JPS61101270A - Paint pressure feed type painting roller - Google Patents

Abstract

PURPOSE:To surely perform painting without wastefulness, by providing a notch like recessed part to a part of the peripheral surface of the cylinder of a squeeze shaft and supplying the paint in the recessed part to a roller main body from a cylindrical core by the relative rotation of the squeeze shaft and said core. CONSTITUTION:At first, when a paint is fed to the central paint supply passage 4 of a squeeze shaft 1 through a support lever 7 also used as a paint supply pipe, the paint is extruded in notch like recessed parts 3a, 3b through the passage 4 and a paint distribution passage 5. When a roller main body 16 is pressed to a surface to be painted in this state and reciprocally moved through the support lever 7, the paints in the recessed parts 3a, 3b are pressed to the corner 20 in the rotary direction side of the roller main body 16 by the friction between the core 18 and the shaft 1. The paint passing through said corner 20 is successively extruded into the roller main body 16 from paint outflow holes 17 through the core 18 to form a paint film on a surface to be painted.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a paint pressure-feeding type coating roller suitable for coating highly viscous paint.

(Prior art and its problems) In a conventional paint pressure-feeding type painting roller, the roller body is rotatably supported by a small-diameter paint supply pipe that also serves as a roller body rejection shaft, and the paint is supplied to the paint supply pipe. Supplying the paint from the paint discharge hole provided on the peripheral surface of the paint supply pipe into the inside of the cylindrical core with paint outlet holes of the roller body, that is, into the annular space between the paint supply pipe and the core, The paint in this annular space was configured to flow out from the paint outflow hole of the core to the peripheral portion of the roller body.

In such a conventional paint pressure-feeding type painting roller, when a highly viscous paint is used, the annular space inside the core is filled with the paint, and then the paint is pushed out from the paint outlet hole of the core by the paint supply pressure. Therefore, it becomes necessary to sufficiently increase the paint supply pressure. In addition, since the annular space having a large volume is filled with paint and remains,
When using a two-component reactive hardening paint, there is a risk that a large amount of =tq will remain in the main body of the mouthpiece and harden, requiring a great deal of effort and time for post-treatment.

(Means for Solving the Problems) The present invention provides a paint pressure-feeding type painting roller that can solve the conventional problems as described above. A notch-like recess is formed along the axial direction with cylindrical portions left at both ends, and paint distribution passages are provided at multiple locations in the axial direction to communicate the notch-like recess and the central paint supply passage. One end of the provided squeeze shaft is connected to a support rod, and roller body supporting caps having a slightly larger diameter than the cylindrical portions at both ends of the squeeze shaft are rotatably supported concentrically adjacent to both ends of the squeeze shaft. The present invention is characterized in that both ends of a cylindrical core with paint outlet holes of the painting roller body fitted onto the squeeze shaft are supported by the pair of left and right supporting caps.

(Example) An example of the present invention will be explained below based on the attached illustrative drawings.

Reference numeral 1 denotes a squeeze shaft, in which notch-like recesses 3a and 3b are formed along the axial direction on both sides in the diametrical direction, with cylindrical portions 2a and 2b remaining at both ends, on the circumferential surface of a cylindrical body. A plurality of paint distribution passages 5 are provided in the axial direction to allow the notch-like recesses 3a, 3b to pass through the central paint supply passage 4, and threaded holes 6a, 6b are provided concentrically at both ends of the paint supply passage 4. It is formed by Reference numeral 7 denotes a support rod which also serves as a paint supply pipe, one end of which is connected with a squeeze shaft support member 8 at right angles, and the other end of which is provided with a handle connection portion 9 which also serves as a paint supply pipe. The squeeze shaft support member 8 has a threaded shaft portion 10 formed at its tip, and by screwing the threaded hole portion 6a at one end of the squeeze shaft 1 into the threaded shaft portion 10, the squeeze shaft support member 8 can be tightened once. The shaft 1 is supported in a cantilevered manner.

In this supported state of the squeeze shaft 1, a passage 11 that connects the internal passage 7a of the support rod 7 which also serves as the paint supply pipe and the paint supply passage 4 of the squeeze shaft 1
is provided on the support member 8.

Reference numeral 1213 designates a cap 7 for supporting the roller body, which includes core support portions 12a, +3b having a slightly larger diameter than the cylindrical portions 2a, 2b at both ends of the squeeze shaft, and flange portions +2b, 13b having an even larger diameter. . One camp 1
2 is the screw shaft portion 1 of the squeeze shaft support member 8;
0 and the camp positioning flange 14, the flange portion +2b is rotatably supported so as to be located on the far side from the screw shaft portion 10, and the other camp 13 is rotatably supported at the outer end of the squeeze shaft 1. A cap support shaft 15 is concentrically connected to the hole portion 6b via a screw shaft portion +5a.
is rotatably supported. +5b is a flange for stopping the camp removal, and 15C is a tightening part for rotation operation.

