JPH10237961A - Cover plate of expansion joint device for roof - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide the cover plate of an expansion joint device, in which production cost can be reduced in response to the gap, for absorbing strain in buildings in various width and site works are facilitated. SOLUTION: In the cover plate 50 constituted in the expansion joint device for the roof, a sliding hanging bar 40 is hung between base frame bases 10, 10 fixed onto both buildings (a), (a) holding a gap G for absorbing strain, and the hanging bar 40 is covered with the cover plate 50 having a shallow inverted grooved cross section and the opening of the gap G is concealed in a cricket shape. An engaging rib 73 streaked to the inward of the vertical wall section 72 of the cover plate 50 is formed in the shallow inverted grooved cross section fitted to the retaining end member 44 of the hanging bar 40 at that time. The upper plate section of the cover plate 50 is divided into three in the longitudinal direction in a central member 60 having standard width and side-edge side members 70 consisting of a plurality of kinds of members having the different width of the upper plate sections, continuously connecting structure 51 extended in the longitudinal direction are configured to the dividing sections of the central member 60 and the side-edge side members 70, and both members 60, 70 are linked and unified in the cross direction and used and made to correspond to the width of the gap G for absorbing strain.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an expansion joint apparatus for covering a strain absorbing gap provided in a building, and more particularly to a roof expansion joint apparatus for covering the structure of a roof expansion joint apparatus from the outside. The cover plate.

[0002]

2. Description of the Related Art A building is provided with a strain absorbing gap structure as a means for preventing the building from being destroyed due to expansion and contraction due to temperature change, uneven settlement, and strain caused by an earthquake or the like, and conceals this gap structure. As a structure, an expansion joint for a roof is used which slidably covers and connects the ends of a building with a gap therebetween with a cover plate, and allows rainwater to flow out of the gap with the cover plate.

[0003]

This type of roof expansion joint is designed to cover the gap for absorbing the strain and to allow the gap width to vary due to the strain. However, the width of the gap varies from 50 to 300 mm or more depending on the construction site, depending on the site. Therefore, it is necessary to provide a cover plate for the expansion joint corresponding to the size of the gap width. A cover plate having a width suitable for each site can be prepared by sheet metal processing each time, or a cover plate can be formed by using an aluminum strip. In the case of molding the same, it is necessary to use a number of component types corresponding to the width of the gap.

[0004] That is, when the cover plate is sheet-metal processed each time according to the former as in the former case, the cover plate is cut off from the plate material, so that the yield of the material is deteriorated and the material cost is increased. It has the disadvantage of increasing the number of man-hours and on-site construction, and in the case of the latter, it is necessary to prepare various types of cover plates corresponding to each width in advance, not only soaring the die cost, There were problems such as the necessity of inventory management of various molded parts.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems, and it is possible to cope with a gap for absorbing a strain in a building having a different width in a roof expansion joint device, thereby reducing production costs. It is an object of the present invention to provide a cover plate for a roof expansion joint device having a new structure that facilitates on-site construction.

[0006]

According to the present invention, a cover plate of an expansion joint device for a roof used in a strain absorbing gap of a building of the same height level according to the present invention is provided at an end of both buildings sandwiching the strain absorbing gap. A plurality of sliding hanging bars are pivotally mounted between the base frames fixed along the edge so as to be able to expand and contract in the width direction of the gap for strain absorption and to be able to tilt freely. In a roof expansion joint device having a structure in which a cover plate having a shallow inverted groove-shaped cross section is provided and a roof surface opening between both buildings sandwiching the strain absorption gap is concealed in a small roof shape, the cover plate is An engaging rib is provided on the inner wall of the lower edge of the vertical wall portion as a vertical wall portion where both side edges of the upper plate portion are bent downward, and both ends of the hanging bar are fitted with locking ends bent downward respectively. A shallow inverted groove-shaped cross-section, and the upper plate portion of the cover plate is a central member, and both side edge portions integrated with the vertical wall portion While tripartite longitudinally bets,
The center member has a reference width, and the side edge member is formed of a plurality of types of members having different widths of the upper plate portion, and extends in a longitudinal direction at a divided portion between the center member and the side edge member. The gist of the present invention is to form an articulated structure and combine and use a side edge member having a width selected in accordance with the width of the strain absorbing gap with a central member.

