Automatic umbrella how does it work

The expansion process of the present invention is illustrated in FIG. In FIG. The set of shafts [] 10 is contracted as a single section, when it is desired to expand the umbrella, the middle rods 11 to 13 of the set of shafts 10 are extended manually, as illustrated in FIG. Since the upper shaft 11 and middle shaft 12 are fixed by the buckle 90 , and the middle shaft 12 and the lower shaft 13 are fixed by the buckle 80 , after expansion, the upper shaft 11 , middle shaft 12 and upper shaft 11 are positioned and do not contract.

When the lower shaft 13 extends backwards, the pulley 82 at the top of the lower shaft 13 rises by the two pull lines 84 so as to pull the pull ring 40 until the buckle stud 45 moves upwards and then buckled into the though hole of the upper shaft 11 and is buckled therein.

Then, a buckle stud 31 at a lower end of the lower cell 30 will be ejects by spring 32 so as to be buckled into the though hole near a lower end of the upper shaft 11 to resist the rising of the push rod Besides, after the upper shaft 11 moves to an upper end of the middle shaft 12 , the buckle stud 91 for buckling the buckle 90 will be buckled into the though hole Referring to FIG.

When the raised brake block 53 is hindered by the front stopper at the lateral side of the first protruding block , it will not rise again. Therefore, the brake block 53 only rises through a distance of L1. Since the brake block 53 rises through a distance of L1, the push rod 72 also rises with a distance of L1.

However, at this time, the upper tapered head will press the buckle stud 31 so as to reduce outwards to separate from the though hole Therefore, the lower cell 30 is not be fixed to a lower end of the upper shaft On the contrary, it is pulled by the compressed spring When it rises to the top to touch the pass rod 48 so that after the pass rod 48 referring to FIG.

Thereby, the pull ring 40 is not fixed the upper end of the upper shaft Although the lower cell 30 and pull ring 40 are not combined to the upper shaft 11 , and the middle rods 11 to 13 are fixed by the buckles 80 and 90 , the lower cell 30 and pull ring 40 can not descend. Since the bones 61 and umbrella cloth are expands, the user can use the umbrella to shield rain or sunshine. When the raised brake block 53 does not rise since the second protruding block is hindered by the front stopper Therefore, the brake block 53 rises through a distance of L2.

On the contrary, after the pull line 74 releases, the push rod 72 is pushed by the spring 73 to rise through a distance of L2. However, at this time, the lower tapered head will press the buckle stud 92 to reduce outwards and thus not to pass through the though hole referring to FIG. Then the upper shaft 11 and middle shaft 12 does not be buckled and thus the two can be separated at any time. When the middle shaft 12 reduces into the upper shaft 11 , the pull lines 84 will loose so that the expandable springs 62 extend.

The tensions from the extension of the expandable springs 62 are larger than the elastic force of the contractible spring 63 so as to enforce the pull ring 40 and lower cell 30 descends. Thus the upper shaft 11 descends therewith. The middle shaft 12 reduces into the upper shaft 11 continuously.

Therefore, the upper shaft 11 and middle shaft 12 descend to be flushed with the lower shaft Finally, a folding condition as shown in the FIG. The bones 61 and umbrella cloth are folded for storage without any manual operation. By the present invention, the user can control the umbrella by only one hand so that the user can use the umbrella easily and conveniently.

Although the present invention has been described with reference to the preferred embodiments, it will be understood that the invention is not limited to the details described thereof.

Various substitutions and modifications have been suggested in the foregoing description, and others will occur to those of ordinary skill in the art. Therefore, all such substitutions and modifications are intended to be embraced within the scope of the invention as defined in the appended claims. I claims: 1. An automatic folding umbrella comprising a set of telescopic shafts including an upper shaft, a middle shaft and.

