JP3618692B2 - Expansion joint end structure - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an end structure of an expansion joint that closes the gap between the frames, and is particularly suitable for supporting an expansion joint end cover of a roof.
[0002]
[Prior art]
In the expansion joint structure, the roof cover end portion is usually attached so as to overlap the upper end portion of the outer wall expansion joint cover with the end face covered with lid in order to prevent rainwater from entering.
However, when the enclosures are shaken by an earthquake, the displaced enclosure surfaces collide with the inside of the lid, and the lid is destroyed.
As a conventional structure in consideration of this point, there is a construction structure in which the cover surface is separated from the housing to keep a sufficient gap, and the end of the roof cover is formed as a slide cover with a cover of an appropriate length, or There is a structure in which the end surface of the roof cover is pivotally mounted on a horizontal rotation axis, or a double-lid structure similar to a double-fold door on the end surface.
[0003]
[Problems to be solved by the invention]
However, if there is an excessively large gap between the lid surface and the housing, rainwater is likely to be blown in, which may cause rain leakage. When the end is a slide cover, the slide cover is in full contact with the inside of the cover body, so it can slide only under a substantially equal pressing force in the cover longitudinal direction. Since the adjacent casing is covered with the part, one casing comes into contact with the casing change, and stress in the oblique direction is generated on the cover, which may make it difficult for the slide cover to slide smoothly. was there.
In the case of the upper and lower rotary lids, the rotation axis is exposed to the outside, and there is a structural difficulty in waterproofing the rotation shaft portion. In addition, the double-opening lid has an overlapping structure, which causes problems such as a complicated structure.
[0004]
The present invention solves the above-mentioned problems and, at the same time, based on a unique viewpoint different from that of the conventional configuration, reliably adapts to frame fluctuations, particularly sliding in the parallel direction of adjacent frames, by a combined movement of slide and rotation. Therefore, the end structure of the expansion joint having a simple structure is to be realized.
[0005]
[Means for Solving the Problems]
In order to solve the above-described problems, the present invention continuously connects the end cover so that it can protrude from the cover end through the guide in a state of being biased in the cover direction, and the guide and the end cover protrude. It is connected by a vertical axis orthogonal to the direction, and the end cover is configured to rotate relative to the sliding of the housing so that it can protrude with respect to the cover. In addition to the above configuration, the end cover side can be slid in the width direction of the end cover surface so that the end cover is continuously provided, and the end cover rotates in response to the sliding of the housing. It is also characterized by being able to protrude with respect to the cover.
[0006]
In the above configuration, a rail portion in the cover width direction is formed on the back surface of the end cover, a movable body that is slidable is mounted thereon, and a rotation formed at one end portion of the guide on a bearing formed on the movable body or rail portion. The shaft is connected, a support part in the longitudinal direction is formed on the inner side of the cover, the guide is slidably supported by the support part, and the end cover is urged toward the cover. Can do.
[0007]
In the above, the guide can be provided at least on both sides in the width direction of the end cover, and at least one end cover side connecting portion can be slid in the width direction.
In the above configuration, the support frame formed with support portions for receiving guides at both ends of the frame body along the inner surface of the cover is fixed to the inside of the cover end portion, and the end cover is in contact with the support frame. Thus, it can be arranged so as to fit inside the cover end, and a packing material may be interposed at the joint between the support frame and the end cover.
The cover is a roof expansion joint cover, and is most preferably constructed so that the end cover is installed with the upper end of the wall expansion joint cover covered.
[0008]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, the form of the Example as an example of this invention is demonstrated with drawing shown as the edge part structure of a roof expansion joint. Note that the expansion joint of the present invention closes the frame gap and is not limited to the roof, but can be applied to other structural parts.
[0009]
1 to 3 show the end joint structure of the expansion joint, FIG. 4 shows the installed state, and FIGS. 5 to 8 show the state corresponding to the variation of the housing. The component 1 is the cover, 2 is the support frame, 3 is The end cover 4 is a guide.
