JP3691131B2 - Expansion joint - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an expansion joint for covering the adjacent interstitial space of a construct.
[0002]
[Prior art]
In the conventional expansion joint, fixing members are respectively fixed to the frame surfaces on both sides of the gap with anchor bolts, and a locking portion of a spring member is provided at the frame gap end of the fixing member, and a W-shaped spring member is provided on the locking portion. Engage the locking projections that extend both upper ends, place a W-shaped spring member in the gap of the housing, and fix the center of the cover material to the center of the upper end of the spring member. What was comprised so that it might be made to straddle across a housing is used. In this case, the W-shaped spring member is configured to be accommodated in the gap of the casing in order to suppress the degree of protrusion of the cover material from the casing surface. Moreover, although several types of spring members having an improved W shape have been disclosed, all of these were arranged in the gap between the casings.
[0003]
[Problems to be solved by the invention]
Although the expansion joint as described above has been considered to be able to cope with frame fluctuations such as front and rear, left and right, the range in which the fluctuation of both frames can be absorbed is naturally limited because the spring member is arranged in the gap between the frames. there were.
According to the present invention, when a larger case variation occurs, the expansion joint having the conventional structure cannot cope with the change, and depending on the situation, there is a possibility that the members arranged in the case gap may be damaged by the case change. In any case, attention is paid to the fact that there is a strong possibility that the cover material will fail to be fixed and an accident such as dropping of the cover material will occur, and this problem has been improved.
Therefore, the present invention can cope with a larger variation of the body, eliminates the possibility of damage to the member and the possibility of the cover material falling off as much as possible, and is capable of any of a relatively small gap to a large gap. Even so, an expansion joint that can be mounted without disposing a member in the gap between the housings is provided in order to provide a configuration that can be installed.
[0004]
[Means for Solving the Problems]
In order to solve the above-mentioned problems, the present invention is an elongated fixing member that is fixed to one adjacent housing surface through a gap and has a configuration that supports one end portion of a spring member, and one end portion that is fixed above A spring member that supports the member, connects the other end to the bracket, provides spring elasticity between the two members, and connects to the spring member, and uses the spring elasticity to connect the tip to the other housing surface. A bracket having an appropriate width that can be disposed so as to be able to contact, and a long cover material that is fixed to the outside of the bracket and that can be disposed so that both ends can be pressed against adjacent housing surfaces. Each of the members is an expansion joint that can be installed without entering the gap between the two housings , and the spring member has at least two coiled spring portions coaxially spaced apart from each other. Extension Formed as a torsion spring with a structure where the toe part is formed and the spring part is integrated by an extended connecting part, and the bearing part provided on the bracket is arranged coaxially in the middle part of each spring part The expansion joint has a configuration in which these are pivotally supported and the connecting portion is locked to the intermediate portion of the bracket.
[0005]
According to the above configuration, the fixing member is fixed to the surface of the adjacent casing without entering the clearance between the adjacent casings and held by the fixing member regardless of whether the outer wall surface of the adjacent casing is parallel or crossed. The spring member can be locked to the bracket in a state where the spring member is disposed outside the housing gap, and the end of the bracket can be brought into contact with the other housing surface, so that the bracket can be changed by the spring member and the other housing Because it is slidable with respect to fluctuations, it can absorb the fluctuations of both housings sufficiently, and even if both housings fluctuate and the gaps between the housings abruptly narrow, the members do not enter between the housings. It can be taken large and damage to the member can be prevented.
Since the cover member is fixed to the bracket and covers between the two casings, the cover member can be freely displaced while absorbing the variation of the casing together with the brackets, and is unlikely to fall off.
[0006]
In addition, while utilizing the spring action of the spring member, the bracket is supported in a variable or rotatable manner with respect to one of the housing surfaces, the cover material is stably fixed to the bracket, and the housing gap can be maintained in the clothing state.
In the above configuration, the spring support portion of the fixing member can have a pair of configurations of a locking hole formed in the protrusion and a locking groove formed adjacently.
