Conveying system

Abstract

It facilitates the crossing of the tracks by people and objects, while also making track laying easier. [Solution] The transport system (1) includes a first track (10) which includes a pair of main rails (11A) and a pair of auxiliary rails (11B) laid where the main rails are interrupted, with the upper surface of the auxiliary rails being lower than that of the main rails, and a vehicle (100) which has two pairs of main wheels (140) that roll on the main rails and two pairs of auxiliary wheels (150) that roll on the auxiliary rails.

Description

Technical Field

[0001] The present invention relates to a conveying system.

Background Art

[0002] [[ID=第十二条]]Production lines are known for performing flow operations, for example, applicable to automobile assembly plants, that can run a cart on which a work object can be placed along a predetermined track. There is also known a conveying system provided with a vehicle, also called a traverser, that arranges a plurality of production lines or a line as a return path for returning the cart to the start point of the production line in parallel and moves the cart loaded between the lines.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] When such a conveying system is constructed on a flat floor surface without a pit, rails that will be the tracks of vehicles such as traversers will be laid on the floor surface. In order to facilitate access to the space between the lines installed in parallel across the vehicle track, the rails that will be the vehicle track should be as low as possible.

[0005] However, when the rails are made low, the strength of the rails decreases, and the construction of the rails to maintain horizontal becomes complicated. In view of such problems, an object of the present invention is to realize a conveying system provided with a vehicle that facilitates crossing of the track by people and objects and is easy to lay the track.

Means for Solving the Problems

[0006] To solve the above problems, a transport system according to one aspect of the present disclosure is a transport system installed on a floor surface, comprising a first track and a vehicle that moves on the first track, wherein the first track comprises a pair of main rails and a pair of auxiliary rails laid at the point where the pair of main rails are interrupted, the upper surface of which is lower than that of the main rails, and the vehicle has two pairs of main wheels that roll on the main rails and two pairs of auxiliary wheels that roll on the auxiliary rails. [Effects of the Invention]

[0007] According to one aspect of this disclosure, a transport system equipped with vehicles can be realized that facilitates the crossing of tracks by people and objects while also facilitating the laying of tracks. [Brief explanation of the drawing]

[0008] [Figure 1] This figure shows an overview of the transport system according to Embodiment 1 of this disclosure. [Figure 2] This is a plan view specifically showing the traverser (vehicle) of the transport system according to Embodiment 1 of the present disclosure. [Figure 3] This is a front view specifically illustrating the traverser described above. [Figure 4] This is a side view specifically illustrating the traverser shown above. It corresponds to the GG cross-sectional view in Figure 2. [Figure 5] This figure illustrates the arrangement of the main rails on the first track through which the traverser of the transport system according to Embodiment 1 of this disclosure travels. [Figure 6] This diagram illustrates the installation of auxiliary rails in the first track described above. [Figure 7] This is a perspective view showing the traverser (vehicle) of the transport system according to Embodiment 2 of this disclosure. This is a view of the traverser from the bottom side at an angle. [Figure 8] This is a front view showing the traverser (vehicle) of the transport system according to Embodiment 3 of this disclosure. [Modes for carrying out the invention]

[0009] [Embodiment 1] <Overview of the transport system> Hereinafter, one embodiment of the present disclosure will be described with reference to the drawings. Figure 1 is a perspective view showing an overview of the transport system 1 according to Embodiment 1.

[0010] Figure 2 is a partial plan view of the conveying system 1, specifically showing the traverser 100 (vehicle) of the conveying system 1. Figure 3 is a partial front view of the conveying system 1, specifically showing the traverser 100. Figure 4 is a partial side view of the conveying system 1, specifically showing the traverser 100. Figure 4 also corresponds to a cross-sectional view at position GG in Figure 2.

[0011] Figures 2 to 4 also show parts of the transport system 1 other than the traverser 100. Note that these figures are schematic representations, and some components may be omitted as appropriate.

[0012] In this application, as shown in each figure, the XYZ coordinate system is defined such that the Z-axis is vertical, the XY plane is horizontal, and the Y-axis is parallel to the extension direction of the first track 10 on which the traverser 100 travels. The positive direction of the Z-axis is vertically upward. In the drawings of this application, a drawing of the object viewed in the positive direction of the X-axis is called a front view, and a drawing of the object viewed in the positive direction of the Y-axis is called a right side view. The right side view is an example of a side view. Also, a drawing of the object viewed in the negative direction of the Z-axis (vertically downward) is called a top view.

