JP2010158663A - Fluid operation machine, shower head, and air tool - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To reduce wear of members concerning a fluid operation machine, a shower head, and air tools. <P>SOLUTION: In this shower head 100, water inside a grip 2 jets out obliquely from a water path port 19 into the head body 1, impinging on blades 6 to rotate a rotor 5. When the rotor 5 is rotated, a projection 9 protruding into the hollow shaft of the rotor 5 is rotated, while a rod body 8 is not rotated as its rotation is regulated by a slide key 62. As a result, the rod body 8 reciprocates forward and backward by the action of the projection 9 and a cam groove 10. Since the rod body 8 has a head 15 mounted on its tip, a user performs massaging by pressing the head 15 reciprocating with the rod body 8 to a desired part of the user's body. Also, the water impinged on the blades 6 and entered in the head body 1 spouts like a shower from a number of jetting ports 3 of a water spraying lid 4. Since only the rod body 8 reciprocates in this shower head 100, wearing parts decrease as a whole. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a fluid working machine, a shower head, and an air tool that cause a withdrawal movement by a fluid such as air or water.

  The conventional shower head with a massage function shown in Patent Document 1 has a structure in which a rotating cam is provided in a water wheel provided in a water wheel chamber of the shower head, and a protrusion that slides on the rotating cam is formed inside the water wheel chamber. . The water wheel is always urged by the coil, but when the water wheel is rotated by hydraulic power, the massage movable part moves out and retracts by the action of the rotating cam and the protrusion. Hot water is ejected from the ejection holes.

JP-A-2-40251

  The problem to be solved is that the massage movable part is taken out by the coil and water pressure, and the retreating operation is performed by the rotating cam and the protrusion, so that the water wheel is always urged to the casing by the coil, and the contact surface The frictional resistance is increased, and the rotational force of the water turbine is attenuated. The second problem is that the massage movable part rotates and moves out, so that when pressed against the body, the skin is twisted or the hair is entangled.

  The fluid working machine according to the present invention includes a hollow main body having a water passage opening for ejecting fluid therein and an outlet for the fluid, a plurality of blades disposed in the main body, and a cam inside the hollow shaft. A rotor having a protrusion, and a rod body in which one end of the rotor is pivotally supported in the main body and the other end protrudes from the main body and is pivotally supported, and a cam groove into which the cam protrusion is inserted is formed in the circumferential direction. It is characterized by having.

  Further, the fluid working machine according to the present invention is further characterized in that, in the above-mentioned invention, the slide means further comprises a slide protrusion formed between the main body and the rod, and a slide groove or a slide hole long in the axial direction in which the slide protrusion enters. It is provided with.

  Further, in the fluid working machine according to the present invention, in the above invention, the bearing provided on the main body further includes one end of the rod body slidably inserted inside a cylindrical projection protruding from the inner side of the main body, and rotates. A bearing is disposed between the end of the hollow shaft of the child and the end edge of the cylindrical projection.

  In the fluid working machine according to the present invention, the fluid outlet of the main body faces the protruding side of the rod body in the above invention.

  The fluid working machine according to the present invention is characterized in that, in the above invention, an attachment attaching / detaching portion is provided at an end protruding from the main body of the rod.

  The fluid working machine according to the present invention is characterized in that, in the above invention, the main body is provided with a grip that also serves as a fluid introduction pipe.

  In the shower head of the present invention, the fluid working machine is provided in the head, and water is supplied to the rotor through a grip provided in the main body.

  The shower head according to the present invention is characterized in that the fluid working machine is provided in the head, water is supplied to the rotor through a grip provided in the main body, and the outlet is an ejection hole for ejecting water. To do.

  The pneumatic tool of the present invention is characterized in that a tool is provided on the rod body of the fluid working machine, and the outlet of the fluid can be directed to the tool.

  The air tool according to the present invention is characterized in that a tool is provided on the rod body of the fluid working machine, and a suction pipe connected in the middle of the fluid outlet pipe can be directed to the tool.

It is side surface sectional drawing which shows the shower head of this invention. It is front sectional drawing of the shower head shown in FIG. It is an expanded sectional view near the first bearing. It is an expanded sectional view near the 2nd bearing. It is explanatory drawing which shows a cam curve. It is sectional drawing which shows the tool concerning Embodiment 2 of this invention. It is sectional drawing which shows the air tool which concerns on another embodiment. It is sectional drawing which shows the air tool which concerns on another embodiment.

