CN101407302B - Conveyor apparatus - Google Patents

Abstract

The inventive conveyor apparatus has a chain driving mechanism causing circulating chains to move and apply thrust on a step guide rail. The circulating chains inflicts a connecting structure on a plurality of chains with the same pitch length of the step guide rail or multiple time through a pin, and a bearing surface for bearing the step guide rail and a pushing surface contacting with a step roller at a front and rear of the step roller on the bearing surface are provided on each chain.

Description

Feedway

Technical field

The present invention relates to feedways such as escalator and moving walk, relate in particular to circulation link chain and can not produce pulsation, stand in the feedway of feeling good on the pedal.

Background technology

The structure that thereby feedway such as escalator and moving walk is the passenger that a plurality of pedal cycle of ring-type bonded assembly moved will stand on the pedal to be carried from the downward ladder way of using escalator mouth.The pedal roller is installed on a plurality of pedals, rolls on the pedal guide rail that is arranged on the works by the pedal roller, each pedal circulates between using escalator mouth and following ladder way under the maintenance horizontal state and moves.Usually, these pedals are connected by pedal chain, all pedals synchronously, are not produced with gap move by driving this pedal chain.

Above-mentioned pedal chain is by drive mechanism, and the general employing of this driver train is by the type of chain wheel drive chain ends.Usually such driver train is arranged near near or the following ladder way of using escalator mouth.Yet, in the feedway of pedal miles of relative movement length,, only depend on the driver train of chain ends can't transmit enough propulsive efforts sometimes because it is bigger to act on the load of pedal chain.For this reason, the long feedway of pedal miles of relative movement etc. has been proposed following structure, promptly for can reel chain midway (part beyond the chain change of direction end of turning back) give propulsive effort, with driver train in reel chain decentralized configuration (with reference to patent documentation 2,3) midway.

The driver train that the chain at feedway like this applies propulsive effort midway generally comprises electrical motor as drive source, passes to the chain drive force transfer mechanism of the pedal chain that linearity extends with propulsive effort amplification ten multi-fold reductors, with propulsive effort.At this, if with sprocket wheel as the chain drive force transfer mechanism because the pedal chain of linearity can not be wound on this sprocket wheel, so contact-ratio descends.For this reason, as the chain drive force transfer mechanism, for example use the structure shown in Figure 1A and Figure 1B.

That is, shown in Figure 1A and Figure 1B, in propulsive effort transmission mechanism 100, the pedal chain that connects pedal 101 is made of the long band toothed chain bar 102 of zip length.Make circulation link chain 104 circulations drive this band toothed chain bar 102 with roller 103.

Patent documentation 1: 2004-No. 224567 communiques of TOHKEMY

Patent documentation 2: Japan opens clear 47-No. 19989 communiques in fact

Patent documentation 3: 47-No. 10873 communiques of Japanese kokai publication sho

Yet when the band toothed chain bar 102 that such zip length is long was used as pedal chain, in the feedway end that these band toothed chain bar 102 change of directions are turned back, comparing with common pedal chain can generation speed inequality.Therefore, be difficult to utilize the circular chain-wheel of constant speed rotation to make pedal 101 upsets.Therefore, in the time will being with toothed chain bar 102 as pedal chain, the guide rail of needs use simulation arc shape etc. makes this band toothed chain bar 102 upsets.Therefore, the driver train as driving pedal chain is difficult to use in the lump the chain wheel driving mechanism that has used cheap standard.

For this reason, as the driver train that applies propulsive effort at feedway midway, preferably can drive the driver train of the type of normally used pedal chain.

But its zip length of common pedal chain is shorter, can't obtain to make circulation link chain to circulate and drive required enough tooth matching angles.Therefore, need be provided for suppressing the mechanism etc. of pedal chain come-up.

As in the feedway of pedal chain,, need carry out the improvement of shape easily at the chain that chain link is long, make circulation link chain also have with zip length more than the pedal chain same degree etc. in order to deepen the tooth matching angle with pedal chain.

But, being arranged in the feedway driver train midway, the circulation link chain that has with zip length more than the chain equal extent in driving carries out circulation time, and the number of teeth of sprocket wheel is less concerning common chain wheel drive.Therefore, circulation link chain and pedal chain can produce pulsation, diminish the sensation that stands on the pedal.

And, even the space that the chain link that can prolong circulation link chain improves shape is set, but specifically do not disclose intensification ingear shape in the past, thereby need study again this.

Summary of the invention

In view of this, the object of the present invention is to provide a kind of feedway, this feedway has the driver train that applies propulsive effort midway at feedway, can apply propulsive effort to common pedal chain when realizing enough tooth matching angles, and the passenger stands on the pedal and feels good.

The feedway of first viewpoint of the present invention comprises: the pedal guide rail; The a plurality of pedals that move along the pedal guide rail; The pedal chain that connects a plurality of pedals; Drive the chain drive mechanism of pedal chain.

Pedal chain has at a plurality of pedal rollers that roll on the pedal guide rail, is configured in a plurality of pedal chain links between each pedal roller, by in a plurality of pedal rollers continuously the pedal roller of stated number engage successively with each pedal, a plurality of thus pedals obtain connection.

Chain drive mechanism comprises: rotating driving device; The drive sprocket that under the propulsive effort effect of rotating driving device, is rotated; Be configured between drive sprocket and the pedal chain, rotatablely moving and carry out circulating motion with drive sprocket with circulation link chain to the pedal chain applied thrust.

The circulation link chain of chain drive mechanism has the identical or a plurality of chain links of its multiple of the pitch length of pitch length and pedal chain link, become the bearing pin of joint of the chain link of these circulation link chains.Be provided with on the chain link of circulation link chain the carrying pedal chain the pedal roller pedal roller carrying surface and with this pedal roller carrying surface on the pedal roller before and after the contacted pushing face of pedal roller.

Adopt the feedway of the present invention's first viewpoint, utilize the circulation link chain of chain drive mechanism, can under the state of keeping dark tooth matching angle, suitably drive pedal chain, can suppress to constitute the localized wear of the circulation link chain of chain drive mechanism, make feeling good of the passenger that stands on the pedal.

Description of drawings

Fig. 1 is the figure that represents feedway in the past.

Fig. 2 is the lateral plan of the feedway of expression the present invention first example.

Fig. 3 is the lateral plan of chain drive mechanism of the feedway of expression the present invention first example.

Fig. 4 is the birds-eye view of chain drive mechanism of the feedway of expression the present invention first example.

Fig. 5 is the front section view of chain drive mechanism of the feedway of expression the present invention first example.

Fig. 6 is near the front section view the circulation link chain of chain drive mechanism of feedway of expression the present invention first example.

Fig. 7 is the block diagram of a part of chain drive mechanism of the feedway of expression the present invention first example.

Fig. 8 is the circulation link chain shape of chain drive mechanism of feedway of expression the present invention first example and the instruction diagram of effect.

The birds-eye view of Fig. 9 other chain drive mechanism that to be expression different with Fig. 4 and chain drive mechanism shown in Figure 5.

Figure 10 is the figure of the pitch length of expression chain link plate circulation link chain when being the twice of pitch length of pedal chain link.

Figure 11 is the partial enlarged drawing of expression circulation with guide rail.

Figure 12 is the lateral plan of chain drive mechanism of the feedway of expression the present invention second example.

Figure 13 is the partial enlarged drawing of expression circulation with guide rail.

Figure 14 is the summary mode chart that is arranged on the stretching device in the chain drive mechanism of the feedway of expression the present invention the 3rd example.

Figure 15 is the lateral plan of drive sprocket (driven sprocket) of chain drive mechanism of the feedway of the present invention's the 3rd example.

Figure 16 is near the front section view the circulation link chain of chain drive mechanism of feedway of expression the present invention the 3rd example.

Figure 17 is the birds-eye view with a part of exploded representation of the circulation link chain that chain drive mechanism had of the feedway of the present invention's the 4th example.

Figure 18 is the lateral plan of circulation link chain of chain drive mechanism of the feedway of expression the present invention the 4th example.

Figure 19 is near the front section view the circulation link chain of chain drive mechanism of feedway of expression the present invention the 4th example.

The specific embodiment

Below, with reference to accompanying drawing example of the present invention is elaborated.

(first example)

With reference to Fig. 2 to Figure 11 the present invention's first example is described.

At first the summary to the feedway of this example describes.

