JPH077100Y2 - Tool box for trucks - Google Patents

Description

[Detailed Description of the Invention] [Object of the Invention] (Industrial field of application) The present invention is excellent in cost specific strength and weight specific strength for being used by being attached to the lower part of the loading platform of a truck, and from the gap of the lid. A tool box for trucks to prevent rainwater from entering the box.

(Prior Art) The above-mentioned truck tool box is conventionally made of wood or an iron plate.

(Problems to be solved by the invention) However, since the number of manufacturing steps of a wooden product increases, it is not always possible to manufacture it inexpensively. It was easy to break into.

In addition, iron is not preferable in terms of fuel economy because it is easily rusted and the weight is heavy.

Therefore, it is conceivable to use a plastic that is superior in terms of moldability, corrosion resistance, and lightness.
Fiber-reinforced plastic (FR) is one of the plastics with the best cost-specific strength to secure the necessary strength.
Even if P) was used, the thickness of the box was considerably thick and there was a problem that material costs were high.

Therefore, the object of the present invention is to improve the cost-specific strength, that is, the strength of the product made by spending a predetermined cost, and the light-weight and heavy-weight specific strength. It is to provide a tool box for trucks that does not get inside.

[Means for Solving the Problem] (Means for Solving the Problems) A tool box for a truck according to the present invention for achieving the above object comprises a reinforcing core material in which minute closed cell spheres 13 are mixed in a fiber mat 12. 11 is made of composite reinforced plastic embedded in fiber reinforced plastic, the top surface 2a of the tool box is formed into a mountain shape that slopes to the left and right, and the bottom edge of the opening 3 on the front side 4 is attached via a hinge 5, and an upper surface portion of a flange-shaped peripheral edge portion 4a provided around the back surface of the door 4 is formed so as to be flush with the top surface 2a and at the edge portion of the opening portion 3. Is configured to form a gutter 6a that prevents rainwater and the like from entering the box.

(Operation) A tool box for a truck is a composite reinforced plastic in which a fiber reinforced plastic 10 is further embedded with a fiber mat 12 containing micro closed cell spheres 13 (so-called micro balloons) as a reinforcing core material 11. It is composed of
The cost specific strength is significantly improved as compared with the conventional one, and the weight specific strength is also increased.

Further, the top surface 2a of the tool box is formed in a mountain shape inclined to the left and right sides, and the upper surface portion of the flange-shaped peripheral portion 4a provided around the back surface of the door 4 is formed flush with the top surface 2a. At the same time, a gutter 6a is provided at the edge of the opening 3 to prevent rainwater from entering the box. You can surely eliminate the risk of water entering the box through the door gap.

(Embodiment) An embodiment of the present invention will be described below with reference to the drawings.

Reference numeral 1 denotes a tool box for trucks according to the present invention, which is attached and fixed to a side surface of a chassis B at a lower portion of a loading platform of a truck A as shown in FIG.

The box main body 2 of the truck tool box 1 has a substantially rectangular parallelepiped shape, and its top wall 2a has a mountain shape which is inclined to the left and right with a central portion as a boundary.

The box body 2 is provided with an opening 3 on the side surface which is the front side in the state where the box body 2 is attached as described above, and a lid 4 is attached to the protruding lower edge 3a protruding forward at the lower edge thereof. Is attached via a hinge 5 in a door-like manner so as to be vertically rotatable. Lid 4
A peripheral portion 4a which forms the edge of the tray is integrally provided on the peripheral edge of the. Both the box body 2 and the lid 4 are made of a composite reinforced plastic which will be described later.

Reference numeral 6 denotes a flange provided around the front surface of the opening 3, and as shown in FIG. 3, a U-shaped gutter opened laterally outward of the opening 3.
6a is formed. And when the lid 4 is closed,
As shown in FIG. 3, the end surface of the peripheral edge portion 4a of the lid 4 is adapted to abut on the inner side wall surface having a higher height among the both side walls of the gutter 6a. 7 is a packing, but this packing is not necessary. 8 is a latch-type stopper of the lid 4,
Reference numeral 9 is a metal fitting for locking the lid 4.

Next, a method of manufacturing the box body 2 and the lid 4 will be described.

The box body 2 and the lid 4 are made of a composite reinforced plastic having a special structure in which the reinforcing core material 11 is embedded in a sandwich shape inside the FRP10 layer as shown in the partial cross section of FIG. Is made.

In this embodiment, the reinforcing core material 11 has a structure in which a microballoon 13 made of vinylidene chloride-acrylonitrile copolymer is mixed in a polyester fiber mat 12.

Therefore, be sure to explain the manufacturing method of the reinforcing core material 11, the polyester fiber mat 12 arranged in the required width and thickness is impregnated with vinylidene chloride-acrylonitrile copolymer at a predetermined content rate, and then heated. When heated by the apparatus to about 120 ° C., the vinylidene chloride-acrylonitrile copolymer foams into micro-balloons 13 in the form of micro closed cells. Next, the fiber mat 12 is passed between rollers to be compressed to increase the bulk specific gravity, thereby providing a porous structure as a combined body of the microballoon 13 having high pressure resistance and the fiber mat 12 having excellent tensile strength. A reinforcing core material 11 is obtained.

