JP2772626B2 - Bearing structure of paint roller support shaft - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a paint roller used for painting a wall or the like of a building, and more particularly to a bearing structure of a support shaft for rotatably supporting a paint roller of a paint roller. .

[0002]

2. Description of the Related Art As a conventional paint roller, FIG. 5 shows a cross-sectional view of a main part thereof. A rotary cylinder 40 serving as a bearing is attached to a tip portion of a support shaft 1 for a paint roller. The configuration of the rotary cylinder 40 is such that a base-side bearing part 45 and a distal-side bearing part 46 are connected by a plurality of leaf spring bodies 47, and a stopper 48 such as a screw is provided between the base-side and the distal-side. 4
8 fixed. A cylindrical coating roll 50 is fitted and fixed to the rotating cylinder 40. The coating roll 50 includes a cylindrical tubular body 53 and a coating cloth tape 54 adhered to an outer periphery thereof. Further, instead of the above-described conventional leaf spring portion 47,
In some cases, a paint roller support shaft is supported by bearings at both ends with a rotatable spacer interposed therebetween. In each of these embodiments, the support shaft 1 for the paint roller is used.
Must be fixed by fasteners at two locations, proximal and distal.

[0003]

In the above conventional example, at least two stoppers are required, and there is a problem that the assembling and fixing are troublesome, and there is room for improvement. . In addition, the stopper must be fixed at both ends of the bearing portion, and there has been a problem that the stopper is loosened and comes off. If the fasteners loosen,
The side of the coating roll becomes severe and becomes unusable once it comes off. Therefore, in the present invention,
In order to solve these problems, a first object is to provide a bearing which can easily fix a bearing portion of a paint roller support shaft to the support shaft and which can be removed as necessary. It is an object of the present invention to provide a roller which can be securely fixed to a support shaft for a roller, will not come off during use, and can prevent the coating roll from running sideways.

[0004]

According to a first aspect of the present invention, a coating roll can be attached to the outer periphery, and an insertion hole 31 is provided at the center in the longitudinal direction. An outer tube member 3 and a fixed tube 4 having an insertion hole 41 at the center in the longitudinal direction. The inner diameter of an appropriate portion of the insertion hole 31 of the outer tube member 3 is formed larger than the inner diameters of the other portions. The fixed cylinder 4 is disposed in the insertion hole 32 having a large inner diameter, and the paint roller support shaft 1 is inserted into the insertion hole of both the outer cylinder member 3 and the fixed cylinder 4.
Is rotatable paint roller support shaft 1, the fixed cylinder 4 is fixed to the paint roller support shaft 1, the outer cylinder member 3
The opening 6 is formed in the outer peripheral portion of the insertion hole 32 having a large inner diameter.
The fixed cylinder 4 is formed through the opening 6 .

In a second aspect of the present invention, a part of the inner peripheral surface of the insertion hole 41 of the fixed cylinder 4 is
The fixed cylinder 4 is provided with a swelling portion swelling toward the width center portion of the first fixing member 4 or by providing a plurality of protrusions such as projections and projections at appropriate positions on the inner peripheral surface thereof. Is fixed to the support shaft 1. According to a third aspect of the present invention, in the first aspect, the inner diameter of the insertion hole 41 of the fixed cylinder 4 is formed smaller than the outer diameter of the paint roller support shaft 1, and a slit is provided in a longitudinal direction of a peripheral side surface thereof. It is a thing. The fourth ones of the present invention, it the
In this invention, one or two or more grooves are provided at appropriate positions on the outer periphery of the outer cylindrical member 3 in the circumferential direction.

