CN203474201U - Step of passenger conveyor - Google Patents

Abstract

A step (30) of an escalator (10) serving as a passenger conveyor is provided with a step framework (302), a tread (304), upper corner plates (306), upper supporting components (318) and a vertical plate (308), wherein the tread (304) is arranged on the upper surface of the step framework (302); the upper corner plates (306) are configured to be the same plane with a tread surface and arranged in the horizontal direction of the upper corner end parts; the upper supporting components (318) move freely up and down to support the upper corner plates so as to limit the upper corner plates (306) in positions only below the tread surface position; and the vertical plate (308) is arranged in the rear of the step framework (302), the upper part of the vertical plate if fixed to the upper corner plates (306), the lower part is fixed at the lower part of the step framework (302), and the vertical plate is made of an elastic material which changes into a specified buckling shape from an initial shape according to downward specified force and can be recovered to the initial shape from the buckling shape.

Description

The step of passenger conveyors

The application be take No. 2012-211006 (applying date: be on September 25th, 2012) basis, enjoy the preceence of this application of Japanese patent application.The application is with reference to this application, the content that comprises all this application.

Technical field

Embodiment of the present utility model relates to a kind of step of passenger conveyors.

Background technology

In the past, the step as a kind of escalator of passenger conveyors, was practical end, the angle resinification of step.In addition, thus even if also proposed a kind of by the boarding face of step being made to the soft resin people also hurtless technology of staggering along.These conventional arts, by soft resin is made in the end, vulnerable angle that holds most of step, increase safety.

But once the end, angle of step is soft, passenger steps on described position and just easily falls, in addition, the shoes heel that the heel of easily nipping is sharp-pointed or umbrella top etc., safety is also sometimes impaired.

Although the step tread of initial escalator is the wooden of softness, by metal or hard resin, formed now, from this technological change, also can know this contradictory phenomena.

Therefore, even if set foot on step for passenger's brute force in the past, do not make it be damaged yet, a kind of like this technology has been proposed: the end, angle of step retains high-intensity broach, while there is end, angle when step is come rake on the other hand, give prominence to from the end, angle of step at the soft circular position that has, and improves safety.

Yet, if above-mentioned conventional art must pack special mechanism on all steps, therefore there is easy generation fault, damage the possibility of reliability high and also there is the high problem of price.

Utility model content

Therefore, the object of embodiment of the present utility model is, provides in view of the above problems that a kind of power more than certain numerical value is soft and for the power that is less than this numerical value, be the step of solid passenger conveyors for certain.

The utility model of technical scheme 1 is a kind of step of passenger conveyors, and they are a plurality of connects into ring-type and carries out loopy moving, and the step of this passenger conveyors has: step framework; Being located at described step frame upper surface is the pedal that comprises broach on tread; Upper gusset, (1) on this gusset to be configured to described tread be same plane, (2) along the left and right directions configuration of the end, upper angle of described step, and (3) comprise the broach continuous with the described broach of described pedal; Upper support parts, these upper support parts are located at described step framework, so that described upper gusset only moves up and down freely gusset on this is supported below the position of described tread; And riser, (1) this riser is located on described step framework, (2) described upper gusset or described upper support parts are fixed in the top of this riser, (3) bottom of this riser is fixed on the bottom of described step framework, (4) and this riser from the specified force by downwards and form from the elastomeric material of buckling shape and can reset into described original shape from the described shape of buckling that original shape becomes regulation, (5) this riser comprises the broach continuous with the described broach of described upper gusset.

The utility model of technical scheme 2 is on the step basis of the passenger conveyors described in technical scheme 1, for make described riser from described original shape become regulation described in the shape of buckling, in the scope of buckling of the described shape of buckling, have: the part of (1) wall thickness; (2) the thick part of wall thickness; (3) notch part forming by incision; Or rib (4).

The utility model of technical scheme 3 is on the step basis of the passenger conveyors described in technical scheme 2, and the shape of buckling described in described riser is the shape that described riser bloats laterally.

The utility model of technical scheme 4 is on the step basis of the passenger conveyors described in technical scheme 2, and the shape of buckling described in described riser is described riser recessed shape to the inside.

The utility model of technical scheme 5 is on the step basis of the passenger conveyors described in technical scheme 2, and the shape of buckling described in described riser is the shape that bloats laterally of described riser and the described riser corrugated shape that recessed shape alternately forms to the inside.

The utility model of technical scheme 6 is on the step basis of the passenger conveyors described in technical scheme 3, at described step framework or described riser, is provided with support, to make described step framework and described riser butt mutually support in the described scope of buckling.

The utility model of technical scheme 7 is on the step basis of the passenger conveyors described in technical scheme 4, and described notch part is located at respectively on the back side of the described riser corresponding with the upper and lower of the described scope of buckling.

The utility model of technical scheme 8 is on the step basis of the passenger conveyors described in technical scheme 4, on the described broach of the described riser of the scope of buckling described in described notch part is located at.

The utility model of technical scheme 9 is on the step basis of the passenger conveyors described in technical scheme 4, and described rib is outstanding from the back side of the described riser of the described scope of buckling.

