CN103031971B

CN103031971B - Suspention chain

Info

Publication number: CN103031971B
Application number: CN201110421677.9A
Authority: CN
Inventors: 生鹰道雄; 永井康词; 木原正挥; 安藤崇尚
Original assignee: Tsubaki Chain Co ltd
Current assignee: Tsubaki Chain Co ltd
Priority date: 2011-09-29
Filing date: 2011-12-15
Publication date: 2016-04-06
Anticipated expiration: 2031-12-15
Also published as: JP5709714B2; KR20130035159A; CN202483220U; KR101527461B1; JP2013072547A; TW201314074A; CN103031971A; TWI513924B

Abstract

The invention provides a kind of suspention chain, can tensile strength be improved and be reduced costs by easy structure.This suspention chain (100) is formed length direction is interconnected by connecting pin (130) by inner plate (120) and outer plate (110), to can the moving-member (310 of above-below direction movement, 410) power is transmitted, inner plate (120) is loosely inlaid on connecting pin (130) freely to rotate, is disposed in roller (140) the loosely inlaid periphery in connecting pin (130) freely to rotate between inner plate (120).

Description

Suspention chain

Technical field

The present invention relates to the suspention chain in motor vehicle space parking lot, the elevating stage being mounted with vehicle being moved in the vertical direction or the suspention chain that the forked lifting unit of fork truck is moved in the vertical direction.

Background technology

In the past, the chain be wound between two or more axis of rotation was not only used for transmitting power, also for mobile article.

Such as, there is a kind of suspention chain, for being equipped with the elevating stage of the vehicles such as automobile, two-wheeled motorcycle, bicycle in sky parking by attachment device suspention, and this elevating stage is moved in the vertical direction.

On drive the suspention chain of this kind of elevating stage to be arranged on track that the vertical direction along sky parking sets up, be arranged on the outstanding elevating stage of having hung oneself of attachment device of the suitable position of this suspention chain, and have on the track of the live-rollers be arranged on this attachment device in erection and advance, and driven by the motor etc. engaging the belt sprocket driven by clockwise direction or opposite direction with this suspention chain, elevating stage is made to move to the inbound/outbound process position (for example, referring to patent document 1) of sky parking.

This kind is applied in the suspention chain in the places such as sky parking, power transmission chain different from the past, although chain gait of march is quite low, but because whole loads of vehicle that the elevating stage of chain suspention and this elevating stage carry all act on chain, therefore require that tensile strength is large, and sky parking's scale is larger requires that chain is longer.

In the past, as shown in FIG. 9 and 10, the general general chain 500 used as suspention is formed as follows: interior chain, and the front and back press-in being relatively configured at the length direction of a pair inner plate 520 of both sides has a pair axle sleeve 550; Outer chain, the front and back being relatively configured at the length direction of a pair outer plate 520 of both sides are pressed into the connecting pin 530 of this axle sleeve 550 interspersed respectively; Interior chain and outer chain interconnected on chain length direction, roller 540 is outer to be freely to rotate embedded on respective axle sleeve 550.

Prior art document

Patent document

Patent document 1: real fair 3-31794 publication (in full, full figure)

Patent document 2: Unexamined Patent 5-287929 publication (Fig. 1 to Figure 10, Figure 13 to Figure 18)

Consider behavior in service when aforesaid elevating stage drives, wasting as follows or problem for driving the general chain of elevating stage to exist in the past.

Namely, conduction chain is different from when the elevating stage of sky parking is driven, because tensile load is very large, therefore the tensile strength improving chain is needed, but be not high-speed driving to the driving of elevating stage, chain axle sleeve is also considerably less compared with driving chain with the mutual rotation produced between connecting pin, therefore without the need to considering fatigue strength especially.

But, because this general chain designs as the tensile strength and fatigue strength having general chain concurrently, therefore, the strength condition needed for the elevating stage of above-mentioned sky parking driven can not be met completely.

Therefore, when using general chain, have employed the high-performance chain of the tensile strength being applicable to stringent condition, but basic very high without the need to fatigue strength, that is employ the chain with a lot of design wastes, thus cause cost up.

