JP2018042808A - Top plate structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a top plate structure which can easily ensure water-return properties/water stop performance of a top plate end part side of a sink or the like and can easily improve design of the top plate end part side without large restrictions.SOLUTION: A top plate structure includes a top plate 3, a top plate side back surface reinforcing material 5 arranged to be overlapped with a back surface side of the top plate, and an end part guard member 7 integrally attached to an end part side of the top plate 3. The end part guard member 7 is formed of a wall part 7a arranged in a vertical direction T1 to cover an end surface of the top plate 3, a back board part 7b which is connected to an upper end of the wall part 7a and is arranged upward with respect to an upper surface of the top plate 3, and a fixed part 7d which is connected to a lower end of the wall part 7a and is firmly attached to the top plate side back surface reinforcing material 5.SELECTED DRAWING: Figure 2

Description

  The present invention relates to the structure of a top plate such as a sink.

  For example, in a sink, a vanity, a cooking work table, etc., a flat top plate, a flat top plate-side back reinforcing material disposed on the back surface of the top plate, and an end side of the top plate A back material such as a forehead that is vertically suspended with the upper end abutted against the back surface and extends along the end portion of the top plate, and a back surface on the end side of the top plate side back surface reinforcing material, and There is a structure that includes a rod-like back side reinforcing material that is disposed in contact with the back surface of the saddle and that extends along the saddle and that reinforces the saddle.

  In general, the top plate is made of artificial marble, stone, ceramic, or the like, and the top plate side back surface reinforcing material or the heel side back surface reinforcing material is made of wood or the like.

  On the other hand, a reinforcing plate (attachment plate) is attached to the rear end side of the top plate so as to protrude upward from the top plate, a back guard (end guard member) is attached to the front side of the reinforcing plate, and a top plate such as a sink Some are configured to ensure water repellent / water-stop properties on the rear end side (to prevent water from flowing down from the top plate) or to protect the rear side such as a sink (for example, see Patent Document 1). ).

JP, 2006-106672, A

  Here, the conventional back guard is formed of the same material as the top plate, for example, and is installed by attaching it to a reinforcing material such as an aluminum plate and the top plate with an adhesive or the like. At this time, it is necessary to ensure the water-stopping property of the portion by caulking the connecting portion between the back guard and the top plate. For this reason, in the said conventional back guard, the installation operation takes time and effort. Further, if the top plate or the back guard is formed of a brittle fracture member such as ceramic, stone, or glass (brittle fracture member), it takes much more labor and time for the mounting operation.

  Furthermore, especially when the top plate or the back guard is made of ceramic, stone, glass, etc., the surface properties of the back guard will depend on the surface properties of the original plate of the brittle fracture member, and the upper end of the back guard However, it depends on the technology and workability of the cutting process for brittle fracture members. Moreover, the connection part of the lower end part of a top plate and a back guard will depend on caulking. As described above, the design properties of the respective parts are individually determined by the properties of the original plate, the processing technique, and the caulking, so that the design characteristics of the entire part where the back guard is installed are extremely limited.

  In addition, since the plate members of the top plate and the back guard are connected to each other, it is particularly difficult to ensure the strength of the connection portion. For this reason, a reinforcing material made of aluminum or the like is required separately, and the number of members increases. Furthermore, even when a reinforcing material is used, the back guard easily moves in the front-rear direction because the top plate and the back guard are connected to each other, and the back guard breaks due to the movement in the front-rear direction. There is also a fear.

  In view of the above circumstances, the present invention can easily ensure the water-repellent property / water-stopping property on the side of the top plate, such as a sink, and can easily improve the design property on the side of the top plate without any significant limitation. An object of the present invention is to provide a top plate structure.

  In order to achieve the above object, the present invention provides the following means.

  The top plate structure of the present invention includes a top plate, a top plate-side back reinforcing material disposed so as to overlap the back side of the top plate, and an end guard member attached integrally to the end side of the top plate And the end guard member is arranged above the top surface of the top plate so as to be connected to the upper end of the wall portion and the wall portion disposed in the vertical direction so as to cover the end surface of the top plate. The water return portion is provided, and is provided with a fixing portion that is connected to the lower end of the wall portion and is fixed to the top plate side rear surface reinforcing material.