The utility model of technical scheme 10 is on the step basis of the passenger conveyors described in technical scheme 5, the back side at the described riser of the described scope of buckling arranges a plurality of described notch parts, described rib from the back side of the described riser of the described scope of buckling every predetermined distance give prominence to.

Adopt the utility model, when riser is original shape, because the shape former state of step maintains, therefore be safe.In addition, in the occasion that has acted on abnormal power, due to upper gusset and the riser generation local deformation of step, therefore can alleviate the injury of the passenger's that falls down injured and suitcase.

Accompanying drawing explanation

Fig. 1 is the instruction diagram of the escalator of embodiment 1.

Fig. 2 is the block diagram of the step of original shape.

Fig. 3 is the block diagram that bloats the step of rear state.

Fig. 4 is that the part of the riser of original shape cuts amplification stereogram.

Fig. 5 is that the part that bloats the riser of rear state cuts amplification stereogram.

Fig. 6 is the longitudinal section at the step rear portion of original shape.

Fig. 7 is the longitudinal section that bloats the step rear portion of rear state.

Fig. 8 is the longitudinal section of riser bottom.

Fig. 9 is the front view of riser.

Figure 10 is the block diagram of the step of state after being recessed into of embodiment 2.

Figure 11 is that the part of the riser of recessed rear state cuts amplification stereogram.

Figure 12 is the longitudinal section at the step rear portion of original shape.

Figure 13 is the longitudinal section at the step rear portion of recessed rear state.

Figure 14 is the block diagram of step of the wrinkle state of embodiment 3.

Figure 15 is that the part of the step of wrinkle state cuts enlarged drawing.

Figure 16 is the longitudinal section at the step rear portion of original shape.

Figure 17 is the longitudinal section at the step rear portion of wrinkle state.

Figure 18 is the block diagram of step of the original shape of embodiment 4.

Figure 19 is the block diagram of the step after riser buckling distortion.

Figure 20 is that the part of the riser bottom of initial condition cuts amplification stereogram.

Figure 21 is the longitudinal section of the riser bottom of initial condition.

Figure 22 is the longitudinal section of state after same distortion.

Figure 23 is the longitudinal section at step rear portion of the original shape of embodiment 5.

Figure 24 is the longitudinal section at the step rear portion of state after upper support part distortion.

The specific embodiment

Below, the escalator 10 of an embodiment is described with reference to accompanying drawing.

[embodiment 1]

The escalator 10 of embodiment 1 is described referring now to Fig. 1～Fig. 9.

(1) escalator 10

Structure for escalator 10, illustrates with reference to Fig. 1.Fig. 1 is the instruction diagram arriving from the side after escalator 10.

The truss 12 of escalator 10 is across the upper and lower of building 1 and be supported by supporting angle steel 2,3.14 inside, Machine Room of the upper layer side in truss 12 upper ends are provided with actuating device 18.On this actuating device 18, the chain drive-belt 22 that is connected with electrical motor 20 and utilizes this electrical motor 20 to move, drive sprocket 24 is driven by this chain drive-belt 22.On electrical motor 20, be provided with the overload protection device of thermal protector etc.In addition, in 14 inside, Machine Room of upper layer side, be provided with control setup 50.In the Machine Room 16 of the lower layer side in truss 12 bottoms, be provided with driven sprocket 26, between drive sprocket 24 and driven sprocket 26, hang step chain 28, on step chain 28, be connected with equally spaced a plurality of step 30.

The front and back of step 30 are provided with front-wheel 30a and trailing wheel 30b, these front-wheels 30a and trailing wheel 30b, by by by being located at the not shown outlet guide rail in truss 12, the rail guidance that return road guide rail and turning guide rail are formed, and being circulated, the mobile interlock of a plurality of steps 30 and step chain 28 advances.Step 30 is stair shape at rake.The top of the position that step 30 overturns is user's upper and lower opening, at upper and lower opening, is provided with the upper and lower plates 32 of upper layer side and the upper and lower plates 34 of lower layer side.

At the vertical pair of right and left railing 36,36 that is provided with in the left and right sides of truss 12.Handrail belt 38 moves on the top of this railing 36.Be provided with the front skirt panel 40 that the positive basifacial of railing 36 upper layer side is covered, be provided with the front skirt panel 42 of lower layer side at the positive basifacial of lower layer side, the gangway that is extruded with handrail belt 38 from the front of front skirt panel 40,42 enters portion.Bottom, side at railing 36 is provided with skirt panel 44.In addition, be provided with the operation board 52 of upper layer side on the front of upper layer side skirt panel 40, skirt panel 44 is in its vicinity provided with the loud speaker 54 of upper layer side.On the front skirt panel 42 of lower layer side, be also provided with the operation board 56 of lower layer side, skirt panel 44 is in its vicinity provided with the loud speaker 58 of lower layer side.

(2) step 30

Then, with reference to Fig. 2～Fig. 9, step 30 is described.

As shown in Figure 2, step 30 has step framework (being only called below " framework ") 302, pedal 304, upper gusset 306 and riser (toe riser) 308.In addition, in the following description, the state rising with step 30 describes.That is, framework 302 is provided with below riser 308.

The side of framework 302 is lower general triangular, and upper surface is formed with tread.In the front portion of framework 302, be provided with pair of right and left front-wheel 30a, in the rear lower of framework 302, be provided with pair of right and left trailing wheel 30b.

