Support arm of massage tool

Abstract

To provide a support arm of a massage tool capable of suppressing looseness in a connection structure of an arm body to a grip part.SOLUTION: A support arm 1 of a massage tool 9 includes: a columnar arm body 10 to which the massage tool 9 is attached; and a columnar grip member 20 to be gripped by a user and having a grip side connection part 37 to be detachably connected to an arm side connection part 31 positioned at an end part on one side of the arm body 10. One of the arm side connection part 31 and the grip side connection part 37 includes a connection projection 35 to be projected toward the other one, and the other one includes a connection hole 21b into which the connection projection 35 is inserted so as to suppress relative rotation of the one and the other one. The one includes one of a nut 36 and a male screw 21f to be screwed onto the nut. The other one includes the other one of the nut 36 and the male screw 21f.SELECTED DRAWING: Figure 3

Description

[Technical field]

[0001] The present invention relates to a support arm for a massager. [Background technology]

[0002] Patent Document 1 discloses a handheld massager that uses vibrations to massage the muscles of the human body, and an arm member to which the massager is attached for pressing a massage head against a part to be massaged, such as the back.

[0003] In order to make the arm member disclosed in Patent Document 1 easier to grip, it may be possible to attach a grip member to the base end of the arm member. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Utility Model Application Publication No. 57-145423 Summary of the Invention [Problem to be solved by the invention]

[0005] However, in a connection structure in which a male screw provided at the base end of the arm member is screwed into a female screw provided on the grip member, there was a problem in that the connection part would become loose due to vibration of the massage device or swinging caused by the center of gravity.

[0006] Furthermore, in the connection structure between the arm member and the grip member, it is required that the arm member and the grip member be detachable for ease of storage and for ease of assembly by the user.

[0007] An object of the present invention is to provide a support arm for a massage device that can prevent loosening of the connecting structure between the arm body and the grip member. [Means for solving the problem]

[0008] One aspect of the present invention provides a support arm for a massager, comprising a cylindrical arm body to which a massager is attached, and a cylindrical grip member having a grip side connecting portion that is held by a user and is removably connected to an arm side connecting portion located at one end of the arm body, one of the arm side connecting portion and the grip side connecting portion having a connecting convex portion that protrudes toward the other, and the other having a connecting hole portion into which the connecting convex portion is inserted to regulate the relative rotation between the arm body and the grip member, one of the arm side connecting portion having either a nut or a male threaded portion that screws into the nut, and the other having the other of the nut or the male threaded portion.

[0009] According to one aspect of the present invention, relative rotation between the arm body and the grip member can be regulated by the connecting convex portion and the connecting hole portion, and the arm body and the grip member can be connected by the male thread portion and the female thread portion of the nut, so that the arm body and the grip member can be connected without the use of tools, etc., and loosening between the arm side connecting portion and the grip side connecting portion can be suppressed. Effect of the Invention

[0010] According to the support arm of the massage device of the present invention, loosening of the connecting structure between the arm body and the grip member can be suppressed. [Brief description of the drawings]

[0011] [Figure 1] FIG. 2 is a perspective view of a state in which a massage device is attached to a support arm according to an embodiment of the present invention. [Diagram 2] FIG. 4 is a cross-sectional view taken along the axis of the grip member of the support arm. [Diagram 3] 3 is an enlarged cross-sectional view showing a portion indicated by an arrow III in FIG. 2 and illustrating a state before the arm body and the grip member are connected to each other. [Figure 4] FIG. [Diagram 5] 4 is a cross-sectional view taken along line VV in FIG. 3 in a state in which the arm body and the grip member in FIG. 3 are connected to each other. [Figure 6] 6 is a cross-sectional view taken along line VI-VI in FIG. 3 in a state in which the arm body and the grip member in FIG. 3 are connected to each other. [Figure 7] FIG. 13 is a schematic diagram showing the state in which the massager attached to the support arm is in use. [Figure 8] 13 is a modified example of a cross section of a connecting protrusion. [Figure 9] A modified example of the connecting structure. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0012] Hereinafter, an embodiment of the present invention will be described with reference to the drawings. Note that the following description is essentially merely illustrative and is not intended to limit the present invention, its applications, or its uses. The drawings are schematic, and the ratios of dimensions, etc., differ from the actual ones.

