JP2015110196A - Painting roller with variable support angle of roller member - Google Patents

Abstract

PROBLEM TO BE SOLVED: To vary a support angle of a roller member to a handle, and stably maintain the support angle.SOLUTION: A first shaft 2 with a roller member 1 attached, and a second shaft 4 fixed to a handle 5 are connected by an angle variable connector 3. The angle variable connector includes: a first joint which has a connection adjusting part with a first uneven surface and to which the first shaft is fixed; a second joint which has a connection adjusting part with a second uneven surface and to which the second shaft is fixed; and a coupling member which couples the connection adjusting parts mutually with the first and second uneven surfaces engaged, and makes relative rotation of the first and second joints impossible. In a state that the coupling member is loosened and engagement of the first and second uneven surfaces is released, an angle formed by the first and second shafts is variable by relatively rotating the first and second joints and adjusting a relative angle of the engagement of the first and second uneven surfaces.

Description

  The present invention relates to a coating roller configured to perform coating with a rotatable roller member, and more particularly to a coating roller in which a support angle of the roller member with respect to a handle is variable.

  The painting roller is widely used as a painting device for homes, fences, and inner and outer wall surfaces of ships, whether for business or home use. The painting work using the painting roller has a good working environment because the paint scatters less than spray painting, and the coating efficiency is excellent. In addition, it is easy to handle for uniform coating without unevenness.

  A general basic structure of the painting roller includes a handle for an operator to hold, a shaft having one end fixed to the handle, and a roller member rotatably attached to the tip of the shaft. The roller member has, for example, a configuration in which a brush portion made of natural fiber or synthetic fiber is attached to the outer periphery of the tubular body, and is cantilevered by a shaft so as to be rotatable. In use, coating is performed by immersing the liquid paint in the roller member and transferring the paint onto the surface to be coated while rotating it on the surface of the object to be coated.

  Usually, the positional relationship between the handle and the roller member via the shaft is set so that the axial direction of the handle is orthogonal to the rotation axis of the roller member. This is because, for example, when painting is performed directly on the wall surface, the work is most easily performed. However, painting is not always performed in a situation where the work can be performed in a natural posture with respect to a flat surface, such as when facing the wall surface. Therefore, various improvements have been made to the painting roller in order to reduce the work load in various situations.

  For example, Patent Document 1 discloses a coating roller that has been improved so that a curved surface can be efficiently painted. That is, a plurality of cylindrical roller bodies are rotatably supported by a coil spring. When the roller body is pressed against a curved surface to be coated such as a utility pole, the coil spring deforms and expands in accordance with the shape of the surface to be coated, and the brush bodies of a plurality of roller bodies are continuously applied to the curved surface. Form a tapping surface. As a result, the brush body can effectively adhere to the surface to be coated over a wide area, and a wide curved surface area can be painted by a single manual operation.

  Patent Document 2 discloses an improvement plan for a coating roller in the case where a telescopic shaft is used to cope with the distance from the hand to the painted portion. In other words, an anti-rotation mechanism that restricts relative rotation between the extendable shaft and the handle is provided so that the positional relationship between the shaft and the handle is maintained in a constant state even when the shaft is extended or contracted. It is. As a result, even when the outer shape of the handle has a directional shape that is easy for the user to grip, the handle is always in the most easily gripped state.

Japanese Utility Model Publication No. 5-9681 JP 2006-297320 A

  However, the conventional painting roller has a problem that it is difficult to use it for painting the back surface of the wall surface. That is, when painting the back surface of the wall surface, the space that can be used for work is limited. Therefore, there are many cases where the operator cannot face the painted surface. Also, when working in a limited size space, the roller for painting should be properly operated due to the dimensions of the shaft and handle, even if the roller member is to be brought into contact with the surface to be coated. There are many cases where this is not possible.

  In the conventional coating roller, the shaft has a fixed shape, and the relative positional relationship between the roller member and the handle is fixed in a constant state. Moreover, as described above, the arrangement relationship via the shaft is set so that the axial direction of the handle is orthogonal to the rotation axis of the roller member. In other words, the conventional painting roller has not been considered for the function of adapting to the painting work in the restricted space.

  Accordingly, the present invention provides a coating roller capable of varying the support angle of the roller member with respect to the handle so that the support angle can be stably maintained so that it can be adapted to a painting operation in a limited space. Objective.

