CN1063524A - The shutter of in-store mini and sizing methods - Google Patents

Abstract

A kind of shutter, no matter how the window width can both match with window satisfactoryly just, can be in point of purchase sizing easily.Shutter has a back timber, all terraced case and hanging ladders, and bar one can slide into the sizing position from the position before the certain size on back timber, and all exceed partly and can separate with other parts of shutter there.Then, terraced case and continuous hanging ladder thereof slide into the position after the sizing, to form the structure of proper ratio.

Description

The shutter of in-store mini and sizing methods

The present invention relates generally to the window shelter, relates more particularly to be known as in recent years a kind of window shelter of slice shutter.

This speech of shutter is widely known by the people, and it comprises silver many horizontal directions, parallel, that adjustable angle is put in order, when being installed in the face of window, can control the light that enters room, window place according to the angle of the adjustment of the division of day and night in one day silver.Usually the width of each silver is about about one inch, and very thin, and thickness usually has only a few percent inch.

Although the slice shutter was being popularized in recent years, the various types on the market all has certain shortcoming now, can think that these shortcomings make this shutter not obtain the extensive use that its intrinsic applied characteristic should obtain just.

Specifically, existing slice shutter has two kinds basically, that is: a kind of is the fixed width type, on sale at retail store and wholesale store; Another kind of shutter for customization.

Fixed width shutter on sale has only seldom several normal widths.It does not plan in the point of purchase or buys back back change width to match just with the window that will adorn with it.Like this, if 37 1/2 inches wide windows are arranged in the client family, and the fixed width shutter has only the normal width of 36 inches and 42 inches, shutter or then than 1 1/2 inches of needed weak points, every like this end just has 3/4 inch gap to allow light to enter the room, use 40 inches wide shutters, but look not attractive in appearance, even will install to such an extent that exceed outside the window frame.In fact, adorn to such an extent that to exceed outside the window frame be infeasible, when particularly window is used curtain simultaneously.Though can buy the shutter of this class standard width with reasonable price, can think because its accommodation difference can not adapt to the various different window width of number, make its application can not reach degree to the potential demand of this very suitable window shelter.

The customization shutter also is feasible.This class shutter is in manufactory's customization, one once customized, only does one and usually once order goods.In fact each shutter all is a home built.The sale of customization shutter may need client house just can finish twice.Like this, the store sales personnel may need to measure in the client family size of required shutter.Perhaps, the own measurement size of client and offer store.No matter which kind of situation, all must order goods to factory in the shop.Usually, will transport to the shop after factory makes, store personnel will arrive and load onto shutter in the buyer family then.Perhaps, the user also can oneself install.Like this, if client with have a responsibility for entrusting to shop, and this situation is very common, store personnel just must be returned home twice to client.No matter the window size how, can obtain cooperating perfect shutter, but because the labour cost height, the cost height of factory customization particularly, the final price that client is born is too high, to such an extent as to undue expensive, the ordinary customer that all can not be had economic mind to practical purpose is accepted.

Therefore, main purpose of the present invention provides a kind of shutter, always it can match just with required window width no matter window width size, and can change sizing at an easy rate in the point of purchase, the shutter price of reserving size like this just customizes the part of shutter price, and at present, on price, can compete mutually with the normal width shutter.

Another purpose provides a kind of shutter, and it can adjust to required accurate width economically, and it does not need client to think hard or the gas of requiring great effort, definite required shutter size before only needing to buy in the shop.

Another purpose provides a kind of shutter, it can be that client changes system into accurate required width by the salesman, the salesman can be almost effortlessly, can more not require great effort than the size of cutting out the curtain of (C.I.S) type in the present ruling shop certainly, and the sort of curtain sold several ten million parts certain every year.

Another purpose provides a kind of above-mentioned shutter, wherein can eliminate all possibilities improper or dislocation of shelving of the aperture of admitting it on location short column on the removable box assembly and the back timber.

Another purpose is in above-mentioned shutter, provides a kind of and is used for making ladder rope assembly to remain on the fixing registration mechanism of aligned position with respect to going up a silver most and being attached thereto the terraced case that connects in many silvers.

Another purpose provides a kind of bottom girder assembly.It comprises an intermediate plate, and this intermediate plate can be hidden the bottom of hanging ladder attractive in appearancely and can eliminate operational difficulty when shutter shortens whereabouts length after initial sizing at present.

