JPS6019952Y2 - Flexible fittings for split cooling fan shrouds - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION This invention relates to a visibility joint for an automotive split cooling fan shroud.

Conventionally, fan shrouds for automotive cooling fans have generally been attached to the rear of the radiator and extend from the rear of the radiator to the cooling fan so that the cooling fan is located inside. However, fan shrouds with this type of structure have a large gap between the shroud and the fan to prevent contact between the fan shroud and the cooling fan due to engine vibration or vehicle shaking, and the radiator Segmented cooling fan shrouds have been provided because they allow less air to pass through, reducing the cooling effectiveness of the radiator.

That is, this split cooling fan shroud includes a radiator side shroud section, an engine side shroud section, and a thick annular sealing member made of a soft elastic material that is attached between these shroud sections so as to seally connect these shroud sections. The radiator side shroud part and the engine side shroud part are connected in a sealed manner so that the cooling effect of the radiator is not reduced.However, the installation work is done by fitting one of the annular seal members into the engine side shroud part in advance. After fixing with a circular clamp, the other part of the annular seal member is fitted into the radiator side shroud part and fixed with a circular clamp as well, which is extremely difficult and reduces work efficiency, especially during inspection and maintenance. This was a factor in the decline.

The purpose of this invention is to create a flexible joint for a split type cooling fan shroud that can be easily installed and removed during inspection and maintenance, and that can reliably connect the engine side shroud and the radiator side shroud. On offer.

In response to these issues, the split-type cooling fan shroud visibility joint of this invention covers approximately half the circumference between the engine side shroud and the radiator side shroud, and the a seam located approximately on the outer periphery of each half of the side shrouds and projecting onto the outer surface of the seam in the radial direction of the shroud;
A joint half made of a flexible material consisting of a pair of ribs integrally formed on the front and rear side edges in the axial direction of the shroud, and the remaining half between the engine side shroud and the radiator side shroud. A joint located on the outer periphery of the remaining half of each of the engine side shroud and the radiator side shroud so as to cover the circumferential direction of the The shroud has a pair of joint halves made of a flexible material that are integrally formed on the front and rear side edges in the axial direction, and these joint halves are attached to the engine side and the radiator. a plurality of clamps that attach the joint halves to the engine side and radiator side shrouds by wrapping around the outer periphery of the side shrouds and hooking onto the ribs of the side shrouds so as to sealingly connect the engine side and radiator side shrouds to each other; It consists of

Hereinafter, preferred specific examples of the flexible joint for a split type cooling fan shroud according to this invention will be described with reference to the drawings.

Figures 1 to 4 show a specific example 1° of the flexible joint of this invention applied to a split cooling fan shroud 32 of a cab-over type truck.

The split cooling fan shroud 32 is disposed between the engine 30 and the radiator 31 and includes an engine side shroud 33 and a radiator side shroud 34.

The radiator side shroud 34 is fixed to the radiator frame 36 by screws, and the engine side shroud 33 is fixed to the engine 30 by a bracket 35.

Those engine side and radiator side shrouds 33.
A flexible joint 10 is used to connect 34 to each other in a sealed manner.

The flexible joint 10 includes a joint half part 11 made of a flexible material, and another joint half part 12 made of a flexible material.
Multiple clamps 13. . . . , 13, the joint half-split portion 11 covers approximately the lower half of the circumference between the engine side shroud 33 and the radiator side shroud 34, and the joint The half portion 12 covers the upper remaining half circumference between the engine side shroud 33 and the radiator side shroud 34, and the clamps 13. ... Song, 13 is the shroud 33.34 and the joint half part 11.
12 is fixed, and its engine side and radiator side shrouds 33, 34 are hermetically connected.

The joint half-split part 11 has a structure consisting of a joint 14 having a substantially semicircular cross section and a pair of ribs 15 and 16 protruding from the outer surface of the joint 14, and is molded from synthetic rubber. ing.

The joint strip 14 is located across approximately half the outer periphery of each of the engine side shroud 33 and the radiator side shroud 34 in order to sealably connect the engine side shroud 33 and the radiator side shroud 34, Further, the ribs 15, 16 are projected from the outer surface of the joint 14 in the radial direction of the shrouds 33, 34, and the axis of the shroud 33, 34 is aligned with the assembly of the joint 14. It is integrally formed on the front and rear side edges in the direction.

In addition, the other joint half-split portion 12 is molded from synthetic rubber and has the same structure as the joint half-split portion 11.
A seam 14 having a substantially semicircular cross section and its seam 1
4 and a pair of ribs 15 and 16 protruding outward.

The clamp 13. As can be seen from Figures 3 and 4, 13 has a hook-shaped tip and is made to hook the ribs 15 and 16 of the joint halves 11 and 12. .

Also, the clamp 13. . . . , 13 has a bolt hole (not shown) at its base, and bolt 17.・・・・・・
...Radiator side and engine side shroud 3 at 17
It is structured to be fixed to 3.34.

