JP2006141641A - Wooden bathtub - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To solve the problems that conventionally a gap by distortion is generated at the intermediate part of a constituting plate such as a side wall or a bottom wall constituting a bathtub by the repetition of hot water supply and water discharge, water leaks, costs are high due to the use of a plate as wide and thick as possible in order to reduce the deformation parts of a joined part, and cleaning is not easy since there are right-angled crossing corner parts at respective corners inside the bathtub. <P>SOLUTION: A tightening metal fitting 80 is passed through a through-hole provided at a prescribed interval at the center of the plate constituting the side wall 10a or the bottom wall 15 and is passed through the plates 20, 21 and 22 constituting the side wall or the bottom wall, the plates are bonded with each other, and the gap between the plates is prevented. Also, a corner material 50 having a trapezoidal cross section is used at a perpendicular joined part on the inner side of the bathtub such as a bathtub inner side joined part to eliminate the bathtub inner side right-angled joined part, and an easy-to-clean wooden bathtub is provided. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a wooden bathtub formed by assembling structural members such as wooden side walls and bottom walls.

Conventionally, various materials such as tiled, wooden, resin such as FRP, metal such as hollow, stainless steel, and the like are used for the bathtub. Among these, wooden bathtubs have been widely used since ancient times because of their excellent properties such as wood aroma, elasticity, texture, and heat retention.
By the way, as shown in FIG. 15, the conventional rectangular wooden bathtub 1 has side walls and a bottom wall made up of flat plates 3, and the side walls and the side walls, and the side walls and the bottom wall are joined at the end of each flat plate 3. Joining and assembling is carried out using rust-free nails such as brass or stainless steel, wood screws or adhesives.

In conventional square wooden bathtubs, the side walls or bottom walls of the bathtub are repeatedly wetted and dried due to repeated water supply or hot water supply and drainage, and in particular, the middle part of each wall is distorted. As a result, there is a problem that a gap is generated in the joining portion of the flat plates formed thereby to cause water leakage. Therefore, in order to reduce the distortion of the joining portion, a flat plate having a width as wide as possible is used, which increases the cost.
Further, each corner in the bathtub has a corner that intersects at right angles, and thus has a drawback that it is difficult to clean.

  The wooden tub of the present invention is a wooden tub in which a plane having a narrow plate width in a flat plate section is used as a joint surface, and a plurality of flat plates are stacked to form a side wall and a bottom wall, and the flat plate is the joint surface. A through hole is formed at the center of the narrow surface of the plate, and a plurality of through holes are arranged at predetermined intervals in the length direction of the flat plate, and tightened to the through holes continuous with the stacked flat plates. The first feature is that the side wall and the bottom wall are configured by tightening through a metal fitting.

In addition to the first feature described above, the wooden bathtub of the present invention has, in the joining surface of the stacked flat plates, a protruding protrusion on one joining surface and a recessed groove on the other joining surface. The second feature is that the protrusions and the grooves on the adjacent flat plates are fitted to each other when the flat plates are stacked in the length direction.
Accordingly, it is possible to eliminate the deviation between the stacked flat plates.

In addition to the second feature described above, the wooden bathtub of the present invention has a flat protrusion and a groove formed on a flat plate that are joined closer to the inner surface of the bathtub when they are fitted and tightened with a clamp. A third feature is that the uneven shape is formed so that the tightening pressure is concentrated on the surface.
By doing in this way, it can tighten firmly.

In addition to the first feature described above, the wooden bathtub of the present invention has a flat joint surface that is stacked, and one of the joint surfaces is perpendicular to the wide plate surface that forms the inner surface of the flat bathtub. For the other joint surface, the surface closer to the inner surface of the bathtub among all the joint surfaces is formed at right angles to the wide plate width surface constituting the inner surface of the bathtub, and The remaining surface except for the surface near the side surface was formed at an inclination angle slightly smaller than a right angle with respect to the wide surface of the plate constituting the inner surface of the bathtub, and the stacked plates were tightened with the clamps. The fourth feature is that the tightening pressure is concentrated on the joint surface near the inner surface of the bathtub.
As a result, it is possible to easily process the flat joint surface and to obtain a structure with high effect.