As shown in Figure 2, feedway 1 comprises: be installed in the pedal guide rail 3 on the works 2; The a plurality of pedals 5 that move along pedal guide rail 3; The pedal chain 4 that connects a plurality of pedals 5; Drive the chain drive mechanism 10 of pedal chain 4.

As shown in Figure 3A, wherein pedal chain 4 has a plurality of pedal chain link 4a and a plurality of pedal roller 4b.Pedal roller 4b is the roller that rolls on pedal guide rail 3.Pedal chain link 4a is configured in respectively between the adjacent pedal roller 4b.Pedal chain 4 engages respectively with a plurality of pedals 5 by the pedal roller of every stated number configuration among a plurality of pedal roller 4b and is connected these pedals 5.

As shown in Figure 3A, chain drive mechanism 10 comprises: rotating driving device 11; The drive sprocket 12 that is connected and under the propulsive effort effect of rotating driving device 11, is rotated with this rotating driving device 11; With this drive sprocket 12 in pairs and with the driven sprocket 15 of drive sprocket 12 rotations; Be erected between drive sprocket 12 and the driven sprocket 15 and carry out the circulation link chain 13 of circulating motion.Circulation link chain 13 is configured between drive sprocket 12 and driven sprocket 15 and the pedal chain 4, with the rotatablely moving and carry out circulating motion of drive sprocket 12 and driven sprocket 15, to pedal chain 4 applied thrusts.

And circulation link chain 13 has a plurality of chain link 13a and becomes the bearing pin 13b of the joint of adjacent link 13a.The pitch length of chain link 13a is identical with the pitch length of pedal chain link 4a.In addition, also can be as shown in figure 10, the pitch length of chain link 13a is the multiple (being twice among Figure 10) of the pitch length of pedal chain link 4a.

In addition, the carrying surface 13c of chain link 13a with carrying pedal roller 4b with carrying surface 13c on pedal roller 4b before and after pedal roller 4b ', 4b " pushing face 13d, the 13d of the front and back (among Fig. 3 about) that contact.The carrying surface 13c of chain link 13a forms the concave curved surface of copying pedal roller 4b side face shape.And chain link 13a and peripheral part carrying surface 13c opposition side when mobile (circulate be positioned at inboard peripheral part) are and drive sprocket 12 and driven sprocket 15 ingear convex curve surface shapes.That is to say that this chain link 13a integral body is the outward appearance of U font, under the state that has carried pedal roller 4b on the carrying surface 13c, form the shape of circuitous (avoiding) this pedal roller 4b along the pedal roller 4b side face on the carrying surface 13c.Be arranged on pushing face 13d, 13d on two top ends of U font to pedal roller 4b ', 4b before and after the pedal roller 4b on the carrying surface 13c " push.Therefore, each pedal roller 4b of pedal chain 4 is set at the pushing face 13d clamping on the chain link 13 of these chain link 13 front and back and remains on the carrying surface 13c under the state on the carrying surface 13c of a chain link 13a who is carried on circulation link chain 13.

As shown in Figure 3A, on each bearing pin 13b of circulation link chain 13, the chain roller 13e that can rotate freely is installed coaxially with each bearing pin 13b.On the circulating path of circulation link chain 13, be provided with circulation with guide rail 14, be used for supplying chain roller 13e to roll the circulating motion of boot cycle chain 13.This circulation has the path that is made of a pair of arc sections 14a, 14a and a pair of line part 14b, 14b with guide rail 14, between each arc sections 14a and each line part 14b, be folded with dip plane 14c, be used to prevent the vibration (with reference to Fig. 3 B and Figure 11) of circulation link chain 13 as connecting portion.

That is, as shown in figure 11, the height and position H with the horizontal surface of the line part 14b of guide rail 14 is set on the following position with circulation, and this position is that the tangent line L to the drive sprocket parallel with this horizontal H 12 adds the position that obtains behind the Offset δ of regulation.Be provided with dip plane 14c as the curve shape connecting portion in the end that the drive sprocket 12 of line part 14b imports sides.This dip plane 14c is tangent at reference position p1 shown in Figure 11 and line part 14b, on the other hand at dip plane lower end position p2 and arc sections 14a tangent (details can with reference to patent documentation 1).

But, as shown in Figure 3A, on the side arc sections 14a of circulation, be provided with and drive sprocket 12 double-type driven sprockets 15 with guide rail 14.This driven sprocket 15 is connected with the hand strap driving device 16 that drives handrail.That is to say, between driven sprocket 15 and hand strap driving device 16, be provided with the bindiny mechanism 16a of transmission from the propulsive effort of the axle 15b of driven sprocket 15.The propulsive effort of driven sprocket 15 passes to hand strap driving device 16 by the 16a of this bindiny mechanism.Not shown handrail by a plurality of roller clampings is driven by hand strap driving device 16.

Also can from the axle 15b acquisition propulsive effort of driven sprocket 15, utilize the big footpath roller 16b direct drive handrail of hand strap driving device 16 as shown in Figure 4.

Hand strap driving device 16 also can be connected with drive sprocket 12 sides as illustrated in fig. 9, drives handrail by the propulsive effort that transmits this drive sprocket 12.At this moment, but hand strap driving device 16 is also obtained the structure of propulsive effort from the axle of drive sprocket 12 as shown in Figure 9.Also can between drive sprocket 12 and hand strap driving device 16, bindiny mechanism be set, by this bindiny mechanism, from drive sprocket 12 to hand strap driving device 16 transmission of drive force.

As shown in Figure 4 and Figure 5, rotating driving device 11 comprises: driving motor 11a; By with the rotary torque of the driving motor 11a transmission mechanism 11b that belt constituted that transmits of each drive sprocket 12 to the left and right respectively; Be arranged on the center of each drive sprocket 12 and the rotary torque that transmission mechanism 11b transmits carried out the reductor 11c of amplification.Drg 11d is not mounted on the driving motor 11a, and is mounted on the input shaft 11e of reductor 11c.

As shown in Figure 6, chain roller 13e disposes in pairs with the state of clamping chain link 13a from the thickness direction both sides of chain link 13a (Fig. 6 about).The circulation of rolling for chain roller 13e is configured in the thickness direction both sides (among Fig. 6 about) of chain link 13a accordingly with the configuration of guide rail 14 and chain link 13a.As shown in Figure 6, when seeing chain roller 13e, side's chain roller 13e ' is configured to overlap on the projecting plane of pedal chain 4 along the working direction (direction vertical with paper of Fig. 6) of this chain roller 13e.The opposing party's chain roller 13e " be not configured in the position on the projecting plane of departing from pedal chain 4 overlappingly with the projecting plane of pedal chain 4.

Drive sprocket 12 and driven sprocket 15 have teeth groove, and this teeth groove has the shape that cooperates with the peripheral part that is convex curve surface shape of the chain link 13a of circulation link chain 13, promptly have the shape of the circuitous shape of the above-mentioned U font of copying chain link 13a.

As shown in Figure 7, its adjacent chain link 13a end of a plurality of chain link 13a that constitutes circulation link chain 13 is each other at the location overlap of bearing pin 13b, and connecting into to be the center rotation with bearing pin 13b.Each chain link 13a integral body becomes tortuous bonded assembly structure.The side of adjacent chain link 13a is connected with auxiliary chain link 13a ' overlay configuration and in the position of bearing pin 13b, and auxiliary chain link 13a ' forms the outer shape roughly the same with this chain link 13a (the circuitous shape of U font).Thus, can improve the durability of bearing pin 13b.Drive sprocket 12 and driven sprocket 15 are respectively by will tooth plate 12a, 15a are overlapping forms with the multi-disc (in this example being three) of chain link 13a and the roughly the same thickness of auxiliary chain link 13a '.Be formed with the teeth groove that engages with the peripheral part of chain link 13a (in this example also with the peripheral part of auxiliary chain link 13a ') on each tooth plate 12a, 15a.Alternately combine successively with the teeth groove of their cooresponding tooth plate 12a, 15a with the group of the overlapping auxiliary chain link 13a ' of chain link 13a and the chain link 13a that is adjacent.

The chain number that constitutes the chain link 13a of circulation link chain 13 is the different number of multiple with the stated number of configuration cycle of the pedal roller 4b that pedal chain 4 is engaged with pedal 5, promptly is the different number of multiple of the n when every n roller that disposes engages with pedal 5 among a plurality of pedal roller 4b with pedal chain 4.Particularly, in the example shown in Fig. 3 A, the roller of per three configurations of pedal roller 4b engages with pedal 5.The chain number of the chain link 13a of circulation link chain 13 is than 22 of 3 multiple more than 21 1.

