MXPA96002576A - Supplementary weight for a vehic - Google Patents

Abstract

The present invention relates to a supplementary weight for the ballast of a vehicle, the weight has at least one entry opening which is surrounded by an upper leg and a lower leg and which opens on one side, the weight being adapted for being hooked on a carrier component, wherein the upper leg is supported on the carrier component projecting into the entry opening where generally the vertical holes extend in the upper leg and in the lower leg, the leg holes being aligned with the corresponding vertical hole in the carrier component and receiving a clamping bolt when the weight is mounted on the carrier component characterized in that: the clamping bolt has a threaded section, and the hole in the lower leg receives an axially movable tensioning device, the device having a threaded hole into which can be screwed the threaded section of the bolt of clamping, the clamping bolt and the tensioning device hold the upper leg in the carrier component

Description

SUPPLEMENTARY WEIGHT FOR A VEHICLE Antß? Edßntes de? invention The invention relates to an additional weight for the ballast of an agricultural tractor.

A known supplementary weight has at least one entry opening bordered by an upper and a lower leg and an opening on one side. Within this entry opening a carrier component can be inserted on the vehicle side; for example, a base weight fastened to the front of the vehicle in such a manner that the upper leg of the supplementary weight is supported on the carrier component and so that the base weight is held by the carrier component. The recesses extend in the upper leg and in the lower leg of the supplementary weight which are at least partially aligned with each other and are generally vertical. The recesses accept a clamping bolt which also extends through a vertical locating recess of the carrier component which is aligned with the recesses in the supplementary weight, when the supplementary weight is engaged within the carrier component, and which is used to secure the supplementary weight to the carrier component.

For the ballast of an agricultural tractor, ballast weights in the form of a plate which can be hooked and secured to a carrier component on the vehicle in the transverse direction are usually employed as a series of laminations along one another. Such ballast weights are described in the application of DE-C-1 1941 316. For fastening a vertical retainer is used which is provided on the vertical component, for example, a bolt which is engaged by a semi-cylindrical vertical groove in the two ballast weights adjacent to the bolt. After being hooked onto the carrier component, the ballast weights are assembled to each other with tension screws that extend through the transverse holes through all the ballast weights. The clamping between the carrier component and the ballast weight includes a gap so that they are struck and the vibrations applied to the vehicle cause a relative movement between the carrier component and the ballast weights. Such relative movement can cause noise.

Ballast weights in the form of plates often weigh approximately 50 kilograms and therefore can be handled only with difficulty. It is therefore a common practice to use supplementary weights of a piece that have been taken by lifters. Such supplementary one-piece weights contain bolts that protrude on one side so that they can be picked up or picked up by a front or rear coupling arrangement of the tractor. During the course of field operation the ballast weights remain in the coupling arrangement. However, a suitable coupling arrangement is not always available. Furthermore, it is often desirable for the coupling arrangement or its drive devices to be available during operation and not to be emptied by the weights carried.

Summary of the Invention Therefore, it is an object of this invention to provide a supplementary weight which can be simply and safely handled and which can be fastened to a carrier component of the vehicle without separation.

This and other objects are achieved by the present invention wherein a supplementary weight has a fastening bolt for the fastening device which is axially supported on the upper leg by the head of the bolt. In the recess of the lower leg an axially movable tensioning device is arranged which contains a threaded hole into which the clamping bolt can be screwed.

For attaching the supplementary weight to the carrier component, the supplementary weight is brought near the carrier component such that a free end of the carrier component contacts the input opening of the supplementary weight and the two recesses of the supplementary weight they are aligned with a locating recess of the carrier component. Then the clamping bolt is inserted through the recess of the upper leg into the input opening of the supplementary weight and is screwed into the threaded hole of the tensioning device. Therefore the tensioning device is pulled upwards. It approaches the carrier component and seizes it between the upper leg and the tensioning device. One piece weight can be lifted by appropriate lifting devices, for example, a three-point vehicle hitch. For reasons of fragging technology it is advantageous to configure the supplementary weight as a multi-piece design, preferably in three pieces, in order to maintain the cooling period after setting within acceptable limits. In a multi-piece design, three partial weights can be arranged side by side and permanently assembled one to another, with the recesses extending through the upper and lower legs being located at the central partial weight.

Each additional weight is handled simply and safely and a hold is allowed without a separation to a carrier compo of the vehicle. When the tensioning device is in its lowest position, the inlet opening offers a large free opening for the intake process.