  In order to solve the above problems, a painting roller according to the present invention includes a roller member, a shaft that rotatably supports the roller member, and a handle to which a base end portion of the shaft is fixed. A first shaft on which the roller member is mounted and a second shaft fixed to the handle are included, and the first and second shafts are connected by a variable angle connector. The variable angle coupler includes a first joint in which a connection adjustment portion having a first uneven surface is provided and the first shaft is fixed, and a connection adjustment portion having a second uneven surface and the second shaft is fixed. And a coupling member that couples the connection adjusting portions to each other in a state where the first and second concave and convex surfaces are engaged with each other and disables relative rotation of the first and second joints. . In a state where the coupling member is loosened and the engagement between the first and second uneven surfaces is released, the first and second joints are relatively rotated, and the relative angle of the engagement between the first and second uneven surfaces is By adjusting the angle, the angle formed by the first and second shafts is variable.

  In the coating roller having the above-described configuration, the angle formed by the first and second shafts is variable by the variable angle coupler constituted by the first and second joints. The relative angles of the first and second joints are fixed by the engagement of the first and second uneven surfaces, and are variable by releasing the engagement. Therefore, the support angle of the roller member with respect to the handle is variable, and the support angle can be stably maintained.

The front view of the roller for painting in one embodiment of the present invention The perspective view which shows the variable angle coupler which is an element which comprises the roller for the same painting Front view conceptually showing the operation of the variable angle coupler (A) is a front view of the 1st joint which comprises a part of same angle variable coupling device, (b) is a left view, (c) is a rear view. (A) is a top view of the first joint, and (b) is a bottom view. (A) is a front view of the 2nd joint which comprises a part of same angle variable coupling device, (b) is a right view, (c) is a rear view. (A) is a top view of the second joint, and (b) is a bottom view. (A) is a front view of an adjusting bolt member constituting a part of the variable angle coupler, and (b) is a right side view. Exploded side view showing the mutual relationship between the first and second joints and the adjusting bolt member (A) is a front view of the 1st shaft which is one element which comprises the roller for coating, (b) is a right view (A) is a front view of the 2nd shaft which is one element which comprises the coating roller, (b) is a right view. The perspective view which shows the handle | steering-wheel which is one element which comprises the roller for painting (A) is a front view of the handle, (b) is a sectional view.

  The coating roller of the present invention can take the following aspects based on the above-described configuration.

  That is, the connection adjusting portion is annular, the first and second uneven surfaces are provided on an annular plate surface, and the central axis of the ring of the connection adjusting portion is on the first and second joints. It can be set as the structure orthogonal to the central axis of the said 1st, 2nd shaft of each site | part fixed. Thereby, the mechanism for rotating and adjusting the relative angle of the first and second joints has a simple configuration, and the support angle of the roller member with respect to the handle can be easily adjusted to a desired state.

  Further, the first and second uneven surfaces can be formed by radial ribs, and the engagement state of the first and second uneven surfaces can be obtained by engaging the radial unevenness with each other. Accordingly, the first and second joints can be reliably fixed in a state adjusted to a desired relative angle, and the support angle of the roller member with respect to the handle can be stably maintained.

  In addition, the central axis of the first shaft in the portion fixed to the first joint may be arranged to be deviated with respect to the central axis of the ring of the connection adjusting portion. Thereby, the minimum angle between the first joint and the second joint can be made sufficiently small, and the first and second shafts can be folded compactly.

  The coupling member includes a bolt insertion hole provided on one side of the connection adjustment portion, a fixed female screw portion provided on the other side of the connection adjustment portion, and an adjustment bolt. The first and second joints are coupled by inserting an adjustment bolt and screwed with the fixed female screw portion, and the coupling strength of the connection adjusting portion is determined by the fastening state of the adjustment bolt and the fixed female screw portion. Can be configured to be adjusted. As a result, it is possible to reliably operate the connection and release of the connection adjusting portion with a simple configuration.

  The first shaft may have a bent portion. Thereby, arrangement | positioning of the roller member when the 1st, 2nd shaft is folded can be set appropriately.

  Embodiments of the present invention will be described below with reference to the drawings.

<Embodiment>
FIG. 1 is a front view showing a painting roller according to an embodiment of the present invention. The painting roller includes a roller member 1, a first shaft 2, a variable angle coupler 3, a second shaft 4, and a handle 5. The first shaft 2 is provided with a bent portion 2a.