  In addition to the above first feature, the wooden bathtub of the present invention has a dovetail groove formed on a wide surface of the outer surface of the stacked flat bath tub and a plurality of dovetail grooves. A fifth feature is that the wall fixing frame is fitted to the dovetail grooves arranged at predetermined intervals in the length direction and continuing to the plurality of stacked flat plates.

  Moreover, in addition to any of the first to fifth features, the wooden bathtub of the present invention is formed by packing a corner material having a trapezoidal cross section and an angle between opposing slopes slightly larger than 90 degrees. At the right angle from the inside of the bathtub, it is attached to the junction right angle between the side wall and the side wall inside the bathtub, and the side wall and the bottom wall, and tightened from the outside of the bathtub with a tightening screw toward the center between the opposing slopes of the corner material. The sixth feature is that the corners are eliminated.

  Moreover, the wooden bathtub of this invention has an attachment part, such as a male screw for attaching tension | tensile_strength parts, such as a nut, in one end side in addition to any one of the said 1st-6th characteristics, and the other end side is U-shaped. And a groove for passing the fastening metal fitting on one side of the L-shaped bent piece and a groove for hooking the U-shaped part of the fastening metal on the other side. A seventh feature is that the flat plate that uses the hook metal fitting is subjected to a seating process in which the hook metal fitting is fitted into the flat plate using the hook metal fitting to prevent the tightening metal fitting from rotating. .

Since the plate | board | plate which comprises each wall can be clamp | tightened firmly, materials with narrow plate | board widths, such as a thinning material, can also be used for a flat plate, and cost can be reduced.
By adding a corner material in combination with packing to the corner portion where the side wall and the bottom wall are orthogonal to each other, perfect waterproofness of the corner portion and ease of cleaning can be obtained.

A first embodiment of the present invention will be described with reference to the following drawings.
1 to 8 show a first embodiment of the present invention.
FIG. 1 is a perspective view of a wooden bathtub showing a first embodiment of the present invention. 10a and 10b are side walls 10 (see FIG. 4), and 15 is a bottom wall. The side wall 10 and the bottom wall 15 have a basic structure shown in FIG. 4 to be described later, and are constructed by stacking flat plates. Both of them are made of a fastening member 80 (see FIG. 2) and a tension part 81 such as a nut (see FIG. 2). ) Is tightened more strongly. Reference numerals 50 and 51 denote corner materials and packings applied to the wall-to-wall joints, 60 an umbrella tree, and 65 an apron.

  2 is a cross-sectional view taken along the line AA in FIG. A countersink 21d for inserting a tightening tool for a tension component 81 such as a nut is processed on the flat plate 21, and a countersink 22d for fixing a rotation-preventing flange 80c of the clamp 80 is processed on the flat plate 22. It is. The bottom wall 15 is fastened together with left and right side walls 10a and tension parts 81 such as a fastening fitting 80 and a nut. 70 is a bottom wall reinforcing material.

FIG. 3 is an enlarged view of a portion B in FIG. The corner member 50 and the packing 51 will be described. The corner member 50 has a trapezoidal cross section, and the angle between the opposing inclined surfaces 50c is slightly larger than 90 degrees. When it is tightened from the outside of the bathtub with a tightening screw such as a wood screw 8 made of stainless steel or the like at an angle of 45 degrees with respect to the corner member 50, the tip portions 50a and 50b of the trapezoidal slope are strongly and equally strong with the same tightening pressure. Press the packing 51 down. As a result, the watertight effect can be enhanced, and the inclined surface 50c can be formed at the corner in the bathtub to eliminate the right-angled corner.
The inclined surface 50c of the corner member 50 may be a concave surface 50d having a round shape as indicated by a two-point diagonal line.

  FIG. 4 is a perspective view seen from the inner side of the bathtub, and the side walls 10 are configured using flat plates 20, 21, and 22. The upper flat plate 21 has a recess 21a as the cross-sectional shape required for the combination with the umbrella 60 at the top. The lower end flat plate 22 has a groove 22a that fits into the bottom wall 15 and a hole 22c through which the fastening fitting 80 passes. The flat plates 20 to 22 have a strong wall formed by passing the fastening bracket 80 through each through-hole 20c and tightening with a tension component 81 such as a nut, and even if wet and dry due to water wetting are repeated A gap can be prevented from being generated.

