JPH0356779Y2 - - 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. 5, the conventional device provides an exhaust passage C on the floor surface B of the target A on the reflection seat side, opens an intake port D at a desired position, covers the upper surface with a wire mesh E, and A duct and an exhaust fan (not shown in the drawing) were connected to the exhaust passage C to exhaust to the outside the smoke generated by the smoke and the harmful gases generated when the bullet hit the landing plate at the rear.

(Problem that the invention aims to solve) In the conventional device, the wire mesh E is effective in preventing falling objects from falling, but when the projectile penetrates the target A, target debris generated when the projectile penetrates the target A becomes clogged and exhaust There were disadvantages in that the suction efficiency decreased and target debris was also sucked into the exhaust passage C and accumulated therein.

[Structure of the idea]

(Means for Solving the Problems) The exhaust system for the indoor shooting range of the present invention has an exhaust system installed above the intake port D opened on the top surface of the exhaust passage C provided on the floor surface B on the reflection seat side of the target A. A top cover 3 having a larger area than the opening D is installed.

(Function) In the present invention, the upper part of the intake port D is covered with the upper surface 3.
Since the target debris is blocked by
can be prevented from entering.

(Example) To explain the first example in detail based on FIG. 1, pillars 1, 1, 2, and 2 are fixed to the four corners of the intake port D, respectively. The pillars 1, 1 on the target side are formed lower than the pillars 2, 2 on the anti-target side, and the upper cover 3, which has an area larger than the air intake port D, is fixed in an inclined state.

Everything else is the same as the conventional one, so the same reference numerals are given and the explanation will be omitted.

The first embodiment is constructed as described above, and since the upper part of the intake port D is covered with the upper surface covering 3, the generated target debris falls onto the upper surface covering 3 and is directly attached to the intake port D.
prevent it from invading.

In addition, since all four circumferences are open, gunpowder smoke can be reliably sucked in and discharged to the outside.

Next, a second embodiment will be explained based on FIG. 2.

In the first embodiment, a shielding plate 4 is fixed to the entire surface of the pillars 1, 1 on the target side to prevent target debris from entering. In addition, a lower shielding plate 5 is fixed only at the lower part between the pillars 2 and 2 on the anti-target side, and lower shielding plates 6 and 6 are fixed on both sides between the pillars 1 and 2 on both sides, respectively. Only the top is open to allow air to be taken in.

The rest is the same as the first embodiment, so the same reference numerals are given.
The explanation will be omitted.

The second embodiment is constructed as described above, and since the entire surface of the target side and upper side is covered with the shielding plate 4 and the upper cover 3, it prevents target debris from entering from the side from the target side. To reliably prevent entry into the intake port D.

In addition, since the lower parts of the anti-target side and both sides are covered with lower shielding plates 5, 6, 6, air is inhaled only from the upper part, which prevents target debris on the floor from being inhaled. Only air and smoke can be sucked in and discharged to the outside.

Next, the third embodiment will be explained based on FIG. 3. The lower shielding plates 6, 6 on both sides in the second embodiment
A wire mesh 7 is installed between the upper cover 3 and the upper cover 3, and a wire mesh 8 is installed between the lower shielding plate 5 and the upper cover 3 on the side opposite to the target to prevent various types of dust such as floating target debris from entering the intake port D. It is designed to prevent it.

All other configurations, operations, and effects are the same as those in the second embodiment, so the same reference numerals are given and explanations are omitted.

Next, a fourth embodiment will be described based on FIG. 4. The pillars 1, 1, 2, 2 are made to have the same height, and the top cover 3 is fixed horizontally. Then, a punching metal 9 is placed between the lower shielding plates 6, 6 and the upper cover 3 on both sides in the second embodiment, and the lower shielding plate 5 and the upper cover 3 on the side opposite to the target are placed.
A punching metal 10 is attached in between to prevent various types of dust such as floating target debris from entering the intake port D.

All other configurations, operations, and effects are the same as those of the second embodiment, so the same reference numerals are given and explanations are omitted.

[Effect of idea]

In the present invention, since the upper part of the intake port D is covered with the upper cover 3, it is possible to prevent the generated target debris from entering the intake port D, and prevent a decrease in suction efficiency due to clogging of the exhaust port. However, it is possible to prevent target debris from accumulating in the exhaust passage C.

[Brief explanation of the drawing]

Fig. 1 is a sectional view of a first embodiment of the exhaust system for an indoor shooting range according to the present invention, Fig. 2 is a sectional view of the second embodiment, Fig. 3 is a sectional view of the third embodiment, and Fig. 4. 5 shows a sectional view of the fourth embodiment, and FIG. 5 shows a sectional view of the conventional device. In addition, in the figure, 1 and 2 are pillars, 3 is a top cover, 4 is a shielding plate, 5, 6 is a lower shielding plate, 7, 8 is a wire mesh, 9, 1
0 is punching metal, A is target, B is floor, C
is an exhaust passage, D is an intake port, and E is a wire mesh.

Claims (1)

[Scope of utility model registration request] Exhaust passage C provided on floor surface B on the reflective seat side of target A
An exhaust system for an indoor shooting range, characterized in that a top cover 3 having a larger area than the intake port D is installed above the intake port D that is open on the top surface.