FR3080311A1 - DEVICE FOR UNLOCKING MECHANICAL PARTS - Google Patents

Abstract

The present invention relates to a device (1) for unblocking mechanical parts such as cylinders cylinders or nuts remarkable in that it comprises a slide (2) of generally C-shaped cross section comprising at least two orifices (3). ) located on each side of the center of said slide (2) and a groove (4), two T-bolts (10) with a hole (12) adapted to be inserted into the groove (4) of said slide (2). ) and sliding along said groove (4), gripping means (20, 30) secured to each of the lardons (10), and solidarity means (6) located at the front of the slide (2). ) adapted to receive a lever arm for unlocking said unlocked part.

Description

Technical area

The present invention relates to a device for unlocking mechanical parts such as, for example, cylinder cylinders or nuts.

The claimed device finds a preferential application in the release of mechanical parts such

that present in machines of works public and foresters in machines civil engineering, and in the heavyweight.

Prior art

In the field of unlocking mechanical parts, the use of hydraulic benches is well known. Indeed, the hydraulic benches allow, using jaws arranged at 120 °, to grasp the part to be released. Pressure is first applied to the part via the jaws and a jack then allows said part to rotate in order to unlock it. However, known hydraulic benches are not easily transportable and do not adapt to all cylinder technologies, nor to all dimensions of nuts.

The publication GB-A-2.035.868 describes a tool for gripping the end of a cylindrical filter cartridge having a pair of arms with jaws, each arm being secured to a base plate, the two base plates being provided of racks, held together and movable by means of a bolt or stud passing therethrough, and carrying a pinion capable of meshing said racks.

However, this type of tool is difficult to transport and does not adapt to all types of cylinders or nuts.

CMGO6H-FR-1_TEXTE DEPOSE_MH / RG / AG

Statement of the invention

The object of the present invention is therefore to overcome the drawbacks mentioned above and to propose an unlocking device which is easily transportable and which can be adapted to all types of actuators or nuts.

The invention relates to a device for unlocking mechanical parts such as, for example, cylinder cylinders or nuts, being remarkable in that it comprises at least:

- a cross-section slide in the general shape of a C comprising at least two orifices located

on each side of the center of said slide and an groove, - two pieces of bacon in made of T with a suitable hole to be inserted in the groove of said slide and to slide along of said groove,

- gripping means secured to each of the strips,

- Securing means located at the front of the slide capable of receiving a lever arm for the release of said part to be unlocked.

Advantageously, the orifices are oblong holes located within the groove and on each side of the center of said slide.

Preferably, said gripping means are pins comprising a thread and a cylindrical stud.

According to a preferred embodiment, the gripping means are two jaws in the general shape of arrow comprising two branches forming between them an obtuse angle with a hole in the center of said arrow and having protuberances with a hole located at each free end of said branches , said jaws adapted to be fixed on said lardons.

In addition, the pawns are fixed on each of the two

CMGO6H-FR-1_TEXTE DEPOSE_MH / RG / AG jaws.

The unlocking device preferably comprises two fixing screws capable of fixing said jaws on said slide.

Preferably, the unlocking device comprises two clamping screws capable of exerting a mechanical force tending to bring the jaws closer to one another.

Advantageously, the slide, the strips and the gripping means are made of steel.

Brief description of the figures

Other advantages and characteristics will emerge more clearly from the description which follows of an embodiment of an unlocking device according to the invention, with reference to the appended figures in which:

FIG. 1 is a front perspective view of an unlocking device according to the invention according to a first alternative embodiment,

FIG. 2 is a front perspective view of the slide of the unlocking device of FIG. 1,

FIG. 3 is a front perspective view of a lardon of the unlocking device of FIG. 1,

FIG. 4 is a front perspective view of a pin of the unlocking device of FIG. 1,

- Figure 5 is a perspective front view of a second alternative embodiment of a release device in accordance with the general invention, the figure is a perspective front view of a second alternative embodiment of the release device in Figure 5,

FIG. 7 is a front perspective view of a jaw of the unlocking device of FIG. 5,

- Figure 8 is a front perspective view of a

CMGO6H-FR-1_TEXTE DEPOSE_MH / RG / AG third variant of an unlocking device according to the invention.