  The top plate structure of the present invention includes a top plate, a top plate-side back reinforcing material disposed so as to overlap the back side of the top plate, and an end guard member attached integrally to the end side of the top plate The end guard member is connected to the wall portion arranged in the vertical direction so as to cover the end surface of the top plate, and is connected to the upper end of the wall portion, and overlaps the upper surface of the top plate in the vertical direction. In this way, the upper protrusion is formed with an upper protrusion serving as a water return portion protruding in the horizontal direction and a lower protrusion connected to the lower end of the wall portion and protruding in the horizontal direction. And the end of the top plate by fitting the end of the top plate, or the top plate and the end of the top plate side rear surface reinforcing material, into the fitting groove formed between the lower projection and the lower projection It is characterized by being attached to the unit.

  In the top plate structure of the present invention, the water return portion of the end guard member may protrude in the lateral direction from the upper end of the wall portion so as to overlap the top surface of the top plate in the vertical direction. .

  Furthermore, in the top plate structure of this invention, it is desirable to provide the water stop material interposed between the said water return part of the said edge guard member, and the said top plate.

  Further, in the top plate structure of the present invention, the water stop material is disposed in the vertical direction so as to cover the end surface of the top plate in a state of being integrally attached to the end portion side of the top plate. A wall portion, an upper water stop portion protruding from an upper end of the water stop wall portion so as to overlap and adhere to an upper surface of the top plate, and a back surface of the top plate from a lower end of the water stop wall portion, or the A lower water stop portion projecting so as to overlap and adhere to the back surface of the top plate side rear surface reinforcing material, and formed into a substantially U-shaped cross section, the water stop material comprising the upper water stop portion and the The end of the top plate, or the top plate and the end of the top plate side rear surface reinforcing material are fitted into the water stop material fitting groove between the lower water stop portions, and the end of the top plate It may be attached integrally.

  In the top plate structure of the present invention, the end guard member can be easily attached to the end portion of the top plate, and the end guard member can ensure the water-repellent property (water-stopping property) of the top plate end portion. it can.

  Moreover, since the water return property can be ensured only by fitting and attaching the end guard member to the end of the top plate, the end guard member 7 made of a material different from that of the top plate 3 can be used. The appearance of the end of the top plate can be determined by the modeling and design of the guard member 7. That is, the design property on the top plate end side can be determined using the end guard member 7 having a high degree of design freedom, and the design flexibility on the top plate end side can be greatly increased.

  Therefore, according to the top plate structure of the present invention, it is possible to easily ensure the water-repellent property (water-stopping property) on the side of the top plate, such as a sink, and to easily improve the design on the side of the top plate without any major limitations. It becomes possible to make it.

It is a longitudinal section showing sinks, such as a system kitchen concerning a 1st embodiment of the present invention. It is sectional drawing which shows the top-plate structure and end part guard member which concern on 1st Embodiment of this invention. It is sectional drawing which shows the example of a change of the top-plate structure which concerns on 1st Embodiment of this invention, and an edge part guard member. It is sectional drawing which shows the example of a change of the top-plate structure which concerns on 1st Embodiment of this invention, and an edge part guard member. It is sectional drawing which shows the example of a change of the top-plate structure which concerns on 1st Embodiment of this invention, and an edge part guard member. It is sectional drawing which shows the example of a change of the top-plate structure which concerns on 1st Embodiment of this invention, and an edge part guard member. It is sectional drawing which shows the example of a change of the top-plate structure which concerns on 1st Embodiment of this invention, and an edge part guard member. It is sectional drawing which shows the example of a change of the top-plate structure which concerns on 1st Embodiment of this invention, and an edge part guard member. It is sectional drawing which shows the example of a change of the top-plate structure which concerns on 1st Embodiment of this invention, and an edge part guard member. It is sectional drawing which shows the top-plate structure and end part guard member which concern on 1st Embodiment of this invention.

  Hereinafter, a top plate structure according to an embodiment of the present invention will be described with reference to FIGS. Here, in this embodiment, description will be made assuming that the top plate structure according to the present invention is the structure of the top plate part of a sink such as a system kitchen. Note that the top plate structure according to the present invention can be applied to the structure of the top plate portion of any table other than the sink, such as a vanity table, a work table, and a desk.

  As shown in FIG. 1, a sink such as a system kitchen of the present embodiment includes a top plate portion 1 that forms a table surface, and a storage portion 2 such as a drawer or a dishwasher provided below the top plate portion 1. Configured.

