Automatic umbrella

Abstract

The present invention provides an automatic umbrella, which is comprised of an open mechanism, a central handle assembly, wherein said open mechanism is consisted of an upper rib nest, a low rib nest and proper number of ribs attached with restoring springs; said automatic umbrella also includes a ratio mechanism and a handle control device; said central handle assembly is consisted of a couple of inner and outer telescopic tubes connected together in socket joint, and an extension spring; said extension spring is located on the inside of said outer telescopic tube and the top end of said inner telescopic tube; said ratio mechanism set upon the inside of said central handle includes a movable block base, a standing block base, a stay wire and a stick with a catch head; said standing block base is retained on the upper end of said outer telescopic tube of said central handle nearing to said upper rib nest, said stay wire is fastened on said standing block base with one end, and another end is threaded crossly said movable and standing block bases sequentially, then fastened on said low rib nest of said open mechanism; said inner telescopic tube of said central handle assembly is retained on said handle control device with the bottom end, the catch head of said stick is controlled by said handle control device. By means of changing the relative distance between the movable block base and the standing block base, the sliding distance of said low rib nest on the central handle assembly can be obtained in several times than the change of the distance between the two block bases; cooperating to said restoring springs set on said ribs, and the set of said switcher of said handle control device, repeatedly press-down the button can perform to open and close umbrella functions.

Description

BACKGROUND OF THE INVENTION

[0001] 1. Field of the Invention

[0002] The present invention is relative to an automatic umbrella in the umbrella field, and especially to an automatic open and close umbrella.

[0003] 2. Description of Prior Art

[0004] Umbrella is an indispensable tool often used in the people's daily life, there are many kinds of it, but so far, in the market, most of them can be divided into telescopic and stiff handles two kinds, among of them, the conventional stiff handle umbrella shown in FIG. 1 consists of an open mechanism 1′ and a central handle assembly 2′, wherein said open mechanism 1′ includes an upper rib nest 11′ and a low rib nest 12′, and ribs 14 attached with springs 13′; in practicing, need one hand holds on the handle, another hand pushes said low rib nest 12′ sliding up until the ribs are spread out thoroughly cooperating to the springs 13′ to open the umbrella, but want to close it, have to need the both hands act simultaneously, the umbrella just is retracted to the original close state so that the user can be get into the car, but just only this short period, the user maybe get wet in rain, so the facility of the umbrella is loosed in this case.

OBJECTS AND SUMMARY OF THE INVENTION

[0005] The key object of the present invention is to provide an automatic umbrella with an open and close mechanism by pressing down a same button repeatedly to perform open and close operation.

[0006] For archiving above-mentioned object, the present invention provides an automatic umbrella comprised of an open mechanism and a central handle assembly, said open mechanism includes an upper and low rib nests and a proper number of ribs attached with springs; wherein a ratio mechanism and a handle control device are also included in said open mechanism; said central handle assembly consists of a couple of inner and outer telescopic tubes and an extension spring located at the inside of the outer telescopic tube and on the tip end of the inner telescopic tube; said ratio mechanism combined into the inside of said central handle assembly is consisted of a movable block base and a standing block base, a stay wire and a stick with a snap ring; said standing block base is retained on the tip end of the outer telescopic tube of said central handle assembly approaching said upper rib nest, and holds one end of said stay wire, another end of said stay wire is led to cross said movable block base and said standing block base sequentially, then is fastened on said upper rib nest, said inner telescopic tube of said central handle assembly is retained on said handle control device with the bottom end, the catch head of said ratio mechanism is controlled by said handle control device.