  FIG. 5 is a perspective view of the basic flat plate 20. On one side of the narrow surface of the flat plate section is a convex protrusion 20a, and on the opposite side, a concave groove 20b is cut in the length direction of the plate, and a through hole 20c through which the fastening fitting 80 is passed is formed. Necessary numbers are penetrated through the center of the narrow surface of the plate at intervals according to the length in the length direction.

FIG. 6 is an enlarged view of the end face of the flat plate 20 as seen from the direction C of FIG. Tub inner shoulder dimension l ₁ ridge protrusion 20a is smaller than the tub outer shoulder dimension l _2, further constitutes a concave portion dimension l ₃ of concave groove 20b in larger shape than the dimension l ₁ ridge projections 20a ing. The stack of the flat plates 20 is tightened when the protruding projections 20a and the concave grooves 20b of the adjacent flat plates 20 are arranged so as to be fitted to each other and tightened with a tension component 81 such as a nut through the tightening fitting 80. The applied pressure is concentrated on the contact portion between the surface 20d of the bathtub inner convex portion and the surface 20e of the concave portion, so that the watertight effect is further enhanced.

  FIG. 7 is a view showing the structure of the fastening metal fitting 80. The elongated metal round bar 80a has a mounting portion such as a male screw 80b at the tip, and a flange 80c at the other end.

  FIG. 8 is a plan view of the flange 80c constituting the fastening bracket 80. In order to serve as both a fastener and a detent, the length of each side is configured as a rectangle with c> b, and a metal round bar 80a is inserted and welded. A round hole 80d is formed.

Next, a method of assembling as a bathtub will be described.
As shown in FIG. 4, the side wall 10a and the side wall 10b in FIG. 1 are alternately shifted in the horizontal direction by the thickness of the flat plate 20, the flat plate 21, and the flat plate 22 when the flat plates are stacked up and down. And are assembled by tightening with a tightening fitting 80 and a tension component 81 such as a nut.
The side wall 10a and the side wall 10b assembled in the same manner as above are formed so that the corner of the side wall 10a and the corner of the side wall 10b are inserted into each other when assembled as a bathtub, and the connecting portion is made of wood screws 90 such as stainless steel. From the side wall 10a side, next, the side wall 10b side is fixed to each other to increase the connection strength.

Referring to FIG. 2, the bottom wall 15 is assembled in the same manner as the side wall 10 using the flat plate 20 and the flat plate 21, and is used together with the side wall 10a on both the left and right side surfaces using a fastening member 80 and a tension part 81 such as a nut. Tighten and tighten.
The side wall 10b and the bottom wall 15 are fixed to each other with a wood screw 90 made of stainless steel or the like from the outside of the side wall 10b.
Below the bottom wall 15, a necessary number of bottom wall reinforcing members 70 having a square cross-sectional shape are inserted at intervals corresponding to the length of the bottom wall 15 in the length direction.

In the wooden bathtub of the present invention, the corner material 50 and the packing 51 are placed in the joint corner perpendicular portion of the side wall 10a and the side wall 10b in FIG. 1 and directed from the outside toward the center between the inclined surfaces 50c of the corner material 50. The corner member 50 is tightened and fixed at a 45 degree angle with a wood screw 8 made of stainless steel or the like, so that the corner portion is waterproof and the corner portion is easy to clean. Form.
Further, a corner member 50 and a packing 51 are placed at the right-angle portions of the side wall 10a and the bottom wall 15 and between the side wall 10b and the bottom wall 15 in the joint corner in the bathtub, and made of stainless steel or the like at an angle of 45 degrees from the outside. The corner member 50 is fastened and fixed by the wood screw 8 to form a corner portion which is perfect for waterproofing at the corner portion and can be easily cleaned.
In particular, the umbrella 60 prevents the side wall 10 from being deformed, and the surface portion is rounded so that the safety of the access to the bathtub, the touch, and the overall design can be changed. Can do. The apron 65 is attached only to the front surface.