  Further, the top plate structure (top plate portion structure) A of the present embodiment is arranged in the vertical direction T1 with the top end contacting the flat top plate 3 and the back surface of the top plate 3 on the front end side. At the same time, it is integrally attached to the flat strip-shaped front ridge (saddle material) 4 extending in the lateral width direction T2 along the front end portion of the top plate 3 and the back surface (lower surface) of the top plate 3. A flat plate-shaped top plate side rear surface reinforcing material 5 and a rectangular bar-shaped side surface rear surface reinforcing material 6 attached integrally to the rear surface of the front end side of the top plate side rear surface reinforcing material 5 and the rear surface (back surface) of the front collar 4 It is prepared for.

  In this embodiment, the top plate 3 is formed using a brittle fracture member such as ceramic or stone, and the top plate side back surface reinforcing material 5 and the heel side back surface reinforcing material 6 are formed of wood or the like.

  On the other hand, the top plate structure A of this embodiment is integrally attached to the rear end portion of the top plate 3 and is provided with an end cover member 7. In the top plate structure according to the present invention, the end cover member 7 is not the rear end portion of the top plate 3 or the rear end portion of the top plate 3 but also other end portions such as a side end portion and a front end portion. You may comprise by attaching to an edge part.

  The end cover member 7 of the present embodiment is a member made of metal such as aluminum and / or resin, for example, and covers the end surface of the top plate 3 in a sectional view as shown in FIG. And a water return portion (upper side) projecting in one direction of the horizontal direction (depth direction) T3 in which one surface of the wall portion 7a faces from the upper end of the wall portion 7a. (Fixed part) that protrudes in the one direction from the lower end side separated by a predetermined dimension from the upper end of the wall part 7a and forms a fitting groove part 7c between the water return part 7b. Part) 7d.

The end cover member 7 has a fixed portion 7d formed as a hollow structure having a substantially square cross section, and the thickness dimension (height dimension) in the vertical direction T1 is substantially equal to the thickness of the top plate side rear surface reinforcing material 5. It is formed in the same way.
The water return portion 7b protrudes in the one direction from the upper end of the wall portion 7a, and is formed so as to be gradually inclined downward as the front end side in the protruding direction is directed toward the front end. The distance in the vertical direction T1 between the tip of the water return part 7b and the upper end of the fixing part 7d, that is, the height dimension of the fitting groove part 7c is slightly larger than the thickness dimension of the top plate 3 / an equivalent dimension. Is formed.

  Further, in the top plate structure A of the present embodiment, the top plate 3 is arranged such that the rear end portion of the top plate side rear surface reinforcing member 5 is arranged with a predetermined dimension and the front end portion side than the rear end portion of the top plate 3. The top plate side back surface reinforcing material 5 is integrally attached to the back surface of the glass plate.

  Then, the end cover member 7 is fitted so that the rear end portion of the top plate 3 is inserted into the fitting groove portion 7c between the fixing portion 7d and the water return portion 7b, and is integrated with the rear end portion of the top plate 3. Is attached. At this time, the upper surface of the fixing portion 7d may be fixed to the rear surface on the rear end side of the top plate 3 with a double-sided tape or an adhesive.

  In this embodiment, when the fitting groove 7c is fitted to the rear end of the wall 7a so that the rear end of the top plate 3 abuts or approaches the inner surface of the wall 7a, The front surface is in contact with the rear end surface of the top plate side rear surface reinforcing member 5. Then, the fixing portion 7d (portion forming the front surface) is screwed through an insertion hole (not shown) penetratingly formed in the wall portion 7a, and the fixing portion of the end cover member 7 is fixed to the top plate side rear surface reinforcing member 5. 7d is fixed. The end cover only needs to be fitted to the fitting groove portion 7c on the end side of the top plate 3, or only fixed to the top plate 3 or the top plate side rear surface reinforcing material 5 with double-sided tape or adhesive. The member 7 may be attached.

  As a result, the end cover member 7 is fixedly attached to the rear end portion of the top plate 3 and attached thereto. When the end cover member 7 is attached, the tip of the water return portion 7b and the fixing portion 7d are disposed so as to sandwich the rear end of the top plate 3. For example, the tip of the water return portion 7b is It abuts on the upper surface.

  In this state, the end cover member 7 is attached to the rear end portion of the top plate 3 by being fitted in the fitting groove portion 7 c, and the tip of the water return portion 7 b is pressed against the upper surface of the top plate 3. In addition, since the tip end side of the water return portion 7b is formed to be inclined, when the water operation is performed on the upper surface of the top plate 3, the water return portion 7b of the end cover member 7 is used for the top plate 3. The upper water can be prevented from flowing out of the top board 3.

