JP2009078038A - Bathtub apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a bathtub apparatus capable of giving a massage to a bather by a pressing member and retaining the pressing member clean. <P>SOLUTION: This bathtub apparatus is provided with a pressing part 3 at the back side face 2a of a bathtub. The pressing part 3 has a case 5 communicated to the inside of the bathtub, the pressing member 6, and a drive means. The pressing member 6 is movable by the drive means between a storage position stored inside the case 5 and a projection position projecting from the case 5 to the inside of the bathtub. The case 5, in its inside, is provided with a guide 8 for retaining a distance between the outside face of the pressing member 6 and the inside face of the case 5 when the pressing member 6 executes an operation, and an adhesion prevention member 9 fixed to the case 5 and coming into contact with the side face of the pressing member 6. The adhesion prevention member 9 is further provided with a lip portion inclined toward the inside of the bathtub. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a bathtub apparatus, and more particularly to a bathtub apparatus that massages a bather.

  In recent years, health consciousness has increased, and there has been an increasing demand for easy massage during bathing. For this reason, massage devices that massage the bather in the bathtub have been developed. For example, Patent Literature 1 discloses a bath massage apparatus installed in a bathtub, and a surface that contacts a bather's back is a convex round surface, and a device that protrudes a push ball from the convex round surface by an air pump. It is disclosed. In Patent Document 1, when a bather sits in a bathtub and the back is in contact with the convex rounded surface, the air pump is operated to project the push ball, so that the bather can be massaged. Are listed. Further, Patent Document 2 discloses a bath foot massage apparatus that projects acupressure members with water pressure.

  However, the techniques described in Patent Documents 1 and 2 have the following problems. That is, since these massage devices are used in the bathtub, dirt such as sebum and slime tends to adhere. So, when cleaning the bathtub, the massage device will also be cleaned, but when the massage device is stopped, the pressing members such as the push ball and the shiatsu member are in a state of being housed in the device, Cleaning is difficult. In particular, the side surface of the pressing member does not come into contact with the bather, so dirt easily adheres to it, and it is difficult to rub with a cleaning tool such as a sponge because it is not exposed when the massage device is stopped. Even if a cleaning agent or the like is used in a state where water is stored in the inside, since a strong water flow does not reach the side surface of the pressing member, the cleaning effect is small. For this reason, when such a massage apparatus is actually used, the cleanability of the pressing member becomes a problem.

JP 2000-2333013 A JP 2003-275277 A

  The objective of this invention is providing the bathtub apparatus which can massage a bather with a press member and can keep a press member clean.

  According to one aspect of the present invention, a bathtub, a case attached to the wall surface of the bathtub and communicating with the bathtub, a storage position stored in the case, and a protruding position protruding from the case into the bathtub A pressing member movably provided between the driving member, a driving means for moving the pressing member between the storage position and the protruding position, and when the pressing member moves, A bathtub comprising: a guide that maintains a constant distance between an outer side surface and the inner side surface of the case; and an adhesion preventing member that is fixed to the case and contacts the side surface of the pressing member. An apparatus is provided.

  ADVANTAGE OF THE INVENTION According to this invention, a bather can be massaged with a press member and a bathtub apparatus which can keep a press member clean can be implement | achieved.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a schematic cross-sectional view illustrating a bathtub device according to this embodiment.
FIG. 2 is a schematic cross-sectional view illustrating a pressing portion of the bathtub device shown in FIG.
FIG. 3 is a schematic cross-sectional view illustrating the adhesion preventing member of the pressing portion shown in FIG.

  As shown in FIG. 1, in the bathtub apparatus 1 which concerns on this embodiment, the bathtub 2 is provided. Further, the inner wall surface of the bathtub 2, for example, the inner wall surface (hereinafter referred to as “back side surface”) 2 a with which the back comes into contact when the bather M bathes in a normal posture, presses in a plurality of steps along the vertical direction Part 3 is provided. For example, the pressing portions 3 are arranged in two rows on both sides of a center line extending in the vertical direction of the back side surface 2a. Moreover, in the bathtub apparatus 1, the drive means 4 which drives the press part 3 is provided in the exterior of the bathtub 2. As shown in FIG. The driving means 4 is provided with a pump, for example, and supplies air to the pressing portion 3. In addition, the drive means 4 may supply water with respect to the press part 3, and may supply mechanical power with a motor etc.

  As shown in FIG. 2, each pressing portion 3 is provided with a hollow case 5. The case 5 is attached to the back side surface 2a of the bathtub, and the shape thereof is, for example, a substantially cylindrical shape, and the axial direction thereof is, for example, substantially perpendicular to the region of the back side surface 2a where the case 5 is attached. Hereinafter, the direction toward the bathtub 2 in the pressing portion 3 is referred to as “front”, the direction away from the bathtub 2 is referred to as “rear”, the front end of each member is referred to as “front end”, and the rear side The end is called “rear end”.