In addition, in sky parking, due in the vertical direction and horizontal direction be covered with chain, therefore the path of cyclic track is elongated, the foozle of each chain, assembly error become for chain entirety the problem that can not ignore after accumulating, in addition, the elongated weight of the elevating stage, vehicle etc. being suspended to chain that makes in path becomes large, the large load be applied on reel chain causes chain to produce sizable distortion, therefore, the twisted chain that will cause caused by these reasons produces transverse bending and twisted, thus causes chain to be difficult to successfully advance.

And then, as mentioned above, because the frequency of the mutual rotation between interior chain and outer chain is very low, therefore, although the demand degree step-down of the parts such as the axle sleeve that reply high-frequency rotates, must arrange this kind of part as general chain, therefore this just becomes a major reason that can not reduce costs.

Summary of the invention

The present invention is intended to the problem solving above-mentioned prior art, namely the object of the present invention is to provide a kind of suspention chain, can improve tensile strength and be reduced costs by easy structure.

Suspention chain described in the present invention program 1, inner plate and outer plate are interconnected and to the moving-member of above-below direction movement transmitting power at length direction by connecting pin, described inner plate is loosely inlaid in described connecting pin freely to rotate, be disposed in the roller loosely inlaid periphery at described connecting pin freely to rotate between described inner plate, solve above-mentioned problem thus.

Suspention chain described in the present invention program 2 is on the architecture basics described in scheme 1, and described outer plate and described inner plate are formed as identical shape, solve above-mentioned problem thus.

Suspention chain described in the present invention program 3 is on the architecture basics described in scheme 1 or scheme 2, the shape of the both side ends of described inner plate is arc-shaped, when the internal diameter inserting the hole of described connecting pin when this end is D, the peripheral radius of this end and the difference of inner circumferential radius are h, the relation of 2h >=D is set up, and solves above-mentioned problem thus.

Suspention chain described in the present invention program 4 is on the architecture basics according to any one of scheme 1 to scheme 3, the shape of the both side ends of described inner plate is arc-shaped, when the peripheral radius of this end and the difference of inner circumferential radius be h, the width of two ends bonding position between an end and another end be H time, the relation of 2h >=H is set up, and solves above-mentioned problem thus.

Suspention chain described in the present invention program 5 is on the architecture basics according to any one of scheme 1 to scheme 4, the shape of the both side ends of described inner plate is arc-shaped, attenuate in middle arcuation between an end and another end shape, when the radius of the arc that the peripheral radius when end is r, middle arcuation attenuates shape is R, the relation of r=R is set up, and solves above-mentioned problem thus.

Invention effect

Suspention chain described in the present invention program 1, formed length direction is interconnected by connecting pin by inner plate and outer plate, to can above-below direction movement moving-member transmit power, inner plate is loosely inlaid on connecting pin freely to rotate, be disposed in the roller loosely inlaid periphery at connecting pin freely to rotate between inner plate, parts thus without the need to arranging non-essential axle sleeve and so on specially also can be formed can carry high-tensile suspention chain, therefore, it is possible to cut down part number of packages thus the cost of parts of reduction chain.

In addition, such as, by an outer plate, inner plate, a roller, another inner plate and another outer plate are configured to row, and once intert connecting pin thus once link operation, realized interting connecting pin in making band axle sleeve after chain in the past by a step with the step of installing these two making chains of outer chain, it is twisted that the transverse direction of inner plate produced during chain in the production process and can eliminating that can simplify chain thus makes distorts the assembling caused, thus can improve the making precision of chain entirety.

And then, owing to not arranging axle sleeve on inner plate, the area around the connecting pin fitting portion of inner plate becomes large, therefore, the tensile strength of inner plate can be improved, thus become and be suitable for can the chain that moving-member drives, tensile strength is high of vertically movement.

In addition, inner plate is loosely inlaid on connecting pin freely to rotate, thus, although do not arrange axle sleeve, still can mutually freely rotate between connecting pin and inner plate, therefore be hung around by suspention chain when sprocket wheel makes it rotate, inner plate and connecting pin and relatively rotating of outer plate also can successfully be carried out, thus suspention chain can be made successfully to advance.