Pedal 304 is fixed on the upper surface (tread) of framework 302, at upper surface, along fore-and-aft direction, is provided with broach (being called comb, groove or clamping plate) 310.

(3) upper gusset 306

Then, gusset 306 is described.

As shown in Figure 2, upper gusset 306 is that aspect is rectangular tabular, by synthetic resin, is formed.Upper gusset 306 disposes polylith along left and right directions (the crest line direction at angle) on the end, upper angle of step 30, and pedal 304 is configured to same plane with upper gusset 306 at tread.On upper gusset 306, be provided with the broach 312 continuous with pedal 304.

As shown in Figure 6, on the top below of framework 302, as prescribed compartment of terrain is provided with the framework 316 extending longitudinally.On framework 316, be separately installed with above-below direction and move upper support portion 318 freely.

As shown in Figure 6, each upper support portion 318 that as prescribed interval sets has: the horizontal support portion 320 that along continuous straight runs extends; And the vertical support 322 that extends setting from horizontal support portion 320 leading sections downwards.

As shown in Figure 6, the upper surface in horizontal support portion 320 utilizes screw 324 to fix gusset 306.In addition, a plurality of upper gussets 306 become the state being connected in the position of the horizontal support portion 320 of a plurality of upper support parts 318.That is, as shown in Figure 9, the upper gusset 306 configuring along left and right directions arranges polylith, and the both ends of adjacent upper gusset 306 are by horizontal support portion 320 supportings of upper support parts 318.Thus, easily deflection downwards of upper gusset 306.

As shown in Figure 6, on vertical support 322, offer two slotted holes 326 to longitudinal extension, by these slotted holes 326, from the inner side hold-down bolt 328 of framework 316, the adapter plate 330 tabular with oblong screws togather.And by binding bolt 328, thereby upper support portion 318 is fixed on framework 316.But upper support portion 318 moves freely at above-below direction with the length range of slotted hole 326.

(4) riser 308

Then, riser 308 is described.

As shown in Figure 4, riser 308 is formed by rubber or synthetic resin, after framework 302, is arranged on the below of gusset 306.The surface of riser 308 is also provided with broach 314, with the broach 310 of pedal 304, the broach 312 of upper gusset 306 is mutually continuous.When surpassing predetermined reference force and be applied on upper gusset 306 downwards, riser 308 is just as Fig. 3, become the state bloating as shown in Figure 5.In addition, to be pre-processed into its surperficial friction coefficient low and level and smooth for the elastomeric material of riser 308.

As shown in Figure 4, the upper end of riser 308 is suspended in the rearward end of gusset 306.The fixing means of this suspention use as shown in Figure 6, is provided with the teat 332 of inclination in the inner side, upper end of riser 308, this teat 332 engages with the switch-in part 334 being located in upper gusset 306 rearward end.And when on each, gusset 306 utilizes respectively screw 324 and is fixed on upper support parts 318, upper gusset 306 just pushes the teat 332 of riser 308 and is fixed.In addition, as this fixing means, when utilizing lining cement to carry out when bonding fixing more completely.

As shown in Figure 8, the bottom of riser 308 engages with the lower support parts 336 that are arranged in framework 302 front lower ends.In detail, lower support parts 336 utilize bolt 338 and are fixed on the bottom of framework 302, are provided with the groove 340 extending along left and right directions on lower support parts 336.By the bottom of the riser bloating a little 308 being embedded in this groove 340, the bottom of riser 308 is just fixed on the rear surface, lower end of framework 302.By binding bolt 338, thereby the bottom of the riser 308 in embedded groove 340 is just urged and is completely fixed on the bottom of framework 302.

The rear portion of framework 302, except being provided with the position of framework 316, is roughly curve form as shown in Figure 6, and this curve form forms along the original shape of riser 308.In addition, " original shape " of so-called riser 308, refers to the shape that riser 308 is not as shown in Figure 6 buckled, and the power downwards that refers to is not applied on gusset 306 completely, or applies the state of the power below reference force downwards.

Riser 308 bloats laterally and carries out buckling distortion from original shape.This scope of buckling bloating is set in the top (with reference to Fig. 6 and Fig. 7) of riser 308.Corresponding with the scope of buckling of riser 308, at the back side of riser 308, be formed with the recess 342 that wall thickness forms thinly.In addition, at recess 342 middle body longitudinally, from recess 342, be extruded with to the inside support 344.In addition, on the broach 314 of the corresponding riser 308 in the upper and lower with the scope of buckling, be provided with notch part 346,348.Here, the notch part 346,348 that left and right directions arranges, its position becomes the fulcrum of buckling, and shortens the scope of buckling in the situation that the power of buckling, less than reference force, shortens the interval of this notch part 346,348.

(5) operating state

Then, illustrate that masterpiece is downwards used for the situation on step 30 upper corners.

First, presuppose reference force, as shown in Fig. 4 and Fig. 6, be configured to act on power on step 30 upper corners downwards and be reference force following in the situation that, riser 308 maintains original shape.Here, " reference force " refers to the pedal force of the common maximum that passenger is upper and lower that.