The automatic folding umbrella construction as claimed in above claim 1 , wherein an inner hole at the lower end of the runner has a buckle stud and an expandable spring, the buckle stud is inserted into a through hole of the upper shaft to resist against a top end of the upper tapered head of the push rod. The automatic folding umbrella as claimed in claim 1 , wherein the push rod is a round tube with an upper tapered head and a lower tapered head, diameters of the upper tapered head and lower tapered head are larger than that of the sleeves; at a upper tapered head is a protruding block to fix the pull line.

The automatic folding umbrella as claimed in claim 1 , wherein a wall of the push rod is formed with a slot, the slot is aligned with the through holes of the wall of the sleeve and middle shaft, an inserting stud inserts into the through hole of the sleeve and the middle shaft for fixing the sleeve to the middle shaft, the stud is further inserted into the slot of the push rod so that the displacement of the push rod is confined by the stud. An automatic folding umbrella comprising: a set of telescopic shafts including an upper shaft, a middle shaft and a lower shaft,.

The automatic folding umbrella as claimed in claim 5 , wherein an end of the brake block facing the futon has a first protruding block and a second protruding block, and an end of the brake block backing to the button is formed with a first receiving groove and a second receiving groove, a height of the first protruding block is lower than that of the first receiving groove, and is higher than that of the second receiving groove.

The automatic folding umbrella as claimed in claim 7 , wherein a lower end of the elastic buckle piece is inserted into an inserting opening of the post stud and the bead is formed at an upper end of the elastic buckle price. The automatic folding umbrella as claimed in claim 7 , wherein two ends f the pull line are formed as two lines after the pull line passes through the pulley, upper ends of the pull lines pass through the pulleys at a left and right top end of the upper shaft, and then the pull lines are guided into the pull ring to wind around the two winding wheels in the pull ring.

The automatic folding umbrella as claimed in claim 7 , wherein an inner lateral wall of the pull ring is formed with a through hole for receiving the buckle stud and the expandable spring, a rear end of the buckle stud is combined with an inserting rod, an outer lateral wall of the pull ring is installed with an inserting opening, the inserting rod inserts into an inserting opening, the inserting opening is communicated with the hole, another axial hole is communicated with the radial inserting opening, the axial hole is inserted by a passing rod from an upper side thereof, a top of this passing rod has a wedge surface and a thin rod, the thin rod is insert into an annular opening of the inserting rod.

USB2 en. EPA3 en. KRY1 en. Improved wire retracting structure for protective device of automatic opening-closing umbrella. USB1 en. Reliably operated automatic umbrella with upwardly and downwardly thrusted push button. EPA2 en. USA en. AUB2 en. KRB1 en. USA1 en. The spring 9 on the bottom of the sliding block 6 is then squeezed into the groove at the bottom of the sleeve compartment groove The pin 7 moves to the hollow part 62 of the sliding block 6 due to the motion of the sliding block 6.

When the button 5 on the handle 1 is pressed, the sliding block 6 would move so that the pin 7 would be disposed in the hollow part 62 of the sliding block 6 due to the motion of the sliding block 6.

The runner 13 would depart from the hook block 51 at the front of the button 5 and move toward a notch By a spring 17 in the shaft, the umbrella would be fully stretched out so that a spring 22 on the collapsible rib 20 is stretched. The button 5 on the handle 1 would restore its original position due to the spring 10 connecting to its front end.

The block 6 would also move upward due to spring 9 at the bottom after the restoration of the button 5 and the departure of the runner Therefore, one end of the pin 7 touches the bottom of the sliding block 6. When the button 5 on the handle 1 is pressed again, the sliding block 6 would move. Since the pin touches the bottom of the sliding block 6 , it would be pushed by the sliding block 6 so that the other end touches the hook 4 in the control tube 3 and further pushes the hook 4.