(Embodiment 1)
FIG. 1 is a side sectional view showing a shower head according to the present invention. 2 is a front sectional view of the shower head shown in FIG. The shower head 100 includes a head main body 1, a grip 2 serving as a water introduction pipe connected to the head main body 1, and a water discharge lid 4 having a large number of ejection holes 3 and having a bearing in the center. Yes. The head main body 1 is hollow with the water discharge lid 4 attached thereto, and a rotor 5 is provided therein. The rotor 5 has a plurality of blades 6 radially in the radial direction. A rod body 8 is slidably inserted into the hollow shaft 7, and the rotor 5 rotates about the rod body 8. The head main body 1 (including the water discharge lid 4), the grip 2, the rod body 8, and the rotor 5 are made of resin.

  One end of the rod 8 is slidably supported by a first bearing 50 provided inside the head body 1, and the other end is slidable by a second bearing 60 of the water discharge lid 4 of the head body 1. Be supported. Further, the other end of the rod 8 protrudes outward from the second bearing 30 of the water discharge lid 4. The hollow shaft 7 of the rotor 5 is provided with two protrusions 9 protruding from the center. The protrusion 9 is made of a stainless steel pin, screwed in from the outside of the hollow shaft 7 of the rotor 5, and fixed so that the tip thereof becomes the protrusion 9. On the other hand, the rod body 8 is formed with a cam groove 10 into which the protrusion 9 is inserted.

As shown in FIG. 5, the cam mechanism including the cam groove 10 and the protrusion 9 has a cam curve wavelength corresponding to a half circumference of the rod 8. That is, since one rotation of the rotor 7 makes two cycles, the rod body 8 performs two withdrawals. Note that the frequency can be doubled by setting the wavelength of the cam curve to ¼ of the rod 8.

  FIG. 3 is an enlarged cross-sectional view in the vicinity of the first bearing. In the first bearing 50, one end 52 of the rod body 8 is slidably inserted into a cylindrical protrusion 51 protruding from the inside of the head body 1. The end 53 of the hollow shaft 7 of the rotor 5 covers the periphery of the cylindrical protrusion 51, and the edge 54 of the cylindrical protrusion 51, the surface 55 of the rod 8, and the hollow inner wall 56 (cylinder) of the rotor 5. The diameter of the portion covering the projection 51 is increased, and the storage portion 59 of the first bearing 50 is formed by the large-diameter inner surface 57 and the stepped portion 58). The storage portion 59 is made of stainless steel balls. A bearing 70 is arranged. One end 52 of the rod 8 is inserted to a position deeper than the stroke of the rod 8 with respect to the cylindrical protrusion 51. In other words, the insertion amount of the cylindrical projection 51 and the rod body 8 is larger than the maximum stroke amount of the rod body 8 moving in and out, and is inserted to such an extent that the rod body 8 does not come out even if the rod body 8 moves in and out. From another viewpoint, since the bearing 70 is disposed between the end of the hollow shaft 7 of the rotor 5 and the end of the cylindrical protrusion 51, axial force is applied to the rotor 5. However, the rotation of the rotor 5 does not stop.

  FIG. 4 is an enlarged cross-sectional view in the vicinity of the second bearing. A male screw 11 is formed around the water discharge lid 4. The male screw 11 is screwed into a female screw 12 formed inside the opening of the head main body 1, and is attached to the rod body by the central second bearing 60. 8 is supported in a movable state. Two slide grooves 61 are formed opposite to each other in the axial direction in the second bearing 60, and a slide key 62 (slide protrusion) is loosely fitted in the slide groove 61 so as to be slidable. The key 62 is loosely fitted into the groove 63 of the rod 8. The slide key 62 is made of resin or stainless steel. The rod 8 is not rotated within the hollow shaft 7 of the rotor 5 by the slide groove 61 and the slide key 62 (not movable in the circumferential direction), and is movable only in the axial direction.

  The slide groove 61 and the slide key 62 may be replaced with a long hole and a cylindrical pin. Further, the slide groove 61 may be provided on the rod body 8 side. Further, the slide key 62 may be integrally formed with the rotor 7 or the rod body 8 (both not shown).

  When the slide key 62 is fitted into the slide groove 61 of the second bearing 60, the remaining length of the slide groove 61 is longer than the stroke amount of the rod 8. An O-ring 66 is provided between the end edge 64 of the second bearing 60 and the end edge 65 of the rotor 5. Since the rotor 5 does not move in and out, only the O-ring 66 is sufficient. The inner diameter of the O-ring 66 is larger than the outer diameter of the rod body 8 so that a certain gap is generated.

  The other end 13 of the rod 8 protrudes from the second bearing 60, and a female screw 14 serving as an attaching / detaching portion is formed at the tip. A resin massage head 15 is screwed into the female screw 14. The head 15 has, for example, a conical shape with a small hemispherical tip, and can be replaced with a shape suitable for each part of the body to be massaged. In short, the massage head 15 as an attachment can have various shapes if it has a male screw 16 that can be screwed into the female screw 14.

