DE2039703A1 - Self-opening folding umbrella - Google Patents

Description

The invention relates to an automatically opening folding umbrella with a collapsible device. for the automatic opening of the stick containing the umbrella and a number of roof tang arrangements, each with a central roof pole part, an inner roof pole part, an outer roof pole part and a strut, which form a square when the umbrella is open, with the middle roof poles part substantially at right angles to the centrally arranged stick of the umbrella is held and the sides of the square on one or more Corners of the same can be displaced relative to one another and / or one or more of the sides of the square can be pushed together and are extendable so that at least one side of the square is variable in length.

Automatically opening umbrellas are known, but not as folding or pocket umbrellas. One after Kind of a pocket umbrella - shortenable, automatically opening Umbrellas do not exist yet »In the meantime, however, folding or pocket umbrellas have become widespread, so that there is now an increasing need for an automatically opening pocket umbrella. Given this

109815/0101

BATH ORIGINAL

2U397Ü3

If necessary, the invention creates a completely new one The basis is an automatically opening folding umbrella.

Therefore, an important object of the invention is that Creation of an automatically opening folding or pocket umbrella that can be opened with a single handle is, can be opened effortlessly and trouble-free at any time, good when open looks and can be neatly folded to close, has a simple structure and can be manufactured and sold at a reasonable price.

In a folding screen of the type mentioned above according to the invention provided that the devices for automatic opening a slide guide for guiding the middle roof poles part, each with one End between the ends of the middle roof pole part with this connected tension struts leading actuating slide inserted compression spring, one in the umbrella pole inserted compression spring and with the closed and pushed together umbrella with the operating slide in Have engaged detents, the engagement of the detents on the actuating slide can be released by hand for immediate and automatic opening of the umbrella.

The foregoing and other objects, advantages and features of the invention will become apparent from the following description of an embodiment based on the drawing. In this is;

Fig. 1 is a schematic representation of the roof poles arrangement a well-known pocket umbrella in the open state,

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BAD ORlGtNAL

2 shows a schematic representation of the roof pole arrangement another pocket umbrella construction when open,

3 shows a schematic representation of the roof pole arrangement the inventive automatically opening pocket umbrella when fully open,

FIG »h a schematic representation of the roof bar arrangement according to Fig. 3 in collapsed condition,

Fig. 5 is a side view of an automatic according to the invention opening pocket umbrella without cover when open and

6 shows a side view of the screen according to FIG. 5 _m in the closed state and likewise without covering.

1 shows the roof pole arrangement of a known pocket umbrella with a telescopically collapsible umbrella pole 1 consisting of several parts. At the upper end of the pole 1, a crown 2 is fixedly arranged. At the other end of the roof bar part 3, an outer roof bar part 4 is articulated. A slide 5 is slidably guided on the stick 1, and thrust struts 6 are connected to these tang enteil s 3 at a point between the ends ™ of the inner roof. Close and shortening a screen of this construction, the outer * roof poles must part k ub-er the inner roof rod part 3 umlegbar his "Accordingly, in such a structure, the roof poles, extremely difficult to form the screen by installing simple controls so that it is able to open automatically from the closed position explained above.

1098 15/0101 "

2Ü3y703

-k-

Fnitschirme with the roof pole arrangement shown in FIG. 2 raised a telescopically nufgebnu th stick 11 with a crown 22 fixedly arranged thereon. One end of an inner roof pole is on this. partly hinged 23, the other end of which is hinged to a point between the ends of a central roof pole part '.lh. The one inner end of the middle Da chstangent part Zk is held by a slide 25, and the other outer end of the middle roof pole part 2k is articulated at a link between the ends of an outer roof pole part 26 on this. The outer roof pole part 26 is in turn connected to the inner roof pole part 23 via a strut 27 at a point between the ends of the latter. In contrast to the screen according to FIG. 1, it is only necessary to open this screen to move the slide 25 without the outer roof tangent parts having to be exposed beforehand.