[0006]

In the first embodiment of the present invention, since the fixed cylinder 4 is fixed to the paint roller support shaft 1 inside the outer cylinder member 3, the outer cylinder member 3 is fixed inside the rotatable outer cylinder member 3. The tubular member (3) is prevented from falling off the paint roller support shaft (1). Therefore, the problem that the fixed cylinder 4 comes off the paint roller support shaft 1 during use of the paint roller does not completely occur. At the same time, lateral displacement of the outer cylinder member 3 can be prevented. Further, the fixed cylinder 4 can be easily incorporated into the outer cylinder member 3 through the opening 6 provided on the outer peripheral portion of the outer cylinder member 3. Second and second aspects of the present invention
In the third embodiment, the fixed cylinder 4 can be easily attached to the paint roller support shaft 1 depending on the shape of the inner peripheral surface of the fixed cylinder 4, and can be fixed at an appropriate position. It can also be removed by applying force and replaced with another new one. In a fourth embodiment of the present invention, the outer cylindrical member 3
As a result, the ridge portion is annularly formed by the groove portion provided on the outer periphery of the roller, and when the coating roll is attached to the outer periphery, it plays the role of preventing slippage.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment will be described below with reference to the accompanying drawings. 1 to 4 show an embodiment of the present invention. FIG. 1 shows a first embodiment of the present invention, and is an exploded perspective view in which a part of a coating roll 5 is cut away. FIG. 2 is an explanatory sectional view of a main part in a state where the embodiment is assembled. A handle 2 is provided at one end of the metal paint roller support shaft 1, and the paint roller support shaft is extended upward from the handle 2 with an appropriate shape.
Thereafter, it is bent at a substantially right angle, and a bearing portion and a coating roll 5 are attached to the tip portion. The present invention relates to the structure of the bearing portion. That is, this bearing structure is composed of an outer cylinder member 3 made of synthetic resin and a fixed cylinder 4 incorporated therein. The outer cylinder member 3 is provided with an insertion hole 31 through which a paint roller support shaft 1 can be inserted at a central portion in the longitudinal direction, and the outer cylinder member 3 is centered on the paint roller support shaft 1. Rotate.

An opening 6 is provided on the outer peripheral surface of the outer cylindrical member 3. The opening 6 communicates with the insertion hole 31, and the inner diameter of the insertion hole 32 in the portion where the opening 6 is provided is formed larger than the inner diameter of the insertion hole 31 in the other portion. It is formed substantially equal to the outer diameter of the cylinder 4. Therefore, the step 8 is formed at the boundary between the large-diameter portion of the insertion hole 32 and the small-diameter insertion hole 31 on both sides thereof. The length of the opening 6 in the longitudinal direction is substantially equal to the length of the fixing cylinder 4 in the longitudinal direction, and the fixing cylinder 4 can be incorporated into the outer cylinder member 3 through the opening 6. The fixed cylinder 4 is made of a synthetic resin, and has an insertion hole 41 for inserting the paint roller support shaft 1 at a central portion in the longitudinal direction thereof, and a plurality of elongated holes 7 in a longitudinal direction of an outer peripheral portion thereof. Provided. The connecting portion 42 between the elongated holes 7 is not shown in the drawing, but the insertion hole 41 of the fixed cylinder 4 is provided.
, And the inner surface of the insertion hole 41 bulges toward the center. By the formation of such a bulging portion, the fixing cylinder 4 is fixed to the paint roller support shaft 1 by the elastic force of the synthetic resin.

