JPS63885Y2 - - Google Patents

Description

[Detailed Description of the Invention] Technical Field The present invention relates to an expansion joint for joints in architectural structures.

BACKGROUND ART In a typical prior art, edge materials are fixed on both sides of a joint, both sides of an elastic body covering the joint are partially placed on the edge material, and the sides of the elastic body are attached to the edge from above. It has a clamping piece that clamps the material together with the material.

Problems to be solved by the invention In such prior art, when the force of clamping the elastic body between the edge material and the clamping piece is excessively large, the elastic body is strongly compressed and its life is shortened. Alternatively, the elastic body may break. Therefore, the force for clamping the elastic body must be determined appropriately, which makes on-site construction work complicated.

Another problem with this prior art is that when a person walks or a car runs on the upper part of the expansion joint, the clamping pieces that clamp the elastic body are pressed and bend. Therefore, the pressing piece becomes fatigued due to repeated loads. Therefore, the life of the clamping piece is shortened. Moreover, the pressing force acting on the clamping piece acts on the elastic body,
This may cause an excessively large compressive force to act on the elastic body. Therefore, the life of the elastic body may be shortened or it may break.

The purpose of the present invention is to provide an expansion joint for joints that can be easily installed on site and can be used for a long period of time without the risk of damage. be.

Means for Solving the Problems The present invention fixes edge materials 1, 1' to each of a pair of architectural structures 3, 3', 9, 9' having joints 14, and ′ includes a rising portion 12 facing the opposing surface of the building structures 3, 3′, 9, and 9′, and a groove-shaped fixing recess that is continuous with the rising portion 12 and opens upward on the outside of the rising portion 12. The main body 15, which is arranged in the joint 14 and has portions 5 and 5' extending in the longitudinal direction, is composed of an elastic body 4 and cover materials 2 and 2', and both side edges of the elastic body 4 are covered with a pair of covers. material 2,
The covering materials 2, 2' cover the upper parts of the edge materials 1, 1' from the side of the joint 14,
Further, it partially covers the building structures 3, 3', 9, 9' and hangs downward from the inner edge of the covering material 2, 2'.
A hanging part 16 that comes into contact with the side surface facing the joint 14 of the rising part 12, and a fitter 6 that fits into the fixing recesses 5 and 5'.
On the side surface of the hanging portion 16 on the side of the elastic body 4, a plurality of sawtooth-like uneven portions 10 that expand outward from the joint 14 as it goes downward are formed sequentially in the upper and lower directions. The side edges of the elastic body 4 are fitted into the portion 10 and fixed, and the screws 7 and 7' are inserted into the fixing recesses 5 and 5' by passing through the fittings 6 of the cover materials 2 and 2'. cover material 2,
2' are screwed together, and the upper surfaces of the elastic body 4 and the cover materials 2, 2' are roughly arcuate upwardly convex, and the lower portions of the outer ends of the cover materials 2, 2' are fitted with Child 6
This joint expansion joint is characterized in that waterproof sealing materials 11, 11' are attached to the upper surfaces of the building structures 3, 3', 9, 9' on the outer side thereof.

Effect According to the present invention, the edging materials 1, 1' are respectively fixed to the pair of building structures 3, 3', 9, 9' having the joints 14, and the edging materials 1, 1' have the following: Expandable body 4
Place the bodies 15 of the pair of cover materials 2, 2' fixed on both sides of the frame, and insert the screws 7, 7' that pass through the bodies 15 and the insert 6 into the fixing recesses of the edge materials 1, 1'. 5 and 5', so when screwing in the screws 7, the work is done so that the cover materials 2 and 2' can be simply fixed to the edge materials 1 and 1'. In other words, there is no possibility that an undesirably excessive compressive force will be applied to the expandable body 4 during this construction work. Therefore, construction work on site is extremely simple and workability is improved.

In addition, when a person walks or a car runs on the upper part of the expansion joint, the compressive force acting on the main body 15 of the cover material 2, 2' is the building structure 3, 3', 9,
9' and the edges 1, 1'. Therefore, there is no risk of deformation of the cover members 2, 2', and therefore there is no risk of fatigue due to repeated loads. Therefore, the expansion joint can be used for a long period of time.

The elastic body 4 placed at the joint 14 fits into the uneven parts 10, 10' formed on the surface of the main body 15 of the cover material 2, 2' and the hanging part 16 on the side of the elastic body 4, and is fixed. This uneven portion 10 is
The surfaces of the main body 15 and the hanging part 16 have a sawtooth shape that spreads outward from the joint 14 as it goes downward, and a plurality of sawtooths are formed in sequence from top to bottom, so that it is difficult for people to walk or drive. When compressive force is applied from above to downwards on the stretchable body 4 during running, etc., the side portions of the stretchable body 4 become uneven parts 10 and 1.
0', and its uneven parts 10, 1
0'. Therefore, when compressive force is applied to the stretchable body 4, the stretchable body 4
There is no fear that the cover material will fall between the cover materials 2 and 2', and the strength is improved.

