CN1834400A - Ladder - Google Patents
Ladder Download PDFInfo
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- CN1834400A CN1834400A CN 200510080288 CN200510080288A CN1834400A CN 1834400 A CN1834400 A CN 1834400A CN 200510080288 CN200510080288 CN 200510080288 CN 200510080288 A CN200510080288 A CN 200510080288A CN 1834400 A CN1834400 A CN 1834400A
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- ladder
- pedal
- card
- leading section
- latch
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Abstract
The invention relates to a ladder, which can be kept on the end of compartment of truck or the upper end of compartment plate via itself. Wherein, the upper end of ladder (2) via connecting element (4) can be folded to connect one end of pedal (3), while the front of said pedal (3) is mounted with a clamp element (5) that clamped on the clamping parts as the compartment plate (12).
Description
Technical field
The present invention relates to a kind of ladder device, this ladder device is use such as to loading thing on the truck or when truck unloads goods or at operation post up and down the time.
Background technology
Past, when the goods of packing on the truck, when the compartment of truck is higher, perhaps when the truck board that is founding the compartment does not put down and packs operation into, leaned against on the compartment of compartment board with ladder is perpendicular, perhaps common operation is leaned against on upright the motionless compartment board with ladder is perpendicular, and about this ladder one side, the operation of packing on one side, but because operation only is perpendicular end or perpendicular the leaning against on the upper end of compartment board that leans against the compartment with ladder, institute not thinks falls operator's ladder when ladder up and down, someone among the operator must keep ladder, thereby needs supernumerary's hand.
Summary of the invention
The present invention is point in view of the above-mentioned problems, and providing a kind of does not need the operator to keep ladder singly when using, but can only remain on ladder device on the compartment board etc. of truck by himself making the ladder card in advance.
Add the reference symbol of embodiment described later below, to describing for the mode that solves above-mentioned problem.Promptly, technical scheme 1 of the present invention is characterised in that, can connect an end of pedal 3 in the upper end of ladder 2 by means of connecting component 4 foldedly, and on the leading section of this pedal 3, be provided with by card and end at the compartment board 12 of truck T etc. by the latch for printed circuit on the fastener 5.
The reference symbol of additional below embodiment described later describes the effect of the invention that forms by above-mentioned settling mode.Promptly, according to technical scheme 1 of the present invention, by being under the horizontal state at pedal 3, make latch for printed circuit 5 card end compartment board 12 grades at for example truck by fastener on, ladder 2 just is maintained at stable status, therefore, do not need the people to keep ladder, but can be just under such state ladder up and down.In addition, because in this ladder device, on the upper end of ladder 2, be provided with pedal 3, so for example climbing up a ladder, when just climbing up ladder 2, two pin are stepped down on the pedal 3 at 2 o'clock, and can go to safely on the compartment etc. of truck, in addition,, also can get off safely by step down on the pedal 3 temporarily at the descending stair period of the day from 11 p.m. to 1 a.m.
According to technical scheme 2 of the present invention, because the bar 6 that protrudes above pedal 3 is being installed on the upper end of ladder 2, so, can further go on the compartment and from pedal 3 safely from pedal 3 by hand steered bar on pedal 3.
According to technical scheme 3 of the present invention, because latch for printed circuit 5 only forms L word shape with board 5b by upper plate portion 5a and card, latch for printed circuit 5 forwards protrudes in the mode parallel with pedal 3, card end with board 5b from then on the front end of upper plate portion 5a protrude downwards, so make its only blocked compartment board 12 grades at truck T by fastener on the time, between the compartment of latch for printed circuit 5 and truck T, produce the slit hardly, thereby do not worry hanging footwear etc. in use, and purpose of safety more on can realizing using.
According to technical scheme 4 of the present invention, because latch for printed circuit 5 is to end the parts that hook 15,15 constitutes by the pair of right and left card, card end hook 15 be the upper pole part 15a that forwards protrudes by leading section from pedal 3 and from then on the front end of the upper pole part 15a card that extends setting downwards be formed the parts of L word shape with the 15b of bar portion with onlying, make simply easy and can make advantage with low cost so have.
According to technical scheme 5 of the present invention, because ending hook 15, each card is installed on the pedal 3, make it can adjust the length of protruding out from the leading section of pedal 3, so can suitably adjust being ended situation by the card of fastener, and also can under the situation thicker by the thickness of fastener positively card end on by fastener.
According to technical scheme 6 of the present invention, because constituting, ladder 2 comprises ladder main body 2a, Retractive leg 9,9 and movable treadle parts 2b, ladder main body 2a is made of crossbearer treadle 8 on pair of right and left side frame 7,7; Retractive leg 9,9 is a pair of right and left, and can telescopically be installed on two side frames 7,7 of ladder main body 2a, by locking device L1 can be fixed on want on the telescopic location; Movable treadle parts 2b is one or more, and can be installed in slidably on two Retractive legs 9,9, by locking device L2 can be fixed on want on the sliding position, so, the upper end 12b card that makes compartment board 12 under the constant situation of the compartment board 12 that is for example founding truck T ends latch for printed circuit 5 and when using, even the height of 12 upper end is higher from ground F to compartment board, perhaps should height different because of the car type of truck, also can Retractive leg 9 elongations by making ladder 2 make ladder easily and this highly adapt.In addition and since can by make movable treadle parts 2b along Retractive leg 9,9 slide and with the set positions of treadle 14 in position arbitrarily, so also climb up ladder 2 easily even Retractive leg 9 is long, easy to use.
