JP4824957B2 - Floor expansion joint device - Google Patents

Description

  The present invention relates to an expansion joint device for a floor that allows relative displacement between housings of two buildings adjacent to each other and can maintain a state in which a gap between the housings is closed.

  FIG. 6 is a view for explaining the configuration of a conventional expansion joint device 1 for floor, FIG. 6 (1) is a vertical sectional view of the first expansion structure 6, and FIG. It is the top view which looked at the expansion joint apparatus 1 for floors from upper direction, FIG.6 (3) is a vertical sectional view of the 2nd expansion-contraction structure 7. FIG. 6 (1) shows a cross section viewed from the cutting plane line AA in FIG. 6 (2), and FIG. 6 (3) shows a cross section viewed from the cutting plane line BB in FIG. 6 (2). Show. A gap 3 as a joint exists between the two housings 2a and 2b of the two buildings adjacent to each other. The gap 3 is closed to ensure the continuity of the floor used as a passage and the like. In order to prevent an object from falling into the floor, a floor expansion joint device 1 is installed.

  The floor expansion joint device 1 has a first section C1 composed of floor portions 4a and 4b in which the installation sections are substantially horizontal on the structures 2a and 2b on the structure of each building, and one of the structures 2a has columns and walls. It is the wall part 5a containing, and the other housing 2a side is installed over the 2nd area C2 which is the floor part 5b which followed the said floor part 4b. Such a floor expansion joint device 1 includes a first expansion structure 6 that closes the gap 3 between the floor 4a of one casing 2a and the floor 4b of the other casing 2b, and a wall of the one casing 2a. It is comprised by two structures of the 2nd expansion-contraction structure 7 which block | closes the space | gap 3 between the part 5a and the floor part 5b of the other housing 2b.

  The first telescopic structure 6 is fixed to the floors 4a and 4b of the housings 2a and 2b by a plurality of anchor bodies 9a and 9b on the substantially horizontal mounting surfaces 8a and 8b, respectively. It has a pair of edge materials 11a and 11b which hold | maintain a part so that a displacement is possible. Both edge portions in the width direction of the flexible water-stop sheet 12 are locked to each of the edge members 11a and 11b, and are attached in a state of being bent in a substantially U shape. The second telescopic structure 7 is substantially horizontal to one edge member 15a fixed by the anchor body 14a on the substantially vertical mounting surface 13a to the wall 5a of one casing 2a and the floor 5b of the other casing 2b. And the other edge member 15b fixed by the anchor body 14b on the mounting surface 13b. Both edge portions in the width direction of the cover body 16 are displaceably held by the respective edge members 15a and 15b, and both end portions in the width direction of the flexible water-proof sheet 17 are locked and curved in a substantially U shape. It is installed in the state that I did.

  In the first telescopic structure 6, the edge member 11 a fixed to one housing 2 a includes a base portion 20 a having a support piece 19 a protruding from the facing portion 18 a facing the other housing 2 b, and a screw 20 a on the base portion 20 a from above. And a decorative cover 22a to be fixed. The edge member 11b fixed to the other housing 2b includes a base portion 20b having a support piece 19b protruding from the facing portion 18b facing the one housing 2a, and a decorative cover 22b fixed to the base portion 20b from above by screws 21b. It is comprised similarly to the edge material 11a fixed to said one housing 2a. Both ends in the width direction of the cover body 10 are elastically pressed from above by the free ends of the decorative covers 22a and 22b while being supported by the support pieces 19a and 19b of the respective edge members 11a and 11b. In the initial state of installation shown in 6 (1), the central portion in the width direction is arranged at the approximate center between the opposing portions 18a and 18b, and allows relative displacement of the respective housings 2a and 2b due to an earthquake or the like. It is comprised so that can be maintained in the state closed by the cover body 10.

In the second telescopic structure 7, the edge member 15 a fixed to one housing 2 a has a base portion 25 a having a support piece 23 a and a sandwiching piece 24 protruding from a substantially vertical mounting surface 13 a facing the other housing 2 b. And a decorative cover 27a having an insertion piece 26 sandwiched by the sandwiching piece 24 of the base portion 25a. The edge member 15b fixed to the other housing 2b includes a base portion 25b having a support piece 23b that supports the other end portion in the width direction of the cover body 16, and a decorative cover 27b fixed to the base portion 25b by screws 28, The edge member 11b provided on the other casing 2b of the first stretchable structure 6 is integrally formed continuously in the longitudinal direction. One end of the cover body 16 in the width direction is supported in a state of being elastically pressed by the free end of the decorative cover 27a on the support piece 23a of one edge member 15a. The other end in the width direction of the cover body 16 is supported in a state of being elastically pressed by the free end of the decorative cover 27b on the support piece 23b of the other edge member 15b.
Such a conventional technique is described in Patent Document 1, for example.

