JPH0356780Y2 - - Google Patents

Description

[Detailed description of the invention] [Purpose of the invention] (Field of industrial application) The present invention relates to an exhaust system for an indoor shooting range.

(Prior art) As shown in Fig. 4, the conventional device provides an exhaust passage C on the floor surface B on the reflector side of the basic shooting target A, opens an intake port D at a desired position, and covers the upper surface with a wire mesh E. cover,
A duct (not shown) and an exhaust fan (not shown) were connected to the exhaust passage C to exhaust to the outside the smoke generated by the smoke and the toxic gases generated when the bullet hit the rear bullet receiver.

In the case of the above device, although the wire mesh E has the effect of preventing falling objects from falling, the fired bullets do not reach the target A.
There were disadvantages in that the target debris generated when passing through the exhaust passage C became clogged, reducing the exhaust suction rate, and target debris was also sucked into the exhaust passage C and accumulated therein.

(Problem to be solved by the invention) Therefore, the inventor thought of covering the upper surface of the intake port D with a top cover to prevent the intrusion of target debris. , a new problem arose in that the upper cover interfered with shooting.

[Effect of idea]

(Means for Solving the Problems) The exhaust system for an indoor shooting range of the present invention has an exhaust passage 3 provided in the floor surface on the target side of the collection groove 2, and connects the collection groove 2, the exhaust passage 3, and the side wall 4. They are communicated through an intake hole 5 that passes through them.

(Function) In the present invention, exhaust air is sucked through the intake hole 5 provided in the side wall 4 of the bullet collecting groove 2, and the exhaust air is discharged without interfering with shooting.

(Embodiment) A first embodiment of the present invention will be described in detail with reference to FIG. 1. An exhaust passage 3 is provided in the floor surface B in parallel with the bullet collection groove 2 provided along the landing receiver 1. This exhaust passage 3 is formed by a pipe duct, and the exhaust passage 3
An intake cylinder 6 forming an intake hole 5 is provided to protrude from the side wall 4 toward the bullet collection groove 2 so as to penetrate through the side wall 4.

In addition, on the firing point side of the exhaust passage 3, a live ammunition application shooting target 7 is provided in a freely undulating manner, a live ammunition application shooting target 7 is provided in an undulating manner, and a basic shooting target 8 similar to the conventional one is provided on the firing point side of the live ammunition application shooting target 7. It is designed so that it can be raised and lowered and rotated. Note that 9 in the figure is a barrage.

The exhaust passage 3 is connected to a duct and an exhaust fan to perform exhaust, as in the conventional case.

The first embodiment is constructed as described above, and the generated smoke or harmful gas generated when the bullet hits the landing receiver 1 is sucked through the intake hole 5 and is then transferred to the exhaust passage 3.
and is discharged to the outside.

Next, the second embodiment will be explained based on FIGS. 2 and 3. The exhaust passage 3 is formed by pouring concrete around the periphery, penetrates the side wall 4, and connects the intake pipe 6 to the collection groove 2.
Open inward. Then, a cover 11 having a circumferential wall 10 protruding toward the exhaust passage 3 on the outer periphery is attached to the intake pipe 6.
The exhaust gas is sucked from between the intake pipe 6 and the peripheral wall 10 of the cover 11 as shown in FIG.
2, . . . is introduced into the intake hole 5 from between the two and sent to the exhaust passage 3.

Everything else is the same as in the first embodiment.

In the second embodiment, since the exhaust gas is refracted and sent to the intake hole 6, it is possible to reliably prevent target debris and the like from entering.

[Effect of idea]

In the present invention, the intake hole 5 opened in the bullet collecting groove 2
Since the exhaust gas is sucked from the exhaust passage 3, generated target debris will not directly enter, and therefore debris etc. can be prevented from accumulating in the exhaust passage 3.

Also, since there are no parts that protrude above the floor,
It does not get in the way of shooting, and there is no chance of damage.

[Brief explanation of drawings]

Fig. 1 is a sectional view of the first embodiment of the exhaust system for an indoor shooting range according to the present invention, Fig. 2 is a sectional view of the main parts of the second embodiment, and Fig. 3 shows the relationship between the intake pipe and the cover. FIG. 4 shows a cross-sectional view of a conventional device. In the figure, 2 is a collection groove, 3 is an exhaust passage, 4 is a side wall, and 5 is an intake hole.

Claims (1)

[Scope of utility model registration request] An exhaust passage 3 is provided in the target side floor surface of the bullet collection groove 2,
An exhaust system for an indoor shooting range, characterized in that a bullet collection groove 2 and an exhaust passage 3 are communicated through an intake hole 5 penetrating a side wall 4.