JP2013014922A - Expansion joint device for wall - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an expansion joint device for walls that has achieved cost reduction thereof through reduction of the number of used parts and can keep clearance in a filled state by allowing deformation between building skeletons.SOLUTION: An expansion joint device for walls is installed on two adjacent building skeletons 2a, 2b with a clearance 3 extending in a vertical direction therebetween. The expansion joint device for walls comprises: a plurality of first holder members 5 that are held by the one building skeleton 2a and disposed in parallel with intervals inserted therebetween in a vertical direction; a plurality of second holder members 6 that are held by the other building skeleton 2b and fit in the first holder members 5 as movable in the longitudinal direction of the first holder members 5; a cover body fixed on the first holder members 5; and spring members 8,9 each having one end portion engaged with the first holder member 5 with movement thereof in the longitudinal direction blocked and rotation thereof allowed, and the other end portion engaged with one of the building skeletons with rotation thereof allowed, energizing the first holder member 5 toward the one building skeleton 2a.

Description

  The present invention is installed between building walls facing each other through a gap in the horizontal direction between the inner wall and the inner wall of two adjacent buildings or between the outer wall and the outer wall, and closes the gap and causes an earthquake, etc. The present invention relates to a wall expansion joint device capable of allowing relative displacement between buildings.

  A typical prior art wall expansion joint device is shown, for example, in US Pat. In this prior art, a plurality of holder members are arranged at regular intervals in the vertical direction along the gap between the opposing building frames, and a cover body that covers the gap is provided on the holder. In this wall expansion joint device, the holder member is provided with a plate-like slide member that is slidable along the longitudinal direction thereof, and the slide member is a base member provided on the building frame via a connecting member. To be pivotally connected to each other. The slide member, the connecting member, and the base member are arranged in a Z-shape, and the slide member and the connecting member are spring-biased by a spring in a direction in which the cover body approaches the gap. This achieves the effect of following a large relative displacement between the buildings without increasing the size of the mechanism itself.

Japanese Patent No. 413538

  In the prior art, in order to allow displacement between the building frames without increasing the size of the mechanism itself, the slide member is provided on the holder member so as to be slidable in the longitudinal direction of the holder member, and the slide member is provided on the building frame. Since the structure is movably connected to the base member via a connecting member, an increase in the size of the structure can be avoided, but the number of parts is large, and the installation work requires labor, and the manufacturing cost and the installation cost Has the problem of becoming expensive.

  An object of the present invention is to provide a wall expansion joint device capable of reducing the number of parts and reducing the cost, permitting displacement between building frames and maintaining a state in which a gap is closed.

The present invention is a wall expansion joint device provided in two adjacent building frames with a gap extending in the vertical direction,
A plurality of first holder members held in one building frame and arranged in parallel in the up-down direction;
A plurality of second holder members that are held by the other building housing and are fitted to the first holder member so as to be movable in the longitudinal direction of the first holder member;
A cover body fixed to the first holder member;
One end of the first holder member that is prevented from moving in the longitudinal direction and is allowed to rotate, and the other end that is locked to one building housing while being allowed to rotate. And a spring means for biasing the first holder member in a direction approaching one of the building housings.

  According to the present invention, the spring means includes a first spring member that biases the first holder member in a direction close to the one building housing, and the second holder member close to the other building housing. And a second spring member biased in the direction.

Moreover, this invention contains the spring member which spring-biases the said 2nd holder member in the direction which adjoins the said other building skeleton,
The first holder member is connected to the one building frame by hinge means so as to be angularly displaceable about an axis parallel to the vertical direction.

  According to the present invention, since the first and second holder members are held by each building frame by the spring means, each building frame reduces the number of earthquakes or parts to reduce the cost, and the displacement between the building frames is reduced. It can be allowed to be maintained in a closed state.

