JPS6340632Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a rectangular assembly frame in which a hollow frame member is fitted and connected at a corner by a connecting block. The connection and fixation of the two is a tight connection structure using elastic engagement claws.

Recently, forming an assembly frame using aluminum hollow frame members and connecting blocks for corners has come to be widely used for joinery frames, window frames, and spacer frames for double-glazed glass. The frame structure is usually fixed by fitting a hollow frame member into the legs protruding in two directions from a corner connecting block, and fixing both with screws, or simply by press-fitting them. It was hot. However, these frame structures have disadvantages in that the screw fixing work is troublesome and that a gap remains between the frame member and the connecting block when they are press-fitted.

The present invention eliminates the need for conventional fixing with screws by fixing the fitting connection between the connecting block and the hollow frame member in the above-mentioned assembly frame by means of an elastic coupling means, making assembly easy, and reducing the gap. The present invention provides an assembly frame that allows accurate connection parts without any cracks.

That is, the present invention has a plurality of springs each having locking claws projecting outward arranged longitudinally on a pair of legs extending in two directions from the body as a connecting block serving as a corner of the assembly frame. On the other hand, the hollow frame member to be fitted to the leg piece is provided with a serrated concavo-convex portion of a fixed pitch in the longitudinal direction that engages with a locking pawl protruding from a spring piece disposed on the leg piece of the connection block. When a rectangular assembly frame is formed by both of them, any one of the plurality of locking claws provided on each leg piece is elastically engaged with the recess of the sawtooth uneven part. The spacing between the locking pawls is set to a distance that is a non-integral multiple of the fixed pitch of the sawtooth uneven portions so that the two can be tightly coupled.

Hereinafter, an example of a spacer frame for double-glazed glass shown in the drawings will be explained.

Figure 1 shows a hollow frame member B serving as a lower horizontal frame and a hollow frame member B' serving as a side vertical frame fitted to a corner connecting block A at one corner of the spacer frame according to the present invention. FIG. 2 is a perspective view showing the relative positions before connection, and FIG. 2 is a partially cutaway front view of one corner of the spacer frame in which each hollow frame member B, B' is fitted and connected to the connection block A. be.

The connecting block A has two leg pieces 3, 3' extending at right angles from the right-angled side surface 2 of the body 31 with a step 4 provided thereon.
Each leg piece 3, 3' has a through hole 5, 5 connected to the outer surface in the longitudinal direction via a partition 6, and two spring pieces 7 are provided on the outside of the through hole part 5, 5. , 7 are disposed to support both ends of each leg so as to be elastically bent inward, and locking claws 8, 8 are provided on the outer sides of approximately the center in the longitudinal direction of the spring pieces 7, 7 on the outer surface of each leg piece. It is provided so as to protrude outward from the.

The hollow frame members B, B' are shaped members having a hollow portion 10 into which the leg pieces 3, 3' of the connecting block A are slidably fitted, and as shown in FIG. 2, the leg pieces 3, 3'
When it is fitted, its tip abuts against the stepped portion 4. On the wall surface of the hollow part 10 of the hollow frame member B, with which the locking pawl 8 of the leg piece 3 comes into elastic contact, sawtooth-like uneven parts 11 having a constant pitch P are formed in the longitudinal direction. Since the serrated uneven portions 11 are not always formed in a constant positional relationship from the tip surfaces of the hollow frame members B and B', the troughs of the serrated uneven portions 11 that engage with the engaging pawl 8 are There is no guarantee that the hollow frame member B will always completely engage with the step part 4, and there is a drawback that the tip of the hollow frame member B often does not come into close contact with the stepped part 4, creating a gap. However, the present invention avoids this drawback by incorporating the above-mentioned method. The distance l between the two engaging claws 8, 8 is approximately 0.5 so that the distance l is a non-integer multiple of the fixed pitch p of the sawtooth uneven portion.
Assume that only the pitch is shifted.

That is, the length of the interval l between the two engaging claws 8, 8 with respect to the pitch P of the serrated uneven portion 11 is such that l=p (n±0.5), where n is an integer.

The above is a case where the number of spring pieces arranged is two, but if there are m spring pieces of 3 or more, by setting l=p (n±1/m),
In a state where the tip of the hollow frame member B is strongly press-fitted so that it is in close contact with the stepped portion 4 of the connecting block A, one of the engaging claws 8 is engaged with the sawtooth-shaped uneven portion 11 of the hollow frame member B.
It elastically fits into and engages with the holder, and holds and fixes the two irremovably unless an extreme pulling force is applied.

In this way, a spacer frame is obtained as a rectangular assembly frame by fitting and connecting the four corner connecting blocks A and the four hollow frame members B, B' of a predetermined length. FIG. 3 is a longitudinal cross-sectional view of a double-glazed glass product in which glass plates 20, 20 are bonded to both sides with an adhesive 21, sandwiching the spacer frame, and the periphery thereof is filled with a sealant 22. The vent hole 23 provided in 1 is for replacing the air in the internal space with dry air, carbon dioxide gas, etc. during the manufacture of double-glazed glass, and after replacing the gas, the vent hole 23 is sealed and sealed with a sealant. It is something.

The above-described embodiment is a spacer frame for double-glazed glass, but as shown in FIG. It can also be used in an assembled frame configuration, and the present invention can be applied not only to rectangular or rectangular frames but also to modified window frames, such as pentagonal or diamond-shaped rectangular frames.

With the above-described structure, the present invention allows the corner block and the hollow frame member to be tightly and securely fixed by simply fitting them together, simplifying the framing process and eliminating the need for conventional screw fastening work. Can be omitted,
The process can be made more efficient and materials can be saved.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, and FIG. 1 is a perspective view showing the relationship between the connecting block and the hollow frame member at one corner of a spacer frame for double-glazed glass, and FIG. 2 is a diagram showing the assembly of the spacer frame. A front view with a part cut away at one corner, Fig. 3 is a vertical cross-sectional view of the double-glazed glass constructed by sandwiching the above spacer frame, and Fig. 4 shows the case where the rectangular assembly frame of the present invention is incorporated into a fitting. It is a front view. 1... Body part, 3, 3'... Leg piece, 4... Step part,
5...Through hole, 6...Bullet, 7...Spring piece, 8...Latching pawl, 10...Hollow part, 11...Sawtooth uneven part, A...Connection block, B...Hollow Frame member, p...Pitch, l...Latching pawl spacing.

Claims (1)

[Scope of utility model registration request] A pair of leg pieces 3, 3' extending in two directions from the body 1
Each leg piece 3, 3' has a
A corner connecting block A having a plurality of inwardly elastic spring pieces 7 having locking claws 8 protruding from the side surfaces and arranged in the longitudinal direction of the legs, and a leg piece 3 of the connecting block A. , 3' has a serrated concavo-convex portion 1 with a fixed pitch P that engages with the locking pawl 8.
1 are formed in the longitudinal direction of the hollow frame members B., B', and the spacing l between the locking claws of the plurality of spring pieces 7 provided on the respective leg pieces 3, 3' corresponds to the serrated uneven portion. A rectangular assembly frame characterized in that the distance is a non-integral multiple of the fixed pitch P of 11.