[0007]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, the present invention will be described with reference to the drawings of embodiments.
1 to 4 show the first embodiment, FIGS. 5 to 8 show its operating state, and FIG. 9 shows the second embodiment.
First, the first embodiment will be described. Reference numeral 1 denotes a long fixing member extending in the longitudinal direction of the housing gap S, and is a fixing surface fixed to a portion of one housing surface A that does not enter the housing gap S. 11, a protruding piece 12 protruding outward from the fixed surface 11, a spring support portion 13 formed on the protruding piece 12, and a waterproof sheet end locking portion 16 formed on the housing gap side of the protruding piece 12. The spring support portion 13 includes a pair of a locking hole 14 that can lock the two locking end portions 22 and 22 on one end side of the spring member 2 and a locking groove 15 that is cut into a hook shape. A plurality of spring support portions are formed at appropriate intervals on the projecting piece 12.
[0008]
The spring member 2 has two coiled spring portions 21 and 21 as coaxial torsion springs formed at an appropriate interval and coaxially, and the outer ends of both spring portions are extended outward to form a hook-like shape. The locking end portions 22 and 22 are formed respectively, and the end portions between the spring portions 21 and 21 are formed as parallel extension portions 24 and 24, which are bent and continuously integrated with each other. A portion 23 is provided. The extension portions 24, 24 are bent portions 25, 25 at the intermediate portions, respectively, and the connecting portion 23 on the distal end side is bent at an appropriate angle in the spring biasing direction (twisting direction). .
[0009]
Reference numeral 3 denotes a plate-shaped bracket having an appropriate width in the longitudinal direction of the housing gap, and in a state of being locked to the spring member 2, the distal end portion (the other end portion) extends from the gap end of the other housing surface B. The length is set so as to be able to come into contact with a portion that is appropriately inserted into the outer surface by a distance, protrudes from the back side of the original end portion (one end portion) of the plate portion 31 or has an opening shape, and the spring of the spring member 2 A cylindrical or U-shaped bearing portion 32 is provided coaxially between the portions 21 and 21, and a contact piece portion 33 is provided at the other end portion and bent to the back side so as to extend to an appropriate length. The tip of the contact piece 33 is a curved V-shaped folded end 34, and a spring engaging groove 35 that can engage the connecting portion 23 of the spring member 2 is formed in the width direction outside the intermediate portion of the plate portion. It is.
[0010]
A bearing portion 32 at one end of the bracket 3 is coaxially arranged between the spring portions 21 and 21, and a rod-like pin 4 having a locking head is inserted from the outside of one spring portion 21 to prevent the tip portion from coming off. By fixing the nut, the spring member 2 and the bracket 3 can be relatively pivotably connected.
At this time, the spring member 2 and the bracket 3 are configured such that the plate portion 31 of the bracket 3 is in parallel with the housing surface B in the state where the expansion joints are installed on both housing surfaces A and B, and at the same time the contact piece 33 is the housing. It is set so as to be in moderate pressure contact with the surface B.
The pin 4 can be formed by forming a through hole in the tip portion and attaching a locking pin to the hole in a cross shape instead of fixing a nut to the tip portion. A locking rod that can be rotated in a portion and arranged in a cross shape or a T shape can be pivotally attached, and other configurations can be adopted.
[0011]
5 is a long cover material along the longitudinal direction of the housing gap, and has a length in the width direction of the housing gap sufficient to join the outer surface of the plate portion 31 of the bracket 3 and cover the housing gap S. Side plate portions 52 are bent at both ends of the cover plate portion 51, and elastic seal members 53, 53 for body surface pressure contact are attached to the tip portions of the side plate portions 52, 52, respectively. Reference numeral 6 denotes a long fixing member that is fixed to the other casing surface B along the longitudinal direction of the casing gap, and a waterproof sheet end locking portion 61 is provided at one end along the casing gap side of the plate portion having an appropriate width. It is formed.
[0012]
Construction of the expansion joint having the above configuration is performed as follows.