The coating roll 5 is formed by integrally covering the entire outer peripheral surface of a cylindrical body 51 having a cylindrical shape with a brush member 52 and bonding the brush member 52 with an adhesive. The cylinder 51 is
Those made of synthetic resin or paper can be used. As a paper product, a paper material wound multiple times,
It is possible to use those wound in a spiral shape and those formed into a cylindrical shape by impregnating them with a synthetic resin. As the brush member 52, various materials such as a pile fabric, a woven fabric made of synthetic fiber, a sponge, and leather having a long bristle can be used. This coating roll 5
Can be fitted and attached to the outer cylinder member 3.
A flange 9 is formed at the proximal end (the right end in the figure) of the outer cylindrical member 3. The coating roll 5 is fitted until the flange 9 contacts the flange 9. The joining between the coating roll 5 and the outer tubular member 3 may be performed with an adhesive as described above, or may be fixed using various fixing means. Furthermore, not only the fixing method but also the fixing method can be used. In addition, each of the joining surfaces is connected to the corresponding position by a protrusion or a concave portion adapted to the same, and only the coating roll 5 can be attached to and detached from the outer cylinder member 3. It is also possible to employ a means for connecting and fixing the above. Further, the shape of the tubular body 51 constituting the coating roll 5 is not limited to a simple tubular shape, but may be a bottomed one by closing an end opposite to the end where the outer tubular member or the like is inserted. It is also possible to form a closed state by using the tubular body of the embodiment and fitting a cap to the end opposite to the end where the outer tubular member or the like is inserted.

[0010] The assembling method is as follows.
First, a bearing structure is assembled, and a coating roll 5 is inserted and fixed in the bearing structure. Thereafter, the tip of the paint roller support shaft 1 is inserted from one end of the insertion hole 31 of the outer cylinder member 3 and then the fixed cylinder 4
The tip end of the paint roller support shaft 1 is inserted into the insertion hole 41, and further inserted into the insertion hole 31 of the outer cylinder member 3 to penetrate to the other end of the insertion hole 31. The fixed cylinder 4 is fixed to the paint roller support shaft 1, and the outer cylinder member 3 is rotatable about the paint roller support shaft 1. , Does not fall off the paint roller support shaft 1. However, when replacing the bearing structure and the coating roll 5, it is possible to remove it from the paint roller support shaft 1 by applying a hand force to them. In addition, since the inner diameters of the insertion holes 31 of the outer cylinder members 3 on both sides where the fixed cylinder 4 is located are formed to be small at the same time, the outer cylinder member 3 does not move laterally with respect to the paint roller support shaft 1. It is. The paint roller thus assembled is used after a certain period of use, when it is necessary to replace the paint roll 5 by applying force.
Only the coating roll and the bearing structure can be withdrawn from the paint roller support shaft 1 and easily replaced with another new one.

FIG. 3 is an exploded perspective view showing a second embodiment of the present invention in which a part of a coating roll 5 is cut away, and FIG. 4 is an assembled state of the embodiment. It is principal part sectional explanatory drawing of. In this embodiment, the outer cylindrical member 3
Is different from that of the first embodiment. That is, the outer cylinder member 3
In the present embodiment, the outer cylindrical member 3 is divided into two parts in the longitudinal direction, and in the present embodiment, the two divided members 10 have the same shape.
10 '. Protrusions 12 and holes 12 'suitable for the protrusions 12 are provided at appropriate positions on these divided surfaces, and both divided members 10, 10' are provided.
Are joined at the split surface, and these projections 12 and holes 12 ′
Can be fitted together to join and fix them. In this embodiment, unlike the first embodiment, there is no need to provide an opening for incorporating the fixed cylinder 4. This is because, since the outer cylinder member 3 can be divided, the fixed cylinder 4 can be incorporated into the outer cylinder member 3 in a divided state.

The point that the inner diameter of the insertion hole 32 at the portion where the fixed cylinder 4 is incorporated is formed larger than the portion of the other insertion holes 31 is the same as in the first embodiment, but the second embodiment is similar to the second embodiment. This can be clearly seen in FIG. Other configurations are the same as those of the first embodiment. In the figure, reference numerals 11 and 11 'denote portions where the inner diameter of the insertion hole 31 is small. The method of assembling this embodiment is as follows. First, the outer cylinder member 3 is divided into two divided members 10 and 10 ′, and the fixed cylinder 4 is incorporated into a portion having a large inner diameter of the insertion hole 32. , 10 ′ are joined and fixed by fitting the projection 12 and the hole 12 ′. Next, the coating roll 5 is fitted and attached to the outer cylinder member 3. Lastly, the tip of the paint roller support shaft 1 is inserted through the outer cylinder member 3 and the fixed cylinder 4 to penetrate. The outer cylinder member 3 is rotatably attached to the support shaft 1 for the paint roller.
Is fixed to the paint roller support shaft 1, the outer cylinder member 3 does not fall off from the paint roller support shaft 1 in a normal use state. Completely prevented. When the coating roll 5 and the bearing structure are replaced, they can be removed from the paint roller support shaft 1 by applying a force to them.

