JP2019195920A - Seam plate using solid material - Google Patents

Abstract

To provide a seam plate using solid material with a quality stable for a long period, holding a component which is a longitudinal plate material of a plurality of solid materials constituting the seam plate and a reinforcement material arranged so as to transverse the component without using a fixture having a directional property such as a screw or a nail.SOLUTION: A seam plate 1 using solid material formed in articulation of a plurality of longitudinal components 11, 11, ..arranged in line is provided, and at least on a rear surface of the seam plate 1 using the solid material a series of grooves 2 is formed across a longitudinal direction of the longitudinal component 11, 11, .. and a reinforcement material 3 can be inserted into the groove 2. The reinforcement material 3 is composed of bars having its cross section in a non-rectangular shape and the groove 2 has a series of inclined surface 23, 23 in the groove 2 and at least a part of the reinforcement material 3 is locked by the inclined surface 23, 23 and is prevented from a detachment from the groove 2.SELECTED DRAWING: Figure 5

Description

  The present invention relates to a rowing board using a solid material.

  In general, a board used for a table top, a table top, a rack shelf, etc. is subjected to the load of the object to be mounted, so that it has a certain strength (rigidity) due to bending deformation and deformation over time. Required.

  The board material used as the above-mentioned board is a laminated board processed using an adhesive, a single piece of solid wood, or a row board using solid wood, etc. It has an original texture of natural wood, such as a rowing board made of solid wood, and has a different appeal from laminated wood processed with an adhesive. In recent years, using a single piece of solid wood increases the cost of the product. Instead, rowing boards using solid wood have begun to be used extensively. Conifers will be used and will contribute to forest management in Japan.

  On the other hand, however, solid materials have the property that deformation is likely to occur due to factors such as humidity change, temperature change, or local load. Specifically, dry shrinkage is more pronounced in the case of the plate material than the wood material, the plate having a higher specific gravity than the plate having a low specific gravity, and the plate having a thicker than the thin plate, and the wood surface side is concave. I know that it warps.

  The rowing board using the above-mentioned solid wood is used to row the wood end face, which is the side of the construction material, which is a plurality of solid long board materials (unevenness is formed on the wood end face of the construction material and the components are joined together) Or bonded by an adhesive) to form a flat plate shape. For example, Patent Literature 1 discloses a technique that uses a row board using such a solid material as a floor.

JP 2007-32026 A (second page)

  In the floor shown in Patent Document 1, the rowing plate is fixed to the discarding material with a fixing tool such as a screw or a nail so that it is supported by the strength of the discarding material (reinforcing material). The structural strength of the floorboard made of wood is increased. These floors are made of solid wood that has excellent durability against long-term loads from above, but is prone to deformation due to factors such as humidity changes, temperature changes, or local loads. Thus, when warpage occurs in the long plate material that is each constituent material, movement occurs in the vertical direction at the location fixed by the fixture, and a force is locally applied. In such a technique of Patent Document 1, the scraping material and the rowing plate are fixed from above and below with fixing tools such as screws and nails, and the direction of the force applied locally is the same direction. For this reason, the above-described fixing tool is dropped or the fixed portion is broken. Further, in order to surely prevent the warpage, many fixing tools such as screws and nails are required, and there is a problem that the useful life of the rowing plate is shortened.

  The present invention relates to a fixing member having a directionality such as a screw or a nail, comprising a constituent material which is a plurality of solid long plates constituting the rowing board and a reinforcing material arranged so as to cross the constituent material. The purpose of the present invention is to provide a rowing board using a solid material, which is fixed without using, and has a stable quality for a long time.

