JPH0245362Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention uses an expansion joint, in particular, fixing support members on building frames that are placed opposite each other at a fixed interval, and mounting a cover member on these support members. In addition, regarding an expansion joint in which a cap is provided on the opposite side of the cover member of each support member, an expansion joint is particularly provided that is easy to attach the cover member and cap, has excellent workability, and is advantageous in terms of material economy. The purpose is to propose a joint.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

First, in FIG. 1, the symbol A indicates an expansion joint. This expansion joint A is located at parapet 12 of the opposing building frame.
It was constructed on top of Parapet 1.
2, 12, a spring member 15 mounted on the support members 14, 14 at a constant interval, and a cover member 16 held on the spring member 15, Furthermore, a capacitor B is locked and fixed on the support member 14. The support member 14 is an elongated member including an upright wall 14a and a bottom edge 14b projecting downward and outward from the upright wall 14a, and is made of a shaped material of aluminum alloy or other metal. A locking portion 14c is formed on the inside of the upper end of the standing wall 14a, and an airtight material fitting groove 18 is formed on the outside, and a locking groove 19 that opens downward is formed below the fitting groove 18. Projections 20, 20 protrude from the outer inner wall of 19. Also, the bottom edge 1
A locking receiving part 21 is formed at the tip of 4b, and a presser piece 22 is formed inside the locking receiving part 21. The outer surface of the lock receiving portion 21 is formed into a tapered shape. In addition, 23 is a water stop plate holding groove. Mounting hardware 13 protrudes from the parapet 12 at regular intervals, and a long angle member 10 is welded to the metal member 13, and the bottom edge 14b is screwed to the angle member 10 welded and fixed onto the parapet 12. Fixed.

Next, a cover member 16 that covers the gap S between the two bodies 12, 12 is displaceably mounted via a predetermined number of short spring members 15.
A protruding locking portion 16a for locking the spring member 15 is protruded at a predetermined height on the rear surface, approximately at the center, and the tip 16b of the locking portion 16a has an arc-shaped cross section and a chevron-shaped cross section. A locking surface having a sawtooth cross section is formed on both sides of the locking portion 16a. Among these locking surfaces, the most protruding saw blade surface is formed to be larger than the other portions by a predetermined amount to actively prevent the spring member 15 from coming off. As shown in FIG. 5, the spring member 15 is mainly composed of two spring plate parts 15a and 15b having a substantially V-shaped cross section.
The upper portions of the inner plate portions 15b facing each other are fixed to each other by rivets, screws, spot welding, etc. to form an integral body. The tip of the joint between the spring plate parts 15a and 15b has an insertion opening into which the locking part 16a of the cover member 16 is inserted, and the locking part 16a is locked on both sides of the opening edge of the insertion opening. A receiving portion 50 is formed which has a locking gourd 50a that elastically engages with the stop surface.
The tips of the outer plates of both spring members 15a and 15b have insertion openings into which the locking parts 14c and 14c of both support members 14 and 14 are inserted, and locking parts are provided on both sides of the opening edges of the insertion openings. Reception portions 51 and 52 are formed having locking gourds 51a and 52a that are elastically engaged with the locking surfaces of 14c and 14c, respectively. Further, in a state where the locking portion 16a of the cover member 16 and the receiving portion 50 at the center of the spring member 15 are elastically engaged,
The upper surfaces of the receiving parts 51 and 52 at both ends of the spring member 15 are elastically pressed against the back surface of the cover member 16, and
The receiving portions 51 and 52 at both ends of the spring member 15 are securely and elastically engaged with the locking portions 14c and 14c of both the supporting members 14 and 14, and in this state, the cover member 16 is held by the spring force of the spring member 15. The spring member 1
A spring force of 5 is set. Moreover, in the state where the cover member 16 is attached, both the main bodies 12 and 1
2 changes and the spring member 15 elastically expands and contracts, both plate portions 15a, 15 in the same spring member 15
In order to prevent stress from concentrating and acting on the V-shaped bent portion of b, the bent portions of both spring plate portions 15a and 15b have an elastic cross section approximately Ω-shaped, corrugated plate-like, etc. to disperse stress. Deformed portions 15d and 15e are formed to improve sustainability of spring force, durability, etc. When installing the cover member 16, first, the locking portion 16a of the cover member 16 and the receiving portion 50 at the center of the spring member 15 are elastically engaged, and then the cover member 16 is supported on both sides. By pressing toward the members 14, 14, the locking portions 14c, 14 of both supporting members 14, 14
The receiving portions 51, 5 at both ends of the spring member 15 for c.
2 are elastically engaged. At this time, an airtight material 24 is fitted into the fitting groove 18 of the support member 14 and closely contacts the back surface of the cover member 16 to prevent wind and rain from blowing in. Since the cover member 16 with the above structure is not fixed by a spring, there is no risk of wind and rain entering through the spring-fastened part, and the elasticity of the clip 15a prevents the parapets 12 of both frames from settling unevenly.
It remains stable even if it changes in different directions due to vibrations, etc.