Furthermore, the upper surfaces of the stretchable body 4 and the cover materials 2, 2' are generally arc-shaped and convex upward. Therefore, when a compressive force is applied to the stretchable body 4 as described above, the side of the stretchable body 4 forms a sawtooth-shaped uneven portion 1.
The support is firmly pressed against the plates 0 and 10', thereby improving the strength.

Since the upper surfaces of the expandable member 4 and the cover members 2 and 2' are generally arcuate upwardly convex, rainwater may accumulate when the expansion joint is installed outdoors. It will flow smoothly and easily. Therefore, leakage of rainwater and the like into the joint 14 can be reliably prevented. In addition, by forming the arcuate shape with an upward convexity, it is possible for people to walk and cars to move smoothly.

In the edge members 1, 1', fixing recesses 5, 5' are formed in the longitudinal direction by a rising part 12 and an outer part 13 on the outer side thereof.
5' is open upward. The inserts 6 of the cover materials 2, 2' are fitted into the fixing recesses 5, 5', and the screws 7 are inserted through the main body 15 and the inserts 6 to secure the fixing recesses 5, 5'.
5', and is screwed into contact with the rising portion 12 and the outer portion 13. Therefore, only a portion of the outer peripheral surface of the screw 7 in the circumferential direction comes into contact with the rising portion 12 and the outer portion 13, thereby fixing the cover members 2, 2'. (1) Therefore, there is no need to carve female threads in the fixing recesses 5, 5', and work efficiency is improved. (2) Furthermore, by adjusting the length of the screws 7 in the fixing recesses 5, 5', the strength for fixing the cover materials 2, 2' to the edge materials 1, 1' can be adjusted. It is possible. Therefore, if it is not necessary to fix the cover material 2, 2' to the edge material 1, 1' with unnecessarily large strength using the screws 7, 7', the screws 7, 7'
7' can be selected to be short, and workability can be improved.

Moreover, the screws 7 and 7' are, as described above,
Since the rising portion 12 and the outer portion 13 only come into contact with each other within the fixing recess 5, it is not necessary to make the diameter of the screw 7 and the width of the fixing recesses 5, 5' unnecessarily high precision.

The fixing recesses 5, 5' extend in the longitudinal direction (that is, in the direction perpendicular to the plane of the paper of FIGS. 1 and 2, which will be described later), and are provided with the fixing recesses 5, 5' as described above. Screws 7 and 7' are screwed in. (1) Therefore, it is possible to easily position the cover members 2, 2' in the longitudinal direction. (2) Moreover, it is not necessary to unnecessarily determine the position in the longitudinal direction of the insertion hole formed in the main body 15 of the cover material 2, 2' and the insert 6 through which the screws 7, 7' are inserted with high precision; Work efficiency is also improved in this respect.

Waterproof sealing materials 11, 11' are attached to the lower portions of the outer ends of the cover materials 2, 2', and these waterproof sealing materials 11, 11' are located on the outer side of the inserts 6, 6' and It abuts on the upper surface of the structures 3, 3', 9, 9'. Therefore, it is possible to prevent rainwater from leaking into the joint 14. Even if rainwater etc. enters from the outside of the cover material 2, 2',
The rainwater flows into the fixed recesses 5 and 5',
Drainage can take place at the longitudinal ends of the fixing recesses 5, 5'. The fixing recess 5 has a relatively small width to which the screws 7 and 7' can be screwed, and therefore the structure for drainage at the longitudinal ends of the fixing recess 5 is miniaturized. hand,
It's convenient.

The edging members 1, 1' are made of metal and are fixed to the building structures 3, 3' by anchor bolts 8, 8'. After that, the upper surfaces of the building structures 3, 3' are finished with exterior walls 9, 9' such as mortar.
The fixing recesses 5, 5' of the rim members 1, 1' are exposed on the surface of the cover members 2, 2'. The cover members 2, 2' are made of metal material like the rim members 1, 1'. An elastic stretchable body 4 made of, for example, vinyl chloride is filled and fixed in the middle of the cover members 2, 2' by injection curing or adhesive.
In this case, when uneven portions 10, 10' are provided on the opposing surfaces of the cover materials 2, 2', the fixing is made more reliable. The cover materials 2, 2' and the stretchable body 4 are
The size of the recesses 5, 5' can be determined according to the joint width W of the building structure.
The cover material 2 is formed in the longitudinal direction of the cover 1' (the direction perpendicular to the paper surface of Figs. 1 and 2).
The fittings 6, 6' protruding from the underside of 2' are formed to correspond to the fixing recesses 5, 5' and may be provided at a fixed interval, with the screws 7, 7' being screwed into the desired locations.
Reference numerals 11, 11' denote waterproof sealants provided on the cover materials 2, 2', which prevent the intrusion of rainwater that would otherwise sneak under the surface of the cover materials 2, 2'. Joints 14 exist between the frameworks 3, 3' and the exterior walls 9, 9' that constitute the architectural structure. The edging material 1 has a rising portion 12 that faces the opposing surfaces of the framework 3, 3' and the exterior walls 9, 9', and an outer portion 13 that is continuous with the rising portion 12.
The outer portion 13 defines an upwardly open fixing recess 5 along its length on the outer side (left side in FIG. 1) of the rising portion 12. The other edge material 1' has a similar structure.