Below the effect of this example of formation like this is narrated.

In Fig. 2 and Fig. 3, drive sprocket 12 be subjected to chain drive mechanism 10 rotating driving device 11 propulsive effort and rotate.Along with rotatablely moving of this drive sprocket 12, be wound between drive sprocket 12 and the driven sprocket 15 and be configured in up and down that the circulation link chain 13 between the pedal chain 4 carries out circulating motion.Like this, circulation link chain 13 being along with drive sprocket 12 and rotatablely moving of driven sprocket 15 and carry out circulating motion, thereby to pedal chain 4 applied thrusts.As shown in Figure 2, by to pedal chain 4 applied thrusts, move along pedal guide rail 3 with a plurality of pedals 5 of pedal chain 4 bonded assemblys.

Except the basic role with upper conveyor 1, the feedway 1 of this example also produces following effect.

At first, as mentioned above, the chain link 13a of circulation link chain 13 have between the bearing pin 13b of the left and right sides and the carrying surface 13c that carries pedal roller 4b with pedal roller 4b ', the 4b of the front and back of pedal roller 4b " the pushing face 13d that contacts.Adopt the structure of this circulation link chain 13, even when driving common pedal chain 4, apply propulsive effort while also can keep dark engagement.

That is, as shown in Figure 8, in this example, tooth matching angle α is less angle.If chain link 13a does not have such pushing face 13d, the tooth matching angle β that then meshes with carrying surface 13c is the limit.Circulate and with pedal chain 4 contacts, when separating at circulation link chain 13 if consider, bearing pin 13b ' at one end is under the state of pedal chain 4, the bearing pin 13b of the other end " serve as rotation benchmark situation about moving up and down with bearing pin 13b ', but the restriction geom ground of this tooth matching angle is determined.The bearing pin 13b of circulation link chain 13 is configured between the pedal roller 4b of pedal chain 4.Chain link 13a constitutes the shape of walking around pedal roller 4b.Thus, can under the state of keeping darker tooth matching angle α (littler angle [alpha]), apply propulsive effort.

In chain drive mechanism shown in Figure 3 10, circulation link chain 13 follows the chain roller 13e that ring is installed in the circulating path of guide rail 14 on the bearing pin 13b and guides.As mentioned above, this circulation forms the path with a pair of arc sections 14a, 14a and a pair of line part 14b, 14b with guide rail 14.Between each arc sections 14a and each line part 14b, be folded with dip plane 14c, be used to prevent the vibration of circulation link chain 13 as connecting portion.Thus, in the feedway 1 of this example, even be used for pedal chain 4, drive with common sprocket wheel under the situation of the circulation link chain 13 that saves with pedal chain 4 ingear long-chains at the chain that chain link is long, circulation link chain 13 and pedal chain 4 can not pulsed yet.

In addition, be provided with and the drive sprocket 12 double-type driven sprockets that rotate freely 15 at side's arc sections 14a of circulation with guide rail 14.Therefore, the synchronized movement of the circulation link chain 13 about can making.Utilization obtains the hand strap driving device 16 of propulsive effort from the axle 15b of this driven sprocket 15, and handrail is by a plurality of roller clampings and be driven.Therefore, handrail and pedal 5 can be driven linkedly.

On the other hand, in Fig. 4, utilize the big footpath roller 16b direct drive handrail that obtains the hand strap driving device 16 of propulsive effort from the axle 15b of driven sprocket 15.Therefore, handrail and pedal 5 can be driven linkedly.At this moment, Fig. 3 and general hand strap driving device shown in Figure 4 all can drive.

As shown in Figure 4 and Figure 5, rotating driving device 11 comprises: driving motor 11a; By with the rotary torque of the driving motor 11a transmission mechanism 11b that constitutes of the belt that transmits of each drive sprocket 12 to the left and right; Be arranged on the center of drive sprocket 12 and carry out the reductor 11c of amplification being delivered to rotary torque behind the transmission mechanism 11b.Therefore, it is less to be passed to the moment of torsion of reductor 11c from driving motor 11a.Thus, the mechanism from driving motor 11a to transmission mechanism 11b also comprises drg 11d, can reduce size.At this, as mentioned above,, thereby can use belt to transmission mechanism 11b owing to the moment of torsion that is passed to reductor 11c from driving motor 11a is less, can not mesh sound.And drg 11d is positioned at the downstream of transmission mechanism 11b (belt).Therefore, though transmission mechanism 11b (belt) generation problem and fly the ease, drive sprocket 12 also can stop under the effect of drg 11d.

As shown in Figure 6, the chain roller 13e of circulation link chain 13 disposes in pairs with the state of clamping chain link 13a from the thickness direction both sides of chain link 13a.And the circulation that supplies this chain roller 13e to roll is configured in the thickness direction both sides of chain link 13a accordingly with guide rail 14 and the configuration of double-type chain link 13a.Therefore, circulation link chain 13 follows ring with guide rail 14 and by the thickness direction both sides of double-type chain roller 13e guide support at chain link 13a.Can make circulation link chain 13 circulations thus with stable posture.In addition, when the working direction of this chain roller 13e was seen double-type chain roller 13e, side's chain roller 13e ' was configured to overlap on the projecting plane of pedal chain 4.The opposing party's chain roller 13e " be not configured in the position on the projecting plane of departing from pedal chain 4 overlappingly with the projecting plane of pedal chain 4.Can deepen the engagement of circulation link chain 13 and pedal chain 4 thus.

Drive sprocket 12 and driven sprocket 15 have teeth groove, and this teeth groove has the shape that engages with the peripheral part that is convex curve surface shape of the chain link 13a of circulation link chain 13.Do not use chain roller 13e to drive sprocket 12 and driven sprocket 15 with engagement circulation link chain 13.Thus, can utilize circulation to support a Zhou Bingneng with 14 pairs of chain rollers of guide rail 13e makes circulation link chain 13 with stable posture circulation.

In the chain drive mechanism 10, the adjacent chain link 13a end of circulation link chain 13 is each other at the location overlap of bearing pin 13b, and connecting into to be the center rotation with bearing pin 13b, and each chain link 13a integral body becomes tortuous bonded assembly structure.Drive sprocket 12 and driven sprocket 15 respectively by will with overlapping the forming of tooth plate 12a, 15a of the roughly the same thickness of chain link 13a.These tooth plates 12a, 15a alternately engage successively with the peripheral part of adjacent chain link 13a respectively.Thus, in Fig. 6, the width T of the part that circulation link chain 13 and pedal chain 4 are overlapping becomes the twice of thickness of slab t of chain link 13a and the thickness t of chain roller 13e ' sum (2t+t ').Therefore, but the overlapping part slimming of circulation link chain 13 and pedal chain 4.

In addition, on drive sprocket 12 and driven sprocket 15, respectively be provided with three tooth plate 12a, 15a.As shown in Figure 7, circulation link chain 13 has auxiliary chain link 13a ', this auxiliary chain link 13a ' with chain link 13a with the teeth groove engagement of tooth plate 12a, the 15a of drive sprocket 12 and driven sprocket 15.Therefore, the moment of flexure that cantilever causes can not take place at bearing pin 13b place.

The chain number a of the chain link 13a of circulation link chain 13 is than 22 of the multiple more than 21 1 of the configuration cycle 3 of the pedal roller 4b that engages with pedal 5.Therefore, whenever 13 one weeks of circulation of circulation link chain, the chain link 13a of the pedal roller 4b that carrying engages with pedal 5 will misplace.Therefore, load can not concentrated and be acted on specific chain link 13a, can prevent the localized wear of circulation link chain 13.

The feedway of this above example can obtain following effect.

At first, adopt this example, as shown in Figure 3, chain link 13a has pedal roller 4b ', the 4b with the front and back of pedal roller 4b " the pushing face 13d, the 13d that contact.Therefore, even when common pedal chain 4 is driven, also can apply propulsive effort keeping under the darker ingear situation.Thus, pedal roller 4b can not float, and need not to be provided for to prevent the mechanism of floating.Even be provided for preventing the mechanism of floating for safety, also can use light structure to get final product.

As shown in Figure 8, adopt this example, the bearing pin 13b of circulation link chain 13 is configured between each pedal roller 4b of pedal chain 4, can apply propulsive effort to pedal chain 4 when keeping darker tooth matching angle α.Thus, can further improve the effect that prevents above-mentioned come-up.