Next, a capacitor B is held on the outside of the support member 14. This Kasagi B has an inclined oblique edge 25
An upright edge 25a with a bent tip is formed at one end, and a hanging edge 25b is formed at the other end,
A protrusion 26 having a locking part 26a at the tip is formed to protrude inward from the upper part of the hanging edge 25b, and is made of a long metal shape material such as aluminum or an alloy thereof. When attaching and holding the cap B to the support member 14, first the upper end of the upright edge 25a is fitted into the locking groove 19 and then the hanging edge 25b of the cap B is pressed against the support member 14. While pressing the lower inward protrusion 26
The locking portion 26a is resiliently locked to the locking receiving portion 21 of the bottom edge 14b. At this time, the outer surface of the locking receiving part 21 is formed into a tapered shape, and the tip of the locking part 26a of the inward protrusion 26 is formed diagonally upward, so that the protrusion 26 follows the tapered surface. and is guided to the locking receiving part 21. Therefore, the two are smoothly locked. Locking portion 2 locked with locking receiving portion 21
Since the tip of the inward protrusion 26 is held down by the holding piece 22, even if external pressure is applied from the outside end of the capboard B due to strong winds, etc., the tip locking portion 26a of the inward protrusion 26 will not come off from the locking receiving portion 21. , the locked state is stably maintained. In this way, the caps B are successively arranged in the longitudinal direction. Note that the protrusion 26 is
It may be the same long length as Kasagi B, but it may be formed with notches at appropriate intervals. In addition, since the upright edge 25a contacts the inner wall of the locking groove 19 via the protrusion 20, rainwater is not led inward due to capillary action, and furthermore, an air chamber is formed between the protrusion 20 and the inner wall of the locking groove 19. Since the pressure is equal to the blowing pressure of wind and rain, blowing inward is prevented.
Furthermore, the side end portion of a plate-shaped water stop plate 27 made of rubber or plastic is fitted into the water stop plate holding groove 23 provided at the base of the support member 14 . , 14, and its center part hangs down into the gap between the frames. For this reason, even if rainwater leaks from the expansion joint A, the water stop plate 27 receives this rainwater and guides it to both ends to drain it, so that rainwater is reliably contained.
Therefore, according to the above expansion joint, there is no need to interpose parts such as a board member between the cover member 16 and the spring member 15, and the number of parts can be reduced accordingly, simplifying the structure. Can be done. Furthermore, when installing the cover member 16 between both support members 14, 14, first the cover member 1
By elastically fixing the spring member 15 to the back surface of the spring member 6 and then pressing the cover member 16 toward the support members 14, 14, both ends of the spring member 15 and the support member 14,
The locking portions 14c, 14c disposed on the cover member 14 and the receiving portions 51, 52 are elastically engaged with each other, thereby making it possible to easily and quickly attach the cover member 16. It is possible to reduce manufacturing and construction costs. Furthermore, since there is no need to make mounting holes corresponding to fastening members such as screws in the plate surface of the cover member 16, it is possible to improve the rain protection and the appearance. Moreover, according to the expansion joint, the capacitor B can be directly locked and fixed to the support member 14, and can be easily and reliably attached. Therefore, unlike in the past, there is no need to fix a special Kasagi holding member on the frame, making it easier to handle, reducing construction work, and reducing the number of parts in the device configuration. . Note that the lock receiving portion of the support member 14 and the locking portion of the capacitor B may have any shape as long as they can lock each other.