[0013] The present invention relates to a support arm for a massager. First, a massager 9 to be inserted into a support arm 1 will be described.

[0014] As shown in Fig. 1, the massager 9 has a main body 91, a protruding portion 92, and a massage head (hereinafter, sometimes referred to as a head) 93. The main body 91 is cylindrical. A driving mechanism (not shown), such as a motor and a battery, is housed in the main body 91 to vibrate (reciprocate) the head 93 between a protruding position and a retracted position.

[0015] The protruding portion 92 extends in a direction 95 perpendicular to a longitudinal direction 94 of the main body portion 91. A link member and the like are housed in the protruding portion 92 for converting the rotational motion of the drive mechanism into linear motion and transmitting the motion to the head 93. The head 93 is detachably attached to the tip of the protruding portion 92 so as to be capable of reciprocating motion. The massager 9 is used by reciprocating the head 93 while pressing the head 93 against the part of the user to be massaged.

[0016] Next, the support arm 1 will be described. In the following description of the embodiment, terms indicating directions such as "upper", "lower", "left", "right", "front", "back", "height", "width", "front-rear" and the like refer to directions as seen from the user side when the grip member 20 of the support arm 1 is disposed in front of the user and the axis C1 of the grip member 20 extends in the vertical direction as shown in Fig. 2, unless otherwise specified. In the following description, the "vertical direction" refers to the direction in which the axis C1 extends, the "front-rear direction" refers to a direction perpendicular to the "vertical direction" and the user side refers to the rear direction, the opposite direction refers to the forward direction, and the "width (left-right) direction" refers to the left-right direction of the user.

[0017] As shown in FIG. 1, the support arm 1 has a columnar arm body 10 to which a massage device 9 is attached, a columnar grip member 20 to be held by a user, and a connecting structure 30 that connects the arm body 10 and the grip member 20.

[0018] 2, the arm body 10 is made of a hollow columnar member made of, for example, an aluminum alloy, etc. The arm body 10 has a first portion 11 extending upward from the tip of the grip member 20, a first bent portion 12 continuing to the upper end of the first portion 11, and a second portion 13 continuing to the first portion 11 via the first bent portion 12.

[0019] The first portion 11 has a base end 11a located on the grip member 20 side, and an upper end 11b continuing to the first bent portion 12. The first portion 11 extends from the base end 11a toward the opposite side to the grip member 20. The first portion 11 has a second bent portion 14 between the base end 11a and the upper end 11b.

[0020] The first portion 11 has a lower portion 14a that extends linearly on the grip member 20 side from the second bent portion 14, and an upper portion 14b that extends linearly on the upper end portion 11b side from the second bent portion 14. The lower portion 14a extends upward along the axis C1 of the grip member 20, and the axis C2 of the lower portion 14a coincides with the axis C1. The upper portion 14b is inclined backward with respect to the axis C1 of the grip member 20. The second bent portion 14 is configured to incline the upper portion 14b backward with respect to the lower portion 14a and the grip member 20. The angle α1 formed between the direction in which the axis C2 of the lower portion 14a extends and the direction in which the axis C3 of the upper portion 14b extends is, for example, 15 degrees or more and 20 degrees or less, and is preferably about 18 degrees. Although not shown, the lower portion 14a is provided with a stopper portion that prevents the nut 36, which will be described later, from moving beyond the second bent portion 14 to the upper portion 14b. The stopper portion may be a portion of the lower portion 14a formed in an upwardly expanding tapered shape, a crushing portion such as a rivet, a convex portion or a bulging portion formed by stamping, or any other portion that can abut against the upper surface of the nut 36 to prevent it from moving upward.

[0021] The second portion 13 is inclined downward from the tip of the first bent portion 12 toward the rear. The first bent portion 12 is configured to incline the second portion 13 backward and downward with respect to the direction in which the axis C1 of the grip member 20 extends. The angle α2 formed between the direction in which the axis C3 of the upper portion 14b extends and the direction in which the axis C4 of the second portion 13 extends is larger than the angle α1, and is, for example, 75 degrees or more and 85 degrees or less, preferably about 80 degrees. The first bent portion 12 separates the tip portion 13a of the second portion 13 backward with respect to the axis C1. Such an angle α2 of the arm body 10 is a shape that makes it easy to massage the back with the massager 9 without lifting the grip member 20 significantly upward.