The cover material 2 includes (1) a main body 1 that covers the upper part of the edge material 1 from the side of the joint 14 and further partially covers the outer wall 9;
5, and (2) a rising portion 1 hanging downward from the main body 15.
A hanging portion 16 that comes into contact with the side facing the joint 14 of No. 2
and (3) a fitter 6 that projects from the lower part of the main body 15 and fits into the fixing recess 5. The uneven portion 10 is formed on the side surface of the elastic body 4 side with the hanging portion 16, and the uneven portion 10 is formed on the side surface of the elastic body 4 side with the hanging portion 16.
A plurality of them are sequentially formed vertically in a sawtooth shape that spreads to the left in the figure. The side edges of the elastic body 4 are fitted into and fixed to the uneven portions 10. The other cover material 2' also has a similar structure.

The screws 7 pass through the inserts 6, fit into the fixing recesses 5, and screw onto the cover members 2, 2'.

The upper surfaces of the elastic member 4 and the covering members 2, 2' are generally arcuate upwardly convex, as clearly shown in FIGS. 1 and 2.

The waterproof sealing material 11 comes into contact with the upper surface of the outer wall 9 on the outer side of the insert 6 (to the left in FIG. 1) at the lower part of the outer end side of the cover members 2, 2'.

As described above, in the present invention, the edge materials 1, 1'
is fixed to the frame 3, 3' of the building structure, and is attached to the outer wall 9,
This facilitates the finishing work of step 9'. In addition, by fitting the inserts 6, 6' into the fixing recesses 5, 5' of the edge materials 1, 1', the cover materials 2,
2' can be installed quickly and accurately, and by screwing screws 6 and 6' onto this,
This makes the installation even more secure. moreover,
The cover materials 2 and 2' are integrally fixed with the elastic body 4, which is intended to improve the watertightness of the joint, and also to prevent fluctuations in the building structure, such as uneven ground settlement. If there is a change in the joint width W of the building structure due to
It is something that can be dealt with.

Effects As described above, according to the present invention, expansion joints for joints can be easily constructed on site, and workability is good. Furthermore, even if a person walks or a car runs on the upper part of the expansion joint, the present invention does not suffer from the fatigue problems mentioned in connection with the prior art, and can be used for a long period of time. can do. The elastic body 4 is supported by the cover members 2, 2' with sufficient strength, and can prevent leakage of rainwater as much as possible, and also allows people to walk and cars to move smoothly. Furthermore, it is possible to easily adjust the strength of attachment of the cover materials 2, 2' to the edge materials 1, 1' by the screws 7, 7', improving the workability of screwing the screws 7, 7'. In addition, it is not necessary to unnecessarily improve the accuracy of the screws 7, 7' and the fixing recesses 5, 5', and furthermore, it is possible to easily position the cover members 2, 2' in the longitudinal direction. can. Furthermore, not only can leakage of rainwater be prevented as much as possible, but even if the rainwater leaks, it can be easily drained from the longitudinal ends of the fixed recesses 5, 5', which have relatively small widths. .

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, in which FIG. 1 is a longitudinal sectional view, and FIG. 2 is a separated vertical sectional view. Explanation of main symbols: 1, 1' are edge materials, 2, 2' are cover materials, 4 is elastic body, 5, 5' are fixed recesses, 6,
6' is an inlay.

Claims (1)

[Scope of claims for utility model registration] A pair of architectural structures 3, 3' each having joints 14,
The edge members 1, 1' are fixed to the edges 9, 9', respectively, and the edge members 1, 1' have a rising part 12 facing the opposite surface of the building structure 3, 3', 9, 9', and a rising edge. The main body 15 disposed in the joint 14 is formed in the outer side of the rising part 12 in the longitudinal direction with groove-shaped fixing recesses 5 and 5' that are open upward. and cover materials 2, 2', and both side edges of the elastic body 4 are covered with a pair of cover materials 2, 2'.
The covering materials 2, 2' cover the upper parts of the edge materials 1, 1' from the side of the joint 14,
Further, it partially covers the building structures 3, 3', 9, 9' and hangs downward from the inner edge of the covering material 2, 2'.
A hanging part 16 that comes into contact with the side surface facing the joint 14 of the rising part 12, and a fitter 6 that fits into the fixing recesses 5 and 5'.
On the side surface of the hanging portion 16 on the side of the elastic body 4, a plurality of sawtooth-like uneven portions 10 that expand outward from the joint 14 as it goes downward are formed sequentially in the upper and lower directions. The side edges of the elastic body 4 are fitted into the portion 10 and fixed, and the screws 7 and 7' are inserted into the fixing recesses 5 and 5' by inserting the fittings 6 of the cover materials 2 and 2'. Cover material 2,
2' are screwed together, and the upper surfaces of the elastic body 4 and the cover materials 2, 2' are roughly arcuate upwardly convex, and the lower portions of the outer ends of the cover materials 2, 2' are fitted with child 6
A joint expansion joint characterized in that waterproof sealing materials 11, 11' are attached to the upper surfaces of building structures 3, 3', 9, 9' on the outer side thereof.