  The roller member 1 is mounted on the tip of the first shaft 2 and is rotatably supported. A proximal end portion of the second shaft 4 is fixed to the handle 5. The first and second shafts 2 and 4 are connected by a variable angle connector 3. That is, one end of the variable angle coupler 3 is fixed to the base end of the first shaft 2, and the other end of the variable angle coupler 3 is fixed to the distal end of the second shaft 4. The second shaft 4 functions in the same manner as a single shaft via the variable angle coupler 3. However, as will be described later, the variable angle coupler 3 is configured to be bendable, and the angle formed by the first shaft 2 and the second shaft 4 can be adjusted.

  An outline of the configuration of the variable angle coupler 3 is shown in a perspective view in FIG. The variable angle coupler 3 includes a first joint 6 fixed to the proximal end portion of the first shaft 2 and a second joint 7 fixed to the distal end portion of the second shaft 4. Furthermore, an adjustment bolt member 8 is used as a coupling member for coupling the first joint 6 and the second joint 7 to each other. However, only the bolt knob 9 which is a part of the adjusting bolt member 8 is shown in FIG. The bolt knob 9 is a member provided at the outer end of a bolt (not shown).

  As shown in FIG. 3, the variable angle coupler 3 is configured so that the angle between the first shaft 2 and the second shaft 4 can be variably adjusted. That is, when the bolt knob 9 is turned to loosen the bolt, the first joint 6 and the second joint 7 can rotate with respect to the bolt as a rotation axis, and the mutual angle can be adjusted. The adjustable range of the angle is limited by the mutual interference between the first joint 6 and the second joint 7, but can be easily set to 180 degrees or more. By turning the bolt knob 9 and tightening the adjustment bolt, the angular relationship between the first joint 6 and the second joint 7 is fixed.

  Details of the configuration of the variable angle coupler 3 will be described with reference to FIGS. 4A to 11. 4A and 4B show the structure of the first joint 6. 5A and 5B show the structure of the second joint 7. FIG. 6 shows the structure of the adjusting bolt member 8.

  4A (a) is a front view of the first joint 6, (b) is a left side view, and (c) is a rear view. FIG. 4B (a) is a top view of the first joint 6, and FIG. 4 (b) is a bottom view.

  The first joint 6 includes a columnar shaft fixing portion 10 and an annular connection adjusting portion 11. The shaft fixing portion 10 is provided with a coupling hole 12 for inserting and fixing the first shaft 2. The connection adjusting portion 11 is arranged so that the central axis of the ring is orthogonal to the central axis of the coupling hole 12, and thus the central axis of the first shaft 2 at the portion fixed to the coupling hole 12. As shown in FIG. 4A (b) and the like, the thickness of the ring of the connection adjusting portion 11 is about ½ of the diameter of the shaft fixing portion 10. Further, as shown in FIG. 4A (a) and the like, the center axis of the annular shape of the connection adjusting portion 11 is arranged to be deviated from the center axis of the coupling hole 12.

  The connection adjusting portion 11 is provided with a fixed female screw portion 13 and a first uneven surface 14 that are fixed by being fitted into the center hole of the ring. The fixed female thread portion 13 is screwed with the bolt of the adjusting bolt member 8. The first uneven surface 14 is provided with radial ribs to form radial unevenness.

  FIG. 5A (a) is a front view of the second joint 7, (b) is a right side view, and (c) is a rear view. FIG. 5B (a) is a top view of the second joint 7, and (b) is a bottom view.

  The second joint 7 includes a cylindrical shaft fixing portion 15 and an annular connection adjusting portion 16. The shaft fixing portion 15 is provided with a coupling hole 17 for inserting and fixing the second shaft 4. The connection adjusting portion 16 is arranged so that the central axis of the annular ring is orthogonal to the central axis of the coupling hole 17, and hence the central axis of the second shaft 4 at a portion fixed to the coupling hole 17. As shown in FIG. 5A (b) and the like, the thickness of the ring of the connection adjusting portion 16 is about ½ of the diameter of the shaft fixing portion 15. As shown in FIG. 5A (a) and the like, the ring-shaped central axis of the connection adjusting portion 16 is arranged so that no deviation from the central axis of the coupling hole 17 is provided.

  The connection adjusting portion 16 is provided with a bolt insertion hole 18 formed as an annular center hole and a second uneven surface 19. The bolt insertion hole 18 is used for inserting the bolt of the adjustment bolt member 8. The second uneven surface 19 is provided with radial ribs to form radial unevenness.