Suspention chain described in the present invention program 2, on the basis of the effect reached in the present invention program 1, outer plate and inner plate are formed as identical shape, thus, do not exist as the inner plate of general chain and the size difference of outer plate in the past, inner plate and outer plate have identical size, can be made up of large-sized part, therefore, it is possible to reduce the kind making chain part used, thus reduce production job, cost of manufacture and part management burden.

Suspention chain described in the present invention program 3, on the basis of the effect reached in the present invention program 1 or scheme 2, the shape of the both side ends of inner plate is arc-shaped, when the internal diameter being interspersed with the hole of connecting pin of this end is D and the difference of the peripheral radius of this end and inner circumferential radius is h, the relation of 2h >=D is set up, thus compared with the structure of the relation of the 2h < D in the past set up, the internal-and external diameter that easily can expand inner plate end is poor, thus the area of inner plate can be expanded, therefore, it is possible to improve the tensile strength of inner plate.

Suspention chain described in the present invention program 4, on the basis of the effect reached any one of the present invention program's 1 to scheme 3, the shape of the both side ends of inner plate is arc-shaped, when the peripheral radius of this end and the difference of inner circumferential radius are h, and the width of two ends bonding position between an end and another end is when being H, the relation of 2h >=H is set up, thus compared with the structure of the relation of the 2h < H in the past set up, the internal-and external diameter that easily can expand inner plate end is poor, thus expand the area of inner plate, therefore, it is possible to improve the tensile strength of inner plate.

Suspention chain described in the present invention program 5, on the basis of the effect reached any one of the present invention program's 1 to scheme 4, the shape of the both side ends of inner plate is arc-shaped, attenuate in middle arcuation between an end and another end shape, peripheral radius when end is r, when and middle arcuation attenuates, the radius of the arc of shape is R, the relation of r=R is set up, thus, the middle arcuation of the inner plate part of shape that attenuates seamlessly is adjoined being stamped out in the manufacturing process of multiple inner plate by one piece of metal sheet etc. with the end of other inner plate, and the middle arcuation of the end of an inner plate and other inner plate is attenuated shape seamlessly adjacent punch forming, therefore, it is possible to raising yield rate.

Accompanying drawing explanation

Fig. 1 is the partial plan of suspention chain described in the present invention the 1st embodiment;

Fig. 2 is the surface figure of the suspention chain shown in Fig. 1;

Fig. 3 is the plan view of the inner plate of inner plate of the present invention and known technology;

Fig. 4 is the arrangement diagram of the stamped operation of inner plate of the present invention;

Fig. 5 is for applying the summary lateral view of the chain of suspention shown in Fig. 1 sky parking;

The suspention chain that Fig. 6 is the sky parking shown in Fig. 5 is advanced schematic isometric;

Fig. 7 is for applying the approximate three-dimensional map of the chain of suspention shown in Fig. 1 fork truck;

Fig. 8 is suspention portion of chain plan view described in the present invention the 2nd embodiment;

Fig. 9 is existing suspention portion of chain plan view;

Figure 10 is existing suspention portion of chain side view.

The explanation of symbol

100,200,500...... suspention chain

110,210,510...... outer plate

120,220,520...... inner plate

130,230,530...... connecting pin

140,240,540...... roller

281...... outer plate in the middle of

282...... inner plate in the middle of

300...... sky parking

310...... elevating stage

320...... motor

330...... axis of rotation

340...... chain drive-belt

350...... the 1st sprocket wheel

360...... the 2nd sprocket wheel

370...... the 3rd sprocket wheel

380...... post

400...... fork truck

410...... forked lifting unit

420...... sprocket wheel

430...... mast

550...... axle sleeve

PL...... metal sheet

Detailed description of the invention

The invention provides a kind of suspention chain, it is characterized in that, inner plate and outer plate are interconnected and to the moving-member of above-below direction movement transmitting power at length direction by connecting pin, inner plate is loosely inlaid in connecting pin freely to rotate, be disposed in the ground roll loosely inlaid periphery at connecting pin freely to rotate between inner plate, thus improve tensile strength and reduced costs by easy structure.As long as can obtain above-mentioned effect, then its concrete embodiment can be any-mode.

Namely, form the raw material of suspention chain itself, as long as have the material of excellent tensile strength under typical temperature, the any materials such as the metal material of iron class or iron clad class, but consider and need certain tensile strength, the tensile strength of the part of interior outer plate, connecting pin and roller etc. and anticorrosive property etc., the chain preferably formed by steel class material.

