JPH064727Y2 - Umbrella bone - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to improvement of an umbrella bone.

[Conventional technology]

As shown in FIG. 1, the structure of a conventional general umbrella frame is shown in FIG.
The upper locker 19 is fixed to the upper end of the lower locker 16 so that the lower locker 16 can be moved up and down on the umbrella shaft 10, one end of the rib 12 is rotatably attached to the upper locker 19, and one end of the fulcrum 14 is The other end of the lower wheel 16 is rotatably attached to an intermediate position of the rib 12.

At the lower end of the lower wheel 16, an operation tube 16a that is held by a finger to push the lower wheel up and down when opening and closing the umbrella is integrally attached.

When opening the umbrella, hold the operation tube 16a above and
Is pushed up, the ribs 12 are pushed open by the fulcrum 14. An upper crater 18 is attached to the upper portion of the umbrella shaft 10 so that the lower end of the operation tube 16a is locked to maintain the open state. When the umbrella is closed, the upper repellent 18 is pushed into the umbrella bone with the thumb and the operation tube 16a is pulled to the hand.

In such a conventional general umbrella frame, when the umbrella is opened and closed, it is necessary to pinch the fingertips on the upper repellent 18 to get injured, or when the umbrella is closed, it is necessary to look for the upper repellent, and it is stored in the umbrella frame. In addition, the spring of the cistern has fallen out and has failed, and it is not possible to maintain the open umbrella state.

[Problems to be solved by the device]

The present invention has been made to solve the above-mentioned problems, and its purpose is to maintain an open umbrella state without upper cissing, a simple structure, and few failures. It is an object of the present invention to provide an umbrella bone that has many advantages, such as low manufacturing cost, easy opening and closing operation of an umbrella, and no finger injury.

[Means for Solving the Problems]

The above-mentioned object is to provide an umbrella bone composed of a rib having one end rotatably attached to the upper rocker and a fulcrum having one end rotatably attached to the lower rocker and the other end rotatably attached to an intermediate position of the rib. This can be achieved by the above-mentioned umbrella bone, characterized in that the middle portion of the fulcrum is curved in a V shape, and the mountain-shaped curved portion is attached so as to face downward when the umbrella is opened.

It is recommended to attach a stop tube to the upper end of the lower wheel.

[Action]

With the above configuration, when the umbrella is opened, the force acting on the lower wheel through the "U" shaped skeleton is directed upward in the umbrella axis, so the umbrella does not close even without upper cissing. In addition, the elastic force of the "U" shaped skeleton tightens the ribs to maintain a stable open umbrella state, which eliminates the need for upper cissing and has a simple structure with few breakdowns.
The manufacturing cost is low, the umbrella can be opened and closed easily, and the fingertips are not injured.

〔Example〕

Hereinafter, the configuration of the present invention will be specifically described with reference to the drawings.

2 is an exploded explanatory view showing the structure of the umbrella bone according to the present invention, FIG. 3 is an explanatory view showing a closed state of the assembled umbrella bone shown in FIG. 2, and FIG. It is explanatory drawing which shows a state.

2 to 4, 20 is an umbrella shaft, 22 is an upper wheel, 30 is a lower wheel, 36 is a grip handle, 38 is a rib, 40 is a support bone,
Reference numeral 44 is an operation tube integrally attached to the lower end portion of the lower wheel 30, and 28 is a stop tube body integrally attached to the upper end portion of the lower wheel 30.

The upper wheel 22 is fixed to the upper end of the umbrella shaft 20 and has a plurality of vertical grooves.
One end of the rib 38 is inserted into the 26, and a small hole 38a opened in this
By winding the wire passed through to the annular groove 24,
The rib 38 is rotatably attached.

Further, the lower wheel 30 is mounted so as to be able to move up and down on the umbrella shaft 20, and one end of the fulcrum 40 is inserted into the plurality of vertical grooves 34, and the wire passed through the small hole 40a opened in the lower wheel 30 is lowered. The fulcrum 40 is rotatably attached to the lower wheel 30 by being wound in the annular groove 32.