Above-mentioned purpose of the present invention and other objects and advantages will be seen clearlyer to explanation of the present invention from following.

The present invention includes a kind of shutter, it has a back timber, all terraced case and hanging ladders, except that one of them, position in the time of all can a position before sizing slides into a sizing in back timber, all unwanted width that exceed all can easily be removed from the remainder of shutter in this position.Terraced then case and the hanging ladder that is attached thereto slide into the position after the sizing, the structure that is in perfect proportion with the formation ratio.

Each accompanying drawing has shown the present invention more or less, wherein:

Fig. 1 is the front view of shutter of the present invention after changing sizing according to window and being contained in the window frame;

Fig. 2 is detailed front view, and for clarity sake, some parts have been cut open, and some parts have omitted, and compared to Figure 1 ratio has also been amplified.

The view of Fig. 3 for cutting open and amplify slightly than Fig. 2 along the line 3-3 among Fig. 2 basically;

The view of Fig. 4 for cutting open and amplify slightly than Fig. 2 along the line 4-4 among Fig. 2 basically;

The view of Fig. 5 for cutting open and amplified than Fig. 2 along line 5-5 among Fig. 2 basically;

Fig. 6 is the right view of Fig. 5;

Fig. 7 is the end-view of back timber;

Fig. 8 is the bottom plan view of intermediate plate shown in Figure 7;

Fig. 9 is the zoomed-in view of the terraced box assembly among Fig. 2;

Figure 10 is the end-view of terraced box assembly, for clarity sake, has omitted some parts;

Figure 11 is the sectional view of the fixed block of terraced box assembly, for clarity sake, has omitted some parts;

Figure 12 is the top plan view of the fixed block of terraced box assembly;

Figure 13 is the top plan view of bottom girder intermediate plate;

Figure 14 is the sectional view of bottom girder intermediate plate;

Figure 15 is the elevation of shutter after changing sizing of another embodiment of the present invention, has shown the hanging ladder and the terraced case fixed mechanism of another kind of form;

The zoomed-in view of Figure 16 for cutting open along the line 16-16 among Figure 15 basically;

The zoomed-in view of Figure 17 for cutting open along the line 17-17 among Figure 15 basically;

The amplification view of Figure 18 for cutting open along the line 18-18 of Figure 15 basically;

Figure 19 is the amplification vertical view of Lower Half of the terraced box assembly of Figure 15;

The sectional view of Figure 20 for cutting open along the line 20-20 of Figure 19 basically;

The same numeral of like in each accompanying drawing.

Referring to Fig. 1, window frame represents with 10, of the present invention in the shop of selling adjustable shutter always represent with 11.Shutter comprises bar chip architecture 12, and it for example constitutes with the silver shown in 13,14,15 by many.The bar chip architecture is suspended in midair from back timber assembly 16, in this example, realizes suspention by three ladder craning assemblies 17,18,19.Back timber assembly 16 available any proper device (not shown)s own are installed on the installation surface easily that links to each other with window frame.In this example, shutter is contained in the window frame, and window light has been blocked on synthetic plane.If also will block illustrated shutter with curtain except shutter, then this mounting method is very effective.By transferring of constituting of flexible strand-on receive mechanism and always represent with 20.As known in the art, transfer-on to receive mechanism 20 can be a single rope, its two arm links to each other with left and right sides ladder craning assembly 17,19, two ends are bound in below the minimum silver 15, and hide in bottom intermediate plate 21,22.The termination that has similar bottom intermediate plate to be used for hiding middle hanging ladder 18 at 23 places, three bottom intermediate plates are connected in bottom girder 24, and bottom girder has end cap 25,26.Bull stick 27 is used for changing the angle of inclination of each silver that constitutes the bar chip architecture.

Now referring to Fig. 2, it shows adjustable shutter of the present invention in greater detail, is convenient to make lath be horizontal in order to describe.

In the point of purchase, such as the shutter that takes off from shelf at retail store, before adjusting to preset width, its width equals the solid line part and double dot dash line part sum shown in Fig. 2 the right.Like this, part 13A forms silver 13 with exceeding by 13 expressions that part of at first; Bottom girder 24 comprises that at first the length of bottom girder 24 adds the length of double dot dash line part 24a, or the like.The left end cap of beam represents that with 28 the right-hand member cap is represented with 29.Certainly if, back timber left and right sides end cap can be pre-installed on the two ends of back timber, but like that, needs right-hand member cap 29 is taken off before setting up width dimensions.So preferably, end cap 28 and 29 is packed separately, refills on the back timber after finishing the size setting.