In order to solve the above problems, the rowing board using the solid material of the present invention,
It is a rowing board using a solid material using a solid material formed by connecting a plurality of long components arranged side by side,
A series of grooves are formed across the longitudinal direction of the elongated constituent material on at least the back surface of the rowing board using the solid material, and a reinforcing material can be inserted into the grooves,
The reinforcing member is formed of a bar having a non-rectangular cross section, and the groove has a series of inclined surfaces formed in the groove, and at least a part of the reinforcing member is locked to the inclined surface to form the groove. It is characterized by being prevented from leaving.
According to this feature, the reinforcing material is locked to the inclined surfaces of the series of grooves and prevented from detaching from the grooves. Warpage is reliably prevented by the bar-shaped reinforcing material on the back surface.

The groove is characterized in that the opening width is narrower than the internal space width, and inclined surfaces extending in the back direction are formed on both side surfaces of the internal space of the groove.
According to this feature, the movement of the reinforcing material is surely prevented by the inclined surfaces on both sides of the groove.

The reinforcing member is a bar of a thin metal plate whose outer surface shape of the cross section substantially matches the inner cross sectional shape of the groove.
According to this feature, since the reinforcing material comes into contact with the inner surface (side surface and back surface) of the groove, the contact area between the reinforcing material and the groove is wide, and durability against bending force due to warping is achieved.

The reinforcing member has a flange portion that is bent so as to extend from the opening of the groove to the back surface of the constituent material, and the flange portion is screwed to the back surface of the constituent material.
According to this feature, the flange portion is screwed to the rear surface of the constituent material, so that the movement of the reinforcing material relative to the groove can be reliably prevented. Furthermore, since the flange portion extends so as to bend from a part of the reinforcing material fitted in the groove, not only the contact area between the reinforcing material and the component material is wide, but also the metal plate serving as the root of the flange portion has a corner. Since a part is formed, it has the outstanding durability with respect to the bending force by curvature.

The reinforcing material is formed of a thin steel plate.
According to this feature, since the reinforcing material has a strong elastic restoring force due to steel, it is possible not only to reliably prevent the warping of each component on the back side, but also to provide a strong elastic restoring force against the generated warping permanently. It is possible to give a warping restoration effect due to environmental changes such as humidity changes.

The reinforcing material is formed of a plurality of parts divided in the width direction of the groove.
According to this feature, since the reinforcing material can be mounted in the groove from the back side of the rowing board using a solid material, the assembly is easy.

It is a perspective view which shows the surface of the rowing board using the solid material in Example 1 of this invention. It is a perspective view which abbreviate | omits a part of one reinforcing material and shows the back surface of the rowing board using the solid material in Example 1. FIG. It is a figure which shows a mode that a reinforcing material is inserted in the groove | channel of the rowing board using the solid material in Example 1. FIG. (A), (b) is a figure for demonstrating the state which the structural material single-piece | unit warps before manufacturing the rowing board using the solid material in Example 1. FIG. It is sectional drawing of the front view which shows the rowing board using the solid material in Example 1. FIG. (A), (b) is sectional drawing of the front view for demonstrating the force added to the structural member and reinforcement member of a rowing board which used the solid material in Example 1. FIG. (A)-(c) is sectional drawing of the front view which shows the modification of Example 1. FIG. It is a perspective view which shows the back surface of the rowing board using the solid material in Example 2 of this invention. It is sectional drawing of the front view which shows the rowing board using the solid material in Example 2. FIG. (A), (b) is sectional drawing of the front view which shows a mode that a reinforcing material is installed in the groove | channel of the rowing board which uses the solid material in Example 2. FIG.

  EMBODIMENT OF THE INVENTION The form for implementing the rowing board using the solid material which concerns on this invention is demonstrated below based on an Example.

  A rowing board using a solid material according to the first embodiment will be described with reference to FIGS. Hereinafter, the front side of the paper surface of FIG. 5 will be referred to as the front side (front side) of the rowing board, and description will be made with reference to the vertical and horizontal directions when viewed from the front side.

