JP2001182173A - Expansion joint - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an expansion joint capable of allowing the mutual displacement between buildings without producing a step to each floor face between the floor faces of the adjacent buildings and blocking the gap between the buildings. SOLUTION: A pair of edge materials 5a, 5b spaced apart from the gap 2 and fixed on each floor 4a, 4b of the two buildings, a link means 8 provided to be inclined on each edge material 5a, 5b in the direction of being intersected with each edge material 5a, 5b, supported movably on the edge material 5a being any one of each edge material 5a, 5b on longitudinal one-side ends 6a, 7a in the directions of arrow marks A1, A2 and supported in angular- displaceably in the directions of arrow marks B1, B2 and supported in angular- displaceably on the edge material 5b being the other of any one of each edge material 5a, 5b on longitudinal other ends 6a, 7b in the directions of arrow marks C1, C2, and a plurality of timbers 9 supported on the link means, arranged in parallel with each edge material 5a, 5b between the edge materials 5a, 5b and in the form of a comb by mutually opening the gap ΔL1 are provided.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an expansion joint device that allows relative displacement between buildings due to earthquakes, uneven settlement of the ground, etc., and closes a gap between floors of the buildings.

[0002]

2. Description of the Related Art A typical prior art is disclosed in Japanese Unexamined Patent Publication No. 9-41.
No. 98 publication. In this conventional technique, a plurality of bar members are provided between each floor of two buildings adjacent to each other with a gap therebetween. One longitudinal end of each bar member is connected to one floor by a bolt so as to be angularly displaceable about the axis of the bolt. Further, the other end in the longitudinal direction of each bar member is connected to a spacing member made of an elastic material such as a synthetic rubber or a soft synthetic resin at a distance from each other and bound by wires, and is bound on the other floor. , And a central portion between both ends in the longitudinal direction is also bound by a wire with a spacing member similar to the other end in the longitudinal direction. Since each such bar member is supported in a state in which both ends in the longitudinal direction are mounted on the floor surface of each floor, at both ends in the longitudinal direction,
An inclined surface that is inclined downward as it moves away from each other is formed. With such an expansion joint device, it is configured such that each building is allowed to displace in a direction in which the buildings relatively approach and separate from each other, and a gap between the buildings can be closed.

[0003]

In the above-mentioned conventional expansion joint device, a plurality of bar members provided between the floors are mounted on the floor surface of each floor at both ends in the longitudinal direction. Passengers moving from one building to the other can easily trip over each bar member protruding from each floor surface, which may hinder walking. Particularly, in a hospital, when each bar member protrudes from each floor surface as described above when moving a trolley or the like on which a patient transport bed and medical equipment are mounted, the protrusion amount is as small as 2 to 3 mm. Even so, there is a problem that the patient transporting bed gives an impact to the patient being transported. In addition, if the cart carrying the medical device is inadvertently passed over each bar member protruding from the floor, the medical device on the cart may be damaged by an impact force. As described above, if there is a step on each floor surface, even if the step is small, a trouble occurs at the time of passage, and an expansion joint device without a step has been conventionally desired.

[0004] It is an object of the present invention to allow relative displacement between buildings between adjacent floors without generating a step with respect to each floor, and to close a gap between buildings. It is an object of the present invention to provide an expansion joint device capable of performing the following.

[0005]

According to the first aspect of the present invention, an edge material is fixed in parallel to each floor of two buildings adjacent to each other with a gap therebetween, and each edge material is attached to each edge material. One end in the longitudinal direction is supported movably and angularly displaceable by one edge member, and the other end in the longitudinal direction is supported by the other edge member so as to be angularly displaceable. Link means is provided, and the link means has a plurality of steps arranged in a comb-like manner in parallel with each edge material and with a gap between each edge material, with respect to the link means. The expansion joint device is rotatably supported, and the upper surface of each step rail is substantially flush with the floor surface of each floor.