Suspention chain also can adopt such as by omitting the part of the minimizing to greatest extent number of packages chain that in roller, outer plate and connecting pin are formed.

But, consider that suspention chain is sticked in the engaging tooth of sprocket wheel and drives under large tensile load, the place engaged with sprocket wheel engaging tooth needs the size (diameter) had to a certain degree, and consider when connecting pin is major diameter, the diameter inserting the end of the interior outer plate of connecting pin also needs to become large, for this reason, mode chain being engaged by roller with sprocket wheel is more suitable.

In addition, there is the long-life and Maintenance free to realize suspention chain, also can adopt the chain of nothing for oil supply retaining sliding agent at the inner peripheral surface of roller and/or the slide plane of carrier bar.

In addition, no matter this suspention can be connected to transmitting the mode of power at the moving-member of above-below direction movement with chain, is ring-type or has and hold shape.

Made the mechanism of moveable moving-member vertically movement by suspention chain, suspention chain not only can be made to advance at above-below direction, suspention chain can also be made to advance on above-below direction and transverse direction.

In other words, as long as can by can the Gravitative Loads of moving-member of above-below direction movement in the mechanism of suspention chain.

Embodiment 1

Below, referring to figs. 1 through Fig. 7, the suspention chain 100 of the present invention the 1st embodiment is described.

Fig. 1 is the partial plan of suspention chain described in the present invention the 1st embodiment; Fig. 2 is the surface figure of the suspention chain shown in Fig. 1; Fig. 3 is the plan view of inner plate of the present invention and existing inner plate; Fig. 4 is the arrangement diagram of the stamped operation of inner plate of the present invention; Fig. 5 is for applying the summary lateral view of the suspention chain sky parking shown in Fig. 1; The suspention chain that Fig. 6 is the sky parking shown in Fig. 5 is advanced schematic isometric; Fig. 7 is for applying the approximate three-dimensional map of the chain of suspention shown in Fig. 1 fork truck.

The suspention chain 100 of the present embodiment, as shown in Figure 1, chain length direction is relatively arranged alternately with a pair inner plate 120 and outer plate 110, connecting pin 130 is run through wherein thus make inner plate 120 and outer plate 110 interconnected in the longitudinal direction, be formed as suspention chain 100.

Because outer plate 110 and inner plate 120 are formed as same shape, therefore, when making part, do not need preparation two kinds of puncheds, thus cost of manufacture and part keeping cost can be reduced, and the possibility of parts error assembling can be reduced, therefore boost productivity further.

Certainly, if the outer plate be formed as general chain is less than the structure of inner plate thus has the vehicle-mounted retainer function of driving, also without any problem.

Owing to eliminating axle sleeve in the suspention chain 100 of the present invention the 1st embodiment, therefore, as shown in the inner plate 120 of right-hand member in Fig. 2, the peripheral radius of inner plate 120 end in arc-shaped and the difference of inner circumferential radius are h, and the area of inner plate 120 end can be made to become large.

Illustrate in further detail, the chain 500 of suspention in the past, as shown in the inner plate 520 of right-hand member in Figure 10, in the end of arc-shaped inner plate 520, press-in has axle sleeve 550, and therefore the peripheral radius of inner plate 520 and the difference h of inner circumferential radius have to the amount of the thickness reducing axle sleeve 550.

On the other hand, once eliminate axle sleeve as the present embodiment, as previously mentioned, the peripheral radius of inner plate 120 end and the difference h of inner circumferential radius can be made to become greatly, therefore, it is possible to increase the area of inner plate 120 thus the tensile strength of raising inner plate 120.

Therefore, by not adding axle sleeve as the present invention the 1st embodiment, even if do not change the outside dimension of suspention chain 100, also can improve its tensile strength, thus the suspention chain 100 with the characteristic being applicable to suspention purposes can be made at low cost.

Or, form as follows: little than in the past of the size of inner plate 120, size is less compared with the suspention chain with equal tensile strength.

