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Title:
KEY DUPLICATING MACHINE
Document Type and Number:
WIPO Patent Application WO/2018/122782
Kind Code:
A1
Abstract:
The present invention relates to a key duplicating machine (1 ), preferably of laser keys or dimple keys. A key duplicating machine comprises a support structure (5) defining an alignment plane (XY), a feeler assembly (10) and a cutter assembly (20), which are movable with respect to said structure (5) from and towards the alignment plane (XY). The feeler assembly (10) and said cutter assembly (20) each define a longitudinal axis (Z1; Z2) for a feeler tool and a cutter tool, respectively. The feeler assembly (10) and the cutter assembly (20) comprise respective grasp members (140, 240) adapted to hold said feeler tool (19) and said cutter tool (21 ), respectively, and respective actuators (150, 250) adapted to control said respective grasp members (140, 240) to release said feeler tool (19) and said cutter tool (21 ), respectively.

Inventors:
BIANCHI MASSIMO (IT)
REBULI DAVID (IT)
PIN DIEGO (IT)
TOME' ENRICO (IT)
Application Number:
PCT/IB2017/058499
Publication Date:
July 05, 2018
Filing Date:
December 29, 2017
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
KEYLINE S P A (IT)
International Classes:
B23C3/35; B23B31/26; B23Q3/155
Foreign References:
JPH02237730A1990-09-20
JP2007268652A2007-10-18
US5111573A1992-05-12
EP2581159A12013-04-17
US4687389A1987-08-18
US5833406A1998-11-10
DE10031713A12002-01-10
FR1534808A1968-08-02
Attorney, Agent or Firm:
DE BORTOLI, Tiziano et al. (IT)
Download PDF:
Claims:
CLAIMS

1 . A key duplicating machine (1 ) comprising:

- a support structure (5) defining an alignment plane (XY),

- a feeler assembly (10) and a cutter assembly (20) which are movable with respect to said structure (5) from and toward said alignment plane (XY), said feeler assembly (10) and said cutter assembly (20) each defining a longitudinal axis (Z1 , Z2) for a feeler tool and a cutter tool, respectively,

wherein said feeler assembly (10) and said cutter assembly (20) comprise respective grasp members (140, 240) adapted to hold said feeler tool (19) and said cutter tool (21 ), respectively, and respective actuators (150, 250) adapted to control said respective grasp members (140, 240) to release said feeler tool (19) and said cutter tool (21 ), respectively.

wherein said duplicating machine (1 ) further comprises a control (21 1 ) which is simultaneously active on said actuators (150, 250) so as to control the simultaneous release of said feeler tool (19) and said cutter tool (21 ).

2. A duplicating machine (1 ) according to claim 1 , wherein said duplicating machine (1 ) further comprises a tool magazine (40) which includes at least one pair of slots (41 ) each for accommodating a tool (19, 21 ) which may be constrained to said feeler assembly (19) and to said cutter assembly (21 ), respectively, wherein said tool magazine (40) is movable with respect to said structure (5) along said alignment plane (XY) to align said pair of slots (41 ) with said longitudinal axis (Z1 , Z2) defined by said feeler assembly (10) or by said cutter assembly (20).

3. A duplicating machine (1 ) according to claim 2, wherein said tool magazine (40) comprises a plurality of slots each susceptible to accommodating a cutter tool which may be constrained to said cutter assembly (20).

4. A duplicating machine (1 ) according to claim 2 or 3, wherein said at least one pair of slots (41 ) is arranged at a mutual distance (D) equal to a centre distance between said longitudinal axes (Z1 -Z2) defined by said feeler assembly (10) and by said cutter assembly (20).

5. A duplicating machine (1 ) according to one of the preceding claims, wherein said duplicating machine (1 ) further comprises a first slide (30) for supporting two clamps (16, 17), which are adapted to block an original key to be duplicated and a blank key to be processed, respectively, said slide (30) being movable with respect to said structure (5) along said alignment plane (XY).

6. A machine (1 ) according to one of the claims from 1 to 4, wherein said duplicating machine (1 ) further comprises a first slide (30) for supporting at least one clamp, which is adapted to block at least one blank key to be processed, respectively, said slide (30) being movable with respect to said structure (5) along said alignment plane (XY).