Japanese Utility Model Publication No. 62-17521

In the prior art, in the first stretchable structure 6, when relative displacement occurs in the direction in which the housings 2a and 2b are close to each other due to an earthquake or the like, both end portions in the width direction of the cover body 10 are the edge members 11a. 11b, the sum of the distances a1 and b1 until they abut against the mutually facing inner surfaces 30a and 30b is the proximity displacement absorption amount L1 _IN (= a1 + b1), and relative to the directions in which the housings 2a and 2b are separated When the displacement occurs, both end portions in the width direction of the cover body 10 are clamped by the support pieces 19a and 19b and the decorative covers 22a and 22b from the state shown in FIG. 6 (1) before the displacement in the separating direction occurs. The sum of the distances a11 and b11 until the state is reached is set as the separation displacement absorption amount L1 _OUT (= a11 + b11).

In the second stretchable structure 7, when relative displacements occur in the directions in which the housings 2a and 2b are close to each other, the inner surfaces of the cover body 16 facing each other in the edge members 15a and 15b in the width direction. When the sum of the distances a2 and b2 until they come into contact with 31a and 31b is the proximity displacement absorption amount L2 _IN (= a2 + b2), and each housing 2a and 2b is relatively displaced in the direction away from each other, the cover body 16 Distance a12 from the state shown in FIG. 6 (3) before the displacement in the width direction ends to the state sandwiched between the support pieces 23a and 23b and the decorative covers 27a and 27b. , B12 is set as a displacement displacement absorption amount L2 _OUT (= a12 + b12).

When comparing the proximity displacement absorption L2in proximity displacement absorption L1 _IN and second telescoping structure 7 of the first telescopic structure 6, each edge member 11b provided on the other skeleton 2b, 15b are continuous with the same structure The displacement absorption amounts b2 and b12 by these edge members 11b and 15b are the same (b2 = b12) because of the structure, but the edge members 11a and 15a provided on one housing 2a have different structures and are not mutually compatible. Since they are continuous, the displacement absorption amounts a2 and a12 by the edge material 15a of the wall portion 5a are smaller than the displacement absorption amounts b2 and b12 by the edge material 15b of the floor portion 5b (a2 <b2, a12 <b12). The proximity displacement absorption amounts L1 _IN and L2 _IN of the elastic structure 6 and the second elastic structure 7 are different, and the cover bodies 10 and 16 are continuous over the first elastic structure 6 and the second elastic structure 7. Integrated structure I can't. For this reason, when the housings 2a and 2b are relatively displaced in the vertical direction of FIG. 6 (2), the cover body 10 of the first elastic structure 6 and the cover body 16 of the second elastic structure 7 are separated. Thus, there is a problem that an opening is generated between the cover bodies 10 and 16, or the cover bodies 10 and 16 are close to each other and interfere with each other.

  Further, the support piece 19a of the edge member 11a provided on the floor 4a of the one housing 2a and the free end part of the decorative cover 22a are the free end of the support piece 23a of the edge member 15a provided on the wall 5a and the decorative cover 27a. Since the housings 2a, 2b are displaced from each other by a distance ΔL in the horizontal direction (the left-right direction in FIGS. 6 (1) to 6 (3)) in which they are close to / separated from each other, the cover bodies 10, 16 Is strongly recognized to be discontinuous, and there is a problem that the aesthetics deteriorate.

  The objective of this invention is providing the expansion joint apparatus for floors which can prevent generation | occurrence | production of the opening by separation of a cover body, without deteriorating the beauty | look.

