JPH0224972B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention is applicable to structures mainly composed of adjacent concrete walls, such as wall-to-wall, roof-to-roof, wall-to-roof, floor-to-floor, floor-to-wall, or ceiling-to-ceiling. Regarding expansion joints installed in gaps, the purpose is to provide an expansion joint that can cope with relative movement due to expansion or contraction between buildings due to changes in the outside air and ensure watertightness. The purpose is to provide joint points.

Next, the first embodiment of the present invention will be explained with reference to FIG. This joint 1 is a covered expansion joint (hereinafter simply referred to as a joint), and the joint 1 is composed of a pair of fixed members 2 and 3, a sliding member 6, and a cover member 7.

2 and 3 are the above-mentioned pair of fixing members, which are installed opposite to the outdoor surfaces of the walls W and w';
Since the cross-sectional shape is formed symmetrically, the fixing member 2 on the left side in the figure will be explained.

This fixing member 2 is composed of two members, a mounting member 4 and a lid member 5, and both members 4 and 5 are made of wall material extruded from a light alloy material such as aluminum, and are both elongated. .

4 is a mounting member for the above-mentioned fixing member 2,
In its cross section, 4A is a mounting web which is provided horizontally, and an edge piece 4B which extends vertically to the outside with a predetermined projecting width is provided at the left end of the mounting web in the drawing.
Further, a protruding piece 4C is provided near the left end of the web 4A and is opposed to the edge piece 4B at a predetermined distance, and a groove 4D is formed along the longitudinal direction of the protruding piece 4C. Further, a surface 4E of the protruding piece 4C on the groove portion 4D side is formed to have a substantially sawtooth cross section. In addition, the mounting web 4
An edge piece 4F that extends outward is formed at the right end of A, and the outer end of the edge piece 4F extends at a right angle to the right in the figure by a predetermined length to slide and guide the sliding member 6. A guide piece 4G is formed. Further, a recess 4H into which a water stop plate 77 is fitted is formed on the right side surface of the edge piece 4F in the drawing. A groove 4J is provided on the upper surface side of the mounting web 4A of the mounting member 4 formed in this way.
is formed.

Reference numeral 5 denotes a lid member of the fixing member 2, which is mainly composed of a substantially flat web 5A, and the left end of the web 5A in the figure is inserted into the groove 4D of the mounting member 4, and has a substantially serrated cross section at the tip. A mounting piece 5B having an arrowhead-shaped locking portion 5C that engages with the surface 4F is provided, and a groove portion 5D is provided at the same end into which an airtight member 75 made of elastically deformable synthetic resin or synthetic rubber is fitted. It is formed along its longitudinal direction. Further, at the right end of the web 5A in the drawing, a projecting piece 5E is provided which projects vertically toward the guide piece 4G of the mounting member 4 and guides and holds the sliding member 6 with the guide piece 4G. A groove 5F into which an airtight member is fitted is formed at the right end.

6 is the above-mentioned sliding member, and this sliding member 6 is a flexible member formed into a shorter length than, for example, a spring steel material, and is arranged at a predetermined interval along the fixed members 2 and 3. The sliding web 6A is provided horizontally and is suspended horizontally between the fixing members 2 and 3, and has a length extending into the fixing members 2 and 3 at both ends. The engagement piece 6B is bent. Further, a recessed portion 6C as shown in the drawing is formed approximately in the center of the sliding web 6A, and a threaded portion 6D that is threadedly engaged with a connecting screw 76 connected to the cover member 7 is formed in the recessed portion. The entire sliding member 6 formed in this manner is elastically deformable. Furthermore, the length of the sliding web 6A is set to a length that can cover the gap T and cope with elastic deformation caused by relative movement of the building.

Reference numeral 7 is a cover member, which is made of a molded material extruded from a light alloy material such as aluminum, and is formed into a long length. In its cross section, 7A is a web provided almost horizontally, and its width is The dimensions are formed to a width that covers the gap T between the walls W and W' and the front surfaces of the left and right fixing members 2 and 3, and further extends slightly in the left and right direction, and airtight members are provided at both ends. A groove portion 7B into which the groove 75 is fitted is formed.
Further, in the longitudinal direction of the approximately central portion of the web 7A, holes 7C are formed at predetermined intervals through which connecting screws 76 for connecting with the sliding member 6 arranged between the fixing members 2 and 3 are inserted. has been done.

