JPH077543Y2 - Resin tank fixing band - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial application] The present invention relates to a fixing band for a rectangular resin tank.

[Conventional technology]

Conventionally, a rectangular resin tank such as a sub tank or a power steering reservoir tank disclosed in Japanese Utility Model Application Laid-Open No. 57-193021 is attached to an engine cooling system of a vehicle or a hydraulic system of a steering device. As a mounting structure for a rectangular resin tank, a structure using a belt-shaped fixing band as shown in FIG. 7 is conventionally known.

FIG. 7 is a perspective view of a conventional fixing band. The fixing band 1 includes a U-shaped metal plate 5 having a horizontal fastening portion 3 and a set screw welded to both ends of the metal plate 5. As shown in FIG. 8, the set screw 7 is inserted into the mounting hole 11 of the bracket 9 and the nut 13 is screwed into the mounting hole 11 to attach the sub tank 15 made of a rectangular resin to the bracket 9. It is designed to be tightened and fixed. In FIG. 8, reference numeral 17 is a washer, and FIG. 9 is a perspective view of FIG.

[Problems to be solved by the device]

However, since the sub-tank 15 is made of resin, the sub-tank 15 is likely to be dented near the center of the upper surface of the sub-tank 15.
As shown in FIG. 8, when the fixing band 1 is tightened, the distribution of the force F exerted by the fixing band 1 on the sub-tank 15 is biased toward the corners having rigidity as compared with the vicinity of the central part, and the local concentration of such tightening force is in the sub-tank 15. It was not preferable in terms of durability.

In addition, since the sub-tank 15 has a higher coefficient of thermal expansion than the fixed band 1, as shown in FIG.
When 15 is contracted and a gap m is generated between the fixed band 1 and the upper surface thereof, and thus the gap m is generated between the sub tank 15 and the fixed band 1, the tightening force of the fixed band 1 is reduced by the sub tank 15. There was a risk that the sub tank 15 would rattle or fall out.

The present invention has been devised in view of such circumstances, eliminates the local concentration of the tightening force of the fixing band on the resin tank, and also reduces the rattling of the resin tank due to the shrinkage of the resin tank body at low temperature. An object is to provide a fixing band for a resin tank, which prevents the resin tank from falling off.

[Means for Solving the Problems]

A fixing band of a resin tank according to the present invention for achieving such an object is formed by forming a strip-shaped metal plate in a U-shape,
In the fixing band of the resin tank in which the set screw is provided at both ends of the U-shaped metal plate, the set screw is inserted into the mounting hole of the bracket, and the nut is screwed to fix the resin tank to the bracket. The tightening portion on the upper portion of the metal plate is curved in an arc shape toward the resin tank.

[Action]

When the resin band is tightened and fixed using the fixing band according to the present invention, the distribution of the tightening force to the resin tank can be made substantially uniform due to the spring characteristic due to the deformation of the tightening portion on the upper portion of the metal plate.

Even if the resin tank is shrunk due to low temperature, the spring characteristics of the tightening part of the curved metal plate exert a tightening force on the resin tank, and as a result, the resin tank does not rattle and is securely fixed to the bracket. To be done.

〔Example〕

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
The same elements as those of the conventional example are indicated by the same reference numerals.

1 to 4 show a first embodiment of the present invention. In FIG. 1, reference numeral 19 is a fixed band according to this embodiment, and the fixed band 19 is the same as the conventional example shown in FIG. Similarly, the fixing band according to the present embodiment is composed of a strip-shaped metal plate 21 and set screws 7 welded to both ends of the metal plate 21.
After forming the metal plate 21 into a U-shape, the sub-tank 15 is provided with an upper tightening portion 23 that is pressed against the upper surface of the sub-tank 15.
It is characterized by being curved in an arc shape toward the side. Then, as shown in FIGS. 2 to 3, when the sub-tank 15 is fastened and fixed to the bracket 9 with the fixing band 19, the sub-tank is caused by the spring characteristic of the metal plate 21 due to the deformation of the curved shape (tightening portion 23). Even if the distribution of the tightening force F to 15 becomes uniform, and even if the sub tank 15 contracts due to low temperature, the spring force of the curved tightening portion 23 causes the tightening force F to act on the sub tank 15.