[0022] A holder 40 for detachably holding the massage device 9 is disposed at the tip 13a of the second portion 13. The holder 40 is made of synthetic resin such as ABS resin, polycarbonate, etc. The holder 40 is spaced rearward from the axis C1.

[0023] 1 and 2, the holder 40 has a peripheral wall portion 41 and a boss portion 42 for mounting to the support arm 1. The direction in which the axis O1 of the peripheral wall portion 41 extends coincides with the direction in which the axis C4 of the second portion 13 extends, and the holder 40 is cylindrical with an opening in the direction of the axis C4 of the second portion 13. The peripheral wall portion 41 is provided with a notch portion 43 cut out of the peripheral wall portion 41 so as to communicate between the inside and outside of the peripheral wall portion 41.

[0024] As shown in FIG. 1, the massager 9 is inserted from the tip side of the peripheral wall portion 41 with the longitudinal direction 94 of the main body portion 91 aligned with the axis O1 of the peripheral wall portion 41, and is attached to the holder 40 by inserting the protrusion 92 of the massager 9 into the cutout portion 43.

[0025] 2, the grip member 20 is detachably connected to the arm body 10 via a connecting structure 30. The upper end of the grip member 20 is connected to the base end portion 11a of the first portion 11. The extension direction of the axis C1 of the grip member 20 coincides with the extension direction of the axis C2 of the lower portion 14a.

[0026] The grip member 20 has a grip core 21 connected to the lower portion 14a and a casing 22 attached to the outside of the grip core 21.

[0027] The grip core 21 is a hollow cylindrical aluminum alloy. The grip core 21 extends in the vertical direction. An upper end 21a (shown in FIG. 3) of the grip core 21 has a part of a connecting structure 30 that is connected to the arm body 10. The connecting structure 30 will be described in detail later.

[0028] The grip core 21 has a through hole 21g that penetrates in a direction perpendicular to the axis C1 of the grip member 20. In this embodiment, the through holes 21g are provided in two places, one on the upper end side and one on the lower end side of the grip core 21. A protrusion 22c protruding from the casing 22 is adapted to be inserted into the through hole 21g.

[0029] The casing 22 is located outside the grip core portion 21 and extends along the axis C1. The casing 22 extends from the lower end of the male thread portion 21f (shown in FIG. 3) provided on the upper end portion 21a (shown in FIG. 3) of the grip core portion 21 to below the grip core portion 21. The casing 22 is formed, for example, from a synthetic resin.

[0030] As shown in Fig. 1, the casing 22 has a first case 22a and a second case 22b divided along the direction in which the axis C1 of the grip member 20 extends. The first case 22a and the second case 22b are divided on one side and the other side in the width direction. The first case 22a and the second case 22b are arranged overlapping each other in the width direction via the grip core 21. The cross sections of the first case 22a and the second case 22b as viewed in the direction of the axis C1 are C-shaped (see Fig. 6).

[0031] As shown in Fig. 1 and Fig. 2, a parting line PL is formed on the mating surface between the first case 22a and the second case 22b. In this embodiment, the parting line PL is located in the front-rear direction of the grip member 20 and extends in the up-down direction. As shown in Fig. 1, when the support arm 1 is placed on a horizontal placement surface without being gripped by a user, one side in the width direction of the support arm 1 (the right side in Fig. 1) is oriented vertically. When the support arm 1 is placed, the parting line PL is prevented from appearing when viewed from the vertical direction.

[0032] 2, the first case 22a and the second case 22b are provided with mutually engaging protrusions 22c at the upper and lower end sides thereof at positions corresponding to the through hole 21g of the grip core 21. The protrusions 22c are inserted into the through hole 21g of the grip core 21 and engaged with each other at the inner periphery of the grip core 21. This fixes the position of the casing 22 relative to the grip core 21. The parting line PL is located in the front-rear direction of the grip member 20 (a direction perpendicular to the axis C1 and the direction in which the through hole 21g extends) and extends along the axis C1.

[0033] The connecting structure 30 will be described with reference to FIGS.

[0034] As shown in FIGS. 3 and 4, the connecting structure 30 has an arm side connecting part 31 provided on the arm body 10 and a grip side connecting part 37 provided on the grip member 20.