The mounting members 4, 4 of the fixing members 2, 3 formed as described above are attached to the wall W, as shown in the figure, respectively.
They are arranged in a connected manner along the outdoor surface of W' and are fixed by mounting bolts 78. A sliding member 6 is horizontally suspended at a predetermined interval between the mounting members 4, 4 disposed in this manner, and lid members 5, 5 are formed at the ends of the mounting members 4, 4, respectively. The mounting pieces 5B, 5B are attached to the grooves 4D, 4 of the mounting members 4, 4.
D, the locking portion 5C and the surface 4F are locked and assembled integrally, and a sliding member 6 is provided between the mutual fixing members 2 and 3 by a guide piece 4G and a protrusion piece 5E, as shown in the figure. It is held in such a way that it can be moved left and right. A cover member 7 is provided on the outdoor side of the left and right fixing members 2, 3 and the sliding member 6 attached in this way, and a connecting screw 76 is inserted into a hole 7C formed through the cover member 7 at approximately the center thereof. The cover member 7 is screwed onto the threaded portion 6D of the member 6, and is installed to shield the gap T between the walls W, W' and the outdoor side of the fixed members 2, 3, and the sliding member 6 is attached to the cover member 7. When the sliding member 6 is connected with the connecting screw 76, the sliding member 6 is deformed, and the restoring force of this deformation acts on the cover member 7 to pull it toward the walls W and W'. When a relative movement occurs between the buildings W and W', the cover member 7 and the sliding member 6, which are connected to the left and right fixing members 2 and 3 by the connecting screw 76, slide relative to each other. When the cover member 7 is attached in this way, the retracting action of the sliding member 6 causes the cover member 7 to
The watertight members 75 attached to both ends of the walls are elastically deformed and come into close contact with the outdoor surfaces of the walls W and W', and the airtight members 75 fitted into the grooves 5D and 5F of the lid member 5 are also covered. It is elastically deformed and in close contact with the back surface of the member 7.

Next, the operation and effect of the first embodiment configured as described above will be explained.

Now, the joint 1 in this example consists of two members: a mounting member 4 having a generally groove-shaped cross section along the longitudinal direction of the building frames W and W' of adjacent buildings, and a lid member 5 that closes the mounting member 4. The fixing members 2 and 3 are disposed opposite each other, and a cover member is provided on the outside of both the fixing members 2 and 3, spanning the fixing members 2 and 3 and shielding the gap T between the building frames W and W'. 7, and
A sliding member 6, which is slidably held between the fixing members 2 and 3 by the mounting member 4 and the lid member and whose entirety is elastically deformable, is interposed between the outer cover member 7 and the inner cover member. The cover member 7 is retracted and connected to the sliding member 6 on the building frame W, W' side by a connecting screw 76, and the cover member 7 and the sliding member 6 are connected to the lid member 5.
The structure is such that it can be slidably inserted in the expansion and contraction direction of the gap T between the frames W and W' inside and outside the frame. Therefore, the entire sliding member 6 is formed to be elastically deformable, and the mounting member 4 is disposed between the fixed members 2 and 3.
Since it is slidably interposed between the lid member 5 and the lid member 5, the building expands or contracts due to changes in the outside air and moves relative to each other, for example, in the direction of the solid arrow shown in the figure (in the left-right direction in the figure), and the gap T between Even if the joint 1 changes, the entire joint 1 maintains its expanded and contracted state, and the gap T is covered by the cover member 7. Furthermore, when the building relatively moves in the direction of the dashed arrow in the figure (in the vertical direction in the figure), since the entire sliding member 6 can be elastically deformed, it slides and is elastically deformed in accordance with the relative movement, and the joint is moved. 1 as a whole becomes elongated, so that the cover member 7 can be stably held and the gap T can be covered. Further, when the buildings W and W' move relative to each other, the cover member 7 is always subjected to a pulling action toward the buildings W and W' due to the elastic deformability of the sliding member 6, so the airtight member 75 is always Since it is in contact with the objects W, W' and the cover member 7, it is possible to prevent rainwater etc. from entering the gap T side and improve watertightness. In addition, since the sliding member 6 is provided so that its entirety can be elastically deformed, in particular,
Even if the cover member 7 is tilted due to relative movement of the building in the vertical direction in the figure, no particular external force will be applied to the cover member 7, and the fixing members 2 and 3 will not be pried and damaged. It has many features such as being able to increase the durability of the joint 1.