  The radial unevenness of the second uneven surface 19 and the radial unevenness of the first uneven surface 14 are configured to be engaged with each other by being brought into contact with each other. It is desirable that the radial unevenness of the first uneven surface 14 and the radial unevenness of the second uneven surface 19 have the same pitch.

  6A is a front view of the adjusting bolt member 8, and FIG. 6B is a right side view thereof. The adjusting bolt member 8 includes a bolt 20 and a bolt knob 9 provided at the end thereof. As shown in FIG. 7, the coupling adjustment portions 11 and 16 are opposed to each other so that the first uneven surface 14 and the second uneven surface 19 are in contact with each other, and a bolt 20 is inserted into the bolt insertion hole 18 to fix the female screw portion. The first and second joints 6 and 7 are coupled by being screwed together.

  As described above, the adjustment bolt member 8, the bolt insertion hole 18, and the fixed female screw portion 13 constitute a coupling member that couples the connection adjustment portions 11 and 16. The strength of the coupling action is adjusted by the fastening state of the bolt 20 and the fixed female screw portion 13. That is, the engagement strength between the first uneven surface 14 and the second uneven surface 19 is variable, the engagement is fixed, and the relative rotation of the connection adjusting portions 11 and 16 is prevented. Adjust between possible states. However, the configuration of the coupling member is not limited to such a combination of a bolt and a female screw, and any other known configuration may be adopted.

  Next, the first shaft 2 and the second shaft 4 that are elements constituting the painting roller will be described. FIG. 8A is a front view of the first shaft 2. The 1st shaft 2 consists of the front-end | tip part 2b and the base end part 2c by making the bending part 2a into a boundary. The roller member 1 is mounted on the tip 2b. A pair of rotation prevention protrusions 21 are provided at the end of the base end 2c. By inserting this portion into a coupling hole 12 provided in the shaft fixing portion 10 of the first joint 6 and fixing it, the rotation of the first shaft 2 relative to the first joint 6 is prevented.

  FIG. 9A is a front view of the second shaft 4, and FIG. 9B is a right side view. The 2nd shaft 4 consists of a straight member, and a pair of rotation prevention protrusions 22 and 23 are provided in the front-end | tip part and the base end part, respectively. By inserting and fixing the rotation preventing protrusion 22 in the coupling hole 17 provided in the shaft fixing portion 15 of the second joint 7, the rotation of the second shaft 4 with respect to the second joint 7 is blocked. The rotation prevention protrusion 23 is provided to prevent the rotation of the second shaft 4 with respect to the handle 5.

  10 is a perspective view showing the structure of the handle 5, FIG. 11A is a front view of the handle 5, and FIG. 10B is a cross-sectional view taken along line AA in FIG. The handle 5 is formed at the body portion 24 for the user to hold, the coupling hole 25 for inserting and fixing the second shaft 4, and the distal end of the body portion 24 so as to surround the fixed second shaft 4. Are provided with four projecting portions 26 projecting.

  As shown in FIG. 11B, a cavity 27 is formed inside the main body 24, and the coupling hole 25 penetrates to the cavity 27. The rotation of the second shaft 4 with respect to the handle 5 is blocked by inserting and fixing the rotation blocking protrusion 23 of the second shaft 4 into the coupling hole 25. A female screw portion 28 is provided at the proximal end of the main body portion 24 and is used for connecting an extension member to the handle 5.

  As described with reference to FIG. 3, the coating roller having the above-described configuration can change the angle between the first shaft 2 and the second shaft 4 by adjusting the variable angle coupler 3. In addition, the adjusted state of each angle can be maintained firmly.

  That is, the connection adjusting portions 11 and 16 of the first and second joints 6 and 7 are configured such that the adjustment bolt member 8 and the fixed female screw portion 13 are in a state where the first uneven surface 14 and the second uneven surface 19 are engaged with each other. Are coupled to each other by screwing. In the range in which the degree of the coupling action by the fastening of the screw can hold the engagement state of the first uneven surface 14 and the second uneven surface 19, the connection adjusting portions 11, 16, that is, the first and second joints 6, 7 Relative rotation is restricted. If the shape and dimensions of the uneven surface are appropriately set, sufficiently strong engagement can be obtained, so that the angle between the first shaft 2 and the second shaft 4 can be maintained firmly. .