According to the present invention, an air gap exists between two adjacent buildings, and a rim is fixed in parallel to each floor of each building. Each edge member is provided with link means inclined in a direction intersecting with each edge member. One end of the link means in the longitudinal direction is supported by one edge member so as to be movable and angularly displaceable. The other end in the longitudinal direction of the link means is supported by the other edge member so as to be angularly displaceable. In such a link means, a plurality of step bars arranged in a comb-tooth shape in parallel with each edge member and with a gap therebetween are rotatably supported between the edge members. Thus, the upper surface of each step installed on each edge member is substantially flush with the floor surface of each floor. Therefore, even if each building is displaced in the direction of approaching and moving away from each other without a step on each floor surface,
The link means uniformly reduces and increases the distance between the steps, expands and contracts in directions approaching and moving away from each other, allowing relative displacement between the buildings, and reducing the gap. Can be reliably closed.

According to a second aspect of the present invention, the link means has a link member for supporting the plurality of steps and a reinforcing member for supporting the link member.

According to the present invention, since the link means has a link member for supporting the plurality of steps and a reinforcing member for supporting the link member, the link member can be separated from the reinforcing member. When it is necessary to open the gap for cleaning and collecting fallen objects in the gap between the floors, the reinforcing member is left installed on each rim,
Since only the link member and each step are lifted, the gap is opened, and after the cleaning or collection of the fallen object is completed, the link member and each step may be installed on each rim and the reinforcing member. The labor for lifting and lowering work is small, and operations such as cleaning of the gap and collection of falling objects can be easily performed.

[0009]

FIG. 1 is a sectional view showing an expansion joint device 1 according to an embodiment of the present invention, and FIG. 2 is a plan view of the expansion joint device 1. As shown in FIG. Expansion joint device 1 of the present embodiment
Intersects a pair of rims 5a, 5b fixed to floors 4a, 4b of two buildings 3a, 3b adjacent to each other with a gap 2, a ridge 5a, 5b, and a ridge 5a, 5b. The one end portions 6a and 7a in the longitudinal direction are supported by one edge member 5a so as to be movable in the directions of the arrows A1 and A2 and to be angularly displaceable in the directions of the arrows B1 and B2. The other end portions 6b and 7b in the direction are supported by the other edge member 5b so as to be angularly displaceable in the directions of arrows C1 and C2, and supported on the link member 8, between the edge members 5a and 5b. And a plurality of steps 9 arranged in a comb shape in parallel with each edge member 5a, 5b and with a gap ΔL therebetween.

Each of the floors 4a and 4b has vertical opposed wall surfaces 24a and 24b facing each other at an interval L1 in the horizontal width direction (the left-right direction in FIG. 1).
The gap 2 is interposed between 4a and 24b. The interval L1 is, for example, about 100 to 500 mm. The buildings 3a, 3b are displaced in directions approaching and moving away from each other due to a sudden earthquake, uneven settlement of the ground, and the like, and allow this displacement, and maintain a state in which the gap 2 is closed so that no gap is generated. The expansion joint device 1 of the present embodiment is provided between the floors 4a and 4b.

The one edge member 5a has a parting member 10a having an inverted L-shaped cross section perpendicular to its longitudinal direction (perpendicular to the plane of FIG. 1), and a substantially U-shaped cross section perpendicular to its longitudinal direction. -Shaped support member 11a and a substantially U-shaped guide member 1 whose cross-sectional shape perpendicular to the longitudinal direction is smaller in width than the support member 11a.
2a. The parting member 10a includes a side wall portion 13
a and an upper cover portion 14a. The support member 1
1a includes a bottom plate portion 15a and an outer rising portion 16a.
And an inner rising portion 17a. The guide member 12a has a bottom plate portion 18a, an outer rising portion 19a, and an inner rising portion 20a.

The parting member 10a is fixed to the supporting member 11a by screws 22a. The support member 11a
Are fixed to the horizontal mounting surface 23a of the floor 4a by anchor bolts (not shown). The guide member 12a is fixed by welding to the bottom plate portion 18a of the support member 11a.

The parting member 10 of the one edge member 5a as described above.
a and the support member 11a are realized by a molded material made of stainless steel, and the guide member 12a is realized by a molded material made of stainless steel. Further, the other edge member 5b is a virtual one vertical plane 2 between the floors 4a and 4b.
Regarding 1, it is configured symmetrically with the one edge material 5 a, and the corresponding portions are denoted by the same numerals with the suffix b, and the description is omitted to avoid duplication.