Next, FIG. 2 shows a second embodiment of the present invention, in which this joint 11 is a different aspect of the joint 1 of the first embodiment described above, and has a sliding member 16 and a cover member 17 different from each other. It is. That is, the sliding member 16 is made of a flexible material such as spring steel as in the first embodiment, and its sliding web 16A covers the gap T and prevents relative movement of the building. The fixing member 1 is provided horizontally and has a length that can cope with elastic deformation.
It is slidably provided between 2 and 13 in a pinch-like manner, and engagement pieces 16B are formed at both ends thereof. Also,
A hole 16C for vertically movably mounting the cylindrical body 18 is provided in approximately the center of the sliding web 16A. Reference numeral 18 denotes a cylindrical body which is attached to the hole 16C so as to be movable up and down, and a flange 18A for preventing the cylindrical body 18 from coming off is formed on the outer periphery of both ends thereof. and sliding web 16A
A spring 19 is mounted between the two. Furthermore, a screw threaded into the inner diameter portion of the cylindrical body 18 is threaded to engage with the connecting screw 76 . Note that this sliding member 1
6 is also formed to be elastically deformable in its entirety.

17 is a cover member of the joint 11,
It is made by extrusion molding a light alloy material such as aluminum, and its cross section is formed into a substantially mountain shape as shown in the figure, and grooves 17A into which the airtight member 75 is fitted are formed at both ends thereof. Furthermore, holes 17B through which connecting screws 76 are inserted are provided at predetermined intervals along the longitudinal direction of the cover member 7 at approximately the center thereof. Cover member 17 formed in this way
shields the gap T, and both ends thereof are fixed members 12, 1
It is formed in a width dimension that allows it to slide along the upper surface of 3.

The sliding member 16 formed in this manner is slidably held between the mounting member 14 of the fixing members 12 and 13 and the lid member 15, and the cover member 17 is screwed onto the cylinder body 18 via the connecting screw 76. They are combined and connected. Therefore, when this sliding member 16 is connected to the cover member 17 by the connecting screw 76,
The sliding member 16 is flexibly deformed, thereby functioning to draw the cover member 17 toward the buildings W and W'.

The mounting member 14 and the lid member 15 are the same as those in the first embodiment, and the mounting structure is also the same. Therefore, in this second embodiment as well, the first
In addition to obtaining the same effect as in the embodiment, since the spring 19 is elastically attached, the responsiveness is particularly good to the relative movement of the frame bodies W and W' in the vertical direction in the drawing.

Next, FIG. 3 shows a third embodiment of the present invention, in which this joint 21 is attached to shield a gap T1 between a floor W1 and a floor W1' of an adjacent building. The mounting members 24 of the fixing members 22 and 23 that are disposed opposite to each other on W1 and W1' are formed to have almost the same cross-sectional shape as the mounting members 4 and 14 of the first and second embodiments, so the same reference numeral is added to the number 24. did. Also, 2
Reference numeral 5 denotes a lid member for the fixing members 22 and 23, and a mounting piece having a locking portion 25C inserted into and engaged with a groove 24D of the mounting member 24 at one end of a web 25A that slides and guides the cover member 27. 25B is vertically provided, and a groove 25D into which the cushion member 28 is fitted is formed at the same end. Further, a guide piece 24 of the mounting member 24 is provided at the other end of the web 25A.
Projecting piece 2 that supports and guides the sliding member 26 in correspondence with G
5E is formed.

Reference numeral 26 denotes a sliding member, which is made of flexible spring steel or the like, and is formed in approximately the same shape as the sliding members 6 and 17 of the first and second embodiments, and has a central part, for example, A portion thereof is cut and bent as shown in the figure to form a locking portion 26C. Note that this locking portion 26C may be provided separately. The entire sliding member 26 formed in this manner is elastically deformable.

