JP7440378B2 - Cloth supply device - Google Patents

Description

This invention involves gripping adjacent corners of the cloth with a pair of stretching clamps to stretch the washed cloth one by one and send it to the next process in a cloth washing factory or the like. It is used in a cloth stretching device that stretches the upper side between sections in the left-right direction and carries out the cloth with the upper side stretched out backwards. The present invention relates to a fabric supply device that delivers matching corner portions to the pair of stretching clamps.

As a conventional cloth stretching device, for example, the one described in Patent Document 1 previously disclosed by the applicant of the present application is known, and this cloth stretching device has a cloth input section and a cloth input section. The cloth is provided with a stretching section that stretches the cloth from side to side, and a carrying-out section that carries out the stretched cloth. The input section is provided at multiple locations spaced apart in the left and right direction at the front of the fabric stretching device, and each includes a pair of input clamps that grip adjacent corners of the fabric at the input position, and a pair of input clamps. It has an elevating device that moves the material up and down between a loading position and a delivery position above the loading position.

The spreading section includes a pair of spreading clamps that receive and grip adjacent corners of the fabric from the pair of feeding clamps at the delivery position of each feeding section, and a pair of spreading clamps that move sideways together to transfer the material to each feeding section. The apparatus includes a traversing device that causes a pair of stretching clamps to grip adjacent corners of the cloth at a delivery position, and then traversing the pair of stretching clamps in a direction away from each other to spread the cloth laterally. . Then, the unloading section receives the upper side of the cloth spread in the left-right direction from the stretching clamp via the intermediate moving body and pulls it backward, and also sequentially pulls up the remaining portion below the upper side of the cloth. It has a belt conveyor that transports the entire class backwards.

Japanese Patent Application Publication No. 2018-123466 Japanese Patent Application Publication No. 2014-188377 Japanese Patent Application Publication No. 2010-075444

However, in the conventional cloth stretching device described in Patent Document 1, the traversing device moves the pair of stretching clamps together to the delivery position of each of the plurality of input sections, and the cloth is placed next to each other in the stretching clamps. After gripping the corners, the pair of stretching clamps are moved apart from each other to spread the cloth in the left and right direction, which shortens the operation time from loading to stretching and sufficiently increases processing efficiency. It was still difficult.

In addition, when stretching multiple types of fabrics, especially fabrics with different widths at the top, if they are mixed together, a pair of input clamps may The moving distance of the pair of tensioning clamps from the delivery position at a predetermined interval becomes large, and it takes time for the tensioning to be carried out, and in this respect, it is still difficult to sufficiently increase the processing efficiency.

Therefore, in order to solve the above-mentioned problems of the conventional cloth stretching device, it has been considered to supply cloth to the cloth stretching device from a cloth feeding device.As a conventional cloth feeding device, for example, Patent Document 2 What is described is known. This cloth input device transfers a pair of clamps that grip the adjacent corners of the upper side of the cloth at predetermined intervals, while checking the height of the lower end of the hanging upper side of the cloth and the maximum height of the cloth. The height of the bottom edge is detected by a sensor, and the width and length of the cloth determined from these heights are used to sort and store the cloth by type, and then feed each type into a processing device.

Further, as a conventional cloth feeding device, the one described in Patent Document 3, for example, is known, and this cloth feeding device has a plurality of feeding portions, each of which has a plurality of feeding portions, each of which has an adjacent corner corner. Pairs of input clamps that grip the fabric are once stored in multiple pairs on multiple transport routes, then merged into a common transport route and transported, separated pair by pair near the fabric stretching device, and moved to a common delivery position. In addition to feeding, merging onto a common conveyance route and waiting are performed depending on the type of cloth, thereby avoiding mixing of multiple types of cloth.

However, even if these conventional cloth supply devices sort the cloth by type and deliver the corners of the cloth to a pair of stretching clamps of the cloth stretching device, the common method used when stretching cloth is The moving distance of the tensioning clamp from the delivery position is still large for fabrics with a large width at the upper side, and it is estimated that it is difficult to sufficiently increase processing efficiency.