In the present invention, one of the two buildings adjacent to each other in the second horizontal direction perpendicular to the first horizontal direction with a gap extending in the first horizontal direction is adjacent to the second horizontal direction. A floor portion and a wall portion are provided facing the gap, and a floor portion facing the floor portion and the wall portion of the one casing in the first horizontal direction is provided facing the gap. And follows the relative displacement between each of the casings between the floor of the one casing and the floor of the other casing and between the wall of the one casing and the floor of the other casing. In the expansion joint device for floors that maintains the state where the gap is closed,
A first support piece fixed to a wall portion of the one housing on a first vertical mounting surface of a facing portion close to the gap and projecting toward the other housing from the first mounting surface. Rim material,
A second edge having a second support piece fixed to the floor portion of the one casing on a horizontal second mounting surface of an opposing portion close to the gap and continuous in the first horizontal direction with the first support piece. Material,
Fixed to the floor of the other housing on the vertical third mounting surface of the facing portion close to the gap, and parallel to the first and second support pieces with a predetermined interval in the second horizontal direction. A third edge member having a third support piece disposed;
A cover body supported at one end in the width direction by the first and second support pieces and supported at the other end in the width direction so as to be displaceable by the third support piece;
Between the first edge member and the cover body , a hollow packing having flexibility and elasticity is attached ,
The packing has a first side portion arranged in parallel along a first side plate of the first edge member fixed to the first mounting surface;
A second side parallel to the first side;
A substantially U-shaped guide portion for connecting the respective one end portions of the first and second side portions;
An upper wall portion connecting the other end portions of the first and second side portions;
A first lip projecting from one end of the upper wall to the wall of the one housing;
A second lip projecting from the other end of the upper wall,
A floor expansion joint device according to claim Rukoto which have a and the projection projecting outwardly from the connecting portion of the guide portion and the second side.

  According to the present invention, one housing has a floor and a wall, the other housing has a floor, the floor of one housing, the floor of the other housing, and the wall of one housing. And the floor of the other frame are opposed to each other via a gap such as a joint between the buildings, and a floor expansion joint device is provided between these frames.

  A first edge member is fixed to a wall portion of one of the casings on a vertical first mounting surface of a facing portion close to the gap. This 1st edge material has the 1st support piece which protruded in the other housing | casing side rather than the 1st attachment surface. In addition, the second edge member is fixed to the floor portion of one of the housings on the horizontal second mounting surface of the facing portion close to the gap. The second edge member has a first support piece and a second support piece continuous in the first horizontal direction. Further, a third edge member is fixed to the floor of the other casing on the third vertical mounting surface of the facing portion close to the gap. The third edge member is parallel to the first support piece of the first edge member and the second support piece of the second edge member, and is previously in the second horizontal direction with respect to the first and second support pieces. It has the 3rd support piece arrange | positioned in parallel with the predetermined space | interval.

The first and second edge members support the one end of the cover body in the width direction, and the third edge member supports the other end of the cover body in the width direction so that the cover body can be displaced. It can arrange | position continuously in a horizontal direction and generation | occurrence | production of the opening accompanying the relative displacement of each housing can be prevented, without deteriorating aesthetics.
In addition, since a hollow packing is mounted between the first edge member and the cover body, when the relative displacement occurs in the direction in which the housings are close to each other, the first edge member is subjected to the amount of compressive deformation of the packing. As a proximity displacement absorption amount, a relative displacement in the approaching direction between the housings can be allowed.

  Further, the present invention is characterized in that the cover body is formed with an engaging portion that faces the first and second support pieces from one housing side at one end portion in the width direction.

  According to the present invention, by providing an engaging portion at one end portion in the width direction of the cover body, even if each housing is relatively displaced, the engaging portion is one housing on the first and second support pieces. The cover body can be prevented from falling off by engaging from the side. Further, the engagement portion of the cover body engages with the first and second support pieces, thereby preventing the opening of the cover body from being separated from the first edge material or the second edge material.

  Furthermore, the present invention is characterized in that the cover body is held at one end in the width direction by the first and second support pieces so as to be displaceable in the second horizontal direction.

  According to the present invention, one end of the cover body in the width direction is supported so as to be displaceable in the second horizontal direction with respect to the first support piece of the first edge member and the second support piece of the second edge member. A greater relative displacement of each housing with respect to the second horizontal direction can be allowed.