  An end (front end) 5a on the bathtub 2 side in the case 5 is opened. Moreover, the area | region where case 5 is attached in the back side surface 2a of the bathtub is also opened. Thereby, the case 5 communicates with the inside of the bathtub 2. Further, a pipe 4a of the driving means 4 (see FIG. 1) is connected to the rear end portion 5b of the case 5, and for example, air is supplied into the case 5 by a pump of the driving means 4.

  A pressing member 6 is provided in the case 5. The shape of the pressing member 6 is a substantially cylindrical shape, the axial direction of which coincides with the axial direction of the case 5, its axial length is shorter than the axial length of the case 5, and its diameter is the case 5. Slightly smaller than the inner diameter. Further, the front end portion 6a of the pressing member 6, that is, the shape of the front end portion forms, for example, a part of a sphere, and the stopper 7 is connected to the rear end portion 6b. The shape of the stopper 7 is a disk shape, the axis of which coincides with the axis of the pressing member 6, and the diameter thereof is substantially equal to the inner diameter of the case 5.

  The pressing member 6 and the stopper 7 are not fixed with respect to the case 5 and can move along their axial directions. That is, the pressing member 6 can move linearly in the front-rear direction, and at the rear end position of the movement range, the whole or most of the pressing member 6 is accommodated in the case 5 and at the front end position of the movement range. The front end 6 a of the pressing member 6 protrudes from the case 5 into the bathtub 2. Hereinafter, the rear end position described above is referred to as a “storage position”, and the front end position is referred to as a “projection position”. A guide 8 is attached to the case 5. When the pressing member 6 moves as described above, the guide 8 guides the pressing member 6 and regulates its track, thereby keeping the distance between the outer surface of the pressing member 6 and the inner surface of the case 5 constant. Keep on.

  An adhesion preventing member 9 is attached to the front end 5 a of the case 5. Thereby, the adhesion preventing member 9 is fixed to the case 5. The shape of the adhesion preventing member 9 is annular, and is disposed along the inner surface of the case 5. Further, the adhesion preventing member 9 is made of a soft elastic material, for example, rubber.

As shown in FIG. 3, a lip portion 9 a is formed on the adhesion preventing member 9. The shape of the lip portion 9a is an annular fin shape, and becomes thinner as it approaches the tip. Therefore, as shown in FIG. 3, the cross-sectional shape of the lip portion 9a is a wedge shape. And the front-end | tip 9b of the lip | rip part 9a contacts the side surface of the press member 6. FIG. Moreover, the direction which goes to the front-end | tip from the base of the lip | rip part 9a inclines toward the inside of the bathtub 2 (refer FIG. 1). That is, the direction V ₁ toward the base 9c of lip portion 9a at the tip 9b, relative to the direction V ₂ toward the center axis C of the pressing member from the area where the tip 9b of the lip portion 9a of the side surface of the pressing member 6 is in contact, It inclines toward the inside of the bathtub 2, ie, the left side in FIG.

Next, operation | movement of the bathtub apparatus which concerns on this embodiment comprised as mentioned above is demonstrated.
First, as shown in FIG. 1, water (hot water) W is stored in the bathtub 2, the bather M enters the bathtub 2, and the bathing posture is taken with the back in contact with the back side surface 2a. Thereby, the press part 3 is arrange | positioned along the muscle (back muscles) R of the bather's M back and waist | hip | lumbar part. At this time, the pressing member 6 is in the storage position, and the front end 6a (see FIG. 2) is substantially flush with the back side surface 2a.

  In this state, the driving means 4 drives each pressing portion 3. For example, air is supplied to each pressing portion 3. As shown in FIG. 2, this air is introduced into the case 5 from the rear end portion 5 b side through the pipe 4 a and increases the pressure in the space behind the stopper 7 in the case 5. Thereby, the force toward the front acts on the stopper 7, and the stopper 7 and the pressing member 6 move forward. As a result, the front end portion 6a protrudes from the case 5 into the bathroom 2, presses the back muscle R of the bather M, and massages. Eventually, the pressing member 6 reaches the protruding position.

  Thereafter, when air is no longer supplied from the driving means 4 to the pressing portion 3, the pressing member 6 is pressed against the back of the bather M or moved backward by water pressure and returned to the storage position. A biasing means for biasing the pressing member 6 toward the rear may be provided in the case 5. In this way, when the driving means 4 intermittently supplies air to the pressing portion 3, the pressing member 6 reciprocates linearly between the storage position and the protruding position. At this time, since the pressing member 6 moves while being guided by the guide 8, the trajectory thereof is restricted, and the distance between the outer surface of the pressing member 6 and the inner surface of the case 5 is kept constant.