A cover plate of an expansion joint device for a roof used for a gap for absorbing a strain in a building having a different height level includes:
Between the wall surface of the two buildings and the base frame fixed along the edge with the gap for strain absorption interposed therebetween, the wall surface side base and the vertical direction swingable, and the edge side base frame A plurality of sliding hanging bars are pivotally mounted so as to be able to expand and contract in the width direction of the strain absorbing gap, and a cover plate having an L-shaped cross section is provided on the hanging bar to sandwich the strain absorbing gap. In a roof expansion joint device having a structure in which a roof opening between both buildings is concealed in a one-way roof shape, the cover plate is vertically swung with a side edge of a wall surface side of an upper plate portion relative to the wall surface base frame. An engaging rib is provided on the inner wall of the lower edge of the vertical wall as a vertical wall with the side edge on the edge side bent downward, and a locking end bent at one end of the hanging bar downward; The upper plate portion of the cover plate is formed in a longitudinal direction with a wall-side member and a side edge-side member integrated with the vertical wall portion. At the same time, the wall-side member has a reference width and constitutes a pivotal connection structure with the wall-side base frame, and the side edge-side member is made of a plurality of members having different widths of the upper plate portion. And a connecting structure extending in the longitudinal direction at a divided portion of the wall surface side member and the side edge side member, and the side edge side member having a width selected according to the width of the strain absorbing gap is defined as the wall side member. The gist of the invention is to combine and use it in an integrated manner.

[0008] The connecting structure can be a mutual holding type connecting structure in which the connecting structure is engaged in the extended position and released in the bent position, and the connecting operation of the cover plate can be performed with one touch. Further, the lip portion of the water return gasket fixed to the edge side base frame may be configured to be in close contact with the back surface of the cover plate. The return gasket acts to prevent rainwater from being blown by a crosswind under a strong wind.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of a cover plate of a roof expansion joint device used in a strain absorbing gap according to the present invention will be described with reference to FIGS. This will be described with reference to FIG.

Reference symbol G denotes a strain absorbing gap formed between the side walls of the two buildings a and a which are constructed side by side as means for preventing the destruction of the buildings caused by expansion and contraction due to temperature change, unequal subsidence, and strain due to an earthquake or the like. It is. In this embodiment, the gap G for strain absorption is used.
The roof level of both buildings a, a that conceal the roof is the same,
On the upper surfaces of the parapets b, b formed on the upper edges of both buildings a, a, the base frames 10, 1 made of a material made of aluminum plucked wood.
No. 0 is fixed along the parapets b, b by anchor bolts U, respectively.

The base frame 10 has a pin sliding groove 12 extending in the longitudinal direction on one side of the bottom plate portion 11 and on the side of the strain absorbing gap G, and a gasket fitting groove extending in the longitudinal direction on the opposite side. The locking ribs 13 and 15 are provided on the inner edges of the grooves 12 and 14, respectively.

Reference numeral 20 denotes a pin sliding groove 1 of the base frame 10.
2, a sliding base 21 is inserted into the sliding base 21, and a substantially spherical engaging pin 22 is projected from the center of the sliding base 21, and the sliding pin 20 extends longitudinally along the pin sliding groove 12. It is pivoted so that it can slide in the direction. Reference numeral 30 denotes a water return gasket in which the base portion 31 is fitted into the gasket fitting groove 14 of the frame base material 10, and is fixed so that the curved direction of the lip portion 32 is located rearward of the strain absorbing gap G. Become.

A bar body 41 of a slide hanging bar 40 having an inverted groove-shaped cross section is formed on the base frames 10, 10 by externally inserting the groove portion 42 into the engaging pin 22 of the sliding pin 20. The hook 42 is hung so as to be tiltable in the horizontal and vertical directions. A locking rib 43 is provided on the inner edge of the groove of the groove 42 and the bar body 4
Locking end members 44, 44 extending downward are respectively fitted and integrated with both ends of the first member. The bar main body 41 is formed of a material to be pulled from aluminum and cut and used so as to match the width of the gap G for strain absorption. A plurality of types having different lengths may be prepared in advance. it can.

Reference numeral 50 denotes a cover plate having a shallow inverted groove-shaped cross section provided on the sliding hanging bar 40. The upper plate has a central member 60 and both side edge members 7 integrated with the vertical wall.
0 and 70 in the longitudinal direction. The central member 6
Numeral 0 has a reference width L1 and a reinforcing rib 6 protruding downward from the center of the upper plate portion 61 having a loose angled cross section.
2, and male fitting protrusions 63, 63 are provided on both side edges of the upper plate portion 61.