According to the present invention, the first support piece and the second support piece that are continuous in the first horizontal direction support the one end in the width direction of the cover body, and the third support piece that is parallel to the first and second support pieces. Since the other end of the cover body in the width direction is supported by the cover body, the cover body can be continuously arranged in the first horizontal direction, thereby allowing relative displacement of each housing without deteriorating the aesthetic appearance. The generation of openings can be prevented.
In addition, since a hollow packing is mounted between the first edge member and the cover body, when the casings are relatively displaced due to an earthquake or the like, the first edge member is By using the distance corresponding to the amount of compressive deformation as the proximity displacement absorption amount, it is possible to allow relative displacement in the approaching direction between the housings.

  Further, according to the present invention, the engaging portion is provided at one end in the width direction of the cover body, and the cover body is configured to engage with the first and second support pieces. It is possible to prevent the opening due to the shift.

  Furthermore, according to the present invention, the first and second support pieces support the one end in the width direction of the cover body so that the cover body can be displaced in the second horizontal direction. Can be bigger.

  FIG. 1 is a diagram showing a floor expansion joint device 41 according to an embodiment of the present invention, and FIG. 1 (1) is a vertical sectional view showing a configuration of a floor portion 44 of the floor expansion joint device 41. FIG. 1 (2) is a plan view of the floor expansion joint device 41, and FIG. 1 (3) is a vertical sectional view showing the configuration of the wall portion 45 of the floor expansion joint device 41. 1 (1) shows a cross section viewed from the section line DD in FIG. 1 (2), and FIG. 1 (3) illustrates a section viewed from the section line EE in FIG. 1 (2). Show.

  One of the housings 43a and 43b of the two buildings adjacent to each other in the second horizontal direction X2 perpendicular to the first horizontal direction X1 with a gap 42 extending in the first horizontal direction X1 is included in the housing 43a. A floor portion 44 and a wall portion 45 are provided adjacent to the second horizontal direction X2 so as to face the gap 42, and the other housing 43b of the housings 43a and 43b is provided on the floor of the one housing 43a. A floor portion 46 is provided on the portion 44 and the wall portion 45 so as to face the gap 42 in the first horizontal direction X1.

  In order to maintain such a state that the gap 42 is closed by following the relative displacement between the respective casings 43a and 43b, the floor expansion joint device 41 of the present embodiment has a floor portion of the one casing 43a. 44 and the floor 46 of the other housing 43b, and between the wall 45 of the one housing 43a and the floor 46 of the other housing 43b.

  The floor expansion joint device 41 is fixed to the wall portion 45 of one housing 43a by an anchor body 49 on the vertical first mounting surface 48 of the facing portion 47 close to the gap 42, and the first mounting surface. The first edge member 51 having the first support piece 50 protruding to the other housing 43b side than 48, and the horizontal second mounting surface of the facing portion 52 close to the gap 42 on the floor 44 of the one housing 43a. A gap 42 is formed in the second edge member 56 having a second support piece 55 which is fixed by an anchor body 54 on 53 and has a first support piece 50 and a second support piece 55 continuous in the first horizontal direction X1, and a floor portion 46 of the other casing 43b. Is fixed by an anchor body 59 on the vertical third mounting surface 58 of the facing portion 57 adjacent to the first and second support pieces 50 and 55 and in parallel with a predetermined interval ΔL in the second horizontal direction X2. It has the 3rd support piece 60 arranged A third edge member 61, a cover body 64 whose one end in the width direction is supported by the first and second support pieces 50, 55 and whose other end in the width direction is movably supported by the third support piece 60; A first water-stop sheet 62 that is attached to the first and third edge members 51, 61 with both ends in the width direction being extended and attached in a first horizontal direction with a substantially U-shaped cross section; 2 and 3rd rim materials 56 and 61, the width direction both ends are latched, and the 2nd water stop sheet | seat 63 extended and mounted | worn with a 1st horizontal direction in the state curved in the substantially U shape is included. .

  FIG. 2 is an enlarged cross-sectional view of the floor expansion joint device 41 as seen from the cutting plane line EE of FIG. 1 (2), and shows an enlarged cross section of FIG. 1 (3). The first edge member 51 includes a base 67 having a substantially U-shaped cross section and a cushion material 69 attached to the first support piece 50. A hollow packing 68 is mounted between the base portion 67 and one end portion in the width direction of the cover body 64.