  When the pressing member 6 reciprocates linearly, its side surface slides with respect to the tip 9 b of the lip portion 9 a of the adhesion preventing member 9. That is, the side surface of the pressing member 6 is rubbed by the lip portion 9a. This makes it difficult for dirt such as sebum and slime to adhere to the side surface of the pressing member 6, and once adhered dirt is removed and discharged into the bathtub 2. At this time, since the shape of the adhesion preventing member 9 is annular, it contacts the entire circumference of the pressing member 6. Further, since the adhesion preventing member 9 is provided at the front end portion 5 a of the case 5, the adhesion preventing member 9 contacts over a long distance in the axial direction of the pressing member 6 as the pressing member 6 moves. As a result, a wide area on the side surface of the pressing member 6 can be cleaned.

  Further, the adhesion preventing member 9 is provided with a lip portion 9a, and this lip portion 9a is inclined toward the bathtub, so that the tip 9b of the lip portion 9a comes into contact with the pressing member 6 to remove dirt. As the effect increases, dirt is discharged into the bathtub 2 and does not stay inside the case 5. Hereinafter, this operation will be described in more detail.

When the pressing member 6 moves forward, the dirt adhering to the pressing member 6 collides with the tip 9b of the lip portion 9a from behind. However, this time, the direction V ₁ toward the root 9c in the lip portion 9a at the tip 9b, since the moving direction of the dirt is the forward, the lip portion 9a by the collision stains easily deformed. For this reason, the dirt passes under the lip portion 9a while passing through the lip portion 9a while adhering to the pressing member 6.
On the other hand, when the pressing member 6 moves rearward, the dirt adhering to the pressing member 6 collides with the front end 9b of the lip portion 9a from the front. At this time, the direction V ₁ toward the root 9c in the lip portion 9a at the tip 9b, since the moving direction of the dirt are opposite, dirt caught in the lip portion 9a, is peeled off from the side of the pressing member 6. Since the peeled dirt floats in front of the adhesion preventing member 9, it is eventually discharged into the bathtub 2 and does not enter the case 5.

  Furthermore, the adhesion preventing member 9 is fixed to the case 5, while the distance between the pressing member 6 and the case 5 is kept constant by the guide 8, so that the adhesion preventing member 9 is the pressing member 6. The force applied to the pressure member is uniform over the entire outer periphery of the pressing member 6 and does not vary depending on the position of the pressing member 6 in the front-rear direction. For this reason, a uniform cleaning effect can be obtained.

Next, the effect of this embodiment will be described.
As described above, in the bathtub apparatus 1, the driving member 4 can reciprocate the pressing member 6. Thereby, the front end part 6a of the pressing member 6 presses the bather M's back, and the bather M can be massaged.

Further, according to the present embodiment, when the pressing member 6 reciprocates, the adhesion preventing member 9 rubs the side surface of the pressing member 6, so that it is difficult for dirt to adhere to the side surface of the pressing member 6, and once adhered dirt is removed. The Further, since the adhesion preventing member 9 is formed with a lip portion 9a inclined toward the bathtub side, the dirt can be removed intensively when the pressing member moves backward, and the dirt is discharged into the bathtub 2. Thus, it does not stay in the case 5. Furthermore, by attaching the adhesion preventing member 9 to the front end portion 5 a of the case 5, most of the side surface of the pressing member 6 can be cleaned. Furthermore, by providing the guide 8, the force with which the adhesion preventing member 9 is pressed against the pressing member 6 can be made uniform, and a stable cleaning effect can be obtained.
Thus, according to this embodiment, the side surface of the pressing member that is difficult to clean can be kept clean. Thereby, the bather can always take a bath in a comfortable state and receive a massage.

Next, a specific example will be described in order to realize the present embodiment.
First, a first specific example will be described.
FIG. 4 is a cross-sectional view illustrating the pressing portion of the bathtub device according to this example, showing a state where the pressing member is in the storage position,
FIG. 5 is a cross-sectional view illustrating the pressing portion of the bathtub device according to this example, showing a state where the pressing member is in the protruding position,
FIG. 6 is a cross-sectional view illustrating an inner peripheral ring and an adhesion preventing member in this example.
FIG. 7 is a perspective sectional view illustrating a state in which the adhesion preventing member is removed from the case in the bathtub device according to this example.
FIG. 8 is a perspective view of the state shown in FIG. 7 as seen from inside the bathtub.
In FIG. 7, the spring is not shown for convenience.