  Furthermore, in this embodiment, it arrange | positions so that the sealing material / packing material (water-proof material) 8, such as a resin material, may be filled in the space formed by the front surface of the wall part 7a, and the lower surface of the water return part 7b. Thereby, the water stoppage between the water return part 7b and the top plate 3 can be ensured more suitably.

  Therefore, in the top plate structure A of the present embodiment, the end guard member 7 can be easily attached to the end of the top plate 3, and the end guard member 7 allows the end of the top plate to be turned back (stopped). Water) can be secured.

  Moreover, since the water return property can be ensured only by attaching the end guard member 7 to the end of the top plate, the end guard member 7 made of a material different from that of the top plate 3 can be used. The appearance of the top end side can be determined by the modeling and design properties. That is, compared with the conventional case, the design of the top plate end can be determined using the end guard member 7 having a higher degree of design freedom, and the design flexibility of the top plate end can be greatly increased. Is possible.

  Therefore, according to the top plate structure A of the present embodiment, it is possible to easily ensure the water-repellent property (water-stopping property) on the side of the top plate end such as a sink, while reducing the number of members. It becomes possible to improve the designability easily without any major limitation.

  As mentioned above, although 1st Embodiment of the top-plate structure concerning this invention was described, this invention is not limited to said 1st Embodiment, In the range which does not deviate from the meaning, it can change suitably.

  For example, in the present embodiment, the rear end portion of the top plate side rear surface reinforcing member 5 is arranged on the front end portion side with a predetermined dimension from the rear end portion of the top plate 3, and the top plate 3 is placed in the fitting groove portion 7c. The fixed portion 7d is disposed with the front surface in contact with the rear end surface of the top plate side rear surface reinforcing member 5 in a state where the rear end portion side is fitted and the end cover member 7 is attached.

  On the other hand, as shown in FIGS. 3 and 4, for example, a water return portion 7b that protrudes in one direction T3 from the upper end of the wall portion 7a and a fixing that protrudes in one direction T3 from the lower end of the wall portion 7a. The end cover member 7 is formed in a substantially U-shaped cross section with a portion 7d, and the rear surface of the top plate 3 and the top plate side rear surface reinforcing member 5 is fitted in the fitting groove portion 7c between the water return portion 7b and the fixing portion 7d. The end cover member 7 may be attached to the top plate side rear surface reinforcing member 5 by fitting the end portion and screwing the fixing portion 7d.

  At this time, a wedge-shaped sealing material 8 or the like may be fitted between the water return portion 7b and the top plate 3 so that the water-stopping property of this portion is more suitably secured.

  Further, as shown in FIG. 5, the fixing portion 7d and / or the water return portion 7b are formed so as to be elastically deformable, and the top plate 3, or the top plate 3 and the back of the top plate side rear surface reinforcing material 5 are formed in the fitting groove portion 7c. The end cover member 7 is fitted so that the end portions are fitted, and the water return portion 7b and the fixing portion 7d press / clamp the upper surface side of the top plate 3 and the back surface side of the top plate side rear surface reinforcing material 5 in the vertical direction T1. May be configured.

  Further, as shown in FIG. 6, position adjusting means 7e such as an adjusting screw penetrating the fixing portion 7d from below is provided, and the position of the fixing portion 7d can be freely adjusted in the vertical direction T1 by operating the position adjusting means 7e. You may comprise so that it can adjust to. In this case, the pressing force with which the water return part 7b presses the upper surface side of the top plate 3 can be freely adjusted.

  Further, as shown in FIGS. 7, 8, and 9, a water stop material 8 such as packing is integrally provided on the inner surface side of the water return portion 7b and the wall portion 7a, and the end cover member 7 is attached and the water stop material. You may comprise so that 8 may contact | abut on the upper surface of the top plate 3 and the water stop of this part may be ensured. In addition, it is preferable that the water stop material 8 is formed so that elastic deformation is possible.

  Further, the water-stopping material 8 is formed with the end cover member 7 attached to the water return portion 7b and the wall portion 7a as a hard material (hard portion) and the contact side with the top plate 3 as a soft material (soft portion). You may make it do. If it does in this way, the water stop material 8 can be firmly attached to the edge part cover member 7 by a hard part, and even if position shift etc. arise by a soft part, the water stop material 8 is made to contact | abut to the top plate 3 suitably. It is possible to suitably maintain the water-stopping property of this part.

  Even in the case of the configuration as described above, it is possible to obtain the same operational effects as those of the present embodiment.