1 is a horizontal sectional view showing a wall expansion joint device 1 according to an embodiment of the present invention. FIG. 4 is a plan view side view of the first holder assembly 11. It is the side view which looked at the 1st holder assembly 11 from the left side of FIG. It is the side view which looked at the 1st holder assembly 11 from the left side of FIG. 4 is a plan view of a second holder assembly 12. FIG. 5 is a front view of a second holder assembly 12. FIG. It is the side view which looked at the 2nd holder assembly 12 from the right side of FIG. FIG. 3 is a plan view showing a state in which a second holder assembly 12 is attached to the first holder assembly 11. It is sectional drawing seen from the cut surface line IX-IX of FIG. 3 is a front view of a first spring member 8. FIG. 3 is a plan view of a first spring member 8. FIG. 5 is a front view of a second spring member 9. FIG. 4 is a plan view of a second spring member 9. FIG. It is sectional drawing which shows operation | movement of the expansion joint apparatus 1 for walls. It is a horizontal sectional view showing wall expansion joint device 1A of other embodiments of the present invention. 4 is a plan view of a first holder assembly 51. FIG. 4 is a front view of a first holder assembly 51. FIG. 4 is a perspective view of a bracket 52 of the first holder assembly 51. FIG. 4 is a plan view of a second holder assembly 70. FIG. 5 is a front view of a second holder assembly 70. FIG. It is the side view which looked at the 2nd holder assembly 70 from the right side of FIG. FIG. 6 is a plan view showing a state in which a second holder assembly 70 is mounted on the first holder assembly 51. It is sectional drawing seen from the cut surface line XXII-XXII of FIG. It is a front view of the spring member 9a. It is a top view of the spring member 9a. It is sectional drawing which shows operation | movement of the expansion joint apparatus 1A for walls, FIG.26 (1) shows the state when one building housing 2a is displaced relatively ahead with respect to the other building housing 2b, and FIG. ) Shows a state when the other building housing 2b is relatively displaced forward with respect to the one building housing 2a.

  FIG. 1 is a horizontal sectional view showing a wall expansion joint device 1 according to an embodiment of the present invention. Between the two adjacent building frames 2a and 2b, there is a gap 3 as a joint space, and in order to prevent intrusion of rainwater and the like from the outdoor 4 into the gap 3, it is caused by an earthquake of each building frame 2a and 2b There is provided a wall expansion joint device 1 that maintains a state in which the gap 3 is closed while allowing relative displacement. Here, the relative displacement of each building frame 2a, 2b refers to a direction in which each building frame 2a, 2b approaches / separates from each other in the horizontal plane, a longitudinal direction perpendicular to the approach / separation direction, and a vertical up / down direction. Actually, the displacement in the three directions of the approach / separation direction, the front-rear direction, and the up-down direction is a combined displacement.

  The wall expansion joint device 1 of the present embodiment is a wall expansion joint device provided in two building housings 2a and 2b adjacent to each other with a gap 3 extending in the vertical direction perpendicular to the paper surface of FIG. A plurality of first holder members 5 which are held in the building housing 2a and arranged in parallel in the up-down direction and the other building housing 2b, and the first holder member 5 has the first holder A plurality of second holder members 6 that are movably fitted in the longitudinal direction of the member 5, a cover body 7 fixed to the first holder member 5, and the first holder member 5 close to the one building housing 2a A first spring member 8 that biases the spring in the direction to be moved, and a second spring member 9 that biases the second holder member 6 in a direction adjacent to the other building housing 2b.

  Each building frame 2a, 2b is a concrete structure of a building, and has substantially vertical facing wall portions 13a, 13b facing each other in the horizontal direction and outdoor wall portions 14a, 14b facing the outdoors 4. Edge members 15a and 15b are fixed to the outdoor wall portions 14a and 14b by anchor bodies 16a and 16b, respectively. Each of the edge members 15a and 15b is made of steel or stainless steel, and is a short material provided at the same interval in the vertical direction as the first and second holder members 5 and 6 described above. Such an interval in the vertical direction is selected to be, for example, 600 mm, but is not limited thereto, and the distance C in the direction perpendicular to the wall surface between the opposing wall portions 13a and 13b (left and right in FIG. 1) and the cover body. The width W is appropriately set according to the width W of 7.

  Each edge material 15a, 15b presses and fixes both side portions of the belt-shaped water stop auxiliary sheet 17 on each outdoor wall portion 14a, 14b by the tightening force of each anchor body 16a, 16b. In this state, the water-stop auxiliary sheet 17 is accommodated in the gap 3 in a state of being curved in a U-shape on the gap 3 side with respect to the first and second holder members 5, 6 and the cover body 7. 7 prevents rainwater or the like that could not be prevented by 7 from entering the gap 3. Such a water stop auxiliary sheet 17 is made of a highly weatherable material having flexibility and elasticity, for example, synthetic rubber such as chloroprene rubber.