[0013] As shown in FIGS. 3 and 4, the conveying system 1 is installed on the floor F of the factory. Here, the floor F on which the conveying system 1 is constructed is a flat floor without a pit. The conveying system 1 includes a first track 10 for the traverser 100 to move, a second track 20 and a third track 30 for the carriage 50 to travel. As shown in FIG. 2, the carriage 50 includes a stage 51 on which products or the like are placed, and, for example, four wheels 52 for traveling on the second track 20 or the third track 30. The conveying system 1 is applied, as an example, to an automobile assembly line, and the product can be an automobile to be assembled, but is not limited to such cases.

[0014] As shown in FIG. 1, the second track 20 is composed of a pair of rails 21. The third track 30 is composed of a pair of rails 31. The wheels 52 of the carriage 50 roll on the rails 21 and on the rails 31. As shown in FIG. 1, the second track 20 and the third track 30 are arranged so as to extend in parallel with each other in the X-axis direction.

[0015] The second track 20 and the third track 30 constitute a production line. Therefore, the periphery of the second track 20 is a space for workers to perform assembly work, inspection work, etc., and is also a space where parts, tools, jigs, inspection machines, etc., or shelves, workbenches, etc. for accommodating them are appropriately arranged. The same applies to the third track 30. In FIG. 1 and the like, a passage 40 through which people (such as workers) and objects pass between the second track 20 and the third track 30 is shown. The extending direction of the passage 40 is parallel to the second track 20 and the third track 30.

[0016] In addition, other tracks (lines) for the carriage 50 to travel may be provided in the conveying system 1 in parallel with the second track 20 and the third track 30. Such a line may be a production line or a line as a return path for returning the carriage to the starting point of the production line.

[0017] <The traverser and its track (the first track)> The transfer system 1 further includes a traverser 100 (vehicle) that enables the movement of the carriage 50 between the second track 20 and the third track 30, that is, the movement of the carriage 50 between production lines, and a first track 10 for the traverser to move on. As described above, the extending direction of the first track 10 is parallel to the Y-axis direction. Therefore, the first track 10 extends in the Y-axis direction, which is perpendicular to the second track 20 and the third track 30.

[0018] The first track 10 for the traverser to travel on will block access to the space around the second track 20 and the third track 30 where workers perform assembly work, inspection work, etc. Therefore, as shown in FIG. 1, the passage 40 is provided so as to cross the first track 10.

[0019] In the transfer system 1 according to the present disclosure, at the location where such a passage 40 crosses the first track 10, a pair of main rails 11A constituting the first track 10 are interrupted. Then, a pair of auxiliary rails 11B are laid at the location where the pair of main rails 11A are interrupted. Thus, the auxiliary rails 11B are arranged corresponding to the location where the passage 40 crosses the first track 10.

[0020] The auxiliary rails 11B are laid so as to partially overlap with the main rails 11A in the extending direction of the first track 10 before and after the location where the main rails 11A are interrupted, along the extending direction of the first track 10. At the location where the passage 40 crosses the first track 10, for example, when aiming to secure a passage width sufficient for a worker and a handcart to pass through, the length of the auxiliary rails 11B is about 3 m or less.

[0021] As shown in FIGS. 3 and 4, the upper surface of the auxiliary rail 11B is lower than the upper surface of the main rail 11A. Thus, at the location where the passage 40 crosses the first track 10, it is devised so that people and objects can easily cross the first track 10. FIG. 4, which is a cross-sectional view on the G-G line on the passage 40, shows a slope 42 and a floor plate 43 installed at the location where the passage 40 crosses the first track 10 to reduce the burden of passing.

[0022] As shown in Figures 1, 2, and 4, in the first track 10, it is preferable that the gauge of the auxiliary rails 11B is greater than the gauge of the main rails 11A. In particular, it is preferable that a pair of auxiliary rails 11B are provided so as to sandwich a pair of main rails 11A. However, this is not essential, and it is also possible to configure the auxiliary rails 11B to have a narrower gauge than the main rails 11A.