  As shown in FIG.4 and FIG.5, the press part 11 of the bathtub apparatus which concerns on this example is attached to the back side surface 2a of the bathtub. A circular opening 2b is formed at a portion of the back side surface 2a where the pressing portion 11 is attached. A screw (not shown) is formed on the inner peripheral surface of the opening 2b.

  In the pressing part 11, a hollow case 12 is provided. The case 12 is comprised from the outer side member 13 attached to the bathtub from the outer side of the bathtub, and the inner side member 14 attached to the bathtub from the inner side of the bathtub. The outer member 13 is a cylindrical member, and the bathtub mounting jig 15, the intermediate member 16, and the stopper housing 17 are connected in a line in this order from the bathtub side along the axial direction.

  The bathtub attachment jig 15 is a short tubular member, and internal through-holes extending along the axis thereof are open at both ends of the bathtub attachment jig 15. An annular protrusion 15a is formed on the front end of the bathtub mounting jig 15, and a screw (not shown) is formed on the outer peripheral surface of the protrusion 15a. And the protrusion 15a is inserted in the opening part 2b of the back side surface 2a of a bathtub, and is screwed. Thereby, the outer side member 13 is being fixed with respect to the bathtub.

  The intermediate member 16 is a cylindrical cup-shaped member having an open front end and a closed rear end. A rear end surface of the intermediate member 16 serves as a guide 18. That is, a convex portion 18a is formed in the central portion of the rear end surface of the intermediate member 16 toward the rear, and a through hole 18b is formed along the central axis of the intermediate member 16, that is, the central axis of the convex portion 18a. ing.

  A diaphragm 19 is sandwiched between the bathtub mounting jig 15 and the intermediate member 16. The diaphragm 19 is made of a soft elastic material and is a circular film having concentric concavities and convexities. The center portion can be displaced to the front side and the back side with respect to the peripheral portion. A circular hole is formed in the center of the diaphragm 19.

  The stopper housing 17 is also a cylindrical cup-shaped member having an open front end and a closed rear end. One through hole 17 a is formed in the side surface of the rear end portion of the stopper housing 17 and communicates with the outside of the stopper housing 17. The through hole 17a is connected to a pump (not shown) provided in the driving means of the bathtub device, and air is supplied from the pump into the stopper housing 17 through the through hole 17a. The front end portion of the stopper housing 17 is in contact with the rear end portion of the intermediate member 16, and the convex portion 18 a of the guide 18 is housed inside the stopper housing 17.

  On the other hand, the inner member 14 is an annular member, and the outer ring 21 and the inner ring 22 are combined concentrically. In the outer periphery ring 21, the collar 21a is provided in the outer peripheral surface of the edge part (front-end part) by the side of a bathtub. Therefore, the shape of the cross section orthogonal to the circumferential direction in the outer peripheral ring 21 is L-shaped. The outer peripheral ring 21 is fitted into the annular protrusion 15a of the bathtub mounting jig 15 from the inside of the bathtub and is locked by the flange 21a. Thereby, the outer periphery ring 21 is connected to the bathtub attachment jig 15 and is fixed to the bathtub via the bathtub attachment jig 15.

  The inner ring 22 is detachably attached to the outer ring 21. The shape of the cross section orthogonal to the circumferential direction in the inner circumferential ring 22 is a J-shape, and the groove 22 a that is open to the inside and opened only to the inner portion toward the front is the entire circumference of the inner circumferential ring 22. Is formed over. An annular adhesion preventing member 23 is fitted in the groove 22 a of the inner peripheral ring 22. The adhesion preventing member 23 is made of a soft elastic material such as rubber.

  As shown in FIG. 6, the adhesion preventing member 23 has a dust seal shape, and includes a main body portion 23 a and a single lip portion 23 b extending from the main body portion 23 a. The main body portion 23a is accommodated in the groove 22a of the inner peripheral ring 22, and the lip portion 23b protrudes from the opening of the groove 22a. The direction in which the lip portion 23b protrudes is a direction between a direction toward the central axis of the inner peripheral ring 22 and a direction toward the inside of the bathtub (front). The adhesion preventing member 23 can be attached to and detached from the inner peripheral ring 22.

  And the internal diameter of the bathtub attachment jig 15 of the outer side member 13 and the internal diameter of the intermediate member 16 are mutually equal. Hereinafter, this inner diameter is referred to as “inner diameter of the case”. On the other hand, the inner diameter of the inner peripheral ring 22 of the inner member 14 is slightly smaller than the inner diameter of the case. Further, the inner diameter of the stopper housing 17 is smaller than that.