Next, a second embodiment of the present invention will be described. FIGS. 9 to 14 show a second embodiment of the present invention.
FIG. 9 is a cross-sectional view of the bathtub showing the second embodiment (corresponding to the A-A cross section of FIG. 1). The side wall 30a, the bottom wall 35, the wall fixing frame 75, the fastening metal fitting 85, and the hook metal fitting 86 are different from those in the first embodiment described above, but the other parts are the same as those in the first embodiment. .
A counterbore 41e for inserting a tightening tool for a tension component 81 such as a nut is processed on the flat plate 41, and a counterbore 42e for inserting a hook metal fitting 86 and preventing rotation is processed on the flat plate 42.
The hooking metal fitting 86 is shown in FIG. 14, and after the U-shaped portion 85b of the fastening metal fitting 85 is hooked on the notch 86a of the hooking metal fitting 86, the fastening metal fitting 85 is passed through the notch 86c, and the flat plates 42, 40 are used. , 41 is passed through the fastening bracket 85 and then tightened with a tension part 81 such as a nut.

FIG. 10 is a perspective view seen from the outer side of the bathtub, and the side walls 30 are configured using flat plates 40, 41 and 42. On the outer surface side of the flat plate, the wall fixing frame 75 is inserted and fitted into the dovetail grooves 41d, 40d, and 42d of the flat plate 41, the flat plate 40, and the flat plate 42 to prevent the respective flat plates from being displaced.
The upper flat plate 41 has a recess 41a processed as a cross-sectional shape necessary for the combination with the umbrella 60 at the upper end, and the lower flat plate 42 has a groove 42a in which the lower portion is fitted to the bottom wall 35 and a fastening bracket. Holes 42c through which the holes 85 pass are processed, and the flat plates 40 to 42 are strong when the fastening fittings 85 are passed through the respective through holes 40c, the lower portions are hung on the hanging fittings 86, and tightened with a tension part 81 such as a nut. Even if there is repeated wet and dry due to water wetting, it is easy to prevent gaps from forming.

  FIG. 11 is a perspective view of the flat plate 40, 40c is a through hole through which the fastening fitting 85 is passed, and 40d is a dovetail groove into which a wall fixing frame 75 is inserted to prevent the plate from shifting when the flat plate 40 is assembled side by side.

  FIG. 12 is an enlarged view of the end surface of the flat plate 40 as viewed from the direction of arrow D in FIG. Although the processing of the contact surfaces 40u, 40a, 40b between the flat plates is facilitated, the surface of the portion of the dimension a (surface closer to the inner surface of the bathtub) 40a among the lower surfaces constitutes the inner surface of the bathtub. The surface of the part of dimension b (the remaining surface excluding the surface 40a close to the inner surface of the bathtub) 40b has an angle smaller than 90 degrees with respect to the surface 40i. If the flat plate 40 is assembled side by side, the surface where the flat plate and the flat plate come into contact is only the surface 40a near the inner surface of the bathtub, and when tightened with a tension component 81 such as a nut through the tightening bracket 85, the tightening pressure is increased. The watertight effect is further enhanced by concentrating on the surface 40a closer to the inner surface of the bathtub.

  FIG. 13 is a diagram showing the structure of the fastening bracket 85, where one end has a mounting portion such as a male screw 85a and the other end is bent into a U shape to form a U-shaped portion 85b.

  FIG. 14 is a perspective view of the hook metal fitting 86. The hook metal fitting 86 is made of an L-shaped bent piece, the surface 86b is brought into contact with the position of the through hole 40c of the flat plate 42 constituting the wall, and the U of the fastening metal fitting 85 is inserted into the notch 86a on the other surface of the hook metal fitting 86. The character-shaped portion 85b is hooked, and the clamp 86 is used through the notch 86c of the surface 86b.