[0023] Next, the traverser 100 will be described in detail. The traverser 100 is a vehicle that can move on the first track 10 and onto which a trolley 50 that has traveled on the second track 20 or the third track 30 can board. In other words, the traverser 100 (vehicle) is capable of carrying a trolley 50.

[0024] For convenience, we define the front, back, left, and right directions of the traverser 100 based on its movement in the positive Y-axis direction. That is, the positive Y-axis direction of the traverser 100 is forward, and the negative Y-axis direction is backward. Also, the positive X-axis direction is the right side of the traverser 100, and the negative X-axis direction is the left side. Thus, the Y-axis direction is the front-to-back direction of the traverser 100, and the X-axis direction is the width direction (left-to-right direction) of the traverser 100.

[0025] As shown in Figures 2 to 4, the traverser 100 has as its main components two longitudinal frames 110 extending in the front-rear direction, two transverse frames 120 extending in the width direction, and a pair of short rails 130. The traverser 100 (vehicle) also has as its main components two pairs of main wheels 140 that roll on the main rail 11A and two pairs of auxiliary wheels 150 that roll on the auxiliary rail 11B.

[0026] The chassis of the traverser 100 is formed by assembling vertical frames 110 located on the left and right sides of the traverser 100, and horizontal frames 120 located towards the front and rear of the traverser 100, respectively. A pair of short rails 130 are a pair of rails for the bogie 50 to enter from the second track 20 or the third track 30, and they span across the left and right vertical frames 110 and are fixed on each of the vertical frames 110.

[0027] The extension direction of the short rail 130 is parallel to the X-axis direction, that is, parallel to the second track 20 and the third track 30. When the trolley 50 is loaded onto the traverser 100, the four wheels of the trolley 50 rest on the short rail 130. In Figure 2, the position of the trolley 50 loaded onto the traverser 100 is shown by dotted lines for the stage 51 and the wheels 52, respectively. Figures 3 and 4 also show the trolley 50 loaded onto the traverser 100.

[0028] The traverser 100, which rolls on the main rail 11A, has two pairs of main wheels 140, i.e., four main wheels 140 in total, consisting of a left front main wheel 141, a right front main wheel 142, a left rear main wheel 143, and a right rear main wheel 144. The left front main wheel 141 and the right front main wheel 142 form one pair of main wheels 140, and the left rear main wheel 143 and the right rear main wheel 144 form another pair of main wheels 140.

[0029] The traverser 100 has two pairs of auxiliary wheels 150, i.e., four auxiliary wheels 150, which roll on the auxiliary rail 11B. These consist of a left front auxiliary wheel 151, a right front auxiliary wheel 152, a left rear auxiliary wheel 153, and a right rear auxiliary wheel 154. The left front auxiliary wheel 151 and the right front auxiliary wheel 152 form one pair of auxiliary wheels 150, and the left rear auxiliary wheel 153 and the right rear auxiliary wheel 154 form another pair of auxiliary wheels 150.

[0030] In the traverser 100 of the transport system 1 according to Embodiment 1, the two main wheels 140 and two auxiliary wheels 150 on the left side, which is one side in the width direction of the traverser 100 (vehicle), are the drive wheels. In other words, the left front main wheel 141, the left rear main wheel 143, the left front auxiliary wheel 151, and the left rear auxiliary wheel 153 are the drive wheels.

[0031] Because the four wheels on each side, front and rear, are used as drive wheels, the traverser 100 can reliably obtain propulsion even when straddling the main rail 11A and the auxiliary rail 11B. Therefore, the traverser 100 can smoothly move between the main rail 11A and the auxiliary rail 11B and travel on the first track 10.

[0032] The means for using the four wheels as drive wheels can be selected as appropriate. As an example, Figures 2 to 4 show a drive system using one motor 160, a chain 162, and a gear mechanism 164 to drive the four wheels. Note that the motor 160 is not shown in Figure 3. Also, the rotation axes of each wheel are not shown in Figures 2 to 4.

[0033] In the drive system of Embodiment 1, the motor 160 drives the left front auxiliary wheel 151 and a sprocket 161 fixed to and rotating with the left front auxiliary wheel 151. Furthermore, the motor 160 is configured to drive the left front main wheel 141 via a gear mechanism 164. An endless chain 162 is stretched between the sprocket 161 fixed to and rotating with the left front auxiliary wheel 151 and the sprocket 161 fixed to and rotating with the left rear auxiliary wheel 153.

