JPH09111981A - Capping for roof parapet - Google Patents

Abstract

PROBLEM TO BE SOLVED: To facilitate spot welding for temporarily fixing a top plate to an internal vertical member when a capping arranged at the corner section of a roof parapet and constituted of the three members of an internal vertical member, an external vertical member and the top plate is assembled. SOLUTION: Projections 12 projected in height higher than another top face of an edge 11 and brought into contact with an underside nearer to an outer circumference than the end face 31 of the inner circumference of a top plate 3 are formed to a top face near to the external vertical member 2 of the edge 11 at the upper end of an internal vertical member 1. Accordingly, the state of the contact of the underside of the top plate 3 and a part of the edge 11 is ensured at a place nearer to the outer circumference than the end face 31 of the inner circumference, and the underside of the top plate 3 and the edge 11 of the internal vertical member 1 can be spot-welded at a place excepting the position of fillet weld.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a headstock arranged at a corner of a roof parapet.

[0002]

2. Description of the Related Art Since a headstock arranged at a corner portion of a roof parapet cannot be extruded, an inner vertical member and an outer vertical member which are curved concentrically and face each other, and both vertical members. It is composed of three members, a top plate that straddles between materials, and as shown in FIG. 6, the top and bottom edges of the top plate are placed on the edges formed at the upper ends of the inner vertical member and the outer vertical member, and fillet welding is performed. By doing so, it is integrated with both vertical members.

Prior to this welding, the top plate must be positioned with respect to the inner vertical member and the outer vertical member and temporarily fixed by spot welding or the like. The outer peripheral portion of the top plate is closer to the inner periphery than the end face and is outer. Since it contacts the edge of the vertical member, spot welding can be performed at the contact point on the inner peripheral side of the fillet welding position, whereas the inner peripheral part of the top plate contacts the edge of the inner vertical member on the lower surface of the end face. Since a gap is created between the lower surface near the outer periphery of the contact point and the edge, spot welding cannot be performed at a position other than the fillet welding position.

Although the inner peripheral portion of the top plate and the inner vertical member cannot be spot-welded at the position of the end face which contacts the edge, the end face is projected to the outer vertical member side from the main body of the inner vertical member for spot welding. Since it has to be located at the edge of the top, the continuity between the top surface of the top plate and the surface of the inner longitudinal member after the fillet welding is lost. Also, since the top plate is used by cutting one plate into a fan shape, the end faces that are the cuts of the inner circumference and the outer circumference are not smooth, so the lower surface of the inner circumference end surface that should contact the edge of the inner vertical member and the inner surface. A gap is also likely to occur between the edge of the vertical member and spot welding at that position is difficult.

From the above background, the present invention proposes a coping for corners which can be spot-welded for temporarily fixing the top plate to the inner vertical member.

[0006]

According to the present invention, at the upper edge of the inner vertical member, the upper surface of the inner vertical member, which is closer to the outer vertical member, projects higher than the other upper surface of the edge, and the lower surface is closer to the outer periphery than the inner end surface of the top plate. By forming the contacting protrusions, the contact state between the lower surface and a part of the edge is secured closer to the outer circumference than the end surface of the inner circumference, and the lower surface of the top plate and the edge of the inner vertical member are removed at the position where the fillet welding position is removed. Allows spot welding.

Since the top plate comes into contact with a part of the edge of the inner vertical member on the smooth lower surface by forming the protrusion on the upper surface of the edge of the inner vertical member, a continuous contact state in the circumferential direction can be obtained. It becomes possible to perform spot welding at any position in the circumferential direction.

Since the spot welding is performed closer to the outer circumference than the inner circumference end surface, the inner circumference end surface can be positioned on the main body of the inner vertical member, and the top plate upper surface and the inner vertical surface after the end surface is fillet welded. The continuity of the material surface is maintained.

The top plate is temporarily fixed in a state of being positioned with respect to the inner vertical member by the spot welding of the lower surface on the inner peripheral side to the protrusion, and the end face which is the cut end on the inner peripheral side is on the main body of the inner vertical member. Is joined to the inner vertical member by being fillet welded to the upper surface of the edge located at. The lower surface of the outer peripheral side is spot welded to the upper surface of the edge of the outer vertical member with which it comes into contact and temporarily fixed,
The end face of the outer periphery is fillet welded to the edge and joined to the outer vertical member.

Since the top plate is joined to both the inner vertical member and the outer vertical member in a state of being temporarily fixed by spot welding, the accuracy is improved and the production accuracy of the headstock is also improved. Will be reduced.

[0011]

BEST MODE FOR CARRYING OUT THE INVENTION In the present invention, as shown in FIGS. 1 and 2, an inner vertical member 1 and an outer vertical member 2 which are curved in an out-of-plane direction and are opposed to each other with a constant space therebetween, and both vertical members 1 are provided. , 2 composed of a fan-shaped top plate 3 extending between the upper ends of the top plate 3 and the end face of the inner periphery of the top plate 3.
The corner angle of the roof parapet 5 which is 31 and the end face 32 of the outer periphery are welded and assembled to the upper surfaces of the edges 11 and 21 formed at the upper ends of the inner vertical member 1 and the outer vertical member 2, respectively, and curved in a plane and arc shape. It is the Kasaki 4 arranged in the section.