Adopt this example, as shown in Figure 3, in chain drive mechanism 10, circulation forms the path with a pair of arc sections 14a, 14a and a pair of line part 14b, 14b with guide rail 14, between each arc sections 14a and each line part 14b, be folded with dip plane 14c, be used to prevent the vibration of circulation link chain as connecting portion.Therefore, can eliminate the pulsation of circulation link chain 13, thus, the not pulsation of driven pedal chain 4 can improve the sensation of passenger on pedal 5.

Adopt this example, be provided with and the drive sprocket 12 double-type driven sprockets that rotate freely 15 on side's arc sections 14a of circulation with guide rail 14, moving of the circulation link chain 13 about making is synchronous.Therefore, about the motion of pedal chain 4 can not misplace and become unsafe state, can keep safety.

And, adopt this example, in Fig. 4, from driven sprocket 15 the axle 15b obtain propulsive effort, utilize the big footpath roller 16b direct drive handrail of hand strap driving device 16.Therefore, handrail and pedal 5 interlocks, the action that handrail can not take place is slower than the action of pedal 5 and the phenomenon that causes the passenger to fall down easily.Therefore, can keep safety.In addition, adopt this example, Fig. 3 and general hand strap driving device shown in Figure 4 all can drive, and have commonality.

Adopt this example, as shown in Figure 4, in rotating driving device 11, the reductor 11c that the rotary torque after transmitting is carried out amplification is arranged on the center of drive sprocket 12.Therefore, be passed to reductor 11c moment of torsion little, the mechanism size from driving motor 11a to transmission mechanism 11b is also less.Thereby as shown in Figure 5, rotating driving device 11 can be configured in the pedal 5 ' of the passage side that moves ahead and the pedal 5 of return path side " narrow range in, make the structure miniaturization easily.In addition, as mentioned above, the moment of torsion that is passed to reductor 11c is little, can use belt to transmission mechanism 11b.Thus, can not mesh sound, can keep quite.And drg 11d is positioned at the downstream of transmission mechanism 11b (belt).Therefore, though transmission mechanism 11b (belt) generation problem and fly the ease, drive sprocket 12 also can stop under the effect of drg 11d.Can keep safety thus.

Adopt this example, as shown in Figure 6, chain roller 13e disposes in pairs with the state of clamping chain link 13a from the thickness direction both sides of chain link 13a, and circulation link chain 13 circulates with stable posture with guide rail 14 along circulation.Therefore, even effect has the power of the direction outside the expections such as excessive load or earthquake, circulation link chain 13 can not change posture yet.Thus, can keep safety.In addition, when the working direction of this chain roller 13e was seen double-type chain roller 13e, side's chain roller 13e ' was configured to overlap on the projecting plane of pedal chain 4.The opposing party's chain roller 13e " be not configured in the position on the projecting plane of departing from pedal chain 4 overlappingly with the projecting plane of pedal chain 4.Can deepen the engagement of circulation link chain 13 and pedal chain 4 thus, thereby not need to be provided for to prevent the mechanism of floating.Even be provided for preventing the mechanism of floating for safety, also can use light structure to get final product.

Adopt this example, do not use chain roller 13e with engagement circulation link chain 13 drive sprocket 12 and driven sprocket 15.And, utilize circulation to support a week and circulation link chain 13 is circulated with stable posture with 14 pairs of chain rollers of guide rail 13e.Therefore, even effect has the power of the direction outside the expections such as excessive load or earthquake, circulation link chain 13 can not change posture yet.Thus, can keep safety.

Adopt this example, drive sprocket 12 and driven sprocket 15 by will with overlapping the forming of tooth plate 12a, 15a of the roughly the same thickness of chain link 13a.But and the lap slimming of chain link 13a, roughly the same with the width of pushing face 13d.Therefore can save the space.

Adopt this example, drive sprocket 12 and driven sprocket 15 are respectively by with three overlapping forming of tooth plate 12a, 15a.And circulation link chain 13 has auxiliary chain link 13a ', and this auxiliary chain link 13a ' engages with three tooth plate 12a, 15a of drive sprocket 12 and driven sprocket 15 with two adjacent chain link 13a.Therefore, the moment of flexure that cantilever causes can not take place at bearing pin 13b place.Can improve the durability of circulation link chain 13 thus.

Adopt this example, whenever 13 one weeks of circulation of circulation link chain, the chain link 13a of the pedal roller 4b that carrying engages with pedal 5 will misplace, and load can not concentrated and be acted on specific chain link 13a.Therefore, can prevent the localized wear of circulation link chain 13.Can improve the durability of chain drive 10 thus.

In this example, for example as shown in Figure 9, also can replace above-mentioned rotating driving device 11, adopt rotating driving device 11 ', this rotating driving device 11 ' comprising: the driving motor 11a of band brake 11d; Be configured in central authorities and to the reductor 11c ' of the rotary torque amplification of driving motor 11a; Transmission mechanism 11b ' with drive sprocket 12 transmission to the left and right of the difference of the rotary torque after the amplification.

At this moment, with the structure that the transmission mechanism 11b ' of drive sprocket 12 transmission to the left and right need be firm respectively of the rotary torque after the amplification.Therefore, increase from the mechanism size of outgoing side till the transmission mechanism 11b ' of the reductor 11c ' that is configured in central authorities, it is harsh that the restriction in space becomes.Yet, can reduce by a reductor 11c '.In addition,, make the structure that the propulsive effort of drive sprocket 12 is passed to hand strap driving device 16, can save driven sprocket 15 by hand strap driving device 16 is connected with drive sprocket 12.Therefore can become cheap structure.And, by making hand strap driving device 16 being directly installed on structure on 12 of the drive sprockets, the unnecessary load that is used to drive handrail can not act on circulation link chain 13.Therefore can improve the durability of circulation link chain 13.

(second example)

Below with reference to Figure 12 and Figure 13 the present invention's second example is described.

The difference of the Figure 12 and second example shown in Figure 13 is, the position that is provided with chain drive mechanism 20 on the pedal guide rail 3 that becomes pedal chain 21 paths is formed with the curve 3 ' that curves with bigger regulation radius of curvature, and circulation also is and its corresponding shape with guide rail 24.Other formation and action effect and above-mentioned first example are basic identical.In Figure 12 and Figure 13, to first example identical part mark identical symbol and the detailed extremely shown in Figure 11 with Fig. 2.

At first the summary of the feedway of this example is described with reference to Figure 12.

As shown in figure 12, pedal chain 21 has a plurality of pedal chain link 21a and a plurality of pedal roller 21b.Circulation link chain 13 is configured between drive sprocket 12 and driven sprocket 15 and the pedal chain 21, with the rotatablely moving and carry out circulating motion of drive sprocket 12 and driven sprocket 15, to pedal chain 21 applied thrusts.

Identical with first example, circulation link chain 13 has a plurality of chain link 13a and becomes the bearing pin 13b of adjacent link 13a joint.The pitch length of chain link 13a is identical with the pitch length of pedal chain link 21a.Pushing face 13d, the 13d of carrying surface 13c that chain link 13a has a carrying pedal roller 21b and the front and back that contact with the pedal roller 21b of front and back of pedal roller 21b on the carrying surface 13c.The carrying surface 13c of chain link 13a forms the concave curve surface shape of copying pedal roller 21b side face shape.And be and drive sprocket 12 and driven sprocket 15 ingear convex curve surface shapes with the peripheral part of carrying surface 13c opposition side.This chain link 13a integral body is the U font, under the state that has carried pedal roller 21b on the carrying surface 13c, forms the shape of walking around this pedal roller 21b.

Yet, in this example, becoming the pedal guide rail 3 in pedal chain 21 paths, its side (downside among Figure 12) with the position that circulation is set up in parallel with guide rail 24 makes the curve 3 ' that curves with big radius of curvature.In addition, circulation comprises with guide rail 24: a pair of arc sections 24a; A line part 24b; Have along a big footpath curvature 24b ' of portion of the shape of the curve 3 ' of pedal guide rail 3.Between each arc sections 24a and line part 24b and each arc sections 24a and the big footpath curvature 24b ' of portion be folded with dip plane 24c respectively as connecting portion, be used to prevent the vibration (with reference to Figure 13) of circulation link chain 13.