In addition, although connecting pin 130 relatively outer plate 110 can not be installed mutually rotationally, thus guarantee form stable, but be provided with small gap between connecting pin 130 and inner plate 120 thus loosely inlaid inner plate 120 freely to rotate, therefore, inner plate 120 and outer plate 110 can freely relatively rotate, thus guarantee the free bend needed for chain.

In addition, in the present invention the 1st embodiment, by methods such as press-in connecting pins 130, outer plate 110 can be fixed relative to connecting pin 130, inner plate 120 is loosely inlaid freely to rotate relative to connecting pin 130, but such as, as long as take to come off to prevent outer plate 110 in measure such as the configuration of the both sides of connecting pin 130 most external locating snap ring or latch etc., also can connecting pin 130 be fixed on inner plate 120, outer plate 110 is mutually loosely inlaid with connecting pin 130, or can by all loosely inlaid freely to rotate relative to connecting pin 130 for inside and outside two carrier bars 110,120.

And then, suspention described in the present invention the 1st embodiment is with in chain 100, roller 140 is freely to rotate fitted in the outside of connecting pin 130, owing to being engaged with sprocket wheel by roller 140, therefore, the excessive tractive force produced by the engaging tooth of sprocket wheel can not act in the part on the surface of the connecting pin 130 of minor diameter, and bears the driving force of sprocket wheel with the outer peripheral face of roller 140 entirety.

Thus, greatly reduce the possibility of damage suspention chain 100, thus suspention chain 100 can successfully be operated for a long time.

In addition, described in the present invention the 1st embodiment, suspention is with in chain 100, as shown in Fig. 3 (A), inner plate 120 is formed as follows: the internal diameter in the hole of the interspersed connecting pin 130 namely in the end of inner plate 120 is D, and the difference of the peripheral radius of end and inner circumferential radius is when being h, the relation of 2h >=D is set up.

On the other hand, in existing suspention chain 500, as shown in Fig. 3 (B), inner plate 520 is formed as follows: the internal diameter in the hole of the connecting pin 130 namely interted in the end of inner plate 520 is D ', and the difference of the peripheral radius of end and inner circumferential radius is when being h, the relation of 2h ' < D ' is set up.

By above-mentioned difference, described in the 1st embodiment, suspention chain 100 is compared with existing structure, and the internal-and external diameter that easily can expand inner plate 120 end is poor, thus can expand the area of inner plate 120, therefore improves the tensile strength of inner plate 120.

And then, suspention described in this 1st embodiment is with in chain 100, as shown in Fig. 3 (A), inner plate 120 is formed as follows: namely when the width in the direction relative to the two ends connected between an end of inner plate 120 and another end is H, and the relation of 2h >=H is set up.

On the other hand, in existing suspention chain 500, as shown in Fig. 3 (B), inner plate 520 is formed as follows: namely when the width in the direction relative to the two ends connected between an end of inner plate 520 and another end is H ', and the relation of 2h ' < H ' is set up.

In addition, suspention described in the 1st embodiment is with in chain 100, as shown in Fig. 3 (A), inner plate 120 is formed as follows: the shape namely between an end and another end of inner plate 120 is that middle arcuation attenuates shape, the peripheral radius of its end is r, when and middle arcuation attenuates, the arc radius of shape is R, the relation of r=R is set up.

On the other hand, in existing suspention chain 500, as shown in Fig. 3 (B), inner plate 520 is formed as follows: the shape namely between an end and another end of inner plate 520 is that middle arcuation attenuates shape, the peripheral radius of its end is r ', middle arcuation attenuates the arc radius of shape when being R, and the relation of r ' < R ' is set up.

In the past stamp out the manufacturing process of multiple inner plate 520 from one piece of metal sheet etc., this difference causes when making an inner plate 520 adjoin with other inner plates 520, produce between an inner plate 520 and other inner plates 520 between unnecessary gap, therefore cause yield rate very low.

On the other hand, inner plate 120 of the present invention, as shown in Figure 4, stamping out in the manufacturing process of multiple inner plate 120 from one piece of metal sheet PL etc., seamlessly adjoin with the end of other inner plates 120 due to the attenuate part of shape of the middle arcuation of an inner plate 120 can be made, make the middle arcuation of the end of an inner plate 120 and other inner plates 120 attenuate the part seamlessly adjacent punching press of shape simultaneously, therefore, compared with the pastly can improve yield rate.