A screen with this structure cannot, however, be made suitable for automatic opening simply by installing appropriate actuating devices. The roof poles are arranged so that the middle roof poles part 2k is at an acute angle to the umbrella pole 21 when the umbrella is open. This arrangement is made with a view to a good appearance of the screen in profile. A considerable amount of force is required to stretch such an umbrella, particularly towards the end of the stretching process. A spring used in this case for automatic opening of the umbrella would therefore have to be extremely strong, and even after the automatic opening of the umbrella there is the risk that it will be compressed by stronger external forces. To facilitate clamping, i.e. to reduce the

15/0101

BATH ORIGINAL

■ 2Ü39703

Spamien required force, the roof aixgen arrangement would have to be designed in accordance with that shown in FIG be, with the middle roof pole part 3 '± at The open umbrella is held essentially perpendicular to the stick 31.

The force to be applied during the opening of an umbrella is explained below with reference to FIGS. 2 and 3. In the arrangements shown therein, the middle roof part 2k is held at an acute angle to the stick 21 when the umbrella is open (Fig. 2) and the middle roof part 3k is at right angles to the stick 31 when the umbrella is open (Fig. 3) »

In Fig. 3, the angle between the central roof pole part 3k and the centrally arranged floor is denoted by 0. In this case, ie, 0 «^ 0 = 90 · Furthermore, the angle between the extension of the central roof pole part 3k and a line normal to the outer roof pole part is denoted by 0 '. This angle is in the range 0 ° <0 | ^ 90 °.

In FIG. 2, the angle between the central roof pole part 2k and the centrally arranged floor is denoted by 0. Where 0 <0 == 90. Furthermore, 0 ′ denotes the angle between the extension of the central roof pole part 2k and a line normal to the outer roof pole part 26. This angle is in the range 0 ° <Q ^ s 90 °.

Assuming 0 /,> Q ₃ ^^ ^Qt ^ Q'2- Furthermore, now F is the force that is required to open the umbrella at the end of the opening process, namely the force comporientation normal to the outer roof pole part 26 or 36.

109815/0101

_6_

2Ü39703

The corresponding Krof tkoinponent en X and X of the force in the direction of the extension of the middle roof tangon partly 2'l bzAv. Jk have the following values:

X = F-cos O ^ (Fig. 3)

X : F-COS O ¹ , ". · "V

1 2 (Fig. 2).

The umbrella can therefore be opened when the force X or the force X acts on the outer roof pole part 26 or 36, respectively is exercised. The vertical force components Y and Y of the force F on the centrally arranged stick 21 or 3-L the forces that the user of the screen actually has to exert in order to open it. It is the ones on the outer roof pole part 26 and 36 acting forces with X and X denotes. Then

Y = X «cos Q ₁ (Fig. 3),
G ₂ (Fig. 2).

Since X = F'cos Θ 'and X = F'cos Θ' we get: Y = F.cos θ * * cos O;

Y., = P-COS Θ ' * COS θ .

Because besides

cos θ ^ cos θ and cos Θ '<£ .cos Θ'

1 cL 1 <~

is, follows

F'cos Θ '-cos θ <F'cos Θ' «cos & .

11 ic *

For the forces Y and Y ₁ that the user of the screen actually has to exert to open the screen, the relation Y <Y applies. When the roof poles are arranged

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is designed such that when the screen is open middle roof on gene part 3't essentially "right-angled" is held to the centrally arranged stick 31, a weaker force is sufficient to open the umbrella.

Utilizing the relationship Y ^- ^ Y .. the invention creates a folding or pocket umbrella in which the central roof pole part 3k is held essentially at right angles to the centrally arranged stick 31 containing an actuating device for the automatic opening, so that the automatic opening of the screen goes effortlessly.