Description of drawings
(a) is the lateral view as the ladder device 1 of an embodiment of the invention among Fig. 1, (b) is the vertical view of this ladder device 1.
(a) is the front view of this ladder device 1 among Fig. 2, (b) is the lateral view of the state behind folding this ladder device 1.
(a) is as the lateral view of the ladder device 11 of another embodiment of the invention among Fig. 3, (b) is vertical view, (c) is front view.
Fig. 4 is the lateral view of the state behind folding this ladder device 11.
The lateral view that (a) is the Retractive leg that makes this ladder device 11 for minimum the time among Fig. 5 (b) is front view.
Among Fig. 6 (a) and (b) be the enlarged drawing of the part of being enclosed with arrow A indication of Fig. 3 (a), (c) be the B-B amplification view of (a).
(a) is the stereogram of the user mode of expression ladder device 1 among Fig. 7, (b) is the stereogram of the user mode of expression ladder device 11.
Fig. 8 is the stereogram of the user mode of expression ladder device 1.
Fig. 9 is that the vertical view that makes use-case of ladder device 1 is used in expression when operation post being expanded arrangement back formation operation post group forwards, backwards.
Figure 10 is that the card of installation ladder device 11 on the position of wanting that is illustrated in this operation post group ends the side sectional view of the installment state of hook.
Figure 11 is the stereogram that expression connects the structure of component.
Among Figure 12 (a) be bar extended configuration want portion's lateral view, (b) be bar folded state want portion's lateral view.
Figure 13 is the rotary installation component of bar and the exploded perspective view of rotational trajectory apparatus for correcting.
Figure 14 is the front view of another ladder device of the present invention.
Figure 15 is the enlarged drawing of the part of being enclosed with arrow C indication of Figure 14.
(a) is the enlarged drawing of the part of being enclosed with arrow D of Figure 14 among Figure 16, (b) is the lateral view of this part, (c) is the upward view of this part.
(a) is the enlarged front view of Retractive leg among Figure 17, (b) is lateral view, (c) is vertical view.
The specific embodiment
Below, in the reference accompanying drawing, embodiments of the present invention are described.At first, (a) is as the lateral view of the ladder device 1 of an embodiment of the invention among Fig. 1, (b) is vertical view.(a) is the front view of this ladder device 1 among Fig. 2, (b) is the lateral view of the state behind folding this ladder device 1.For this ladder device 1, one end that on the upper end of ladder 2, can connect pedal 3 foldedly by means of connection component 4, be provided with the latch for printed circuit 5 that is ended by card on the truck board of truck etc. on the leading section of this pedal 3, in the upper end of ladder 2 and on its both sides, by means of rotary installation component 10 bar 6,6 that protrudes to the top of pedal 3 is installed, these bar 6,6 rotatable being contained on the both sides of ladder 2 upper ends.
Structure to above-mentioned ladder device 1 further describes below.Shown in Fig. 2 (a), ladder 2 is by a pair of side frame 7,7 that is configured to roughly be Eight characters shape; And, be provided with its retractile Retractive leg 9 relatively in the bottom of each side frame 7, and this Retractive leg 9 can be fixed on the position that will stretch by well-known locking device by many treadles 8 formations of crossbearer between two side frames 7,7.
Latch for printed circuit 5 for example is installed on the leading section of pedal 3 integratedly by welding, and by upper plate portion 5a and the card only form L word shape with board 5b, wherein, the width of upper plate portion 5a and pedal 3 is identical and protrude to the place ahead of pedal 3, card end with board 5b from then on the front end of upper plate portion 5a protrude also downwards and meet at right angles with it, shown in the double dot dash line of Fig. 1 (a), latch for printed circuit 5 quilt cards end on the upper end of the boxboard 12 of truck.
Below by Figure 11 the structure that can foldedly pedal 3 be connected the connection component 4 on the ladder 2 is described.In addition, Figure 11 and Fig. 2 (b) similarly represent and ladder 2 state behind the Foldable pedal 3 face to face.Fixation side junction plate 31 is fixed on pedal 3 sides, a part that is fixed on the movable side connecting plate 32 on ladder 2 examples is coincided with under the state in the outside of fixation side junction plate 31, can connect these fixation side junction plates 31 and movable side connecting plate 32 rotationally by pivot 30.Fixation side junction plate 31 by screw a and rivet b be installed in pedal 3 about on each end, it is made of installation portion 31a and installation portion 31b, and when the following ora terminalis of installation portion 31a forms contact surface 34, on the part that the following ora terminalis of the following ora terminalis of this installation portion 31a and installation portion 31b is joined, formed the pivot suspension protuberance 31c that roughly is V word shape that pivot 30 is run through.Movable side connecting plate 32 is to be installed on the upper end lateral surface of the side frame 7 that forms ladder 2 by rivet b, and by installation portion 32a with roughly be fan-shaped connecting portion 32b and constitute, on installation portion 32a, be provided with contact surface 35, under the state that uses pedal 3, this contact surface 35 is used for, contact with it by the contact surface 34 of fixation side junction plate 31 and stop its further rotation, running through pivot 30 at the central part of fan type connecting portion 32b.