Suspention chain 100 is formed in the above described manner, and then, can the moving-member of above-below direction movement by the suspention of such as not shown attachment device.

Such as shown in figs.5 and 6, suspention chain 100 is arranged at sky parking 300.

Suspend in midair with chain 100 as being connected with a part for suspention chain 100 at the elevating stage 310 of an example of the moving-member of above-below direction movement and being suspended along post 380, vehicle is loaded on elevating stage 310.

More specifically describe, sky parking 300 has: motor 320, chain drive-belt 340, axis of rotation 330, a pair the 1st sprocket wheels 350, a pair the 2nd sprocket wheels 360, a pair the 3rd sprocket wheels 370, elevating stage 310, four articles of suspention chains 100 and posts 380.

Make motor 320 rotate by action button, the power of motor 320 is delivered to axis of rotation 330 by chain drive-belt 340, thus a pair the 1st sprocket wheels 350 rotating integrally with axis of rotation 330 and a pair the 3rd sprocket wheels 370 are rotated.

At this, four articles of suspention chains 100 are hung around on a pair the 1st sprocket wheels 350 and a pair the 3rd sprocket wheels 370 respectively.

Wherein, hang the two articles of suspention chains 100 being around in a pair the 1st sprocket wheels 350 and be also hung around on a pair the 2nd sprocket wheels 360 respectively, two suspention one end of chain 100 are connected respectively with about the front side as vehicle entrance side on elevating stage 310.

One end is when the 1st sprocket wheel 350 reels the suspention chain 100 of elevating stage 310 side in addition, is connected with not shown parts not hinder the mode of driving.

In addition, hang the one end of the two articles of suspention chains 100 be around on a pair the 3rd sprocket wheels 370, be connected respectively with about the rear side of elevating stage 310.

One end is when the 2nd sprocket wheel 360 reels the suspention chain 100 of elevating stage 310 side in addition, is connected with not shown parts not hinder the mode of driving.

When motor 320 rotates to a direction, elevating stage 310 rises along post 380; When motor 320 rotates round about, elevating stage 310 declines along post 380.

In addition, Fig. 5 and Fig. 6 diagrammatically show the general structure of sky parking 300, but has various form during actual disposition.

In addition, such as shown in Figure 7, suspention chain 100 is arranged on fork truck 400.

And, the forked lifting unit 410 of an example of moving-member of above-below direction movement can be connected with a part for suspention chain 100 and be suspended and suspend in midair with chain 100 as along mast 430, forked lifting unit 410 is mounted with container and other items.

More specifically describe, fork truck 400 has the motor of not shown belt sprocket, sprocket wheel 420, forked lifting unit 410, suspention chain 100 and mast 430.

And, make the motor of belt sprocket rotate by the operation of operator, and transmit power to the suspention chain 100 that extension is around on sprocket wheel 420.

At this, a part for suspention chain 100 is connected with forked lifting unit 410.

In addition, when suspention chain 100 holds shape for having, its one end can be connected with forked lifting unit 410, and when suspention chain 100 is ring-type, its part can be connected with forked lifting unit 410.

When the motor of belt sprocket rotates towards a direction, forked lifting unit 410 rises along mast 430, and when the motor of belt sprocket rotates in the opposite direction, forked lifting unit 410 declines along mast 430.

Embodiment 2

Below, with reference to Fig. 8, suspention chain 200 described in the present invention the 2nd embodiment is described.

Fig. 8 is the partial plan of suspention chain 200 described in the present invention the 2nd embodiment.

Suspention chain 200 described in 2nd embodiment suspention chain 100 described in the 1st embodiment is arranged to multiple row form, because most inscape is identical with suspention chain described in the 1st embodiment, therefore, to identical structure in this detailed, only pay the symbol of rear two common 200 series.

Suspention chain 200 described in the present invention the 2nd embodiment, two row are arranged in order to improve tensile strength further, outer plate 210 and inner plate 220 is arranged alternately with in both sides, middle outer plate 281 and middle inner plate 282 is configured with at central portion, make the through outer plate 210,220 in these of connecting pin 230 and make them interconnected at length direction, thus forming ring-type suspention chain 200.