  As shown in FIG. 1, a row board 1 using a solid material according to the present embodiment (hereinafter simply referred to as “row board”) is a component 11 that is a plurality of solid natural cedar long boards. , 11,... Are lined together (by forming irregularities on the end surfaces of the constituent materials 11, 11,..., And joining the constituent materials 11, 11,. It is comprised as a flat plate-shaped board | plate material, and the grain direction of the constituent materials 11, 11, ... which comprise the rowing board 1 is orthogonal to the connection direction of the rowing board 1. As shown in FIG.

  As shown in FIG. 2, the rowing plate 1 has a series of two grooves 2 on the back side thereof in a straight line shape across the substantially connecting direction of the rowing plate 1, that is, the longitudinal direction of the constituent members 11, 11. The reinforcing material 3 is inserted and fixed along the longitudinal direction of the groove 2 (hereinafter, for simplification, one side is formed). Only the groove 2 will be described).

  As shown in FIG. 5, the groove 2 includes a back surface 22 that is substantially parallel to the front and back surfaces of the rowing plate 1, and a pair in which the gap between the grooves 2 increases from the opening 21 toward the back surface 22 on both sides of the internal space. And an inner surface composed of the inclined surfaces 23 and 23 (side surfaces). The groove 2 is formed in a substantially isosceles trapezoidal shape in cross-sectional view, with the width L1 of the opening 21 being shorter than the width (internal space width) L2 of the back surface 22 (L1 <L2). Further, on the back surface of the rowing plate 1, the enlarged grooves 4 that are shallow grooves that are shallower than the grooves 2 and substantially parallel to the back surface of the rowing plate 1 are formed continuously on the left and right sides of the opening 21 of the groove 2. Has been.

As shown in FIG. 5, the reinforcing member 3 is a bar of a thin metal plate made of steel, in which the outer surface shape of the cross section is bent into a shape along the inner cross section of the groove 2 and formed into a hat shape. is there. Specifically, the reinforcing member 3 is in contact with the inner surface 31 of the groove 2 and the inclined surfaces 23, 23, and is fitted along the expanded groove 4 from the inner fitting portion 31 fitted into the groove 2 and the opening portion 21 of the groove 2. And flange portions 32, 32 bent from the inner fitting portion 31 so as to extend in the left-right direction in cross-section. The internal fitting portion 31 of the reinforcing member 3 is configured to have a substantially U-shape in a cross-sectional view downward by three plate portions, each having a back surface plate portion 31 </ b> A that contacts the back surface 22 of the groove 2, and an inclined surface of the groove 2. 23, 23, and a pair of inclined surface plate portions 31 </ b> B and 31 </ b> B whose width of mutual separation increases from the opening 21 toward the back surface 22.
A plurality of screw holes 34, 34,... Are formed in the flange portions 32, 32. The reinforcing member 3 is fixedly attached to the back surface of the rowing board 1 by the fitting of the inner fitting portion 31 to the groove 2 and is auxiliaryly fixed by fastening the screws 33 (see FIG. 2). . The reinforcing material 3 has substantially the same length as the length of the rowing plate 1 in the connecting direction. Furthermore, in the assembled state, it is preferable that the back surface plate portion 31A of the internal fitting portion 31 of the reinforcing member 3 is in contact with the back surface 22 of the groove 2, but it is not always necessary to touch.

  Here, how to attach the reinforcing material 3 will be described. As shown in FIGS. 2 and 3, the inner fitting portion 31 of the reinforcing member 3 is inserted from the opening of the groove 2 on one end side in the connecting direction of the rowing plate 1, and the reinforcing member 3 is all the constituent members 11, 11. ,... Are inserted through the screw holes 34, 34,... Formed in the flange portions 32, 32 of the reinforcing member 3, and the reinforcing member 3 is inserted into the back surface of the rowing plate 1. It adheres with. In the state where the reinforcing member 3 is inserted into the groove 2, the inclined surface plate portions 31 </ b> B and 31 </ b> B of the inner fitting portion 31 are respectively engaged with the inclined surfaces 23 and 23 of the groove 2, whereby the inner fitting portion 31 is It is held in the groove 2 and is prevented from detaching from the groove 2.

