JPS6017392Y2 - Bracket mounting structure - Google Patents

Description

[Detailed description of the invention] This invention is a hinge bracket for a dump truck vessel.
This invention relates to a mounting structure for a bracket that is mounted between ribs of a hoist bracket and receives heavy loads.

Conventionally, the hinge bracket a and the hoist bracket b are welded and fixed between ribs e provided on the bottom wall d of a dump truck vessel C, as shown in FIG.

When both end faces a/, b/ of brackets a, b are welded and fixed to end faces e', e' of rib e, the length Ll of brackets a, b and the distance between ribs e, e are determined. L
Root spacing (bracket end faces a', b
Welding is performed with a small gap (gap) ti between the rib end faces e' and e' to prevent a decrease in welding strength due to poor welding.

However, since the position of the rib e and the positions of the brackets a and b are determined separately, the final position adjustment must be made between the rib e and the brackets a and b, which poses processing and strength problems.

In Fig. 1, A is the horizontal distance between the hinge centers of brackets a and b, B is the vertical distance, and C is the horizontal distance from the hinge center of bracket a to the end of vessel C. , C dimension will be determined after welding.

That is, when welding both end surfaces of brackets a and b to a pair of ribs e and end surfaces e' and e' of e, the mutual positional relationship varies and the root spacing t1 varies, causing a problem with the strength of the fillet. There are problems with processing and strength.

Therefore, as shown in FIG. 4, there is a known mounting method in which the brackets a and b are fixed by welding only to the bottom wall 4 and are not welded to the rib e.

In this case, α and β are actively increased.

However, with this structure, there are problems in terms of strength and rigidity because welding to the highly rigid rib e is not performed.

The present invention was devised in view of the above circumstances, and its purpose is to provide a bracket mounting structure that is superior in processing and strength when mounting a bracket between ribs.

Embodiments of the present invention will be described below with reference to FIG. 5 and subsequent figures.

A plurality of ribs 3 are fixed to the bottom wall 2 of the dump truck vessel 1 at intervals, and a hinge bracket 4 is located between the ribs 3.

The bracket 4 has a shape in which a pair of side walls 4a, 4a are connected in parallel to each other via a U-shaped connecting member 4b.

Note that a notch 5 is formed in the side wall 4a so as not to interfere with the rib 3.

When this bracket 4 is to be welded and fixed to the rib 3 and the bottom wall 2, both longitudinal end faces 4 of the bracket 4. ,4. and the end surface 31 of the rib 3, gaps S□, S2 are generated due to dimensional tolerances, etc., so this gap S1.
Welding defects occur due to S2.

Therefore, in the present invention, both end faces 41, 4□ of the bracket 4 are welded to the end face 31 of the rib 3 via the plate 6.7.

The plate thickness T of the plate 6.7 is the distance between ribs (dimension) Ll
The gap S, S due to the difference between and the bracket length L2
Determine by taking into account tolerances for plate thicknesses greater than l (including tolerances due to positioning).

The plate 6.7 also includes a pair of side walls 4 of the bracket 4.
A pair of grooves 8 and 9 into which grooves a and 4a fit are formed by cutting.

Then, the plates 6.7 are fitted to the pair of side walls 4a, 4a of the bracket 4 and welded to the end surfaces 31 of the rib 3, respectively, and the grooves 8, 9 and the side walls 4a, 4a are welded to form the bracket. 4 is welded and fixed to the end surface 31 of the rib 3 and the bottom wall 2.

In this way, even if the bracket 4 is unbalanced in the longitudinal direction (in the direction of the arrow X) between the ribs 3, 3, both ends of the bracket 4 and the plate 6.7 will not separate, and the welding strength will not be reduced.

Furthermore, processing is easy because the plate 6.7 is simply fixed by welding.

Further, the plate 6.7 is effective as a stress relief plate for the bracket 4 and the rib 3.3, and is very effective in terms of strength.

As described above, when the bracket 4, which is a sheet metal member with large dimensional tolerances, is welded and fixed between the ribs 3, the mounting structure is excellent in terms of strength and processing.

As described above, the present invention provides a bracket mounting structure that is excellent in terms of strength and workability when the bracket 4 is mounted between the ribs 3.

[Brief explanation of the drawing]

Fig. 1 is an overall view of the conventional example, Fig. 2 is a perspective view of the bracket, Fig. 3 is a detailed explanatory view of its mounting structure, Fig. 4 is a detailed explanatory view of another mounting structure, and Fig. 5 is a FIG. 6 is a front view showing an embodiment of the present invention, FIG. 6 is a plan view, and FIG. 7 is a front view of the plate. 3 is a rib, 4 is a bracket, 6, 7 is a plate, 8, 9
is a groove.

Claims (1)

[Scope of utility model registration request] In a mounting structure in which a pair of ribs 3, 3 are fixed to the bottom wall 2 at a predetermined interval, and a bracket 4 of a predetermined length is attached between the pair of ribs 3, 3, the length L of the bracket 4 is
2 is a pair of ribs 3, opposite end surfaces 3. , 3. The end surface 31 of each rib 3 is slightly smaller than the distance L□ between the ribs 3.
and both end faces 41 of the bracket 4.
2, respectively, and this gap S
1. The plate 6.7, which is thicker than S2 with tolerances taken into account, has grooves 8 and 9 into which both ends of the bracket 4 fit.
respectively, and attach this plate 6.7 to bracket 4.
The end surface 31 of each rib 3 is fitted and welded to both ends of the rib 3.
A bracket mounting structure characterized in that a plate 6.7 is welded to the bracket 4 and the bracket 4 is welded and fixed between a pair of ribs 3, 3.