  When the head 15 is screwed to the end, the rear edge 17 comes into contact with the second bearing 60, and the rod body 8 is pulled from the head body 1 and is fixed as it is. In this way, the movement of the rod 8 is prevented. Further, if the head 15 is not screwed to the end, the head 15 can freely move in and out.

  As shown in FIG. 2, the head body 1 has a hollow structure, and a partition wall 18 is formed between the head body 1 and the grip 2, and one water channel port 19 is provided obliquely with respect to the partition wall 18. . By forming the water channel opening 19 at an angle, the water hits the blade 6 at a certain angle and pushes the blade 6 to give the rotor 5 a rotational force. A large force can be obtained by reducing the diameter of the water channel port 19 and providing an injection angle. A plurality of waterway openings 19 may be provided.

  The grip 2 is hollow and has a divided structure, and a grip 2 having a predetermined length is obtained by attaching an extension member 20. This has a split structure due to molding problems, and a relatively short grip can be formed without a split structure.

  Next, the operation of the shower head 100 will be described. The shower head 100 is used by connecting a hose (not shown) for supplying water to the grip 2. When the grip 2 is filled with water, the pressure in the grip 2 is increased, and water is ejected obliquely from the water channel opening 19 into the head body 1. This water hits the blade 6 and the rotor 5 rotates. When the rotor 5 rotates, the protrusion 9 protruding into the hollow shaft of the rotor 5 rotates. On the other hand, the rotation of the rod body 8 is regulated by the slide key 62, so the rod body 8 does not rotate. As a result, the rod body 8 moves back and forth by the action of the protrusion 9 and the cam groove 10. Since the head 15 is attached to the tip of the rod 8, the user performs massage by pressing the head 15 moving in and out with the rod 8 against a desired part of the body. Further, the water that hits the blades 6 and enters the head main body 1 is ejected in a shower shape from the numerous ejection holes 3 of the water discharge lid 4.

  Further, when the head 15 is pressed against the body, an axial force is applied to the rotor 5 via the cam groove 10 and the protrusion 9, but the bearing 70 disposed in the storage portion 59 receives this, so the rotor 5 and the cylindrical projection 51 are alleviated, and the rotational force can be prevented from being attenuated.

  As described above, in the shower head 100 of the present invention, for example, massage can be performed by applying the head 15 that moves out and moves while showering to the body. Moreover, since only the rod body 8 moves in and out, there are fewer parts that wear out as a whole. Therefore, the product life is extended. Further, since the rotor 5 is not always urged by the cylindrical projection 51, the frictional resistance with the cylindrical projection 51 can be extremely reduced. Further, since the rod 8 does not rotate, the skin is not twisted even when pressed against the body, and the hair does not get tangled. Furthermore, since the rotor 5 is rotated by water pressure, and only this rotational force is converted into the retracting operation, the retracting motion is performed with a uniform force.

  Further, the movement of the head can be adjusted by the amount of water supplied. In addition, the number of retreating movements can be increased by shortening the cycle of the cam groove 10 shown in FIG. Furthermore, the back can be massaged by using a member 20 for extending the split structure having a length of 30 cm or more.

(Embodiment 2)
FIG. 6 is a cross-sectional view showing an air tool according to a second embodiment of the present invention. The basic structure of the air tool 200 is the same as the internal structure of the shower head 100 according to the first embodiment, but the grip 202 is disposed so as to turn from the side surface of the head body 1 to the back side, and the other end 13 of the rod body 8. The difference is that a prismatic grindstone 201 is attached. The description of the same structure as that of Embodiment 1 is omitted. In the air tool 200, the working fluid is air. The grip 202 has a hollow portion 203, and this hollow portion 203 is connected to an air compressor (not shown) via a hose 204, and the air flows from the head body 1 through the ejection hole 3 of the water discharge lid 4 to the grindstone 201. Erupts toward. Unlike the case of the shower head, this ejection hole 3 may be one or a small number (for example, 10 or less).

  The air tool 200 can grind the corner of the workpiece because the prismatic grindstone 201 moves in and out. Further, since air is always ejected to the workpiece being polished by the air tool 200, the polishing powder generated by the grindstone 201 can be always purged. Moreover, the tool attached to the other end 13 of the rod 8 is not only a grindstone but also a file, a metal brush, or the like.