First, the fixing member 1 is fixed to a portion of the one casing surface A that does not enter the casing gap, the fixing member 22 is fixed to the outer surface of the other casing surface B with an anchor bolt, and then the spring support portion of the fixing member 1 is fixed. The spring member 2 is locked to 13, and this locking is performed by inserting and locking one locking end 22 of the spring member 2 into the locking hole 14 of the spring support portion 13, and the other locking end 22. The spring member is compressed using the restoring force of the spring while being inserted into the locking groove 15 so as to compress the spring member. Next, the bracket 3 is locked to the spring member 2. This locking is achieved by locking the distal end portion of the connecting portion 23 of the spring member 2 in the spring engaging groove 35 on the outer side of the intermediate portion of the plate portion 31, and the bearing portion 32 at one end of the spring portion 21, 21 of the spring member 2. It arrange | positions in between and it carries out by inserting the pin 4 through the spring part 21, the spring engaging groove 35, and the spring part 21. FIG.
[0013]
In this way, the bracket 3 is connected to the fixing member 1 via the spring member 2, and the contact piece 33 at the tip of the bracket 3 is installed in a state in which the bracket 3 is appropriately pressed against the other housing surface B by the spring pressure. Is done. Note that either the locking of the spring member 2 to the fixing member 1 or the locking of the bracket 3 to the spring member 2 may be performed before or after.
On this, the cover plate 5 is covered from the outside, and the cover plate 51 is attached to the plate of the bracket 3 in a state in which the seal members 53 and 53 attached to the respective tips of the side plates 52 and 52 are pressed against the housing surfaces A and B. The construction can be completed as shown in FIG. 1 by joining to the outside of the portion 31 and fixing them with screws from the outside. It is optional to waterproof the screw part.
[0014]
According to the above expansion joint, when the housing fluctuates and the housing gap S widens, as shown in FIG. 5, the outer surface of the housing surface B to the fixing member 6, the contact piece 33 at the tip of the bracket 3 and the cover material. Fluctuations can be absorbed by the relative sliding of the seal member 53 at one end. Since the covering function of the cover material 5 is not impaired until the end portion of the cover material 5 is detached from the housing surface B, at least one of the length of the bracket 3 and the width of the cover material 5 is appropriately set. Large fluctuations can be sufficiently absorbed by setting the length.
When the housing gap S is reduced, as shown in FIG. 6, the contact piece 33 and the seal member 53 only slide on the housing surface B, and both the fixing member 1 and the spring member 2 are within the housing gap S. Since it is not installed in the air, there is no risk of damage, and absorption is possible even if the reduction fluctuation is large.
[0015]
Further, when the housing surfaces A and B are in the depth direction of the housing gap and change in the direction in which the fixing members 1 and 22 are separated from each other, as shown in FIG. Due to the action, the bracket 3 changes in a rotating state with respect to the fixing member 1 and the tip end side is displaced in the frame surface B direction, so that the cover material 5 is also displaced together with the bracket 3 and can be maintained while covering the frame gap. There is no risk of doing so.
When the depth direction is changed so that the fixing members 1 and 22 approach each other, as shown in FIG. 8, the bracket 3 is displaced in the rotating state by the action in the torsional direction of the spring member 2, Although the tip side is displaced in the direction of torsion of the spring, the cover material 5 is also displaced together with the bracket 3 and can be maintained while covering the housing gap, even if the gap corner of the housing surface B contacts the back surface side of the bracket 3. The covering state can be maintained simply by lifting the piece 33 and creating a gap at the end.
[0016]
Although not shown in the figure, fluctuations in the longitudinal direction of the gaps between the two bodies are not illustrated, but by loosely connecting the members in the longitudinal direction, the elastic deformation of the spring member 2, particularly the spring member. In addition to the displacement of the locking portion, fluctuations can be absorbed by these displacements.
With respect to the body fluctuations in directions other than the above, the fluctuations are absorbed in the combined state of the above changes.
[0017]
FIG. 9 shows a second embodiment. This example is an example of an expansion joint that is constructed in a gap portion of a casing in which the casing surfaces A and B are coplanar.