The side edge side member 70 has a vertical wall portion bent to be vertically downward on the outer edge of an upper plate portion 71 having substantially the same inclination angle as the upper plate portion 61 of the central member 60. An engaging rib 73 that engages with the engaging end member 44 of the hanging bar 40 is provided on the lower edge inner wall of the vertical wall portion 72 to form an elastic fitting structure that engages upward. It is composed. On the inner edge of the upper plate portion 71, a female fitting recess 74 is press-fitted to the male fitting projection 53 of the center member 60, and the center member 60 and the side edge member 70 are formed. Is formed.

The side edge member 70 has a width L of the upper plate 71.
2 are prepared, and a member corresponding to the length of the bar body 41 of the hanging bar 40, which is adjusted in length according to the width of the strain absorbing gap G, is used. The connecting structure 51 of the member 60 and the side edge member 70 is fitted to form a cover plate 50 having a shallow inverted groove-shaped cross section.

Reference numeral 80 denotes a water stop formed by forming a thick flexible resin sheet or the like and loosely stretched between the frame bases 10, 10 so as to form a gutter structure in the strain absorbing gap G. It is a cover. Reference numeral 81 denotes a caulking material.

The expansion joint device for a roof constructed as described above is installed in the gap G for strain absorption as shown in FIG. (1) An anchor bolt U is planted at the upper end of the parapet b, and the water stop cover 80 is set between both parapets b. (See FIG. 4 (a))

(2) The bottom plates 11 of the base frames 10, 10 are fastened and fixed to the anchor bolts U of both parapets b, b, respectively, from above the water stop cover 80, and caulking is performed at the location indicated by the arrow A. (See FIG. 4B)

(3) The sliding base 21 of the sliding pin 20 is inserted into the pin sliding groove 12 of the base frame 10 from the end of the groove, and the sliding hanging bar 40 is formed on the engaging pins 22, 22. The groove portions 42 of the bar body 41 to be inserted are extrapolated, and the locking end members 44, 44 are fitted to both ends of the bar body 41, respectively, so that the base frames of the two buildings a, a with the strain absorption gap G interposed therebetween. The bar main body 41 is erected between the tables 10 and 10 in a tiltable and slidable manner.

The base 31 of the water return gasket 3 is fitted into the gasket fitting groove 14 of the base frame 10, and the lip 32
Bend outward and attach upward.
(See FIG. 4 (c))

(4) The width L2 of both side edge members 70, 70 is adjusted so that the cover plate 50 has a width corresponding to the length L between the two locking end members 44, 44 of the sliding hanging bar 40. The center member 60 having the selected reference width L1 and the connecting structure 51 are selected.
The male fitting protrusions 53 and the female fitting recesses 74 are fitted and connected to each other so that the distance between the engagement ribs 73 is L (= L1 + 2 × L2).

The cover plate 50 is mounted on the slide hanging bar 40 from above, and the engaging ribs 73 of the both hanging walls 72, 72 are elastically engaged with the edges of the locking end member 44, respectively. Combine. At this time, the reinforcing rib 62 of the central member 60 is
0, and the installation of the expansion joint device is completed. (See Fig. 4 (d))

[0024]

【Example】

[Embodiment 1] Fig. 5 shows another embodiment of an expansion joint device for a roof. In this embodiment, the roof level of the two buildings concealing the strain absorbing gap G is different, and the roof level is high. An expansion joint device is formed between the wall c of the building a1 and the upper edge of the parapet b of the adjacent building a having a lower roof level.

A base frame 10 fixed on the upper surface of the parapet b
Is the same as that described in the embodiment of the present invention, and the description is omitted. A base frame 100 fixed to the wall surface c of the building is made of a material made of aluminum and is fixed by anchor bolts U in parallel with the parapet b, and extends in the longitudinal direction to the lower side of the bottom plate portion 101. A hinge frame fitting groove 102 is formed, and a column-shaped hinge ridge 103 extending in the longitudinal direction is provided on the upper side.

Reference numeral 110 denotes the hinge frame fitting groove 1.
02 is a hinge frame that is fixed to the base frame 100 by bolts 112 while fitting the base 111 to the base frame 100. The tip of the bent flat support portion 113 has an axis parallel to the longitudinal direction of the base frame 100. And a cylindrical bearing shaft 114 is formed.