As described above, each edge member 5a, 5b is inclined at an angle θ in a direction intersecting the longitudinal direction of the edge member 5a, 5b perpendicular to the plane of FIG. A supported link means 8 and a plurality of steps 9 supported on the link means 8 are provided. The angle θ is between 30 ° and 6
0 °, preferably about 45 °. In the present embodiment, the link means 8 comprises the above-mentioned two link arms 8 _J and 8 _K arranged in parallel, and these link arms 8 _J and 8 _K are connected to a link member 41 described later and an auxiliary member. And a similar configuration.

Each step 9 is arranged in a comb shape across the edge members 5a, 5b in parallel with the edge members 5a, 5b and with a gap ΔL1 therebetween, and has a sectional shape perpendicular to the longitudinal direction. 1, the thickness T1 in the left-right direction is 4 mm, and the height H in the up-down direction of FIG. 1 is 11 mm. Also, a step 9a arranged at one end in the width direction, which is the left-right direction in FIG. 1, and one edge 5a, and a step 9v arranged at the other end in the width, and the other edge 5b Are separated from each other with a gap ΔL1 similar to that between the steps 9.

Such a step 9 is realized by a flat bar made of stainless steel. Upper surface 2 of each step 9
5 is substantially the same plane as the floor surfaces 26a, 26b of the floors 4a, 4b and the upper surfaces 27a, 27b of the edge members 5a, 5b, and is a continuous floor surface on which there is no step between the floor surfaces 26a, 26b. Therefore, no impact occurs when a wheelchair, a patient transport bed, or the like passes.

The gap ΔL1 is set to, for example, 4 mm in an initial state in which the buildings 3a and 3b are not displaced in directions of relatively approaching and separating from each other. A plurality of parallelogram links are constituted by such steps 9 and the link arms 8 _J and 8 _K described above. These link arms 8 _J and 8 _K are connected to link members 41 as described later.
And an auxiliary member 42.

FIG. 3 is a side view showing a specific configuration of the step 9. Each step 9 described above has a fixed length L2,
Pins 33 _{J1 to} 33 _J22 for connection to one link arm 8 _J are provided at respective positions at distances L _{J1 to} L _J22 from the end face 32 a of the one end 31 a in the longitudinal direction to the other end 31 b in the longitudinal direction. End face 32b of the other end 31b in the longitudinal direction.
L _{K1 to} L _K22
The pins 33 _{K1 to} 33 _K22 are provided at the respective positions of. Thus, each step 9 has a pair of pins 33 _J1 , 33
_K1 ……; 33 _J22 , 33 _K22 (In general, pin 3
3 _J , 33 _K ) are provided, respectively, and each pair of pins 33 _J , 33 _K protrudes vertically from the lower surface 34 of each step 9 and has axes parallel to each other.

FIG. 4 is a plan view of the link member 41. FIG.
Each of the link arms 8 _J and 8 _K described above includes a link member 41,
The link member 41 has a reinforcing member 42 fixed to the upper surface. In the link member 41, a plurality of pin holes 43a to 43v are formed in the longitudinal direction at equal intervals ΔL2 from each other in the longitudinal direction. This interval ΔL2 is selected to be, for example, 12.5 mm. The link member 41 is made of stainless steel and has a length L3 of about 27.
0 mm, width W is 30 mm, thickness T3 (see FIG. 1) is 5
mm. Such a link member 41 includes the above-described pin holes 43a and 43v provided at both ends in the longitudinal direction.
Pin holes 43b, 43u located closer to each other than
Are the centers of angular displacement of the link arms 8 _J and 8 _{K in} the directions of the arrows B1 and B2 and the directions of the arrows C1 and C2.

FIG. 5 is a side view of the reinforcing member 42, and FIG. 6 is a plan view of the reinforcing member 42 as viewed from above in FIG.
The reinforcing member 42 is made of stainless steel, and the longitudinal ends 45a, 45b are provided with respective axes 5 of pin holes 43b, 43u formed at the center of angular displacement of the link member 41.
Shaft holes 44a and 44b are formed coaxially with 0 and 53. In the vicinity of both ends 45a and 45b in the longitudinal direction of the reinforcing member 42,
Nearer both ends in the longitudinal direction (in the present embodiment, corresponding to the fifth pin fitting holes 43e, 43r (see FIG. 4) inward from the pin holes 43a, 43v at both ends in the longitudinal direction of the link member 41. Pin holes 46a and 46b are formed at the respective positions.