Next, in order to prepare the box body 2 and the lid 4 made of the composite reinforced plastic in which the reinforcing core material 11 is embedded in the FRP10 layer, respective molds are prepared, and first, the well-known hand layup is performed. Method, spray-up method, etc., on the mold surface of the lower mold, a FRP forming layer of a predetermined thickness, that is, in this case, a glass fiber layer impregnated with an uncured polyester resin is applied, and the reinforcing core material 11 is overlaid thereon. In addition, the FRP forming layer is applied again to have a predetermined thickness, and finally the upper mold is pressed against the upper surface of the reinforcing core material 11. Penetrate into. Then, when the resin is cured in this state, the box body 2 and the lid 4 made of the composite reinforced plastic having a desired shape are completed.

The box body 2 may be formed by separately forming the rear wall portion and the peripheral wall portion and then combining them by an adhesive method. Also, the flange 6 may be separately formed, and the edge of the opening 3 of the box body 2 may be formed. It may be joined to the part.

Next, the operation of the above configuration will be described.

The truck tool box 1 is fixed to the chassis B of the truck A as shown in FIG. 5 by a mounting bracket (not shown) as described above. In this state, naturally, rainwater, car wash water, etc.
Since it penetrates into the gap between the lid and the lid 4,
There was a high possibility that these water would enter the box and wet the tool, damaging the tool without noticing it.

However, according to the present invention, the gutter is provided around the opening 3 of the box body 2.
Since the flange 6 provided with the 6a is circulated, the water that has entered the above-mentioned gap will not reach the upper edge of the opening 3 of the box body 2 as can be understood by referring to FIG. 1 and FIG. It is positioned and received by the gentle mountain-shaped gutter 6a, diverts the inside of this groove toward both left and right ends, and further flows down in the downward facing gutters 6a connected to each of these ends, and falls directly under the box. .

Since the box body 2 and the lid 4 are made of plastic, which is different from the conventional wooden or iron products, the drawbacks of the conventional ones such as a large number of manufacturing steps and easy corrosion are eliminated.

However, as a plastic, in FRP10 which is particularly excellent in cost-specific strength, further, as a reinforcing core material 11, a fiber mat 12 mixed with microballoons 13 is embedded, using a special composite reinforced plastic. Therefore, it is possible to make a tool box 1 for trucks that is more cost effective than FRP.

Moreover, the reinforcing core material 11 contains the microballoons 13 mixed therein, and although the bulk specific gravity is considerably small, the microballoons 13 have excellent compressive strength.
A light and strong truck tool box 1 having a strength-to-weight ratio far superior to that made by itself can be obtained.

Therefore, according to the above configuration, not only the corrosion resistance is provided, but also the manufacturing cost can be reduced, the weight can be reduced as compared with the conventional one, and the effect of contributing to the reduction of the fuel cost of the truck can be achieved. Obtained at the same time.

In the above configuration, the gutter 6a is provided all around the opening 3, but the gutter 6a at the bottom edge may be omitted. For example, the opening 3
It is also possible to omit the gutters 6a on both sides by slightly tilting the inside of the box downward.

The shapes of the box body 2 and the lid 4 are not limited to those shown in the figure.

[Effects of the Invention] As is clear from the above description, the tool box for a truck of the present invention has excellent practical effects as listed below.

(B) The material cost and truck fuel consumption can be saved because the weight can be sufficiently reduced while having the strength to withstand the weight of heavy tools.

(B) It is possible to surely eliminate the risk of intrusion into the box through the gap between the doors even when the pressurized car wash water is sprayed as well as the lateral rain while the vehicle is traveling.

(C) Therefore, leave it in the tool box that you do not use frequently without noticing that rainwash car wash water has invaded, and the important tool lying on the bottom of the box will rust without notice. The fear of getting rid of it disappears.

(D) Then, the serious inconvenience that the tool inside the box, which originally has a strong character for an emergency, is useless at the essential point, is solved.

[Brief description of drawings]

1 shows an embodiment of the present invention. FIG. 1 is a perspective view showing a state in which a lid is opened, FIG. 2 is an enlarged partial sectional view of a box body and a wall constituting the lid, and FIG. FIG. 4 is a partial vertical side view showing a state in which the lid is closed, FIG. 4 is a perspective view in which the lid is closed, and FIG. 5 is a sketch of a state in which the tool box is attached to the truck. Code table 1 …… Truck tool box 2 …… Box body 3 …… Opening 4 …… Lid, 4a …… Perimeter 6 …… Flange, 6a …… Gutter 8 …… Stopper, 9 …… For locking Metal fittings 10 …… FRP (fiber reinforced plastic) 11 …… Reinforcing core material 12 …… Polyester fiber mat (fiber mat) 13 …… Micro balloons (small closed cell spheres)

Claims (1)

[Scope of utility model registration request] 1. A composite reinforced plastic obtained by embedding a reinforcing core material 11 in which minute closed cell spheres 13 are mixed in a fiber mat 12 in a fiber reinforced plastic, and the top surface 2a of a tool box. Is formed in a mountain shape that inclines to the left and right, and the door 4 is attached to the bottom edge of the opening 3 on the front side via the hinge 5, and the flange-shaped peripheral edge 4a is provided around the back of the door 4. A tool box for trucks, characterized in that an upper surface is formed flush with the top surface 2a, and a gutter 6a for preventing rainwater and the like from entering the box is formed at the rim of the opening 3.