FR2499624A3 - CLAMP FOR ATTACHING AN EXHAUST DUCT TO AN EXHAUST PIPE OF A VEHICLE - Google Patents

Abstract

THE PRESENT INVENTION CONCERNS A PRESS FOR FIXING AN EXHAUST PIPE 4 TO AN EXHAUST PIPE 1 OF A VEHICLE. THE CLAMP 6 IS INTENDED TO HOLD THE EXHAUST PIPE 4 ON THE EXHAUST PIPE 1 IN ORDER TO EXHAUST THE EXHAUST GASES WHILE THE VEHICLE IS MOVING AND THE CLAMPING ELEMENT OF THE CLAMP 6 ON THE PIPE EXHAUST 1 MAY BE RELEASED BY PULLING ELEMENT 26 WHEN THE VEHICLE MOVES A CERTAIN DISTANCE. TO ALLOW AN INSTANT MANUAL RELEASE OF THE CLAMP IN A SIMPLE WAY, A RELEASE DEVICE 21 IS PROVIDED FOR RELEASING A CLAMP HANDLE 15 FROM A LOCKING POSITION ATTACHING THE CLAMP 6 TO THE EXHAUST PIPE 1 IN THE PURPOSE OF RELEASING THE CLAMP CLAMP 6 ON THE EXHAUST PIPE 1.

Description

The present invention relates to a clamp for fixing

  an exhaust pipe to an exhaust pipe of a

  where the clamp is intended to hold the exhaust duct on an exhaust pipe in order to evacuate the exhaust while the vehicle is moving

  and o the clamping element of the clamp on the exhaust pipe

  may be released by means of a traction device

  when the vehicle has moved a certain distance.

  In the known clamps of the technique used for the purpose mentioned above, spring devices are used to create the clamping force. It has been noted that the spring device must be designed and constructed to create relatively high fixation forces, but with increasing fixation force the damage can be serious if one is caught in the

  lever that extends the spring of the tongs, which may for example

  occur when trying to manually release

clamping element of the clamps.

  It is an object of the present invention to eliminate this problem and to provide a safe clamp for instantaneous manual release in a simple manner. This is achieved according to the present invention while a release device is provided for releasing a clamping handle from a locking position

  attaching the clamp to the exhaust pipe for the purpose of

  the clamping element of the clamp on the exhaust pipe

  ment. So that the invention can be better understood, reference is made to the following figures: Figure 1 is a side view schematically showing the clamp according to the invuntion in a closed position as well as in an open position; Figure 2 is a side view showing the clamp connected to the exhaust pipe and arranged on an escapement nozzle; and Fig. 3 is a perspective view showing

the clamp in the open position.

  In FIG. 1, the end of an exhaust pipe 1 of a vehicle (not shown) is shown, where the vehicle is intended to move in the direction of arrow A on a surface, for example an inspection workshop of a motor vehicle. In the workshop, evacuation rails 2 are provided, along which nozzles 3 can be moved in the direction of the arrow B. Each nozzle 3 comprises a flexible pipe 4 comprising a nozzle 5 of flexible tuvau and a clamp 6 to set the

  nozzle 5 of flexible pipe relative to the exhaust pipe

  1 in such a way that the exhaust gases are effectively

  cement sucked out via the flexible hose 4.

  The clamp 6 comprises a main element 7 forming a jaw 8 and a handle 9 and is provided with a mounting plate 10 (see FIG. 2) through which it is mounted on a pipe sleeve 11 to which the pipe

  hose 4 is connected on one side and the flexible hose nozzle

  ble 5 is fittings on the other side.

  An element is pivotally connected via an ankle

  12 to the main element 7 and constitutes the second jaw 13 of the clamp 6 to which the second handle 15

  of the clamp is pivotally connected via a pin 14.

  A lever 17 is pivotally connected via a pin 16 to the fist 15 and slides in a groove 18 (see Figure 3) in the handle 9. The handle 9 is provided with a threaded portion in which a set screw 19 is screwed

  and the purpose of this adjusting screw 19 (with a fixing nut

  20) is to provide an adjustable stop means for the lever 17 to vary the grip distance of the gripper.

  The above-described structure of the clamp is

  in such a way that, when the handles 9, 151 'are pressed towards each other, while the gripper grips the wall of the exhaust pipe 1, a certain resistance must be overcome until it reaches a neutral position for the force, so that the handles 9, 15 snap (in the direction of the arrow C) and remain in this position while the clamp is attached sufficiently rigidly to the exhaust pipe 1 to not not risk that the nozzle 5 of the flexible pipe is moved indelibly from its operating position when the vehicle is - 3-

still or moves.