[0034] In this way, the driving force of the motor 160 is also transmitted to the left rear auxiliary wheel 153. Furthermore, the driving force is transmitted from the left rear auxiliary wheel 153 to the left rear main wheel 143 via the gear mechanism 164. When stretching an endless chain 162 between a pair of sprockets 161, a free sprocket 163 that changes the direction of the chain 162 may be used as appropriate, as shown in Figure 3. It is preferable to lower the tension of the chain 162 by using the free sprocket 163 in this way to avoid interference with the bogie 50.

[0035] In the above description, the motor 160 was configured to directly drive the rotation shaft of the left front auxiliary wheel 151, but the rotation shaft that the motor 160 directly drives may be configured to be the rotation shaft of another drive wheel. Also, instead of the sprocket 161 and chain 162, a drive mechanism using pulleys and a belt may be applied to the traverser 100.

[0036] <Construction of the first track> As shown in Figure 3, multiple first adjustment members 12 are interposed discretely along the main rail 11A between the main rail 11A and the floor surface F to adjust the height of the main rail 11A. The spacing of the first adjustment members 12 is determined by the strength of the main rail 11A and the total weight of the traverser 100, including the transported object.

[0037] When the traverser 100 is running, the height of the upper surface of the main rail 11A must be kept constant. Therefore, the stronger the bending strength of the main rail 11A in the vertical direction, the wider the spacing between the first adjustment members 12 can be. Since the factory floor surface F is not a perfectly flat surface, it is necessary to adjust the height of each first adjustment member 12 when laying the main rail 11A.

[0038] Figure 5 schematically illustrates the process of laying the main rail 11A while leveling the top surface of the main rail 11A using the first adjustment member 12. As the height needs to be adjusted for each of the first adjustment members 12, the narrower the spacing between the first adjustment members 12, the more complicated the installation of the main rail 11A becomes.

[0039] Figure 6 schematically illustrates the situation in which the auxiliary rail 11B is laid in a similar manner. As mentioned above, in order to use the auxiliary rail 11B as a passageway, it is better if the height of the upper surface of the auxiliary rail 11B from the floor surface F is low. For this reason, the auxiliary rail 11B may be a rectangular prism shape, as schematically shown in Figure 4, with a horizontally elongated cross-section, that is, a rectangle where the width direction is longer than the height direction.

[0040] However, with this rail cross-sectional shape, the bending strength in the vertical direction is weak. Therefore, when laying the auxiliary rail 11B, it is necessary to insert the second adjustment member 13 for the auxiliary rail 11B at high density along the auxiliary rail 11B. Furthermore, in order to lower the height of the auxiliary rail 11B, it is preferable that the second adjustment member 13 is simply a spacer.

[0041] In this case, it is necessary to prepare a variety of second adjustment members 13, which are spacers of different heights, and then select the second adjustment member 13 of the appropriate height for each insertion point on site to install the auxiliary rail 11B. Therefore, laying the auxiliary rail 11B is considerably more complicated than laying the main rail 11A.

[0042] If the entire first track 10 were to be constructed using auxiliary rails 11B, the construction of the first track 10 would become extremely complicated. However, in the transport system 1 according to Embodiment 1, auxiliary rails 11B only need to be laid before and after the points where the track crosses the passage 40, so the construction of the first track 10 as a whole does not become unnecessarily complicated.

[0043] [Embodiment 2] The transport system 1 according to Embodiment 2 of this disclosure is the same as the transport system 1 according to Embodiment 1, except that the configuration of the traverser 100B (vehicle) is changed from that of the traverser 100 in Embodiment 1.

[0044] Figure 7 is a perspective view showing the traverser 100B of Embodiment 2. Figure 7 corresponds to a view of the traverser 100B from an oblique angle on the right side and bottom side of the traverser 100B. In Embodiment 1, the two main wheels 140 and two auxiliary wheels 150 on the left side of the traverser 100 were drive wheels. On the other hand, in Embodiment 2, both pairs of main wheels 140 and both pairs of auxiliary wheels 150 of the traverser 100B (vehicle) are drive wheels. In other words, in the traverser 100B, all of the main wheels 140 and auxiliary wheels 150 are drive wheels.