27 is a cover member of the joint 21,
It is made by extrusion molding a light alloy material such as aluminum, and has a web 27A with a substantially mountain-shaped cross section as shown in the figure, and an engaging piece 27B that engages with a cushion member 28 at both ends thereof. formed,
Furthermore, a groove portion 27C having a substantially sawtooth-shaped locking surface on the inner surface is formed along the longitudinal direction at approximately the center of the web 27A.

Reference numeral 28 denotes a cushion member, which is made of synthetic resin, synthetic rubber, or the like and is a long member, and is attached in a filling manner between the lid member 25 and the cover member 27 as shown in the figure. The main body is a bellows-shaped filling part 28A that is expandable and retractable, and a fitting part 28B that fits into the groove 25D of the cover member 25 is formed at one end thereof, and a fitting part 28B that fits into the groove 25D of the cover member 25 is formed at the other end. Engagement portion 28 that engages with engagement piece 27B
C is formed respectively.

In the thus formed joint 21, the sliding member 26 is slidably held between the fixing members 22 and 23, as shown in the figure, and above the joint 21 is a cover member 27 whose groove 27C is connected to the sliding member 26. Locking part 2
6C and are connected in a male-female manner, and
It is attached in a filling manner between the cover member 27 and the fixing members 22 and 23, and in particular, the groove portion 2 of the cover member 27
A pulling force acts on the sliding member 26 toward the cover member 27 depending on the coupling position of the locking portion 26C of the sliding member 26 and the sliding member 26. Therefore, this third embodiment also provides the same effects as the first embodiment.

Next, FIG. 4 shows a fourth embodiment of the present invention, in which this joint 51 is attached to the roof of a building, that is, between the parapets W2 and W2', so as to shield a gap T2 between the parapets W2 and W2'. It is composed of fixed members 52 and 53, a sliding member 56, and a cover member 57, which are arranged oppositely along the upper surface of W2'.
This joint 51 differs from the first embodiment in that the lid member 5 is different, and the other members are formed in substantially the same shape. That is, this lid member 55 also serves as a draining member, and in its cross section, 55A is a web, which is formed to be inclined downward toward the inside of the roof as shown in the figure, and shields the upper surface side of the parapets W2 and W2'. A water section 55B is provided vertically at the inner end in the drawing, and a protrusion 55C is formed at the lower end. In addition, water section 55B
A substantially saw-toothed locking surface 55D is formed at the lower end of the locking surface 55D. Further, a projecting piece 55E for guiding and holding the sliding member 56 is vertically provided at the outer end of the web 55A, and a dovetail groove 55F into which the airtight member 75 is fitted is formed along the longitudinal direction on the upper surface side. . Furthermore, a mounting piece 55G is formed in a part of the web 55A to be inserted into and locked in the groove 54D of the mounting member 54. Note that this water section 55B is formed to be slightly elastically deformable.

Reference numeral 58 denotes a locking member which is attached to the inner upper surface of the parapets W2, W2' and locks the water section 55 of the lid member 55.
B, and in its cross section, 58A
is a mounting piece provided horizontally, a locking piece 58B is formed at a predetermined inclination angle at the inner end, and a receiving piece 58C is provided at the upper end of this locking piece 58B, so that the locking member 58 has a cross section. It is formed into an approximately F shape.

The locking member 58 formed in this manner is fixed to the parapets W2, W2', and the sliding member 56 is slidably attached to the mounting member 54 via the mounting piece 55G of the lid member 55. The water segment 55B is elastically secured to the locking member 58.
Therefore, this fourth embodiment also has the same effect as the first embodiment, and the water cutter 55
B can improve the watertightness of the parapets W2 and W2'. Note that the locking member 58 described above may be formed integrally with the mounting member 54.

Next, FIG. 5 shows a fifth embodiment of the present invention, in which a joint 61 is provided to shield the walls W3, W3' of adjacent buildings, that is, the gap T3 at the inside corner. Fixing members 62, 63 and sliding member 6 are provided oppositely along the outer surfaces of walls W3, W3'.
6 and a cover member 67, and since this joint 61 is attached to the inside corner, the sliding member 66 and the cover member 67 are different, and the fixed member 6
2 and 63, substantially the same members as in the first embodiment are used.