Left side ladder craning assembly 17 is made of a pair of siding track 32,33, and both upper ends are fixed on the fixed block 34 of left side ladder box assembly 35, and the lower end is integrated in the chamber that forms between the inner surface of the soffit of bottom girder 24 and left bottom intermediate plate 21 and cannot see.Left side ladder craning assembly 17 also comprises many crosspieces 36,37,38 of supporting each silver, and this sees the most clearly in Fig. 3.By first transferring of forming of a flexible strand-on receive mechanism and represent with 40.Rope passes the aperture of the mutual vertical alignment on each silver, and rope 40 just is in line and dangles like this.The bottom of rope is tied to form tieing in the bottom surface of bottom girder 24 bottom, is collected in the chamber that forms between the inner surface of the bottom surface of bottom girder 24 and left bottom intermediate plate 21.Can notice, when flexible strand 40 is applied one make progress pulling force the time, bottom girder 24 will move up up to leaning against on that minimum root silver 15, the bottom girder of closing and silver are received up up to shutter fully with higher silver closing successively subsequently, and each silver is squeezed between the end face of the bottom surface of back timber assembly 16 and bottom girder 24.Can notice that from Fig. 3 some are positioned the left side of flexible strand 40 certain among each crosspiece 36-38, certain some be positioned its right.As a result, stoped ladder craning assembly 17 swinging in the horizontal direction, and made it to keep vertical consistent with flexible strand 40.

In Fig. 4, see the most clearly, though the right ladder craning assembly 19 is not exclusively the same, similar with left side ladder craning assembly 17.

Equally, the right ladder craning assembly is made of a pair of siding track 42,43, and both lower ends are between the upstanding sidewall 44,45 of bottom of right side intermediate plate 22, in the chamber that the termination forms between the inner surface by the bottom surface of bottom girder 24 and intermediate plate 22.

Many ladder shelves represent that with 46,47 and 48 each ladder shelves is being supported continuous silver, and silver is represented with 13,14 and 15 respectively in this example.As can be seen from Figure 4, all terraced gears in transfer-on receive the left side of mechanism, this with Fig. 2 in identical, but flexible strand is with 49 expressions.From Fig. 4, see the most clearly, transfer-on receive mechanism 49, promptly the lower end of flexible strand is tied to form tieing under the bottom surface of bottom girder 24, ensconces in the chamber between the inner surface of the bottom surface of bottom beam 24 and intermediate plate 24.

It should be noted that compare with traditional structure, the bottom surface of bottom girder 24 is flat, similarly, bottom girder intermediate plate 21-23's and end cap bottom surface also is flat.This can lie on the windowsill bottom surface of shutter, thereby can avoid hanging down near the inwardly oblique of those several silvers of bottom girder, and this is clearly in existing structure, because for the consideration in the design, their bottom surface is a circular arc.

The upper end of each siding track 42,43 of hanging ladder is passed the bottom of back timber assembly 16 and is fixed on the fixed block 52 in the terraced box assembly in the right 53.For clarity sake has omitted in Fig. 3 and Fig. 4 hanging ladder siding track 32,33 and 42,43 upper end, has more clearly illustrated these ends and its annexation of fixed block separately in Fig. 2,9 and 12.

Bull stick 27 can be a traditional structure, and there is lifting bolt 55 its upper end.Lifting bolt hangs on up the hook 56, and this sees the most clearly in Fig. 2 and Fig. 5, and hook 56 is made one with a cylindrical member 57 again, and the top of cylindrical member 57 is fixed in the transmitting gear 58.Transmitting gear 58 is meshed with the gear 59 of axis horizontal, and gear 59 is fixed together with the commentaries on classics bar 60 of level again.It is fastening with transmitting gear 61 to change bar 60, and gear 61 is mounted to again and can rotates in turning cell 62, and turning cell 62 is fixed on the inside of back timber assembly 16, and this sees the most clearly in Fig. 5.To change bar 60 be traditional type with respect to the concrete structure of the bull stick at the angle of inclination of horizontal direction and relevant assembly thereof since be used for changing, and just is described no further here.