[0045] Therefore, in the traverser 100B, the right front main wheel 142 is connected to the left front main wheel 141 by a connecting shaft 165, and a gear mechanism 164 is provided between the right front main wheel 142 and the right front auxiliary wheel 152 (the gear mechanism 164 is not clearly shown in Figure 7; see Figure 2). As a result, the driving force from the motor 160 is transmitted to both the right front main wheel 142 and the right front auxiliary wheel 152.

[0046] Furthermore, in the traverser 100B, the right rear main wheel 144 is connected to the left rear main wheel 143 by another connecting axle 165, and a gear mechanism 164 is provided between the right rear main wheel 144 and the right rear auxiliary wheel 154 (the gear mechanism 164 is not clearly shown in Figure 7; see Figure 2). As a result, the driving force from the motor 160 is transmitted to both the right rear main wheel 144 and the right rear auxiliary wheel 154.

[0047] In this way, in the traverser 100B (vehicle) of the transport system 1 according to Embodiment 2, all eight drive wheels are driven by a single motor. In Embodiment 2, even when the traverser 100 straddles the main rail 11A and the auxiliary rail 11B at the front and rear, it can obtain propulsion more reliably and travel more smoothly.

[0048] [Variation 1] Modification 1 is a modification of Embodiment 2, and the traverser according to Modification 1 does not have means for transmitting driving force between the front and rear of the vehicle. In other words, in the traverser according to Modification 1, the sprocket 161, chain 162, and free sprocket 163, which are said to be the transmission means, are omitted.

[0049] Therefore, in the traverser according to Modification 1, the pair of front main wheels (left front main wheel 141, right front main wheel 142) and the pair of auxiliary wheels (left front auxiliary wheel 151, right front auxiliary wheel 152) are drive wheels, and the other wheels are driven wheels. Alternatively, the rear pair of main wheels (left rear main wheel 143, right rear main wheel 144) and the pair of auxiliary wheels (left rear auxiliary wheel 153, right rear auxiliary wheel 154) may be drive wheels, and the other wheels may be driven wheels.

[0050] [Variation 2] Modification 2 is a modification of Embodiment 2, and the traverser according to Modification 2 is equipped with a motor at the rear of the vehicle as well, and is configured so that all wheels are drive wheels. The traverser according to Modification 1 does not have means for transmitting driving force between the front and rear of the vehicle. That is, in the traverser according to Modification 1, the sprocket 161, chain 162, and free sprocket 163, which are said to be the transmission means, are omitted.

[0051] In the traverser according to Modification 2, as in Embodiment 2, a motor 160 at the front of the vehicle drives a pair of front main wheels (left front main wheel 141, right front main wheel 142) and a pair of auxiliary wheels (left front auxiliary wheel 151, right front auxiliary wheel 152). Furthermore, in the traverser according to Modification 2, a motor at the rear of the vehicle is configured to drive a pair of rear main wheels (left rear main wheel 143, right rear main wheel 144) and a pair of auxiliary wheels (left rear auxiliary wheel 153, right rear auxiliary wheel 154).

[0052] [Embodiment 3] The transport system 1 according to Embodiment 3 of this disclosure is the same as the transport system 1 according to Embodiment 1, except that the configuration of the traverser 100C (vehicle) is changed from the traverser 100 in Embodiment 1.

[0053] Figure 8 is a front view of the transport system 1 to represent the traverser 100C of Embodiment 3. In the traverser 100 of Embodiment 1, the chain 162 was stretched between the axle of the left front auxiliary wheel 151 and the axle of the left rear auxiliary wheel 153. On the other hand, in the traverser 100C of Embodiment 3, the chain 162 is stretched between the axle of the left front main wheel 141 and the axle of the left rear main wheel 143.

[0054] Therefore, in the traverser 100C, the two sprockets 161 on which the chain 162 is attached are arranged such that one is fixed to the left front main wheel 141 and rotates together, and the other is fixed to the left rear main wheel 143 and rotates together. Thus, in embodiment 3, the method of transmitting driving force between the front and rear of the vehicle in the drive system of the traverser 100C differs from that of embodiment 1.

[0055] Furthermore, as shown in Figure 8, another difference from Embodiment 1 is that in the traverser 100C of Embodiment 3, the vertical frame 110 is bent so that it is lower in the center in the front-to-back direction. This configuration of the vertical frame 110 makes it possible to mount the trolley 50 on the traverser 100C at a lower position.