As shown in FIG. 3 and FIG. 4 which is an enlarged view of the inner peripheral portion of the top plate 3, the edge 11 at the upper end of the inner vertical member 1 is formed by bending toward the outer vertical member 2 and the outer vertical member thereof. A projection 12 is formed on the upper surface nearer to the edge 2 than the other upper surface of the edge 11. The protrusion 12 contacts the lower surface of the top plate 3 closer to the outer circumference than the end surface 31 of the inner circumference, and the inner peripheral portion of the top plate 3 is in cross section, and the lower surface of the end surface 31 is placed on the edge 11 of the inner vertical member 1. , And contact the edge 11 at two points, that point and the position of the protrusion 12.

An edge 21 at the upper end of the outer vertical member 2 is formed by bending toward the inner vertical member 1, and the outer peripheral portion of the top plate 3 has an end surface 32 in cross section.
With the lower surface closer to the inner circumference resting on the edge 21 of the outer longitudinal member 2, one of the points contacts the edge 21. The inner peripheral end surface 31 of the top plate 3 is located on the main body of the inner vertical member 1, and the outer peripheral end surface 32 is located on the main body of the outer vertical member 2.

The top plate 3 is positioned vertically with respect to the inner vertical member 1 and the outer vertical member 2 and is partially longitudinally cut in the circumferential direction as shown in FIG. 5, which is a sectional view taken along line xx of FIG. Edge on top and bottom
It is temporarily fixed by spot welding at the position where it contacts 11 and 21. The inner peripheral side of the top plate 3 is spot-welded at the position of the protrusion 12 of the inner vertical member 1, and the outer peripheral side is spot-welded at the position of contact with the edge 21. The circles in FIG. 5 indicate the spot welding marks.

After the top plate 3 is spot-welded to the inner vertical member 1 and the outer vertical member 2, the inner peripheral end surface 31 is the upper surface of the edge 11 of the inner vertical member 1 and the outer peripheral end surface 32 is the outer vertical member 2. The fillets are welded to the upper surface of the edge 21, respectively, and at the same time, the assembly of the headstock 4 is completed. The inner peripheral end surface 31 and the outer peripheral end surface 32 of the top plate 3 are respectively the inner longitudinal member 1
Since it is located on the main body of the outer vertical member 2, the top surface of the top plate 3, the surface of the inner vertical member 1, and the surface of the outer vertical member 2 are continuous by the weld metal.

[0016]

EFFECTS OF THE INVENTION At the upper edge of the upper end of the inner vertical member, a projection is formed on the upper surface near the outer vertical member so as to project higher than the other upper surface of the edge, and contact the lower surface near the outer circumference from the inner end surface of the top plate. Since the inner surface is closer to the outer periphery than the end surface, the lower surface and part of the edge are in contact with each other, and the bottom surface of the top plate and the edge of the inner vertical member can be spot welded at a position where the fillet welding position is removed. become.
In particular, since the top plate comes into contact with the edge on the smooth lower surface, a continuous contact state in the circumferential direction can be obtained, and spot welding can be performed at any position in the circumferential direction.

As a result, the top plate is joined to both the inner vertical member and the outer vertical member in a state of being temporarily fixed by spot welding, so that the accuracy is improved and the production accuracy of the headstock is also improved. Variation is reduced.

Further, since the spot welding is performed closer to the outer circumference than the inner circumference end surface, the inner circumference end surface can be located on the main body of the inner vertical member, and the inner surface of the top plate and the inner surface after fillet welding the end surface. The continuity of the surface of the longitudinal member is maintained.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a head tree.

FIG. 2 is a plan view of FIG.

FIG. 3 is a vertical cross-sectional view showing the relationship between a head tree and a roof parapet.

FIG. 4 is an enlarged view of an inner peripheral portion of the top plate of FIG.

5 is a cross-sectional view taken along line xx of FIG.

FIG. 6 is a vertical cross-sectional view showing a relationship between a conventional top board and a vertical member.

[Explanation of symbols]

1 …… inside vertical member, 11 …… edge, 12 …… projection, 2 …… outer vertical member, 21 …… edge, 3 …… top plate, 31 …… inner end face, 32 ……
Edges of the outer circumference, 4 …… Kasagi, 5 …… Rooftop parapet.

Claims (1)

[Claims] 1. An inner vertical member and an outer vertical member that are curved in an out-of-plane direction and face each other with a constant interval in the normal direction of the curved curved surface, and a fan-shaped top plate that extends between the upper ends of both vertical members. The inner and outer end surfaces of the top plate are placed on the edges formed on the upper ends of the inner and outer vertical members, respectively, and are welded together to form a flat, arc-shaped curve. It is a tree that is placed at the corner of the roof parapet.The edge of the upper end of the inner vertical member is formed by bending toward the outer vertical member, and the upper surface near the outer vertical member projects higher than the other upper surface of the edge. , A roof tree for a roof parapet, in which a protrusion is formed to contact a lower surface closer to the outer circumference than the inner end surface of the top plate.