That is, the circulation of circulation link chain 13 channeling conducts is used in the guide rail 24, the shape of arc sections 24a is identical with the shape of the arc sections 14a of first example.On the contrary, replace the line part 14b of return path (under among Fig. 3) side of first example, be formed with along the big footpath 24b ' of curvature portion of the curve 3 ' of pedal guide rail 3.Be provided with the dip plane 24c that is used to prevent circulation link chain 13 vibrations in drive sprocket 12 and circulation with the connecting portion of the big footpath 24b ' of curvature portion of guide rail 24 and the connecting portion of driven sprocket 15 and the big footpath curvature 24b ' of portion (perhaps being arc sections 24a and the big directly connecting portion of the curvature 24b ' of portion) when having omitted driven sprocket 15.That shown in Figure 13 is the dip plane 24c that is folded between arc sections 24a and the big footpath curvature 24b ' of portion.Be folded in dip plane 24c between arc sections 24a and the line part 24b also roughly with shown in Figure 13 identical, but detail shape is slightly different.Figure 20 that No. 2005-047182, special hope has put down in writing the structure that has with this dip plane 24c same function, and the shape of dip plane 24c is roughly the same with it.

Below the effect of this example of formation like this is narrated.

At first, in chain drive mechanism shown in Figure 12 20, from curve 3 ' (upside of Figure 12) tensioning to the inside of pedal guide rail 3, pedal chain 21 is urged on circulation link chain 13 pedal chain 21 under the effect of its tension force F.

At this moment, with between each arc sections 24a of guide rail 24 and the line part 24b and each arc sections 24a and greatly directly be folded with dip plane 24c between the curvature 24b ' of portion respectively, be used to prevent the vibration of circulation link chain 13 in circulation as connecting portion.Therefore, eliminate the pulsation of circulation link chain 13, thereby can eliminate the pulsation of driven pedal chain 21.This is used as pedal chain 21, also identical when being driven by the few drive sprocket 12 of the number of teeth with the circulation link chain 13 of its ingear long-chain joint at the load-transfer device chain with the long-chain joint.

The feedway of this example can obtain following effect.

At first, as shown in figure 10, the side at the position that is set up in parallel with guide rail 24 with circulation of the pedal guide rail 3 that becomes pedal chain 21 paths is formed with the curve 3 ' that curves with bigger regulation radius of curvature.Therefore, pedal chain 21 is pressed against circulation link chain 13 sides at the curve 3 ' of this pedal guide rail 3 by tension force.Thus, the pressing mechanism that is used to suppress pedal chain 21 come-ups does not need, and maybe can make light structure.

Circulation comprises with guide rail 24: a pair of arc sections 24a; A line part 24b; Have along a big footpath curvature 24b ' of portion of the shape of pedal guide rail 3 curves 3 '.Dip plane 24c being folded with respectively between each arc sections 24a and the line part 24b and between each arc sections 24a and the big footpath curvature 24b ' of portion as connecting portion is used to prevent the vibration of circulation link chain 13.Therefore, can eliminate the pulsation of circulation link chain 13.Thus, the not pulsation of driven pedal chain 21 can improve the sensation of passenger on pedal 5.

Therefore identical with first example, chain link 13a has the pushing face 13d that contacts with the pedal roller 21b of front and back, even when common pedal chain 21 is driven, also can apply propulsive effort keeping under the darker ingear situation.

(the 3rd example)

Below with reference to Figure 14 to Figure 16 the present invention's the 3rd example is described.

In the 3rd example, as shown in figure 14, move the stretching device 31 of regulating circulation link chain 13 tension force with drive sprocket 12 directions approaching, that separate thereby added driven sprocket 15 courts that make chain drive mechanism 10.In the 3rd example, as shown in figure 15, in the teeth groove that the tooth plate 12a (15a) of the drive sprocket 12 (with driven sprocket 15) that engages with circulation link chain 13 chain link 13a upward forms, be provided with and be convenient to the abundant interval δ p that chain link 13a breaks away from.And the position that constitutes the intersection point of slot form between each tooth plate 12a (15a) is provided with the common hole 34 that connects along thickness direction, and the damper element 35 of one is embedded in this common hole 34.In the 3rd example, move with pedal chain 4 and the starting position and the end position in the zone (thrust delivery areas) of applied thrust at the circulation link chain 13 of chain drive mechanism 10, the load that acts on pedal chain 4 is shared supports (the following joint that such position is called pedal guide rail 3 and circulation link chain 13) by pedal guide rail 3 and circulation link chain 13 both sides.Be provided with auxiliary guide rail 36 on the pedal guide rail 3 of the joint that is positioned at this pedal guide rail 3 and circulation link chain 13, this auxiliary guide rail 36 contacts with the pedal chain link 4a of pedal chain 4 a part of load of pedal chain 4 is supported.And at circulation link chain 13 in the thrust delivery areas that pedal chain 4 moves, the pedal roller 4b of pedal chain 4 leaves pedal guide rail 3 and does not roll on pedal guide rail 3.Other formation is identical with above-mentioned first example with action effect.Below, the part to identical with first example marks identical symbol and detailed in the drawings, and only the characteristic to this example describes.

As shown in figure 14, stretching device 31 has brace table 32, and this brace table 32 supports to the driven sprocket 15 of chain drive mechanism 10 can rotate freely.This brace table 32 is connected with support 2 ' on being fixed on works 2 by tensioning spring 33 elastic bodys such as grade.Brace table 32 its towards the moving of Width by not shown guide restriction, under elastomeric effects such as tensioning spring 33, only can be to move to the moving direction of circulation link chain 13 relative to drive sprocket 12 directions approaching, that separate.Follow the circulation guide rail 14 of endless path to circulation link chain 13 channeling conducts, the part of its driven sprocket 15 sides becomes slidably movable guiding rail 14 ' of relative other parts.This movable guiding rail 14 ' supports with 15 supported 32 of driven sprockets.

When causing the overtension of circulation link chain 13 because of the load that for example acts on circulation link chain 13, or use when producing tension force that elongation causes circulation link chain 13 and reducing etc. because of long-time, this stretching device 31 utilizes the balance with the elastomeric application of force such as tensioning spring 33 that brace table 32 is moved.By making the driven sprocket 15 that is supported by this brace table 32 to moving the tension force of scalable circulation link chain 13 with drive sprocket 12 directions approaching, that separate.At this moment, because circulation uses the movable guiding rail 14 ' of guide rail 14 to support with 15 supported 32 of driven sprockets, therefore move the relative position relation of keeping with driven sprocket 15 with driven sprocket 15.At this moment, movable guiding rail 14 ' only circulates relatively and slides with the other parts of guide rail 14, does not separate.Therefore, circulation keeps continuum of states with the rolling surface of guide rail 14.In addition, the circulation oblique formation of boundary member of movable guiding rail 14 ' with the rolling surface of other parts of guide rail 14, the chain roller 13e of circulation link chain 13 can roll smoothly at this boundary member.

When chain drive mechanism 10 is the structure of having omitted driven sprocket 15, stretching device 31 only make circulation with the movable guiding rail 14 ' of guide rail 14 to moving with guide rail 14 other parts direction approaching, that separate with the circulation that fixedly installs, can realize same function thus.At this moment, stretching device 31 does not need to make driven sprocket 15 is supported to rotation structure freely.Therefore, for example can utilize tensioning spring 33 directly to support movable guiding rail 14 ' and wait the tension force of reasonably regulating circulation link chain 13 with extremely simple structure.

As mentioned above, the drive sprocket 12 of chain drive mechanism 10 and driven sprocket 15 will be by being formed with overlapping the forming of three tooth plate 12a (15a) of the teeth groove that engages with circulation link chain 13 chain link 13a.The teeth groove of each tooth plate 12a (15a) and the pitch of circulation link chain 13 are upwards arranged in the week of drive sprocket 12 and driven sprocket 15 accordingly and are formed.The teeth groove of each tooth plate 12a (15a) is and circulation link chain 13 chain link 13a corresponding shape basically.As shown in figure 15, the pitch direction of circulation link chain 13 is provided with abundant interval δ p relatively.Be arranged on abundant interval δ p on this each teeth groove and be in order to make the circulation link chain 13 chain link 13a that are fastened in the teeth groove break away from and be provided with from teeth groove easily in the position that breaks away from from teeth groove, it is set at by experiment and waits the optimum value of being tried to achieve.

As shown in figure 15, on drive sprocket 12 and driven sprocket 15, the position of intersecting point that slot form intersects between tooth plate 12a (15a) is provided with along the thickness direction of each tooth plate 12a (15a) and connects and the common hole 34 of formation continuously.In this common hole 34, just on all tooth plate 12a (15a), be embedded with the damper element 35 of one.When the chain link 13a of circulation link chain 13 engaged with teeth groove, this damper element 35 was used to make this engagement along sliding.

