JPS606146Y2 - corner connector - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a series of corner fasteners that connect the corners of sashes, door frames, frames, etc. made of aluminum alloy, for example.

Conventionally, for example, the corners of aluminum door frames were joined with screws, which not only did not necessarily provide a strong bond, but also required a separate section to attach the setscrews to the door frame to be joined, making manufacturing difficult. Met.

The present invention was developed as a result of research to eliminate such conventional drawbacks.
It is completed.

That is, the present invention provides a series of corner fasteners for connecting tubular members to each other while maintaining a predetermined angle, and includes forked legs formed to match the connection angle of the members to be connected, and the legs. a locking part disposed at the tip of the part and whose hook part at the tip can engage with a notch provided in the material to be connected; a bridge part connecting the locking parts; and a bridge part disposed in front of the bridge part. This is a series of corner fasteners consisting of a nut and a bolt that passes through the leg and is threadedly engaged with the nut.

In the figure, reference numeral 1 denotes a corner series fastener having a pair of leg parts 1a, lb which are matched to the angle for attaching connected materials 20a, 20b such as an aluminum alloy door frame, and the leg parts are connected to a pair of side walls 2. , 2, consists of an abdominal wall 3 and end walls 4a, 4b, which are bridged between the side walls 2, 2, and an opening 5 at the back surface.

Reference numeral 6a denotes a pair of locking portions provided at the tips of the end walls 4a of the leg portions 1a, and the locking portions 6a are provided with hook portions 7a projecting outward at the tips thereof.

The locking portion 6a has a bridge portion 8a in its intermediate portion.
crosslinking.

Further, the locking portion forms a curved portion 9a that curves inward between the bridge portion 8a and the end wall 4a of the main body.

lla is a nut placed in front of the bridge portion 8a, 10a
is a bolt that passes through a bolt hole (not shown) provided in the end wall 4a of the leg portion and a bolt hole (not shown) provided in the bridge portion 8a and is screwed into the nut lla.

Similarly, the other end member 4b is provided with a locking portion 6b having a hook portion 7b.

The locking portion 6b is bridged by a bridging portion 8b at its intermediate portion, and forms a curved portion 9b between the bridging portion 8b and the end wall 4b of the leg.

llb is the nut, 10b is the end wall 4b of the leg and the bridge portion 8.
b and through a bolt hole (not shown) provided in llb.
This is the bolt that is screwed together.

On the other hand, a notch 22a is previously provided in the member to be connected 20a at a position where the hook portion 7a projects outward.

Further, similarly to the connected material 20a, a notch 22b is provided in the connected material 20b.

Here, the bolts 10a, 10b and nut 11a are
, 11b may be integrally formed of thermoplastic synthetic resin such as polyamide, or aluminum alloy, and the legs 1a, lb and the locking portion 6a
, 6b may be formed of a different material and then assembled.

When connecting the above-mentioned connected members 20a and 20b, first,
One leg 1a is inserted into the member 20a to be connected, and then a jig (not shown) such as a screwdriver is inserted through the opening 5, the bolt 10a is turned, and the nut 11a is pulled toward the end wall 4a.

Then, the curved portion 9a of the locking portion 6a curves inward, and the hook portion 7a accordingly expands outward, and the hook portion 9a protrudes into the notch 22a of the material to be connected.
engage with.

Thereafter, the other leg portion 1b is inserted into the member to be connected 20b, and the bolt 10b is turned using the jig inserted through the opening 5 in the same manner as described above to curve the curved portion 9b at the locking portion.

At this time, the hook portion 7b protrudes into the notch 22b of the connected member 20b and engages with the notch 22b.

As described above, the door frame is assembled by connecting each corner using a connecting tool.

It goes without saying that the connected member 20a requires a hole (not shown) for inserting a jig into the opening 5.

Further, it is desirable that the inner wall surface of the member to be connected and the corner connecting member be formed so that the gap between the two is as small as possible.

As described above, the present invention inserts the leg portions 1a and lb of the corner chain ties into the materials to be connected 20a and 20b, and also inserts the hook portions 7a and 7b provided at the tips of the legs into the materials to be connected, respectively. Since it engages with the notches 22a and 22b, the bonding force between the members to be connected is stronger than in the case of conventional simple screw fastening.

Further, since there is no need to provide a mounting portion for a set screw on the connected member as in the conventional case, manufacturing thereof is also facilitated.

[Brief explanation of drawings]

The figure is a perspective view of a series of corner ties according to the present invention. 1 is a series of corner ties, la and lb are legs, 2 is a side wall, 3
is the abdominal wall, 4a, 4b are the end walls, 5 is the opening, 6a, 6b
is a locking part, 7a and 7b are hook parts, 8ay8b is a bridge part, 9
a, 9b are curved parts, 10aiOb are bolts, lla, l
lb is a nut, 20a, 20b are connected materials, 22at2
2b is a notch.

Claims (1)

[Scope of utility model registration request] A series of corner knots that connect tubular materials to be connected while maintaining a predetermined angle, each having a fork-shaped leg portion formed to match the connection angle of the materials to be connected, and a forked leg portion disposed at the tip of the leg portion. a locking portion whose tip end is capable of engaging with a notch provided in a member to be connected; a bridge portion connecting the locking portions; a nut disposed in front of the bridge portion; and a nut disposed in front of the bridge portion. A series of corner fittings consisting of a bolt that passes through the section and threads into the nut.