Bottom at the installation portion 31a of fixation side junction plate 31, be formed with pin-and-hole 36 in the position that has separated suitable distance from pivot 30 obliquely upward, and be equipped with the lock pin 33 that has been loaded on distolateral at one of pedal 3, make its from then on pin-and-hole 36 protrude to movable side connecting plate 32, on the connecting portion 32b of movable side connecting plate 32, be formed with connecting hole 37,38, this connecting hole 37,38 aligns with the pin-and-hole 36 of fixation side junction plate 31 sides respectively in the use location of pedal 3 and folding position, and lock pin 33 inserts and engages.Lock pin 33 roughly forms L word shape by pin main body 33a and handle part 33b, be a pair of locational parts of bilateral symmetry that are provided in an end soffit of pedal 3, and to dispose the pin main body 33a of each lock pin 33 along recessed portion 39 of an end soffit of pedal 3, by the key seat of installing with blind rivet b 40 it is rotated freely then, and move supporting freely vertically, and, its leading section 33o by the collapse coil spring 41 that is folded between pin main body 33a and the key seat 40 pin main body 33a loaded, so that can protrude laterally from the pin-and-hole 36 of fixation side junction plate 31.
As shown in figure 11, under the state after pedal 3 folds, the lock pin 33 that has run through the pin-and-hole 36 of fixation side junction plate 31 is loaded by collapse coil spring 41 and inserts in the connecting hole 38 that is fastened on movable side connecting plate 32, and thus, pedal 3 is locked on the folding position.Like this, draw to the direction relative after grasping handle part 33b, the 33b of lock pin 33,33 of both sides in use with it, each lock pin 33 will break away from the connecting hole 38 of movable side connecting plate 32 and unlock, and pedal 3 is opened into the use location shown in Fig. 1 (a).When becoming such user mode, contact surface 34,35 between fixation side junction plate 31 and the movable side connecting plate 32 will be in contact with one another, and, after the leading section 33o of the lock pin 33 that protrudes and be loaded inserts in the connecting hole 37 that is fastened on movable side connecting plate 32, will be locked on this use location.In addition, on the use location of ladder device 1, shown in Fig. 1 (a), this connects component 4 and is set to, between ground plane F and the ladder 2 to being for example 75 ° by the oblique tiltangle of fastener inclination.
In the upper end of ladder 2, be provided with rotary installation component 10 that bar 6 is installed and the rotational trajectory apparatus for correcting 47 of correcting the rotational trajectory of bar 6.Below with reference to Figure 12 and Figure 13 the formation of these rotary installation component 10 and rotational trajectory apparatus for correcting 47 is described.As shown in figure 12, on the side frame 7 of ladder 2, the fixing clamp 10a of shelly is installed, in addition, shown in Figure 13 (b), the rotation brackets 10b of identical shelly relatively is installed with screw 52 with fixing clamp 10a face and face with screw 52.Shown in Figure 13 (a), the in opposite directions wall 54 relative with rotation brackets 10b of fixing clamp 10a is formed down narrow shape, promptly, upper wall is 55 wide, lower wall 56 is narrow, the wall in opposite directions that this wide upper wall 55 is connected with narrow lower wall 56 is formed the following narrow inclined wall 54 that has 2.5 ° of inclined angle alpha B with respect to the inclined plane of side frame 7, is provided with rotation pivot 57 projectedly at the central portion that descends narrow inclined wall 54.On rotating, be provided with anticreep flange 58 with pivot 57.
Therefore, rotate the inclined plane of also being arranged to projectedly with respect to side frame 7 with pivot 57 and have 2.5 ° of inclined angle alpha B.And, shown in Figure 13 (a), 54 offer the top lockhole 59 that upwards is U word shape in the upper side of fixing clamp 10a from upper wall 55 to inclined wall, 54 similarly offer the bottom lockhole 60 that is U word shape downwards from lower wall 56 to inclined wall in the lower side of fixing clamp 10a.In addition, inside at fixing clamp 10a, with the rotation axle identical with pivot 57 on be equipped with the form of pivot and rotate jam plate 61, and top and the bottom at jam plate 61, be formed with the lock pawl 62 of upper and lower respectively, 63, side at jam plate 61, be provided with relieving rod 64 projectedly from the slotted hole 66 of the sidewall 65 of fixing clamp 10a, the top and the bottom two lock pawls 62 of this rotation jam plate 61,63 common loadings because of spiral helicine snap 67 are inserted in respectively in top lockhole 59 and the bottom lockhole 60 is stopping up two lockholes 59,60 inlet, and relieving rod 64 is moved upward along slotted hole 66 by the loading that overcomes snap 67, shown in the chain-dotted line of Figure 13 (c), two top and the bottom lock pawl 62,63 from two top and the bottom lockholes 59,60 retreat, and unlimited lockhole 59,60 inlet.