Reference numeral 16 denotes a roller body, which includes a cylindrical core 18 having a large number of paint outlet holes 17. The inner diameter of this cylindrical core 18 is equal to the roller body supporting cap +2.
When assembling the core support portions 12a and 13a, which are configured to be slightly smaller in diameter than the core support portions 12a and 13a, the cap support shaft 1
5 and the cap 13 are removed, the roller main body 16 is fitted onto the squeeze shaft 1 from the outer end side, and the inner end of the core 18 is inserted into the core support part 1 of the cap 12.
2a, the core support part 1 of the next cap 13 is tightly fitted and fixed by applying pressure in the axial direction until it contacts the flange part +2b.
3a is pressurized in the axial direction to the outer end of the core 18 until the flange portion +3b comes into contact with the outer end of the core 18, and is tightly fitted and fixed, and the screw shaft portion +5a of the cap support shaft 15 is attached to the cap. By screwing into the threaded hole portion 6b of the squeeze shaft 1 from the center hole of the squeeze shaft 1
A cap support shaft 15 is coupled to the outer end of the cap support shaft 15, and the cap support shaft 15 rotatably supports the cap 13.

In use, the d material is pumped into the central paint supply passage 4 of the squeeze shaft 1 via the support rod 7 which also serves as a paint supply pipe. The liquid is pushed out from the paint supply passage 4 via the paint distribution passage 5 into the cutout-like recesses 3a, 3b. In this state, as shown in FIG. 4, the roller body 16 is pressed onto the electrical equipment surface 19 and the roller body 16 is reciprocated along the surface to be painted 19 via the support rod 7, thereby squeezing the roller body 16. It is rotated reciprocally around the shaft 1 and rolled on the surface 19 to be coated.

Notch-shaped recesses 3a and 3b of the squeeze shaft 1
The paint sent in is pressed against the corner 20 of the recesses 3a and 3b on the side in the rotational direction of the roller body due to friction with the rotating core 18, and flows through the paint outflow hole 17 passing through the corner 20 to the core 18. It passes through and is pushed out into the roller body 16. The paint inside the roller body 16 moves onto the surface to be painted 19 as the roller body 16 moves, and forms a coating film on the surface to be painted 19 .

In the above embodiment, two notch-like recesses 3a and 3b are formed in the squeeze shaft 1, but it is also possible to form only one.
There may be three or more, and although the bottom surface of the notch-like recess is a flat surface, it can also be a concave curved surface or a convex curved surface.

(Operations and Effects of the Invention) The paint pressure-feeding type painting roller of the present invention can be implemented and used as described above, and the roller has a shaft on the circumferential surface of the cylindrical body with cylindrical parts remaining at both ends. High viscosity Even when using paint, as long as the material is fed into the notched recess, the relative rotation between the core of the roller body and the squeeze shaft will automatically move the paint in the recess toward the roller body. Therefore, even if the paint supply pressure is lowered, highly viscous paint can be reliably fed into the roller body and good coating can be achieved.

In addition, since the paint supplied into the notch-like recess can be used up until after Ik, even if it is a two-component reaction-curing type paint, it cannot be stored in the core of the roller body after work as in the past. This also eliminates the risk of a large amount of paint remaining after it hardens.

Furthermore, according to the configuration of the present invention, the cylindrical portions at both ends of the squeeze shift are close to the inner circumferential surface of the core of the roller body, and it is possible to suppress the paint from moving outward from these portions toward the inner surface of the roller. Therefore, the leakage of paint from between the cap and the roller body, the body core, and between the shaft portion that rotatably supports the camp and the camp can be completely eliminated.

[Brief explanation of drawings]

FIG. 1 is a longitudinal sectional front view, FIG. 2 is a perspective view of the squeeze shaft, FIG. 3 is an enlarged longitudinal sectional front view of the main parts, and FIG. 4 is a longitudinal sectional side view showing the main parts in a state of use. DESCRIPTION OF SYMBOLS 1... Squeeze shaft, 2a, 2b... Cylindrical part, 3a, 3b... Notch-like recessed part, 4... Paint supply pressure path, 5... Paint distribution path, 6a, 6b... Screw hole portion, 7... Support rod also used as paint supply pipe, 8... Squeeze shaft support member, IO, TSA... Screw shaft portion, 12.13... Cap for supporting roller body, 1
5... Cap support shaft, 16... Roller body, 1
7... Paint outflow hole, 18... Cylindrical core.

Claims (1)

[Claims] A notch-like recess is formed along the axial direction on the circumferential surface of the cylindrical body, with cylindrical portions remaining at both ends, and a paint distribution passage is provided to communicate the notch-like recess with the paint supply passage in the center. One end of the squeeze shaft provided at a plurality of locations in the axial direction is connected to a support rod, and roller body support caps having a slightly larger diameter than the cylindrical portions at both ends of the squeeze shaft are arranged concentrically adjacent to both ends of the squeeze shaft. The paint pressure-feeding type coating is characterized in that a cylindrical core with paint outflow holes of the paint roller body, which is rotatably supported by the squeeze shaft, is supported at both ends by the pair of left and right support caps. roller.