  FIG. 7 is a cross-sectional view showing an air tool according to another embodiment. In this air tool 250, an air outlet is provided on the side opposite to the inlet (water channel port 19) of the head body 1, and the purge air is ejected by pulling the purge lever 251. A tube 253 is provided at the outlet 252 of the head body 1, and this tube 253 is branched at a branching portion 254. One is an outlet pipe 255 branched so as to emit air to the side of the head body 1, and the other is an ejection pipe 256 provided with a flexible hose 257. The tip of the flexible hose 257 can be directed near the grindstone 201. The branch part 254 is provided with a purge lever 251, and the branch part 258 is provided with a valve 258 for switching the air flow.

  When the purge lever 251 is not pulled, the air passes through the outlet pipe 255 that allows air to escape to the side of the head main body 1 and is discharged. Air flows through the ejection pipe 256 to which the flexible hose 257 is connected. Since the tip of the flexible hose 257 can be positioned in the vicinity of the grindstone 201, the abrasive powder of the grindstone 201 can be purged with air from the tip of the flexible hose 257.

  FIG. 8 is a cross-sectional view showing an air tool according to another embodiment. In this tool 260, a pipe 263 is provided at the outlet 262 of the head body 1, and this pipe 263 is branched at a branching portion 264. One is an outlet pipe 265 branched so as to emit air to the side of the head body 1, and the other is an intake pipe 266 provided with a flexible hose 267. The tip of the flexible hose 267 can be directed to the vicinity of the grindstone 201. In the branch portion 264, the suction pipe 266 is obliquely joined to the outlet pipe 265. The other structure is the same as the air tool 250 of FIG.

  When the air passes through the outlet pipe 265 at a high speed, the abrasive powder at the tip of the flexible hose 267 is sucked by the negative pressure and discharged from the outlet pipe 265. The outlet pipe 265 is provided with a cloth dust bag 268, and the dust is captured by the dust bag 268.

  As described above, in the air tools 200, 250, 260 of the present invention, the tool can be moved back and forth by air, and in particular, a prism 201 (square prism, triangular prism, etc.) grindstone 201 or file is attached to the tip of the rod 8. With this, the corners of the workpiece can be machined. Further, the abrasive powder generated by the tool can be purged with air as the working fluid. Further, the abrasive powder can be sucked by the working fluid.

  Further, the present invention can be widely applied to machines other than the shower head and the air tool described in the first and second embodiments as a machine that performs a withdrawal operation with a fluid.

DESCRIPTION OF SYMBOLS 100 Shower head 1 Head main body 2 Grip 3 Ejection hole 4 Water discharge cover 5 Rotor 6 Blade 7 Hollow shaft 8 Rod body 9 Protrusion 10 Cam groove 15 Head 19 Waterway port 50 First bearing 60 Second bearing 61 Slide groove 62 Slide key 70 bearing

Claims (10)

A hollow body having an outlet for the fluid together with a water channel opening for ejecting the fluid into the interior;
A rotor disposed within the main body and having a plurality of blades and having a cam projection on the hollow inside of the hollow shaft;
A rod body in which one end of the rotor is pivotally supported in the main body and the other end protrudes from the main body and is pivotally supported, and a cam groove into which the cam protrusion is inserted is formed in the circumferential direction;
A fluid working machine comprising: 2. The slide projection according to claim 1, further comprising a slide projection formed between the main body and the rod, and a slide groove or a slide hole that is long in an axial direction in which the slide projection enters. Fluid working machine. Further, the bearing provided on the main body has one end of the rod slidably inserted inside a cylindrical projection protruding from the inside of the main body, and the end of the hollow shaft of the rotor and the end of the cylindrical projection The fluid working machine according to claim 1, wherein a bearing is disposed between the two. The fluid working machine according to any one of claims 1 to 3, wherein an outlet of a fluid of the main body is directed to a protruding side of the rod body. The fluid working machine according to any one of claims 1 to 4, wherein an attachment attaching / detaching portion is provided at an end portion protruding from the main body of the rod body. The fluid working machine according to any one of claims 1 to 5, wherein the main body is provided with a grip that also serves as a fluid introduction pipe. A shower head, wherein the fluid working machine according to claim 1 is provided on a head, and water is supplied to the rotor through a grip provided on a main body. The fluid working machine according to any one of claims 1 to 6 is provided in a head, and water is supplied to the rotor through a grip provided in a main body, and the outlet is an ejection hole for ejecting water. Shower head characterized by. A pneumatic tool characterized in that a tool is provided on the rod body of the fluid working machine according to any one of claims 1 to 6, and an outlet of the fluid can be directed to the tool. An air tool, wherein a tool is provided on the rod body of the fluid working machine according to any one of claims 1 to 6, and a suction pipe connected in the middle of a fluid outlet pipe can be directed toward the tool.