The object of the present invention is to provide a fabric supplying device that advantageously solves the problems of the conventional fabric stretching devices as described above.
A pair of stretching clamps grips adjacent corners of the cloth, the upper side between the corners is stretched in the left-right direction, and the stretched upper side is carried out backwards. In a cloth supply device used in a stretching device, which conveys input cloth one by one and delivers adjacent corners of the cloth to the pair of stretching clamps,
two measurement paths extending parallel to each other at a predetermined interval, through which a pair of transport clamps are inserted and grip adjacent corners of the upper side of the cloth, respectively, side by side;
a slackness sensor that measures the degree of slackness of the upper side between the corners of the cloth gripped by the pair of conveyance clamps that pass side by side along the two measurement paths;
a plurality of slack-specific supply routes each branching from the two measurement routes and determined according to the degree of slack in the upper side portion;
A pair of transport clamps gripping the corners of the cloth are passed through two slack-specific supply paths corresponding to the degree of slack in the upper side of the cloth among the plurality of slack-specific supply paths. , the cloth is transferred from the pair of transport clamps to the pair of stretching clamps located corresponding to the two slack supply routes that pass through the pair of transport clamps among the plurality of slack supply routes. cloth sorting and supply control means for delivering the corners;
It is characterized by having the following.

In the fabric supply device of the present invention, a pair of conveyance clamps each inserted into and gripping adjacent corners of the upper side of the fabric are arranged side by side on two measuring paths extending in parallel at a predetermined interval. The slackness sensor measures the slackness of the upper side between the corners of the cloth held by a pair of transport clamps that pass side by side along the two measurement paths, and the cloth sorting and supply control means A pair of conveyor clamps gripping the corners of the fabric are connected to one of the plurality of slack supply routes determined according to the degree of slack in the upper side, each branching from two measurement routes. It is passed through two slack-specific supply routes corresponding to the degree of slack in the upper side portion, and is positioned corresponding to the two slack-specific supply routes that pass through a pair of conveyor clamps among the plurality of slack-specific supply routes. The corner portions of the cloth are delivered from the pair of transport clamps to a pair of stretching clamps.

Therefore, according to the fabric supply device of the present invention, the degree of slack in the upper side between the corners of the fabric gripped by the pair of conveyance clamps that pass side by side through two measuring paths extending parallel to each other at a predetermined interval. Based on the results of measuring with a slackness sensor, the width of the upper side of the fabric can be estimated from the degree of slackness, and the cloth is selected from among the supply routes according to the slackness of multiple routes determined according to the degree of slackness. Since the corners are passed through two slack supply paths corresponding to the degree of slack in the upper side portion and handed over to the stretching clamps placed at corresponding positions, the travel distance of the stretching clamps when stretching the fabric can be reduced. Regardless of the size of the width of the upper side of the cloth or the type of cloth, it is possible to shorten the spreading time and sufficiently increase processing efficiency.

In the fabric supply device of the present invention, each of the two measurement routes may branch downward to form one of the plurality of slack supply routes.

In this way, almost no factory floor space is required for branching from the measurement route to multiple slack-specific supply routes, increasing the efficiency of fabric supply space and reducing equipment costs. can.

Here, the slack-specific supply route from which the two measurement routes branch, respectively, may be two routes, an outer supply route and an inner supply route.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a side view showing an embodiment of the fabric supply device of the present invention together with a cross section of a fabric stretching device using the same. FIG. 2 is a cross-sectional view of the cloth supply device of the above embodiment as seen from section A in FIG. 1. FIG. It is a top view which shows one example of a structure of only a supply rail line among the rail lines of the cloth supply apparatus of the said embodiment. It is a top view which shows one example of a structure of only a collection|recovery rail line among the rail lines of the cloth supply apparatus of the said embodiment.

Hereinafter, embodiments of the present invention will be described in detail based on the drawings. Here, FIG. 1 is a side view showing an embodiment of the fabric supply device of the present invention together with a cross section of a fabric stretching device using the same, and FIG. 2 is a side view showing the fabric supply device of the above embodiment. 1 is a sectional view taken from part A in FIG. 1, FIG. 3 is a plan view showing an example of the configuration of only the supply rail line among the rail lines of the fabric supply device of the above embodiment, and FIG. FIG. 2 is a plan view showing an example of the configuration of only the collection rail line among the rail lines of the fabric supply device according to the embodiment of the present invention.

