FR2717793A1 - Pallet stop for a ground transport vehicle, especially a forklift comprising two forks spaced apart from each other. - Google Patents

Abstract

a) Pallet stopper for a ground transport vehicle, in particular fork lift truck comprising two fork tines spaced apart from each other. b) The clamping device has two side parts (1, 2) pulled against each other by a spring and each part (1, 2) is designed to hook onto one of the teeth by a plate of tightening (3, 4). Traction is provided by a spring (10) housed in a telescopic tubular section (9). The side parts (1, 2) have a handle formed by a cutout (11, 12) in the clamping plate (3, 4) each provided with a hooking member (13) for the spring (10).

Description

"Pallet stop for a ground transport vehicle, in particular

  forklift truck with two forked teeth separated from each other "

  The present invention relates to a stopper

  lette for transport vehicle on the ground, in particular trolley

  forklift comprising two separate fork prongs

from each other.

  According to the documentation "Dr. Rôdigs Enzyklo

  Pardy der Flurforderzeuge "(Dr. Rödigs Encyclopedie des

  ground transport gins), 1991 edition, European publisher

  Fachpresse-Verlag GmbH, Munich, page 80, there is one

  forklift truck having a pallet stopper, which can swing from its rest position to its operating position; its raised position corresponds to a catch

  length and its position folded back to a transverse

  dirty pallets whose length and width are

different dimensions.

  The present invention aims to create a pallet stop corresponding to the type defined above, not

  not requiring specially designed ground transport

  is lying. The construction of the machine and its assembly must

  be independent of the use of a pallet stop.

  To this end, the invention relates to a pallet stop characterized in that the pallet stop comprises a clamping device for fixing on the teeth of the pallet.

  fork of the transport vehicle on the ground.

  The essential characteristic of the invention

  lies in the fact that the pallet stop is not so-

  the transport unit on the ground which would require an implementation at the level of the assembly and construction of the machine, (the machine should be

  designed immediately to receive a pallet stop: it must be

  should be provided with screwed or welded connections

  your); in general, this would necessarily result in a weakening of the fork teeth due to the fixing device; on the contrary, the tightening to the teeth

  of the fork-lift makes, on the one hand, the const-uc-

  of the machine independent of the use of a pallet stop and, on the other hand, this allows a

  retrofitting equipment of any type of trans-

  port on the ground, with the pallet stop according to the invention.

  Thus, in the simplest way, the pallet stop can be connected to the ground transport vehicle, avoiding

  thus any weakening of the teeth of the fork

  charge. The pallet stop is not related to the construction

  the machine and can thus be used

  as a piece of complementary equipment.

  According to an advantageous development of

  the invention, the pallet stop is adjustable in the di-

  transversal rection to adapt to different

  teeth of the fork. This makes it possible to fix the pallet stop to machines which have a different spacing of fork teeth, that is to say it allows a

universal application.

  An advantageous embodiment of the invention

  the ease of manufacture of the service link

  rage between the pallet stop and the teeth of the fork of the machine, provides that the clamping device has two lateral parts pulled against each other by elastic means and each lateral part is designed to engage with one of the teeth of the fork. This allows for example to mount the side portions on the inner sides of the teeth of the fork and pressurized by an elastic means, the lateral parts then pressing against the inner faces of the teeth of the fork. It is however particularly advantageous

  that the lateral part has a clamping plate

  at least partially turning the associated fork tooth, by its outer face and that the two side portions are tensioned relative to each other by at least one tension spring. Putting in support of the paais

  side is thus made against the outer face

the tooth of the fork.

  According to another development of the invention

  It is advantageous for the two lateral parts to be guiding

  in the direction of tensioning by a

  telescopic sliding bar which facilitates the manipulation of the stop of the pallet for the adjustment of the clamping width and the locking on the teeth of the

fork.

  It is particularly advantageous that the

  tubular spun has a section avoiding rotation

  relative to telescopic elements, for example a section

square or rectangular.