Although the embodiment has been described above, the design of the present invention can be further changed as follows. In the second embodiment, the outer cylinder member 3 is divided into two parts in the longitudinal direction. However, this division may be performed not only in the longitudinal direction but also in two parts in a direction perpendicular to the longitudinal direction. It is possible. That is, by dividing the outer cylinder member 3 in a direction perpendicular to the longitudinal direction of the outer cylinder member 3 in a portion having a large inner diameter of the insertion hole 32 where the fixed cylinder 4 is incorporated, the fixed cylinder 4 can be easily incorporated in the interior. Because it can be. The divided component members can be connected and fixed by fitting the projection provided on the division surface and the hole, similarly to the second embodiment. When the wall thickness of the outer cylindrical member 3 in this portion is small, some convex portions are formed on one of the edge portions of the two constituent members, and a concave portion is formed on the other edge portion so as to correspond thereto. And combine them,
They may be combined.

Further, although this division is made in a direction orthogonal to the longitudinal direction of the outer cylinder member 3, it does not have to be exactly orthogonal and may be in an oblique direction. Any direction is acceptable. Further, one or two or more grooves may be provided at appropriate positions on the outer peripheral surface of the outer cylindrical member 3 in the circumferential direction thereof, and may be used as anti-slip means when the coating roll 5 is attached thereto. The groove is preferably provided in a portion of the outer cylinder member 3 where the inner diameter of the insertion hole 31 is small. This is because the thickness of the outer cylindrical member in this portion is large. As a result, a ridge is formed by the groove, and the ridge serves to prevent the coating roll 5 from falling off. Further, in the above embodiment, the insertion hole 31 of the outer cylinder member 3 is formed so as to penetrate in the longitudinal direction, but the end opposite to the end where the paint roller support shaft 1 is inserted is closed. Of course, it may be formed. In this manner, by making the length of the outer cylinder member 3 in the longitudinal direction substantially equal to the length of the cylindrical body 51 of the cylindrical coating roll 5 in the longitudinal direction, the end of the cylindrical body 51 of the coating roll 5 is formed. The portion is closed, and there is no need to fit a cap or the like. Elongated hole 7 provided in fixed cylinder 4
In order to make it easier to insert the paint roller support shaft 1 into the insertion hole 41 of the fixed cylinder 4, the connecting portion 4
2 is formed so as to be easily deformed, and can be implemented without any particular provision.

In order to fix the fixed cylinder 4 to the paint roller support shaft 1, in the above embodiment, a part of the inner surface of the insertion hole 41 of the fixed cylinder 4 is bulged toward the center of the insertion hole. However, it is also possible to configure this bulging portion with a plurality of projections and projections. For example, the insertion hole 41 of the fixed cylinder 4
It is also possible to arrange a plurality of protrusions at both end portions of the inner surface of the inner surface in a line along the edge. In addition, fixed cylinder 4
The inner diameter of the insertion hole 41 is made smaller than the outer diameter of the paint roller support shaft 1, and a slit is provided over the entire length of the fixed cylinder 4 so that the inner diameter of the fixed cylinder 4 has the elastic force of the material. And can be fixed to the paint roller support shaft 1. Painting roll 5
Is not limited to the shape with both ends opened, but may be one with one end closed as described above. The material of the paint brush member 52 to be joined to the outer periphery of the paint roll 5 can also be freely selected. The outer shapes of the paint roller support shaft 1 and the handle 2 can also be freely designed.