  The clip 6 can be released with the thumb

  down (arrow D) the front part of a

  releasing means 21 of the handle which is pivotally connected through a peg 22 to the handle 15 and thus moves the front portion 23 of the lever 17 in the direction of the arrow D, causing the handle 15 moves in the opposite direction (arrow E) so that the clamp 6 is released.

exhaust pipe 1.

  With this construction there will be no problems in obtaining the desired tightening effect on the exhaust pipes 1 having various wall thicknesses and in FIG. 1 the clamp is shown in a position that firmly holds the wall of the pipe. In order to maintain the good tightening effect while ensuring that the clamp 6 and thus the hose 4 with the associated parts, is automatically released when the vehicle leaves the area with the discharge device 2, the part 7 of the clamp 6 is provided, via a pin 24, with a device 25

  release of the serage effect. to a swivel-

  with similarities to a ratchet. The clamping effect release device 25 has on one side of the

  ankle 24 a traction device26 which passes to the in-

  inside the flexible pipe 4 towards the nozzle 3 and has a

  length to prevent the hose 4 from extending

  be more sue the necessary. In other words, the provision

  tif of 26 (a wire or other suitable means)

  is as long and as short as the hose 4.

  The traction device 26 also has a length such that it allows the movement of the vehicle without risk that the clamp 6 will be released until the vehicle has

  reaches a position at which the clamp 6 will be released.

  As the vehicle moves to this position, the trolley device 26 is lengthened more and more.

  when it reaches this position, the release

  25 will be pivoted in the direction of the arrows F and G, which means that the release device -4 will press the lever 17 in the direction of the arrow H and thus the handle 15 in the direction of the arrow E. handle 15 in turn will rotate the jaw 13 in the direction of the arrow K, so that the distance between the jaws 8, 13 increase and the clamping effect

  of the clamp 6 on the exhaust pipe 1 is immediately

  released. The various parts of the clamp 6 are

  in the positions indicated by the

  dashes in Figure 1 and the clamp 6 is kept open

  by the spring 27 shown between points 28 and 29.

  The device described above and shown

  in the drawings may vary within the limits of the

  following cations. Thus, the discharge pipe may be of another type than a flexible pipe and may be a flexible pipe or other element connected to a winder instead of a nozzle on a discharge rail. The pulling device may be of a type other than that illustrated and may be disposed inside or wholly or partly outside the drain pipe. The construction of the grippers 6 may also vary, for example the lever 17 may have a stop portion 30 to bring the release device of the handle 21 to

his starting position.

  Of course, the clamp 6 is designed so that it does not release its clamping effect on the exhaust pipe 20 when it is stretched by forces that normally are created when the vehicle pulls on the hose 4 during its movement through

the work area.

  Of course various modifications may be made by those skilled in the art to the clamps which have just been described by way of non-limiting example.

  without departing from the scope of the invention.

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Claims (6)

claims:   1. Pinc (for attaching a discharge pipe (4) to an exhaust pipe (1) of a vehicle o.the clip (6) is provided to hold the exhaust pipe on the exhaust pipe in the purpose of evacuating the exhaust gases as the vehicle moves and the effect of clamping the clamps on the exhaust pipe can be released by a tractor device (26) when the vehicle has moved a distance, characterized in that a manual release isrosief (21) is provided for releasing a crimping handle (15) from a locking position securing the clamp (6) to the exhaust pipe (1) in the purpose of releasing the clamping effect of the clamp on the pipe exhaust.   2. Clip according to claim 1, characterized in that the release device (21) cooperates with an adjustment device (18, 19, 20) to adjust the force of 1 clamping effect of the clamp.   Gripper according to Claim 2, characterized in that the adjustment device (18, 19, 20) for adjusting the force of the clamping effect of the clamp (6) comprises an adjusting element (19, 20) mounted on a handle (9)   4. Pincc according to any one of the claims   1 to 3, characterized in that a spring (27) is provided for opening the clamp (6) or holding the clamp open for allow serraqe with it.   Gripper according to Claim 4, characterized in that the spring (27) cooperates with an anchor (24).   forming part of the clamping device (26).   6. Clip according to any one of the claims   1 to 5, characterized in that the elements thereof are   arranged outside the exhaust pipe (4) with the exception   elements (8,25) of which one (8) is intended to be   in the exhaust pipe (1) and the other (25) is   provided to cooperate with the pulling device (26).