Next, FIG. 2 shows an example of an expansion joint. In this example, the support member 14 has an upright wall 14a and a bottom edge 1, as in the example shown in FIG.
4b, the locking receiving portion 21 provided at the tip of the bottom edge 14b is formed in a sawtooth shape. The structures of the spring member 15 and the cover member 16 are the same as those in the illustrated example above, so they are indicated by the same reference numerals.
Explanation will be omitted. The same applies to the following examples.
A Kasagi B is locked and fixed to the support member 14. Kasagi B includes an upstanding wall 25a with a bent tip at one end of an inclined edge 25, and a hanging edge 25b at the other end, and an engagement groove 30 that opens upward inside the lower end of the hanging edge 25b. This engagement groove 30 has locking members 3 at regular intervals.
1 are attached together. This locking member 31 is preferably made of a short elastic metal material, and has a protrusion 31b protruding inwardly from the upper end of a rising portion 31b along the back side of the hanging edge 25b of the capboard B, and a protrusion 31b at the tip thereof. A locking portion 31c is formed diagonally downward, and a curved portion 31d extends diagonally upward from the locking portion 31c.
The lower end of the locking member 31 is fitted into and protrudes into the engagement groove 30 at the lower end of the cap B. Kasagi B with the locking member 31 integrally connected to the back side as described above
When attaching the cap to the support member 14, first, the upright wall 25a at one end of the cap B is elastically fitted and locked into the locking groove 19, and then the hanging edge 25b is pressed inward. When the locking member 31 is pressed inward in this way, the curved piece 31d of the locking member 31 hits the tip of the bottom edge 14b and is forcibly pushed upward, so its elastic restoring force causes the locking portion 31c to The locking of the locking receiving part 21 becomes strong, and the bottom edge 14b
Since the locking receiving part 21 of the bottom edge 14b is strong and the locking receiving part 21 of the bottom edge 14b is serrated, it can be held in the optimum locking receiving part 21. However, at the time of this locking, the tip of the curved piece 31d elastically abuts the back surface of the beveled edge 25 of the capstone B, so that the locking portion 31
c is pressed downward to ensure a locked state and will not come off due to external force. Further, the tip of the upright edge 25a of the Kasagi B is fitted into and locked in the locking groove 19 of the support member 14, and at this time, the protrusion 20 protruding into the groove 19 comes into contact with the surface of the upright edge 25a of the Kasagi B. death,
Due to this contact, an air chamber is formed between the protrusion 20 and the raised edge 25a. For this reason, rainwater flows into Kasagi B.
from the locking groove 19 on the surface of the support member 1.
Even if an attempt is made to enter the inside of the air chamber 4, the air chamber will hit the air chamber, so the indoor pressure will be equal to the blowing pressure, and no capillary action will occur, so wind and rain will not be able to enter any further.

As mentioned above, the protrusion 31b and the locking part 3 are attached to the Kasagi B.
The same effect as that shown in the above illustrated example can be obtained by integrally combining the separate locking members 31 having 1 and having a configuration in which the support member 14 is resiliently locked by this combined body. be able to. In this way, the locking part of Kasagi B is not necessarily the same as shown in Figure 1.
It does not have to be formed integrally with the

Furthermore, FIG. 3 shows another example of an expansion joint, and this expansion joint A is almost the same as the one shown in FIG.
2, 12, locking receivers 45 are provided protrudingly on the bottom edge 14b, spring members 15 are installed at regular intervals on the support member 14, and a cover member 16 is further mounted on the holder 15. The supporting member 14 has a cap B and a drain joint and a cap holder 4 integrally connected to the cap B.
It is attached via 6. The cap B is an elongated member that includes an inclined bevel 47a and a hanging edge 47b that hangs down from one end of the beveled edge 47a, and is continuous in the longitudinal direction. The other end of the beveled edge 47a is raised. Further, an engagement groove 48 is provided at the lower end of the hanging edge 47b. This draining cap B is connected to the support member 14 via a drainage joint and cap holder 46 that is integrally attached to the cap B.
It is locked and fixed. The drainage joint/kasagi holder 46 includes a main body 46a having an outer shape approximately equal to the inner shape of the above-mentioned capacitor B;
The protrusion 46b protrudes almost inward from the beveled edge 44 in a bent shape and forms a locking portion 49 at the tip thereof, and a tapered portion 49a is formed at the tip of the locking portion 49. , and a locking surface 4 at the rear end.
9b is formed. The lower end of the main body 46a is engaged with the engagement groove 48 on the back side of the lower end of the cap B, and is attached to the continuous portion of the cap B, that is, the back side of adjacent caps. The combination of the Kasagi B and the drainage joint and Kasagi holder 46 is attached to the support member 14.
When attaching the cap to the top, the upper end of the cap B is locked in the upper locking groove 18 of the support member 14, and then the lower part of the cap B is pressed to engage the locking part 49 of the protrusion 46b. The stop surface 49b and the lock receiving portion 45 of the support member 14 may be locked in a resilient manner. This locking is performed smoothly by the tapered portion 49a at the tip of the locking portion 49, and the upper locking groove 49b of the Kasagi B is
and the lower locking receiving part 45. Note that when the drain joint/kasagi holder 46 and the draining cap B are integrally connected in this way and the connected body is locked to hold the cap B on the supporting member 14, the adjacent cap At the same time, it is possible to obtain the effect of preventing rainwater from entering between the roof and the Kasagi. In this case as well, the cap B is locked and fixed to the support member 14 integrally with the drain joint and cap holder 46.