Because a plurality of upper gussets 306 are and the tread rectangular plate that is same plane, therefore, its rigidity is also high at fore-and-aft direction and left and right directions.In addition, in supporting, the upper support parts 318 of gusset 306 are only fixed to action downwards, and the upper gusset 306 that forms the upper corner of step 30 does not move to the direction of pedal 304.In addition, for above-below direction, riser 308 is stringer board structures, even elastomeric material also has enough thickness, therefore, for local load, can not deflect into the shape of buckling.

A plurality of upper gussets 306 become the state being connected in the position of the horizontal support portion 320 of a plurality of upper support parts 318.Therefore, the upper gusset 306 of the end, upper angle of step 30 can not be offset to the left and right, and be fixed on the point of load of the upside of the riser on gusset 306 308 on this can lateral excursion.In addition, due to the point of load of the upside of riser 308 lateral excursion not, therefore, the load of buckling is not changed to below reference force.For local load, if riser 308 is not buckled yet, the shape of the upper corner of step 30 is held.

Then, power (being only called below " abnormal power ") effect when in the situation that passenger falls or suitcase and other items falls more than such large impulsive force reference force, as shown in Fig. 3, Fig. 5 and Fig. 7, upper gusset 306 and riser 308 local deformations of step 30, the shape that riser 308 buckling distortions become to bloat laterally.

The reason of the shape that riser 308 buckling distortions become to bloat laterally is now described.

The 1st reason is, a plurality of upper gussets 306 in the same plane of tread on, therefore a little less than bending stiffness downwards.In addition, in supporting, 318 of the upper support parts of gusset 306 move downwards from tread, therefore the upper gusset 306 of the upper corner of step 30 can from tread, part be easily crooked downwards.

The 2nd reason is that on riser 308, forming the thinner part of wall thickness of buckling laterally with specified force for local load is recess 342, and is provided with notch part 346,348 on the broach 314 of riser 308.Therefore, the upper gusset 306 of the upper corner of step 30 can lateral excursion, and the point of load of the upside of riser 308 can lateral excursion, and when having acted on abnormal power, just riser 308 is buckled laterally.

The 3rd reason is that the upper and lower notch part 346,348 that is located at the broach 314 of riser 308 becomes the fulcrum of buckling, and forms the scope of buckling using this part as upper and lower bound, buckles laterally.The load of buckling is now managed according to the upper-lower position of this scope, height and thickness of slab etc.

The 4th reason is in the scope of buckling, to be located at support 344 supporting mutually with the rearward end butt of framework 302 on riser 308 back sides.Therefore, because 344 pairs of supports buckling to the inside retrains, therefore the deflection side of the shape of buckling of riser 308 is the outside of step 30.

In addition, when using soft rubber as the elastomeric material of riser 308, although friction coefficient is high, easily clamp foreign matter etc., if be processed into synthetic resin material or solid rubber that surface friction coefficient is low and level and smooth, may clamp thing hardly.

In addition, if abnormal power disappears, because riser 308 is formed by rubber or synthetic resin, therefore utilize its recuperability from the recovery of shape of buckling to original shape.

(6) effect

Adopt present embodiment, when riser 308 is original shape, the shape of step 30 still maintains former state, therefore be safe.In escalator 10, even for example for not walking of passenger is broadcasted, also have the passenger of walking.When the passenger of this walking steps on step 30 walking deeply, tiptoe will scrape step 30, therefore there is the tendency of carrying out walking on the upper corner 30 of step 30.If riser 308 is not buckled for the load downwards (power below reference force) of part, the shape due to the upper corner of step 30 is maintained, and can guarantee the basic security of step.

In addition, if the shape of the upper corner of step 30 is maintained, upper corner 306 not deflections, the rigidity of integrally formed broach 312 is just high, therefore the sole of umbrella handle and spike heel footwear can not nipped between broach 312.

In addition, in the occasion that has acted on abnormal power, upper gusset 306 and riser 308 generation local deformations due to step 30, therefore, can alleviate the injury of the passenger's that falls injured or suitcase.For upper gusset 306, if more than setting deflection 10mm for, can expect greatly to be alleviated for the impact of overturning the head that clashes into etc., for the people of overturning, be safe.

In addition, take and on escalator 10, carry out the passenger that walking is prerequisite, once stand in tread depths, while leaving so, tiptoe is just scraped step 30, therefore, often stand at the very start upper corner near, even the upper corner deflection that other passengers fall down, goods falls left and right one side that makes step 30, can not affect the passenger on the upper corner that stands in opposite side, therefore be safe yet.That is, two people side by side of left and right also come on the step 30 of escalator 10, even if a side passenger falls down, the opposing party's passenger is also safe.

In addition, distinguish the reference force of the original shape of riser 308 and the shape of buckling, owing to managing according to the upper-lower position of the scope of buckling, height and thickness of slab etc., therefore, safety can be maintained to certain level.

In addition, be located at the support 344 on riser 308, due to the direction of the buckling distortion of riser 308 is restricted to laterally, therefore, the condition precision in the time of can be initial with deflection is set the load of buckling well.