Shown the terraced box assembly 53 in the right among Fig. 9-12 best.This assembly comprises half shell 64,65 of a pair of basic symmetry, and the two halves shell structurally interosculates into housing by a kind of frictional fit, as Figure 10 clearly shown in.Also clearly show among Figure 10 simultaneously, terraced box assembly comprises a dumb-bell shape cylinder 66, when two and half shells 64 and 65 combined, cylinder 66 was in place and form a confession and transfer-on receive the smooth surface that the rope 49 of mechanism slips over thereon.A pair of attached column body 86,87 respectively from about half shell 64,65 to upper process, formed terraced box assembly be locked in device in the back timber assembly, this will narrate in the back.

Fixed block 52 comprises a centre thick post portion 68 and the less column part 69,70 of two ends diameter.Scope on the terraced slottingly tank shell of cylindrical end 69 and 70 is about in 270 ° the round hole, and Figure 10 has shown in the described circular open.The first half of intermediolateral column portion 68 excises at 71 and 72 places, and Lower Half is excised at 73,74 places, and this sees the most clearly in Fig. 9,11 and 12.Qie Chu result has formed last ridge 75 and following ridge 76 like this.In ratio, each ridge shortens thin neck at 77,78 places, makes groove at 79 and 80 places.

The last terminal 82,83 of side of the ladder rail 42,43 is being passed groove 79, clamping after 80s in clip 84,85, thereby the right ladder craning assembly 19 is fixed on the terraced box assembly 53 in the right.To notice that intermediolateral column portion 68 makes symmetry, like this at when assembling venturi portion 77 or 78 whether just inessential above the axis of intermediolateral column portion.

Comprise the front and back walls 92,93 that a pair of perpendicular is erect at the bottom intermediate plate shown in Figure 13 and Figure 14, they are linked together by basin shape diapire 94.End wall is by 95,96 expressions.

Each front and back walls has an indent notch 97,98, and the size of each notch all close-fitting ground is admitted the bottom free end of a hanging ladder siding track 42 or 43.Will be appreciated that the distance between the top edge of front and back walls 92,93 can guarantee that intermediate plate and bottom girder 24 constitute frictional engagement closely when intermediate plate being press fit on the bottom girder 24 with hand.

Now referring to the embodiment of Figure 15-20, a kind of distortion of the shutter that can adjust in the shop of the present invention is generally by 100 expressions.Bar chip architecture 101 comprises many silvers, for purposes of illustration, and with 102,103,104 three of representing wherein.The back timber assembly always represents with 105 that there are two ladder craning assemblies 106 and 107 in the two ends, the left and right sides of shutter 100.

Flexible strand transfers-on receive mechanism's (flexible strand is 108) here an end link to each other with left side ladder craning assembly 106, the outer end links to each other with the right ladder craning assembly 107, the two ends of flexible strand below bottom girder 24 the knotting of 109 places and be in the chamber below the intermediate plate 21 of bottom.The upper end has the bull stick of hook to be suitable for matching with the aperture 110 of turning handle 111, and to change the angle of inclination of silver 102-104, this can see too clearly from the description of front and back.

As the embodiment of Fig. 1-14, the silver among the embodiment shown in Figure 15-20 also changes into and is horizontal, and the part 24a that exceeds that exceeds part 102a, 103a and 104a and bottom girder 24 of silver is removed.Referring now to Figure 16, can see that back timber assembly 105 comprises a back timber shell 112, shell 112 suitably cut a part with hold rotating mechanism and transferring-on receive mechanism, these need not describe in detail.The right ladder craning assembly 107 comprises left terraced rail 113 and right terraced rail 114.Ladder shelves are topmost represented with 115, are right after following ladder shelves and represent with 116.117 expressions are the hanging ladder retainer that is bent upwards of silver 102 topmost, and retainer has the marginal portion or is referred to as clip 118,119, and clip 118,119 is admitted the holder of silver 102 two edges with formation to palintrope.As can be seen from Fig. 18, each outer rim of clip 118,119 has notch holding terraced rail 113,114, thereby prevents to go up most the relative motion between silver 102 and the ladder craning assembly 107.The upper end of ladder rail is fixed in the thick post portion 68 of fixed block.In this example, the end 114a(of the right ladder rail 114 is on the left side in Figure 18) be fixed in the thick post portion 68 of fixed block 68 by a clip 120.Similarly clip 121 is fixed to the end of left side ladder rail 113 on the fixed block 68.

Fixed block 68 is contained in the box assembly 124.Box assembly comprises the first half 125 and Lower Half 126.