[0016]

The present invention having the above configuration has the following effects. In the first aspect of the present invention, the bearing structure is constituted by the outer cylinder member and the fixed cylinder disposed therein, and this can be easily attached to and fixed to the paint roller support shaft. By incorporating the fixed cylinder in the outer cylinder member, there is no danger that the fixed cylinder will come off, and lateral displacement of the outer cylinder member can be effectively prevented. Further, since the outer cylinder member is provided with an opening and the fixed cylinder can be easily incorporated from the opening, the bearing structure can be easily assembled and fixed to the paint roller support shaft. According to the second and third aspects of the present invention, in addition to the above effects, the fixed cylinder can be securely fixed to the paint roller support shaft by the configuration of the inner peripheral surface of the insertion hole of the fixed cylinder. During use of the roller, the outer cylinder member can be completely prevented from falling off and sideways. By applying a force, the bearing structure can be removed from the paint roller support shaft, and can be replaced with another new one. According to the fourth aspect of the present invention, since the groove is formed on the outer peripheral surface of the outer cylindrical member, a ridge is formed as a result, and the coating roll attached thereto becomes non-slip. . Therefore, in a type other than the type in which the coating roll is bonded and fixed to the outer cylinder member, that is, in a type in which only the coating roll is detachably attached to the outer cylinder member, it is an effective non-slip means. that's all,
The present invention has a remarkable effect.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view illustrating a first embodiment of the present invention, in which a coating roll is partially cut away.

FIG. 2 is an explanatory sectional view of a main part in a state where the embodiment of FIG. 1 is assembled.

FIG. 3 is an exploded perspective view illustrating a second embodiment of the present invention, in which a coating roll is partially cut away.

FIG. 4 is an explanatory sectional view of a main part in a state where the embodiment of FIG. 3 is assembled.

FIG. 5 is an explanatory sectional view of a main part of a conventional paint roller.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Support shaft for paint roller 2 Handle 3 Outer cylinder member 31, 32, 41 Insertion hole 4 Fixed cylinder 5 Painting roll 6 Opening 10, 10 'Division member

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int. Cl. ⁶ , DB name) B05C 17/00-17/04 F16C 17/02

Claims (4)

(57) [Claims] An outer cylindrical member (3) having a coating roll attached to an outer periphery thereof and having an insertion hole (31) at a central portion in a longitudinal direction; and an insertion hole (41) at a central portion in a longitudinal direction. The inner diameter of an appropriate portion of the insertion hole (31) of the outer cylinder member (3) is formed to be larger than the inner diameter of the other portion, and the insertion hole ( 32), the paint roller support shaft (1) is inserted into the insertion holes of both the outer cylinder member (3) and the fixed cylinder (4). Is fixed to the paint roller support shaft (1), and the fixed cylinder (4) is fixed to the paint roller support shaft (1), and the insertion hole (32) having a large inner diameter of the outer cylinder member (3). of
An opening (6) is formed in the outer peripheral portion, and from this opening (6),
A bearing structure for a support shaft for a paint roller, characterized by incorporating a fixed cylinder (4) . 2. A bulging portion in which a part of the inner peripheral surface of the insertion hole (41) of the fixed cylinder (4) bulges toward the center of the insertion hole (41), or The fixing cylinder (4) is fixed to the paint roller support shaft (1) by providing a plurality of projections such as protrusions and projections at appropriate positions on the inner peripheral surface. Bearing structure of support shaft for paint roller. 3. An inner diameter of an insertion hole (41) of the fixed cylinder (4) is formed smaller than an outer diameter of a paint roller support shaft (1).
The bearing structure for a paint roller support shaft according to claim 1, wherein a slit is provided in a longitudinal direction of the peripheral side surface. 4. A supporting paint roller according to any one of claims 1 to 3 one or more grooves in the appropriate position on the outer circumference, characterized in that provided in the circumferential direction of the outer cylinder member (3) Shaft bearing structure.