In addition, shown in Figure 13 (b), the in opposite directions wall 68 relative with fixing clamp 10a of rotation brackets 10b is formed narrow shape, promptly, it is narrow that last narrow inclined wall 68 is formed upper wall 69, lower wall 70 is wide, the wall in opposite directions 68 that narrow upper wall 69 is connected with wide lower wall 70 has 2.5 ° of inclined angle alpha b with respect to the inclined plane of side frame 7, on this, be provided with to break-through vertical slot hole 71 on the central portion of narrow inclined wall 68, the rotation that protrusion is arranged on the fixing clamp 10a is propped up in this vertical slot hole 71 with pivot 57 chimeric pivots, be positioned on same the above-below direction straight line at vertical slot hole 71 therewith and be provided with lock pin 72 projectedly, this lock pin 72 is chimeric and be locked in top and the bottom lockhole 59, in 60, this top and the bottom lockhole 59, be arranged on the fixing clamp 10a to 60 break-through.On this lock pin 72, be provided with anticreep flange 73.
Therefore, shown in Fig. 2 (a), make pair of armrests bar 6,6 for from extended configuration that pedal 3 has protruded upward the time, as Figure 12 (a) represents in detail, the following narrow inclined wall 54 of the fixing clamp 10a of side frame 7 sides and in the narrow inclined wall 68, because the following narrow inclined angle alpha B of following narrow inclined wall 54 is 2.5 °, and the last narrow inclined angle alpha b that goes up narrow inclined wall 68 is 2.5 °, rotation is arranged on this inclined wall 54 projectedly with pivot 57, and be bearing on the vertical slot hole 71 by chimeric, the last narrow inclined wall 68 of bar 6 sides is contacted with following narrow inclined wall 54, so, as Figure 12 (a) clear and definite, inclined angle alpha B, α b cancels out each other, and the cardinal extremity part 6a result of side frame 7 and bar 6 becomes in parallel to each other with pivotally connected state, Just because of this, cardinal extremity part 6a is with respect to vertical S and side frame 7 identical inclined angle alpha a with 5 °, and relative therewith, because bend angles alpha a is 5 °, so upper section 6b becomes vertical the state on the S that stand upright on.Therefore, the operator can be on pedal 3 usefulness hand steered on bar 6 time, can hold up thereon very restfully, and can carry out operation safely.
To this, shown in Fig. 2 (b), be in along under the folded state of side frame 7 at bar 6, as Figure 12 (b) represents in detail, following narrow inclined wall 54 for the fixing clamp 10a of side frame 7 sides, by being that fulcrum makes rotation brackets 10b along with bar 6 rotates 180 ° with pivot 57 by the chimeric rotation that is bearing on the vertical slot hole 71, the inclined wall 68 of rotation brackets 10b just descends narrow inclined walls with following narrow inclined wall 54 identical the becoming of fixing clamp 10a, and both inclined angle alpha B, α b adds that yes together 5 °, make that the rotational trajectory of bar 6 is corrected, side frame 7 becomes the pivotally connected state with 5 ° inclined angle alpha a with the cardinal extremity part 6a of bar 6, relative therewith, the bent angle alpha a of upper section 6b is 5 °, so folded along side frame 7.Therefore, bar 6 volumes can be not huge when folding, and bar 6 rotations are got final product, and do not need it is unloaded down from side frame 7, so be easy to operation.In addition, among Figure 12,6c is illustrated in the bend of the base end part side of bar 6.
(a) expression bar 6 of Fig. 1 is in the state of the use location of protruding to the top of pedal 3, make bar 6 to the rotation of the arrow directions X shown in Fig. 1 (a) with figure (b) expression by use location from then on, bar 6 is in the state of the reception position that the lateral surface with side frame 7 overlaps.In addition, bar 6 also can only be installed on the one-sided side frame 7.
(a) of Fig. 3 is the lateral view as the ladder device 11 of another embodiment of the invention, (b) be vertical view, (c) be front view, Fig. 4 is the lateral view of state that this ladder 11 has been folded, (a) of Fig. 5 is the Retractive leg lateral view hour that makes this ladder device 11, (b) be its front view, (a) of Fig. 6 and (b) be the enlarged drawing of the part of being enclosed with arrow A indication of Fig. 3 (a) (c) is the B-B amplification view of (a).This ladder device 11 is identical substantially with ladder device 1, but the shape of the structure of latch for printed circuit 5 and ladder 2 is different with ladder 1 respectively, therefore, below different parts is described.