  The base 67 has a bottom plate 51b connected at a right angle to the lower end of the first side plate 51a fixed to the first mounting surface 48 of the wall 45 by the anchor body 49, and the portion of the bottom plate 51b farthest from the side plate 51a. The second side plate 51c rises upward at a right angle, and an upper edge plate 51d protruding at a right angle toward the first side plate 51a is connected to the upper end portion of the second side plate 51c, and an L-shape is formed on the lower surface of the bottom plate 51b. It consists of a long material in which the fitting pieces 51e are connected. The second support plate 50 is configured by the second side plate 51c and the upper edge plate 51d. Such a base 67 is realized by an extruded shape made of structural steel or aluminum alloy.

  The packing 68 includes a first side portion 68a disposed in parallel along the first side plate 51a of the base portion 67, a second side portion 68b parallel to the first side portion 68a, and first and second side portions 68a. , 68b, a substantially U-shaped guide portion 68c for connecting the one end portions, an upper wall portion 68d for connecting the other end portions of the first and second side portions 68a, 68b, and one end portion of the upper wall portion 68d. Projecting outward from the first lip portion 68e projecting from the wall 45 to the second lip portion 68f projecting from the other end of the upper wall portion 68d, and the connecting portion of the guide portion 68c and the second side portion 68b. 68g.

  Such a packing 68 is realized by a hollow long material made of a soft synthetic resin having flexibility and elasticity, and having high water resistance and weather resistance, for example, silicone rubber, EPDM or chloroprene rubber. 67 and the cover body 64.

  The cover body 64 includes a flat portion 73, a first bent portion 74 that is connected to one end of the flat portion 73 in the width direction at a right angle, a second bent portion 75 that is connected to the free end of the first bent portion 74 at a right angle, And a third bent portion 76 that is bent and connected to the other end in the width direction of the flat portion 73. The first bent portion 74 and the second bent portion 75 are formed at one end in the width direction of the cover body 64, and constitute an engaging portion that faces the first and second support pieces 50 and 55 from the one housing 43a side. To do. Such a cover body 64 is made of an aluminum extruded profile or a stainless steel plate.

  Next, the 3rd edge material 61 is demonstrated first and the 2nd edge material 56 is later mentioned in FIG. The third edge member 61 includes a main body 81, a decorative cover 82, and a liner member 83. The main body 81 is formed with a first side plate 81b that rises perpendicularly upward at one end in the width direction of the flat bottom plate 81a. The first and second water-stop sheets 62, 63 are formed on the back side of the first side plate 81b. An L-shaped fitting piece 81c to which the other end in the width direction is fitted is formed. The first side plate 81b constitutes the third support piece 60 by this portion, and a cushion material 86 similar to the cushion material 69 attached to the first support piece 50 is attached to the upper end portion.

  A second side plate 81d that rises at a right angle toward the upper side is formed at the other end in the width direction of the bottom plate 81a, and a substantially U shape that protrudes toward the first side plate 81b at the upper end of the second side plate 81d. A screw receiving portion 81e and a parting piece 81f that protrudes on the opposite side (right side in FIG. 2) from the first side plate 81b and rises upward are formed.

  On the bottom surface of the bottom plate 81a, three L-shaped leg portions 81g, 81h, 81i are formed in parallel at substantially equal intervals in the width direction. The leg portion 81g formed closest to the gap 42 and the leg portion 81h formed in the center are positioned farthest from the gap 42, that is, in a direction facing the leg portion 81i formed immediately below the second side plate 81d. . These leg portions 81g, 81h, 81i are mounted on the liner member 83, stably support the entire third edge member 61, and engage with the liner member 83 as will be described later. 61 is positioned in the second horizontal direction X2 with respect to the liner member 83, and displacement in the second horizontal direction X2 is prevented. In this state, the portion of the third edge member 61 on the one end side in the width direction from the leg portion 81 g closest to the gap 42 projects into the gap 42.

  A support surface 85 perpendicular to the second side plate 81d is formed at a portion 84 where the second side plate 81d, the screw receiving portion 81e and the parting piece 81f intersect with each other, and the decorative cover 82 of the decorative cover 82 is formed on the support surface 85. The other end in the width direction is mounted and supported. One end portion in the width direction of the decorative cover 82 is disposed immediately above the first side plate 81b, and the cover body 64 is pressed downward by the one end portion in the width direction and the vicinity thereof so as not to be lifted from the third support piece 60. The support piece 60 is reliably supported via the cushion material 86.

