Automatic straight umbrella
The present invention relates to an automatic straight umbrella, which includes a power rod received in the shaft of the umbrella. The rod can be pressed for storing energy to open or close umbrella automatically by the recovery forces of lower spring and upper spring in the shaft. The novel structure of the automatically is simple and utilized for use and assembly.
A conventional umbrella being capable of opening and closing automatically is used popularly. The known automatic umbrella includes a shaft provided with inner springs and a wire connecting with a bullet head for engagement. Before use, the shaft of the umbrella must be pressed firstly for compressing the inner springs to provide opening or closing force. The structure of prior umbrella is very complicate, and the springs and the wire as well as the bullet head are all received in the same place of the shaft. The assembly is difficult and it increases possibility of work out.
Accordingly, the present invention is to provide an automatic opening/closing straight umbrella, which provides a novel structure for opening or closing the umbrella automatically. And the structure is simple for assembly that obtains improvement and utility.
BRIEF DESCRIPTION OF THE DRAWINGSThe following drawings indicate the character and improvement of the present invention.
Referring firstly to
A power rod (2) is provided to insert into the shaft (1) from its lower end. A connector (21) is provided on top of the rod (2), and has a sideward convex (211), which just positions in upper slot (11) of the shaft (1). An upper spring (7) is received in the shaft (1) over the connector (21) while a lower spring (6) is under the connector (21) around the rod (2). The lower spring (6) has its lower end to connect with a sleeve (22) having a sideward convex (221) just positioning in lower slot (12) of the shaft (1). The power rod (2) is provided with a stopper (23) accompanying a coil spring (24) at a position relating to a controlling button (3) on the handle (16). The controlling button (3) includes an inner coil spring (32) and a tongue (31), which can engage with an aperture (141) on the outer tube (14). The outer tube (14) includes another aperture (142) for receiving the convex (221) of the sleeve (22).
Before use, the power rod (2) is pushed upward into the shaft (1), as shown in
To close the umbrella, one can press again the button (3). As shown in
As shown in
Accordingly, the present invention obtains utility for use and should be allowed for patent.
Claims
1. An automatic straight umbrella including a shaft connecting its lower end with a handle and its upper end with an upper joint, an outer tube provided around the shaft slidably connecting with middle joint at upper end, a runner provided around the outer tube slidably, and frame having the inner end of each rib to connect with the upper joint, the middle joint, and the runner respectively; a spring being provided between the frame and the runner, a power rod provided to insert into the shaft from its lower end, a connector provided on top of the rod, and having a sideward convex, which just positions in upper slot of the shaft, an upper spring received in the shaft over the connector while a lower spring is under the connector around the rod; the lower spring having its lower end to connect with a sleeve having a sideward convex just positioning in lower slot of the shaft; the power rod being provided with a stopper accompanying a coil spring at a position relating to a controlling button on the handle, the controlling button including an inner coil spring and a tongue, which can engage with an aperture on the outer tube, the outer tube includes another aperture for receiving the convex of the sleeve and a hole for engaging with the stopper.
2. An automatic straight umbrella as claimed in claim 1, wherein the power rod being pushed upward into the shaft for storing energy, and as the stopper is engaged with the relating hole of the shaft, the umbrella being ready for use in stable, and the connector extending the lower spring since the lower end is fixed with the sleeve while the convex is engaged with the outer tube.
3. An automatic straight umbrella as claimed in claim 1, wherein the button can be pressed to push the tongue leaving the outer tube, and the sleeve is moved upward by the recovery force of the lower spring, and the middle joint moving upward that causes the frame to lift and the runner to move upward, that the umbrella is opened automatically.
4. An automatic straight umbrella as claimed in claim 1, wherein the button being pressed again, while the contact face of the button can touch and push the stopper inward at this moment and the engagement of the power rod is released, and the rod being moved downward by the recovery forces of the upper spring and the spring, while the umbrella can be closed at the same time.
5. An automatic straight umbrella as claimed in claim 1, wherein the stopper is covered by the lower end of the outer tube, which is formed a thin portion, that avoids from mistouching before the umbrella is opened.
Type: Application
Filed: Jul 28, 2003
Publication Date: Feb 3, 2005
Inventor: Chen-Maan Chang (Hsinchu City)
Application Number: 10/627,659