Promptly, the latch for printed circuit 5 of this ladder device 11 is to end the parts that hook 15,15 constitutes by set pair of right and left card on the left and right sides of the leading section of pedal 3, each card ends hook 15 and only forms L word shape with the 15b of bar portion by upper pole part 15a and card, wherein, upper pole part 15a forwards protrudes in the mode parallel with pedal 3 from the leading section of pedal 3, card ends with the 15b of the bar portion front end extension downwards of upper pole part 15a from then on is arranged to the right angle, each card ends hook 15 and is installed on the lateral surface of pedal 3, makes it can adjust the length of protruding out from the leading section of pedal 3.
According to Fig. 6 (a)～(c) installation constitution that each card ends hook 15 is described below, promptly, on the leading section of each side plate 3a about pedal 3, along fore-and-aft direction slide brackets 16 can be installed slidably, fixing card ends the upper pole part 15a of hook 15 on this slide brackets 16, on 2 positions, front and back, wearing bolt inserting hole 17 on each side plate 3a, be formed with slotted hole 18 on the slide brackets 16 and in its rear and front end portion, like this, just bolt 19 can be punctured into from the slotted hole 18 of slide brackets 16 on each bolt inserting hole 17 of side plate 3a of pedal 3, and nut 20 is screwed on the end of this bolt, therefore, if unclamp nut 20 slide brackets 16 is rearward slided, so, shown in Fig. 6 (a), the protrusion length that the card that protrudes from the leading section of pedal 3 ends hook 15 becomes the shortest, in addition, if making slide brackets 16 forwards slides, so, shown in Fig. 6 (b), the protrusion length that card ends hook 15 becomes the longest, like this, by clamp nut 20, just can be respectively card be ended hook 15 and be fixed on short status and long status.
In addition, slide brackets 16 has guide piece 16o, the 16o that protrudes from the inward at both ends up and down of its leading section, and shown in Fig. 6 (c), the upper and lower surface portion of two slide 16o, 16o supporting pedal 3 also leads to it.
In addition, by Fig. 5 (b) as can be known, ladder 2 formations of ladder device 11 comprise ladder main body 2a, Retractive leg 9,9 and movable treadle parts 2b, and ladder main body 2a is made of the many treadles 8 of crossbearer on the pair of right and left side frame 7,7 of configuration that is parallel to each other; Retractive leg 9,9 is a pair of right and left, and can telescopically be installed on two side frames 7,7 of this ladder main body 2a, can be fixed on the required position by not shown locking device; Movable treadle parts 2b can be installed on two Retractive legs 9,9 slidably, and can be fixed on the required sliding position by not shown locking device, movable treadle parts 2b constitutes and comprises: be enclosed within the pair of right and left slider bar 13,13 on two Retractive legs 9,9 from the outside and be connected the treadle 14 of 13,13 of two slider bar integratedly.
Fig. 7 (a) is the stereogram of the user mode of expression ladder device 1, (b) is the stereogram of the user mode of expression ladder device 11; In addition, Fig. 8 is the stereogram of the user mode of expression ladder device 1.The situation of Fig. 7 (a) is that the chimeric and card of the latch for printed circuit 5 of ladder device 1 is ended on its base end part 12a.At this moment, aptly the Retractive leg 9,9 of kiss the earth F is stretched adjust after, shown in Fig. 1 (a), be under the horizontal state at pedal 3, by latch for printed circuit 5 is chimeric and be stuck on the base end part 12a of the compartment board 12 that puts down, the ladder 2 that favours truck T side remains on stable status, and therefore, can not choose the stable state that keeps ladder can be about on the ladder 2.
In addition, in this ladder device 1, owing to have pedal 3 in the upper end of ladder 2, so, for example when last ladder 2, after having climbed up ladder 2, can make two pin step down in pedal 3 above, and can go to safely on the compartment of truck T, in addition, also can be when playing ladder 2 by step on pedal 3 and safely temporarily.And, because the bar 6 that protrudes is being installed on the upper end of ladder 2 above pedal 3, thus by on pedal 3 with hand steered on bar 6, can further go on the compartment and from pedal 3 safely from pedal 3.
In addition, because the latch for printed circuit 5 of ladder device 1 is to end the parts that form L word shape with board 5b by upper plate portion 5a and card, upper plate portion 5a protrudes to the place ahead of pedal 3 with the width identical with pedal 3, card only protrudes downwards from the front end of upper plate portion 5a with board 5b, when making latch for printed circuit 5 block on the base end part 12a that ends at truck board 12, between the compartment of latch for printed circuit 5 and truck T, produce the slit hardly, so do not worry the situation that quilts such as footwear tangle in use, thereby can further realize the purpose used safely.
The situation of Fig. 7 (b) of the user mode of expression ladder device 11, certainly also be that latch for printed circuit 5 cards are ended on the base end part 12a of the compartment board 12 that puts down, the situation of this ladder device 11, latch for printed circuit 5 ends hook 15,15 by a pair of card that is provided with and constitutes on the left and right sides of pedal 3 leading sections, so end on the base end part 12a of compartment board 12 as long as make two cards end hook 15,15 cards.The using method of this ladder device 11 and ladder device 1 are just the same.