  The tension spring is advantageously housed in the tubular profile which protects it against dirt

and the damage.

  Handling the pallet stop according to

  the invention is simplified considerably according to a development

  advantage of the invention thanks to the side parts

  each having a handle. It is advantageous, from the point of view of manufacture, for the handle to be constituted by

  a cut made in the respective clamping plate.

  Even more advantageously, each service plate

  rage comprises an attachment member for the tension spring. It has also been found to be advantageous for each lateral part to be provided with a stop element capable of being fixed in several positions, each position corresponding to a determined active length of the pallet stop in the longitudinal direction of the teeth of the seat. fork. This develops the possibilities of using the pallet stop. In particular, this

  avoid, in the case of forklift trucks

  In certain positions of the pallet on the fork teeth, when lifting the fork, the pallet is destroyed by the load-bearing rollers. The present invention will be described hereinafter in more detail with the aid of the accompanying drawings in which:

  FIG. 1 is a perspective view of a stopper of FIG.

  According to the invention, FIG. 2a is a side view of a lateral part 2,

  FIG. 2b is a perspective view of the portion

2 of Figure 2a,

  FIG. 3a is a side view of the other lateral portion;

1,

  FIG. 3b is a perspective view of the portion

  1 is a side view of a forklift equipped with a pallet stop according to the invention; FIG. 4b shows a detail of the side view according to FIG. 4a with a set pallet abutment; FIG. 4c is a detail of the side view of FIG. 4a with a set pallet abutment; FIGS. 5a-5c are partial side views of the forklift whose teeth receive a

  pallet for different lengths of teeth and differs

  your positions of the pallet stop.

  The pallet abutment according to the invention is

  laying of two lateral parts 1,2 each provided with a clamping plate 3, 4 to bear against the teeth of

  the fork of a transport vehicle on the ground. The parties

  1 and 2 further comprise transverse profiles

  5, 6 connected to the clamping plates 3, 4, for example by welds. The transverse sections 5, 6 comprise abutment pieces 7, 8 which can be fixed in different positions. The two lateral parts 1, 2 - have pressed against each other by a tension spring 10

  housed in a tubular section 9 of square section, sliding

telescopically.

  The clamping plates 3, 4 comprise

  sections 11, 12 arranged to form handles. An organ

  hooking bar 13, 14 in the form of a tongue

  calves 11, 12 serves to fix the trac-

10.

  As shown in Figures 2a, 2b, the clamping plate 4 has in its lower part, a segment 4a curved towards the side portion 1, and which

  is used to surround the corresponding load-bearing fork.

  Similarly, the clamping plate 3 has in its lower part a segment 3a curved in the direction of the lateral part 2 and serving to surround

  the corresponding load-bearing fork (FIGS. 3a, 3b).

  The tubular section 9 comprises a first tube

  connected to the clamping plate 4 (for example by means of

  hard) and a second tube 16 connected to the clamping plate 3.

  The first and second tubes have similar sections

  mension. Advantageously, to increase the strength of the pallet abutment according to the invention, the two tubes 16 are not only connected to the clamping plates 3,

  4 but in addition to the transverse profiles 5, 6.

  A third tube 17 of larger section is fitted over the second tube 16 and is fixed to the transverse section 5 of the lateral part 1. It is obviously possible to modify the arrangement described and to slide the third tube 17 on the first

  tube 15 and to provide a fastening on the transverse profile.

sal 6 of the lateral part 2.

  During assembly of the pallet abutment according to the invention, the third tube 17 is slid onto the first tube 15 of the lateral part 1 and the traction spring 10 is hooked onto the hook members 13, 14 in the form of tongues. by hooking the eyelets at the ends of the tension spring 10 in the fastening members. This ensures the tensioning of the two lateral parts

1, 2, relative to each other.