Reference numeral 66 denotes a sliding member of the joint 61, which is made of a flexible spring steel material as in the first embodiment, and the webs 66A and 66B are formed in an L-shape (not shown) along the inside corner. , an engagement piece 66C is formed at each end thereof. Further, at the corner portions of the webs 66A, 66B, the webs 66A, 66
A locking portion 66D for connecting the cover member 67 is formed by cutting and raising B so as to face each other. The entire sliding member 66 formed in this manner is elastically deformable.

Reference numeral 67 is a cover member made by extrusion molding of a light alloy material such as aluminum, and in its cross section, 67A and 67B are webs, and the cross section along the inner corner of the wall bodies W3 and W3' shown is omitted. It is formed into an L-shape and has an airtight member 75 at its end.
A dovetail groove 67C into which the holder is fitted is formed respectively. Further, a mounting piece 67D having an arrowhead-shaped locking protrusion 67E at the tip that engages with the locking portion 66D of the sliding member 66 is formed at the corners of the webs 67A, 67B.

The sliding member 66 formed in this manner is slidably sandwiched between the fixed members 62 and 63, and a cover member 67 is connected to the sliding member 66 with its attachment piece 67D on the outdoor side. There is. Therefore, in this fifth embodiment as well, even if the building undergoes relative movement in the direction of the arrow shown in the figure, the same effects as in the first embodiment can be achieved.

Furthermore, in each of the embodiments, the mounting member and the lid member are latched and assembled using a mounting piece, but they may be fastened together using screws.

Now, the present invention provides a fixing member consisting of two members, a mounting member having a generally groove-shaped cross section and a lid member for closing the mounting member, facing each other along the longitudinal direction of the frames of adjacent buildings. A cover member is provided on the outside of both fixing members, spanning both fixing members and shielding the gap between the building frames, and furthermore, the mounting member and the cover member are slidable between the fixing members. The outer cover member and the inner sliding member are connected to each other by being pulled toward the building side by an appropriate connecting means, with a sliding member that is sandwiched between and elastically deformable in its entirety interposed therebetween; In addition, by having a structure in which the cover member and the sliding member are slidably interposed inside and outside the lid member in the direction of expansion and contraction of the gap between the frames, it is possible to prevent expansion and contraction fluctuations due to changes in the outside air of adjacent buildings. In this way, gaps between buildings can be shielded in a stable state, and the watertightness thereof can be improved.Moreover, the entire sliding member can be elastically deformed, and can be appropriately connected to the cover member. Since they are connected by means, when relative movement occurs between the buildings, it has two functions: slidability with respect to the fixed member and elastic retraction of the cover member, and has good responsiveness to the building. Since the application of external force to the cover member is significantly reduced and its usability can be increased, its contribution as an expansion joint is extremely large.

[Brief explanation of drawings]

FIG. 1 is a horizontal sectional view showing the first embodiment of the present invention, FIG. 2 is a horizontal sectional view showing the second embodiment, FIG. 3 is a vertical sectional view showing the third embodiment, and FIG. 4 is a horizontal sectional view showing the second embodiment. Similarly, FIG. 5 is a vertical sectional view showing the fourth embodiment, and FIG. 5 is a horizontal sectional view showing the fifth embodiment. 1, 11, 21, 51, 61... Expansion joint, 2, 3, 12, 13, 22, 2
3, 52, 53, 62, 63...fixing member, 4,
14, 24, 54, 64...Mounting member, 5, 1
5, 25, 55, 65...Lid member, 6, 16, 2
6, 56, 66...Sliding member, 7, 17, 27,
57, 67...Cover member, W, W', W1, W
1', W2, W2', W3, W3'...Structure, T,
T1, T2, T3... gaps.

Claims (1)

[Claims] 1. A fixing member consisting of two members, a mounting member with a generally groove-shaped cross section and a lid member for closing the mounting member, is installed oppositely along the longitudinal direction of the frame of the adjacent building, and both fixing members are A cover member is provided on the outside, spanning both fixing members and shielding the gap between the building frames, and is slidably held between the fixing members by the mounting member and the lid member,
and a sliding member whose entirety is elastically deformable is interposed, and the outer cover member and the inner sliding member are connected to each other by being pulled toward the building side by an appropriate connecting means, and the cover member and The expansion joint is configured such that a sliding member is slidably interposed inside and outside the lid member in an expansion/contraction direction of the gap between the skeletons.