The cover 1 is a cover that is attached to a holder of an expansion joint that is disposed across adjacent housings A and B, and is formed to have a configuration in which side surfaces 12 are folded down on both longitudinal sides of the upper surface 11. The connecting structure between the cover 1 and the casings A and B, the casing fluctuation absorbing structure of the connecting portion, and the like can be configured in the conventional configuration and other arbitrary configurations, and thus are not illustrated.
[0010]
The support frame 2 is a reinforcing material disposed along the inner side of the end portion of the cover 1, and the support portions 22 contacting the cover side surface 12 are bent at both ends of the upper surface portion 21 along the inner side of the cover upper surface 11. The support portion 22 is formed with a through support hole 23 that supports the guide 4 in the cover direction (cover longitudinal direction) so as to be slidable while maintaining a fixed orientation, and the support frame 2 extends from the edge of the cover 1. The cover 1 is fixed to the cover 1 with a screw or the like at a slightly inward position. In the figure, the support hole 23 has a configuration in which through holes are provided in two parallel pieces bent in parallel at an appropriate interval, but may be arbitrarily configured.
[0011]
The end cover 3 has a rail 32 in the cover width direction projecting from the back surface of the cover surface 31 that fits into the end surface of the cover 1 and moves in an appropriate length that can slide in the cover width direction. The body 33 is fitted, and the moving body 33 has such a length that one end can protrude to the side of the cover surface 31, and a vertical bearing (vertical hole) 34 is formed at one end to contact the rail portion 32. An uneven strip in the width direction of the cover is formed on the rail, thereby stabilizing the slide fitting state, and a vertical bearing (vertical hole) 35 is formed on the other end of the rail portion 32 in the direction opposite to the one end. is there.
[0012]
The guide 4 is provided with a bent portion 41 bent in the lateral direction at the front end portion of the straight rod body longer than the assumed variation of the body, and a vertical axis 42 serving as a rotating shaft bent at the front end portion is formed. It has become.
Reference numeral 43 denotes a coil-shaped compression spring as an urging member, which is loosely attached to the straight bar portion of the guide 4 and the spring 43 is removed by fixing the pin-like locking member 44 to the guide end portion. The guide 4 is given a biasing force of a spring while being locked so as not to come off. Reference numeral 45 denotes a locking ring that is inserted into the vertical bearings 34 to 35 after the vertical axis 42 is inserted and fixed to the front end of the vertical axis.
[0013]
The end structure of the expansion joint is as follows. The support frame 2 with packing 24 is integrally fixed to the inside of the end portion of the cover 1 with screws or the like, and the guides 4 are respectively inserted into the support holes 23 of the support portions 22 and 22 at both ends from the outside of the cover end surface. The springs 43 are respectively attached from the original end, compressed and locked by the locking member 44, and the guides 4 and 4 are each given a biasing force toward the inside of the cover. The vertical axis 42 at the tip of the guide 4 is pivotally attached to the vertical bearing 35 at the end of the rail portion 32 of the end cover 3 and locked by the locking ring 45, and the vertical axis 42 at the tip of the other guide 4 is fixed to the end cover 3. The movable body 33 is pivotally attached to the vertical bearing 34 and is locked by a locking ring 45, and the end cover 3 is closely fitted inside the end of the cover 1, and the end cover 3 biases the spring 43. It receives and press-contacts with the packing 24 of the support frame 2, and it is comprised so that a reliable cover function may be fulfill | performed. Note that the above does not indicate an attachment procedure, and the procedure may be arbitrary.
[0014]
The end portion of the expansion joint absorbs the housing fluctuation as follows. That is, in the normal state, neither the casings A and B are in contact with the end cover 3 as shown in FIGS. 5 and 7, but when the casings A and B slide in the direction along the casing gap, 6 and 8, the end cover 3 hits against the end cover 3 and receives this pressing force, so that one end of the end cover 3 rotates like a revolving door with the other end as a rotation axis. In this rotation, the vertical axis 42 formed by sliding the moving body 33 with respect to the rail portion 32 while pulling out the guide 4 and bending it laterally from the tip of the guide is the rotational axis. Thus, the other end portion has a vertical axis 42 at the tip of the guide 4 on the side as a rotation axis, so that the end cover 4 can be smoothly rotated. The same applies to the sliding of the other housing A.