Especially, the moment that changes to horizontal component from sloping portion in the posture of step 30 is just in case situation occurred when riser 308 is bloated laterally, the angle of the adjacent step 30 in below just counteracts in the way bloating laterally, and the shape of buckling of riser 308 just becomes the state that two bulges have occurred.But, the conditional decision owing to being started by deflection the load of buckling, therefore, bring obstruction can not to the movement of step 30.In addition, owing to being formed with support 344, even therefore passenger's mischief of next stage or unconsciously kick riser 308, can buckling distortion yet, be safe.

In addition, posture at step 30 changes to the moment of horizontal part from rake, just in case when situation occurred bloats riser 308 laterally, the angle of the adjacent step 30 in below is just encountered riser 308 and is produced friction, but because the friction coefficient on riser 308 surfaces is low and level and smooth, therefore, it is flashy impacting the buckling distortion producing, and the injury that friction causes is very little.

In addition, when abnormal power disappears, because riser 308 is formed by rubber or synthetic resin, therefore utilize its recuperability from the recovery of shape of buckling to original shape.

[embodiment 2]

The step 30 of the escalator 10 of embodiment 2 then, is described with reference to Figure 10～Figure 13.

The difference of present embodiment and embodiment 1 is, the shape of buckling of riser 308.In embodiment 1, although riser 308 bloats laterally, in the present embodiment, as shown in Figure 10～Figure 13, riser 308 is the shapes that are recessed into the inside.

(1) formation of step 30

Formation for the step 30 of present embodiment, describes with reference to Figure 12, Figure 13.

The structure of pedal 304, upper gusset 306 is identical with embodiment 1.

Corresponding with the upper limit of the scope of buckling to the inside and the position of lower limit of riser 308, the back side of riser 308 is provided with notch part 350 and notch part 352.

In addition, on riser 308 is buckled the broach 314 of scope, be longitudinally formed with notch part 354.

In addition, at the back side of riser 308, be provided with a plurality of ribs 356 longitudinally.

In addition, though not shown, the riser of the scope of buckling 308 is made to plane rather than cylinder curved surface etc., also can consider to change slightly the shape of step 30, with the shape of buckling in inner side.

(2) operating state

Then, illustrate that masterpiece is downwards used for the situation on step 30 upper corners.

First, as shown in figure 12, the power on step 30 upper corners of acting on is downwards when reference force is following, and riser 308 maintains original shape.

Then, effect when passenger fall down or when suitcase and other items falls such large impulsive force and abnormal power do the used time downwards, as shown in Figures 10 and 11, upper gusset 306 and riser 308 local deformations, riser 308 is recessed into the inside.

Recessed reason is as follows.

The 1st reason is, is provided with notch part 352,354 at the back side of riser 308, when applying while buckling load, produces the moment of falling down to the inside in upper and lower end parts.Therefore, riser 308 easily produces recessed to the inside buckling distortion.

The 2nd reason is, owing to being provided with the notch part 354 longitudinally arranging on the broach 314 at riser 308, therefore, before buckling, not show in appearance identical rigidity with there is no the part of notch part 354.But for the load of buckling, comparing thickness with single broach 314 is that half drops to 1/4.If notch part 354 is increased, arrange two, be 1/9 in theory, with respect to longitudinal force, broach 314 is easily buckled.Therefore, riser 308 is easily recessed to the inside.

The 3rd reason is at the back side of riser 308, to be provided with broach such rib 356 and strengthened rigidity.Therefore, can make reliably the direction of buckling distortion towards inner side, can compensate the notch part 354 being arranged by the lines of the broach 314 along riser 308 and cause the load of buckling of decline.

The 4th reason is, as shown in figure 12, the rear portion of framework 301 is cut significantly so that riser 308 is easily crooked to the inside, only in the position of the notch part 350 on top, has protrusion 358.Therefore, when riser 308 is to the inside during recessed ground buckling distortion, the protrusion 358 in framework 302 rear portions just with notch part 350 butts on top, riser 308 is to the inside recessed more reliably.

In addition, though not shown, the riser 308 by scope that this is buckled makes plane rather than cylinder curved surface, thereby can prevent the moment that bulges.Therefore, the power energy precision of buckling is set the power of regulation well for, the notch part 350,352 at riser 308 back sides and be located at strip notch part 354 on broach 314 and the effect of rib 356 becomes reliably, can be reliably buckling distortion to the inside.

In addition,, when abnormal power disappears, because riser 308 is formed by rubber or synthetic resin, therefore, riser 308 utilizes its recuperability and from the recovery of shape of buckling to original shape.

(3) effect

Adopt present embodiment, because riser 308 is recessed into ground buckling distortion to the inside, therefore,, even if the moment that is varied to horizontal part from rake in the posture of step 30 is out of shape, the angle of the adjacent step 30 in below can not encountered riser 308 yet and be produced and slide.

In addition, the notch part 350,352 at riser 308 back sides and along notch part 354 and the rib 356 of broach 314 lines, owing to not affecting the outerplanar shape of step 30, therefore, the possibility that thing is clamped by the broach of the riser 308 of step 30 is little, can not damage safety.

In addition, as long as the scope of buckling is limited in the scope of the part on riser 308, conventionally by next stage passenger, kicked that to produce the worry buckle also few.