  As shown in FIGS. 2 and 3, the screw holes 34, 34,... Have an oval shape extending in the longitudinal direction of the reinforcing member 3, and can follow the expansion and contraction of the rowing plate 1. . In addition, after inserting the reinforcing material 3, both ends in the connecting direction of the rowing plate 1 may be covered with a cover member (not shown). In this way, the reinforcing material 3 is prevented from being pulled out, and the appearance is excellent.

  Here, the warp of the component 11 will be described. Usually, the solid plate material shown in FIG. 4 (a) warps as shown in FIG. 4 (b) due to expansion and contraction accompanying changes in age, temperature or humidity (hereinafter referred to as “external factors”). . In the case of the constituent material 11 having the wood surface as a surface, particularly in the case of drying shrinkage, both end sides of the surface of the constituent material 11 are warped up (direction intersecting the wood grain direction).

  As shown in FIG. 6A, in the state in which the reinforcing member 3 is inserted into the groove 2, the inclined surface plate portions 31B and 31B of the inner fitting portion 31 are respectively locked along the inclined surfaces 23 and 23 ( Further, the back plate portion 31 </ b> A is in contact with the back surface 22. Accordingly, when an upward warping force F1 is generated in the component 11, a downward force F2 acts on the reinforcing material 3 as a reaction force against the warping force F1. Since the inclined plate portions 31B and 31B and the inclined surfaces 23 and 23 are engaged in a wide range over the longitudinal direction, the force applied locally can be dispersed, so that the warpage of the component 11 due to external factors is suppressed. (For simplicity, the forces F1, F2 are shown only on the left side of the drawing).

  Further, as shown in FIG. 6B, since the flange portion 32 of the reinforcing member 3 is fixed to the rowing plate 1 with screws 33, the component member 11 has a horizontal rightward (inward) warping force F3. When this occurs, a horizontal leftward (outward) force F4 acts on the body of the screw 33 as a reaction force against the warp force F3. For this reason, the force which deform | transforms the reinforcement material 3 inward can be suppressed, and an original shape can be maintained (For simplicity, force F3, F4 was illustrated only about the left side of drawing).

  As described above, the rowing plate 1 of the present invention has the inclined surface plate portion 31B of the inner fitting portion 31 of the bar-shaped reinforcing member 3 along the inclined surfaces 23, 23 of the series of grooves 2 formed on the back surface. Since the detachment from the groove 2 is prevented by locking 31B, the reinforcing material 3 ensures the warping of each constituent material 11 even if individual warping forces are generated in the constituent materials 11, 11,. In order to prevent this, a plurality of solid long plate members 11, 11,... And a reinforcing member 3 arranged so as to cross the members 11, 11,. It is possible to obtain a row board 1 having a stable quality over a long period of time by fixing without using a fixing tool having a directionality (particularly in the vertical direction) such as a nail.

  Further, on the back surface of the rowing plate 1, the reinforcing material 3 is inserted along the longitudinal direction of the groove 2 with respect to the groove 2 formed so as to penetrate both ends in the substantially connecting direction of the rowing plate 1. Therefore, the reinforcing material 3 can be fitted in all the constituent materials 11, 11,..., And the vertical movement due to individual warpage of the constituent materials 11, 11,.

  Further, since the groove 2 has a width of the opening 21 shorter than the width of the back surface 22 and has a substantially isosceles trapezoidal shape in cross section, the shape of the groove 2 is simple and the manufacturing cost can be reduced, and the reinforcing material 3 is locked to the inclined surfaces 23 and 23 of the series of grooves 2, so that separation can be prevented.