In addition, in this ladder device 11, each card ends hook 15 and is installed on the pedal 3, it can adjust the protrusion length of protruding out from the leading section of pedal 3, so, can suitably adjust the card situation of ending that card ends on compartment board 12, and its card is ended on the compartment board 12, in addition, except being suitable for making its card to end the situation on the compartment board 12 of truck T, also be suitable for making its card to end on wall for example and the top of fence etc. on situation.In addition, end hook 15,15 by a pair of card and constitute because card ends hook 15, so have advantage easy to manufacture and can be with low cost.
The compartment board 12 that Fig. 8 represents to stand truck T does not put down and makes the upper end 12b card of this compartment board 12 end the state of the latch for printed circuit 5 of ladder device 1.At this moment, the height of 12 upper end is higher from ground F to compartment board, but the mode that can extend by the Retractive leg 9 that makes ladder 2 makes it to be easy to corresponding with it.In addition, though Fig. 8 represents the user mode of ladder device 1, but it is so shown in Figure 8, when using ladder device 11 to make the upper end 12b card of compartment board 12 end the latch for printed circuit 5 of ladder device 11, even the height of 12 upper end 12b is higher from ground F to compartment board, also can be easy to come corresponding with it by the mode that the Retractive leg 9 that makes ladder 2 extends, and, by movable treadle device 2b is slided along Retractive leg 9,9, the position of treadle 14 can be located at position arbitrarily, so even Retractive leg 9 is longer, also climb up ladder 2 easily, easy to use.
Fig. 9 has been an illustration with a plurality of operation posts 21 forwards, backwards about expansion arrange and when forming the operation post group, on desired operation post 21, use the use-case that makes of ladder device 1.
Promptly, each operation post 21 is to be made of operation post 22 and the supporting leg 23,23 that is installed in its two ends, left and right sides, operation post 21 front and back and about be arranged with to devices spaced apart for example 4 respectively, and between the operation platen 22,22 of the operation post 21,21 of front and back, accompany less important work platen 24, about the operation platen 22,22 of operation post 21,21 between and about less important work platen 24,24 between accompany less important work platen 25, thus, formed and illustrated such operation post group.
Like this, as shown in the figure, the operation post group that is made of these operation posts 21 is owing to have supporting leg 23 in left and right sides both end sides, but in the rear and front end side, be that the long side direction both end sides does not have supporting leg 23, so long side direction two ends ladder up and down from then on.Therefore, as shown in the figure, on the auxiliary worker of the long side direction one distolateral central portion that is positioned at the operation post group organizes a performance plate 25 ladder device 11 of the present invention has been installed, its installment state as shown in figure 10.
As shown in figure 10, the ladder of ladder device 11 is landed, and a pair of card in both sides that will constitute the latch for printed circuit 5 of pedal 3 leading sections end hook 15,15 and snaps in and be installed in the hole 26 on the less important work platen 25 at the sidepiece of this less important work platen 25.At this moment, though the card that makes card end hook 15 only snaps in the hole 26 of less important work platen 25 with the 15b of bar portion, but, also can not wear this hole 26 especially, as long as less important work platen 25 is made of the aluminum extrudate, so owing on the whole zone of operation platen 25, all be provided with the hole 26 of anti-skidding usefulness, so, this these anti-slide opening just can be utilized.
Figure 14～Figure 17 is expression and the figure of the ladder device 51 of the embodiment same-type of Fig. 3～shown in Figure 5, Figure 14 is the front view of ladder device 51, Figure 15 is the enlarged drawing of the part of being enclosed with arrow C indication of Figure 14, Figure 16 (a) is the enlarged drawing of the part of being enclosed with arrow D indication of Figure 14, Figure 16 (b) is the lateral view of this part, and Figure 16 (c) is the upward view of this part, and Figure 17 (a) is the enlarged front view of Retractive leg 9, Figure 17 (b) is a lateral view, and Figure 17 (c) is a vertical view.
The ladder device 11 of this ladder device 51 and Fig. 3～shown in Figure 5 is basic identical, but, particularly locking device L1 and locking device L2 are represented that at this pair of right and left Retractive leg 9,9 that locking device L1 is used for telescopically being installed on two side frames 7,7 of ladder main body 2a is fixed on the telescopic location of wanting; The movable treadle parts 2b that locking device L2 is used for being installed in slidably on two Retractive legs 9,9 is fixed on the sliding position of wanting.
At first, the ladder 2 of this ladder device 51 comprises ladder main body 2a, Retractive leg 9,9 and movable treadle parts 2b, ladder main body 2a by many treadles 8 crossbearers on pair of right and left side frame 7,7 and constitute; Retractive leg 9,9 is a pair of right and left, and can telescopically be installed on two side frames 7,7 of this ladder main body 2a, by locking device L1 can be fixed on want on the telescopic location; Movable treadle parts 2b can be installed on two Retractive legs 9,9 slidably, and can be fixed on institute by locking device L2 and want on the sliding position, and movably treadle parts 2b comprises: be enclosed within the pair of right and left slider bar 13,13 on two Retractive legs 9,9 from the outside; Be connected the treadle 14 between two slider bar 13,13 integratedly.In addition, in this embodiment,, also can be provided with a plurality of though movable treadle parts 2b only is provided with one.