[0035] The arm side connecting portion 31 has a connecting protrusion 35 that protrudes from the base end portion 11a of the first portion 11 toward the grip side connecting portion 37, and a nut 36 arranged on the outside of the first portion 11.

[0036] The connecting protrusion 35 is provided on the connecting member 32, which is inserted into and fixed to a fixing hole 11c arranged in the base end 11a. The nut 36 is rotatable with respect to the arm body 10. The fixing hole 11c is formed by enlarging the inner diameter D1 of the first portion 11. The dimension d1 of the fixing hole 11c in the front-rear direction is larger than the inner diameter D1 of the first portion 11 (see FIG. 5).

[0037] 3 and 4, the connecting member 32 is attached to the base end 11a of the first portion 11. The connecting member 32 is made of an aluminum alloy and has a flange portion 34 in the center in the up-down direction. The connecting member 32 has a fixing portion 33 that is located above the flange portion 34 and is inserted into and fixed to a fixing hole portion 11c provided in the base end 11a, and a connecting protrusion 35 that is located below the flange portion 34 and is inserted into a connecting hole portion 21b described below.

[0038] An outer diameter D5 of the flange portion 34 is set to be larger than an outer diameter D4 of the first portion 11 (see FIG. 5). When the fixing portion 33 is inserted into the fixing hole portion 11c, the flange portion 34 abuts against the lower end surface 11g of the first portion 11, thereby determining the insertion amount of the fixing portion 33. Therefore, the flange portion 34 functions as a stopper for the connecting member 32.

[0039] 3, with the connecting member 32 fixed to the fixing hole portion 11c, the connecting protrusion 35 protrudes from the fixing hole portion 11c toward the grip side connecting portion 37. The connecting protrusion 35 is inserted into the connecting hole portion 21b provided in the upper end portion 21a of the grip core portion 21. For convenience of explanation, the connecting protrusion 35 will be described later together with the grip side connecting portion 37.

[0040] 3 and 4, the nut 36 has a female thread portion 36d on its inner surface. The nut 36 penetrates in the vertical direction and is disposed on the outer periphery side of the first portion 11. The inner diameter side of the nut 36 is formed with a small diameter portion 36a located on the upper side (first portion 11 side) and a large diameter portion 36b located on the lower side (grip member 20 side).

[0041] An inner diameter D7 of the small diameter portion 36a is set to be smaller than an outer diameter D5 of the flange portion 34. An inner diameter D8 of the large diameter portion 36b is set to be larger than the outer diameter D5 of the flange portion 34. A step portion 36c is formed between the small diameter portion 36a and the large diameter portion 36b. A vertical length L4 of the large diameter portion 36b is larger than a thickness L5 of the flange portion 34.

[0042] The female thread portion 36d is provided on the inner diameter side of the nut 36. More specifically, the female thread portion 36d is provided on the lower end side of the large diameter portion 36b, and is provided in an area obtained by subtracting the thickness L5 of the flange portion from the length L4 of the large diameter portion 36b.

[0043] 3, in this embodiment, after a nut 36 is inserted into the first portion 11, the fixing portion 33 of the connecting member 32 is inserted into the fixing hole portion 11c and fixed to the arm side connecting portion 31, so that a connecting protrusion 35 protrudes toward the grip member 20 (downward) from the base end portion 11a of the first portion 11. In other words, the arm side connecting portion 31 has a connecting protrusion 35 protruding toward the grip side connecting portion 37 and a nut 36 having a female thread portion 36d on its inner surface, and the arm main body 10 has the arm side connecting portion 31.

[0044] Since the inner diameter D7 of the small diameter portion 36a of the nut 36 is smaller than the outer diameter D5 of the flange portion 34, the step portion 36c abuts against the upper surface 34a of the flange portion 34. This prevents the nut 36 from coming off the first portion 11.

[0045] Since the vertical length L4 of the large diameter portion 36b is greater than the thickness L5 of the flange portion 34, when the step portion 36c of the nut 36 is in contact with the upper surface 34a of the flange portion 34, the lower side of the large diameter portion 36b of the nut 36 protrudes toward the grip member 20 beyond the lower surface 34b of the flange portion 34. The female thread portion 36d is provided on the lower end side of the large diameter portion 36b, and is configured to be able to be screwed into the male thread portion 21f of the grip side connecting portion 37.