[0007] Said handle control device typically includes a handle, a button assembly and a sleeve, wherein said handle has upward blind hole for putting said central handle assembly in at the top end, and a blocking portion at the upper, and a radial opening at the middle for placing a button assembly in the hollow inner, and a restoring flap and an active flaky lever are separately hung on the both ends of said opening by two pins, said restoring flap is backed up elastically by a restoring spring at inner side, beside said restoring flap downward a slot is built upon for setting a clasp frame, by a position block via a spring locating one end of said clasp frame, cooperating to opposite said flaky lever touching against another end of said clasp frame, said clasp frame is set in place; said button assembly is consisted of a button and a switcher, via a pin they are connected together, meanwhile a spring is set upon between said button and said switcher; said switcher has a hollow space set on the center for passing through said central handle assembly, coordinating to it, a catching notch is built on the proper position at the low portion of said outer telescopic tube; on the other side, said switcher has a lug with a tilt extended coordinating to said notch of said outer telescopic tube; said button combined with said switcher is set into the hollow space of said radial opening, simultaneously cover on the upper portion of said restoring flap; said sleeve is used for fitting said handle in, and has an U-shaped groove for containing said button assembly.

[0008] Said clasp frame is a flat frame with a hollow space at the center and a lug extended at the inside.

[0009] Said movable block base and said standing block base of said radio mechanism individually has two pulleys mounted on.

[0010] Said inner telescopic tube of said central handle assembly is fit on the tip end with a gag, meanwhile at the inner wall of said outer telescopic tube a inward flange is built on for stopping said extension spring.

[0011] Said open mechanism has a restoring spring set upon the bottom end of said upper rib nest.

[0012] Applying above-described structure, due to employing a new ratio mechanism, in which said stay wire crassly threading said movable block base and said standing block base is finally fastened on said low rib nest, cooperating to the snap ring of said stick controlled by said handle control device, by means of changing the relative distance between the movable block base and the standing block base, the sliding distance of said low rib nest on the central handle assembly can be obtained in several times than the change of the distance between the two block bases; cooperating to said restoring springs set on said ribs, switcher of said handle control device and the pushing forces exerting the button by said restoring springs and said restoring flap, pressing down said button can perform to push said switcher to release said outer telescopic tube so that the umbrella is open; due to the action of said restoring spring, and the contacting between the switcher and said active flaky lever in this time, when pressing the button down again, the catch head of said stick is released by pushing clasp frame to carry out closing function, therefore, repeatedly press-down the button in the present invention can facilitate to perform automatic open and close umbrella function.

BRIEF DESCRIPTION OF THE DRAWINGS

[0013] FIG. 1 is a scheme of the prior art.

[0014] FIG. 2 is an exploded view showing the handle control device of the present invention.

[0015] FIG. 3 is a solid view showing the ratio mechanism of the present invention.

[0016] FIG. 4 is a sectional view showing the close state of the present invention.

[0017] FIG. 4A is a part enlarged view of FIG. 4.

[0018] FIG. 5 is a scheme showing the appearance of closing state of the present invention.

[0019] FIG. 6 is a sectional view showing the open action of the present invention (1).

[0020] FIG. 7 is a cross-section view showing opening action of the present invention (2).

[0021] FIG. 8 is a scheme showing the appearance of opened umbrella of the present invention.

[0022] FIG. 9 is a cross-section view showing closing action of the present invention.

[0023] FIG. 10 is a solid view showing the appearance of closed umbrella of the present invention.

DETAILED DESCRIPTION OF PREFERRED EMBODIMENTS

[0024] Referring to FIG. 2 to FIG. 10, the present invention is comprised of an open mechanism 1, a central handle assembly 2, a ratio mechanism 3 and a handle control device 4, wherein said open mechanism 1 is comprised of an upper rib nest 11, a low rib nest 12 and proper number of ribs 14 attached with restoring springs 13;

[0025] Said central handle assembly 2 is consisted of a couple of inner and outer telescopic tubes 21 and 22 connected together in socket joint, and an extension spring 23, and a gag 24 fit on the tip end of said inner telescopic tube 21, said extension spring 23 is located on the top side of said gag 24, said outer telescopic tube 22 has an inward flange 221 built upon the inside wall for locating said extension spring 23 cooperating the gag 24;

