JPH043460B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] This invention relates to a novel felt material for chest pads or shoulder pads.

[Conventional technology]

Conventionally, felt material F for chest pads or shoulder pads has been manufactured by appropriately cutting a plate-shaped felt material M into a three-dimensional shape, as shown in FIG.

[Problem to be solved by the invention]

However, (1) in the case of the conventional felt material F for chest pads or shoulder pads, because the plate-shaped felt material M was cut, the lengths of the felt fibers 11 constituting the felt material F were uneven. As a result,
(2) Furthermore, since the conventional felt material F is made by cutting a plate-shaped felt material M, the felt fibers 11 are arranged horizontally, and this result,
Each of these had its own disadvantages, such as poor elasticity in the normal direction on three-dimensional slopes.

An object of the present invention is to eliminate such disadvantages.

[Means to solve the problem]

In order to achieve the above object, in a felt material according to a first aspect of the present invention, short felt fibers are collected and adhesively fixed in a three-dimensional shape, and the short felt fibers are arranged at approximately the same density along the surface of the three-dimensional shape. This is what was placed.

Further, in the felt material for chest pads or shoulder pads according to the second invention, in the felt material in which short felt fibers are gathered and adhesively fixed in a three-dimensional shape, the short felt fibers are arranged at approximately equal density along the surface of the three-dimensional shape. It was placed in

[Effect]

Since the felt material according to the first invention is configured as described above, substantially uniform elasticity can be obtained in any part of the felt material.

Since the felt material for chest pads or shoulder pads according to the second invention is configured as described above, substantially uniform elasticity can be obtained in any part of the felt material.

Therefore, by using this felt material, it is possible to obtain a chest pad or shoulder pad that has approximately the same elasticity at all locations.

[Explanation of Examples]

Embodiments of the present invention will be described below with reference to FIGS. 1 to 4.

In FIG. 1, 1 is a felt material for a chest pad, and is formed in the shape of a chest pad. Also, 11,
11,... are short felt fibers, and these short felt fibers 11, 11,
... have approximately the same length and are arranged approximately along the surface of the felt material 1. For this reason, felt material 1
Approximately equal elasticity can be obtained at any location on the surface.

Next, an apparatus for manufacturing the felt material 1 will be explained based on FIGS. 2 to 4.

In the figure, 2 is a substrate, and 21 is an opening formed in this substrate 2. 3 is a felt molding die having a curved convex shape, and is fitted into the opening 21 of the substrate 2. As shown in FIG. The felt material 1 is molded using the felt mold 3. 31, 31, . . . are pores, which are formed on the molding surface 32 of the felt mold 3. These pores 31, 31, . . . are for sucking the air inside the mold 3 to the outside of the mold 3, as will be described later. By the way, the number of pores 31 per unit area gradually increases from the shallowest part to the deepest part of the molding surface 32, as shown in FIG. Therefore, the reduced pressure described below gradually increases from the shallowest part to the deepest part in the mold 3. In addition, instead of changing the number of pores 31 per unit area, as shown in FIG. 4, the diameter of the pores 31 is gradually increased from the shallowest part to the deepest part of the molding surface 3. You can also do that.

Next, 4 is a casing, which covers the mold 3. This casing 4 is a suction duct 41
has. By reducing the pressure inside the casing 4 through the suction duct 41, the air inside the mold 3 can be sucked out of the mold 3 through the pores 31 of the mold 3, as described above.

A supply conveyor 5 is installed above the mold 3. This supply conveyor 5 is for supplying raw material cotton C. Reference numeral 6 denotes a cotton sizing machine, which is installed near the downstream end of the supply conveyor 4. The cotton straightening machine 6 rotates counterclockwise around the rotation shaft 61 to control the raw cotton C.
is cut and opened into felt fibers (felt fibers of approximately constant length) 11. Split felt fiber M
falls and accumulates within the molding surface 32 of the mold 3. At this time, since the pressure inside the casing 4 is reduced by the suction duct 41, the felt fibers 11 can be accumulated in the mold 3 almost immediately. In this case, the reduced pressure within the mold 3 is based on the arrangement of the pores 31 (see the above description), and the reduced pressure described below gradually increases from the shallowest part to the deepest part of the mold 3. Therefore, the amount of accumulated felt fibers 11, 11, . . . gradually decreases from the shallowest part to the deepest part in the mold 3 in proportion to this reduced pressure. Therefore, they are accumulated at approximately equal density. Thereafter, the accumulated felt fibers 11, 11, . . . are heated by heating the mold 3 in a heating chamber (not shown) or the like. At this time, the heat-melting fibers contained in the felt fibers 11, 11, . . . are heated and melted, and the accumulated felt fibers 11, 11, . . . are solidified. Thereafter, the upper surface of the hardened felt fibers 11, 11, . . . in the mold 3 is pressed by a press 7. In this case, depending on the shape of the pressing surface of the press 7, the upper surface of the hardened felt fibers 11, 11, . . . can be made flat or recessed.

〔Effect of the invention〕

The felt material for chest pads or shoulder pads according to the first invention is a felt material in which short felt fibers are gathered and adhesively fixed in a three-dimensional shape, and the short felt fibers are arranged at substantially equal density along the surface of the three-dimensional shape, so that Approximately uniform elasticity can be obtained in any part of the felt material.

Further, the felt material for chest pads or shoulder pads according to the second invention is a felt material in which short felt fibers are gathered and adhesively fixed in a three-dimensional shape, and the short felt fibers are arranged at substantially equal density along the surface of the three-dimensional shape. Therefore, substantially uniform elasticity can be obtained in any part of the felt material.

Therefore, by using this felt material for chest pads or shoulder pads, it is possible to obtain a felt material for chest pads or shoulder pads that has substantially the same elasticity at any location.

[Brief explanation of drawings]

FIG. 1 is a sectional view of an embodiment of the felt material for chest pads or shoulder pads according to the present invention, and FIGS. 2 to 4 show an apparatus for producing the felt material, and FIG. 2 is an explanatory diagram of the apparatus. , FIG. 3 is a view taken along the arrow in FIG. 2, FIG. 4 is a view of another embodiment corresponding to FIG. 3, and FIG. 5 is a view of a conventional example corresponding to FIG. 1...Felt material, 11...Felt staple fiber.

Claims (1)

[Scope of Claims] 1. A felt material in which short felt fibers are collected and adhesively fixed in a three-dimensional shape, characterized in that the short felt fibers are arranged at substantially equal density along the surface of the three-dimensional shape. 2. A felt material for chest pads or shoulder pads, characterized in that short felt fibers are collected in a three-dimensional shape and fixed with adhesive, the short felt fibers being arranged at substantially equal density along the surface of the three-dimensional shape.