Furthermore, FIG. 4 shows another example of an expansion joint. In this expansion joint A, one support member 14 has approximately the same configuration as that shown in FIG. 3, and is mounted on the same frame 12. It is fixed in place. In contrast, the other supporting member 1
4' is fixedly fixed to a frame 12' that is perpendicular to the mounting surface of the frame 12 of the one support member 14.
Examples of such frameworks that are perpendicular to each other include a floor and a wall, a wall and a wall, a roof and a wall, and the like. An engaging portion 14'd is provided at one end of the supporting member 14', and a locking portion 14'c is provided at the other end, and a water stop plate 27 is held between the supporting member 14' and one supporting member. A rising portion 16'c is formed on the body 12' side of the cover member 16', an airtight material 53 is fitted on the back side of the tip, and an engaging portion 54 is formed near the rising portion 16'c. Furthermore, a locking portion 16'a is formed on the back side. Therefore, in this case as well, the cover member 16' has its engaging portion 54 engaged with the engaging portion 14'd of the support member 14', and is also connected to the support member 14 via the spring member 15 as in the above example. ,1
4'. At this time, the airtight material 53 comes into close contact with the surface of the frame 12' to prevent rainwater from entering. In this example, the Kasagi configuration is approximately the same as the example in FIG. 3, so the same symbols are used to indicate it.
The explanation will be omitted.

As explained in detail above, the expansion joint according to the present invention has a length-shaped support member fixedly fixed to both building frames facing each other at a distance, a cover member provided on these support members, In the expansion joint in which at least one of the support members is provided with a cap, the back surface of the cover member is elastically engaged with a spring member that can be elastically expanded and contracted at approximately the center thereof, and the support member is connected to an upright wall. forming a substantially L-shape from the bottom edge, and disposing a receiving portion and a locking portion that are respectively engaged with each other on both ends of the spring member and the upright wall of the supporting member opposing thereto; A locking groove and a locking receiving portion are formed on the bottom edge of the supporting member on which the cap is provided, and the vertical wall formed at one end of the cap is engaged with the locking groove of the supporting member. and a projection having a locking portion at the tip protrudes from the back side of the other end of the cap, and the locking portion of the projection is resiliently engaged with a locking receiving portion on the bottom edge of the support member. The cap is stopped and held on the support member.

Therefore, there is no need to interpose parts such as a board member between the cover member and the spring member, and the number of parts can be reduced to that extent and the structure can be simplified. Furthermore, when attaching a cover member between both support members, first, a spring member is elastically attached to the back surface of the cover member, and then the cover member is attached to a locking portion provided on the support member and the receiving member. The parts are elastically connected to each other.
As a result, the work of attaching the cover member can be carried out easily and quickly, and the trowel can be manufactured and installed at reduced costs. In addition, since there is no need to make mounting holes corresponding to fastening members such as screws in the plate surface of the cover member, it is possible to improve rain protection and appearance. In addition, the cap can be held directly by the support member, and there is no need to attach a cap support member to the building frame as in the past, so it is easy to handle, has excellent construction properties, and is easy to construct the device. Since the number of parts can be reduced, it is very useful in terms of material economy.

[Brief explanation of the drawing]

FIG. 1 is a cross-sectional view of an expansion joint according to the present invention, FIGS. 2, 3, and 4 are cross-sectional views of expansion joints showing other examples, and FIG. 5 is a cross-sectional view of an expansion joint according to the present invention. It is a perspective view of a member. Code A...Expansion joint, B...
...Kasagi, 14a... Standing wall, 14b... Bottom edge, 1
5... Spring member, 16... Cover member, 26,3
1b, 46b... protrusion, 46... Kasagi holder.

Claims (1)

[Claims for Utility Model Registration] Elongated support members are fixed and fixed to both building frames facing each other at a distance, a cover member is provided on these support members, and a cape is provided on at least one of the support members. In the expansion joint, an elastically extensible spring member is elastically attached to the back surface of the cover member at approximately the center thereof, and the support member is formed into an approximately L-shape from an upright wall and a bottom edge. A receiving part and a locking part which are respectively engaged with each other are provided on both ends of the spring member and the standing wall of the support member facing thereto, while the supporting member on which the cap is provided is provided with a receiving part and a locking part. A locking groove is formed on the upright wall and a locking receiving part is formed on the bottom edge, and the upright edge formed at one end of the cap is locked in the locking groove of the upright wall of the support member, and the other end of the cap A projection having a locking portion at the tip protrudes from the back side of the holder, and the locking portion of the projection is resiliently locked to a locking receiver on the bottom edge of the support member to attach the cap to the support member. An expansion joint characterized by being held at the top.