)   to push this element towards its closed position.   , - arresting means (25) intended to maintain   the holding element (4) in its open position when   that he reaches this position; and - means (28) for disabling   stopping means (25) and thereby   turn of the retaining element (4) to its closed position when the coupling element (16) is inserted into his dwelling.   2 - Device according to claim 1, characterized   characterized in that the housing is defined by two cheeks 8 2619781   forward-facing side members (18, 19) each of which comprises a vertical wall (18a, li8a) and an upper horizontal wall (18b, 19b) that protrudes   on the vertical wall towards the opposite cheek   at least one of the cheeks being carried by the retaining element (4), the housing being further defined by a rear wall (1) of the body (2) of the pedal which faces a portion of the rear surface of the coupling element (16) when it is blocked in its housing.   3 - Device according to claim 2, characterized   in that the two lateral cheeks (18, 19) are   carried by the retaining element (4).   4 - Device according to claim 2, characterized   in that one of the lateral cheeks (18, 19) is   by the retaining element (4), the other cheek being   by the body (2) of the pedal.   Device according to claim 2, characterized in that the retaining element comprises a body   (4) having the shape of a plate.   6 - Device according to claim 5 and   characterized in that elastic means are constituted   killed by a helical spring (10) located in a cavity   body (2) of the pedal, below the plate of   retained (4), and whose ends are anchored respectively   on the plate (4) and on the body (2) of the pedal. the.   7 - Device according to claim 1, characterized   in that means are provided to adjust the calibration of the elastic means.   8 - Device according to claim 5, characterized   characterized in that the coil spring (6) is assembled to the body (2) of the pedal by a connecting element   (13) whose position is adjustable.   9 - Device according to claim 5, characterized   in that the stopping means comprise an element   stopping device (25) carried by the body of the pedal,   below the retaining plate (4), and which is   elastically cited to a raised position, so that the stop member (25) is interposed between the body   (2) pedal and a side edge of the retaining plate.   (4) when the latter reaches the open position   you, thus holding this plate in this position.   Device according to claim 9, characterized   in that the stop element is mounted at the end   a rocker arm (23) which is hinged to the body (2) of the pedal and the opposite end of which forms a tooth (29) for engaging an impression (30) formed in the retaining plate ( 4) When the plate is in the closed position.