In a preferred embodiment, the tensioning device is a threaded handle which is cylindrical in at least some section and which is arranged axially to move in a recess, at least partially cylindrical, in the lower leg. The surface of the threaded sleeve facing upwards is larger than the cross section of the locating recess in the carrier compo so that the threaded sleeve can be held on the region of the eyebrow of the locating recess. For this purpose the threaded sleeve can be provided with a surface that widens in the upward direction or contains an intermediate compo. However, a low manufacturing cost is offered by means of a cylindrical threaded sleeve whose diameter over the length of the threaded sleeve is constant and greater than the diameter of the locating recess in the carrier compo.

Appropriate means are provided to secure the tensioning device against rotation. For this purpose a clamp is projected into the entry opening and is attached to the upper section of the tensioning device and which engages the side wall of the entry opening and which prevents a rotation of the tensioning device during its axial movement. Since this clamp projects beyond the recess in the lower part, it limits the axial movement of the tensioning device and prevents it from moving downwardly out of the recess in the lower leg. This offers protection against loss.

To improve the entrance of the clamping bolt into the threaded hole of the tensioning device, the tensioning device is preferably provided with a hole whose upper section is configured as a cylindrical centering hole for axial movement at the entrance of the lower end of the clamping bolt. . The clamping bolt can be screwed into a threaded section which is adjacent to the centering hole. The free end of the clamping bolt can have a conical chamfer to help the entry.

The tensioning device includes a generally downward axial opening adjacent the threaded section, for example, a cylindrical orifice, whose cross-section is considerably larger than the cross-section of the threaded hole (eg, twice as large). The axial length of the tensioning device must be sufficiently large that the clamping bolt when fully assembled (tensioned position) ends within the opening and does not project beyond the tensioning device. This configuration protects the threads against dirt and damage.

In order to retain the tensioning device in the recess in the lower leg without danger of loss, a bolt or retainer or the like projects radially outwardly from the lower end of the tensioning device. The projection engages a stop on the lower leg and limits the axial upward movement of the tensioning device.

In a preferred embodiment, the fastening bolt is provided with a head region for the purpose of supporting the upper leg (for example a bolt head with a sheave), a cylindrical central shank and an adjacent threaded section. The cylindrical section carries a spacer sleeve which is free to rotate, one end of which is supported on the head end and is secured by a retainer against axial movement and any danger of loss. The retaining device can be a retaining ring inserted into a groove in the fastening bolt or the like. The spacer sleeve is guided in the generally cylindrical recess of the upper leg, free to slip. The spacer sleeve is configured with a length such that it projects into the inlet opening when the head region of the clamping bolt is seated on the upper leg, so that it can project into the locating recess of the carrier component. . The outer diameter of the spacer sleeve and the locating recess of the carrier component conform to each other so that the spacer sleeve can be accommodated within the free locating recess to slide. This embodiment makes it possible for the clamping bolt to be inserted during assembly without the use of any force and that it be loaded mainly only by tension forces and not by any shearing loads. Therefore, a cost effective standard bolt with comparably glued dimensions can be used.

In a further embodiment the upper leg includes a ridge or threshold in the region surrounding the outer side of its recess which is directed downward toward the inlet opening, and the rear wall of the inlet opening contains a depression in its upper region. In addition, an upwardly directed groove extends in the region of the rear wall of the entry opening in the upper leg and engages a detent directed upwardly in the carrier component. When the carrier component engages the entry opening the supplementary pin is supported by the region of its eyebrow on the upper surface of the carrier component and is supported by its rear wall on the face of the carrier component. The spacing that is provided behind the eyebrow region and on the back wall creates a lever arm which amplifies the bearing force of the gravity force of the weight developed during the grasping of the carrier component.

Brief Description of the Drawings Figure 1 shows an agricultural tractor carrying an additional weight according to the invention.

Figure 2 is a sectional view through a part of a supplementary weight according to the invention with the fastening means and through a carrier component in a first assembled condition.

Figure 3 is a view of the invention of Figure 2 in a second assembled condition.

Figure 4 is a view of the invention of Figure 2 in a third assembled condition.

Figure 5 is a view of the invention of Figure 2 in a fourth assembly condition.

Detailed description Figure 1 shows an agricultural tractor on whose front side a carrier component 12 is fastened, in particular a basis weight. A supplementary weight 10 is hooked to the base weight 12 and used for the ballast of the tractor.

Referring to Figure 2, the supplementary weight 10 includes a weight section 11. The right side of the weight section 11 as seen in Figure 2 faces a vehicle (not shown) to which a carrier component is attached. 12. The carrier component 12 is inserted into an inlet opening 14 of the supplementary weight, which opens to the side. The entry opening 14 is generally U-shaped and is bordered by an upper leg 16 and a lower leg 18.

