KR950002324B1 - Fully automatic collapsible umbrella - Google Patents

Abstract

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Description

Fully automatic folding umbrella

1 is a cross-sectional view of the front of the fully automatic folding umbrella according to the present invention.

2 is a cross-sectional view illustrating a fully automatic umbrella in a collapsed state for preliminary steps or storage before unfolding.

3 is a cross-sectional view illustrating an umbrella in an unfolded state.

4 is an exploded perspective view of a handle and a pushbutton actuator.

5 is a perspective view of an inner tube and two steel wires and associated members.

* Explanation of symbols for main parts of the drawings

1: umbrella stand 2: handle

3: detent 4: inner tube

5a: upper steel wire 5b: lower steel wire

6: telescopic spring 7: umbrella folding spring

8 ; Umbrella spread spring 9: upper tube

10: intermediate tube 11: lower tube

22: positioner 23: heavy member

25: connecting body 27: sliding body

32: sleeve 39: umbrella structure

40: sheet 43: operating member

47: holding member 52: push button

The present invention relates to an automatic umbrella, and more particularly to a folding umbrella that can be automatically folded and unfolded.

In general, so-called auto umbrellas can only be unfolded rather than automatically folded. Although the applicant's Korean Patent Nos. 24214, 24215, and 34231 describe a series of automatic umbrellas that can be folded and unfolded automatically, it is necessary to open an umbrella due to the drawback of structural design and arrangement of several compression springs. The operating force is so great that some people cannot operate it with one hand, and as a result, production and sales have been postponed for a long time.

The applicant also filed Korean Patent Application No. 91-13172, "Lightweight fully automatic umbrella" from July 31, 1991, which can be easily operated with one hand but is not suitable as a folding umbrella.

Accordingly, it is an object of the present invention to provide a fully automatic folding umbrella that can be easily folded and unfolded with one hand through one pushbutton actuator.

This object is achieved by a folding umbrella according to the present invention, wherein the umbrella of the present invention includes a polygonal upper tube, a circular intermediate tube and a lower tube overlapping each other, an elastic spring installed between the upper and lower tubes, the upper and A hollow umbrella stand including an umbrella folding spring installed between the middle pipe and upper, middle and lower rings; A handle including a holding member for controlling the expansion spring in a compressed state where energy is accumulated, and having an actuator for performing folding and unfolding operation of the umbrella, the handle being provided on the lower outside of the lower pipe; A detent provided on an upper portion of the upper pipe to control the umbrella folding spring in a compressed state where energy is accumulated; An inner tube having a polygonal fixing member fixed in the upper tube to prevent vibration of the umbrella stand, and a positioning device for fixing the upper tube; The upper steel wire is provided with a sliding member for controlling the action of the detent in the upper end in the connecting body, and the lower steel wire is operated to perform the umbrella folding operation by the actuator at the lower end, and the two connected to be movable to each other by the connecting body. The steel wire of; An umbrella spread spring installed between the middle and lower rings; It consists of an umbrella structure.

Another object of the present invention to provide a folding umbrella with a safety device on the outside of the upper end of the upper tube under the upper ring to maintain the structure of the umbrella to prevent the umbrella unfolded in the folded state. will be.

The above and other objects, features, and effects of the present invention will become apparent from the following detailed description of the preferred embodiments of the present invention shown in the accompanying drawings.

In FIG. 1, the fully automatic folding umbrella of the present invention mainly includes an umbrella stand 1, a handle 2, a detent 3, an inner tube 4, a pair of steel wires 5a and 5b, and an elastic spring 6 ), An umbrella folding spring 7 and an umbrella spreading spring 8. The umbrella stand 1 includes an upper tube 9, an intermediate tube 10, and a lower tube 11. The upper tube 9 generally has a cross section of polygon, for example hexagon, while the middle and lower tubes 10, 11 each have a circular cross section. A hole 12 is formed in the upper part of the upper tube 9, and is connected to the upper ring 13 by, for example, a pin 14 at the upper end thereof. The lower portion of the upper tube (9) is formed with a double position hole (15) is coupled to the plug 16 at the lower end. The intermediate tube 10, which is superimposed around the upper tube 9, has a flange 17 circumferentially at its upper end, and a dual position hole 18 (shown in FIGS. 2 and 3) at the upper end thereof, Holes 12 'are provided in the vicinity, and an inward projection 19 is formed at the lower end. A compressible umbrella folding spring 7 is accommodated in the space between the inward projection 19 and the plug 16 of the upper tube 9.