[0026] Referring to FIG. 3 in following, a ratio mechanism 3 set on the inside of portion 2 of said central handle assembly 2 is comprised of a movable block base 31, a standing block base 32, a stay wire 33 and a stick 34 with catch head 35; said movable block base 31 and said standing block base 32 individually has two pulleys 311 312 and 321 322 mounted on, said standing block base 32 is retained on the upper end of said outer telescopic tube 22 of said central handle approaching to said upper rib nest 11, said stay wire 33 is fastened on said standing block base 32 with one end, and another end is threaded crossly said pulleys 311 321 312 322 of said movable and standing block bases 31 and 32 sequentially, then fastened on said low rib nest 12 of said open mechanism 1; said inner telescopic tube of said central handle assembly 2 is retained on said handle control device 4 with the bottom end, the catch head 35 of said stick 34 is controlled by said handle control device 4;

[0027] Referring to FIG. 2, said handle control device 4 typically includes a handle 41, a button assembly 42 and a sleeve 43, wherein said handle 41 has upward blind hole 411 for putting the portion 1 of said central handle assembly 2 in at the top end, and a blocking portion 412 at the upper, and next a radial opening 413 at the middle for placing a button assembly 42 in the hollow inner, and a restoring flap 414 and an active flaky lever 415 are separately hung on the both ends of said opening 413 by two pins X, said restoring flap 414 is backed up elastically by a restoring spring 4141 at inner side, beside said restoring flap 414 downward a slot 417 is built upon for setting a clasp frame 416, said clasp frame 416 is a flat frame with a hollow space at the center and a lug 4161 extended at the inside; by a position block 419 via a spring 418 locating one end, cooperating to opposite said flaky lever 415 touching against another end, said clasp frame 416 is set in place; said button assembly 42 is consisted of a button 421 and a switcher 422, via a pin X they are connected together, meanwhile a spring 423 is set upon between said button 421 and said switcher 422; said switcher 422 has a hollow space 4221 on the center for passing through the portion 1 of said central handle assembly 1, said button 421 combined with said switcher 422 is set into the hollow space of said radial opening 413, and simultaneously cover on the upper portion of said restoring flap 414; coordinating to said switcher 422, a catching notch 222 is built on the proper position at the low portion of said outer telescopic tube 22; on the other side, said switcher 422 has a lug 4222 with a tilt extended coordinating to said notch 222 of said outer telescopic tube 22. Said sleeve 43 is used for fitting said handle 421 in, and has an U-shaped groove 431 for containing said button assembly 42, and said inner telescopic tube 21 is retained on said sleeve 43 with the bottom end.

[0028] In combination, referring to FIGS. 4, 4A and FIG. 5, firstly sequentially said restoring spring 4141, said restoring flap 414 and said active flaky lever 415 are separately mounted on said handle 41 with said pins X, said clasp frame 416 and spring 418 is located on said handle 41 by said position block 419; next said button assembly 42 is installed into the inside of said handle 41; then said inner telescopic tube 21 of said central handle assembly 2 is retained on said handle control device 4, meanwhile said outer telescopic tube 22 is put into the inside of said blind hole 411 of said handle 41 so that said lug 4222 with a tilt of said switcher 422 latches into said notch 222 of said outer telescopic tube 22; and said catch head 35 of said ratio mechanism 3 is locked by said clasp frame 416. Because said extension spring 23 in the portion 2 of said central handle assembly 2 is pressed by the inward flange 221 in this time, said outer telescopic tube 22 is exerted on a elastic restoring force of said extension spring 221, but said blocking portion 412 is still to keep said switcher 422 in place, meanwhile said restoring spring 423 located in said button assembly 42 is in compression state.

[0029] When trying to open the umbrella of the present invention, as shown in FIG. 6 to FIG. 8, pressing down said button 421 is to push said switcher 422 to move rightward simultaneously so that said outer telescopic tube 22 is released, under the restoring force of said extension spring 23 said outer telescopic tube 22 is driven to slide upward to carry over said standing block base 32 moving upward simultaneously, because said catch head 35 is locked by said clasp frame 416 of said handle control device 4, the distance between said standing and movable block bases 32 and 31 is increased, due to four pulleys set on, so cooperating to the extension of said springs 13 attached on said ribs 14, said stay wire 33 drags said low rib nest 12 upward to slide four times length than the change distance between said both block bases to push said ribs 14 to open the cover; in this time, said restoring spring 4141 of the handle control device 4 is in compression state, under the action of said restoring force of said restoring spring 4141 the restoring flap 414 is pushed leftward, further to bring said button 421 to the original state.