In addition, when abnormal power disappears, because riser 308 is formed by rubber or synthetic resin, therefore, riser 308 utilizes its recuperability and from the recovery of shape of buckling to original shape.

[embodiment 3]

The step 30 of the escalator 10 of embodiment 3 then, is described with reference to Figure 14～Figure 17.

The difference of present embodiment and embodiment 1 is, in embodiment 1, riser 308 bloats laterally, and in the present embodiment, as shown in Figure 14～Figure 17, carry out buckling distortion and be folded into wrinkle state, the part that riser 308 bloats laterally and the part bloating are to the inside at the state longitudinally alternately producing.

(1) formation of step 30

The formation of the step 30 of present embodiment is now described.

The formation of pedal 304 and upper gusset 306 is identical with embodiment 1.

The position that is upper and lower bound with the scope of buckling of riser 308 is corresponding, is provided with notch part 360, middle notch part 362 and lower notch part 364 at the back side of riser 308.

In addition, from the framework 302 of the position in corresponding with notch part 360, middle notch part 362 and lower notch part 364, be extruded with upper protrusion 366, middle protrusion 368 and lower protrusion 370.

In addition, on the back side of riser 308 between notch part 360 and middle notch part 362, be extruded with the such upper rib 372 of broach, between middle notch part 362 and lower notch part 364, be extruded with lower rib 374.

In addition, on middle notch part 362, be extruded with middle protrusion 368 butts and to the support 376,378 supporting that bloats to the inside.

In addition, for the broach 314 of riser 308, between upper notch part 360 and middle notch part 362, be provided with the broach notch part 380 of strip, and be provided with equally broach notch part 382 in middle notch part 362 position corresponding with lower notch part 364.

(2) operating state

Then, illustrate that masterpiece is downwards used for the situation on step 30 upper corners.

First, as shown in figure 16, the power on step 30 upper corners of acting on is downwards when reference force is following, and riser 308 maintains original shape.

Then, in effect, fall down or such large impulsive force and when abnormal masterpiece more than reference force is used on gusset 306 as shown in figure 17 when suitcase and other items falls as passenger, riser 308 becomes wrinkle state with regard to buckling distortion, between upper notch part 360 and middle notch part 362, riser 308 is recessed to the inside, position at middle notch part 362 bloats laterally, recessed to the inside between middle notch part 362 and lower notch part 364.

Now illustrate that riser 308 buckling distortions become the principle of wrinkle state.

The 1st reason is, because the back side at riser 308 is provided with upper notch part 360, middle notch part 362 and the lower notch part 364 of misrun shape (Japanese: Minus meat shape), therefore when applying buckling during load and just to produce the moment of falling down to the inside in upper and lower end parts downwards.Therefore, riser 308 is recessed into ground buckling distortion to the inside.

The 2nd reason is because broach 314 lines along riser 308 are interrupted the broach notch part 380,382 arranging, and to make easily to buckle in longitudinal paired broach 314 sides.Therefore, riser 308 is recessed into ground buckling distortion to the inside.

The 3rd reason is because the back side at riser 308 separates predetermined distance, to be provided with upper rib 372 and the lower rib 374 as broach, therefore the rigidity of inner side improves.Therefore, be left middle body and recessed ground, upward and downward inner side buckling distortion.

The 4th reason is, at the middle body of the scope of buckling, is provided with support 376,378, middle body do not bloated to the inside, due to middle protrusion 368 butts of this support 376,378 and framework 302, therefore be outside in the direction of this position buckling distortion.

As mentioned above, riser 308 buckling distortions become such state: the wrinkle state that the top of riser 208 is out of shape to the inside, is out of shape laterally, is out of shape to the inside at downside at central portion.

In addition,, when abnormal power disappears, because riser 308 is formed by rubber or synthetic resin, therefore, riser 308 utilizes its recuperability and from the recovery of shape of buckling to original shape.

(3) effect

Adopt present embodiment, because being folded into wrinkle state and neither also not carrying out laterally to the inside buckling distortion with bloating, riser 308 becomes wrinkle state, even if therefore in the situation that the moment that the posture of step 30 changes to horizontal part from rake produces buckling distortion, the angle of the adjacent step 30 in below can not encountered riser 308 yet and be produced slip.

In addition, owing to being provided with support 376,378, therefore even if passenger's mischief of next stage or unconsciously kick riser 308 can not produce buckling distortion yet, be safe.

In addition, because upper notch part 360, middle notch part 262, lower notch part 364, upper rib 372, the lower rib 374 at riser 308 back sides and the broach notch part 380,382 being located on broach 314 can not exert an influence to the external surface shape of riser 308, therefore clamp the possibility of thing, remain identical, can not damage safety.

In addition, adopt present embodiment, as embodiment 1 and embodiment 2, due to riser 308 not laterally or inner side bloat and be folded into wrinkle state and be out of shape, therefore can not encounter Next step 30.

In addition, when abnormal power disappears, because riser 308 is formed by rubber or synthetic resin, therefore, riser 308 utilizes its recuperability and from the recovery of shape of buckling to original shape.

[embodiment 4]

The step 30 of the escalator 10 of embodiment 4 then, is described with reference to Figure 18～Figure 22.