The preferred embodiment of the invention shown schematically in FIGS. 3 and k has a centrally arranged stick 31 of known telescopic structure. In the example shown, the stick is divided into an upper part 31 'and a lower part 31t). An inner roof pole part 33 is articulated with its inner end 33a to a crown 32 fixedly attached to the upper end piece of the pole 31. A middle upper rod part 3k has its inner end 3k <3. attached to a guide slide 35 which can slide on the stick 31. The outer end 33 *> of the inner roof pole part 33 is pivotally connected to the central roof pole part 3k at a point between the ends thereof. The connection point of the inner roof pole part 33 with the central Dr.ehstangteil Jk is referred to as joint A in the following. One part forms the outer roof pole part to which the outer end jkh of the middle roof pole.xls 3k near the inner end 36a is articulated. The connection point of the middle roof pole part Jk with the outer roof pole part 36 is referred to as joint B in the following. This is at the inner end of the outer membrane part 36

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oino end 37η of a strut 37 hinged, which with its other Kudo nn a Hmkt between the ends of the iime-. reu Dachst aiigent ei Ijj 33 is articulated with this. The connection point of the strut 37 πι 11 the inner roof pole part 33 is referred to as joint D and that of the strut 37 with the outer roof pole part "} G as joint C.

How only. Fig. 3 is clearly visible, the roof peg arrangement is designed so that a central diameter is 1 ″ when the umbrella is open, essentially perpendicular or at right angles to the upper part Jl <\ of the centrally located.

g ^ arranged stick 31 is fetched. Because of this training

the umbrella can be opened effortlessly and with little effort. If with a thin rod arrangement according to Fig. 3 and Ί a covering on the crown 32 and on the outer roofing part 36 is attached, has the covering of the open The umbrella has an essentially circular arc-shaped profile and gives the screen a good look. However, in order to create such a good look it is indispensable that that through .the three roof pole parts and the strut formed quadrilateral is irregular, as from Figs. 3 and 4 are clear. Therefore, if at such a Roof pole arrangement the guide slide 35 is slid downwards to close the umbrella, the

[^ middle and the outer roof are either 1 "} k or 36 not

positively Z ¹ I s-iiiiiien, since the 33t tange in part by the inner roof the central Since ch rods PART "} k, the outer roof Stan Gent eil 36 and the strut 37 is formed quadrangle no parallelogram. This state is shown in phantom in Fig. k With this arrangement, the screen cannot be neatly collapsed, but on the other hand, a parallelogram formed when the screen is open would impair its appearance.

10 9 8 15/0101

BATH ORIGINAL

2U397U3

This difficulty is in the illustrated embodiment eliminated by the fact that the joint B

. Can be displaced, for example by placing the outer end ^ kh of the central roof pole part 3 '* on. a slide is articulated (Fig. 5) »which in turn is arranged on the outer rotating rod part 36 displaceably. Now can the average Dachst angerit eil "} h and the

, Outer. Dachrngen part 36 collapse, since dps joint B can be moved. This arrangement is shown in Fig. Undressed h. In this way, the screen can be neatly collapsed.

In the preferred embodiment described above, the joint B is displaceable. However, any other joint A, C or D can also be displaceable or any side of the quadrangle formed from the inner roof pole part 33 »the middle roof pole part '} h /, the outer roof pole part 36 and the strut 37 by using a displaceable part "be designed feleskopprtig. Finally, all joints A ₁ B, C and D can be slidable and all sides of the square can be designed telescopically, so that the umbrella has even smaller dimensions in the collapsed state. The prerequisite for this, however, is that the roof pole arrangement is sufficiently rigid when the umbrella is open.

In the following, he would like to invent one of the roof poles described above:! rni \. \\ connection with boat ta t igung.se i.nrl cht ι mg cn to .self I. necessary ufinen the »screen. ¹ ; on the basis of Fig. ^r > and f> in the v. i \\ /, \> - 1 m> ii (! l'läuLiu'L where -are the in I ¹ ig. 'J and ¹ I dargeM. el I I- cm ι cn tr.prochfndi. »parts .tu it same reference zn i rhon gel.ar / .en Im π t.