[0046] 3 and 4, the grip side connecting portion 37 has a connecting hole portion 21b into which the connecting protrusion 35 is inserted, and a male thread portion 21f into which the nut 36 is screwed. The connecting protrusion 35 is connected to the connecting hole portion 21b so as to be freely detachable (freely insertable and removable).

[0047] 3 and 6, the connecting hole 21b is formed on the inner diameter side of the upper end 21a of the grip core 21. The connecting hole 21b is formed by enlarging the inner diameter of the grip core 21. The dimension d3 in the front-rear direction and the dimension d4 in the width direction of the connecting hole 21b are larger than the inner diameter D2 of the grip core 21.

[0048] The cross-sectional shape of the connecting hole 21b when viewed in the axis C1 direction of the grip core 21 preferably has a corner. Here, the corner includes a case where the corner is rounded or chamfered as shown in Fig. 6. The cross-sectional shape of the connecting hole 21b when viewed in the axis C1 direction is rotationally symmetrical at 180 degrees around the axis C1 (a two-fold symmetric figure), and in this embodiment, has a rectangular shape. The connecting hole 21b has two short side surfaces 21c and two long side surfaces 21d.

[0049] 4 and 6, the cross section S2 of the connecting protrusion 35 when viewed in the direction of the axis C1 has a shape complementary to the connecting hole 21b, and in this embodiment, is rectangular. This restricts the relative rotation of the connecting protrusion 35 with respect to the connecting hole 21b. Like the connecting hole 21b, the cross section S2 preferably has a shape including corners, and more preferably has 180-degree rotational symmetry around the axis C1 (in other words, a two-fold symmetric figure, or in other words, a 180-degree point symmetric figure).

[0050] The dimensions of the connecting protrusion 35 in the front-rear direction and width direction are larger than the inner diameter D2 of the grip core 21, and are approximately equal to the dimension d3 in the front-rear direction and the dimension d4 in the width direction of the connecting hole 21b. The axial length L2 of the connecting protrusion 35 is set to approximately match the connecting hole 21b. The connecting protrusion 35 is formed in a tapered shape with the side surface inclined downward toward the axis C1 side. This guides the insertion of the connecting protrusion 35 into the connecting hole 21b.

[0051] The outer diameter D6 of the grip core 21 is set to be larger than the outer diameter D5 of the flange portion 34. When the connecting protrusion 35 is inserted into the connecting hole portion 21b, the flange portion 34 abuts against the end face 21h of the grip core 21, thereby determining the insertion amount of the connecting protrusion 35. Therefore, the flange portion 34 functions as a stopper for the connecting member 32.

[0052] 3 and 4, the male threaded portion 21f is formed on the outer diameter side of the upper end portion 21a of the grip core portion 21. The male threaded portion 21f screws into the female threaded portion 36d of the nut 36 of the grip side connecting portion 37. The arm body 10 and the grip member 20 are connected by inserting the connecting protrusion 35 into the connecting hole portion 21b and then screwing the nut 36 into the male threaded portion 21f.

[0053] The above configuration provides the following effects.

[0054] (1) The support arm 1 of the massager 9 comprises a cylindrical arm body 10 to which the massager 9 is attached, and a cylindrical grip member 20 which is held by a user and has a grip side connecting portion 37 which is removably connected to an arm side connecting portion 31 located at one end of the arm body 10. The arm side connecting portion 31 has a connecting protrusion 35 which protrudes toward the other side and a nut 36. The grip side connecting portion 37 has a connecting hole portion 21b into which the connecting protrusion 35 is inserted to regulate the relative rotation between the arm side connecting portion 31 and the grip side connecting portion 37, and a male thread portion 21f which screws into the nut 36.

[0055] According to one aspect of the present invention, the relative rotation between the arm body 10 and the grip member 20 can be restricted by the connecting protrusion 35 and the connecting hole 21b, and the arm body 10 and the grip member 20 can be connected by the male thread portion 21f and the female thread portion 36d of the nut 36. Since the relative rotation between the arm body 10 and the grip member 20 is restricted, loosening between the arm side connecting portion 31 and the grip side connecting portion 37 can be suppressed.