  Further, a pressing member 26 is provided in the pressing portion 11. The shape of the pressing member 26 is a substantially cylindrical shape, and the front end portion 26a is hemispherical. The outer diameter of the pressing member 26 is smaller than the inner diameter of the case, and slightly larger than the inner diameter of the tip of the lip portion 23b of the adhesion preventing member 23. As a result, the tip of the lip portion 23 b of the adhesion preventing member 23 contacts the side surface of the pressing member 26 with a constant pressing force. At this time, the direction from the base of the lip portion 23b toward the tip is inclined forward with respect to the direction from the region where the tip of the lip portion 23b contacts the side surface of the pressing member 26 toward the central axis of the pressing member. The axial length of the pressing member 26 is slightly longer than the total length of the inner peripheral member 14, the bathtub mounting jig 15 and the intermediate member 16.

  Further, a shallow cup-shaped retainer 27 is provided at the rear end portion 26b of the pressing member 26 so as to wrap the rear end portion 26b. A stopper 28 is also attached to the rear end portion 26 b of the pressing member 26. The stopper 28 includes a cylindrical shaft 28a and a disk-shaped flange 28b. The front end portion of the shaft 28a passes through the retainer 27 and is embedded in the rear end portion of the pressing member 26, and a collar 28b is attached to the rear end portion. Furthermore, a spring 29 is provided between the guide 18 and the flange 28b to urge the flange 28b rearward. The spring 29 is wound around the shaft 28a.

  The central portion of the diaphragm 19 is sandwiched between the pressing member 26 and the retainer 27. The shaft 28a is inserted through the hole of the diaphragm 19. Thus, the pressing member 26 is disposed in front of the diaphragm 19, that is, in the bathtub side, and the retainer 27 is disposed in the rear of the diaphragm 19. On the other hand, as described above, the peripheral portion of the diaphragm 19 is sandwiched between the bathtub mounting jig 15 and the intermediate member 16 and is fixed to the case 12. Thereby, the space in the case 12 is partitioned into two spaces by the diaphragm 19 in a watertight manner. The space in front of the diaphragm 19 is filled with water because it communicates in the bathtub, and the space behind the diaphragm 19 is filled with air because it communicates with the driving means.

  The shaft 28a is slidably inserted through the through hole 18a of the guide 18. Accordingly, the pressing member 26 and the retainer 27 are movable in the front-rear direction in a space in front of the guide 18 in the case 12. On the other hand, the collar 28b is movable in the front-rear direction in the space behind the guide 18 in the case 12, that is, in the stopper housing 17.

Next, the operation and effect of this example will be described.
As described above, the shaft 28a of the stopper 28 is slidably inserted in the through hole 18a of the guide 18 in the front-rear direction. For this reason, as shown in FIG. 4, when air is not supplied from the driving means to the pressing portion 11, the flange 28b is urged rearward by the spring 29, whereby the shaft 28a and the pressing member 26 are also moved rearward. It is energized towards. The central portion of the diaphragm 19 is positioned behind the peripheral portion, and the pressing member 26 stops at a position where the biasing force of the spring 29 and the tension of the diaphragm 19 are balanced. At this time, the pressing member 26 is at the rear end position of the moving range, that is, the storage position, and most of the pressing member 26 is stored inside the case 12.

  In this state, as shown in FIG. 5, when air is supplied from the driving means into the stopper housing 17 through the through hole 17a, the air is filled, that is, from the diaphragm 19 in the case 12. In addition, the pressure in the rear space becomes higher than the pressure in the space filled with water, that is, the space in front of the diaphragm 19 in the case 12, and a force directed forward acts on the flange 28b. When this force exceeds the urging force of the spring 29, the shaft 28a is guided by the guide 18 and the pressing member 26 moves forward. Thereby, the pressing member 26 protrudes from the case 12 into the bathtub, and the front end portion 26a presses the back of the bather (not shown). Then, it stops when the spring 29 is fully contracted. The position of the pressing member 26 at this time is the front end position of the moving area, that is, the protruding position.

  At this time, the side surface of the pressing member 26 slides with respect to the lip portion 23b of the adhesion preventing member 23, but the direction from the root to the tip of the lip portion 23b is forward with respect to the traveling direction (forward) of the pressing member 26. Since it is a direction, the force which rubs the side surface of the press member 26 is weak. For this reason, even if dirt is attached to the side surface of the pressing member 26, the lip portion 23 b is deformed to pass through the contact portion with the lip portion 23 b, and the dirt is difficult to peel off from the pressing member 26.

  Thereafter, when the supply of air from the driving means is stopped, the pressure in the space behind the diaphragm 19 in the case 12 decreases, and the forward force acting on the flange 28b disappears. Accordingly, the stopper 28 and the pressing member 26 are moved backward by the biasing force of the spring 29. Then, as shown in FIG. 4, the pressing member 26 returns to the storage position.