  On the other hand, the coupling adjustment parts 11 and 16 can be relatively rotated in a state where the coupling action by the fastening of the screwing is loosened and the engagement state of the first uneven surface 14 and the second uneven surface 19 cannot be maintained. is there. Therefore, the angle between the first and second shafts 2 and 4 can be adjusted by relatively rotating the first and second joints 6 and 7. Thereby, the support angle of the roller member 1 with respect to the handle 5 is variable, and the support angle can be stably maintained.

  Since the first and second concave and convex surfaces 14 and 19 of the connection adjusting portions 11 and 16 are provided with radial ribs to form radial concave and convex portions, even if the mutual contact angle changes, a constant relationship is always provided. A combined state is obtained. Accordingly, the degree of freedom in setting the angle between the first shaft 2 and the second shaft 4 is high. That is, the angle adjustment can be set from an acute angle to a straight line. For example, if the pitch of the radial ribs is every 10 °, 18 ribs can be formed in the circumference, and 18 different angle adjustments are possible. However, too acute angles are not practical, and practically useful are 40 to 180 ° (180 ° is a straight line), preferably 60 to 180 °.

  As an example, the diameter of the ring of the connection adjusting portions 11 and 16 is 20 mm, the radial ribs of the first and second uneven surfaces 14 and 19 are provided in a region having an inner diameter of 7 mm and an outer diameter of 17 mm, and the rib has a pitch of 15 °. Good results were obtained as a triangle having a cross section of 1 mm in height (sawtooth shape in the circumferential direction). That is, the support angle of the roller member 1 with respect to the handle 5 can be made variable, and the support angle can be stably maintained.

  The painting roller can be stored by folding the first and second shafts 2 and 4 when not in use. As shown in FIG. 4A (a) and the like, the central axis of the connection adjusting portion 11 is offset from the central axis of the coupling hole 12. Thereby, when the first and second shafts 2 and 4 are folded, the minimum angle between the first joint 6 and the second joint is made sufficiently small, and the first and second shafts 2 and 4 are folded compactly. It is possible.

  Further, as described above, the first shaft 2 is provided with the bent portion 2a. This is to appropriately set the arrangement of the roller member 1 when the first and second shafts 2 and 4 are folded. That is, at the time of storage, the first shaft 2 is rotated counterclockwise from the state shown in FIG. 1 and folded so that the tip 2b (see FIG. 8) to which the roller member 1 is mounted is parallel to the first shaft 2. In this state, by providing the bent portion 2 a, the distance between the tip portion 2 b and the first shaft 2 can be set to a size corresponding to the diameter of the roller member 1. Thereby, it becomes easy to fold the 1st, 2nd shafts 2 and 4 compactly.

  In the coating roller of the present invention, the support angle of the roller member is variable, and the adjusted angle does not vary depending on the coating pressure. Therefore, it is convenient for painting work at various locations, and is particularly useful for painting places that are not normally accessible, such as the back side of walls and the back side of pillars.

DESCRIPTION OF SYMBOLS 1 Roller member 2 1st shaft 2a Bending part 2b Tip part 2c Base end part 3 Variable angle coupler 4 Second shaft 5 Handle 6 First joint 7 Second joint 8 Adjustment bolt member 9 Bolt knobs 10, 15 Shaft fixing part 11 , 16 Connection adjusting part 12, 17, 26 Coupling hole 13 Fixing female screw part 14 First uneven surface 18 Bolt insertion hole 19 Second uneven surface 20 Bolts 21, 22, 23 Rotation prevention protrusion 24 Main body part 26 Protrusion part 27 28 Female thread

In order to solve the above problems, a painting roller according to the present invention includes a roller member, a shaft that rotatably supports the roller member, and a handle to which a base end portion of the shaft is fixed. A first shaft on which the roller member is mounted and a second shaft fixed to the handle are included, and the first and second shafts are connected by a variable angle connector. The variable angle coupler includes a first joint in which a connection adjustment portion having a first uneven surface is provided and the first shaft is fixed, and a connection adjustment portion having a second uneven surface and the second shaft is fixed. And a coupling member that couples the connection adjusting portions to each other in a state where the first and second concave and convex surfaces are engaged with each other and disables relative rotation of the first and second joints. . In a state where the coupling member is loosened and the engagement between the first and second uneven surfaces is released, the first and second joints are relatively rotated, and the relative angle of the engagement between the first and second uneven surfaces is By adjusting the angle, the angle formed by the first and second shafts is variable. The first shaft includes a straight distal end portion to which the roller member is mounted, a straight proximal end portion fixed to the first joint, and a bent portion between the distal end portion and the proximal end portion. Become. The second shaft is a straight member. The first shaft and the second shaft can be folded by the angle variable coupler so that the tip portion is parallel to the second shaft.