  The cover body 7 is made of an aluminum alloy plate material arranged with the vertical direction as a longitudinal direction. The cover body 7 has L-shaped bent portions 21a and 21b integrally connected to both sides of the flat plate-like portion 20 in a cross section perpendicular to the longitudinal direction, and each bent portion 21a and 21b includes The hollow packings 22a and 22b are respectively attached. Each packing 22a, 22b elastically abuts against each wall surface of the outdoor wall portions 14a, 14b from the outdoor 4 side, and liquid-tightly blocks between the cover body 7 and each wall surface of each outdoor wall portion 14a, 14b. In addition, intrusion of wind and rain from the outdoor 4 into the gap 3 is prevented. The cover body 7 is a standard material having a length in the longitudinal direction of 3 m, for example.

  2 is a plan view of the first holder assembly 11, FIG. 3 is a front view of the first holder assembly 11, and FIG. 4 is a side view of the first holder assembly 11 as viewed from the left side of FIG. is there. In FIG. 4, the first spring member 8 is omitted for easy illustration. The first holder assembly 11 includes the first holder member 5, the first spring member 8, and the edge member 15 a described above. The first holder assembly 11 is carried into the site in a state where it is assembled in a factory or the like, and the outdoor wall of one building housing 2 a It is attached to the wall surface of the part 14a.

  5 is a plan view of the second holder assembly 12, FIG. 6 is a front view of the second holder assembly 12, and FIG. 7 is a side view of the second holder assembly 12 as viewed from the right side of FIG. is there. In FIG. 7, the second spring member 9 is omitted for easy illustration. The second holder assembly 12 includes the second holder member 6, the first spring member 9, and the edge member 15b described above, and is brought into the field in an assembled state in a factory or the like, and the outdoor wall of the other building housing 2b. It is attached to the wall surface of the part 14b.

  FIG. 8 is a plan view showing a state in which the second holder assembly 12 is mounted on the first holder assembly 11, and FIG. 9 is a cross-sectional view taken along the section line IX-IX in FIG. In FIG. 9, the second spring member 9 is omitted for ease of illustration. The first holder assembly 11 and the second holder assembly 12 are fitted in a state in which the second holder member 6 is inserted into the first holder member 5, and the first holder member 5 and the second holder member 6 are , Mounted so as to be movable in the longitudinal direction.

  FIG. 10 is a front view of the first spring member 8, and FIG. 11 is a plan view of the first spring member 8. The first spring member 8 is connected to the first holder member 5 at one end portions 31 and 32 locked in a state in which the movement in the longitudinal direction is prevented and the rotation is allowed, and one building housing 2a, It has the other end part 33 latched in the state in which rotation was permitted by the edge material 15a. Such a first spring member 8 is realized by a torsion coil spring.

  FIG. 12 is a front view of the second spring member 9, and FIG. 13 is a plan view of the second spring member 9. The second spring member 9 is connected to the second holder member 6 with one end portions 34 and 35 locked in a state in which the movement in the longitudinal direction is prevented and the rotation is allowed, and one building housing 2a, And the other end portion 36 that is locked in a state where the rotation is allowed. Such a spring member 9a is realized by a torsion coil spring.

  FIG. 14 is a cross-sectional view showing the operation of the wall expansion joint device 1. In the wall expansion joint device 1 described above, when one building housing 2a is displaced forward (upward in FIG. 14) relative to the other building housing 2b due to an earthquake, the first holder member 5 is moved by the first spring member 8. The first holder member 5 and the second holder member 6 extend in the longitudinal direction while being held by one building housing 2a and the second holder member 6 being held by the second spring member 9 on the other building housing 2b. The cover body 7 can be maintained in a state of closing the gap 3 while being inclined together with the first and second holder members 5 and 6. At this time, one packing 22a is separated from the wall surface of the outdoor wall portion 14a of one building housing 2a, while the other packing 22b elastically contacts the wall surface of the outdoor wall portion 14b of the other building housing 2b, Water tightness is achieved. As a result, rainwater entering from the outdoor 4 toward the gap 3 is blocked by the cover body 7, and the rainwater enters the gap 3 guided from the cover body 7 to the outdoor wall portion 14b of the other building housing 2b. Can be blocked by the other packing 22b.