The other end of the support bone 40 is rotatably attached to an intermediate position of the rib 38 by a connecting fitting 42.

Although only one set or two sets of the ribs 38 and the fulcrum 40 are shown in the drawing, actually, 8 to 12 sets are radially attached around the umbrella shaft.

The above configuration is not particularly different from the structure of the conventional general umbrella frame.

The characteristic features of the present invention are as follows.
The middle part of the fulcrum 40 was curved in a V shape, and the mountain-shaped curved part was attached so as to face downward when the umbrella was opened, and thus it was attached to the conventional umbrella shaft. There is no need for upper repelling.

That is, from the closed state shown in FIG. 3, when the lower rocker 30 is pushed up while holding the operation tube 44, the rib 38 is pushed open by the fulcrum 40. An umbrella cloth (not shown) stretched over the rib 38 is stretched. At this time, when the lower wheel 30 reaches above a certain position on the umbrella shaft 20, the force acting in the direction of closing the main rib 38 by the tensioned umbrella cloth trying to shrink is caused by the skeleton 40 "
Since it is curved in a V shape, it works to move the lower rocker 30 upward, so the umbrella does not close even if there is no upper repelling, and due to the elastic force of the "K" shaped supporting bone, It is tightly stretched to maintain a stable open umbrella state.

At this time, the upper end of the stop tube 28 made of hard rubber or the like integrally attached to the upper end of the lower wheel is blocked by the lower end surface of the upper wheel 22, and the lower wheel 30 does not move further upward. , A constant open state is maintained. Therefore, by setting the length of the stop tube 28 appropriately, it is possible to determine the predetermined open state.

When closing the umbrella, the operation tube 44 may be held and pulled toward the hand side.

As described above, in the structure of the umbrella bone according to the present invention, a constant open state is maintained even if there is no upper cissing, and when the umbrella is closed, the upper cissing is searched for and pushed in as in the conventional case. No need.

[Effect of device]

Since the present invention is constructed as described above, the structure of the present invention is simple, there are few breakdowns, the manufacturing cost is low, the opening and closing operation of the umbrella is easy, and the fingertips are not injured. Thus, it is possible to provide an umbrella bone having many advantages.

The configuration of the present invention is not limited to the above-described embodiment, but can be applied to, for example, a foldable umbrella bone, and the present invention is within the scope of its object from the above description to those skilled in the art. Includes all modified embodiments that can be easily conceived by.

[Brief description of drawings]

FIG. 1 is an explanatory view showing the structure of a conventional general umbrella frame, FIG. 2 is an exploded explanatory view showing the structure of the umbrella frame according to the present invention, and FIG. 3 is an assembled view of the umbrella frame shown in FIG. FIG. 4 is an explanatory view showing the closed state, and FIG. 4 is an explanatory view showing the opened state. 10 …… Umbrella shaft 12 …… Main rib 14 …… Spindle 16 …… Lower wheel 16a …… Operating tube 18 …… Upper wheel 20 …… Upper wheel 20 …… Umbrella shaft 22 …… Upper wheel 24 …… Annular groove 26 …… Vertical groove 28 …… Stopping tube 30 …… Lower wheel 32 …… annular groove 34 …… Vertical groove 36 …… Grip handle 38 …… Main rib 40 …… Spindle 42 …… Coupling bracket 44 …… Operation tube

Claims (2)

[Scope of utility model registration request] 1. A rib (38) having one end rotatably attached to an upper rocker and a fulcrum (40) having one end rotatably attached to a lower rocker and the other end rotatably attached to an intermediate position of the ribs. In the umbrella bone, the middle portion of the fulcrum (40) is curved in a V shape, and the mountain-shaped curved portion is attached so as to face downward when the umbrella is opened. . 2. The umbrella frame according to claim 1, wherein a stop tube body (28) is attached to an upper end of the lower wheel.