  FIG. 3 is a perspective view of the liner member 83. The liner member 83 is a belt-like or rectangular liner plate 90 whose longitudinal direction is the first horizontal direction X1, and the liner plate 90 is locked to the bottom plate 81a at regular intervals of 300 mm to 500 mm in the longitudinal direction. A plurality of locking plates 91. The locking plate 91 is a pair of substrates 93 formed with a long hole 92 extending in the width direction at the center and a diagonal line with respect to the central axis 94 at both ends in the width direction of the substrate 93. Locking pieces 95a and 95b.

  Each locking piece 95a, 95b protrudes from the base plate 93 outward in the width direction (left and right in FIG. 2) in a bowl shape, and the respective leg portions 81h, 81i of the third edge member 61 are engaged. And locked. The upper end surface of the anchor plug 96 (see FIG. 2) of the anchor body 59 faces upward through the through hole 99 formed in the liner plate 90 and passes through the bolt insertion hole 97 of the bottom plate 81a. The anchor bolt 98 attached in this manner is screwed, and the main body 81 is fixed horizontally on the liner member 83.

  The locking plate 91 may be a long or short material obtained by cutting a long aluminum extruded profile having locking pieces 95a and 95b continuous in the longitudinal direction into a required length. Further, after aligning the bolt insertion hole 97 with the elongated hole 92 of the locking plate 91, the liner plate 90 and the housing 43 b are drilled, and the anchor plug 96 is inserted to fix the anchor bolt 98. Good.

  FIG. 4 is an enlarged cross-sectional view of the expansion joint device 41 for floors as viewed from the section line DD in FIG. The second edge member 56 is fixed on the second attachment surface 53 of the floor portion 46 of one housing 43b adjacent to the first edge member 51 and the first horizontal direction X1. A specific configuration of the second edge member 56 will be described below.

  The second edge member 56 includes a main body 101, a liner member 102, and a decorative cover 103. The main body 101 is formed with a first side plate 101b that rises at a right angle upward at one end in the width direction of the flat first bottom plate 101a, and falls at a right angle at the other end in the width direction of the first bottom plate 101a. A stepped portion 101c is connected, and a second bottom plate 101d extends in a direction away from the first side plate 101a at a lower end portion of the stepped portion 101c and is connected at a right angle. A second side plate 101e is formed at the other end in the width direction of the second bottom plate 101d so as to rise upward at a right angle, and an upper edge plate protruding at a right angle toward the first side plate 101a at the upper end of the second side plate 101e. 101f is formed.

  An L-shaped fitting piece 101g to which one end in the width direction of the second water-stop sheet 63 is fitted is formed on the lower surface of the bottom plate 101d. The second side plate 101e and the upper edge plate 101f constitute the second support piece 55, and the upper edge plate 101f is provided with a cushion material 104 similar to the cushion material 69 attached to the first support piece 50. Is done.

  At the upper end of the first side plate 101b, a substantially U-shaped screw receiving portion 101h that protrudes toward the second side plate 101e, and protrudes to the opposite side (left side in FIG. 4) from the second side plate 101e and rises upward. A parting piece 101i is formed.

  On the lower surface of the first bottom plate 101a, two L-shaped leg portions 101j, 101k are formed in parallel with a gap in the width direction. Each of the legs 101j and 101k has an L-shaped cross section protruding in a direction close to each other, is mounted on the liner member 102, stably supports the entire second edge member 56, and is associated with the liner member 102. In addition, the second edge member 56 is positioned in the second horizontal direction X2 with respect to the liner member 102 to prevent displacement in the second horizontal direction X2. In this state, the portion on the other end side in the width direction from the leg portion 101 k on the gap 42 side of the second edge member 56 projects into the gap 42.

  A support surface 106 perpendicular to the first side plate 101b is formed at a portion 105 where the first side plate 101b, the screw receiving portion 101h and the parting piece 101i intersect with each other, and the width of the decorative cover 103 is formed on the support surface 106. One end of the direction is mounted and supported. The other end in the width direction of the decorative cover 103 is slightly retracted to the first side plate 101b side rather than just above the second side plate 101e, and the cover body 64 is pressed downward by the other end in the width direction. 2 is securely supported by the support piece 55 via the cushion material 104.