  In addition, as shown in FIG. 26 (2), even if the other building housing 2b is relatively displaced forward with respect to the one building housing 2a, the other packing 22b is the outdoor wall of the other building housing 2b. Although separated from the wall surface of the portion 14b, one packing 22a elastically abuts against the wall surface of the outdoor wall portion 14a of the one building housing 2a, and similarly can prevent rainwater from entering the gap 3. .

  As described above, according to the wall expansion joint device 1 of the present embodiment, the first and second holder members 5 and 6 are connected to the building housings 2a, 2 by the first and second spring members 8 and 9, which are spring means. 2b, each building housing 2a, 2b reduces the cost by reducing the number of earthquakes or parts, and allows the displacement between the building housings 2a, 2b to be allowed to remain closed. Can do.

  FIG. 15 is a horizontal sectional view showing a wall expansion joint device 1A according to another embodiment of the present invention. Note that portions corresponding to those of the above-described embodiment are denoted by the same reference numerals, and redundant description is omitted. In the present embodiment, the wall surfaces of the opposing wall portions 13a and 13b facing each other through the gap 3 are substantially parallel, and the wall surfaces of the outdoor wall portions 14a and 14b are provided between the building housings 2a and 2b that are substantially vertical. The wall expansion joint device 1A will be described.

  The wall expansion joint device 1A of the present embodiment is a wall expansion joint device 1A provided in two adjacent building housings 2a and 2b with a gap 3 extending in the vertical direction, and is held by one building housing 2a. The plurality of first holder members 5 that are arranged in parallel in the up-down direction and the other building housing 2b are moved to the first holder member 5 in the longitudinal direction of the first holder member 5. A plurality of second holder members 6 that can be fitted together, a cover body 7 fixed to the first holder member 5, and the second holder member 6 are spring-biased in a direction close to the other building housing 2b. A spring member 9a as a spring means and a hinge means 30 for connecting the first holder member 5 to the one building housing 2a so as to be angularly displaceable about an axis parallel to the vertical direction.

  16 is a plan view of the first holder assembly 51, FIG. 17 is a front view of the first holder assembly 51, and FIG. 18 is a perspective view of the bracket 52 of the first holder assembly 51. The first holder member 5 is provided with hinge means 30, and the first holder member 5 and the hinge means 30 constitute a first holder assembly 51. The hinge means 30 includes a bolt 53 inserted into one end of the first holder member 5, a nut 54 screwed into the bolt 53, and a bracket 52 through which the bolt 53 is inserted.

  The bracket 52 includes a longitudinal plate-like base portion 55, a pair of attachment portions 57 and 58 that protrude from both longitudinal ends of the base portion 55 and have anchor holes 56 a and 56 b through which the anchor body 16 a is inserted, and the longitudinal length of the base portion 55. A pair of upright portions 59, 60 that are perpendicular to both ends in the direction, and a pair of projecting portions 63, 64 that protrude from the upright portions 59, 60 and that have bolt holes 61, 62 through which the bolts 53 are inserted. . Such a bracket 52 is made of a punched material of a stainless steel plate.

  19 is a plan view of the second holder assembly 70, FIG. 20 is a front view of the second holder assembly 70, and FIG. 21 is a side view of the second holder assembly 70 viewed from the right side of FIG. is there. In FIG. 21, the spring member 9 a is omitted for easy illustration. The spring member 9a and the edge member 15b are attached to one end of the second holder member 6, and the second holder assembly 70 includes the second holder member 6, the spring member 9a, and the edge member 15b. Configure.

  22 is a plan view showing a state in which the second holder assembly 70 is attached to the first holder assembly 51, and FIG. 23 is a cross-sectional view taken along the section line XXIII-XXIII in FIG. The first holder assembly 50 and the second holder assembly 70 described above are carried into the site while being attached to each other, and are attached to the building housings 2a and 2b at intervals in the vertical direction.