  Next, a top plate structure according to a second embodiment of the present invention will be described with reference to FIG. Here, the present embodiment relates to a top plate structure of a sink such as a system kitchen, as in the first embodiment. Therefore, in this embodiment, the same code | symbol is attached | subjected with respect to the structure similar to 1st Embodiment, and the detailed description is abbreviate | omitted.

  As shown in FIG. 10, the end cover member 7 of the top plate structure of the present embodiment includes a water stop member (water stop material) 9 and a cover member 10 that are individually formed.

 The water stop member 9 is formed using an elastic material such as resin (rubber or the like), and includes a wall portion 9a disposed in the vertical direction T1 along the rear end portion of the top plate 3, and a wall portion 9a. An upper protrusion 9b that extends in one direction from the upper end in the horizontal direction T3 and is in close contact with the upper surface of the top plate 3, and extends in one direction in the horizontal direction T3 from the lower end of the wall 9a. The lower projection 9c is disposed in close contact with the lower surface of the plate 3 and has a substantially U-shaped cross section. As for this water stop member 9, the space between the upper side protrusion 9b and the lower side protrusion 9c is made into the fitting groove part 9d.

  Further, uneven portions 9e are formed on the upper surface of the upper protrusion 9b and the lower surface of the lower protrusion 9c of the water stop member 9. Concave and convex portions 9e each have a concave portion and a convex portion extending in the width direction T2 along the rear end portion of the top plate 3, and the concave portion and the convex portion alternately in the horizontal depth direction T3 from the rear end toward the front end. It is arranged. Further, the concave and convex portions 9e of the upper protruding portion 9b and the lower protruding portion 9c are formed such that the concave portions and the convex portions overlap each other in the vertical direction.

  Further, the upper protrusion 9b is formed with a front end protrusion 9f provided with a draining surface that protrudes upward and gradually inclines downward from the rear end side toward the front end. Further, a cover member contact surface is formed on the rear end side of the tip protrusion 9f of the upper protrusion 9b so that the tip of the cover member 10 contacts and is positioned and held.

  In the present embodiment, the lower protrusion 9c is also provided with a front end protrusion 9f having an inclined surface that protrudes downward and gradually inclines upward from the rear end side toward the front end. . A cover member contact surface is also formed on the rear end side of the front end protrusion 9f of the lower protrusion 9c so that the front end of the cover member 10 contacts and is positioned and held.

  On the other hand, the cover member 10 is, for example, a member made of metal such as aluminum or resin, and is disposed in the vertical direction T1 in a cross-sectional view so as to cover the end surface of the top plate 3. A wall-shaped wall 10a, a water return portion (upper fixing portion) 10b projecting in one direction from the upper end of the wall portion 10a, and projecting in one direction in the lateral direction T3 from the lower end of the wall portion 10a And a lower fixing portion 10c that forms a fitting groove portion 10d with the water return portion 10b.

  Further, the water return portion 10b is formed with an upper engagement portion 10e that protrudes in one direction T3 from the rear end to the front end side and is inclined downward from the rear end side toward the front end. . The lower fixing portion 10c is formed with a lower engagement portion 10f that protrudes in one direction T3 from the rear end to the front end side and is inclined downward as it goes from the rear end side to the front end. .

  The cover member 10 is provided with a rib 10g that protrudes in one direction T3 from the inner surface of the wall portion 10a and extends in the width direction T2 at the approximate center between the upper end and the lower end of the wall portion 10a.

  In the top plate structure A and the end cover member 7 of the present embodiment configured as described above, the rear end portion of the top plate 3 (or the end portion of the top plate 3 and the top plate side rear surface reinforcing material 5) is inserted. In this way, the fitting groove 9d is fitted so that the water stop member 9 is integrally attached to the rear end portion of the top plate 3.

  And the cover member 10 is attached so that the water stop member 9 attached to the rear-end part of the top plate 3 may be inserted and fitted in the fitting groove part 10d. At this time, the upper engaging portion 10e and the lower engaging portion 10f of the cover member 10 are engaged with the concavo-convex portion 9e of the water stopping member 9 attached in advance, and further, the tip protrusion 9f of the water stopping member 9 is engaged. When the upper engaging portion 10e and the lower engaging portion 10f of the cover member 10 are in contact with the cover member contact surface, the cover member 10 is detachably positioned and fixed, and is integrally attached.

  When the water stop member 9 and the cover member 10 of the end cover member 7 are attached to the rear end portion of the top plate 3 in this way, the water work is performed on the top surface of the top plate 3 as in the first embodiment. The end cover member 7 can prevent water on the top plate 3 from flowing out of the top plate 3.