The difference of present embodiment and embodiment 1 is the structure that the bottom of riser 308 is supported.In embodiment 1, by 336 supportings (with reference to Fig. 8) of lower support parts, and in the present embodiment, as shown in figure 20 by thering are elastomeric lower support parts 384 supportings.That is, in the present embodiment, riser 308 carries out shear deformation and buckles to direction in face.When the power of buckling is reference force when above, riser 308 bottoms be fixedly that the above and lower support parts 384 of the load of regulation start deflection downwards.In addition, for upper gusset 306 and upper support parts 318, due to identical with the respective embodiments described above, description will be omitted.

(1) step 30

The structure of step 30 lower ends then, is described.

The lower end of framework 302 has the recess 394 that rear is cut, and this recess 394 comprises: end face 396; Vertical face 398; And from the bottom of vertical face 398 outstanding projection 400 rearward.

In the lower end of riser 308, as shown in Figure 18, Figure 19, be provided with lower support parts 384 every predetermined distance.Lower support parts 384 by metal sheet folding, curvedly there are elastomeric parts, comprising: by the buckle main body 386 of squarely of metal sheet; And extend from main body 386 seat part 388 arranging.Main body 386 is to be clamped ground state, to utilize bolt 392 to fix by the recess 394 of framework 302 lower ends and fixed parts 390.On the other hand, from main body 386, extending the bottom that the seat part 388 arranging embeds riser 308.

Lower support parts 384 in being arranged on recess 394 before, as shown in the long and two-short dash line of Figure 21, the end of main body 386 and seat part 388 are separated states, and by being arranged in recess 394, because the upper surface of main body 386 is urged and lower surface embeds projection 400, therefore buckle as the solid line of Figure 19.; lower support parts 384 are leaf spring steel plates of the original shape trapezoidal shape that forms long and two-short dash line; when these lower support parts 384 being fixed on to recess 394 when interior, framework 302 becomes retainer, and lower support parts 384 are out of shape and are fixed as Figure 19 solid line.In addition, the elastic support of lower support parts 384 is, makes the imaginary centre of gration of supporting be positioned at the outside O of riser 308 bottoms.Lower support parts 384 are by the leaf spring steel plate bending connecting rod mechanism of shape in echelon.

In addition, in the bottom, the back side of riser 308, be extruded with the such rib of broach 402.

In addition, as shown in Figure 18 and Figure 19, in order to allow upper down cut, on the surface of riser 308, be provided with some horizontal switch-in parts 404.

(2) operating state

The operating state of the step 30 of present embodiment then, is described.

In original shape, as shown in Figure 18, Figure 20, Figure 21, lower support parts 384 do not produce elastic deformation, and riser 308 does not carry out buckling distortion yet.That is, because the recess 394 in framework 302 bottoms becomes retainer, thereby the lower support parts 384 that form the spring plate of trapezoidal shape are urged installation, therefore lower support parts 384 act on recuperability all the time.Therefore,, as long as top does not act on the power over this recuperability, riser 308 is not just buckled.For local load, if riser 308 is not buckled outside face, the shape of the upper corner of step 30 is just maintained.

And while having acted on the large abnormal power of impulsive force when passenger falls down, as shown in figure 22, the riser 308 of step 30 carries out shear deformation with regard to part.The reason of this distortion is now described.

The 1st reason is, as shown in figure 19, due in order to allow that above-below direction shears, on riser 308, be laterally provided with some switch-in parts 404, therefore,, for local load, the riser 308 of take is not buckled as prerequisite outside face, riser 308 starts shear deformation, and the power of the end, upper angle of step 30 is just delivered to the below of riser 308.

The 2nd reason is, as shown in figure 22, when this power surpasses the recuperability of lower support parts 384 main bodys 386 that form trapezoidal shape, the shear deformation of riser 308 continues, and riser 308 becomes the state of buckling.

The 3rd reason is, because the back side at riser 308 is provided with the such rib of rubber 402, therefore also do not buckle outside face even if act on large impulsive force.

The 4th reason is, the lower support parts 384 that form trapezoidal shape in riser 308 bottoms are out of shape and play the function of connecting rod.Because the elastic support of lower support parts 384 is imaginary centre of gration to be located to the outside O point of riser 308, therefore form two hypotenuses of the bottom and upper segment of main body 386, in the outside of riser 308, be intersection point O, become the moment center in theory of mechanisms.Therefore, because the bottom of riser 308 will be rotated around this center moment, therefore the distortion of riser 308 bottoms do not bulge, Yi Bian Yi Bian but press to the inside distortion downwards.

In addition,, when abnormal power disappears, because riser 308 is formed by rubber or synthetic resin, therefore, riser 308 utilizes its recuperability and from the recovery of shape of buckling to original shape.

(3) effect

Adopt present embodiment, because riser 30 does not neither carry out shear deformation to the inside laterally with bloating yet, therefore, even if the posture at step 30 changes to the moment of horizontal part from rake, just in case situation occurred has carried out in the situation of distortion, the angle of the adjacent step 30 in below can not encountered riser 308 yet and be produced slip.

In addition, due in order not buckle on riser 308, at the back side of riser 308, be provided with the such rib of rubber 402 outside face, therefore, its back side is supported by framework 302, even passenger's mischief of next stage or unconsciously kick riser 308, can buckling distortion yet, be safe.