As mentioned above, the pedal roller 4b of pedal chain 4 is carried on the carrying surface 13c of chain link 13a, the circulation link chain 13 of chain drive mechanism 10 moves with pedal chain 4 and to these pedal chain 4 applied thrusts.From this circulation link chain 13 to pedal chain 4 transmit the zone of thrusts starting position and end position, be pedal guide rail 3 and the joint of circulation link chain 13, the load that acts on pedal chain 4 is shared support by pedal guide rail 3 and circulation link chain 13 both sides.

Shared in such load that acts on pedal chain 4 near the joint of the pedal guide rail 3 of support and circulation link chain 13, promptly clip the peripheral region of joint (starting position of thrust delivery areas and end position) and the regulation before and after it, on pedal guide rail 3, be provided with the auxiliary guide rail 36 that for example is made of resin material etc. as shown in figure 16, this auxiliary guide rail 36 contacts with a part of load to pedal chain 4 with the pedal chain link 4a of pedal chain 4 and supports.That is to say that near the joint of pedal guide rail 3 and circulation link chain 13, the pedal chain link 4a of pedal chain 4 slides on the auxiliary guide rail 36 that is arranged at pedal guide rail 3.The a part of load that acts on pedal chain 4 is supported by this auxiliary guide rail 36.As shown in figure 16, at circulation link chain 13 in the thrust delivery areas that pedal chain 4 moves, for example by between the rolling surface 3a of pedal guide rail 3 and pedal roller 4b, gap etc. being set, making the pedal roller 4b of pedal chain 4 leave pedal guide rail 3 and on pedal guide rail 3, do not roll.

Example shown in Figure 6 and example shown in Figure 16 all are that the side's chain roller 13e ' among the double-type chain roller 13e is not configured on the position of departing from the projecting plane overlappingly with the projecting plane of pedal chain 4.In the example of Fig. 6, this chain roller 13e ' is configured in outside the projecting plane partially interiorly, and is that inclined to one side other places is configured in outside the projecting plane in the example of Figure 16.This design modification can be carried out arbitrarily in the scope that the oneself holds by the designer.

Below the effect of this example of formation like this is narrated.

At first, in this example, as shown in figure 14, be provided with stretching device 31 on chain drive mechanism 10, the tension force of circulation link chain 13 obtains automatically regulating, thereby the lax place that is not concentrated in of circulation link chain 13.Therefore, even circulation link chain 13 also can be kept sound recurrent state because of the aging grade of use all the year round causes elongation.Even when patronage is numerous etc., under the interim situation about increasing of circulation link chain 13 load transmitted, also can prevent circulation link chain 13 paratonias to increase from pedal chain 4.Therefore, can suppress infringement to circulation link chain 13.

When the tension force that utilizes 31 pairs of circulation link chains 13 of stretching device was regulated, circulation was moved with driven sprocket 15 linkedly with the movable guiding rail 14 ' of guide rail 14.Therefore, movable guiding rail 14 ' is kept with the relative position relation of driven sprocket 15.Up to circulation link chain 13 and driven sprocket 15 engagements, this moves to be recycled all the time with guide rail 14 and reasonably guides.Therefore, can not damage the so above-mentioned effect of pulsation of utilizing circulation to suppress circulation link chain 13 with guide rail 14.

When chain drive mechanism 10 had omitted driven sprocket 15, stretching device 31 becomes only made the movable guiding rail 14 ' that circulates with guide rail 14 move so simple structure to direction approaching with other parts, that separate.Therefore, can reasonably regulate the tension force of circulation link chain 13.

As shown in figure 15, in the teeth groove of drive sprocket 12 and driven sprocket 15, be provided with the abundant interval δ p of being convenient to circulation link chain 13 chain link 13a disengaging.Therefore, can prevent as circulation link chain 13 embed cause in drive sprockets 12 and the driven sprocket 15 these drive sprockets 12 and driven sprocket 15 rotatablely move and the circulating motion of circulation link chain 13 problem being hindered takes place.

On the overlapping tooth plate 12a (15a) of drive sprocket 12 and driven sprocket 15, be provided with coaxial common hole 34, in this common hole 34, be embedded with damper element 35.Therefore, can do structure simply, cheap, and the engagement when the chain link 13a of circulation link chain 13 is engaged with the teeth groove of drive sprocket 12 and driven sprocket 15 be along sliding.

In the joint of pedal guide rail 3 with circulation link chain 13, the load that acts on pedal chain 4 is shared support by pedal guide rail 3 and circulation link chain 13 both sides.Therefore, the pedal roller 4b of pedal chain 4 can shift between pedal guide rail 3 and circulation link chain 13 smoothly.Shared by pedal guide rail 3 and circulation link chain 13 both sides in such load that acts on pedal chain 4 near the joint of the pedal guide rail 3 of support and circulation link chain 13, as shown in figure 16, on pedal guide rail 3, be provided with the auxiliary guide rail 36 that constitutes by resin material etc.The pedal chain link 4a of pedal chain 4 slides on this auxiliary guide rail 36, and a part of load of pedal chain 4 is supported.Therefore, irrelevant with the load size that acts on pedal chain 4, can reasonably realize the transfer of the more suitable cunning of pedal roller 4b.

As shown in figure 16, circulation link chain 13 is in the thrust delivery areas that pedal chain 4 moves, and the pedal roller 4b of pedal chain 4 leaves pedal guide rail 3 and do not roll on pedal guide rail 3.Therefore, circulation link chain 13 is stably supported and carry the pedal roller 4b of pedal chain 4.

The feedway of this above example can obtain following effect.

Adopt this example, to chain drive mechanism 10 additional stretching devices 31, so that the tension force of circulation link chain 13 is automatically regulated.Thus, can keep the sound recurrent state of circulation link chain 13, improve the durability of device.

When the tension force that utilizes 31 pairs of circulation link chains 13 of stretching device is regulated, circulation with the movable guiding rail 14 ' of guide rail 14 with driven sprocket 15 to moving with drive sprocket 12 directions approaching, that separate.Therefore, can not damage and utilize circulation to suppress the such effect of circulation link chain 13 pulsation with guide rail 14, but the holding device peace and quiet.

In the teeth groove of drive sprocket 12 and driven sprocket 15, be provided with abundant interval δ p, circulation link chain 13 is not embedded in drive sprocket 12 and the driven sprocket 15.Thus, can keep the suitable sliding recurrent state of circulation link chain 13, improve the durability of device.

On the overlapping tooth plate 12a (15a) of drive sprocket 12 and driven sprocket 15, be provided with common hole 34, in this common hole 34, be embedded with damper element 35, thereby the chain link 13a of circulation link chain 13 and the teeth groove of drive sprocket 12 and driven sprocket 15 are meshed smoothly.Can reduce the vibrating noise of device thus, improve quietness.

In the joint of pedal guide rail 3 with circulation link chain 13, the load that acts on pedal chain 4 is shared support by pedal guide rail 3 and circulation link chain 13 both sides, and therefore, pedal roller 4b can shift between pedal guide rail 3 and circulation link chain 13 smoothly.Thus, can not apply excessive load, improve durability pedal roller 4b.

Near the joint of pedal guide rail 3 and circulation link chain 13, on pedal guide rail 3, be provided with the auxiliary guide rail 36 that constitutes by resin material etc., the pedal chain link 4a of pedal chain 4 slides on this auxiliary guide rail 36.Thus, irrelevant with the load size that acts on pedal chain 4, can reasonably realize the transfer of the more suitable cunning of pedal roller 4b.Thereby can further reduce the load that acts on the pedal roller 4, improve durability.

Circulation link chain 13 is in the thrust delivery areas that pedal chain 4 moves, and the pedal roller 4b of pedal chain 4 leaves pedal guide rail 3 and do not roll on pedal guide rail 3, is transferred under the state by circulation link chain 13 stable support.Thus, can not act on unnecessary power such as friction to pedal roller 4b, can improve durability.

(the 4th example)

Below with reference to Figure 17 to Figure 19 the present invention's the 4th example is described.

Shown in Figure 17 and Figure 18 A, in the 4th example, the auxiliary chain link 40b of circulation link chain 40 forms rectangular simple shape.As shown in figure 19, drive sprocket 12 and driven sprocket 15 are by two overlapping forming of tooth plate 12a, 12a ' that only engage with chain link 40a, the 40a ' of circulation link chain 40.In the 4th example, shown in Figure 18 B, at the pedal roller 4b on the carrying surface of chain link 40a, 40a ' and clip between pushing face 40c, the 40c ' of front and back chain link 40a, 40a ' of this pedal roller 4b and be provided with abundant interval (gap) δ p '.As shown in figure 17, in the 4th example, pushing face 40c, the 40c ' of chain link 40a, 40a ' form by other parts 40c ' ' being utilized pin 40d rivet on the end that is combined in the sheet material that constitutes chain link 40a, 40a '.Other formation is identical with above-mentioned first example with action effect.Below, the part to identical with first example marks identical symbol and detailed in the drawings, and only the characteristic to this example describes.