  Further, since the reinforcing material 3 is a bar of a thin metal plate whose outer surface shape of the cross section substantially matches the internal cross sectional shape of the groove 2, the reinforcing material 3 includes the back surface 22 and the inclined surfaces 23, 23 of the groove 2. Because of the contact, not only the contact area between the reinforcing member 3 and the groove 2 is wide, but both corners of the internal fitting portion 31 have acute angles and have durability against bending force due to warping. And since the reinforcing material 3 is a bar | burr of a thin metal plate, temporary deformation | transformation can be accept | permitted.

  Further, since the reinforcing material 3 is formed of a thin steel plate, the reinforcing material 3 has a strong elastic restoring force due to the steel, so that the warping of each of the constituent materials 11, 11,. In addition, it can permanently give a strong elastic restoring force to the generated warp, and can provide a warp restoration effect due to environmental changes such as humidity changes.

  Further, the flange portions 32, 32 of the reinforcing member 3 are inserted and screwed by a plurality of screws 33, 33,... To the screw holes 34, 34,. It is possible to reliably prevent the row reinforcing material 3 from coming off in the longitudinal direction of the groove 2. And since the flange parts 32 and 32 are extended so that it may be bent from a part of reinforcement material 3 fitted in the groove | channel 2, the contact area of the reinforcement material 3 and the component materials 11, 11, ... is not only large. Or since a corner | angular part is formed in the metal plate used as the root of the flange parts 32 and 32, it has the durability outstanding with respect to the bending force by curvature.

  Further, since the enlarged grooves 4 are shallowly formed on the left and right of the sectional view of the groove 2, the flange portions 32, 32 of the reinforcing member 3 and the screw heads of the plurality of screws 33, 33,. Since it protrudes downward from the back surface and is not conspicuous, it has excellent aesthetics.

  In addition, since the rowing board 1 is composed of the coniferous material of cedar, it can be finished into a rowing board with a soft touch and a refreshing fragrance unique to the cedar, and manufactured at a lower cost. Can do.

  A modification of the first embodiment will be described. Note that the same components as those shown in the above embodiment are given the same reference numerals and redundant description is omitted. As shown in FIGS. 7A and 7B, the cross-sectional shape of the groove 2 of the rowing plate 1 is not limited to a substantially isosceles trapezoid, and the opening width is smaller than the inner space width, and the groove 2a Inclined surfaces 23a, 23a may be partially formed inside, for example, a predetermined length is extended upward from the opening 21a in the thickness direction of the rowing plate 1, and the width increases toward the back surface 22a. The shape which spreads and the substantially circular internal surface of the groove | channel 2b may be sufficient. Needless to say, the reinforcing members 3a and 3b are in contact with the inner surfaces of the grooves 2a and 2b having the above shapes.

  Further, as shown in FIG. 7 (c), two grooves 2c, 2c are formed in a C-shape, and 2 are erected in a C-shape with respect to the two grooves 2c, 2c. A reinforcing material 3c having two plate-like inner fitting portions 31c, 31c may be inserted.

  The rowing board according to the second embodiment will be described with reference to FIGS. Note that the same components as those shown in the above embodiment are given the same reference numerals and redundant description is omitted.

  As shown in FIG. 8, the rowing plate 100 is formed such that, on the rear surface, a groove 200 having an isosceles trapezoidal shape in a cross-sectional view extends linearly in a substantially connecting direction of the rowing plate 100 and both ends thereof are closed. The reinforcing member 300 is inserted along the longitudinal direction of the groove 200.

  As shown in FIG. 9, the reinforcing member 300 includes a pair of thin metal plate L-shaped angles 301 and 301 having an L-shaped cross section, and a solid spacer 302 disposed therebetween. These are constituted by bolts 303 and nuts 304 for crimping them in the left-right direction, and form a substantially T-shaped bar shape.