The angle 41 at the front end of the hook 4 is pushed out of the opening on the lower tube 21 so that the hook 4 departs from the bullet head 14 within the shaft 2. The bullet head 14 then moves upward by the pulling of the string 15 , and the runner moves downward slightly. This causes the contraction of the spring 22 connecting on the umbrella rib 20 , which further collapses the rib The pin 7 restores its original position due to the spring plate 8 , and the hook 4 also restores its original position because of the influence of the fixing position 33 within the control tube 3.

Therefore, the control device formed by the combination of the hook 4 in the lower tube 21 of the shaft 2 and the handle 1 provides two sections of pressing on the button 5 so that the umbrella can automatically open and close. Compared with the prior art, the automatic opening and closing structure of a collapsible umbrella has the following advantages:. A control tube is provided within the lower tube for connecting a hook at the fixing position so that the hook can catch a bullet head within the shaft.

With the design of the button, the sliding block, the pin, the spring, and the spring plate, the button has two sections of pressing to achieve the goal of automatic opening and closing. The present invention does not only have the features of a simple structure, easy to assemble, and highly practical value, it also applies to any type of umbrellas which increases its extra value. Many changes and modifications in the above described embodiment of the invention can, of course, be carried out without departing from the scope thereof.

Accordingly, to promote the progress in science and the useful arts, the invention is disclosed and is intended to be limited only by the scope of the appended claims. What is claimed is: 1. An automatic opening and closing structure of a collapsible umbrella, which comprises:.

The automatic opening and closing structure of a collapsible umbrella of claim 1 , wherein the top of said hook forms a perpendicular angle so that a bullet head within the shaft can be caught thereby. The automatic opening and closing structure of a collapsible umbrella of claim 1 , wherein said connection part and said surrounding sleeve form a compartment space for the disposal of said runner when the umbrella is collapsed.

The automatic opening and closing structure of a collapsible umbrella of claim 1 , wherein when said pin is pushed by said sliding block it can be restored by the spring force of said spring plate connected to said connection part slit. The automatic opening and closing structure of a collapsible umbrella of claim 1 , wherein said button can slide within the sleeve through said sliding track in said sleeve opening, and said hook block provided in the front hooks to said runner.

The automatic opening and closing structure of a collapsible umbrella of claim 1 , wherein said sleeve and said base combine to form the handle. The automatic opening and closing structure of a collapsible umbrella of claim 1 , wherein when said sliding block is pushed by said runner, said sliding block is disposed within said compartment groove on said base sleeve, whereas said lower spring at the bottom is squeezed into said groove at the bottom of said compartment groove, and said sliding block can restore its original position when said runner departs.

USB1 en. Multiple-fold automatic umbrella with simplified control mechanism and minimized elements. USA en. USA1 en. TWMU en. These smaller umbrellas are usually automatic so at the press of a button the umbrella opens automatically. This type of umbrella is known as an automatic umbrella. The basic principle remains the same as the classic umbrella version in that once the button is pressed, the canopy will open and be held firm, however for this umbrella the shaft is spring-loaded.

This means once the opening button is pressed, the spring mechanism forces the runner up the shaft and the ribs elongate to hold the canopy firm. You can even find models where you can automatically close the canopy by using the same button; the canopy snaps shut, then the shaft can be manually collapsed.

We really hope you've learned something about how an umbrella works. We're really passionate about all aspects of umbrellas and hope you found that there's a bit more to umbrellas than initially meets the eye. We hope we've managed to shed some light on the topic and explain what makes these everyday items so clever. Enjoy opening your umbrella in the next rain storm, hopefully you'll gaze up at the canopy and smile that you know just a little more about how it works.

If you're looking to buy a new umbrella, do take a look at our reviews of golf umbrellas and compact travel umbrellas. Some great Top Picks are below. Spread the love. Quick Navigation The Main Parts. The Main Parts In order to understand how an umbrella works, you need to know the basic parts of an umbrella.

How an Umbrella Opens The way an umbrella opens is really quite clever! Other Types of Umbrellas In addition to the classic umbrella, it is also worth mentioning compact umbrellas, sometimes known as collapsible umbrellas.