10 9815/0101

2 U 3 y 7 U

In the illustration, a centrally arranged stick 31 consists of an upper part JIa and a lower part 31b and has a fixed crown 32. Furthermore, the umbrella has inner, middle and outer roof tangentei Ie 33 »3 ^ and 36 and a strut 37 mif. A guide rope slides on the stick 31, and underneath it there is arranged a detent slide 38 that is likewise guided on the stick 31. A compression spring 39 is connected to an upper end 39 <'> between the pilot valve 35 and the stick inserted and with 31 a lower end 39b between the BetntigungsschiTber 38 and the stick 31st a tension strut 40 is at a lower end hO t \ articulated to the Iletätigungsschieber 3 'and hingedly connected at an upper end' TOB between the inner end "} hi \ and the joint a having average dom Dnchstnngente.il century. Near the bottom of stick 3I is. one with the ßetntigungsschieber 38 in engageable locking kl arranged in the interior of the stick 31st A catch 11a and a release button 4lb formed at the lower end of the lock hl protrude through a slot 31c formed on the lower end piece of the lower part 31b of the stick 31. The line can be brought into engagement with the lower end of the actuating slide 38. On the upper end piece of the lower part 31b of the stick 3I a resilient projection 12 is arranged, which serves as a limitation when the umbrella stick 3I is extended and for this purpose equips in a groove formed in the lower end piece of the upper part 3if> of the stick 3I when the stick closes is extended full length. In the upper part 31a of the stick 31 a compression spring 'ti is used, which causes the extension of the lower part 3Lb of the stick 31. Below the crown J2 at the upper end of the upper part JIn of the stick 31 is an attenuator Vi in the form of a spring od. (IgL. Angeo rdue t .. Between the inner roof te i L suck 33 and ¹ the central roof t suggestive i I. Jh a tension spring h 5 is arranged in such a way that

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2U397U3

that it is on top when the horizontally held umbrella is opened. The spring 45 is intended to prevent the roof rod arrangement from getting into a dead center position at the beginning of the opening process. For this purpose at least one spring h'j is necessary; Of course, two or more springs can also be used.

In use, the release button 4lb of the locking device protruding from the slot 31c is used to open the umbrella 4l pressed, the button 4Ia moving inwards and the actuating slide 38 releases. The compression spring 39 arranged between the actuating slide 38 and the guide slide 35 then expands and moves the guide slide 35 upwards. The operating slide is thereby 38 by the train of the tension strut 4θ connected to the central roof pole part 34 as well upwards, moved. At the same time, the locking of the upper part 3If of the stick 3I with respect to the lower part 31b released by the catch 4la and the upper part 31a below the action of the compression spring 4.3 arranged therein extended. By moving the two slides outwards 35 and 38 become the inner and outer roof pole parts 33 »36 and the connecting strut 37 around the corresponding Joints A to D swiveled outwards, opening the umbrella.

When opening the umbrella while holding horizontally Sto "ck 3-1 takes place, it lies at the top of the horizontally held umbrella, the middle roof pole part 34 with its entire weight on the inner roof nngcn part 33 · By such a mutual position of the middle to the inner roof pole part 34 or 33 is then the upward movement of the guide clip 35 and of the actuating slide 38 blocked, i.e. the two Roof pole parts 34 and 33 are located in one of the

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2U397Ü3

On f it was I sb cm / <;, n; u π g of the slide 35.3 $ blocking dead center cages. Sclioii went) cine nu.s that the number of roof pole arrangements forming the screen comes to the dead center position, the opening of the screen is changed earlier. One or more tension springs h ^r ) can therefore be provided in order to avoid such dead centers. In general, the Uf fnew of the umbrella takes place with the locking device pointing upwards, since the release button is mostly pressed down with the thumb. Accordingly, the tension spring h * j is provided in the illustrated embodiment of the invention nn roof, rods on the same side on which the lock protrudes. Of course, such a tension spring can also be used on roof poles other than those that have been completely introduced! be arranged.