Next, to explain how to attach the flexible joint 10 configured as described above, first, the joint half portion 11 is straddled over the circumference of the lower half of the engine side shroud 33 and the radiator side shroud 34. 3 and 4, the clamp 13. ...
..., the hook-shaped tips of 13 are located inside the ribs 15, 16, and the engine side and radiator side shroud 3
3.34 pre-welded nuts 18.・・・・・・、
Bolt 17 to 18. 17 is screwed in to fix the clamps 13, . Fix to the radiator side shroud 33, 34.

Similarly, the joint half portion 12 is located across the upper half circumference of the engine side and radiator side shrouds 33, 34, and the clamp 13.・・・
Nuts 18., 13 with their hooked tips located inside the ribs 15.16 and pre-welded to their engine and radiator side shrouds 33.34.・・・・・・
, bolt 17 to 18. ...screw the clamp 13. ..., 13 is fixed to its engine side and radiator side shrouds 33, 34, and at the same time, its joint half portion 12 is fixed to its engine side and radiator side shrouds 33, 34.

As such, the flexible joint 10 is attached to its engine side and radiator side shrouds 33, 34 and its engine side and radiator side shrouds 33, 34.
, 34 are connected in a sealed manner.

Such attachment is achieved by clamping the ribs 15, 16 to the clamps 13. . . ., the hooked tip of 13 is hooked, and the clamp 13.・・・・・・、
13 without strongly pinching the outer periphery of the joint half-split portion 11.12, the engine-side shroud 33 and the radiator-side shroud expand and contract due to the elasticity of the joint half-split portion 11.12 due to vibrations of the engine 30, etc. 34 within the permissible range, that is, the clamp 1 is attached to the ribs 15 and 16 of the joint half parts 11 and 12.
Since the hook-shaped tip of 3°...13 is allowed to slide until it is caught, damage to the half-split parts 11 and 12 of the joint can be prevented even during long-term use.

FIG. 5 shows a modified embodiment 20 of the flexible joint of this invention.

This flexible joint 20 includes the ribs 15.16 of the joint halves 11.12 of the flexible joint 10 described above and the clamps 13. . . , 13 is modified, and components corresponding to the configurations of the unmodified flexible joint 10 are given the same reference numerals and their explanations will be omitted.

Joint half portion 21 in this flexible joint 20.
22, the ribs 24, 25 integrally form lips 26, 27 protruding in directions facing each other at the top, and the clamp 2
3. ..., 23 has a hook-shaped tip bent in an abbreviated shape, and the hook-shaped tip bent in an abbreviated shape is hooked on the rib with a lip 24° 25, and the joint half-split part 21, 22 by its engine side and radiator side shrouds 33,34.

The aforementioned joint half-split portion 11. 12.21.22 was molded from synthetic rubber, but it is of course possible to mold from synthetic resin.

According to this invention described above, the joint is constituted by a half-split joint made of a flexible material and a half-split joint made of another visible material, and these half-split joints are connected to a joint band and a pair of ribs. As a result, a large number of clamps have their hooked tips located inside their ribs, and the joint halves are attached to the engine side and radiator side shrouds, so that the engine side shroud and the radiator side shroud are securely connected. The installation is easy, and inspection and maintenance can be easily performed by removing the upper half of the joint, increasing work efficiency. , along with the expansion and contraction due to the elasticity of the joint halves,
Allow the clamp to slide until the hooked tip of the clamp hooks onto the rib within the tolerance between its engine side shroud and its radiator side shroud, and the clamp connects the joint halves to its engine and radiator side shrouds. Since it is attached to the
Damage to the half-split portion of the joint is prevented.

[Brief explanation of the drawing]

FIG. 1 is a side view of the visible joint for the split type cooling fan shroud of this invention with the installation in front; FIG. 2 is a side view of the flexible joint of FIG. 1 with the installation in the rear; 3 is a partially enlarged perspective view of the flexible joint shown in FIG. 2, FIG. 4 is a cross-sectional view of the flexible joint shown in FIG. 3, and FIG. 5 is a modified version of this invention. FIG. 2 is a cross-sectional view of a flexible joint for a split cooling fan shroud. 11.12, 21.22... Flexible material joint half part, 13, 23... Clamp, 14
・・・・・・Tie band, 15.16, 24.25...
...Rib, 33...Engine side shroud, 3
4...Radiator side shroud.

Claims (1)

[Scope of utility model registration claim] Engine side shroud? A joint located on the outer periphery of approximately half of each of the engine side shroud and the radiator side shroud, covering approximately half the circumference between the shroud and the radiator side shroud, and the joint in the radial direction of these shrouds. A joint half portion made of a flexible material consisting of a pair of ribs integrally formed on the front and rear side edges in the axial direction of the shroud so as to protrude from the outer peripheral surface of the belt, and the engine side shroud. In the radial direction of a joint located on the outer periphery of each of the remaining halves of the engine side shroud and the radiator side shroud so as to cover the remaining half circumferential portion between the shroud and the radiator side shroud. , another joint half portion made of a flexible material consisting of a pair of ribs integrally formed on the front and rear side edges in the axial direction of the shroud so as to protrude from the outer surface of the joint; While wrapping the joint halves around the outer peripheries of the engine and radiator shrouds, hook them onto the ribs so as to seal the engine and radiator shrouds together, and then attach the joints to the engine and radiator shrouds. A flexible fitting for split cooling fan shrouds that includes multiple clamps to attach the halves.