The inner tube 4 is fixedly coupled to the plug 20 at the lower end and has a positioner 22 and a fixing member 23 at the upper end. The positioner 22 is composed of a double hook portion 24 formed on a spring plate. The holding member 23 has a polygonal, for example hexagonal, cross section corresponding to the upper tube 9 (clearly shown in FIG. 5), and the upper tube 9 to prevent the positioner 22 from vibrating. Is fixed in the A pair of steel wires are accommodated in the inner tube 4 and protrude into the inner tube. The pair of steel wires is composed of an upper steel wire 5a and a lower steel wire 5b movably connected to each other by a connecting member 25. The connecting body 25 is provided in the inner tube 4, and two substantially oblique grooves are formed for accommodating the steel wires 5a and 5b, respectively. The lower end of the upper steel wire 5a and the upper end of the lower steel wire 5b are each bent in a range limited by the connecting member 25. The lower end of the lower steel wire 5b is also bent almost 90 degrees to form the end hook 26. The upper steel wire 5a has an upper end coupled to the sliding body 27, which also has a polygonal, eg hexagonal cross-section around it to conform to the shape of the upper tube 9 to prevent vibration. Has The sliding member 27 is formed with a central concave inclined surface 28 having a rounded lower end 29. The intermediate ring 30 and the lower ring 31 are installed on the outside of the sleeve 32 which is slidable relative to the umbrella stand 1. The compressible umbrella spread spring 8 is accommodated in a space between the intermediate ring 30 and the lower ring 31 on the outside of the sleeve 32. The lower end of the spring 8 is fixed to the collar 33. A buffer spring 35 is installed below the flange 34 at the bottom of the sleeve 32. The lower end of the lower ring 31 is formed with a locking member 36 and a corresponding groove portion 37. The locking member 36 is usually biased outward by the spring 38.

Umbrella structure 39 is similar to the prior art and pivotally connected to the upper ring 13, the intermediate rim 30 and the lower ring 31, respectively.

Also in FIG. 4, the handle 2 includes a seat 40 including a central hole 41 into which the lower tube 11 is inserted and a passage 42 for receiving the support 44 of the operating member 43. Accepts an actuator consisting of The support 44 is formed with a notch 45 for receiving the return spring 46. A beam-shaped retaining member 47 protrudes from the sheet 40, and the retaining member is provided with a groove 48 on an opposite horizontal side. The upper end of the actuating member 43 is provided with a corresponding wing-shaped protrusion 49 that does not coincide with the groove 48 at normal time. Under the operation member 43, there is provided each plate 50 having a hole 51 through which the end hook 26 of the lower steel wire 5b penetrates therebetween. On the outer side of the operating member 43 of the handle 2, a push button 52 having a pin 53 coupled to the insertion hole 54 on the operating member 43 is provided.

The umbrella according to the invention is also provided with a safety device under the upper ring 13 at the upper end of the upper tube 9. The safety device includes an upper loop 55, a lower loop 56, and a plurality of connecting rods 57 connecting them to each other, which are slidable outside the upper tube 9. When the umbrella is in the folded state, the safety device is biased downward by the operating spring 58, to prevent the accidentally unfolded by regulating the umbrella structure (39).

A fully folded state of the present invention folding umbrella of the present invention having the above-described structure is generally shown. In the preliminary operation for the umbrella to be unfolded, the user first grabs the handle 2 and pushes the upper ring 13 from the top of the umbrella against the ground or wall or the other hand of the user, respectively, the intermediate tube 10 and the lower tube 11, respectively. A slight force is applied to move the upper tube 9. In this process, the umbrella folding spring (7) and the expansion spring (6) is compressed, as shown in FIG. In this state, the locking member 36 of the lower ring 31 is disposed on the seat 40 in the handle 2 by the holding member 47 to fasten the lower tube 11 to the fixed position. . That is, the expansion spring 6 is kept in a compressed state. At this time, the intermediate tube 10 is moved upward to approach the lower loop 56, to react to the spring 58 to move the safety device upward. Thus, the umbrella roll structure is released in a regulated state. The sliding body 27 on the upper end of the upper steel wire 5a is also pushed upward by the positioner 22 so that the concave inclined surface 28 receives the detent 3 and pushes it outward. The hole 12 and the hole 12 ′ coincide with each other to fix the intermediate tube 10 in a fixed state. That is, the umbrella folding spring 7 is kept in a compressed state.