  Furthermore, in this embodiment, the upper projection 9b of the water stop member 9 is in close contact with the upper surface of the top plate 3, and the cover member 10 is attached and the top plate is attached to the water return portion (upper projection) 10b of the cover member 10. Since it is pressed by 3 and closely_contact | adheres, the water stop of this part can be ensured suitably.

  Therefore, also in the top plate structure A of the present embodiment, the end guard member 7 can be easily attached to the end portion of the top plate 3 as in the first embodiment. Water repellent property (water-stopping property) of the part can be ensured.

  Moreover, since the water return property can be ensured only by attaching the end guard member 7 to the end of the top plate, the end guard member 7 made of a material different from that of the top plate 3 can be used. The appearance of the top end side can be determined by the modeling and design properties. That is, compared with the conventional case, the design of the top plate end can be determined using the end guard member 7 having a higher degree of design freedom, and the design flexibility of the top plate end can be greatly increased. Is possible.

  Therefore, according to the top plate structure A of the present embodiment, it is possible to easily ensure the water-repellent property (water-stopping property) on the side of the top plate end such as a sink, while reducing the number of members. It becomes possible to improve the designability easily without any major limitation.

  As mentioned above, although 2nd Embodiment of the top-plate structure based on this invention was described, this invention is not limited to said 2nd Embodiment, It deviates from the meaning including the example of a change of 1st Embodiment. It is possible to change appropriately within the range not to be.

1 Top plate part 2 Storage part 3 Top plate 4 Front end
5 Top plate side back surface reinforcing material 6 Wing side back surface reinforcing material 7 End cover member 7a Wall portion 7b Water return portion (upper protrusion)
7c Fitting groove 7d Fixed part (lower protrusion)
7e Position adjusting means 8 Sealing material / water blocking material 9 Water blocking member 9a Wall portion 9b Upper protrusion 9c Lower protrusion 9d Fitting groove portion 9e Uneven portion 9f Tip protrusion 10 Cover member 10a Wall portion 10b Water return portion (upper side) Fixed part)
10c Lower fixing portion 10d Fitting groove portion 10e Upper engagement portion 10f Lower engagement portion 10g Rib A Top plate structure T1 Vertical direction T2 Width direction T3 Depth direction (lateral direction, one direction)

Claims (5)

A top plate, a top plate-side back reinforcing material disposed so as to overlap the back side of the top plate, and an end guard member attached integrally to the end side of the top plate,
The end guard member is disposed in a vertical direction so as to cover the end surface of the top plate, and water is disposed above the top surface of the top plate so as to be connected to the upper end of the wall portion. A top plate structure comprising: a return portion; and a fixing portion that is connected to the lower end of the wall portion and is fixed to the top plate-side back surface reinforcing material. A top plate, a top plate-side back reinforcing material disposed so as to overlap the back side of the top plate, and an end guard member attached integrally to the end side of the top plate,
The end guard member is connected in a vertical direction so as to cover the end surface of the top plate, and is connected to the upper end of the wall portion so as to overlap the top surface of the top plate in the vertical direction. An upper projection that is a water return portion projecting from the lower wall and a lower projection that is connected to the lower end of the wall and projecting in the lateral direction. The end of the top plate or the end of the top plate and the top plate side rear surface reinforcing material is fitted to the fitting groove formed between the protrusions, and attached to the end side of the top plate. A top plate structure characterized by being made. In the top plate structure according to claim 1,
A top plate structure in which the water return portion of the end guard member protrudes laterally from the upper end of the wall portion so as to overlap the top surface of the top plate in the vertical direction. In the top-plate structure as described in any one of Claims 1-3,
A top plate structure provided with a water stop material interposed between the water return portion of the end guard member and the top plate. In the top plate structure according to claim 4,
In the state where the water stop material is integrally attached to the end portion side of the top plate, a water stop wall portion disposed in the vertical direction so as to cover the end surface of the top plate, and an upper end of the water stop wall portion The upper water stop portion protruding so as to overlap and adhere to the top surface of the top plate, and the bottom surface of the water stop wall portion overlaps the back surface of the top plate or the back surface of the top plate side rear surface reinforcing material. It is formed with a substantially U-shaped cross section with a lower water stop portion protruding so as to be closely attached,
The water stop material is an end portion of the top plate in the water stop material fitting groove between the upper water stop portion and the lower water stop portion, or an end portion of the top plate and the top plate side rear surface reinforcing material. And a top plate structure that is integrally attached to the end portion side of the top plate.

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