The upper leg 16 is hook-shaped and contains a downwardly opening slot 17. The lateral surface of the slot 17 engages an upwardly projecting retainer 20 of the carrier component 12. In an outer eye region of the the inlet opening 14 the upper leg 16 includes a shoulder 22 which projects downwardly into the inlet opening 14 and which holds the weight 11 on the carrier component 12. In addition, a portion projecting from the rear wall 24 of the inlet opening 14 is supported on a lower end face 26 and the carrier component 12. Between the contact support surfaces (17, 20, 22, 24 and 26) the carrier component 12 and the weight section 11 are spaced apart outwardly from each other by free spaces 28 and 30. As described in more detail below, the configuration of the free spaces 28 and 30 result in a lever arm between the shoulder 22 and the axis of the clamping bolt 32, which increase the force of contact on the rear wall 24 of the weight section 11 and the end face 26 of the carrier component 12 during the grip of the carrier component 12, and which makes it possible to hold the weight section 11 without any separation.

The vertical holes 34 and 36 which are aligned with each other and with a vertical locating hole 38 in the carrier component 12 when the weight section 11 is hooked on are generally extended through the upper leg 16 and the lower leg 18. the carrier component 12. The holes 34, 36 and the orifice 38 are generally cylindrical. The diameter of the locating hole 38 may be slightly larger than the diameter of the hole 34 in the upper leg 16.

The hole 36 in the lower leg 18 engages a cylindrical tensioning device 40, configured as a screw sleeve which can be moved vertically or axially in the hole 36. A clamp 42 is attached to the upper end of the tensioning device 40, which projects inside the inlet opening 14. Regardless of the vertical position of the tensioning device 40, the clamp 42 is supported at one end on the rear wall 24 and thus prevents a rotation of the tensioning device 40. Furthermore, the clamp 42 prevents the tensioning device 40 falls out of the hole 36. A bolt 43 projects to the side at the lower end of the tensioning device 40 further protects against loss. The pin 43 projects into a slot 47 in the side of the hole 36 in the lower leg 18. The slot 47 terminates in a stop 44 and therefore limits upward movement of the tensioning device 40.

The tensioning device 40 has an axial hole whose upper section is configured as a cylindrical centering hole 45 which accepts axial movement of the lower end of the clamping pin 32. Below and to the side of the centering hole 45 there follows a threaded hole 46 within which the clamping bolt 32 can be screwed in. The threaded hole 46 is on one side of a lower cylindrical hole 48 whose diameter is clearly larger than the diameter of the clamping bolt 32. The length of the tensioning device 40 is selected such that the bolt The fastener 32 completely assembled (as shown in Figure 3) does not project beyond the cylindrical hole 48. Furthermore in its lower position, in which the clamp 42 is in contact with the lower leg 18, the tensioning device 40 does not must project beyond the lower contour of the weight section 11.

The clamping bolt 32 has a hexagonal bolt head 50, an adjacent cylindrical handle 52 and a threaded section 54. The lower end of the clamping bolt 32 is provided with a conical bevel which makes it easier to insert the clamping bolt 32 into the orifice of the tensioning device 40. A sheave 56 and a spacer sleeve 58 are arranged between the hex bolt head 50 and the retainer 55 which is attached to the handle 52 so that they can not be lost. The retainer 55 may be, for example, a wire-snap ring assembled within a circumferential groove in the handle 52. The spacer sleeve 54 may be rotated with respect to the fastening bolt 32. This engages with a sliding fit in the orifice 34. The length of the spacer sleeve 58 is designed in such a way that it projects into the inlet opening 14 provided that the clamping bolt 32 is in contact through the roller 56 with the upper leg 16, which is when the clamping bolt 32 is in the lowest position. In this position the spacer sleeve 58 can be received by the hole 38.

The weight 10 is mounted on the carrier component 12 in the following manner: initially the clamping bolt 32 is removed from the holes 34 and 36 of the bolt 10. As previously described the tensioning device 40 constantly remains with the weight 10. The weight 10 is lifted by the appropriate means and is hooked with its entry opening 14 on the carrier component 12 so that the holes 34, 36 and 38 are approximately aligned. Now the clamping bolt 32 is inserted into the upper hole 34 and the hole 38 inserted into the settling hole 45 of the tensioning device 40 and screwed into the threaded hole 46. At this point the spacer sleeve 58 does not yet enter the entry opening. 14 or of hole 38 (figure 2).

When the clamping bolt 32 is screwed into place the tensioning device 40 moves upwards until its upper end face comes into contact with the lower side of the carrier component 12 (Figure 3). Since the cross section of the holes 34 and 38 is considerably larger than the cross section of the clamping bolt 32, the clamping bolt 32 can be inserted into the holes 34 and 38 and secured within the tensioning device 40 without applying any significant force, even if the holes 34 and 36 were not exactly aligned with the hole 38.