[0030] When trying to close the present invention, said button 421 is in the normal state—un-pressed, said switcher 422 is pushed by said restoring spring 423 releasing the restoring energy to turn an angle around said pin X downward to contact with said active flaky lever 415, as closing said umbrella, as shown in FIG. 9, press down said button 421 to simultaneously push said switcher 422 to move rightward so as to push said active flaky lever 415, by means of the action of lever 415 based on the lever principle, said clasp frame 416 is pushed leftward by the low portion of said active flaky lever 415 so that said catch head 35 locked by said lug 4161 is released by said lug 4161 to free, further to move said movable block base 31 relatively to said standing block base 32 closely, and simultaneously said stay wire 33 is drew out by said low rib nest 12, said umbrella is acted by said restoring springs 13 attached on said ribs 14 of said open mechanism 1 into closing state, then by the extra force of hand exerting on said handle control device 4, said outer telescopic tube 22 of said central handle assembly 2 is locked on said switcher 422 by latching on said notch 222 with said title lug 4222 so that said umbrella is closed completely, as shown in FIG. 5.

[0031] For facilitating to low rib nest 12 sliding down, a restoring spring 15 is set upon the bottom side of said upper rib nest 11 (referring to FIG. 5).

Claims

1. An automatic umbrella, comprised of an open mechanism, a central handle assembly, wherein said open mechanism is consisted of an upper rib nest, a low rib nest and proper number of ribs attached with restoring springs; said automatic umbrella also includes a ratio mechanism and a handle control device; said central handle assembly is consisted of a couple of inner and outer telescopic tubes connected together in socket joint, and an extension spring; said extension spring is located on the inside of said outer telescopic tube and the top end of said inner telescopic tube; said ratio mechanism set upon the inside of said central handle includes a movable block base, a standing block base, a stay wire and a stick with a catch head; said standing block base is retained on the upper end of said outer telescopic tube of said central handle nearing to said upper rib nest, said stay wire is fastened on said standing block base with one end, and another end is threaded crossly said movable and standing block bases sequentially, then fastened on said low rib nest of said open mechanism; said inner telescopic tube of said central handle assembly is retained on said handle control device with the bottom end, the catch head of said stick is controlled by said handle control device.

2. An automatic umbrella as claimed in claim 1, wherein said handle control device typically includes a handle, a button assembly and a sleeve, wherein said handle has upward blind hole for putting the portion of said central handle assembly in at the top end, and a blocking portion at the upper, and next a radial opening at the middle for placing a button assembly in the hollow inner, and a restoring flap and an active flaky lever are separately hung on the both ends of said opening by two pins, said restoring flap is backed up elastically by a restoring spring at inner side, beside said restoring flap downward a slot is built upon for setting a clasp frame; by a position block via a spring locating one end, cooperating to opposite said flaky lever touching against another end, said clasp frame is set in place; said button assembly is consisted of a button and a switcher, via a pin they are connected together, meanwhile a spring is set upon between said button and said switcher; said switcher has a hollow space on the center for passing through the portion of said central handle assembly, coordinating to said switcher, a catching notch is built on the proper position at the low portion of said outer telescopic tube; on the other side, said switcher has a lug with a tilt extended coordinating to said notch of said outer telescopic tube; said button combined with said switcher is set into the hollow space of said radial opening, and simultaneously cover on the upper portion of said restoring flap; said sleeve is used for fitting said handle in, and has an U-shaped groove.

3. An automatic umbrella as claimed in claim 2, wherein, said clasp frame is a flat frame with a hollow space at the center and a lug extended at the inside.

4. An automatic umbrella as claimed in claim 1, wherein said movable block base and said standing block base individually has two pulleys mounted on.

5. An automatic umbrella as claimed in claim 1, wherein said inner telescopic tube is attached a gag on the tip end, and said outer telescopic tube has an inward flange built on the inside wall for blocking said extension spring.

6. An automatic umbrella as claimed in claim 1, wherein a restoring spring is set upon the bottom side of said upper rib nest of said open mechanism.