JPH0424866Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Field of Application] The present invention particularly relates to a cap with a brush for paint cans.

[Conventional technology/problems]

Traditionally, paint cans have a cap with an applicator brush attached to it.These caps with brushes allow you to obtain a brush at the same time as purchasing the paint can, making it easier to prepare for painting. At this time, fitting the cap into the paint outlet of the can has the advantage that the brush is immersed in the remaining paint and does not harden.

Such caps are generally manufactured by integrally molding the cap lid and brush holding rod from thermoplastic resin such as polypropylene, but they do not contain the paint solvents in the paint can, such as toluene, xylene, or mineral spirits. Depending on the type of paint, the brush holding rod immersed in the paint may swell, creating a gap between the cap lid and the can body, causing paint to leak inside the can.
It had drawbacks such as volatilization of the solvent and skinning of the paint.

[Means and actions to solve the problem]

The present invention has been made to eliminate the above-mentioned drawbacks of the conventional brush cap.

It consists of a lid body made of a synthetic resin with a tin cap integrally molded or fixed with adhesive, and a brush rod with a brush attachment part at the lower tip, to prevent swelling of the synthetic resin due to solvents and liquid leakage from the lid body. A cap with a brush for a paint can, characterized in that the inner surface of the synthetic resin lid body is isolated by the tin cap. solved by.

Here, the manufacturing of a lid integrally molded with a tin cap is carried out by holding the tin cap in a lid mold and press-fitting a thermoplastic resin, such as polypropylene, onto the outside of the cap. Alternatively, a pre-formed lid made of plastic, wood, metal, etc. is fixed to a tin cap with adhesive.

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a perspective view of a cap with a brush according to the present invention, and this cap consists of a lid part 1, a brush holding part 2, and a brush 3. FIG. 2 is a longitudinal cross-sectional view of the cap, in which the lid 1 is integrally molded from synthetic resin with a tin cap 4 having a thread that matches the thread of the paint outlet of a paint can (not shown). There is. A cylindrical recess 41 is provided on the top surface of this tin cap in order to strengthen the bond with the synthetic resin that forms the lid, but the protrusion that protrudes to the opposite side is It presses against the disc-shaped top 5 of the brush rod 2 below to enhance the sealing effect of the cap. A circumferential protrusion 51 is provided on the underside of the disc-shaped top 5 of the brush rod 2, and when fitting the cap into the paint outlet of a can, the packing 7 is attached to the rim of the paint outlet. Improve sealing effect by applying pressure. The main body of the brush rod 2 has a vacant chamber 6 in order to save the amount of synthetic resin used. The lower part of the brush rod 2 is tapered, and the tip has a hole 8 for attaching the brush 3 to the brush rod with a wire 9. To attach a brush to this hole, as shown in Figure 3, suspend the bristles from wire 9, push the wire into hole 8, fix with adhesive if necessary, and then cut the tip of the brush. Then, align the tips and attach the brush.

Further, the already completed brush 3 as shown in FIG. 4B is attached to the hole 8 of the brush rod having a notch at the tip as shown in FIG. The brush may be attached by fitting them together and fixing them to the brush rod with adhesive.

The position of the paint outlet of the paint can to which the rear part with the brush of the present invention fits can be adjusted regardless of whether the paint can is circular or square.
It is possible to select not only the center of the upper surface but also any corner, periphery, etc.

[Effect of idea]

According to the present invention, a tin cap is integrally molded inside the cap lid that fits into the paint outlet of the paint can, so even if the brush rod swells and deforms due to the paint solvent, The cap prevents its expansion and the sealing action of the cap is always maintained well. Therefore, there is no gap between the cap and the paint outlet of the paint can, and it is possible to prevent paint from leaking in the can, volatilization of the solvent, and coating of the paint.

[Brief explanation of drawings]

Fig. 1 is a perspective view of a cap with a brush according to the present invention, Fig. 2 is a vertical sectional view thereof, Fig. 3 is an explanatory diagram of brush attachment, and Fig. 4 A and B are views showing an example of the implementation of brush attachment. It is. Symbols in the figure: 1... Lid body, 2... Brush holding part (brush rod), 3... Brush, 4... Tin cap,
5...disc-shaped top, 6...vacancy, 7...packing, 8...hole, 9...wire.

Claims (1)

[Scope of utility model registration request] It consists of a lid body made of a synthetic resin with a tin cap integrally molded or fixed with adhesive, and a brush rod with a brush attachment part at the lower tip, to prevent swelling of the synthetic resin due to solvents and liquid leakage from the lid body. A cap with a brush for a paint can, characterized in that the inner surface of the synthetic resin lid body is isolated by the tin cap.