JP2531834Y2 - Baffle - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial application field) The present invention relates to a cylindrical baffle that is incorporated into a vehicle body and introduces outside air into a vehicle interior.

(Background Art) An opening is provided at the bottom of the baffle in order to introduce outside air into the vehicle interior. Foreign matter such as leaves of the tree may enter the vehicle interior together with the outside air through the opening.

Therefore, as shown in FIG. 7, a net c made of expanded metal or the like is disposed in one opening b of a cylindrical body a made of a metal plate, and the net c is supported by a spot welded portion d. Known baffles are known.

However, in order to manufacture the baffle, a metal plate is press-formed to form a bottomed tubular body a, and the bottom of the tubular body a is pierced to form an opening b in the bottom. This requires a step of providing and a step of spot-welding a mesh member c having a predetermined shape to the opening b, which involves many working steps and a high cost because the baffle is composed of two parts.

Therefore, recently, at one end, a strip-shaped first crosspiece extending in one direction and a strip-shaped second crosspiece extending in a direction intersecting with the first crosspiece are provided at the other end. There is proposed a bottomed cylindrical metal baffle having a bottom formed by piercing and having a bottom formed by introducing outside air from one end to the other end. The metal baffle reduces the number of working steps and costs by forming a lattice at the bottom of the tubular body integrally with the tubular body.

(Problems to be Solved by the Invention) However, as described above, in order to form a grid on the bottom of the tubular body by piercing, the first bar and the second bar are required.
In both of the crosspieces, a width must be ensured so that the cutting edges for piercing do not interfere with each other. For this reason, the width of the first and second bars must be increased, and the introduction of outside air is hindered by the width portions of the first and second bars, so that a satisfactory amount of outside air cannot be obtained. A new problem has arisen.

In view of the above, an object of the present invention is to make it possible to sufficiently introduce outside air while reducing the number of work steps and the cost.

(Means for Solving the Problems) In order to achieve the above object, according to the present invention, the width direction of at least one of the first and second bars obtained by piercing is matched with the direction of introduction of outside air. It is to let.

Specifically, a solution taken by the present invention is to provide a band-shaped first bar having an opening at one end and extending in one direction and a band extending in a direction intersecting with the first bar at the other end. The grid consisting of a second bar having a bottom shape formed by piercing and having a bottomed cylindrical metal baffle for introducing outside air from one end side to the other end side is assumed to be the first type. At least one of the crosspiece and the second crosspiece is formed by bending a flat lattice-shaped body formed by piercing a metal flat plate so as to twist in a substantially right angle direction. Are formed so that the thick surface of the crosspiece faces the direction of introduction of outside air.

(Operation) According to the above configuration, at least one of the first and second bars is formed so that its thick surface is opposed to the direction in which outside air is introduced. It matches the introduction direction. For this reason, even a crosspiece having a wide width formed by piercing does not hinder the introduction of outside air.

(Embodiment) Hereinafter, an embodiment of the baffle A according to the present invention will be described with reference to the drawings.

1 to 3 show a baffle A incorporated in a vehicle body for introducing outside air into a vehicle interior. The baffle A is made of a metal plate having a length enough to prevent passage of rain. It is formed in a cylindrical shape, and has a bottom portion 1 at one end side, and a flange 2 having a U-shaped cross section is provided at a peripheral edge portion at the other end side.

On the bottom 1 of the baffle A, for example, two vertical bars 31 as a first bar extending in the vertical direction in FIG. 1 and a second bar extending in the left-right direction orthogonal to the vertical bar 31 are provided. A grid 3 composed of seven horizontal rails 32 is provided, and a plurality of openings 4 are formed in the bottom 1 by the grid 3, and outside air is introduced into the vehicle interior from the openings 4.

The vertical bar 31 is in the shape of a strip formed on the same plane as the bottom 1, and a surface 31 a in the width direction thereof is opposed to the direction in which outside air is introduced.

On the other hand, the horizontal beam 32 has a band-shaped central portion 32a and the central portion 32a.
And the narrow side edges 32b connecting the vertical bar 31 and the thick portion 32c of the central portion 32a faces the direction of introduction of outside air,
The surface in the width direction is opposed to the introduction direction of the outside air.

As a result, the width direction of the central portion 32a of the horizontal rail 32 coincides with the direction of introduction of outside air, so that it does not hinder the introduction of outside air into the vehicle interior.

Hereinafter, a method of forming the baffle A according to the embodiment will be described with reference to FIGS.

First, as shown in FIG. 4, a metal flat plate is drawn and formed into a bottomed square cylindrical body 5 having a flat flange at the peripheral edge, and then the peripheral edge of the flange is trimmed. Thereafter, the flange of the cylindrical body 5 is formed by flange forming the flange 2 having a U-shaped cross section.

Next, as shown in FIGS. 4 and 5, the bottom 1 of the tubular body 5 is pierced to form a grid 3 composed of a vertical bar 31 and a horizontal bar 32 on the bottom 1.

Next, as shown in FIG. 6, the central portion 32a of the horizontal rail 32 is
The baffle A is obtained by being twisted and bent so that the thick surface 32c is opposed to the direction in which the outside air is introduced.

(Effects of the Invention) As described above, according to the baffle according to the present invention, at least one of the first and second bars is configured such that its thick wall faces the direction in which outside air is introduced. Of the first and second crosspieces, the crosspiece whose thick wall faces the direction of introduction of outside air is a crosspiece formed by piercing and having a wide width. Do not disturb.

For this reason, according to the present invention, it is possible to sufficiently introduce the outside air while maintaining the reduction in the number of working steps and the cost associated with the piercing method.

[Brief description of the drawings]

1 to 3 show a baffle according to an embodiment of the present invention. FIG. 1 is a perspective view, FIG. 2 is a plan view, FIG. 3 is a sectional view taken along line III-III of FIG. 4 to 6 show a manufacturing process of the baffle, FIG. 4 is a plan view of a tubular body in a piercing process, FIG. 5 is a cross-sectional view of a part of the tubular body, and FIG. Sectional view of a part of the tubular body, FIG.
The figure is a perspective view of a conventional baffle. A: Baffle 1: Bottom 3: Grid 31: Vertical bar (first bar) 32: Horizontal bar (second bar) 32c: Thick surface

Claims (1)

(57) [Scope of request for utility model registration] 1. A first strip having a strip shape extending in one direction and a second strip having a strip shape extending in a direction intersecting with the first strip and having an opening at one end. A lattice having a bottom portion formed by piercing and having a bottomed cylindrical metal baffle for introducing outside air from one end to the other end. At least one of the bars is formed by bending a flat lattice-shaped bar formed by piercing a metal flat plate so as to be twisted in a substantially right angle direction, so that the thick surface of the one bar is open air. A baffle formed so as to face the introduction direction.