In addition, each roller 240 is loosely inlaid freely to rotate, and between inner plate 220 and middle inner plate 282, axle sleeve is omitted, and these are all identical with the situation of the suspention chain 100 of the 1st embodiment.

Suspention chain 200 described in the present invention the 2nd embodiment, is configured with four blocks of plates in both sides and central portion, therefore, compared with suspention chain 100 described in the 1st embodiment configuring 2 blocks of plates in both sides, can reach the tensile strength of about 2 times.

In addition, about middle outer plate 281 and middle inner plate 282, have employed the shape identical with outer plate 210 and inner plate 220, making and the keeping cost of part can be reduced thus.

Suspention chain 100 and 200 described in the embodiment of the present invention so obtained, inner plate 120 and 220 is loosely inlaid on connecting pin 130 and 230 freely to rotate, be disposed in the roller 140 and 240 loosely inlaid periphery at described connecting pin 130 and 230 freely to rotate between inner plate 120 and 220, thus, unnecessary part can not only be reduced, high-tensilely can also reduce cost of manufacture carrying simultaneously.

In addition, by reducing number of parts, chain production process can be simplified thus boost productivity, meanwhile, the assembly error of the assembling procedure generation be omitted can be eliminated, thus improve the assembly precision of suspention chain 100 and 200 entirety.

And then outer plate 110,210 and inner plate 120,220 are formed as identical shape, and can reduce the cost of manufacture of part and the management cost etc. of part thus, effect is very large.

In addition, in inner plate 120, the relation of described 2h >=D and the relation of 2h >=H have an establishment at least, thus, compared with complete invalid situation, can improve the tensile strength of inner plate 120.

And then in inner plate 120, the relation of described r=R is set up, and thus compared with invalid situation, can improve yield rate.

Claims

1. a suspention chain, is characterized in that: formed length direction is interconnected by connecting pin by inner plate and outer plate, to the moving-member of above-below direction movement transmitting power;

Described inner plate is loosely inlaid on described connecting pin rotatably;

Be arranged on the roller loosely inlaid periphery at described connecting pin rotatably between described inner plate;

Described outer plate and described inner plate are formed as identical shape.

2. suspention chain according to claim 1, it is characterized in that: the shape of the both side ends of described inner plate is arc-shaped, when the internal diameter in the hole of the interspersed described connecting pin of this end is D and the difference of the peripheral radius of this end and inner circumferential radius is h, the relation of 2h >=D is set up.

3. suspention chain according to claim 1, it is characterized in that: the shape of the both side ends of described inner plate is arc-shaped, when the peripheral radius of this end is h with the difference of inner circumferential radius and is H relative to the width in the direction at the two ends be connected between an end and another end, the relation of 2h >=H is set up.

4. suspention chain according to claim 2, it is characterized in that: the shape of the both side ends of described inner plate is arc-shaped, when the peripheral radius of this end is h with the difference of inner circumferential radius and is H relative to the width in the direction at the two ends be connected between an end and another end, the relation of 2h >=H is set up.

5. suspention chain according to claim 1, it is characterized in that: the shape of the both side ends of described inner plate is arc-shaped, the shape attenuated in middle arcuation between an end and another end, when the peripheral radius of both side ends is r and the arc radius of shape that middle arcuation attenuates is R, the relation of r=R is set up.

6. suspention chain according to claim 2, it is characterized in that: the shape of the both side ends of described inner plate is arc-shaped, the shape attenuated in middle arcuation between an end and another end, when the peripheral radius of both side ends is r and the arc radius of shape that middle arcuation attenuates is R, the relation of r=R is set up.

7. suspention chain according to claim 3, it is characterized in that: the shape of the both side ends of described inner plate is arc-shaped, the shape attenuated in middle arcuation between an end and another end, when the peripheral radius of both side ends is r and the arc radius of shape that middle arcuation attenuates is R, the relation of r=R is set up.

8. suspention chain according to claim 4, it is characterized in that: the shape of the both side ends of described inner plate is arc-shaped, the shape attenuated in middle arcuation between an end and another end, when the peripheral radius of both side ends is r and the arc radius of shape that middle arcuation attenuates is R, the relation of r=R is set up.