One end 45a in the longitudinal direction of the reinforcing member 42
Of the holder 70 for holding a straight cylindrical guide roller 54 rotatable about the rotation axis 50 and a spherical guide ball 55 disposed coaxially below the guide roller 54. The shaft 71 is fitted. Guide roller 5
The guide member 4 is guided by being fitted into the guide member 12a of the one edge member 5a so as to be movable in the longitudinal direction of the guide member 12a, and can move linearly along the guide member 12a. The outer diameter of the guide roller 54 is selected to be slightly smaller than the interval between the mutually facing inner surfaces of the rising portions 19a and 20a of the guide member 12a.
When 3b relatively approaches or separates due to an earthquake or uneven settlement of the ground, each rising portion 19a,
Smoothly slides to one of 20a, is guided in a straight line direction, the impact to the link arms 8 _J, 8 _K is relaxed.

Further, since the guide ball 55 is spherical, it comes into contact with the bottom plate portion 18a of the guide member 12a with a point contact or a very small area close thereto, and the link arms 8 _J ,
8 _K in the longitudinal end section 6a, the 7a, the guide member 12
It can be supported so as to be able to move smoothly in the directions of the arrows A1 and A2 along a. That is, since the guide ball 55 is used, the rolling friction of the guide member 12a against the bottom plate portion 18a can be reduced, and the guide member 12a can be easily and smoothly moved along the guide member 12a. By moving ease by linearity and guide ball 55 due to such guide roller 54, it can be guided along smoothly the guide portion 12a of the longitudinal end portions of the link arms 8 _J, 8 _K.

The other longitudinal end 45b of the reinforcing member 42
A metal fitting 48 in the form of a rectangular parallelepiped is rotatably connected around a rotation axis 53 by a rivet 49 with an annular seat plate 47 made of synthetic resin interposed therebetween. The rivet 49
Are caulked in an upper recess 51 recessed from the upper surface of the longitudinal end 45a of the reinforcing member 42 and a lower recess 52 recessed from the lower surface of the fitting piece 48,
The fitting piece 48 is provided on the rivet 49 so as to be rotatable around an axis 53. The fitting piece 48 is fitted into the guide member 12b of the other edge member 5b,
The other longitudinal ends 6b, 7b of the link arms 8 _J , 8 _K
Is held at a fixed position of the other edge member 5b so as to be angularly displaceable in the directions of arrows C1 and C2 around the axis 53.

FIG. 7 is a partially enlarged cross-sectional view showing a mounting state of each step 9 and the link member 41. When each of the steps 9 described above is individually indicated, the same numeral “9” is added to the subscripts a to a.
, and are described as steps 9a, 9b, ..., 9u, 9v.
Each of the pin holes 46 of the reinforcing member 42 among the steps 9a to 9v
Steps 9e, 9 arranged at the site where a, 46b are formed
r (except for the step 9B when collectively referred to), the remaining steps 9a to 9d, 9f to 9q, and 9s to 9v (when collectively referred to as the step 9A) are shown in FIG. Pin 33
_{J1 to} 33 _J4 , 33 _{J6 to} 33 _J17 , 33 _{J19 to} 33 _J22 ; 3
3 _{K1 to} 33 _K4 , 33 _{K6 to} 33 _K17 , 33 _{K19 to} 33
It is rotatably connected to the link member 41 by _K22 (in a generic term, it is described as a pin 33A).

The pins 33A are coaxially connected to the first fitting portion 57a rotatably fitted in the pin hole 56 of each step 9A, and are coaxially connected to the first fitting portion 57a. A second fitting portion 57b having a larger diameter than the first fitting portion 57a and a third fitting portion 57 coaxially connected to the second fitting portion 57b and having the same diameter as the first fitting portion 57a.
c. An annular groove 70 is formed at the base end of the first fitting portion 57a which is continuous with the second fitting portion 57b.
A projection 71 is provided by caulking the open end of the pin hole 56 of each step 9A at 0, and each pin 33A is rotatably retained on each step 9A.