  The liner member 102 is configured in substantially the same manner as the liner member 83, but is different in that it has a width substantially equal to the two legs 101, 101 of the second edge member 56. That is, the liner member 102 is a belt-like or rectangular liner plate 110 having a first horizontal direction X1 as a longitudinal direction, and the liner plate 110 is spaced from the first bottom plate 101a at an equal interval of 300 mm to 500 mm in the longitudinal direction. And a plurality of locking plates 111 to be locked. The locking plate 111 is a pair of a substrate 113 formed with a long hole 112 extending in the width direction at the center, and a position opposite to each other on one diagonal with respect to the central axis 114 at both ends in the width direction of the substrate 113. Locking pieces 115a and 115b.

  Each locking piece 115a, 115b protrudes from the base plate 103 outward in the width direction (left and right in FIG. 4) in a hook shape, and the respective leg portions 101j, 101k of the second edge member 56 are engaged with each other. And locked. In the long hole 112, the upper end surface of the anchor plug 116 of the anchor body 54 faces upward through a through hole 117 formed in the liner plate 110, and is inserted through the bolt insertion hole 118 of the first bottom plate 101a. The anchor bolt 119 is screwed and the main body 101 is fixed horizontally on the liner member 102.

  The locking plate 111 may be a long or short material obtained by cutting an aluminum extruded profile having locking pieces 115a and 115b continuous in the longitudinal direction into a required length. Also, after aligning the bolt insertion hole 117 with the long hole 112 of the locking plate 111, the liner plate 110 and the housing 43a are drilled, and the anchor plug 116 is inserted and the anchor bolt 119 is fixed. Good.

  According to the floor expansion joint device 41 as described above, the first edge member 51 corresponds to the amount of compressive deformation of the packing 68 when the respective frames 43a and 43b are displaced in the direction of approaching each other due to an earthquake or the like. The distance to be moved is the proximity displacement absorption amount L11, and the second edge member 56 is the distance until the first bent portion 74 of the cover body 64 comes into contact with the screw receiving portion 101h, the proximity displacement absorption amount L12. The distance until the other end in the width direction of the cover body 64 comes into contact with the second side plate 81d is set as the proximity displacement absorption amount L13, and relative displacement in the approaching direction between the housings 43a and 43b can be allowed.

  Further, when the respective casings 43, 43 b are relatively displaced in the direction away from each other, the first edge member 51 is displaced by the first support piece 50 in the direction away from the first edge member 51 of the cover body 64. The second edge member 56 is prevented from being displaced away from the second edge member 56 of the cover body 64 by the second support piece 55, and the third edge member 61 is the other end in the width direction of the cover body 64. The distance until the second support piece 60 is locked to the third support piece 60 is defined as the separation displacement absorption amount L14, and relative displacement in the direction in which the housings 43 and 43b are separated from each other can be allowed.

  Thus, the width direction one end part of the cover body 64 is supported by the first and second edge members 51 and 56, and the width direction other end part of the cover body 64 is supported by the third edge material 61 so as to be displaceable. The cover body 64 can be continuously arranged in the first horizontal direction X1, prevents the appearance of the housing 43a and 43b from being generated without deteriorating the appearance, and prevents the appearance from deteriorating. In addition, the displacement between the housings 43a and 43b can be allowed.

  In addition, by providing the first and second bent portions 74 and 75 as engaging portions at one end in the width direction of the cover body 64, even if the respective casings 43a and 43b are relatively displaced in a direction away from each other. The first and second bent portions 74 and 75 can be engaged with the first and second support pieces 50 and 55 from the side of the one housing 43a to prevent the cover body 64 from falling off. Further, the first and second bent portions 74 and 75 of the cover body 64 are engaged with the first and second support pieces 50 and 55, so that the cover body 64 is separated from the first edge member 51 or the second edge member 56. Generation of an opening due to separation can be prevented.

  FIG. 5 is a vertical cross-sectional view showing a floor expansion joint device 41a according to another embodiment of the present invention, and shows a cross section as viewed from the cutting plane line DD in FIG. 1 (2). Note that portions corresponding to those of the above-described embodiment are denoted by the same reference numerals. It should be noted in the floor expansion joint device 41a of the present embodiment that the cover body 64a has a first inclined portion 121 formed on one end in the width direction and a second inclined portion 122 on the other end in the width direction. The horizontal portion 123 is formed between the first and second inclined portions 121 and 122.