Two side frames 7,7 of ladder main body 2a are formed the square tube shape respectively, in each side's tubular side frame 7, can overlap slidably and be inserted with the Retractive leg 9 that is formed the diameter square tube shape littler than side frame 7, and on each Retractive leg 9, as shown in figure 17, be provided with the pin-and-hole 9a that runs through along diametric(al) with the determining deviation on the length direction.In addition, the slider bar 13 of movable treadle parts 2b is formed the square tube shape that can be slidably be enclosed within from the outside on the Retractive leg 9 of square tube shape.
Locking device L1 makes two Retractive legs 9,9 are able to stationary device, as shown in figure 15, on both ends, the left and right sides side below orlop side treadle 8 bracket 74 is installed, 74, at two brackets 74, on 74, can be respectively to the left and right direction support the lock pin 50 that pair of right and left laterally is L word shape movably, 50 pin main part 48,48, pin main part 48,48 vertically are provided with handle part 49 respectively projectedly on an end separately, and, can make two pin main parts 48,48 the 48a of leading section separately, 48a inserts two side frames 7 of ladder main body 2a, in 7, between each lock pin 50 and bracket 74, be folded with the coil spring W of loading, so that the leading section 48a of pin main part 48 can insert in the side frame 7 of ladder main body 2a, like this, by gripping two lock pins 50,50 two handle parts 49,49 and with its central portion layback to orlop side treadle 8, will make two pin main parts 48,48 leading section 48a, 48a becomes from the side frame 7 of ladder main body 2a separately, 7 states of pulling out, in addition, by discharging two handle parts 49,49 gripping, will be respectively make two pin main parts 48 because of the loading force of spring W, 48 leading section 48a, 48a is inserted into the side frame 7 of ladder main body 2a, in 7, and, quilt cover is inserted in two side frames 7 to make it be punctured into, Retractive leg 9 in 7,9 needed separately pin-and-hole 9a, in the 9a, thereby make two Retractive legs 9,9 are fixed.
Movable treadle parts 2b is fixed on Retractive leg 9, the locking device L2 of the sliding position of wanting on 9, be by the device that constitutes with the same structure of above-mentioned locking device L1, as shown in Figure 16, bracket 74 is installed on both ends, the left and right sides side below the treadle 14 of movable treadle parts 2b, 74, at two brackets 74, on 74, can be respectively to the left and right direction support the lock pin 50 that pair of right and left laterally is L word shape movably, 50 pin main part 48,48, pin main part 48,48 vertically are provided with handle part 49 respectively projectedly on an end separately, and, at two brackets 74, on 74, can make two pin main parts 48,48 the 48a of leading section separately, 48a is inserted into two side frames 7 of ladder main body 2a, in 7, and between each lock pin 50 and bracket 74, be folded with the coil spring W of loading, so that the leading section 48a of pin main part 48 can be inserted in the slider bar 13 of movable treadle parts 2b, like this, by gripping two lock pins 50,50 two handle parts 49,49 and with its central portion layback to treadle 14, just make two pin main parts 48,48 leading section 48a, 48a is respectively from the slider bar 13 of movable treadle parts 2b, 13 become the state of pulling out, in addition, by discharging two handle parts 49,49 gripping, loading force because of coil spring W makes two pin main parts 48 respectively, 48 leading section 48a, 48a is inserted into the slider bar 13 of movable treadle parts 2b, in 13, and, quilt cover is inserted in two slider bar 13 to make it be punctured into, Retractive leg 9 in 13,9 needed separately pin-and-hole 9a, in the 9a, thereby movable treadle parts 2b is fixed on Retractive leg 9, on 9 want on the sliding position.
Use ladder device as shown in figure 14, as shown in Figure 8, when the upper end 12b of the compartment board 12 that makes truck t is only blocked by latch for printed circuit 5, even the height of 12 upper end is higher from ground F to compartment board, in addition, even should be highly different because of car type, also can come corresponding by Retractive leg 9 elongations that make ladder 2 at an easy rate with it, and, by making movable treadle parts 2b along Retractive leg 9,9 slide, can be on position arbitrarily with the set positions of treadle 14, promptly, because can be at two side frames 7 from ladder main body 2a, the Retractive leg 9 that has extended 7 lower ends, 9 length direction pars intermedia is treadle 14 fixedly, so climb up ladder easily, and use Retractive leg 9 effectively, 9.In addition, in this case, if many movable treadle parts 2b can be installed on Retractive leg 9,9, even so when the length of Retractive leg 9,9 is very long, because many treadles 14 are installed, so can use Retractive leg 9,9 more effective and safely.
In addition, by locking device L1 as described above, can be simply easily with about two Retractive legs 9,9 be fixed on the position that the left and right sides frame 7,7 with respect to ladder main body 2a will stretch, in addition by locking device L2, can simply easily movable treadle parts 2b be fixed on respect to about on the position that will slide of two Retractive legs 9,9.