The first half 125 of case comprises top board 127, and single dead bolt 128 raises up from top board 127.Fixed leg 128 is inserted in the hole 129 on the top board 130 of back timber shell.End plate represents that with 131 corner post is represented with 132,133.Corner post is thicker than top board, because have smooth limit pin (not shown) to extend downward position in the mating holes on the corner post that inserts Lower Half from each corner post, this will be described later.End plate 131 has smooth groove to admit fixed block 68 at 134 places.

Casing Lower Half 126 comprises a base plate 135, makes one on it and is essentially oval-shaped opening 136.Antetheca 137, rear wall 138, left wall 139 and right wall 140 extend upward and contact with the lower edge of each wall of the casing first half 125 from base plate 135.Make on the corner of each thickening of wall in order to admit the jack of the limit pin of making on the above-mentioned first half.A downward protuberance is outwards made at the position that will be noted that the centre nearly 2/3rds of base plate 135, this protuberance back timber assembly bottom between inward flange 142,143, box assembly pinned and prevent its inside motion outward.As shown in figure 15.A pair of dimple 144,145 is used for holding lock 146, transfers-goes up to receive to restrict and walk around pin 146.

Now referring to Figure 15 and Figure 17, stablize piece and represent with 148, this stable piece is the structural integrity that is used for preventing the 149 downward deflections of spline bar and keeps back timber assembly left end.

Of the present invention use and operate be described below.

When taking out this adjustable shutter from packing the shop-assistant of the point of purchase, its width is the width from the leftmost edge of Fig. 2 to the rightmost edges of the double dot dash line part 13a-15a of this figure.In this example, the buyer provides the size of measuring to the shop-assistant, need be with the super wide part of assembly, and promptly the super wide part 24a of super wide part 13a, 14a, 15a and the bottom girder of bar chip architecture removes.

Should be noted that the right-hand member of the shutter back timber assembly 16 among Fig. 2 does not have perforate 89 when taking out from packing, the right ladder case 53 can rely on its frictional fit to slide to the left side and the right in the shell that is formed by back timber assembly 16.If the shell of back timber assembly is made of plastic, it is enough to the distortion that allows terraced box assembly 53 to slide within it with generation, even reach also can be like this more than case shell 64,65 end faces for the lug boss that is made of two halves projection 86,87.

When the shop-assistant took out preparation adjustment size with shutter from packing, best the right box assembly and the hanging ladder that is attached thereto were positioned at double dot dash line position as shown in Figure 2 at least.Otherwise the initial position (this position is in the right somewhere of solid line position shown in Figure 2) when first step operation is packed the right box assembly exactly from taking out slides into the double dot dash line position of Fig. 2, promptly carries out translation.Further will be appreciated that, during this time, the transferring of the right-on receive mechanism 49 and also do not pass silver, on each silver except that have for the left side transfer-on receive the hole of mechanism's 40 perforation and also do not have other hole.

Back timber, silver and bottom girder all also closely are superimposed together.Measure the super wide material that need remove,, be preferably in the once-through operation and be cut into the excision of the right super wide part.The right super wide part 24a of the right-hand member super wide part 16a of back timber assembly 16 and the super wide part 13a-15a of each silver and bottom girder 24 cuts away simultaneously.

After being connected on this operating procedure, when ladder craning assembly 19 is positioned at double dotted line position shown in Figure 2, passes bottom girder 25, each silver 13-15, back timber assembly 24 and get out a single hole, for the purpose of stable, preferably order boring according to this.The hole that gets out has like this constituted hole 89.

Then, the right ladder box assembly 53 and the ladder craning assembly 19 that is attached thereto are slided into the solid line position of Fig. 2 from the double dot dash line position of Fig. 2.When the right ladder box assembly arrived its final position, the lock pin that is formed by two halves pin 86,87 snapped in hole 89, thereby made the right hanging ladder box assembly 53 with respect to back timber assembly 16 location and fixing.

Then, the right is transferred-on receive mechanism rope 49 wear the dumbbell pin 66 of walking around the terraced box assembly 53 in the right and pass the aperture that aligns on each silver, also pass the end face and the bottom surface of bottom girder 24 simultaneously.Then, as shown in Figure 4, rope is made a call to a tieing below bottom girder, like this to transfer-on receive that mechanism 20,49 applies make progress or be called the power of receiving and just will make bottom girder and the rise of each silver.

After tiing a knot below bottom girder in rope 49 termination, the free bottom of hanging ladder siding track 42,43 and 49 the tieing of restricting are tied, the more vertical part in the bottom of terraced rail is aimed at the indent notch on the intermediate plate vertical edges, and the intermediate plate clinching to bottom girder.

