JPS6232425Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a connection mechanism for folding umbrella ribs.

In the case of a folding umbrella rib, when the umbrella is closed, it is necessary to rotate the cobweb through the connecting part and overlap the main rib, and when the umbrella is open, it is necessary to maintain the closed umbrella shape by orienting the cobweb in the direction of extension of the main rib. be.

The present invention aims to provide a structure of a connecting part for stably maintaining the open umbrella shape of a folded umbrella bone that is rotated laterally and overlapped with the main bone. It is.

Embodiments of the present invention will be described below with reference to the drawings.

A is a telescopic center rod, and a fixed wheel 1 is provided at the upper end thereof, and the base ends of a plurality of umbrella ribs B are pivotally connected to the fixed wheel 1 in a known manner.

The umbrella rib B is composed of a first rib 2, a second rib 3, and a coronal rib 4, which are rotatably connected by connecting fittings 5 and 6, respectively.

Reference numeral 7 denotes a bridge, one end of which is pivotally connected to a sliding connector 8 movably provided to the first main rib 2, and the other end pivotally connected to a sliding wheel 9.

As is well known, aggregates having a U-shaped cross section are used for the first rib 2, the second rib 3, and the strut 7, and for the coronal bone 4, a round wire-shaped aggregate is used. In the installed state, the first
The main rib 2 and the support rib 7 are in an inverted U-shape and face downward, and the second main rib 3 is in a partial U-shape and face upward.

Connecting fittings 5 and 6 are crimped and fixed to both ends of the second rib 3 with respective caulking connection portions 5a and 6a. The connection fitting 5 on the first rib side is the caulking connection part 5
It has a bearing part 5b that is continuous with a and has an upwardly U-shaped shape and has a height that projects upwardly from the second rib 3,
An end portion of the first rib 2 is pivotally attached to a shaft 5c that is installed on the bearing portion 5b. A driven protrusion 5d is further connected to the outside of the bearing part 5b, and one end of an elastic wire 10 for opening and closing the umbrella is pivotally attached to the driven protrusion 5d by a shaft 5e. The driving elastic wire 10 extends along the first rib 2 and passes through the support tube 2a which is crimped and fixed inside the first rib 2, and then comes off from the rib 2 and becomes a sliding connector for the support rib 7. It directly reaches a portion slightly distant from the pivot point to the pivot point 8, and is pivoted by the shaft 7a.

The connecting fitting 6 on the cotoid side has a bearing part 6b that is continuous with the caulking connection part 6a and has a downward U-shape and has a height projecting downward from the second main rib 3.
A supporting metal fitting 11 for the coronal bone 4 is pivotally attached to a shaft 6c installed on the shaft 6c. The support fitting 11 slidably supports the coronal bone 4 through a guide tube portion 11a.
A locking portion 1 having a height that continuously projects downward.
1b. The locking part 11b is the support metal fitting 11
has a size that allows it to rotate within the connecting fitting 6.

Reference numeral 12 denotes an elastic wire rod provided between the connecting fitting 11 of the first main rib 2 and the second rib 4, one end of which is locked to a locking part 2b formed by cutting up the upper side of the first main rib 2, and the connecting fitting The second main bone 3 extends from above in a substantially straight line and is pivotally connected to the end of the second main bone 4 via a link 13 .

In the above structure, in the open state shown in FIG. 1, the driven protrusion 5d of the connecting fitting 5 comes into contact with the lower surface of the first main rib 2, and the coronal bone 4 is pulled by the elastic wire 12. Since the ends of the ribs 4 that are pulled out from the support fittings 11 into the connecting metal fittings 6 abut against the lower surface of the connecting metal fittings 6, the umbrella rib B as a whole stably maintains its elongated shape.

From this state, remove 13 and turn the sliding wheel 9.
When pulled down, the umbrella rib B remains in the extended state and becomes a non-folded closed state, and from this state further the sliding wheel 9
When pulled down, the sliding wheel 9, the strut 7, and the sliding connector 8 as a whole move downward with respect to the center rod A and the umbrella rib B, and at this time, the elastic wire 10 moves the driven protrusion 5d. The connecting fitting 5 to the second main rib 3 are rotated above the first main rib 2 via the connecting fitting 5 to the second main rib 2, and the elastic wire 12 pushes the outer rib 4 to the outside of the connecting fitting 6. The engagement with the lower surface of the umbrella is released and the coronal bone 4 is rotated to enter the folded and closed state.

As described above, in the present invention, a bearing part is provided by fixing a connecting fitting to the end of the main bone, and a supporting fitting that slidably supports the coronal bone can be rotated within the connecting fitting via the bearing part. The end of the driving elastic wire provided between the main rib and the main rib is connected to the end of the colloid supported by the supporting metal fitting, so that when the umbrella is opened, the columbar Since it is pulled out from the supporting metal fitting and comes into contact with the connecting metal fitting to prevent its rotation, it is possible to stably maintain the shape of the coronal bone when it is opened by itself, and also It has the feature that the umbrella can be opened and closed smoothly via the elastic wire.

[Brief explanation of the drawing]

FIG. 1 is a front view of an embodiment of the present invention in an open umbrella state, and FIG. 2 is a front view showing the process of folding the umbrella into a closed state. 2, 3... Main rib, 4... Child bone, 6... Connecting metal fitting, 11... Supporting metal fitting, 12... Elastic wire for driving, 13... Link.

Claims (1)

[Scope of utility model registration request] A bearing part is provided by fixing a connecting fitting to the end of the main bone, and a support fitting that slidably supports the coronal bone is rotatably pivoted within the connecting fitting via the bearing part, and The end of the driving elastic wire provided between them is connected via a link to the end of the cotoid supported by the support fitting, and when the umbrella is opened, the cotoid is pulled out from the support fitting and the connection is completed. A connecting mechanism for folding umbrella ribs, characterized in that the mechanism is configured to abut against a metal fitting and prevent its rotation.