A cloth stretching device 1 using the cloth feeding device of this embodiment is used in a cloth washing factory or the like to stretch washed cloth one by one in order to feed it into the next process, for example, an ironing roller. As illustrated in a sectional view in FIG. 2, a front view in FIG. 2, and a plan view in FIGS. It is equipped with a supply device 10, a spreading section 2 that spreads the input cloth to the left and right, and an unloading section 3 that takes out the stretched cloth. The structure is similar to that of the fabric stretching device.

That is, the spreading section 2 includes a pair of spreading clamps 2a that receive and grip adjacent corners of the fabric C from a pair of transport clamps at a predetermined delivery position, and a pair of spreading clamps 2a that move sideways together. A traversing device 2b that causes a pair of stretching clamps 2a to grip adjacent corners of a cloth C at a delivery position, and then traverses the pair of stretching clamps 2a in a direction separating them from each other to spread the cloth C laterally. It has The unloading unit 3 includes a catch base 3a as an intermediate moving body that receives the upper side of the cloth C spread in the left-right direction from the stretching clamp 2a at the forward position and suction-holds it on the upper surface in the stretched state using negative pressure; As the catch base 3a moves backward and removes the negative pressure, it receives the upper side of the cloth C spread out in the left and right direction, attracts and holds it with the negative pressure, and pulls it backward, and It has a belt conveyor 3b that sequentially pulls up the remaining portion on the lower side and carries out the entire fabric C to the rear.

On the other hand, the fabric supply device 10 of the above embodiment feeds adjacent corners of the fabric C loaded into a pair of transport clamps 11 each having a lever-shaped claw and a running roller that are each biased by a spring to close. A common conveyance path 12 for gripping and conveying with these conveyance clamps 11, and branches from the common conveyance path 12 to the left and right in front of the fabric stretching device 1 and extending parallel to each other at a predetermined interval LM. The upper side between the corners of the cloth C gripped by the pair of transport clamps 11 that sequentially deviate from the common transport route 12 and pass along the two measurement routes 13 from side to side. A slackness sensor 14 that optically measures the degree of slackness of the part by, for example, the amount of light received and outputs it as an ON-OFF signal, and two supply paths for each slack, which are branched from the two measurement paths 13, respectively. It is equipped with an inner supply route 15 and two outer supply routes 16, and a controller 17 having a normal computer as a cloth sorting and supply control means, and the common conveyance route 12, measurement route 13, and The inner supply route 15 and the outer supply route 16 are each formed by a rail having a substantially U-shaped cross section, for example, with the center part of the downward facing surface cut out along the longitudinal direction, thereby forming a supply rail line 18, and forming a measurement route. A normal switching mechanism 19 is provided at the branch point from 13 to the inner supply route 15 and the outer supply route 16.

Here, the two inner supply routes 15 extend parallel to each other at a predetermined interval L1, and the two outer supply routes 16 extend parallel to each other at a predetermined interval L2 larger than L1, and the inner supply routes 15 and Each of the outer supply paths 16 has a substantially U-shape in which the lower ends of a descending path connected to the measurement path 13 and an ascending path facing the spreading section 2 of the fabric spreading device 1 are connected by an arc-shaped connecting portion. In the descending path, the conveyance clamp 11 moves by gravity due to its own weight and the weight of the cloth C held therein, but from the connecting part to the upper end of the ascending path, for example, as in the conventional input part, An endless timing belt placed along the side of the path is driven by a servo motor, a step motor, etc., and one of the many pins protruding from the timing belt arranged in the direction in which it extends is attached to the conveyor clamp 11. A drive mechanism (not shown) that drives the transport clamp 11 by engagement is provided to control the movement of the transport clamp 11.