Final step can be contained in the 90 usefulness clips 91 of the back timber cover fillet among Fig. 7 between left and right sides box assembly 35 and 53, and the profile of clip 91 can be seen the most clearly in Fig. 7 and Fig. 8.Further, if desired, the limit, the left and right sides of the assembly of the segment cover fillet of suitable profile can being packed into, promptly respectively from the left side and the right near terraced box assembly 35 and 53, and cut suitable part, receive the exposed ends of restricting to hold bar-turning mechanism and to transfer-go up.

Will be appreciated that shutter back timber assembly end cap 28,29 can be overleaf, one of lateral surface and end face or all go up perforate so that install get home on any suitable support surface of window.

The embodiment of Figure 15-20 is with the same manner operation, and in addition, silver supports intermediate plate 118 can also make terraced rail remain on position correct, absolute vertical alignment, thereby guarantees effectively operation.

Shutter is received in and puts into together in original packing after carrying out above-mentioned size adjusting, gives client and takes back the installation of returning home.

Although illustrated and described preferred embodiment of the present invention, clearly those skilled in the art can carry out various variations within the scope of the present invention.Therefore, when making an explanation according to relevant prior art, the scope of the invention is only limited by the accompanying Claim book, and the specific embodiment that is not subjected to illustrate here and describe is limit.

Claims (12)

1, a kind of shutter can change size surely to specific width in the shop when buying and takes home, and described shutter comprises:

Many silvers that shorten,

The back timber that can shorten,

At least two are used for from the ladder craning assembly of back timber support silver,

In the described ladder craning assembly first is fixed on an end of back timber, prevents the relative motion of described first ladder craning assembly with respect to back timber,

In the described ladder craning assembly second is supported on but is not fixed in back timber but can sliding on the other end of back timber and the position between first ladder craning assembly with respect to back timber.

2, shutter as claimed in claim 1 is characterized in that, second ladder craning assembly can slide to two rightabouts from its initial position,

Therefore, described second ladder craning assembly is shortening silver and back timber (if necessary) before and always can be placed in the not cut-out of bar chip architecture afterwards.

3, shutter as claimed in claim 1 is characterized in that, second ladder craning assembly comprises a hanging ladder and the terraced box assembly that hanging ladder is connected thereto,

The ladder box assembly is connected in back timber slidably.

4, shutter as claimed in claim 3, it is characterized in that, terraced box assembly and back timber comprise one after selected good desired location and this terraced box assembly move to its final position with respect to back timber with the second terraced box assembly with this terraced box assembly and the back timber mechanism of locking mutually.

5, shutter as claimed in claim 4 is characterized in that, terraced box assembly comprises a projection in the recess that can be locked in back timber.

6, shutter as claimed in claim 5 is characterized in that, thus back timber can elasticity bend terraced box assembly can be slided and can not lock mutually along back timber, match with recess on the back timber until the projection that slides on the terraced box assembly.

7, shutter as claimed in claim 6 is characterized in that, the unique recess of projection that is used to cooperate the terraced box assembly of second ladder craning assembly is the recess that described terraced box assembly and back timber is locked mutually the relation of finally interfixing that becomes terraced box assembly and back timber.

8, a kind ofly shorten the method for shutter in purchase place, shutter has many silvers that shorten, a back timber and is used for hanging at least the first and second ladder craning assemblies that hold silver from back timber, it is characterized in that its step comprises:

First ladder craning assembly is fixed on an end of back timber, thereby prevents that first ladder craning assembly from moving with respect to back timber,

Select the final position of second ladder craning assembly with respect to back timber,

Silver is shortened Len req, and

Then second ladder craning assembly is fixed on another end of back timber.

9, method as claimed in claim 8 is characterized in that, second ladder craning assembly is moved to a temporary position between the final position of first ladder craning assembly and second ladder craning assembly before silver is shortened Len req.

10, method as claimed in claim 9 is characterized in that, after silver shortens Len req, second ladder craning assembly is moved to its final position from temporary position.

11, method as claimed in claim 10 is characterized in that, after silver shortens Len req, will transfer on one and to receive mechanism and be operably connected to silver and back timber.

12, method as claimed in claim 11 is characterized in that, after silver shortens Len req, will transfer on one and to receive mechanism and be operably connected to silver and back timber.

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