  A method of attaching the reinforcing material 300 will be described. As shown in FIG. 10A, first, the extending pieces 301a and 301a extending in the left-right direction of the two L-shaped angles 301 and 301 are brought into contact with the inner surface 202 and the inclined surfaces 203 and 203 of the groove 200, respectively. After the spacer 302 is inserted between the L-shaped angles 301, 301, the body portion of the bolt 303 is moved to the left and right after the state (the inclined surfaces 203, 203 are in contact with the corners of the end portions of the extended pieces 301 a, 301 a). The L-shaped angles 301 and 301 and the spacer 302 are inserted between the through holes 301 b and 301 b of the L-shaped angles 301 and 301 penetrating in the direction and the through-hole 302 a of the spacer 302 and between the back surface of the head of the bolt 303 and the nut 304. Is bolted so as to clamp the pressure (see FIG. 10B). As described above, the attaching operation of the reinforcing member 300 does not require the reinforcing member 300 to be inserted from one end side in the connecting direction of the grooves 200, and can be detached by assembling the parts constituting the reinforcing member 300. Therefore, the groove 200 is not formed on the side end surface of the rowing plate 100, and the appearance is excellent.

  Further, since the mounting operation of the reinforcing member 300 does not use screwing to the component member 11 itself, a rowing plate that reliably prevents the warping force generated in each component member 11, 11,... Without relying on screwing. 100 can be realized.

  Note that the left and right widths of the extended pieces 301 a and 301 a of the L-shaped angles 301 and 301 or the spacer 302 are increased, and the total width of the extended pieces 301 a and 301 a and the spacer 302 is made equal to the width of the back surface 202. Thus, when the spacer 302 is inserted between the L-shaped angles 301 and 301 when the reinforcing member 300 is attached, the corners of the extended pieces 301 a and 301 a of the L-shaped angles 301 and 301 are caused to bite into the inclined surfaces 203 and 203. May be attached.

  Although the embodiments of the present invention have been described with reference to the drawings, the specific configuration is not limited to these embodiments, and modifications and additions within the scope of the present invention are included in the present invention. It is.

  For example, in the above-described embodiment, it has been described that the constituent material 11 is a long plate material and the grain direction coincides with the longitudinal direction. However, it is preferable that the constituent material 11 is aligned or along, but the dimensions of the constituent material are arbitrary. The grain direction may be an arbitrary direction.

  Further, the rowing board 1100 using cedar has been described. However, the present invention is not limited to this, and conifers or hardwoods other than cedar may be used according to the application, and timbers other than solid wood such as plywood may be used.

  Moreover, although it demonstrated that a groove | channel was formed in the back surface of the rowing board 1,100, you may form a groove | channel in the surface of not only this but a rowing board.

  Moreover, although it demonstrated that the groove | channel was formed in two strips in the back surface of the rowing board 1,100, it is not restricted to this, The number of a groove | channel is made into 1 or 3 or more according to the use of a rowing board, and it inserts. The number of reinforcing materials to be used may be adjusted accordingly.

  Moreover, although it demonstrated that the groove | channel was extended linearly in the connection direction, it is not restricted to this, For example, you may extend in the shape of a curve.

  Further, it has been described that the grooves 2, 2a to c are formed so that both ends thereof are opened at the side ends of the rowing plate 1, but not limited to this, the grooves 2 and 2a to c are formed so as to open only one of the side ends. It may be.

  Further, the groove is not limited to forming the back surface of the rowing plate 1,100, but is not limited to this, by providing a pair of convex portions provided at predetermined intervals on the left and right sides of the rowing plate, A groove may be formed.

  Further, the grooves 2 and 2a to c may be covered with a cover member (not shown) so that the internally fitted reinforcing members 3 and 3a to c are inconspicuous so as to be excellent in aesthetic appearance.

  Further, the enlarged groove 4 is excellent in aesthetics because the flanges 32, 32 of the reinforcing member 3 and the screw heads of the plurality of screws 33, 33,... Although demonstrated, it is not restricted to this, You may omit formation of the expansion groove | channel 4 when unnecessary.