In this example, as shown in figure 17, at circulation link chain 40 with chain drive mechanism, have with adjacent chain link 40a, 40a ' in side's chain link 40a overlappingly side by side the configuration auxiliary chain link 40b.Should assist shape and the chain link 40a of chain link 40b slightly different, shown in Figure 18 A, form the simple rectangular shape behind the cavetto of rectangular end.These its two ends of rectangular auxiliary chain link 40b are connected with the end of chain link 40a, 40a ' is coaxial in the position of bearing pin 41, and the moment of flexure that causes because of cantilever can not take place at bearing pin 41 places, can improve durability.

As shown in figure 19, drive sprocket 12 (with driven sprocket 15) respectively by will with overlapping the forming of two tooth plate 12a, 12a ' (15a, 15a ') of chain link 40a, the roughly the same thickness of 40a '.Be formed with and chain link 40a the teeth groove of 40a ' peripheral part engaging on each tooth plate 12a, 12a ' (15a, 15a ').Adjacent chain link 40a, the teeth groove of the side of 40a ' and the opposing party and their pairing tooth plate 12a, 12a ' (15a, 15a ') be alternately engaging successively.That is to say, in this example, go up the tooth plate that does not have setting to engage at drive sprocket 12 (with driven sprocket 15) with auxiliary chain link 40b.Therefore, but simplified structure.

In this example, shown in Figure 18 A, chain link 40a, 40a ' integral body also is the outward appearance of U font, pushes the pedal roller 4b of the pedal roller 4b front and back on the carrying surface with pushing face 40c, 40c ' on the both sides end that is located at the U font.Each pedal roller 4b is arranged on (40c) clamping and remaining on the carrying surface of pushing face 40c ' on the chain link 40a before and after this chain link 40a (40a ') (40a ') under the state on the carrying surface that is carried on a chain link 40a (40a ').But, in this example, shown in Figure 18 B, to by these pushings face 40c (40c ') each other the clamping to pedal roller 4b be provided with abundant interval (gap) δ p '.

That is, the pitch between adjacent pedal roller 4b is made as P, the interval between the carrying surface of then adjacent chain link 40a, 40a ' equates with pitch P.Bigger slightly than the radius r of this pedal roller 4b from the pedal roller 4b center that is carried on this carrying surface to the distance of a pair of pushing face 40c, the 40c ' that clip this pedal roller 4b.At the pedal roller 4b on the carrying surface of chain link 40a, 40a ' and clip between pushing face 40c, the 40c ' of front and back chain link 40a, 40a ' of this pedal roller 4b and be provided with abundant interval (gap) δ p '.In Figure 18 B, for the ease of understanding, δ p ' amplifies expression than actual size also bigly with abundant interval (gap).

Pushing face 40c, the 40c ' of chain link 40a, 40a ' increased thickness in the thickness of slab direction of chain link 40a, 40a ', with than with the also big area of the cooresponding area of the thickness of slab of chain link 40a, 40a ' and can push pedal roller 4b effectively.In this example, use the other parts 40c that separates with the sheet material that constitutes chain link 40a, 40a ' " such pushing face 40c, the 40c ' of formation.That is, as shown in figure 17, in the sheet material end that constitutes chain link 40a, 40a ', from the other parts 40c of this sheet material ground configuration of thickness of slab direction sandwich of this sheet material ".By utilizing pin 40d with these sheet materials and parts 40c in addition " riveted joint is fastening and integrated, forms pushing face 40c, 40c ' in the end of chain link 40a, 40a '.

As the method that forms pushing face 40c, 40c ', except utilizing pin 40d with other parts 40c " the method that engages of riveted joint, also can adopt such as with welding manner with other parts 40c " be combined in the method on the sheet material end that constitutes chain link 40a, 40a '.In addition, also can form pushing face 40c, 40c ' in the end of chain link 40a, 40a ' by the sheet material end Bending Processing or the forging bending machining that will constitute chain link 40a, 40a '.

Below the effect of this example of formation like this is narrated.

At first, in this example, as shown in figure 17, chain link 40a and auxiliary chain link 40b are with bearing pin 41 parallel maintenances.Thus, bearing pin 41 is not acted on moment of flexure.Shown in Figure 18 A, make simple rectangular shape by assisting chain link 40b with oblong end cavetto, therefore make easily.And, can guarantee enough intensity by assisting chain link 40b to make simple shape.

As shown in figure 19, make auxiliary chain link 40b not with the structure of tooth plate 12a, 12a ' (15a, the 15a ') engaging of drive sprocket 12 (with driven sprocket 15).Thus, tooth plate 12a, 12a ' (15a, 15a ') the sheet number of drive sprocket 12 (with driven sprocket 15) can be reduced to two.The formation of drive sprocket 12 (with driven sprocket 15) also obtains simplifying.

Shown in Figure 18 B, to each other the clamping of pedal roller 4b being provided with abundant interval (gap) δ p ' by pushing face 40c, 40c '.Thus, can prevent from effectively to enter circulation link chain 40 through the tension force that pedal chain 4 is propagated.Therefore, circulation link chain 40 can not be subjected to the influence of pedal chain 4 tension force, can only transmit thrust reliably.

As shown in figure 17, pushing face 40c, the 40c ' of chain link 40a, 40a ' have increased thickness in the thickness of slab direction of chain link 40a, 40a '.Thus, can push pedal roller 4b effectively, reduce surface pressure pedal roller 4b with bigger area.Such pushing face 40c, 40c ', fastening with other parts 40c by the riveted joint that utilizes pin 40d " be combined on the sheet material end that constitutes chain link 40a, 40a ' and form.Thus, can form pushing face 40c, 40c ' under the situation of desirable strength simply keeping.

The feedway of this above example can obtain following effect.

At first, adopt this example, chain link 40a and auxiliary chain link 40b thus, do not act on moment of flexure to bearing pin 41 with bearing pin 41 parallel maintenances.Thereby can improve durability.In addition, auxiliary chain link 40b is simple shape, therefore makes easily, and can guarantee enough intensity.Therefore but cost-cutting improves durability.

Can reduce tooth plate 12a, the 15a sheet number of drive sprocket 12 and driven sprocket 15.Thus, also can simplify the formation of drive sprocket 12 and driven sprocket 15.But thereby cost-cutting.

It is provided with abundant interval (gap) δ p ' to the clamping of pedal roller 4b each other to pushing face 40c, 40c ' by chain link 40a circulation link chain 40.Thus, circulation link chain 40 can not be subjected to the influence of pedal chain 4 tension force, can only transmit thrust reliably, can not transmit unnecessary power, can improve durability.

The bigger pushing face 40c of chain link 40a can reduce the surface pressure to pedal roller 4b.Thus, can improve the durability of pedal roller 4b.Such pushing face 40c, fastening with other parts 40c by the riveted joint that utilizes pin 40d " be combined on the sheet material end that constitutes chain link 40a, 40a ' and form.Thus, formation simply under the situation of desirable strength can kept.Therefore cost-cutting under the situation of durability can kept.

The object lesson that more than will use feedway of the present invention is that example specifies with first to fourth example, but technical scope of the present invention is not limited to the technology item that disclosed in the explanation of above each example, also comprise content, variation, the application examples derived easily by general technology general knowledge based on above announcement.

Claims (29)

1. a feedway is characterized in that, comprising:

The pedal guide rail;

The a plurality of pedals that move along described pedal guide rail;

Pedal chain, this pedal chain is by constituting at a plurality of pedal rollers that roll on the described pedal guide rail and a plurality of pedal chain links of being configured between each pedal roller, the pedal roller of continuous stated number engages successively with each pedal in described a plurality of pedal roller, is thus connected described a plurality of pedal; And

Chain drive mechanism, it has rotating driving device, at the drive sprocket that is rotated under the propulsive effort effect of this rotating driving device, be configured between described drive sprocket and the described pedal chain and rotatablely moving and carry out circulating motion with described drive sprocket with circulation link chain to described pedal chain applied thrust

The bearing pin of joint that the circulation link chain of described chain drive mechanism has the identical or a plurality of chain links of its multiple of the pitch length of pitch length and described pedal chain link and becomes the chain link of described circulation link chain,

Be provided with on each chain link of described circulation link chain the carrying described pedal roller pedal roller carrying surface and with described pedal roller carrying surface on the pedal roller before and after the contacted pushing face of pedal roller.