  To tighten the pallet stop on the teeth of the fork of a transport vehicle on the ground, the abutment is moved away using the handles formed by the cutouts 11, 12, against the force of the tension spring 10, at the spacing corresponding to that of the teeth of the fork which allows to engage the stop over the teeth of the fork. The lateral part 1 thus engages with the

  outer side of the first tooth of the fork and the

  side tie 2 engaged with the outer side of the seat

  conde tooth of the fork, separated from the first. When releasing the plug, the pallet stopper locks on the

  teeth of the fork under the effect of the tension spring 10.

  The pallet stop is universally applicable

thanks to the construction described.

  To have different useful lengths (in the longitudinal direction of the teeth of the fork), the transverse sections 5, 6 comprise holes of

  18, 19 behind which are fixed nuts.

  The fixing holes 18, 19 are provided in different positions spaced in the longitudinal direction of the teeth of the fork. In combination with the fixing holes occupying different positions on the abutment elements 20, 21 which are to be connected to the transverse sections 5, 6, several useful lengths are thus obtained a, b, c for the pallet abutment according to the invention. as shown in FIGS. 4a, 4b, 4c showing a single stop

  pallet according to the invention, mounted on a forklift

forked tractor.

  Figures 5a-5c show a side view par-

  of a forklift truck with a pallet on the fork for different lengths of loose teeth

  fork and different positions of the pallet stop.

  In all variants, the pallet is taken transversely each time. According to the variant of Figures 5a and 5b, a pallet of a certain size is received by forks of different lengths. By appropriate adjustment of the pallet stop according to the invention, in both cases a positioning of the pallet is obtained which is such that when the fork is lifted and lowered, the load-carrying rollers that unfold or fold up, move in an area S between transverse stiffening members

  lower the pallet. It is thus avoided that during the

  the fork the truck load rollers

  fork lift does not tear off the transverse lath

  the pallet and thus destroy the pallet.

  In the variant of Figure 5c we have a larger

  lette received by long fork teeth; in this case also the pallet stop according to the invention ensures

the effect described.

Claims (8)

CLAIMS V E N D I C A T IO N S   Pallet stop for a ground transport vehicle, in particular a forklift comprising two fork teeth spaced from one another, characterized in that the pallet stop (20, 21) comprises a clamping device ( 3, 4) to attach to the teeth of the fork of the ground transport vehicle.   2) pallet stop according to claim 1, characterized in that it is adjustable in the transverse direction to adapt to the different spacings of   Fork teeth receiving the load. -   3) pallet stop according to claim 1   or 2, characterized in that the clamping device com-   door two side parts (1, 2) tight one against   the other by elastic means, and each lateral part   (1, 2) is designed to engage one of the   Fork teeth receiving the load.   Pallet stop according to claim 3,   characterized in that each lateral portion (1, 2) comprises   takes a clamping plate (3, 4) surrounding at least   the corresponding fork tooth is made from its outer face and the two lateral parts (1, 2) are pulled against each other by at least one tension spring (10). 5) pallet stop according to claim 4, characterized in that the two lateral parts (1, 2) are guided in the direction of the tension by a profile   tubular (9) sliding telescopically.   6) pallet stop according to claim 5, characterized in that the tension spring (10) is housed   inside the tubular section (9).   7) Pallet stop according to one of the claims   3 to 6, characterized in that the lateral parts   (1, 2) each comprise a handle.   8) pallet stop according to claim 7,   characterized in that the handle is formed by a   cut (11, 12) in the respective clamping plate (3, 4).   9) Pallet stop according to one of the claims   4 to 8, characterized by a hooking member (13,   14) for the tension spring (10) provided on each than clamping (3, 4).    ) Pallet stop according to one of the claims   3 to 9, characterized in that a stop element (20, 21) can be fixed in different positions on its lateral part (1, 2) and each position corresponds to -ne   determined effective length (a, b, c) of the stopper   in the longitudinal direction of the teeth of the furnace receiving the load.