The sliding pin 20 and the water return gasket 30 to be assembled to the base frame 10 are the same as those in the embodiment of the present invention, and the description is omitted.

Reference numeral 120 denotes a sliding hanging bar made of an aluminum towed material having an inverted groove-shaped cross section, and a shaft hole 121 having a guide slit is formed at one end thereof. The structure is such that it is pivotally attached to the support shaft 114 so as to be swingable in the vertical direction.

The groove 123 of the bar body 122 is externally inserted into the engaging pin 22 of the sliding pin 20 and is hung so as to be tiltable in the horizontal and vertical directions. And a locking end member 125 extending downward is fitted and integrated with the other end of the bar body 122. The bar main body 122 is cut and used so as to match the width of the strain absorbing gap G, and a plurality of types having different lengths can be prepared in advance.

Reference numeral 130 denotes a cover member support frame in which the cylindrical hinge ridge 103 and the hinge groove 131 of the base frame 100 are rotatably fitted.
The frame fixing edge 143 of 41 is tightly fixed with a screw.

Reference numeral 140 denotes a cover plate having a one-way inclined cross section provided on the sliding hanging bar 120. The upper plate portion has a wall surface side member 141, and both side edge side members 70 integrated with the vertical wall portion. 70 and two in the longitudinal direction. The wall surface member 141 has a reference width L1, and a frame fixing edge 1 is attached to a high position side edge of an upper plate portion 142 having a gentle inclined cross section.
43 is bent, and 144 male fitting protrusions are provided on the other side edge of the upper plate portion 142.

The side edge member 70 is the same as that described in the embodiment of the present invention. The outer edge of the upper plate portion 71 having substantially the same inclination angle as the upper plate portion 61 of the center member 60 is provided. Vertical wall portion 7 bent so as to be vertical downward
2 and the hanging bar 1 is attached to the lower edge inner wall of the vertical wall portion 72.
An engaging rib 73 for engaging with the locking end member 125 of the 20 is provided to form an elastic fitting structure for engaging upward.

On the inner edge of the upper plate portion 71, a female fitting concave ridge 74 is press-fitted to the male fitting ridge 144 of the wall surface member 141. And the connecting structure 51 of the side edge side member 70.

The side edge member 70 has a width L of the upper plate 71.
A plurality of different members are prepared, and the connecting structure 51 of the wall surface side member 141 and the side edge side member 70 is fitted to form the cover plate 140 in a continuous configuration.

Reference numeral 80 denotes a water-stop cover formed of a thick flexible resin sheet or rubber sheet or the like and loosely stretched between both base frames so as to form a gutter structure in the gap G for strain absorption. It is. Reference numeral 81 denotes a caulking material, and reference numeral 82.
Is an insulating material made of sponge rubber.

[Other Embodiments] FIG.
It is another Example which shows the structure of the connection structure 51 of (140). The connecting structure 51 has a hinge structure in which the male ridge 56 is extended and rotated with respect to the female concave ridge 55 until the surface of the cover plate becomes the same surface (see FIG. 5A). 90
When they are bent to a degree close to each other (see FIG. 5 (b)), they form a mutual gripping type in which they are disengaged and released.

In the connecting structure 51, when the central member 60 or the wall surface side member 141 and the side edge side member 70 are connected and integrated in the width direction, the upper plate portion is connected so as to maintain the same plane. It goes without saying that various methods can be adopted in addition to the embodiments.

[0038]

As described above, in the cover plate of the expansion joint device for a roof according to the present invention, a part of the cover plate is divided into a main part and a connecting structure, and the divided part (side edge member). By changing the width of the structure, a structure corresponding to the gap for absorbing the strain between buildings having various widths is obtained.

Therefore, in the expansion joint device for a roof according to the present invention, it is possible to reduce the number of types of parts in stock used for the gaps for absorbing the strains of buildings having different widths, thereby reducing the production cost. it can. Further, since the present invention can be carried out only by assembling factory products, it has a feature that on-site construction is easy, and the effect of the present invention is extremely large.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view of a roof expansion joint device according to an embodiment of the present invention, showing a construction state of an expansion joint device for a roof.

FIG. 2 is a plan view of a main part with the same part cut away.

FIG. 3 is an enlarged longitudinal sectional view of a main part showing a connection structure of the cover plate.

FIGS. 4 (a), (b), (c) and (d) are explanatory views showing on-site construction procedures of the expansion joint device for a roof.