In addition, when abnormal power disappears, because riser 308 is formed by rubber or synthetic resin, therefore, riser 308 utilizes its recuperability and from the recovery of shape of buckling to original shape.

[embodiment 5]

The step 30 of embodiment 5 then, is described with reference to Figure 23 and Figure 24.

The difference of present embodiment and embodiment 1 is the upper support parts 406 that upper gusset 306 is supported.

The upper support parts 406 of present embodiment comprise: by the leaf spring steel plate deformed main body 408 of shape in echelon; And extend from this main body 408 the horizontal support portion 410 arranging.Horizontal support portion 410 is identical with embodiment 1, with downwards movably mode support upper gusset 306.Main body 408 is utilized bolt 414 and is fixed on the support plate 412 of being located at framework 302.

Upper support parts 406, the imaginary central axis O of the horizontal support portion 410 of its elastic deformation is located at the upper end of pedal 304.And the joint face of upper gusset 306 and pedal 304, forms respectively the circle centered by this center shaft O.Thus, upper gusset 306 is by horizontal support portion 410 elastic deformation and moving downwards downwards, in this case, because the joint face 416 of upper gusset 306 and the joint face 418 of pedal 304 form cylindrical shape centered by center shaft O, therefore, in horizontal support portion 410 downwards elastic deformation in the situation that, the joint face 416 of upper gusset 306 is along the joint face 418 of pedal 304 and move rotatably, and the gap between joint face 416 and joint face 418 can not expand.

In addition, in this case, though not shown, but the lower support parts 336 that arrange along riser 308 lower edge, its structure is made, and both the constraint of its above-below direction can be made to freedom, also can, in the bottom of riser 308 under state freely, make the riser 308 of a body action there is rigidity.

In addition,, when abnormal power disappears, because riser 308 is formed by rubber or synthetic resin, therefore, riser 308 utilizes its recuperability and from the recovery of shape of buckling to original shape.

[modification]

As the modification of above-mentioned embodiment, also such structure: be not upper gusset 306 is divided into a plurality of, and in one of left and right directions configuration gusset 306, as prescribed compartment of terrain utilizes upper support parts 318 to support gusset 306.

Above-mentioned, an embodiment of the present utility model has been described, but present embodiment being to propose as an example, is not the meaning that limits utility model scope.These new embodiments can be implemented by other various forms, within not departing from the scope of utility model aim, can carry out various omissions, displacement and change.These embodiments and its distortion, is included in utility model scope and main points, and is included in utility model that claims record and impartial scope thereof.

Claims (10)

1. a step for passenger conveyors, they are a plurality of connects into ring-type and carries out loopy moving, and the step of this passenger conveyors is characterised in that to have:

Step framework;

Being located at described step frame upper surface is the pedal that comprises broach on tread;

Upper gusset, on this, to be configured to described tread be same plane to gusset, and along the left and right directions configuration of the end, upper angle of described step, and comprise the broach continuous with the described broach of described pedal;

Upper support parts, these upper support parts are located at described step framework, so that described upper gusset only moves up and down freely gusset on this is supported below the position of described tread; And

Riser, this riser is located on described step framework, described upper gusset or described upper support parts are fixed in the top of this riser, the bottom of this riser is fixed on the bottom of described step framework, and this riser is from the specified force by downwards and form from the elastomeric material of buckling shape and can reset into described original shape from the described shape of buckling that original shape becomes regulation, and this riser comprises the broach continuous with the described broach of described upper gusset.

2. the step of passenger conveyors as claimed in claim 1, is characterized in that, for make described riser from described original shape become regulation described in the shape of buckling, in the scope of buckling of the described shape of buckling, have: the part of wall thickness; The part that wall thickness is thick; The notch part forming by incision; Or rib.

3. the step of passenger conveyors as claimed in claim 2, is characterized in that, the shape of buckling described in described riser is the shape that described riser bloats laterally.

4. the step of passenger conveyors as claimed in claim 2, is characterized in that, the shape of buckling described in described riser is described riser recessed shape to the inside.

5. the step of passenger conveyors as claimed in claim 2, is characterized in that, the shape of buckling described in described riser is the shape that bloats laterally of described riser and the described riser corrugated shape that recessed shape alternately forms to the inside.

6. the step of passenger conveyors as claimed in claim 3, is characterized in that, at described step framework or described riser, is provided with support, to make described step framework and described riser butt mutually support in the described scope of buckling.

7. the step of passenger conveyors as claimed in claim 4, is characterized in that, described notch part is located at respectively on the back side of the described riser corresponding with the upper and lower of the described scope of buckling.

8. the step of passenger conveyors as claimed in claim 4, is characterized in that, on the described broach of the described riser of the scope of buckling described in described notch part is located at.

9. the step of passenger conveyors as claimed in claim 4, is characterized in that, described rib is outstanding from the back side of the described riser of the described scope of buckling.

10. the step of passenger conveyors as claimed in claim 5, is characterized in that, at the back side of the described riser of the described scope of buckling, a plurality of described notch parts is set, described rib from the back side of the described riser of the described scope of buckling every predetermined distance give prominence to.

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