  Also at this time, the side surface of the pressing member 26 slides relative to the lip portion 23b of the adhesion preventing member 23, but the direction from the root to the tip of the lip portion 23b is relative to the advancing direction (backward) of the pressing member 26. Since it is the reverse direction, the force which rubs the side surface of the press member 26 is strong. For this reason, the dirt adhering to the side surface of the pressing member 26 is scraped off by the lip portion 23b and discharged into the bathtub.

  If air is intermittently supplied from the driving means to the pressing portion 11, the pressing member 26 can be caused to reciprocate linearly within a predetermined movement range by the above-described operation. Thereby, a bather can be continuously massaged. At this time, the lip portion 23b of the adhesion preventing member 23 rubs against the side surface of the pressing member 26, so that the side surface of the pressing member 26 hardly adheres to the dirt, and the once adhered dirt is peeled off. Thereby, the side surface of the pressing member 26 can be kept clean. At this time, since the shape of the adhesion preventing member 23 is annular, it contacts the entire circumference of the substantially cylindrical pressing member 26.

  Further, since the adhesion preventing member 23 is attached to the inner member 14 of the case 12, the adhesion preventing member 23 moves a relatively long distance with respect to the pressing member 26 as the pressing member 26 moves. As a result, the adhesion preventing member 23 can clean a wide area on the side surface of the pressing member 26. For this reason, the adhesion preventing member 23 can clean the entire portion of the cylindrical portion of the pressing member 26 that enters and exits the bathtub. That is, in the pressing portion 26, it is easy to get dirty because it goes in and out of the bathtub, and a conspicuous portion can be cleaned because it is visible when protruding. Since the spherical portion at the tip of the pressing member 26 hits the back every time a bather is massaged, it is difficult for dirt to adhere and it is not necessary to clean with the adhesion preventing member 23.

  Further, when the reciprocating motion described above, the shaft 28a of the stopper 28 is inserted through the through hole 18a of the guide 18, so that the track of the pressing member 26 is fixed linearly. Thereby, the distance between the outer surface of the pressing member 26 and the inner surface of the case 12 can be kept constant. On the other hand, the adhesion preventing member 23 is fixed to the case 12 because it is held in the groove 22 a of the inner circumferential ring 22. As a result, the stress acting between the adhesion preventing member 23 and the pressing member 26 is uniform over the entire outer periphery of the pressing member 26 and is uniform with respect to the position of the pressing member 26 in the front-rear direction. For this reason, the side surface of the pressing member 26 can be rubbed with a uniform force, and a uniform cleaning effect can be obtained. Further, the reciprocating motion of the pressing member 26 can be smoothed and stabilized.

  Furthermore, since the outer ring 21 of the inner member 14 of the case 12 is fitted to the protrusion 15a of the bathtub mounting jig 15, it is fixed to the bathtub via the bathtub mounting jig 15, but the inner ring 22 Is detachable from the outer ring 21. For this reason, as shown in FIG.7 and FIG.8, the inner peripheral ring 22 is detachable with respect to a bathtub. An adhesion preventing member 23 is attached to the inner circumferential ring 22, but the adhesion preventing member 23 can be attached to and detached from the inner circumferential ring 22. Therefore, when the adhesion preventing member 23 deteriorates, the adhesion preventing member 23 can be replaced by removing the inner circumferential ring 22 from the bathtub and removing the adhesion preventing member 23 from the inner circumferential ring 22. As a result, a stable cleaning effect can always be obtained even when the bathtub device is used for a long period of time.

  Furthermore, since the inner peripheral ring 22 is detachable with respect to other parts of the pressing portion 11, when the dirt inside the case 12 is concerned, the inner peripheral ring 22 is removed together with the adhesion preventing member 23, The inside of the case 12 can be cleaned with a shower or the like. Thereby, it is possible to meet the user's request to clean the inside of the pressing portion 11.

  In addition, since the adhesion preventing member 23 does not have a complete water-stopping property, the hot water in the bathtub enters the inside of the case 12. However, since the entry of dirt is hindered by the adhesion preventing member 23, the hot water entering the case 12 has little dirt. For this reason, breeding such as slime can be effectively suppressed inside the case 12. In addition, you may give a perfect water stop to an adhesion prevention member.

  Furthermore, the pressing part 11 is inserted with the protrusion 15a of the bathtub mounting jig 15 into the opening 2b from the outside of the bathtub and screwed with the pressing member 26 and the like housed in the outer member 13 of the case 12. Then, the inner member 14 can be easily attached to the bathtub by fitting from the inside of the bathtub. Therefore, it is easy to attach the pressing part 11 to the bathtub.