Since the fixing band 19 according to the present embodiment is configured as described above, in order to attach the sub-tank 15 using such fixing band 19, first, as shown in FIG.
Is inserted into the mounting hole 11 of the bracket 9, and the nut 13 is screwed onto the set screw 7 as shown in FIG.
Is pressed against the upper surface of the sub-tank 15 and the sub-tank 15 is fixed to the bracket 9 by tightening.

Thus, when the sub-tank 15 is clamped and fixed using the fixing band 19 as described above, the distribution of the tightening force F to the sub-tank 15 is shown in FIG. 3 due to the spring characteristic due to the deformation of the tightening portion 23 as described above. As a result, it becomes uniform. Further, as shown in FIG. 4, even if the sub-tank 19 contracts due to low temperature, the tightening force F acts on the sub-tank 15 due to the spring characteristic of the curved tightening portion 23, so that the sub-tank 15 does not rattle to the bracket 9. It will be fixed by tightening.

As described above, according to this embodiment, the distribution of the tightening force F with respect to the sub tank 15 is made uniform by the elastic force of the tightening portion 23 that is curved in an arc shape. The tightening force does not concentrate on the local area, and the sub tank
15 durability has been improved. Further, even if the sub-tank 15 contracts due to low temperature, this embodiment uses the elastic force of the tightening portion 23 to tighten and fix it, so that there is no possibility that the sub-tank 15 rattles or falls off as in the conventional case.

FIG. 5 and FIG. 6 show a second embodiment of the present invention, in which the power steering reserve tank 25 made of resin is fixed together with the sub tank 15 by one fixing band 27. The fixing band 27 according to the example has a central portion of a tightening portion 29, which is longer than the fixing band 19, curved toward the sub tank 15 and the power steering reserve tank 25 in an R shape, and tightens as shown in FIG. By the elastic force due to the deformation of the tightening surface 29 when attached and fixed, the distribution of the tightening force to the sub-tank 15 and the power steering reserve tank 25 is made uniform.
When contracted, the elastic force of the tightening surface 29 is used to
It is intended to be tightened and fixed in 5. Since the configuration excluding the devised portion is the same as that of the first embodiment, the description thereof is omitted here.

Thus, also in this embodiment, as in the first embodiment,
It has the advantage that the intended purpose can be achieved, and that the two tanks 15 and 25 can be easily tightened and fixed by one fixing band 27.

[Effect of device]

As described above, according to the present invention, a strip-shaped metal plate is formed in a U-shape, and set screws are provided at both ends of the U-shaped metal plate. In the fixing band of the resin tank in which the resin tank is tightened and fixed to the bracket by screwing, the tightening portion of the upper part of the metal plate is curved in an arc shape toward the resin tank. Due to the elastic force of the bent tightening portion, the distribution of the tightening force with respect to the resin tank is made substantially uniform, and as a result, the local concentration of the tightening force is eliminated, so that the durability of the resin tank can be improved.

Further, even if the resin tank is shrunk due to low temperature, the elastic force of the tightening portion is used for tightening and fixing, so that there is no risk of rattling or dropping of the resin tank.

[Brief description of drawings]

1 is a perspective view of a fixing band according to a first embodiment of the present invention, FIG. 2 is a side view showing a mounting method of a sub tank by the fixing band, and FIG. 3 is a distribution state of a tightening force applied to the sub tank. A side view, FIG. 4 is a side view showing a tightening state of the fixing band when the sub tank is contracted, and FIGS. 5 and 6 are two resin tanks tightened by using the second embodiment of the present invention. FIG. 7 is a side view of a conventional fixing band, FIG. 8 is a side view of a sub-tank mounting structure using the conventional fixing band, and FIG. 9 is a perspective view of FIG. FIG. 10 is a side view of a conventional resin tank mounting structure with the sub tank contracted. 7 …… Set screw 9 …… Bracket 15 …… Sub tank 19,27 …… Fixing band 21 …… Metal plate 23,29 …… Tightening part 25 …… Power steering reserve tank.

Claims (1)

[Scope of utility model registration request] 1. A strip-shaped metal plate is formed in a U shape, set screws are provided at both ends of the U-shaped metal plate, and the set screw is inserted into a mounting hole of a bracket and a nut is screwed. A fixing band for a resin tank in which a resin tank is clamped and fixed to a bracket according to the above, wherein the tightening portion on the upper portion of the metal plate is curved in an arc shape toward the resin tank.