To close the umbrella, the actuating slide 38 and thus also the guide slide connected to this via the middle roof pole part Jk and the tension strut kO is pulled downwards by hand. The guide slide 35 continuously approaches the service slide 3 $, so that the compression spring 39 arranged between the two slides 35 and 3 & is most strongly compressed in the lower end position of the slide. When the slide 35, 38 is moved away, the middle roof pole part Jk rests against the stem 31 and the inner roof pole part 33, together with the outer roof pole part 36 connected to it via the strut 37, is folded inward. When the lower part 31b of the stick Jl is retracted into the upper part 31a against the pressure of the spring hj, the lias te kl η formed on the locking device 'ti and protruding through the slot 31c in the lower part 31h of the stick 31 engages and secures in the iletäti gungsschi upper 38 so that the stick 31 is retracted. This completes the closing process. In order to ensure that the umbrella is neatly folded, one of the joints A to D or one of the roof parts, the joint H ₁ in the drawing, is designed to be displaceable .

^109815/0101 ORIGINAL BATHROOM.

. 2U397Ü3

-1 Y-

In the embodiment described in the introduction, the lower part 31b of the stick is y \. in its upper part 31 ″ can be retracted. However, it is also possible to design the upper part 31a to be retractable into the lower part 31b of the pole 31. In this case, the lock 'ti is to be provided in the upper part 31 ^ of the stick 31, an elongated slot 31b then being formed in the lower part 31b through which the hatch and the release button' ilb of the lock Wi. stand out. In this case the compression spring 43 is of course inserted in the lower part 31b of the stick 31.

The stick is not limited to one made of two parts, but it is also made of one three or more parts can be used together.

As can be seen from the above description, the invention provides a., In a sequence of movements, namely the common downward pulling of the operating slide and the guide slide, collapsible FaIt or Pocket umbrella. Pulling the slide down does this Inward pivoting of the associated with .dem guide slide middle roof pole part together with the inner roof pole part and, depending on this, pivoting the outer roof pole part inward via the connecting strut towards the centrally arranged stick so that the covering can be folded up. The screen can be fold up neatly, as this consists of the inner, middle and outer roof pole parts and the connecting strut formed a square at the moment of folding a parallelogram. With the umbrella according to the invention, opening takes place smoothly and with relatively little effort, because it is designed so that the middle roof pole part is held in the open state substantially at right angles to the stick. Finally, the inventive

109815/0101

-l'i- ■

Umbrella has the advantage that the stick is automatic extend and the umbrella can be opened effortlessly even in a horizontal position by making the first step seen tension spring the emergence of an opening of the Umbrella blocking dead punktirgo prevented.

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BATH ORIGINAL

Claims (2)

2U3y / 03 15th Γ a t ο η t a η s ρ r ü c a e Iy Automatically opening! '"Old umbrella with a to s aminen- ^ -4. Chi ebb ar en, Kinr: i chlungs to automatically open the umbrella cnlhρLt end floor and a number of roof strings on north-east, each with an inner pivot , a middle lh -chs tangent part, an outer roof st «-tilg ontoil and a strut, which form a square when an umbrella is open, noble the middle dike tan gene part is held essentially at right angles to the centrally arranged shaft of the umbrella and the Sides of the quadrilateral "at one or more corners of the same slidable against each other and / or one or more of the sides of the quadrilateral can be pushed together and pulled out so that at least one side of the quadrilateral is variable in length, characterized by the fact that the devices for automatic opening a guide slide (35) for guiding the middle roof tangerite 1 s (3 '±), each with one end CiOb) between the ends of the middle roof rodent ils (3'0 with this connected tension struts CiO) leading actuating slide (38) 1 between the guide slide (35) and when the umbrella is closed and pushed together with the operating slide (38) in engagement, the engagement of the locking can be released by hand on the actuating slide (38) for immediate and automatic opening of the umbrella. 2. Folding umbrella according to claim 1, g e k e η η ζ e i c h ne t by one or more parts between the central roof (3'i) and the inner roof section (33) arranged Tension springs Ci5) i that at the moment of the opening process of the Umbrella lie on its top. 109815/0101 2U397U3 3 · Parachute according to claim 1 or 2, characterized in that one of the corners (A, B, C, D) of the square against each other and all sides (33 »3'l» 36, 37) of the square can be pushed together and pulled out are. H. Folding umbrella according to one of Claims 1 to 3, characterized in that the outer end {"} kh) of the central thin rod part (3'i) is articulated in a slide which is slidably guided on the outer rod part (36). 1098 15/0101