  Moreover, although it demonstrated that it was the length substantially the same as the length of the connection direction of a reinforcing material and the rowing board 1,100, the direction of a reinforcing material may be shorter than a rowing board, for example, You may insert two reinforcements of the length below the half of the length of the rowing board in the connection direction.

  In addition, the reinforcing members 3 and 3a to c are described as being bars of a thin metal plate made of steel that is bent so that the outer surface shape of the cross section thereof substantially matches the inner cross sectional shape of the groove 2. However, the present invention is not limited to this, and the thickness of the bar may be increased to increase the strength of the reinforcing material, or the reinforcing material may have a non-hollow structure.

  Further, the reinforcing members 3, 3 a, 3 b have been described in which the flange portions 32, 32 are screwed to the back surfaces of the constituent members 11, 11,... Screws may be fixed to the back surfaces of the materials 11, 11,. Furthermore, you may fix with a nail instead of a screw.

  Further, as shown in FIG. 2, the reinforcing members 3 and 3 a to c are screwed to the three reinforcing members 3 in pairs, but the present invention is not limited to this, and any other portion may be used. There is no need to screw it at all.

  Further, as shown in FIG. 8, the reinforcing material 300 is bolted to the single reinforcing material 300 at three locations, but is not limited thereto, and may be any location other than 3.

  The reinforcing member 300 is a substantially T-shaped member in which a pair of thin metal plate L-shaped angles 301 and 301 made of steel and a solid spacer 302 inserted between them are bolted. Although described as an example, the material of the L-shaped angles 301 and 301 and the spacer 302 is not limited to this, and the means for fixing the reinforcing member 300 together may be other than bolting. May be omitted.

  In addition, in FIG. 7C, the modification in which the two grooves 2 are formed in a C shape has been described. However, the present invention is not limited to this, and the groove has an inverted C shape or a curved shape. There may be.

  Moreover, in Example 2, the shape of a groove | channel or a reinforcing material as shown to Fig.7 (a)-(c) may be sufficient.

DESCRIPTION OF SYMBOLS 1 Rowing board 2 Groove 3 Reinforcement material 11 Constituent material 21 Opening part 22 Back surface 23 Inclined surface 31 Internal fitting part 31A Back surface plate part 31B Inclined surface board part 32 Flange part 33 Screw 34 Screw hole 100 Rowing board 200 Groove 202 Back face 203 Inclined surface 300 Reinforcement material 301 L-shaped angle (Reinforcement material)
302 Spacer (Reinforcing material)
L1 Width of opening 21 L2 Width of back surface 22

Claims (6)

It is a rowing board using a solid material formed by connecting a plurality of long components arranged side by side,
A series of grooves are formed across the longitudinal direction of the elongated constituent material on at least the back surface of the rowing board using the solid material, and a reinforcing material can be inserted into the grooves.
The reinforcing member is formed of a bar having a non-rectangular cross section, and the groove has a series of inclined surfaces formed in the groove, and at least a part of the reinforcing member is locked to the inclined surface to form the groove. A rowing board made of solid wood, which is characterized by being prevented from being detached.   2. The groove according to claim 1, wherein an opening width of the groove is narrower than an inner space width, and inclined surfaces that extend in a depth direction are formed on both side surfaces of the inner space of the groove. Rowing board using the stated solid wood.   The row board using the solid material according to claim 1 or 2, wherein the reinforcing member is a bar of a thin metal plate whose outer surface shape of the cross section substantially matches the inner cross sectional shape of the groove. .   The reinforcing member has a flange portion bent so as to extend from the opening of the groove to the back surface of the component material, and the flange portion is screwed to the back surface of the component material. A rowing board using the solid material according to any one of 3 to 3.   The said reinforcement material is formed with the thin plate of steel, The rowing board using the solid material in any one of Claim 1 thru | or 4 characterized by the above-mentioned.   The said reinforcing material is formed from the several part divided | segmented in the width direction of the said groove | channel, The rowing board using the solid material of Claim 1 or 2 characterized by the above-mentioned.

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