It is a perspective view of the wooden bathtub which shows 1st Embodiment of this invention. It is AA sectional drawing of FIG. It is an enlarged view of the B section of FIG. It is the perspective view which looked at the side wall which comprises a bathtub from the bathtub inner surface side. It is a perspective view of the flat plate which comprises a bathtub. It is an enlarged view of the end surface of a flat plate. It is a figure which shows the structure of a fastening metal fitting. It is a top view of the flange which comprises a fastening metal fitting. It is sectional drawing of the wooden bathtub which shows 2nd Embodiment of this invention. It is the perspective view which looked at the side wall which comprises a bathtub from the bathtub outer surface side. It is a perspective view of the flat plate which comprises a bathtub. It is an enlarged view of the end surface of a flat plate. It is a figure which shows the structure of a fastening metal fitting. It is a perspective view of the hook metal fitting which fixes a fastening metal fitting. It is a perspective view of the conventional wooden bathtub.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Bathtub 3 Flat plate 8 Wood screw 10, 10a, 10b Side wall 15 Bottom wall 20, 21, 22 Flat plate 20a Convex protrusion 20b Concave groove 20c Through hole 30, 30a Side wall 35 Bottom wall 40, 41, 42 Flat plate 40c Through hole 40d , 41d, 42d Dovetail 50 Corner material 51 Packing 60 Umbrella 65 Apron 70 Bottom reinforcement 75 Wall fixing frame 80 Tightening fitting 81 Tightening fitting such as nut 85 Tightening fitting 85a Male thread 85b U-shaped part 86 Hook fitting 90 Wood screw

Claims (7)

  A wooden bathtub in which a narrow surface of a flat plate cross section is used as a joint surface, and a plurality of flat plates are stacked to form a side wall and a bottom wall, and penetrates through the center of the narrow surface of the flat plate as the joint surface A plurality of through holes are formed at predetermined intervals in the length direction of the flat plate, and the side walls are tightened through the fastening holes in the through holes continuing to the stacked flat plates. And the wooden bathtub characterized by comprising a bottom wall.   In the joining surfaces of flat plates to be stacked, convex protrusions are formed in one joining surface in the length direction, and concave grooves are formed in the other joining surface in the length direction, and adjacent flat plates are stacked when the flat plates are stacked. 2. The wooden bathtub according to claim 1, wherein the protruding protrusions and the recessed grooves are fitted into each other.   The convex and concave protrusions and concave grooves on the flat plate are formed to have a concave and convex shape so that the tightening pressure is concentrated on the joint surface near the inner surface of the bathtub when they are fitted and tightened with a tightening bracket. The wooden bathtub of Claim 2 characterized by the above-mentioned.   In the joint surfaces of the flat plates to be stacked, one of the joint surfaces is configured so that the entire surface is perpendicular to the wide surface of the flat plate bathtub, and the other joint surface is the entire joint surface. The surface close to the inner surface of the bathtub is formed at right angles to the wide plate width surface constituting the inner surface of the bathtub, and the remaining surface excluding the surface closer to the inner surface of the bathtub constitutes the inner surface of the bathtub The angle of inclination is slightly smaller than the right angle with respect to the wide plate surface, so that when the stacked flat plates are tightened with the clamps, the tightening pressure is concentrated on the joint surface near the inner surface of the bathtub. The wooden bathtub according to claim 1, wherein the wooden bathtub is provided.   A plurality of dovetail grooves and a plurality of dovetail grooves arranged at predetermined intervals in the length direction of the flat plate are formed on a wide surface of the flat plate bathtub outer surface to be stacked. The wooden bathtub according to claim 1, wherein a wall fixing frame is fitted into the dovetail continuous with the flat plate.   Corner material with a trapezoidal cross section and an angle between opposing slopes slightly larger than 90 degrees is attached to the joint right angle between the side wall and side wall of the bathtub, and between the side wall and bottom wall via packing. The right-angled corner is eliminated from the inside of the bathtub by tightening with a tightening screw from the outside of the bathtub toward the center between the inclined surfaces facing each other of the corner material. Crab wooden tub.   On one side of an L-shaped bent piece, there is a fastening bracket made of an elongated metal round bar that has an attachment portion such as a male screw for attaching a tension component such as a nut on one end and the other end is bent in a U-shape. Is provided with a groove through which the fitting is passed, and on the other side, a hook fitting provided with a groove for hooking the U-shaped part of the fastening fitting is used. The wooden bathtub according to any one of claims 1 to 6, wherein the metal fitting is inserted into a countersink to prevent rotation of the fastening metal fitting.

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