  Furthermore, in the pressing part 11, since the pressing member 26 is reciprocated by the pressure of air and the biasing force of the spring 29, it is not necessary to arrange electric parts in and around the bathtub, and the structure is simple. A pressing part can be constituted. This eliminates the need for measures against electric leakage and electric shock, and measures against corrosion of electrical components caused by water, thereby realizing a low-cost and highly reliable bathtub apparatus.

First, a second specific example will be described.
FIG. 9 is a cross-sectional view illustrating the pressing portion of the bathtub device according to this example, showing a state where the pressing member is in the storage position,
FIG. 10 is a cross-sectional view illustrating the pressing portion of the bathtub device according to this example, showing a state where the pressing member is in the protruding position,
FIG. 11 is a cross-sectional view illustrating the adhesion preventing member in this example.
Of the components shown in FIGS. 9 and 10, the same reference numerals are given to the components that perform the same functions as the components shown in FIGS. 4 and 5, and detailed descriptions thereof are omitted.

  As shown in FIG.9 and FIG.10, the bathtub apparatus which concerns on this example is compared with the bathtub apparatus (refer FIG. 4) which concerns on the above-mentioned 1st example. The configuration is different. That is, in the press part 31 of the bathtub apparatus which concerns on this example, the bathtub attachment jig 32 has not penetrated the opening part 2b formed in the back side surface 2a of the bathtub. On the other hand, the length of the inner member 33 is longer than the inner member 14 (see FIG. 4) of the first specific example described above, and passes through the opening 2b. In addition, the rear end portion of the inner member 33 is fitted inside the bathtub attachment jig 32 outside the bathtub.

  The inner member 33 includes an outer ring 34 and an inner ring 35. The inner ring 35 has an L-shaped cross section, and the inner ring 35 is the entire front surface of the outer ring 34. And the front side part of the inner peripheral surface is covered. And the groove | channel 35a with which the inner peripheral side and the back side were opened is formed in the rear-end part of the inner peripheral ring 35, and the annular | circular shaped adhesion prevention member 36 is accommodated in this groove | channel 35a. The rear side of the groove 35a is covered with an outer peripheral ring 34. As a result, the adhesion preventing member 36 is covered with the inner ring 35 on the front side and the outer ring side, and covered with the outer ring 34 on the rear side, and the inner ring side is exposed on the inner circumferential surface of the inner member 33 and contacts the pressing member 26. To do. As a result, in the state where the inner peripheral ring 35 is attached to the outer peripheral ring 34, the adhesion preventing member 36 is firmly held and surrounded by the three sides of the front side, the outer peripheral side and the rear side, and the inner peripheral ring 35 is In the state where it is removed from 34, the adhesion preventing member 36 is easily exchanged because the two surfaces of the inner peripheral surface and the rear end surface are exposed.

  As shown in FIG. 11, the cross-sectional shape of the adhesion preventing member 36 is V-shaped with the front side bifurcated, and the branch portion branched from the main body portion 36a to the front inner peripheral side is a lip portion 36b. . Further, the inner member 33 is formed with a water passing portion 37 that communicates the space in front of the diaphragm 19 in the case with the interior of the bathtub. The configuration other than the above in this specific example is the same as that of the above-described first specific example.

  In this specific example, the inner member 33 is provided with a water passing portion 37 that communicates the inside of the bathtub and the inside of the case. Thereby, the pressure in a case can be kept constant and the reciprocating motion of a press member can be made smooth. That is, when the pressing member moves forward, the resistance of the adhesion preventing member 36 is small, so that the hot water in the case tends to go out. For this reason, even if the center part of the diaphragm 19 moves forward, the pressure in the space ahead of the diaphragm 19 in the case is less likely to increase, and the operation of the diaphragm is not hindered. On the other hand, when the pressing member moves backward, the resistance of the adhesion preventing member is large and it is difficult to draw hot water. For this reason, if the water flow part 37 is not formed, the pressure in the space in front of the diaphragm in the case decreases as the center part of the diaphragm moves rearward, and the operation of the diaphragm is hindered. There is. However, in this specific example, since hot water enters and exits the case through the water passing portion 37, there is little fluctuation in pressure in the case, and the operation of the diaphragm and the pressing member can be surely made smooth. In addition, since the internal diameter of the water flow part 37 is made comparatively small, it is difficult for dirt to enter the case through the water flow part 37. The operations and effects other than those described above in this specific example are the same as those in the first specific example described above.

  The features of the present invention have been described above with reference to the embodiments and specific examples of the present invention. However, the present invention is not limited to these embodiments and specific examples. That is, a person skilled in the art has added, omitted, or changed the design of components to the bathtub device according to any one of the embodiments and each specific example as well as the combination of the above-described embodiment and each specific example. As long as they have the gist of the present invention, they are also included in the scope of the present invention.