In the unfolding operation, the pushbutton 52 is operated slightly upward to push the operating member 43 (also shown in FIG. 4), and then the locking member 36 to be released from the holding member 47. ), The wing-shaped protrusion 49 is moved to the position of the groove 48 so as to be pressed by the operating member 43. The push button 52 is returned to its original position by the action of the return spring 46. As shown in FIG. 3, as soon as the locking member 36 is released, the lower tube 11 is moved downward by the action of the expansion force by the elastic spring 6. Since the handle 2 is held by a hand (not shown), the upper tube 9 and the intermediate tube 10 are actually moved upward with respect to the lower tube 11. At this time, in the upward movement of the intermediate ring 30 and the lower ring 31, the umbrella spreading spring 8 is expanded and the umbrella structure 39 is pivoted to open. Thereafter, the double hook portion 24 of the positioner 22 is fixed in the coincident double positioning holes 15, 18, 15 'to fix the lower tube 11 and prevent it from vibrating.

When the folded umbrella is folded, the push button 52 is operated downward, and the end hook 26 of the lower steel wire 5b is lowered below the operating member 43 by the angle plate 50 and then pushed. The button 52 is returned to the normal position by the return spring 46. The sliding body 27 is biased inward by the upper steel wire 5a. At this time, the intermediate tube 10 is moved downward with respect to the upper tube 9 by the action of the expansion force generated by the umbrella folding spring (7), and at the same time pushing the positioner 22 inwards sleeve (32) And the intermediate ring 30 and the lower ring 31 are moved downwardly through the flange 17 around each other, thereby compressing the umbrella spread spring 8.

Next, the umbrella structure 39 is folded to be folded. The lower loop 56 of the safety device is pushed downward by the spring 58 and is held around the umbrella structure 39 in a state as shown in FIG.

As described above, the arrangement and structure of the fully automatic folding umbrella according to the present invention can be operated lightly. Moreover, the countermeasure is that the springs 7 and 8 are prepared in a compressed energy accumulation state before the umbrella is opened or folded, so that the operation is quick and reliable.

Although the present invention has been described in detail with reference to only preferred embodiments, it will be understood by those skilled in the art that various improvements, changes, and modifications may be made without departing from the scope and spirit of the invention.

Claims (7)

A fully automatic folding umbrella comprising: a polygonal upper tube having a hole at the upper end and a positioning hole at the lower end, a circular intermediate tube having a hole at the upper end and a positioning hole at the middle, a circular lower tube having a positioning hole at the upper end, A hollow umbrella stand including an upper ring, an intermediate ring, and a lower ring, an elastic spring installed between the upper pipe and the lower pipe, and an umbrella folding spring provided between the upper pipe and the intermediate pipe; A handle including a holding member for controlling the expansion spring in a compressed state and an actuator for carrying out a folding and folding operation, the handle being provided at an outer lower end of the lower tube; A detent provided on an upper portion of the upper tube to control the umbrella folding spring in a compressed state; An inner tube having a locator for fixing the lower tube by coinciding with and engaging with the positioning holes of the upper tube, the intermediate tube and the lower tube; A sliding member for controlling the operation of the detent is provided at the upper end of the upper steel wire in the connecting body, and the lower steel wire is operated to perform an umbrella folding operation by the actuator at the lower end, and is movable by the connecting body. Two steel wires connected securely; An umbrella spread spring installed between the intermediate ring and the lower ring; Fully automatic folding umbrella, characterized in that consisting of umbrella structure. The fully automatic folding umbrella according to claim 1, wherein the locator further includes a polygonal fixing member fixed in the corresponding polygonal upper tube to prevent vibration of the umbrella stand. 2. The fully automatic folding umbrella according to claim 1, wherein the sliding member has a polygonal concave shape and a central concave inclined surface having a rounded lower end. The fully automatic folding umbrella according to claim 1, wherein a sleeve is provided between the umbrella spreading spring and the umbrella stand. 2. The fully automatic folding umbrella according to claim 1, wherein the positioner includes a double hook portion formed on a spring plate, and the positioning holes of the upper tube, the intermediate tube, and the lower tube are double holes, respectively. 2. The apparatus of claim 1, wherein the actuator comprises: a seat including a central hole into which the lower tube is inserted, a passage, and a retaining member having grooves on opposite horizontal sides thereof; An actuating member having a notch for accommodating a return spring and having a support portion accommodated in the passageway, each of which has a wing-shaped protrusion at an upper end and a respective plate engaging at the lower end with the lower end of the lower steel wire; Fully folded umbrella, characterized in that it is pushed upwards or downwards to perform the operation of folding and unfolding the umbrella and having a push button coupled with the operation member. The upper end of the upper pipe of the upper pipe under the upper ring, according to claim 1, wherein the umbrella structure is normally biased downward and is released by upward movement under operation of the intermediate pipe in order to prevent accidental unfolding. Fully folded umbrella, characterized in that also provided with a safety device installed on.