  Since the cover body 64a configured in this manner is supported by the second and third support pieces 55 and 60 so as to be displaceable in the second horizontal direction X2, the proximity displacement absorption amounts L12 and L13 between the housings 43a and 43b are supported. Can be allowed relative displacement in the proximity direction, and one end in the width direction of the cover body 64a can absorb the separation displacement absorption amount L15 with respect to the second support piece 55 of the second edge member 56. Therefore, it is possible to allow a larger relative displacement between the housings 43a and 43b with respect to the displacement in the direction of separating in the second horizontal direction X2.

It is a figure which shows the expansion joint apparatus 41 for floors of one Embodiment of this invention, FIG. 1 (1) is a vertical sectional view which shows the structure in the floor part 44 of the expansion joint apparatus 41 for floors, FIG. ) Is a plan view of the expansion joint device 41 for floors, and FIG. 1 (3) is a vertical cross-sectional view showing the configuration of the wall portion 45 of the expansion joint device 41 for floors. It is an expanded sectional view of the expansion joint apparatus 41 for floors seen from the cut surface line EE of FIG. 4 is a perspective view of a liner member 83. FIG. It is an expanded sectional view of the expansion joint apparatus 41 for floors seen from the cut surface line DD of FIG. 2 (2). It is a vertical sectional view showing a floor expansion joint device 41a according to another embodiment of the present invention. It is a figure for demonstrating the structure of the conventional expansion joint apparatus 1 for floors, FIG. 6 (1) is a vertical sectional view of the 1st expansion-contraction structure 6, FIG. FIG. 6 is a plan view of the device 1 as viewed from above, and FIG. 6 (3) is a vertical sectional view of the second stretchable structure 7.

Explanation of symbols

41, 41a Expansion joint device for floor 42 Gap 43a, 43b Housing 44 Floor 45 Wall 46 Floor 50 First support piece 51 First edge member 53 Second mounting surface 54 Anchor body 55 Second support piece 56 Second edge Material 58 Third mounting surface 59 Anchor body 60 Third support piece 61 Third edge member 64 Cover body 83 Liner member

Claims (3)

One of the two buildings adjacent to each other in the second horizontal direction perpendicular to the first horizontal direction with a gap extending in the first horizontal direction is adjacent to the floor and wall adjacent to the second horizontal direction. And a floor portion that faces the floor portion and the wall portion of the one housing body in the first horizontal direction, facing the space, and is provided on the other side of each housing body. The gap follows the relative displacement between the respective casings between the floor of the other casing and the floor of the other casing and between the wall of the one casing and the floor of the other casing. In the expansion joint device for floors that maintains the closed state,
A first support piece fixed to a wall portion of the one housing on a first vertical mounting surface of a facing portion close to the gap and projecting toward the other housing from the first mounting surface. Rim material,
A second edge having a second support piece fixed to the floor portion of the one casing on a horizontal second mounting surface of an opposing portion close to the gap and continuous in the first horizontal direction with the first support piece. Material,
Fixed to the floor of the other housing on the vertical third mounting surface of the facing portion close to the gap, and parallel to the first and second support pieces with a predetermined interval in the second horizontal direction. A third edge member having a third support piece disposed;
A cover body supported at one end in the width direction by the first and second support pieces and supported at the other end in the width direction so as to be displaceable by the third support piece;
Between the first edge member and the cover body , a hollow packing having flexibility and elasticity is attached ,
The packing has a first side portion arranged in parallel along a first side plate of the first edge member fixed to the first mounting surface;
A second side parallel to the first side;
A substantially U-shaped guide portion for connecting the respective one end portions of the first and second side portions;
An upper wall portion connecting the other end portions of the first and second side portions;
A first lip projecting from one end of the upper wall to the wall of the one housing;
A second lip projecting from the other end of the upper wall,
Floor expansion joints and wherein the Rukoto which have a and the projection projecting outwardly from the connecting portion of the guide portion and the second side.   2. The floor expansion joint device according to claim 1, wherein the cover body has an engaging portion that faces the first and second support pieces from one side of the housing at one end in the width direction.   The floor expansion joint device according to claim 1, wherein one end of the cover body in the width direction is supported by the first and second support pieces so as to be displaceable in the second horizontal direction.

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