[0056] 〔summary〕 A transport system according to Embodiment 1 of the present disclosure is a transport system installed on a floor surface, comprising a first track and a vehicle that moves on the first track, wherein the first track comprises a pair of main rails and a pair of auxiliary rails laid at the point where the pair of main rails are interrupted, the upper surface of which is lower than that of the main rails, and the vehicle has two pairs of main wheels that roll on the main rails and two pairs of auxiliary wheels that roll on the auxiliary rails.

[0057] The transport system according to Embodiment 2 of the present disclosure is configured such that, in Embodiment 1, when the direction perpendicular to the direction of movement of the vehicle is defined as the width direction, the two main wheels and the two auxiliary wheels on one side of the vehicle in the width direction are all drive wheels.

[0058] The transport system according to Embodiment 3 of the present disclosure is configured such that, in Embodiment 1, both pairs of main wheels and both pairs of auxiliary wheels are drive wheels.

[0059] The transport system according to aspect 4 of the present disclosure is configured such that all of the drive wheels are driven by a single motor, as in aspect 2 or 3 described above.

[0060] The transport system according to Embodiment 5 of the present disclosure, in any of Embodiments 1 to 4 above, is configured such that the auxiliary rail is laid in the extending direction of the first track from a point where the main rail is interrupted to a position where it overlaps with the main rail.

[0061] A transport system according to embodiment 6 of the present disclosure further comprises a second track for a trolley to travel on and a third track for the trolley to travel on, wherein the vehicle is capable of carrying the trolley, the trolley can enter the vehicle from the second track, and the first track is arranged such that the trolley can enter the vehicle from the third track.

[0062] The transport system according to embodiment 7 of the present disclosure is configured such that, in any of embodiments 1 to 6 above, a plurality of first adjustment members for adjusting the height of the main rail are interposed between the main rail and the floor surface discretely along the main rail, and a plurality of second adjustment members for adjusting the height of the auxiliary rail are interposed between the auxiliary rail and the floor surface discretely along the auxiliary rail.

[0063] The present invention is not limited to the embodiments and aspects described above, and various modifications are possible within the scope of the claims. Embodiments obtained by appropriately combining the technical means disclosed in different embodiments and aspects are also included within the technical scope of the present invention. [Explanation of Symbols]

[0064] 1. Conveying System 10 1st orbit 11A Main Rail 12 First adjustment member 11B Auxiliary Rail 13. Second adjustment member 100, 100B, 100C Traverser (vehicle) 110 vertical frame 120 horizontal frame 130 Short Rail 140 Main wheels 150 Auxiliary wheels 160 motor 161 sprocket 162 chain 163 Free Sprocket 164 Gear mechanism 165 Connecting shaft 20 Second orbit 30 3rd orbit 40 aisles 50 trolleys 51 stages 52 wheels

Claims

1. The first orbit and, A transport system installed on the floor, comprising a vehicle that moves along the first track, The first track comprises a pair of main rails and a pair of auxiliary rails laid at the point where the pair of main rails are interrupted, the upper surface of which is lower than that of the main rails. The vehicle is a transport system having two pairs of main wheels that roll on the main rail and two pairs of auxiliary wheels that roll on the auxiliary rail.

2. The transport system according to claim 1, wherein, when the direction perpendicular to the direction of movement of the vehicle is defined as the width direction, the two main wheels and the two auxiliary wheels on one side of the vehicle in the width direction are all drive wheels.

3. The transport system according to claim 1, wherein both pairs of main wheels and both pairs of auxiliary wheels are drive wheels.

4. The conveying system according to claim 2 or 3, wherein all of the drive wheels are driven by a single motor.

5. The transport system according to claim 1, wherein the auxiliary rail is laid in the extension direction of the first track, extending from the point where the main rail is interrupted to a position where it overlaps with the main rail.

6. It further comprises a second track for the trolley to travel on, and a third track for the trolley to travel on, The vehicle is capable of carrying the trolley, The transport system according to any one of claims 1 to 3 or claim 5, wherein the first track is arranged such that the trolley can enter the vehicle from the second track and the trolley can enter the vehicle from the third track.

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