Best way to realize the technical invention

Thus, with reference to FIGS. 1 to 8, the device 1 for unlocking mechanical parts, not shown, such as, for example, cylinder cylinders or nuts comprising:

a slide 2 in the general shape of a C of cross section comprising at least two orifices 3 situated on each side of the center of said slide 2 and a groove 4,

- two T-shaped strips 10 with an orifice 12 capable of being inserted in the groove 4 of said slide 2 and sliding along said groove 4,

- gripping means 20, 30 secured to each of the strips 10,

- Securing means 6 located at the front of the slide 2 capable of receiving a lever arm for the purpose of unlocking the device.

Here we designate by before the part of the release device 1 or one of its constituent elements located on the side of an operator using under normal conditions said release device 1 to unlock a part, and by the rear part located opposite side.

There is shown in Figures 1 to 3, a first alternative embodiment of the device 1 for unlocking mechanical parts with a slide 2 in general C shape of cross section comprising at least 2 orifices 3 preferably located on each side of the center of said slide 2 and a groove 4. Two T-shaped strips 10 having a hole 12 are inserted in the groove 4 of the slide 2 and capable of sliding along said groove 4. In addition, gripping means 20, 30 are joined to the lardons 10, and joining means 6 located at

CMGO6H-FR-1_TEXTE DEPOSE_MH / RG / AG the front of the slide 2 allow to receive a lever arm in order to unlock the device for mechanical parts with high torque.

Furthermore, in this first variant embodiment described, the unlocking device 1 comprises two fixing screws 40 with cylindrical head each screwed into the orifice 12 of the strips 10 to block the latter according to the dimension of the mechanical part and therefore of the '' desired gap to unlock. The attachment means 6 located at the front of the slide 2 are capable of receiving a lever arm for the release of the part.

With reference to FIG. 2, the orifices 3 of the slide 2 are advantageously oblong holes situated within the groove 4 and on each side of the center of said slide 2 allowing the passage of the fixing screws 40 and the adjustment of the gap between the two strips 10.

Figure 3 shows in more detail a lug 10 in the shape of a T. It has in its center an orifice 12 which can be threaded or non-threaded (not shown). Two chamfers can be located on either side of the orifice 12 allowing better sliding in the groove 4 of the slide 2.

Gripping means 20, 30 complete the unlocking device 1. These gripping means 20, 30 can be pins 20 (see FIG. 4) comprising a thread 21 and a cylindrical stud 22 as shown in FIG. 1 according to the first embodiment of the invention and / or jaws 30 in the general form of arrows as shown in FIGS. 5 to 8 according to the second and third embodiments of the invention.

The jaw 30 in the general shape of arrow illustrated in FIG. 7, has two branches forming between them an obtuse angle and a hole 31 in the center of said arrow. She

CMGO6H-FR-1_TEXTE DEPOSE_MH / RG / AG also has protrusions 32 each provided with a hole 33 and located at the free end of the two branches of said arrow. Each jaw 30 is able to be fixed to one of said lardons 10. The hole 31 located in the center of the arrow is able to let pass a fixing screw 40 allowing the spacing of the jaws 30 to be adjusted on the slide 2. The holes 33 of the protrusions 32 receive clamping screws 50 as illustrated in FIGS. 5 to 8. Nuts 80 complete the locking device 1 and allow, using said clamping screws 50, the tightening of the mechanical parts to unlock.

With reference to FIG. 6, and according to a second alternative embodiment, a piece of the nut type 60 can be released using the jaws 30. When it is a question of unlocking the piston cylinders, the pins 20, such as as described above, are screwed into the hole 31 in the center of the jaw arrow 30.