When the clamping bolt 32 is further screwed in place with the application of some torsional force of tensioning device 40 it contacts and is supported on the carrier component 12, so that now the clamping bolt 32 with the spacer sleeve 58 moves down. At the same time the spacer sleeve enters the orifice 38 of the carrier component 12 and centers it in the upper hole 34, whereby the weight 10 is precisely positioned. When the standard torsional force is reached, all parts are assembled together (figure 4). The lever arm described above holds the force for supporting the force of gravity on the weight.

When the connection is released the tensioning device 40 initially moves downwards, until the clamp 42 comes into contact with the lower part 18. Here the spacer sleeve 58 remains first in the hole 38 (figure 5). If the clamping bolt 32 is further unscrewed, then the spacer sleeve 58 is pulled out of the hole 38 until the clamping bolt 32 can be finally removed freely.

Although the present invention has been described in conjunction with a specific embodiment, it is understood that many alternatives, modifications and variations will be apparent to those skilled in the art in light of the foregoing description. Therefore, this invention is intended to cover all those alternatives, modifications and variations which fall within the spirit and scope of the attached clauses.

Claims (10)

RE I V I N D I C A C I O N S

1. An additional weight for the ballast of a vehicle, the weight has at least one entry opening which is surrounded by an upper leg and a lower leg and which opens on one side, the weight being adapted to be hooked on a component carrier, wherein the upper leg is supported on the carrier component projecting into the entrance opening where generally the vertical holes extend in the upper leg and in the lower leg, the leg holes being aligned with the hole corresponding vertical in the carrier component and receiving a fastening bolt when the weight is mounted on the carrier component characterized by: the clamping bolt has a threaded section; Y the hole in the lower leg receives an axially movable tensioning device, the device having a threaded hole into which the threaded section of the clamping bolt, the clamping bolt and the tensioning device can be screwed in the carrier component to the upper leg .

2. The supplementary weight as claimed in clause 1, characterized by: The tensioning device comprises a threaded sleeve having at least one leg which is cylindrical and the tensioning device is received movably by the hole in the lower leg.

3. The supplementary weight as claimed in clause 1, characterized by: a clamp is attached to an upper section of the tensioning device, the clamp projects into the entry opening by hooking a wall of the entry opening and preventing rotation of the tensioning device.

4. The supplementary weight as claimed in clause 1, characterized by: The tensioning device includes a centering hole which slidably receives one end of the clamping bolt, and a threaded hole on one side of the centering hole, the threaded hole receives the threaded section of the clamping bolt during assembly.

5. The supplementary weight as claimed in clause 4, characterized by: the tensioning device includes an additional hole adjacent to the threaded hole, the additional hole has a diameter which is larger than a diameter of the threaded hole and the tensioning device has an axial length which is dimensioned such that the threaded end of the clamping bolt it is received by the additional hole when the bolt is completely screwed into the tensioning device.

6. The supplementary weight as claimed in clause 1, characterized by: a projection is radially projected from a lower end of the tensioning device, and the projection can be engaged with a stop on the lower leg to limit the movement of the tensioning device towards the upper leg.

7. The supplementary weight as claimed in clause 1, characterized by: the fastening bolt includes a head which can be engaged with the upper leg, a generally cylindrical handle and a threaded section; a spacer sleeve received rotatably through the hole in the upper leg, and the sleeve receives the rod, and a retaining device fixed to the rod to hold the sleeve on it.

8. The supplementary weight as claimed in clause 7, characterized by: The spacer sleeve has a length such that it extends into the entrance opening and is received by the hole of the carrier component when the clamping bolt head engages the upper leg.

9. The supplementary weight as claimed in clause 1, characterized by: the upper leg includes a shoulder which extends into the entrance opening; an upper part of a rear wall of the inlet opening forms a backward facing depression and a downward facing slot; Y the carrier component includes a retainer which is received by the depression and the slot.

10. The supplementary weight as claimed in clause 1, characterized by: the supplementary weight comprises a plurality of partial weights arranged side by side, attached to each other, which can be handled as a unit, and because the upper and lower leg holes are formed in one of the partial weights. SUMMARIZES An additional weight for the ballast of a vehicle can be adapted to engage on a carrier component. The weight includes an entry opening which is surrounded by an upper leg and a lower leg. The upper leg is supported on the carrier component projecting into the entrance opening. The vertical holes generally extend in the upper leg and in the lower leg and the leg holes are aligned with a corresponding vertical hole in the carrier component. A clamping bolt is received by these holes when the weight is mounted on the carrying member. The clamping bolt has a head, a shank and a threaded section. The clamping bolt is screwed into the axially movable tensioning device which is mounted inside the lower leg, thereby holding the carrier component to the upper leg.