Further, as described above, the first shaft 2 is provided with the bent portion 2a. This is to appropriately set the arrangement of the roller member 1 when the first and second shafts 2 and 4 are folded. That is, in storing, the first shaft 2 is rotated counterclockwise from the state shown in FIG. 1 and folded so that the tip 2b (see FIG. 8) on which the roller member 1 is mounted is parallel to the second shaft 4 . In this state, the bent portion 2a is provided, the distance between the tip 2b and the second shaft 4, can be set to a size corresponding to the radius of the roller member 1. Thereby, it becomes easy to fold the 1st, 2nd shafts 2 and 4 compactly.

In order to solve the above problems, a painting roller according to the present invention includes a roller member, a shaft that rotatably supports the roller member, and a handle to which a base end portion of the shaft is fixed. A first shaft on which the roller member is mounted and a second shaft fixed to the handle are included, and the first and second shafts are connected by a variable angle connector. The variable angle coupler includes a first joint in which a connection adjustment portion having a first uneven surface is provided and the first shaft is fixed, and a connection adjustment portion having a second uneven surface and the second shaft is fixed. And a coupling member that couples the connection adjusting portions to each other in a state where the first and second concave and convex surfaces are engaged with each other and disables relative rotation of the first and second joints. . In a state where the coupling member is loosened and the engagement between the first and second uneven surfaces is released, the first and second joints are relatively rotated, and the relative angle of the engagement between the first and second uneven surfaces is By adjusting the angle, the angle formed by the first and second shafts is variable. The first shaft is bent into a “<” shape at a single bent portion , and one side is a straight tip portion and the other side is a straight base end portion with the bent portion as a boundary . The roller member is attached to the distal end portion, and the proximal end portion is fixed to the first joint. The second shaft is a straight member. Ri said tip parallel to Na in the second shaft, and, so that the such a size that a distance between the second shaft and the tip corresponds to the radius of the roller member, the said first shaft The second shaft can be folded by the variable angle coupler.

Claims (6)

In a painting roller comprising a roller member, a shaft that rotatably supports the roller member, and a handle to which a base end portion of the shaft is fixed,
The shaft includes a first shaft on which the roller member is mounted and a second shaft fixed to the handle, and the first and second shafts are connected by a variable angle coupler,
The variable angle coupler includes a first joint in which a connection adjustment portion having a first uneven surface is provided and the first shaft is fixed, and a connection adjustment portion having a second uneven surface and the second shaft is fixed. And a coupling member that disables relative rotation of the first and second joints by coupling the connection adjusting portions to each other with the first and second uneven surfaces engaged. ,
In a state where the coupling member is loosened and the engagement between the first and second uneven surfaces is released, the first and second joints are relatively rotated, and the relative angle of the engagement between the first and second uneven surfaces is By adjusting the angle, the angle formed by the first and second shafts can be varied. The connection adjusting portion is in an annular shape, and the first and second uneven surfaces are provided on an annular plate surface,
2. The coating according to claim 1, wherein the central axis of the ring of the connection adjusting portion is orthogonal to the central axes of the first and second shafts of the portions fixed to the first and second joints, respectively. Roller.   3. The coating roller according to claim 2, wherein the first and second uneven surfaces are formed by radial ribs, and the engagement state of the first and second uneven surfaces is obtained when the radial unevenness meshes with each other.   4. The painting roller according to claim 2, wherein a central axis of the first shaft in a portion fixed to the first joint is arranged to be deviated with respect to a central axis of a ring of the connection adjusting portion. . The coupling member is configured by a bolt insertion hole provided in one of the connection adjustment parts, a fixed female screw part provided in the other of the connection adjustment parts, and an adjustment bolt.
The first and second joints are coupled by inserting the adjustment bolt into the bolt insertion hole and screwing it with the fixed female screw portion,
The coating roller according to any one of claims 1 to 4, wherein the coupling strength of the coupling adjustment portion is adjusted by a fastening state of the adjustment bolt and the fixed female screw portion.   The coating roller according to claim 1, wherein the first shaft has a bent portion.

Images