JPH045609Y2 - - Google Patents

Description

[Detailed description of the invention] (Industrial application field) The present invention closes the gap between adjacent building frames,
This invention relates to an expansion joint that can accommodate the narrowing of the gap between both body parts and absorb the deviation between them.

(Prior art) When connecting gaps between building frames, such as roofs to roofs, roofs to walls, ceilings to ceilings, etc., by directly fixing rigid bodies, the building frames may be damaged due to expansion and contraction of the building, changes in the ground, etc. It becomes impossible to respond to changes.

Taking these points into consideration, for example, Japanese Patent Application Laid-Open No.
As in No. 21849, a construction method is used in which a cover member that closes the gap is fixed via a spring member. Similar methods are widely used, as they are also published in suite catalogs published in 1977 and later editions.

(Problem to be solved by the invention) However, in all conventionally known methods, the cover member is fastened in the direction of the body using spring pressure, so it is difficult to simplify the fastening work. However, there was a problem in that it became impossible to securely secure the fixed state and to maintain it stably. For example, in the case of the patent publication mentioned above, with the spring member attached to the back surface of the cover member, the cover member is pressed from the front side to the fixing member on the body side, and the receiving portions at both ends of the spring member are placed above the fixing member. Since the structure is designed to elastically lock onto the locking part that protrudes from the top, it can be used in cases where at least one of the building blocks has moved and the surfaces of both building blocks are not located on the same flat surface, or if the gap between the building blocks is In the case of meandering, check if at least one receiving part and the locking part are not elastically engaged.
Even if this is done, there is a high possibility that the engagement will be insufficient and unstable, and furthermore, this engagement cannot be visually confirmed. In such an engaged state, the cover member and the spring member are likely to come off the fixing member due to external pressure such as strong winds. Further, since the spring member is compressed and engaged, the width of the gap that can be engaged is naturally limited when the spring action is taken into account, and the allowable range is not very wide.

Further, the conventional spring member has only two degrees of freedom to accommodate variations in the width of the gap between the building blocks or in the vertical direction, and cannot necessarily absorb the deviation when the building blocks shift in the parallel direction.

The present invention solves these drawbacks and makes it possible to securely fix the spring member to the building frame, and at the same time, visually confirm the fixed state, and to provide a sufficiently wide tolerance range for any fluctuations in the building frame, such as deviations in the parallel direction. It is an object of the present invention to provide an expansion joint which can be freely adapted to the width of the vehicle and which can be fixed even if the gap between the building blocks is meandering.

(Means for Solving the Problems) In order to achieve the above object, the present invention has a fixing member fixed to the building frame side, and a locking part to the fixing member at both ends that springs in the width direction of the gap between the building blocks. In an expansion joint formed by combining a gap adjustment member and a cover member that covers the gap between the building blocks, a receiving part is formed in the center to lock a locking protrusion provided on the back surface of the cover member. , forming a connection part with a spring member described below below,
and a cover member holder in which both outer sides of the plate ends extending in the direction of the frame gap width from both sides of the receiving part are bent upward to form cover member back pressure contact parts, and both outer ends of a substantially W-shaped spring member. A substantially flat surface of a suitable width is formed on one side, and a locking part that protrudes downward in a W shape and engages with a locking part provided on the fixing member is formed at the tip thereof, and the connecting part and the above-mentioned connecting part are formed in the center part. The spring member forming the connection receiving portion to be connected is characterized in that the connection portion and the connection receiving portion are rotatably fixed to each other to constitute a gap adjustment member.

In this case, it is preferable that the spring member is a combination of two members that are substantially symmetrical with respect to the connection receiving part, and that they are overlapping and fixed at the connection receiving part.

(Example) Hereinafter, the present invention will be explained with reference to drawings shown as examples.

In Figures 1 and 2, 1 and 2 are the main body, A
is a gap between both bodies, and the expansion joint consists of fixing members 3 and 4, a gap adjusting member 5, and a cover member 6. The fixing member 3 is attached to the frame 1
A fixing piece 34 is fixed to the upper surface with a bolt 7, and a fastening part 31 has an upward U-shape at the tip thereof and has engagement protrusions 32 and 33 formed opposite to each other at the inner end of the U-shaped opening. , has a water stop plate fastening part 35 on the lower side of the fastening part 31 into which the end of the water stop plate 8 made of a suitably flexible material such as synthetic resin is fitted, and the fixing member 4 is also fastened. 41 and has the same configuration as above.