  FIG. 24 is a front view of the spring member 9a, and FIG. 25 is a plan view of the spring member 9a. As described above, the spring member 9a is realized by a torsion coil spring, and is connected to the second holder member 6 with one end 34 that is prevented from moving in the longitudinal direction and is allowed to rotate. 35 and the other end 36 that is locked to one building housing in a state where rotation is permitted.

  FIG. 26 is a cross-sectional view showing the operation of the wall expansion joint device 1A, and FIG. 26 (1) shows a state when one building housing 2a is relatively displaced forward with respect to the other building housing 2b. FIG. 26 (2) shows a state where the other building housing 2b is relatively displaced forward with respect to the one building housing 2a. In the wall expansion joint device 1A described above, when one building housing 2a is displaced forward (upward in FIG. 26) relative to the other building housing 2b due to an earthquake, as shown in FIG. The holder member 5 is angularly displaced about the axis of the bolt 53 by the hinge means 30 and held by one building housing 2a, and the second holder member 6 is held by the other building housing 2b by the spring member 9a. The first holder member 5 and the second holder member 6 move in a direction extending in the longitudinal direction, and the cover body 7 is in a state of closing the gap 3 while being inclined together with the first and second holder members 5 and 6. Can be maintained. At this time, one packing 22a is separated from the wall surface of the outdoor wall portion 14a of one building housing 2a, while the other packing 22b elastically contacts the wall surface of the outdoor wall portion 14b of the other building housing 2b, Water tightness is achieved. As a result, rainwater entering from the outdoor 4 toward the gap 3 is blocked by the cover body 7, and the rainwater enters the gap 3 guided from the cover body 7 to the outdoor wall portion 14b of the other building housing 2b. Can be blocked by the other packing 22b.

  Even if the other building housing 2b is relatively displaced forward with respect to one building housing 2a, the other packing 22b is separated from the wall surface of the outdoor wall portion 14b of the other building housing 2b. The packing 22a elastically abuts against the wall surface of the outdoor wall portion 14a of one building housing 2a, and similarly can prevent rainwater from entering the gap 3.

  Also in the wall expansion joint device 1A of the present embodiment configured as described above, the first holder member 5 is connected to one building frame 2a by the hinge means 30 in the same manner as the wall expansion joint device 1 of the above-described embodiment. The second holder member 6 is held by the other building housing 2b by the spring member 9a so that the number of parts can be reduced and the cost can be reduced, and the displacement between the building housings 2a and 2b can be reduced. The gap 3 can be allowed to be maintained and closed.

DESCRIPTION OF SYMBOLS 1,1A Wall expansion joint apparatus 2a, 2b Building frame 3 Space | gap 4 Outdoor 5 1st holder member 6 2nd holder member 7 Cover body 8 1st spring member 9 2nd spring member 9a Spring member 13a, 13b Opposite wall part 14a , 14b Outdoor wall portion 15a, 15b Edge material 16a, 16b Anchor body 17 Water stop auxiliary sheet 20 Plate-like portion 21a, 21b Bending portion 22a, 22b Packing 30 Hinge means 51 First holder assembly 52 Bracket 70 Second holder assembly

Claims (3)

It is a wall expansion joint device provided in two building buildings adjacent to each other with a gap extending in the vertical direction,
A plurality of first holder members held in one building frame and arranged in parallel in the up-down direction;
A plurality of second holder members that are held by the other building housing and are fitted to the first holder member so as to be movable in the longitudinal direction of the first holder member;
A cover body fixed to the first holder member;
One end of the first holder member that is prevented from moving in the longitudinal direction and is allowed to rotate, and the other end that is locked to one building housing while being allowed to rotate. And a spring means for spring-biasing the first holder member in a direction approaching one of the building housings.   The spring means spring-biases the first holder member in a direction close to the one building housing, and spring biases the second holder member in a direction approaching the other building housing. The wall expansion joint device according to claim 1, further comprising: a second spring member. The spring means includes a spring member that biases the second holder member in a direction close to the other building housing,
2. The expansion joint device for walls according to claim 1, wherein the first holder member is connected to the one building frame by hinge means so as to be angularly displaceable about an axis parallel to the vertical direction.