2. feedway as claimed in claim 1, it is characterized in that, its described pedal roller carrying surface of the chain link of described circulation link chain forms the concave curved surface of copying described pedal roller side face shape, and forms and described drive sprocket ingear convex curve surface shape with the peripheral part of described pedal roller carrying surface opposition side.

3. feedway as claimed in claim 1 is characterized in that, the quantity of the chain link of described circulation link chain is different from the integral multiple of described stated number.

4. feedway as claimed in claim 1 is characterized in that, described circulation link chain has and the coaxial mounted chain roller that rotates freely of described bearing pin,

On the circulating path of described circulation link chain, be provided with circulation and use guide rail, be used for supplying described chain roller to roll and guide the circulating motion of described circulation link chain.

5. feedway as claimed in claim 4 is characterized in that, other parts are removable relatively with its part of guide rail in described circulation,

Be provided with stretching device, thereby it makes described circulation move the tension force of regulating described circulation link chain with the part of guide rail to direction approaching with other parts, that separate.

6. feedway as claimed in claim 1 is characterized in that, also comprises hand strap driving device, and it is connected with the drive sprocket of described chain drive mechanism, and the propulsive effort by the described drive sprocket that is delivered to drives handrail.

7. feedway as claimed in claim 4 is characterized in that described circulation has a pair of arc sections and line part with guide rail, is folded with the dip plane as connecting portion between each arc sections and line part, is used to prevent the vibration of described circulation link chain.

8. feedway as claimed in claim 4 is characterized in that, the curve that a side at the position that described pedal guide rail itself and the described circulation that becomes described pedal chain path is set up in parallel with guide rail curves with bigger regulation radius of curvature,

Described circulation has a pair of arc sections, a line part with guide rail and has along a curvature portion of the shape of the curve of described pedal guide rail, dip plane being folded with respectively between each arc sections and the line part and between each arc sections and the curvature portion as connecting portion is used to prevent the vibration of described circulation link chain.

9. feedway as claimed in claim 7, it is characterized in that, described circulation with side's arc sections of guide rail be provided with double-type with described drive sprocket, with the chain link ingear driven sprocket of described drive sprocket with described circulation sprocket wheel, this driven sprocket can rotate freely.

10. feedway as claimed in claim 9 is characterized in that, is provided with stretching device, thereby it makes described driven sprocket move the tension force of regulating described circulation link chain to direction approaching with described drive sprocket, that separate.

11. feedway as claimed in claim 10 is characterized in that, other parts are removable relatively with its part of guide rail in described circulation,

Described stretching device makes described circulation move the tension force of regulating described circulation link chain with the part of guide rail with described driven sprocket.

12. feedway as claimed in claim 9 is characterized in that, also comprises hand strap driving device, it is connected with described driven sprocket, and the propulsive effort by the described driven sprocket that is delivered to drives handrail.

13. feedway as claimed in claim 4, it is characterized in that, described chain roller disposes in pairs with the state of clamping the chain link of described circulation link chain from the thickness direction both sides of the chain link of described circulation link chain, and the described circulation of rolling for described chain roller is configured in the both sides of thickness direction of the chain link of described circulation link chain accordingly with the configuration of guide rail and described chain roller.

14. feedway as claimed in claim 13, it is characterized in that, see with the state of the chain link of clamping described circulation link chain from the thickness direction both sides of the chain link of described circulation link chain in pairs during the described chain roller of configuration along the working direction of this chain roller, one side's chain roller is configured to overlap on the projecting plane of described pedal chain, and the opposing party's chain roller is configured to not overlapping with the projecting plane of described pedal chain.

15. feedway as claimed in claim 1 is characterized in that, the rotating driving device of described chain drive mechanism comprises: driving motor; The rotary torque of described driving motor is passed to the transmission mechanism of described drive sprocket; Be arranged on the center of described drive sprocket and the rotary torque of described transmission mechanism transmission carried out the reductor of amplification.

16. feedway as claimed in claim 1 is characterized in that, the rotating driving device of described chain drive mechanism comprises: driving motor; The rotary torque of described driving motor is carried out the reductor of amplification; Rotary torque after the amplification is passed to the transmission mechanism of described drive sprocket.

17. feedway as claimed in claim 9 is characterized in that, is formed with the teeth groove that combines with the peripheral part of the chain link of described circulation link chain on described drive sprocket and described driven sprocket.

18. feedway as claimed in claim 17 is characterized in that, is provided with the abundant interval of the chain link disengaging of being convenient to described circulation link chain in the teeth groove that forms on described drive sprocket and described driven sprocket.

19. feedway as claimed in claim 17 is characterized in that, the end of the adjacent chain link in the described circulation link chain is overlapping in the position of described bearing pin each other, the staggered connection of the chain link of each circulation link chain,

Described drive sprocket and described driven sprocket are made overlapping with the multi-disc tooth plate of the roughly the same thickness of chain link of described circulation link chain and be formed with the structure of described teeth groove on each tooth plate,

The teeth groove of a certain tooth plate in the peripheral part of the described adjacent chain link in the described circulation link chain and a plurality of tooth plates that constitute described drive sprocket and described driven sprocket and the teeth groove of other tooth plate alternately combine.

20. feedway as claimed in claim 19, it is characterized in that, described circulation link chain has auxiliary chain link, described auxiliary chain link forms the outer shape roughly the same with the chain link of described circulation link chain, one side's overlay configuration of described auxiliary chain link and described adjacent chain link, described auxiliary chain link is connected with described adjacent chain link both sides in the position of described bearing pin

Described drive sprocket and described driven sprocket are by these three overlapping the forming of tooth plate of tooth plate with the tooth plate of the opposing party institute combination of the tooth plate of the side institute combination of described adjacent chain link, described adjacent chain link and the combination of described auxiliary chain link institute.

21. feedway as claimed in claim 19 is characterized in that, described circulation link chain has rectangular auxiliary chain link, and side's overlay configuration of described auxiliary chain link and described adjacent chain link is connected with described adjacent chain link both sides in the position of described bearing pin,

Described drive sprocket and described driven sprocket are by these two overlapping the forming of tooth plate of tooth plate with the opposing party institute combination of the tooth plate of the side institute combination of described adjacent chain link, described adjacent chain link.

22. feedway as claimed in claim 19, it is characterized in that, the position that becomes the intersection point of slot form between a plurality of tooth plates that constitute described drive sprocket and described driven sprocket is provided with the common hole that connects along thickness direction, is embedded with damper element in this common hole.

23. feedway as claimed in claim 1, it is characterized in that, move with described pedal chain and the starting position and the end position of the thrust delivery areas of applied thrust at described circulation link chain, the load that acts on described pedal chain is shared support by described pedal guide rail and described circulation link chain both sides.

24. feedway as claimed in claim 23, it is characterized in that, near the starting position of described thrust delivery areas and near the end position of described thrust delivery areas, be provided with auxiliary guide rail on described pedal guide rail, this auxiliary guide rail contacts with the pedal chain link of described pedal chain a part of load of described pedal chain is supported.

25. feedway as claimed in claim 23 is characterized in that, in described thrust delivery areas, the pedal roller of described pedal chain leaves described pedal guide rail.

26. feedway as claimed in claim 1, it is characterized in that, each pedal roller of described pedal chain is set at the pushing face clamping on the chain link of the circulation link chain before and after the chain link of this circulation link chain and is maintained on the described pedal roller carrying surface under the state on the pedal roller carrying surface of a chain link that is carried on described circulation link chain.

27. feedway as claimed in claim 26 is characterized in that, at the pedal roller on the pedal roller carrying surface of the chain link that is carried on described circulation link chain and clip between the pushing face of chain link of front and back circulation link chain of this pedal roller and be provided with abundant interval.

28. feedway as claimed in claim 1 is characterized in that, the sheet material end Bending Processing or the forging of the chain link of the pushing face of the chain link of described circulation link chain by will constituting described circulation link chain are bent to form.

29. feedway as claimed in claim 1 is characterized in that, the pushing face of the chain link of described circulation link chain is fastening and other part bonding is formed on the sheet material end of the chain link that constitutes described circulation link chain by the riveted joint that utilizes welding or pin.

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