When the controller 17 receives an ON (high amount of light received) signal from the slackness sensor 14, it determines that the cloth C has a greater degree of slack in the upper side, and grips the corner of the cloth C. The switching mechanism 19 passes the pair of transport clamps 11 from the two measurement paths 13 to the left and right outer supply paths 16, respectively, and when an OFF (low amount of light received) signal is received from the slack sensor 14, the upper side It is determined that the cloth C has a smaller degree of slackness, and the switching mechanism 19 moves the pair of transport clamps 11 that grip the corners of the cloth C from the two measurement paths 13 to the inside of the two left and right paths. The number of transfer clamps 11 passed through the supply path 15 and the number of transfer clamps 11 that have passed through the switching mechanism 19 and the number of stretching operations of the stretching clamps 2a of the fabric stretching device 1, remaining in the inner supply route 15 and the outer supply route 16 are determined. The number of conveyance clamps 11 remaining in the fabric stretching device 1 is determined, and the conveyance clamps 11 are left in the outer supply route 16 or the inner supply route 15 of the two left and right paths passing through the pair of conveyance clamps 11. A pair of extension clamps 2a are arranged to face the ascending paths of the left and right two paths of the one supply path, and the transport clamp 11 is latched to the descending path of the remaining supply path by a normal latching mechanism (not shown). The leading pair of transport clamps 11 that are being moved are released and sent to the ascending path, and the cloth C is transferred from the pair of transport clamps 11, which are driven by the drive mechanism and moved upward through the ascending path, to the pair of stretching clamps 2a. Handle the adjacent corners of the upper side.

Therefore, according to the cloth supply device of the above embodiment, the pair of stretching clamps 2a receive the corner of the cloth C at a position corresponding to the width of the upper side of the cloth C to be stretched next. The moving distance of the stretching clamp 2a when stretching C can be made small regardless of the width of the upper side of the cloth C, thereby shortening the stretching time and increasing processing efficiency.

The fabric supply device 10 of the above embodiment also includes input portions 20 at one or more locations, four locations in the illustrated example, as corner independent input means having two input paths 21 running parallel to each other at a predetermined interval. , the two input paths 21 in each input section 20 are a descending path located far from the fabric stretching device 1 and a lowering path located close to the fabric stretching device 1, as in the inner feeding path 15 and the outer feeding path 16, respectively. It has a substantially U-shape in which the lower ends of the ascending route located on the side are connected by an arc-shaped connecting part, and in the descending route, the transport clamp 11 moves by gravity due to its own weight, but it does not rise from the connecting part. Towards the upper end of the path, an endless timing belt placed along the side of the path is driven by a servo motor, step motor, etc., as in the conventional input section, and the timing belt is driven in its extending direction. A drive mechanism (not shown) is provided to control the movement of the transport clamp 11 by engaging the transport clamp 11 with one of a number of pins protruding from a plurality of pins arranged in a row, and controls the movement of the transport clamp 11. The drive mechanisms 21 operate independently of each other, and the controller 17 operates a switch according to the width of the upper side of the cloth supplied to the input section 20 by the worker W, for example, by the supply conveyor S. In operation, these drive mechanisms are sequentially activated to raise the pair of transport clamps 11 at a distance from each other depending on the width of the upper side of the cloth to be thrown.

Therefore, according to the cloth supply device of the above embodiment, one corner of the cloth is attached to one of the pair of transport clamps 11 at the lower end of the input path 21 depending on the width of the upper side of the cloth to be input. After being gripped, the other corner of the cloth C, which has become easier to find because one corner is pulled up by the upward movement of the transport clamp 11, is gripped by the other transport clamp 11 at the lower end of the input path 21. Therefore, the efficiency of feeding the cloth C can be increased.

The two input paths 21 in each input section 20 merge with each other at the upper end of their ascending paths and are connected to one storage path 22 that slopes forward and downward, and the one storage path 22 is In the storage path 22, the transport clamp 11 moves by gravity due to its own weight and the weight of the cloth C held there; , an endless timing belt 23 placed along the lower part of the path is driven by a servo motor, a step motor, etc., and any one of a number of pins 24 arranged and protruding from the timing belt 23 in its extending direction is conveyed. A drive mechanism 25 that drives the transport clamp 11 by engaging with the clamp 11 is provided to control the movement of the transport clamp 11, and each of these input sections 20 has two input paths 21 and one storage path 22. The common transport path 12 also constitutes a supply rail line 18.

Here, one or more pairs of transport clamps 11 are stored in the storage path 22 at the confluence point from one storage path 22 of each input section 20 to the common transport path 12, and among the transport clamps 11, one or more pairs of transport clamps 11 are stored in the storage path 22. A normal latching mechanism (not shown) is provided that allows the leading pair of transport clamps 11 to pass through a common transport path 12 in a front-back state, and the controller 17 controls the operator W's switch for each type of cloth C. The number of operations and the confluence point detected by a contact-type passage detector (not shown) such as a microswitch or a non-contact type such as an optical sensor installed near the downstream side of each confluence point on the common transport route 12. The data of the number of conveyance clamps 11 that have passed through and the number of conveyance clamps 11 that have passed through the above-mentioned latching mechanism detected by a similar passage detector are input.