Claims (6)
1. ladder device, it is characterized in that, connect an end of pedal by means of connecting component in the mode that can fold in the upper end of ladder, and on the leading section of this pedal, be provided with latch for printed circuit, this latch for printed circuit only blocked the compartment board of truck etc. by fastener on.
2. ladder device as claimed in claim 1 is characterized in that, in the upper end of ladder and on its one or both sides, the bar that protrudes to the top of pedal is installed.
3. ladder device as claimed in claim 1 or 2, it is characterized in that, latch for printed circuit constitutes the parts that ended the L word shape that forms with board by upper plate portion and card, described upper plate portion is arranged on the leading section of pedal integratedly, and forwards protrude in the mode parallel with pedal, described card only protrudes downwards with the front end of board from this upper plate portion.
4. ladder device as claimed in claim 1 or 2, it is characterized in that, latch for printed circuit ends hook by set pair of right and left card on the left and right sides of the leading section of pedal and constitutes, each card ends hook and only forms L word shape with bar portion by upper pole part and card, described upper pole part forwards protrudes from the leading section of pedal, described card end with bar portion from then on the front end of upper pole part extend setting downwards.
5. ladder device as claimed in claim 4 is characterized in that, above-mentioned each card ends hook and is installed on the pedal, can adjust the length of protruding from the leading section of pedal.
6. as each described ladder device in the claim 1～5, it is characterized in that, ladder is made of ladder main body, Retractive leg and movable treadle parts, described ladder main body is made of the many treadles of crossbearer on the pair of right and left side frame, described Retractive leg is a pair of right and left, can telescopically be installed on two side frames of ladder main body, and by locking device can be fixed on want on the telescopic location, described movable treadle parts are one or more, by locking device can be fixed on want on the sliding position.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2005071043A JP2006249871A (en) | 2005-03-14 | 2005-03-14 | Ladder device |
| JP071043/2005 | 2005-03-14 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1834400A true CN1834400A (en) | 2006-09-20 |
Family
ID=37002287
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200510080288 Pending CN1834400A (en) | 2005-03-14 | 2005-06-28 | Ladder |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP2006249871A (en) |
| CN (1) | CN1834400A (en) |
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| CN103016050A (en) * | 2012-12-12 | 2013-04-03 | 南京大学 | Foldable-type liftable protection device used for geological prediction in tunnels |
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| CN105735882A (en) * | 2016-05-13 | 2016-07-06 | 苏州飞华铝制工业有限公司 | Retractable folding hanging ladder |
| CN105781403A (en) * | 2016-05-13 | 2016-07-20 | 苏州飞华铝制工业有限公司 | Hanging ladder with foldable pedal |
| CN105822218A (en) * | 2016-05-13 | 2016-08-03 | 苏州飞华铝制工业有限公司 | Hanging ladder with foldable handrails |
| IT201700083822A1 (en) * | 2017-07-24 | 2019-01-24 | Antonio Molon | EQUIPMENT FOR NAPKINS |
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| IT202000011077A1 (en) * | 2020-05-14 | 2021-11-14 | Stp S R L | SAFETY STEP FOR STAIRS |
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- 2005-06-28 CN CN 200510080288 patent/CN1834400A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103016050A (en) * | 2012-12-12 | 2013-04-03 | 南京大学 | Foldable-type liftable protection device used for geological prediction in tunnels |
| CN103016050B (en) * | 2012-12-12 | 2014-10-29 | 南京大学 | Foldable-type liftable protection device used for geological prediction in tunnels |
| CN104389506A (en) * | 2014-11-14 | 2015-03-04 | 施昌邑 | Anti-knocking down device of A-shaped aluminum ladder |
| CN105735882A (en) * | 2016-05-13 | 2016-07-06 | 苏州飞华铝制工业有限公司 | Retractable folding hanging ladder |
| CN105781403A (en) * | 2016-05-13 | 2016-07-20 | 苏州飞华铝制工业有限公司 | Hanging ladder with foldable pedal |
| CN105822218A (en) * | 2016-05-13 | 2016-08-03 | 苏州飞华铝制工业有限公司 | Hanging ladder with foldable handrails |
| IT201700083822A1 (en) * | 2017-07-24 | 2019-01-24 | Antonio Molon | EQUIPMENT FOR NAPKINS |
| WO2019020552A1 (en) * | 2017-07-24 | 2019-01-31 | Molon Antonio | Painting equipment |
| CN111315954A (en) * | 2017-11-10 | 2020-06-19 | 伟英企业有限公司 | Ladder walk-through and seating mechanism, ladder incorporating same, and related methods |
| CN111315954B (en) * | 2017-11-10 | 2023-05-12 | 小巨人梯具系统有限公司 | Travel and support mechanism for a ladder, ladder incorporating such a mechanism, and related methods |
Also Published As
| Publication number | Publication date |
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| JP2006249871A (en) | 2006-09-21 |
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