When the casings A and B return to the normal position, the guide 4 receives the urging force of the spring 43 and moves backward in the cover, and the moving body 33 slides back, so that the end cover 3 is not automatically displaced. It will fit within the end of the cover 1.
[0015]
The above-described configuration can be modified as appropriate, and the present invention includes this. For example, one or more guides are appropriate, and the guides can be disposed in the middle part. In addition, a spring may be provided separately from the guide without providing the spring in the guide. The spring is not limited to a coil spring.
[0016]
【The invention's effect】
As described above, according to the present invention, even when the adjacent housing slides due to an earthquake or the like and hits the end cover of the expansion joint cover, the end cover is guided to the guide by receiving this pressing force, and the cover end portion It is possible to provide an end structure of an expansion joint with a simple configuration that can project freely outward from the outside, and can be automatically restored into the cover end by an urging force, and can be stably projected and restored by sliding and rotating. it can.
By making the connecting portion on the end cover side slidable in the width direction of the end cover surface, the projecting and restoring action of the end cover, that is, the follow-up ability to the variation of the housing can be more smoothly and stably stabilized.
By connecting the guide and the slidable moving body via the rotation shaft, the end cover can be restored without being displaced and the cover end can be sealed. Since a packing can be interposed between the joint portions of the two, an end structure that does not allow rainwater to enter can be obtained.
Moreover, since the said structure can be built and constructed in a factory, workability can be simplified and efficiency can be improved.
[Brief description of the drawings]
FIG. 1 is an exploded perspective view showing an end structure of an expansion joint according to the present invention.
FIG. 2 is an exploded perspective view showing the combined state of FIG.
3 is an exploded perspective view showing a combined state seen from another direction of FIG. 2; FIG.
FIG. 4 is a cross-sectional view in the width direction of the cover showing an installation state.
FIG. 5 is a partial cross-sectional view showing the end structure cut in the longitudinal direction of the cover.
6 is a partial cross-sectional view showing a variation state of the end cover of FIG. 5. FIG.
FIG. 7 is a partial cross-sectional view showing the end structure cut horizontally in the cover longitudinal direction.
8 is a partial cross-sectional view showing a variation state of the end cover of FIG.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Cover 11 Upper surface 12 Side surface 2 Support frame 21 Upper surface part 22 Support part 23 Support hole 24 Packing 3 End cover 31 Cover surface 32 Rail part 33 Moving body 34, 35 Vertical bearing 4 Guide 41 Folding part 42 Vertical axis 43 Spring 44 Locking member 45 Locking rings A and B

Claims (4)

The end cover is connected in a slidable manner from the end of the cover via a guide in a state of being biased in the cover direction, and the guide and the end cover are connected by a vertical axis perpendicular to the protruding direction . An end portion structure of an expansion joint having a configuration in which the end cover is rotated corresponding to sliding and can protrude from the cover. The end cover is connected to the end of the cover so as to protrude from the end of the cover via the guide in a state of being biased in the cover direction, and the guide and the end cover are connected to each other with a rotating portion. The side connecting portion is slidable in the width direction of the end cover surface, and is connected to the end cover, and the end cover can be rotated to protrude from the cover in response to the sliding of the housing. An end structure of an expansion joint having A rail part in the cover width direction is formed on the back surface of the end cover, and a movable body that can be slid is mounted on the rail part. A longitudinal support portion is formed on the inner side of the cover, the guide is slidably supported by the support portion, and the end cover is biased in the cover direction. The end structure of the expansion joint described in 1. A support frame formed by supporting portions for receiving guides at both ends of the frame body along the inner surface of the cover is fixed to the inner side of the cover end, and the inner side of the cover end is in contact with the end cover. The end part structure of an expansion joint according to any one of claims 1 to 3, wherein the end part structure has a configuration in which a packing material is interposed at a joint portion between the support frame and the end cover.

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