Then, the controller 17 determines the type of cloth C stored in the storage path 22 and the order of the pairs of transport clamps 11 that grip it from these data, and moves the common transport path 12 from the upstream side. If a cloth of the same type as the cloth C (for example, A) that passed through the confluence point is at the head of the storage path 22, the first pair of cloths that are latched by the latching mechanism at the confluence point are The conveyance clamp 11 is released and the cloth C is passed from the storage path 22 to the common conveyance path 12, passing through the common conveyance path 12 from the upstream side and passing through the confluence point. When cloth C of a different type (e.g., second type B) is at the beginning of the storage path 22, after the previous type (e.g., first type A) passes through the confluence point, it waits for a certain period of time. Either release the pair of transport clamps 11 at the top of the storage path 22 after emptying the storage path 22, or remove the same type of fabric C (for example, the second type B) as the fabric C at the top of the storage path 22. After passing through the conveyance path 12 from the upstream side and passing through the confluence point, the first pair of conveyance clamps 11 are released, and the conveyance path 22 is passed from the storage path 22 to the common conveyance path 12.

Therefore, according to the cloth supplying device of the above embodiment, the cloth C of the first type or the second type having the same upper side width among the first type A and the second type B is stretched. Since the stretching clamp 2a of the device 1 can perform continuous stretching from the same delivery position, the moving distance of the stretching clamp 2a when stretching the fabric C can be further reduced to shorten the stretching time and improve processing efficiency. In addition, the fabrics C can be collected by type and carried out from the fabric stretching device 1.

Furthermore, in the fabric supply device of this embodiment, the two measurement paths 13 are branched downward, and the two inner supply paths 15 and the two outer supply paths serve as the plurality of slack-specific supply paths. It is 16.

Therefore, according to the fabric supply device of the above embodiment, almost no floor area of the factory is required for branching from the measurement path 13 to the inner supply path 15 and the outer supply path 16, so there is no space for supplying the fabric C. It is possible to increase efficiency and reduce equipment costs.

Furthermore, the fabric supply device of this embodiment has four return paths 26 which are connected to the upper ends of the ascending paths of the two inner supply paths 15 and the two outer feed paths 16, and which are inclined forward and downward. , a common return route 27 which is approximately U-shaped in plan view where these four return routes 26 are sequentially merged, and a common return route 27 that branches off from the common return route 27 and heads toward each input section 20 , and then each input section 20 . A transport clamp supply path 28 that branches into two at the section 20 and slopes forward and downward to connect to the upper end of the descending path of the two-path input path 21 is provided. moves by gravity due to its own weight, but in the common return route 27, an endless timing belt 29 placed along the upper part of the route is driven by a servo motor, step motor, etc. A drive mechanism 31 is provided to drive the transport clamp 11 by engaging one of a large number of pins 30 arranged and protruding in the extending direction with the transport clamp 11, thereby controlling the movement of the transport clamp 11.

The four return paths 26, the common return path 27, and the conveyance clamp supply path 28 are each formed by, for example, a rail having a substantially U-shaped cross section with the center portion of the upward facing surface cut out along the longitudinal direction. The collection rail line 32 is constructed by the same method as above, and each branch point from the common return route 27 to the transport clamp supply route 28 is provided with the same type of rail line as above, which is provided near the upstream side of each branch point in the common return route 27. A passage detector (not shown) is provided, and a normal switching mechanism (not shown) similar to the switching mechanism 19 is provided, and the controller 17 switches the transport clamp 11 that passes through the branch point detected by the passage detector to the switching mechanism. They are separated one by one and sequentially passed through the transport clamp supply paths 28 of the four input sections 20.

Therefore, according to the fabric supply device of the above embodiment, the corner of the fabric C is delivered to the stretching clamp 2a in the ascending path of the two inner supply paths 15 and the two outer supply paths 16. After the transport clamps 11 descend due to their own weight and gather at the common return route 27 through the return route 26, they are supplied one pair to the transport clamp supply route 28 of each loading section 20, and from these transport clamp supply routes 28, It is returned to the upper end of the descending path of the input path 21 and waits to be sent to the input path 21 by activation of the drive mechanism by operator W's switch operation according to the width of the upper side of the cloth to be input. Therefore, the work of putting in the cloth C can be performed efficiently.