  For example, in the above-described embodiments and specific examples, the example in which the adhesion preventing member is provided with the lip portion is shown, but the present invention is not limited to this. In the above-described embodiments and specific examples, an example in which the driving member reciprocates the pressing member by intermittently supplying air is shown. However, the present invention is not limited to this, and the driving unit, for example, A water flow may be intermittently supplied to the pressing unit, or a mechanical motion may be supplied to the pressing unit by a motor or the like. Furthermore, in the above-described embodiment and specific example, the case has a cylindrical shape and the pressing portion performs a reciprocating linear motion. However, the present invention is not limited to this, and the outer surface of the pressing member is What is necessary is just to be able to exercise while maintaining a certain distance with respect to the inner surface of the case. For example, the shape of the case may be an arc shape, and the pressing member may perform a reciprocating arc motion. Furthermore, the shape of the pressing member is not limited to a cylindrical shape, and may be, for example, a prismatic shape. Furthermore, the position where the pressing portion on the inner wall surface of the bathtub is attached is not limited to the back side surface, and may be the foot side surface, for example.

It is typical sectional drawing which illustrates the bathtub apparatus which concerns on embodiment of this invention. It is typical sectional drawing which illustrates the press part of the bathtub apparatus shown in FIG. It is typical sectional drawing which illustrates the adhesion prevention member of the press part shown in FIG. It is sectional drawing which illustrates the press part of the bathtub apparatus which concerns on a 1st specific example, and shows the state which has a press member in a storage position. It is sectional drawing which illustrates the press part of the bathtub apparatus which concerns on a 1st specific example, and shows the state which has a press member in a protrusion position. It is sectional drawing which illustrates the inner periphery ring and adhesion prevention member in a 1st specific example. It is a perspective sectional view which illustrates the state where the adhesion prevention member was removed from the case in the bathtub device concerning the 1st example. It is the perspective view which looked at the state shown in FIG. 7 from the bathtub inside. It is sectional drawing which illustrates the press part of the bathtub apparatus which concerns on a 2nd specific example, and shows the state which has a press member in a storage position. It is sectional drawing which illustrates the press part of the bathtub apparatus which concerns on a 2nd specific example, and shows the state which has a press member in a protrusion position. It is sectional drawing which illustrates the adhesion prevention member in the 2nd example.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Bathtub apparatus, 2 Bathtub, 2a Back side surface, 2b Opening part, 3 Press part, 4 Driving means, 4a Piping, 5 Case, 5a Front end part, 5b Rear end part, 6 Press member, 6a Front end part, 6b Rear end part 7, stopper, 8 guide, 9 adhesion preventing member, 9a lip portion, 9b tip, 9c root, 11 pressing portion, 12 case, 13 outer member, 14 inner member, 15 bathtub mounting jig, 15a protrusion, 16 intermediate member, 17 Stopper housing, 17a through hole, 18 guide, 18a convex part, 18b through hole, 19 diaphragm, 21 outer ring, 21a collar, 22 inner ring, 22a groove, 23 adhesion preventing member, 23a body part, 23b lip part , 26 pressing member, 26a front end portion, 26b rear end portion, 27 retainer, 28 stopper, 28a shaft, 28b rod, 29 spring, 31 pressing portion, 32 bathtub mounting jig , 33 inner member, 34 outer ring, 35 inner ring, 35a groove, 36 adhesion preventing member, 36a body part, 36b lip part, 37 water passing part, C central axis, M bather, R back muscle, V ₁ , V ₂ directions, W water

Claims (5)

A bathtub,
A case attached to the wall surface of the bathtub and communicating with the bathtub;
A pressing member provided movably between a storage position stored in the case and a protruding position protruding from the case into the bathtub;
Driving means for moving the pressing member between the storage position and the protruding position;
A guide for keeping a constant distance between an outer surface of the pressing member and an inner surface of the case when the pressing member performs the movement;
An adhesion preventing member fixed to the case and contacting a side surface of the pressing member;
The bathtub apparatus characterized by comprising.   The bathtub apparatus according to claim 1, wherein the adhesion preventing member has an annular shape, and the adhesion preventing member contacts the entire circumference of the pressing member. The adhesion preventing member has a lip portion whose tip contacts the side surface of the pressing member,
The direction from the base of the lip portion toward the tip is inclined toward the inside of the bathtub with respect to the direction toward the central axis of the press member from a region where the tip contacts the side surface of the press member. The bathtub apparatus according to claim 1 or 2, wherein The case is
An inner member attached to the bathtub from the inside of the bathtub;
An outer member attached to the bathtub from the outside of the bathtub;
Have
The bathtub apparatus according to claim 1, wherein the adhesion preventing member is attached to the inner member.   The bathtub apparatus according to claim 1, wherein the adhesion preventing member is detachable from the case.

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