FASTENING STRUT FOR A FAN GUARD

Abstract

The present disclosure concerns a fastening strut for a fan guard with at least one first leg extending in a longitudinal direction, configured so as to reach across several cage bars of the fan guard, wherein the at least one first leg comprises a free lengthwise end, and in the region of the free lengthwise end of the at least one first leg a cube-shaped or cuboidal fastening element is secured laterally to the at least one first leg by integral bonding in a transverse direction running perpendicular to the longitudinal direction.

Claims

1. A fastening strut for a fan guard having a plurality of cage bars, comprising: at least one first leg extending in a longitudinal direction, configured so as to reach across several cage bars of the plurality of cage bars of the fan guard, wherein the at least one first leg comprises a free lengthwise end; and in the region of the free lengthwise end of the at least one first leg, a cube-shaped or cuboidal fastening element is secured laterally to the at least one first leg by integral bonding in a transverse direction running perpendicular to the longitudinal direction; and wherein the fastening element is larger in a vertical direction running perpendicular to the longitudinal and transverse directions than the at least first leg, and the fastening element sticks out in the vertical direction beyond the at least first leg.

2. The fastening strut according to claim 1, wherein the fastening strut has a second leg extending in the longitudinal direction substantially parallel to the first leg, while the first and second legs are formed as a single piece of hairpin shape and an open end of the hairpin shape defines the free lengthwise end.

3. The fastening strut according to claim 2, wherein the fastening element is arranged in the transverse direction between the first and second legs and joined by integral bonding to the first and second legs.

4. The fastening strut according to claim 1, wherein the fastening element is a solid body with at least one through hole extending in the vertical direction perpendicular to the longitudinal and transverse direction.

5. The fastening strut according to claim 1, wherein the fastening element has opposite plane parallel bearing surfaces in all directions.

6. The fastening strut according to claim 1, wherein the fastening element is larger in dimension in the longitudinal direction by at least a factor of 1.5 than in the transverse direction.

7. The fastening strut according to claim 1, wherein the fastening element is larger in the vertical direction running perpendicular to the longitudinal and transverse directions than the first and second leg, and the fastening element sticks out in the vertical direction beyond the first and second leg.

8. The fastening strut according to claim 2, wherein the first and second legs run in the transverse direction at a spacing and substantially parallel to each other in the longitudinal direction, and the fastening element is dimensioned in the transverse direction such that it entirely fills up the spacing.

9. The fastening strut according to claim 2, characterized in that the first and second legs have a round cross sectional shape.

10. The fastening strut according to claim 1, wherein the fastening element is flush with the free lengthwise end of the at least first leg.

11. A fan guard comprising: a plurality of spaced-apart cage bars; at least one first leg extending in a longitudinal direction and configured so as to reach across several cage bars of the plurality of cage bars, wherein the at least one first leg comprises a free lengthwise end; and in the region of the free lengthwise end of the at least one first leg, a cube-shaped or cuboidal fastening element is secured laterally to the at least one first leg by integral bonding in a transverse direction running perpendicular to the longitudinal direction; wherein the fastening element is larger in a vertical direction running perpendicular to the longitudinal and transverse directions than the at least first leg, and the fastening element sticks out in the vertical direction beyond the at least first leg.

12. The fan guard according to claim 11, wherein the free lengthwise end of the fastening strut having the fastening element sticks out beyond the cage bars in the longitudinal direction.

13. The fan guard according to claim 11, wherein the fastening strut has a second leg extending in the longitudinal direction substantially parallel to the first leg, while the first and second legs are formed as a single piece of hairpin shape and an open end of the hairpin shape defines the free lengthwise end.

14. The fan guard according to claim 13, wherein the fastening element is arranged in the transverse direction between the first and second legs and joined by integral bonding to the first and second legs.

15. The fan guard according to claim 11, wherein the fastening element is a solid body with at least one through hole extending in the vertical direction perpendicular to the longitudinal and transverse direction.

16. The fan guard according to claim 11, wherein the fastening element has opposite plane parallel bearing surfaces in all directions.

17. The fan guard according to claim 11, wherein the fastening element is larger in dimension in the longitudinal direction by at least a factor of 1.5 than in the transverse direction.

18. The fan guard according to claim 11, wherein the fastening element is larger in the vertical direction running perpendicular to the longitudinal and transverse directions than the first and second leg, and the fastening element sticks out in the vertical direction beyond the first and second leg.

19. The fan guard according to claim 13, wherein the first and second legs run in the transverse direction at a spacing and substantially parallel to each other in the longitudinal direction, and the fastening element is dimensioned in the transverse direction such that it entirely fills up the spacing.

20. The fan guard according to claim 11, wherein the fastening element is flush with the free lengthwise end of the at least first leg.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0018] FIG. 1, a fan guard in a perspective view;

[0019] FIG. 2, a fastening strut of the fan guard from FIG. 1 in top view; and

[0020] FIG. 3, a detail view X from FIG. 1.

[0021] The same reference numbers designate the same parts in all views.

DETAILED DESCRIPTION OF SPECIFIC EMBODIMENTS

[0022] FIG. 1 shows a fan guard 50 with a plurality of encircling cage bars 3 in a perspective view. The fan guard 50 has four fastening struts 1 distributed in the circumferential direction for mounting on a fan, between which shorter single-leg stiffening struts 30 are arranged, looking in the radial direction. The fastening struts 1 reach across all cage bars 3 and each time have a free lengthwise end at their radially inwardly lying sections. The configuration of the fastening strut 1 in this region is shown more closely in the detail view X in FIG. 3. Each of the fastening struts 1 is formed by two legs 11, 12, running in a hairpin shape. In the radially outward lying region of the fastening struts 1, the closed U-shaped section 2 sticks out radially beyond the fan guard 50 and provides a connecting point. The shape of the fastening strut 1 is adapted to the trend of the cage bars 3, so that the fastening struts 1 an outer section running substantially vertically, a radially running section adjoining the latter, and a slanting section adjoining the latter. Next to the slanting section is the free lengthwise section 5, in which the fastening struts run straight in the radial direction.

[0023] Referring to FIGS. 2 and 3, a fastening strut 1 is shown in further detail. The longitudinal direction of the fastening strut 1 runs from the closed section 2 to the free lengthwise end 5. Looking in the transverse direction perpendicular to this, a cuboid 13 made of solid material as arranged between the two legs 11, 12 as a fastening element and it is connected by integral bonding, such as through welding or soldering, to the two legs 11,12. The edges of the cuboid 13 are provided with chamfers. Looking in the transverse direction, a through hole 14 is made in the cuboid 13, by which the fastening strut 1 can be secured by a fastening means such as screws. The side surfaces 24, 25 of the cuboid 13 are planar in all directions. At the front side, the cuboid 13 is flush with the free ends of the legs 11, 12. In the vertical direction, the cuboid 13 sticks out beyond the legs 11, 12, which are round in cross section. The dimensioning of the cuboid 13 in the longitudinal direction corresponds to the free lengthwise section 5 in which the legs 11, 12 of the fastening strut 1 run straight in the radial direction. The cuboid 13 looking in the longitudinal direction has twice the length of a width looking in the transverse direction. Its height in the vertical direction corresponds to the width.