That is, although it has basically the same configuration as the above embodiment, the protruding piece 12A of the fixing member 1A is formed in parallel with the fixing surface 11A, and the spring member 2A is formed at the base of the protruding piece 12A. The cover stopper 5A is formed so that the cover plate portion 51A has a flat plate shape, and the side plate portion 52A and the seal member 53A are formed symmetrically.
The expansion joint is constructed in accordance with the above embodiment by connecting the bracket 3A to the fixing member 1A on the casing surface A via the spring member 2A and bringing the contact piece 33A into contact with the other casing surface B. The cover material 5A may be covered with 3A and fixed with screws. Seal members 53A and 53A at both ends of the cover material 5A are in pressure contact with both housing surfaces. The operation corresponding to the variation of the housing is the same as in the above embodiment.
[0018]
【The invention's effect】
As described above, according to the present invention, the cover member is fixed to the bracket, and the bracket is supported by the fixing member fixed to one housing surface via the spring member in a cantilevered manner so as to be rotatable. The expansion joint can be provided in such a way that the front end of one of the two abuts against the other housing surface, so that a large follow-up range can be secured regardless of the variation range of the adjacent housing, and it can enter the housing gap. Since members such as spring members and fixing members can be installed in a state that does not occur, the mounting state of the expansion joint can be stably maintained even when the housing is fluctuating, and the risk of the cover material falling off is prevented. In addition, the degree of protrusion of the cover material from the housing surface can be reduced.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view of an expansion joint according to a first embodiment when installed.
FIG. 2 is a partial perspective view illustrating a connection configuration between a fixing member and a spring member in FIG.
3 is a partial perspective view illustrating a connection configuration of a fixing member, a spring member, and a bracket in FIG. 1;
4 is a partial perspective view showing the cover member of FIG. 1 separately.
FIG. 5 is a cross-sectional view of the operation of the expansion joint shown in FIG.
FIG. 6 is an operational cross-sectional view showing a state of variation of the body in the same direction of expansion of the body gap.
FIG. 7 is an operational cross-sectional view showing a state of variation of the body in the same direction as the depth of the body gap and in the separation direction.
FIG. 8 is a cross-sectional view of an action showing a state in which the housing changes in the approach direction in the depth direction.
FIG. 9 is a sectional view of an expansion joint according to a second embodiment when installed.
[Explanation of symbols]
1, 1A Fixing member 11 Fixing surface 12 Projection piece 13 Spring support portion 14 Locking hole 15 Locking groove 16 Waterproof sheet end locking portion 2, 2A Spring member 21 Spring portion 22 Locking end portion 23 Connecting portion 24 Extension portion 25 Bending portion 3, 3A Bracket 31 Plate portion 32 Bearing portion 33 Contact piece portion 34 Folding end 35 Spring engagement groove 4 Pin 5, 5A Cover material 51 Plate portion 52 Side plate portion 53 Seal member 6 Fixing members A, B Housing surface S interstitial gap

Claims (1)

A long fixing member fixed to one of the adjacent housing surfaces via a gap and having a configuration for supporting one end of the spring member;
One end is supported by the fixing member, the other end is connected to the bracket, and a spring member that imparts spring elasticity between the two members;
While being connected to this spring member, a bracket of an appropriate width that can be disposed so as to be able to abut on the other adjacent housing surface using spring elasticity, and
It is fixed to the outside of this bracket, and has at least a long cover material that can be disposed so that both end portions can be press-contacted to adjacent housing surfaces,
Any member is an expansion joint that can be installed without entering the gap between the two housings ,
The spring member has at least two coil-shaped spring portions coaxially at intervals, and each spring portion has a locking end portion of an extended strip, and the spring portion is bent by an extended connecting portion. It is formed as a torsion spring with an integrated structure, and a bearing part provided on the bracket is coaxially arranged at the middle part of each spring part, and these are pivotally supported, and the connecting part is an intermediate part of the bracket. An expansion joint that has a structure that is locked to the joint.

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