A ratchet or impact wrench can act as a lever arm 70 and be used with the securing means 6 located at the front of the slide 2 for the release of mechanical parts such as nuts or piston cylinders.

According to the first embodiment (Figure 1), two lardons 10 are inserted in the groove 4 of the slide 2. On these lardons 10 are screwed the pins 20. Fixing screws 40 are screwed in the lardons 10 to determine the necessary gap to unlock the part. Once the gap is fixed, the pins 20 enclose the part and the unlocking takes place easily. For an even easier release, an impact or ratchet wrench can be used for parts requiring a higher torque.

According to a second alternative embodiment (illustrated in FIGS. 5 and 6), the lardons 10 are mounted within the groove 4 of the slide 2 and fixed by means of the screws.

CMGO6H-FR-1_TEXTE DEPOSE_MH / RG / AG fixing 40. The pins 20 are screwed into the hole 31 in the center of the arrow of each jaw 30. Clamping screws 50 with cylindrical head are passed through the holes 31 of the protrusions 32 Nuts 80 are screwed onto these clamping screws 50 to fix the spacing between the jaws 30. A piece of the nut type 60 can then be released as has been described for the first alternative embodiment.

The third embodiment differs from the second in that pins 20 are screwed into the hole 31 in the center of the arrow of each jaw 30. A piece of cylinder cylinder type can then be released as described for the first variant. The addition of the jaws 30 makes it possible to take the part to be released further than necessary since the jaws 30 serve as an extension.

Industrial application possibilities

The release device 1 according to the invention applies more particularly to mechanical parts present in public works and forestry machines, in civil engineering machines, and in heavy goods vehicles, but it can also be used for other types of gear.

It is understood that the examples described are only specific illustrations and in no way limit the invention and its fields of application. Those skilled in the art will be able to make adjustments in size, in general shape, in layout and in material to the particular embodiments without departing from the scope of the present invention.

Claims (8)

1. Unlocking device (1) for mechanical parts such as, for example, cylinder cylinders or nuts, characterized in that it comprises at least: - a slide (2) of cross section in general C shape comprising at least two orifices (3) located on each side of the center of said slide (2) and a groove (4), - two T-shaped strips (10) with a hole (12) capable of being inserted into the groove (4) of said slide (2) and of sliding along said groove (4), - gripping means (20, 30) secured to each of the strips (10), - Securing means (6) located at the front of the slide (2) capable of receiving a lever arm for the release of said part to be unlocked. 2. Unblocking device (1) according to claim 1 characterized in that said orifices (3) are oblong holes located within the groove (4) and on each side of the center of said slide (2). 3. Unlocking device (1) according to any one of claims 1 or 2 characterized in that said gripping means are pins (20) comprising a thread (21) and a pin (22) cylindrical. 4. unlocking device (1) according to any one of claims 1 or 2 characterized in that said gripping means are two jaws (30) in the general shape of arrow comprising two branches forming between them an obtuse angle with a hole (31 ) in the center of said arrow and having protuberances (32) with a hole (33) located at CMGO6H-FR-1_TEXTE DEPOSE_MH / RG / AG each free end of said branches, said jaws (30) capable of being fixed on said lardons (10). 5. Unblocking device (1) according to claims 3 and 4 characterized in that said pins (20) are fixed on each of the two jaws (30). 6. unlocking device (1) according to any one of claims 4 to 5 characterized in that it comprises two fixing screws (40) adapted to fix said jaws (30) on said slide (2). 7. Unlocking device (1) according to any one of claims 4 to 6 characterized in that it comprises two clamping screws (50) capable of exerting a mechanical force tending to bring the jaws (30) one of the 'other. 8. Unlocking device (1) according to any one of the preceding claims, characterized in that the slide (2), the strips (10) and the gripping means (20,30) are made of steel.