FR2763294A1 - Device for positioning and coupling skip rear door frame - Google Patents

Abstract

The device comprises two guide hooks which fit the shape of two ball bearings. The guide hooks have a rounded inclined surface at their ends as well as an internal circular shape and are welded onto uprights of the doorframe (7). A sub-assembly welded onto the frame uprights comprises a shouldered race with a tapping, a row of ball bearings, a thick washer, anti-vibration washers and a screw with hexagonal head.

Description

 The present invention relates to a device for positioning and hooking a rear door frame on skips.

The locking of the rear door frame is usually ensured by hooks located on the rear frame crossmember, which cause a partial deterioration of the goods during emptying (example: Emptying of potatoes), a rear door frame guide insufficient, imperfect sealing when the goods push on the rear frame and deterioration of the fertilizer distributors located under the bucket and this during tipping.

The device according to the invention overcomes these drawbacks. I1 further comprises, two guide hooks fixed at the two lower right and left ends of the rear door frame uprights, hooks which by their shape come to marry sealed ball bearings, themselves mounted on a sub-assembly fixed on the rear frame uprights.

These sub-assemblies allow positioning and mounting - dismounting of ball bearings.

When the bucket is in the descent phase, the guide hooks come, thanks to their inclined surfaces, to slide on the ball bearings located at each lower right and left end of the body, thus ensuring the guidance of the rear door frame, closing phase the hooks follow the shape of the bearings, thus allowing a better seal between the rear door frame and the body frame uprights.

According to the particular embodiments
The sealed ball bearings item 3 may be larger or smaller in size depending on the characteristics of the bucket.

The sub-assembly consisting of the parts marked 1, 3, 4, 5 may be of different dimensions depending on the type of ball bearing rep. 2 used depending on the characteristics of the bucket. The position of this sub
set may be different on the frame amount
rear rep. 7.

The guide hooks rep. 6 can be of dimensions
different depending on the diameter of the bearing. The sloping part can be more or less inclined, the shapes
rounded outer and inner cutting of shapes
other than circular. Their position on the uprights of
rear door frame Ref. 8 may be different depending on the position of the sub-assembly or the type of bucket.

 The washers item 4 can be self-locking type washers.

The screw rep. 5 can be a hexagonal screw, the
specifications may vary depending on the type of
bearing used.

The accompanying drawings illustrate the invention
Figure 1 shows one of the possible locations of the
device in rest position on a bucket and this seen from
left.

Figure 2 shows one of the possible locations of the
device in rest position seen from the rear of a bucket.

Figure 3 shows the position of the device during tipping
on a bucket and seen from the left.

FIG. 4 represents the enlargement of the device in the rest position, seen from the left, as well as the upright rep. 8 on which can be welded the guide hook ref. 6.

FIG. 5 represents the enlargement of the device in
a position during tipping, view from the left as well as the rear frame upright. 7 which can be welded
the subset.

Figure 6 shows the assembly and exploded view of the parts
reference 1, 2, 3, 4, 5 constituting the sub-assembly which can
be welded to the rear frame pillar ref. 7.

FIG. 7 represents one of the profiles of the guide hook
item 6 which can be welded to the door frame upright
rear rep. 8.

With reference to these drawings, the device is composed of a
ring rep. 1 which has a shoulder serving as a bearing face for the bearing and an upright part, the length of which is less than the width of the bearing, on which the bearing rep. 2 can be mounted tight. This ring also includes a tapping to the diameter of the screw item 5. This ring can be welded to the rear frame pillar item 7. The ring rep. 3 has an outside diameter slightly greater than the bore of the bearing and has 2 chamfers on either side of this outside diameter.

This part also has sufficient drilling for the passage of the screw item 5.

The screw rep. 5 make the parts rep. 4, 3, 2 and 1 by tightening. The screw then comes to rest on the washers rep.4 which itself apply the ring rep.3 on the bearing rep.2.

In the embodiment according to FIG. 7, the guide hook rep.6 has an inclined part, rounded at its end, which allows it to guide the rear door frame by sliding on the ball bearings rep.2 and then, by final descent phase, follow the shape of the bearing by its circular inner shape and diameter equal to that of the bearing.

By way of example, the ball bearing would be a rigid bearing with a row of sealed series balls whose dimensions would be 3 cm x 7.2 cm x 1.9 cm.

The guide hook could have a thickness of 2 cm, the production of which comes from an oxygen cutting operation.

The device according to the invention is particularly intended for positioning and hooking of rear frame on agricultural and / or road skips.

Claims (5)

1) Positioning and hanging device for rear door frame on skips characterized in that it comprises two guide hooks (6) which conform to the shape of two ball bearings (2), and this when the skip is at rest. 2) Device according to claim 1 characterized in that the guide hooks (6) have an inclined surface rounded at its end and a circular interior shape and are welded to the uprights of rear door frame (8). 3) Device according to any one of the preceding modifications, characterized in that the shouldered ring with a thread (1) the ball bearing with a row of balls (2), the thick washer (3), the anti-vibration washers (4) , and the hexagonal head screw (5) constitutes a welded sub-assembly on the rear frame uprights (7). 4) Device according to claim 1 or claim 3 characterized in that the ball bearings (2) are mounted tight on the shoulder of the ring (1) and are blocked by pressing the thick washer (3) and the washers anti-vibration (4) and this by tightening the hexagonal screw (5). 5) Device according to claim 4 characterized in that the ring (1) has a shoulder on which the bearing (2) rests and an upright part whose length is less than the width of the bearing, and the ring (3) with an outside diameter greater than the bore of the bearing (2).