The gap adjustment member 5 is composed of a cover member holder 50 and a spring member 55 rotatably fixed to the cover member holder 50, and the cover member holder 50 is fitted with a cover member 6 to be described later. A receiving portion 51 has an inwardly formed elastic claw for locking a locking protrusion 61, and extends substantially horizontally from the receiving portion 51 to both sides, and has a length spanning both ends of a spring member 55, which will be described later. and a substantially horizontal press-contact portion 5 whose plate end portion is bent upward to provide spring elasticity in the vertical direction.
2, 52, a receiving part for the locking protrusion 61 is formed below the receiving part 51, and a connecting part 54 for rotatably connecting the spring member 55 by a rivet 53 or the like is provided at the bottom thereof. However, a plurality of reinforcing ribs (two in the figure) are formed as continuous strips extending between the connecting portion 54 and the left and right plate ends without crushing the bent portion.

Further, the spring member 55 is composed of a pair of spring bodies 56, 56 having substantially the same shape, and the spring body 56 is connected to a connecting receiving part 57 which is rotatably connected to the connecting part 54 by a rivet 53 or the like below the connecting part 54. , a spring body 56 extending in a V-shape or expanded U-shape from the side of the connection receiving portion 57, a substantially horizontal flat surface 58 projecting from the end of the spring body 56, and a tip of the flat surface 58. The fastening portion 3 of the fixing members 3 and 4 protrudes downward from the
1 and 41, respectively.

The cover member 6 is an elongated body having a width sufficient to cover the gap A in the direction parallel to the gap (longitudinal direction of the gap), protrudes from the back surface of the central portion at appropriate intervals, and is attached to the cover member holder 50. A protrusion is formed on the side surface to engage with the elastic pawl of the receiving part 51 to prevent the inserted state from being removed when it is inserted into the receiving part 51,
The locking protrusion 6 has a length sufficient to fit into the receiving portion 51 even if the cover member 6 is displaced in the vertical direction.
1. It has joint parts 62 and 63 to the frame bodies 1 and 2, with both ends bent downward and sealing members attached to the lower folded parts.

FIG. 3 schematically shows a construction example in which the expansion joint is installed between the building blocks 1 and 2, and the fixing members 3 and 4 are attached to the fixing parts 31 and 41 of the building blocks 1 and 2 in the gap A. In the state where the locking portions 31 and 41 are fixed so as to protrude to the side, the distance between the locking portions 31 and 41 is the same as the locking portions 59 and 5 of the spring member 55 in the free state as shown in A.
This is an example of a case where the distance is narrower than the distance between 9. In this case, the spring member 55 is configured such that one of the locking portions 59 is elastically engaged with the locking portion 41 as shown in (B), and then the spring members 56 are compressed by being pressed or pulled in the direction of the arrow. The other locking portion 59 may be elastically engaged with the locking portion 31, and then the locking protrusion 61 of the cover member 6 may be fitted and locked into the receiving portion 51.
The cover member 6 has a cover member holder 50 on its back side.
At the same time, the joint parts 62 and 63 are respectively joined to the upper surfaces of the frames 1 and 2 to which the fixing members 3 and 4 are fixed.

Therefore, in the expansion joint of the present invention, since the cover member holder 50 has a length that spans both ends of the spring member 55, the receiving part 51 does not sink when the cover member 6 is attached, and the engagement is prevented. The locking protrusion 61 can be reliably fitted into the receiving portion 51, and the locking portions 59, 59 of the gap adjustment member 5 can be securely and elastically engaged with the locking portions 31, 41 of the fixing members 3, 4, respectively. can be confirmed at a glance, and then the cover member 6 can be attached, so that the attached state of the cover member 6 becomes extremely stable.

Further, the plurality of gap adjustment members 5 are fixed to the fixing members 3 and 4.
Even if the gap A is meandering due to fluctuations in the frames 1 and 2 when the cover member 6 is fixed after being attached to each of the parts, the gap adjustment member 5 of the meandering portion may The receiving portion 51 is pushed or pulled to a position where the locking protrusion 61 can be inserted while further compressing one of the spring bodies 56, 56.
The locking protrusion 61 may be inserted by shifting the locking protrusion 61.
Regardless of the meandering of the gap A, the expansion joint can be installed.