Although the above has been explained based on the illustrated examples, the present invention is not limited to the above-mentioned examples and can be modified as appropriate within the scope of the claims. For example, in the cloth supply device of the above embodiment, Although the controller 17 is provided separately from the control device included in the fabric stretching device 1, the control device included in the fabric spreading device 1 may also be used as the controller 17, and the separate controller 17 may be omitted.

In addition, in the fabric supply device of the above embodiment, the two measurement paths are branched into two inner supply paths 15 and two outer supply paths 16 as slack-specific supply paths depending on the slackness of the upper side. However, each of the two measurement paths may be branched into a larger number of slack-specific supply paths.

In the cloth supply device of the above embodiment, the first type and the second type of cloth C are separated by the difference in the width of the upper side. It may be possible to separate the fabrics by different types of fabrics such as sheets and covers or by different customers, which can be determined by the difference, and even in this way, multiple pieces of the same type of fabrics can be continuously applied to the fabric stretching device. The processing efficiency can be sufficiently increased by supplying the same.

Thus, according to the cloth supplying device of the present invention, the degree of slack in the upper side between the corners of the cloth gripped by the pair of conveyance clamps that pass side by side through two measuring paths extending parallel to each other at a predetermined interval can be measured. Based on the results measured by the slackness sensor, for a type of cloth whose upper side width can be estimated from the degree of slackness, the cloth is selected from one of the plurality of slack supply routes determined according to the degree of slackness. Since the corners are passed through two slack supply paths corresponding to the degree of slack in the upper side and handed over to the stretching clamps placed at corresponding positions, the distance traveled by the stretching clamps when stretching the fabric is Regardless of the size of the width of the upper side of the fabric and the type of fabric, the width can be made small to shorten the spreading time and sufficiently increase the processing efficiency.

1 Fabric stretching device 2 Stretching section 2a Stretching clamp 2b Traversing device 3 Unloading section 3a Catch base 3b Belt conveyor 10 Fabric supply device 11 Conveyance clamp 12 Common conveyance path 13 Measurement path 14 Looseness sensor 15 Inside supply path 16 Outside supply path 17 Controller 18 Supply rail line 19 Switching mechanism 20 Insertion section 21 Input route 22 Storage route 23 Timing belt 24 Pin 25 Drive mechanism 26 Return route 27 Common return route 28 Transport clamp supply route 29 Timing belt 30 Pin 31 Drive mechanism 32 Collection rail Line C Cloth LM, L1, L2 Specified interval S Supply conveyor W Operator

Claims (3)

A pair of stretching clamps grips adjacent corners of the cloth, the upper side between the corners is stretched in the left-right direction, and the stretched upper side is carried out backwards. In a cloth supply device used in a stretching device, which conveys input cloth one by one and delivers adjacent corners of the cloth to the pair of stretching clamps,
two measurement paths extending parallel to each other at a predetermined interval, through which a pair of transport clamps are inserted and grip adjacent corners of the upper side of the cloth, respectively, side by side;
a slackness sensor that measures the degree of slackness of the upper side between the corners of the cloth gripped by the pair of conveyance clamps that pass side by side along the two measurement paths;
a plurality of slack-specific supply routes each branching from the two measurement routes and determined according to the degree of slack in the upper side portion;
A pair of transport clamps gripping the corners of the cloth are passed through two slack-specific supply paths corresponding to the degree of slack in the upper side of the cloth among the plurality of slack-specific supply paths. , the cloth is transferred from the pair of transport clamps to the pair of stretching clamps located corresponding to the two slack supply routes that pass through the pair of transport clamps among the plurality of slack supply routes. cloth sorting and supply control means for delivering the corners;
A cloth supply device comprising: 2. The fabric supply device according to claim 1, wherein each of the two measurement paths branches downward to form one of the plurality of slackness-specific supply paths. The fabric supply device according to claim 1 or 2, wherein the slack supply route into which the two measurement routes branch, respectively, is an outer supply route and an inner supply route.

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