[0056] (2) The arm body 10 has a first portion 11 extending from the arm side connecting portion 31 toward the opposite side of the grip member 20, and a second portion 13 that is connected to the upper end portion 11b of the first portion 11 via a first bend portion 12 and extends at an angle relative to the axis C1 of the grip member 20, to the tip portion 13a of which the massage device 9 is attached.

[0057] According to this configuration, as shown in FIG. 2, the grip member 20 can be grasped with the first part 11 positioned in front of the user and the second part 13 positioned behind the user, so that the massager 9 attached to the tip 13a of the second part 13 can be easily pressed against the part to be massaged that is located behind the user, such as the shoulder or waist.

[0058] 2, the axis C1 of the grip member 20 and the axis C4 of the second portion 13 intersect, and the massage device 9 is attached to the tip 13a of the second portion 13, so that the massage device 9 is separated from the axis C1 of the grip member 20. Therefore, except for the case where the massage device 9 is used with the axis C4 of the second portion 13 facing downward, as shown in FIG. 7, a moment that tries to rotate the second portion 13 around the axis C1 of the grip member 20 is generated due to gravity acting on the massage device 9 (see arrow A in FIG. 7).

[0059] As a result, when the grip member 20 and the arm body 10 are directly screwed together by rotation of the second part 13 about the axis C1, loosening may occur between the two; however, since the relative rotation between the grip member 20 and the arm body 10 is restricted by the connecting protrusion 35 and the connecting hole portion 21b, loosening between the grip member 20 and the arm body 10 is suppressed.

[0060] (3) The cross section S2 of the connecting protrusion 35 when viewed in the direction of the axis C1 of the grip member 20 is rotationally symmetrical at 180 degrees or 360 degrees about the axis C1 of the grip member 20, so that the connecting direction of the grip member 20 to the arm body 10 can be defined to two or less directions. For example, when the casing 22 of the grip member 20 is formed in a split structure and has a parting line PL, the direction of the parting line PL to the arm body 10 can be defined.

[0061] (4) The grip member 20 has a parting line PL formed by the mating surfaces of the first case 22a and the second case 22b that are separated along the direction in which the axis C1 of the grip member 20 extends.

[0062] According to this configuration, the position of the parting line PL of the grip member 20 is controlled since the posture of the grip member 20 around the axis C1 with respect to the arm body 10 is regulated. In this embodiment, the parting line PL is arranged in the front-rear direction of the grip member 20, so that when the support arm 1 is placed without being gripped by a user as shown in FIG. 1, one side in the width direction of the support arm 1 (the right side in FIG. 1) faces upward, and the parting line PL is prevented from appearing on the upper side when the support arm 1 is placed. Therefore, even when the casing 22 has a divided structure with good manufacturing efficiency, the aesthetic appearance of the support arm 1 can be improved.

[0063] (5) Since the cross section S2 of the connecting protrusion 35 is rectangular, the relative rotation between the arm body 10 and the grip member 20 can be more easily restricted.

[0064] In the present embodiment, the cross section S2 of the connecting protrusion 35 is rectangular, but is not limited thereto. For example, the cross section of the connecting protrusion 35 may be a square (four-fold symmetry, 90-degree point symmetric figure) as shown in Fig. 8(a), a trapezoid (one-fold symmetry, 360-degree point symmetric figure) as shown in Fig. 8(b), a hexagon (six-fold symmetry, 60-degree point symmetric figure) as shown in Fig. 8(c), or a D-shape (one-fold symmetry, 360-degree point symmetric figure) as shown in Fig. 8(d). This configuration can minimize the corners, thereby restricting the relative rotation between the arm body 10 and the grip member 20 while suppressing wear between the connecting parts. In addition, the cross section of the connecting protrusion 35 may be a WD shape (a shape in which two opposing sides of a rectangular shape are bent into an arc, and which has two-fold symmetry and a 180-degree point symmetric figure) as shown in Figure 8(e), or may be an equilateral triangle shape (a three-fold symmetry and a 120-degree point symmetric figure) as shown in Figure 8(f), or may be an isosceles triangle shape (a one-fold symmetry and a 360-degree point symmetric figure) as shown in Figure 8(g).