Furthermore, when the frames 1 and 2 move in the frame gap width direction or the vertical direction, due to the male deformation of the spring bodies 56 and 56 of the gap adjustment member 5 and the displacement between the locking protrusion 61 and the receiving part 51. The cover member 6 can be stably placed on the gap A by absorbing the displacement between the frames 1 and 2, and as shown in FIG.
Even when the spring bodies 56, 5 are displaced in the parallel direction, the spring bodies 56, 5
6 undergoes torsional deformation and rotates in a deviated direction about the rivet 53, without transmitting the deviation to the cover member holder 50, and cooperates with the other plurality of cover member holders 50 to hold the cover. The member 6 is stably placed on the gap A.

Distortion between the frames 1 and 2 is absorbed by the fastening parts 31 and 41 by the spring members 55 and rivets 53, etc., based on the same principle, whether it is at the beginning of building construction or after the expansion joint is installed. Ru.

The above configuration can be applied to all of the gap parts of various structures, and FIGS. 5 and 6 each show an example thereof.

Fig. 5 shows an example in which the fixing member 4a and the gap adjusting member 5a are the same as those described above, but the fixing member 3a is bent at a right angle from the fixing piece to the frame side. A locking portion is formed at the end of the cover member 6a, and a joint portion of the cover member 6a in the lateral direction of the body is formed so as to abut in the lateral direction.

FIG. 6 shows fixing members 3b and 4 in the gap between the floors.
gaskets 9b, 9 between b and cover member 6b.
This is an example in which the gap adjustment member 5b is elastically engaged with the fixing members 3b and 4b in the same manner as described above, and both ends of the cover member 6b are fitted with gaskets 9b and 9b.
9b, the gaskets 9b,
9b is formed so as to overlap with the fixing members 3b, 4b, and the other ends thereof are fixed to the fixing members 3b, 4b.

(Effects of the invention) As described above, according to the invention, the cover member can absorb not only the fluctuation in the gap width direction or the vertical direction of the building structure, but also the displacement in the parallel direction of the building structure. It can be held stably.

Further, according to the present invention, since the plurality of gap adjustment members are attached to the fixing member and the cover member is fixed, regardless of the meandering of the gap,
All the gap adjusting members can be completely fixed to the fixing member, and the cover member can also be completely fixed to the gap adjusting member.

Furthermore, if the spring member is constructed from a pair of spring plates having the same shape, manufacturing costs including mold costs during manufacturing can be reduced.

[Brief explanation of the drawing]

Fig. 1 is a sectional view showing an embodiment of the expansion joint of the present invention with a gap adjustment member installed, Fig. 2 is an exploded perspective view, and Figs. 3 A, B,
C is a schematic cross-sectional view explaining the construction process of the expansion joint in Figure 1, Figure 4 is a schematic plan cross-sectional view showing the operating state, and Figures 5 and 6 are cross-sectional views of the installed state showing different embodiments. It is a diagram. 1, 2...Structure, 3, 4...Fixing member, 5...
Gap adjustment member, 6... Cover member, 31, 41...
...Locking portion, 50...Cover member holder, 51...
Reception part, 52... Pressure contact part, 54... Connection part, 55
... Spring member, 56 ... Spring body, 57 ... Connection receiving part, 58 ... Flat surface, 59 ... Locking part, 61 ...
Locking protrusion, A... gap.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) A fixing member that is fixed to the building frame, a gap adjustment member that springs in the width direction of the gap between the building blocks and has locking parts for the fixing member at both ends, and covers the gap between the building blocks. In an expansion joint formed by combining a cover member and a cover member, a receiving portion is formed in the center portion for locking a locking protrusion provided on the back surface of the cover member, and a receiving portion is formed below the receiving portion for locking a locking protrusion provided on the back surface of the cover member. A cover member holder that forms a connecting portion and that extends from both sides of the receiving portion in the direction of the body gap width by bending both outer sides of the plate end portion upward to form a cover member back pressure contact portion, and a substantially W-shaped Approximately flat surfaces of appropriate width are formed on the outer sides of both ends of the spring member, and a W-shaped locking portion that protrudes downwardly at the tip thereof and engages with a locking portion provided on the fixing member is formed, and at the center a spring member having a connection receiving part formed thereon which connects with the connection part, and the connection part and the connection reception part being rotatably fixed to each other to constitute a gap adjustment member. Expansion joint. (2) The expansion joint according to item 1, wherein the spring member is a combination of two members configured to be substantially bilaterally symmetrical with respect to the connection receiving portion, and the two members are superimposed and fixed at the connection receiving portion.