The link member 41 includes the second fitting portion 57
a first fitting hole 58a into which the first fitting hole b is fitted;
And a second fitting hole 58b into which a straight cylindrical retaining ring 59 is press-fitted. This retaining ring 5
The outer peripheral surface of 9 is roughened by knurling or the like, and is prevented from being pulled out into the second fitting hole 58b by press fitting. The third fitting portion 57c is fitted to the retaining ring 59 in a press-fit state and is prevented from being removed. In this way, each step 9A is
The link member 41 and the pins 33A are rotatably connected around the axis of each pin 33A in a state where the pins 33A are not pulled out. The retaining ring 59 may be formed integrally with the third fitting portion 57c.

FIG. 8 is a partially enlarged cross-sectional view showing a mounting state of each step 9B, the link member 41 and the reinforcing member 42. A pin hole 56 similar to the above is formed in each step 9B. In the link member 41, first and second fitting holes 58a and 58b similar to the above are formed. Pin 33B
Is in addition to the first to third fitting portions 57a to 57c,
A fourth fitting portion 57d having the same diameter coaxially connected to the third fitting portion 57c is provided. The fourth fitting portion 57d is fitted in a fitting hole 60 formed in the reinforcing member 42 so as to be rotatable around the axis of the pin 33B. An annular groove 72 is formed at the base end of the first fitting portion 57a, which is continuous with the second fitting portion, similarly to the above-described pins 33A, and the opening of the pin hole 56 of each step bar 9B is formed in the annular groove 72. The protruding portion 73 is provided by caulking the end, and each pin 33A is rotatably retained on each step 9B. The outer peripheral surface of the retaining ring 59 is roughened by knurling or the like, and is retained in the second fitting hole 58b by press fitting. The fourth fitting portion 57d is detachable from the fitting hole 60 because the step bars 9A and 9B and the link member 41 may be separated from the reinforcing member 42 for cleaning or the like as described later. is there. Note that this pin 33
B also has a third fitting portion 57 similar to the pin 33A.
The retaining ring 59 may be formed integrally with the member c. By such a pin 33B, the step 9B and the link member 4 are formed.
1 and the reinforcing member 42 are connected.

FIG. 9 is an enlarged sectional view taken along the line IX-IX of FIG. 2, and FIG. 10 is an enlarged sectional view taken along the line XX of FIG. In the vicinity of one end 6a, 6b in the longitudinal direction of each edge member 5a, 5b, at least two steps 9a, 9b; 9 arranged in the vicinity of each edge member 5a, 5b;
Auxiliary support body 61 for supporting u, 9v smoothly and slidably.
a and 61b are fixed. Each auxiliary support 61a, 61b
Is a generally inverted U-shaped base 62 made of stainless steel.
And a sliding member 65 made of, for example, polytetrafluoroethylene (trade name: Teflon) fixed on a top surface 63 of the base 62 by a screw 64. The sliding member 65
Has a plate-like shape, and each step 9a, 9b; 9u, 9v is mounted so as to be able to move smoothly in the width direction. The link member 4 described above is provided by such auxiliary supports 61a and 61b.
1 and 9u, 9v are supported in the vicinity of both ends in the longitudinal direction of the step bars 9a, 9b; 9u, 9v that are not supported by the reinforcing member 42, and the step bars 9a, 9b; 9u, 9v are largely bent by a load from above. Deformation is prevented.

According to the above configuration, the link means 8 is provided with a plurality of step bars 9 arranged in a comb shape in parallel with the edge members 5a and 5b and spaced from each other. Edge material 5
a, 5b. Thus, each edge material 5
a, 5b, the upper surface 25 of each step 9 is attached to each floor 4
a and 4b are substantially flush with floor surfaces 26a and 26b.
Therefore, even when the buildings 3a, 3b are displaced in the directions A1, A2 approaching and separating from each other without causing a step to the floor surfaces 26a, 26b, the step bars 9 are linked by the link means 8. The gaps ΔL1 between the steps 9 (see FIG. 1) are uniformly reduced and increased to expand and contract in the directions approaching and moving away from each other, thereby allowing relative displacement between the buildings 3a and 3b. In addition, the gap 2 can be reliably closed.