FIG. 5 is a longitudinal sectional view of a roof expansion joint device showing another embodiment of a cover plate according to the present invention in an installed state.

FIG. 6 is a plan view of a main part with the same part cut away.

FIGS. 7A and 7B are longitudinal sectional views of a main part showing another embodiment of the connecting structure of the cover plate, wherein FIG. 7A shows an extended connecting state, and FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Base frame 20 Sliding pin 30 Water return gasket 40 Sliding hanging bar 41 Bar main body 44 Locking end member 50 Cover plate 51 Connecting structure 60 Central member 63 Male fitting protrusion 70 Side edge member 72 Vertical wall 73 Engagement rib 74 Female fitting concave ridge 100 Base frame 110 Hinge frame 120 Sliding hanging bar 130 Cover member support frame 140 Cover plate 141 Wall side member 144 Male fitting ridge G Strain absorbing gap a Construction Thing b parapet c wall

Claims (6)

[Claims] A plurality of slides are provided between base frames fixed along the edges of both buildings with a gap for strain absorption therebetween so as to be able to expand and contract in the width direction of the gap for strain absorption and to tilt freely. A movable hanging bar is pivotally mounted on the hanging bar, and a cover plate having a shallow inverted groove-shaped cross section is provided on the hanging bar, and a roof surface opening between the two buildings sandwiching the strain absorbing gap is formed in a small roof shape. The expansion joint device for a roof having a structure of concealing the cover plate, wherein the cover plate is formed as a vertical wall portion in which both side edges of an upper plate portion are bent downward, and an engaging rib is provided on an inner wall of a lower edge of the vertical wall portion, Both ends of the bar have a shallow inverted groove-shaped cross-section that constitutes a fitting structure with a locking end bent downward, and the upper plate portion of the cover plate is a central member and both side edge sides integrated with the vertical wall portion The center member has a reference width, and the side edge members have a plurality of types having different widths of the upper plate portion. A longitudinally extending connecting structure is formed at the divided portion of the central member and the side edge side member, and the side edge side member having a width selected according to the width of the strain absorbing gap is defined as the central member. A cover plate for an expansion joint device for a roof, wherein the cover plate is used in combination and connected and used. 2. The connecting structure according to claim 1, wherein the connecting structure is an interlocking type connecting structure that is engaged in an extended posture and released in a bent posture.
A cover plate for the expansion joint device for a roof according to the above. 3. The cover plate of the expansion joint device for a roof according to claim 1, wherein a lip portion of the water return gasket fixed to the edge side base frame has a structure in which the lip portion is in close contact with the back surface of the cover plate. 4. A wall-side base frame and a base frame fixed along the edge of the two structures sandwiching the gap for strain absorption and swingable in the vertical direction, and on the edge side. A plurality of sliding hanging bars are pivotally mounted on the base frame and the strain absorbing gap so as to be able to expand and contract in the width direction, and a cover plate having an L-shaped cross section is provided on the hanging bar to absorb the strain. A roof expansion joint device having a structure that conceals a roof opening between both buildings with a gap between them in a one-sided roof shape, wherein the cover plate is provided with a side edge of a wall surface side of an upper plate portion on the wall surface side base frame. And vertically pivotably swingable, and an engaging rib is provided on the inner wall of the lower edge of the vertical wall as a vertical wall bent downward at the side of the end edge, and one end of the hanging bar is lowered downward. An L-shaped cross-section comprising a fitting structure with the bent locking end, wherein the upper plate portion of the cover plate is a wall surface member, and a side edge member integral with the vertical wall portion. Along with dividing into two in the longitudinal direction, the wall side member has a reference width and constitutes a pivotal connection structure with the wall side base frame, and the side edge side member has a different width of the upper plate portion. A longitudinally extending connecting structure at a divided portion of the wall surface side member and the side edge side member, and a side edge side member having a width selected according to the width of the gap for strain absorption. A cover plate for an expansion joint device for a roof, wherein the cover plate is used in combination and integrated with a wall side member. 5. The interlocking structure according to claim 4, wherein the connecting structure is engaged in an extended position and released in a bent position.
A cover plate for the expansion joint device for a roof according to the above. 6. The cover plate of the expansion joint device for a roof according to claim 4, wherein a lip portion of the water return gasket fixed to the edge side base frame has a structure in which the lip portion is in close contact with the back surface of the cover plate.