[0065] In the present embodiment, the arm side connecting portion 31 is provided with the connecting protrusion 35 and the nut 36, and the grip side connecting portion 37 is provided with the connecting hole portion 21b and the male thread portion 21f. However, the present invention is not limited to this. For example, as shown in FIG. 9, the connecting structure 130 may be provided with a nut 136 having a connecting hole portion 111c and a female thread portion 136d in the arm side connecting portion 131, and a connecting protrusion 133 and a male thread portion 121f in the grip side connecting portion 137. In this case, the connecting portion 135 of the connecting member 132 may be fixed to the connecting hole portion 121b provided in the tip portion 121a of the grip core portion 121. Also, although not shown in the figures, in another embodiment, the arm side connecting portion may be provided with a connecting hole portion and a male thread portion, and the grip side connecting portion may be provided with a connecting protrusion portion and a nut; or, in yet another embodiment, the arm side connecting portion may be provided with a connecting protrusion portion and a male thread portion, and the grip side connecting portion may be provided with a connecting hole portion and a nut.

[0066] In this embodiment, an example has been described in which the connecting member 32 is configured as a separate part from the arm body 10, but the connecting member 32 may be configured integrally with the arm body 10.

[0067] The present invention is not limited to the configurations described in the above embodiments, and various modifications are possible.

[0068] [Additional Note] The present disclosure includes the following aspects.

[0069] [Aspect 1] A columnar arm body to which a massager can be attached; a columnar grip member that is held by a user and has a grip-side connector that is detachably connected to an arm-side connector located at one end of the arm body; One of the arm side connecting portion and the grip side connecting portion has a connecting protrusion protruding toward the other one, the other has a connecting hole into which the connecting protrusion is inserted to restrict relative rotation between the arm body and the grip member, The one of the two has either a nut or a male thread portion that screws into the nut, The other of the nut and the male thread portion is provided Massager support arm.

[0070] [Aspect 2] The arm body has a first portion extending from the arm side connecting portion toward the opposite side of the grip member, and a second portion continuing to an upper end portion of the first portion via a bent portion, extending at an angle with respect to the axis of the grip member, and having the massage device attached to its tip. A support arm for the massager of embodiment 1.

[0071] [Aspect 3] A cross section of the connecting protrusion when viewed in the axial direction of the grip member is rotationally symmetrical about the axis of the grip member by 180 degrees or 360 degrees. A support arm of the massager according to embodiment 1 or 2.

[0072] [Aspect 4] The grip member has a parting line formed by mating surfaces of a first case and a second case that are divided along the direction in which the axis of the grip member extends. A support arm of a massager according to any one of aspects 1 to 3.

[0073] [Aspect 5] The cross section of the connecting protrusion is rectangular. A support arm of a massager according to any one of aspects 1 to 4. [Explanation of symbols]

[0074] 1 Support Arm 9 Massager 10 Arm body 11 Part 1 11b Upper end 12 1st bending part 13 Part 2 13a Tip 20 Grip material 21b Connection hole 21f Male thread 22a Case 1 22b Case 2 31 Arm side connection part 37 Grip side connection part 35 Connecting protrusion 36 Nut 36d Female thread C1 axis PL parting line S2 cross section

Claims

1. A pillar-shaped arm body to which the massager is attached, a grip member that is held by a user and has a grip-side connecting portion that is detachably connected to an arm-side connecting portion located at one end of the arm body, one of the arm-side connecting portion and the grip-side connecting portion has a connecting protrusion protruding toward the other, the other has a connecting hole into which the connecting protrusion is inserted to restrict relative rotation between the arm body and the grip member, The one of the two has either a nut or a male thread portion that screws into the nut, The other of the nut and the male threaded portion is provided Massager support arm.

2. The arm body has a first portion extending from the arm-side connecting portion toward the opposite side of the grip member, and a second portion that is continuous with the upper end of the first portion via a bent portion, extends at an angle with respect to the axis of the grip member, and has the massage device attached to its tip. The support arm of the massager according to claim 1.

3. The cross section of the connecting protrusion when viewed in the axial direction of the grip member is rotationally symmetrical about the axis of the grip member by 180 degrees or 360 degrees.

3. A support arm for a massager according to claim 1 or 2.

4. The grip member has a parting line formed by mating surfaces of a first case and a second case that are separated along the direction in which the axis of the grip member extends. The support arm of the massager according to claim 3.

5. The cross section of the connecting protrusion is rectangular.

3. A support arm for a massager according to claim 1 or 2.

Images