The linking means 8 has a link member 41 for supporting the plurality of steps 9 and a reinforcing member 42 for supporting the link member 41. The link member 41 includes only a pin 33B on the reinforcing member 42. All the steps 9A, 9B
Can be separated from the reinforcing member 42 while the vehicle is mounted. As a result, when it is necessary to open the gap 2 for cleaning the gap 2 between the floors 4a and 4b and collecting fallen objects, the reinforcing member 42 remains installed on the edge members 5a and 5b. Then, only the link member 41 and each step 9 are lifted to open the gap 2, and after the cleaning or the collection of the fallen object is completed, the link member 41 and each step 9 are separated by the edge members 5a, 5b and Since it may be installed on the reinforcing member 42, the labor for lifting and lowering work is small,
Operations such as cleaning the inside of the gap 2 and collecting fallen objects can be easily performed.

As still another embodiment of the present invention, the link arms 8 _J and 8 _K of the link means 8 are not limited to the above-described configuration, but are shown by phantom lines 8 _J 1 and 8 _K 1 in FIG. As shown in the above, each of the one end portions 6a and 7a may be arranged close to each other, and each of the other end portions 6b and 7b may be arranged in a substantially inverted V shape in which they are separated from each other.

As still another embodiment of the present invention, the link member 41 and the reinforcing member 42 may be formed integrally.

[0033]

According to the first aspect of the present invention, each step provided on each edge member is provided such that the upper surface thereof is substantially flush with the floor surface of each floor. Even if each building is displaced in the direction of approaching and moving away from each other without a step with respect to the floor, the steps will be connected to each other with the spacing between the steps kept by the link means. It is possible to expand and contract in the directions of approaching and moving away from each other, allow relative displacement between the buildings, and reliably close the gap.

According to the second aspect of the present invention, when it becomes necessary to open the air gap, the reinforcing member is left installed on each edge member, and only the link member and each step rail are lifted, and After the gap is opened and the cleaning or collection of fallen objects is completed, the link member and each step rail may be installed on each edge member and the reinforcing member, so that labor for lifting and lowering work is reduced, and the gap is easily removed. Work such as cleaning the inside and collecting fallen objects can be performed.

[Brief description of the drawings]

FIG. 1 is a sectional view showing an expansion joint device 1 according to an embodiment of the present invention.

FIG. 2 is a plan view of the expansion joint device 1. FIG.

FIG. 3 is a side view showing a specific configuration of the crosspiece 9;

4 is a plan view of the link member 41. FIG.

5 is a side view of the reinforcing member 42. FIG.

6 is a plan view of the reinforcing member 42 as viewed from above in FIG.

FIG. 7 is a partially enlarged cross-sectional view showing a mounting state of each step 9 and a link member 41.

FIG. 8 is a partially enlarged cross-sectional view showing a mounting state of each step 9B, a link member 41, and a reinforcing member 42.

FIG. 9 is an enlarged cross-sectional view taken along the line IX-IX of FIG. 2;

FIG. 10 is an enlarged cross-sectional view taken along the line XX of FIG. 2;

[Explanation of symbols]

1 expansion joint device 2 gaps 3a, 3b buildings 4a, 4b bed 5a, 5b coaming 8 link means 8 _J, 8 _K link arm 9踏桟10a, 10b parting member 11a, 11b supporting members 12a, 12b guide member 33,33a To 33v pin 41 link member 42 reinforcing member 43a to 43v pin hole 54 guide roller 55 guide ball 61 auxiliary support member

Claims (2)

[Claims] An edge material is fixed in parallel to each floor of two buildings adjacent to each other with a gap therebetween, and each edge material is disposed to be inclined in a direction intersecting with each edge material, and is disposed in a longitudinal direction. One end is movably and angularly displaceably supported by one edge member, and the other end in the longitudinal direction is provided with link means which is angularly displaceable supported by the other edge member. A plurality of stairs arranged in a comb shape in parallel with each edge material and with a gap between the edge materials are rotatably supported with respect to the link means. An expansion joint device which is substantially flush with the floor surface of each floor. 2. The expansion joint device according to claim 1, wherein the link means includes a link member that supports the plurality of steps and a reinforcing member that supports the link member.