7. A duplicating machine (1 ) according to claim 5 or 6, wherein said tool magazine

(40) may be moved along said alignment plane (XY) independently of said first slide (30).

8. A duplicating machine (1 ) according to any one of claims 1 to 7, wherein said feeler assembly (10) and said cutter assembly (20) are mounted on a slide (31 ) which is movable along a direction (Z) orthogonal to said alignment plane (XY).

9. A duplicating machine (1 ) according to claim 8, wherein said duplicating machine

(1 ) comprises a lever (200) for moving said movable slide (31 ) along said direction (Z), said control (21 1 ) being in the shape of a button (21 1 ) associated with said lever (200).

Description:
16953PTWO_Eng 29 January 2018

KEY DUPLICATING MACHINE FIELD OF THE INVENTION

The present invention relates to the field of machines and/or equipment for duplicating keys. In particular, the present invention relates to a key duplicating machine, of mechanical type or of electronic type, particularly, but not exclusively for duplicating laser type keys or dimple keys.

PRIOR ART

Key duplicating machines of the mechanical type and electronic type are known. Examples of key duplicating machines are described in EP 2581 159, US 4,687,389 and US 5,833,406.

In mechanical type key duplicating machines, a pair of clamps are provided for constraining an original key to be duplicated and a blank key, to be shaped according to the original key to obtain a copy key, respectively. The two clamps are mounted on a slide movable along a plane. A duplicating machine of mechanical type further comprises a feeler assembly, with which a feeler tool is associated, capable of detecting the key cuts of the original key, when this is constrained to the respective clamp, and a cutting assembly, with which a cutter tool is associated to replicate the key cuts of the original key detected by the feeler on the blank key, constrained to the respective clamp. The two tools (cutter and feeler) are typically movable along a direction parallel to their rotation axis and orthogonal to the plane on which the clamps move. The cutter transforms the blank key into copy key. In general, the expression "key cuts" means the pattern/profile of the cuts defined laterally along the shank of the key or, in the case of dimple keys, the arrangement/depth of the holes defined along the shank portion itself.

The feeler assembly and the cutter assembly are constrained to a common support structure. It is necessarily needed to replace both the feeler tool and the cutter tool as a function of the type of key to be produced, in particular as a function of the type and size of the key cuts.

A software which manages the duplication operations according to a code assigned to the key is provided in electronic type key duplicating machines. In these electronic machines, a single clamp is typically provided with the purpose of constraining at least the blank key on which the key cuts corresponding to the code assigned to the key is reproduced.

The main difference between mechanical and electronic key duplicating machines is that in the case of mechanical machines the feeler has the same size as the cutter. This is necessary because the duplication is performed by tracking, i.e. the operator follows the key cuts of the key to be duplicated by means of the feeler, whilst the cutter tool replicates such profile of the blank key, thus generating the copy key. In electronic machines, instead, the duplication occurs according to a code assigned to the key. If the code is missing, it is normally possible to decode the key by exploiting a feeler having a standard tool, which is the same for all keys. In this case, the feeler tool is small in size to be able to enter into the key cuts (holes/cuts) which characterizes the key to be duplicated. The software processes the code or the data provided by the feeler and then controls the cutter to generate the copy key. If the code is missing, the key to be duplicated is firstly constrained to the clamp of the machine. After decoding with the feeler, the key to be duplicated is removed and replaced with the blank key.

In terms of tool change, while the feeler tool and the cutter tool must be replaced according to the key type on mechanical machines, it is only necessary to replace the cutter tool on electronic machines, also in this case according to the type of key cuts to be obtained.

In known cases, the tools are replaced by replacing one tool at a time, by means of manual operation by the operator on the tool itself. In practice, the operator grips the tool to replace freeing it from the feeler assembly r from the cutter assembly, after actuating a release control. Successively, the operator inserts the new tool in the feeler assembly or in the cutter assembly. In the case of key duplicating machines of mechanical type, such sequence of operations is performed both for the feeler assembly and for the cutter assembly.

Such solution is considered not optimal or in all cases improvable from the point of view of practicality and, in particular, of execution times. In this context, the main technical task underlying the present invention is to facilitate the tool change operations both on electronic key duplicating machines and on mechanical key duplicating machines, whereby minimizing the tool change times. It is a further object of the present invention to provide a key duplicating machine which is reliable and easy to manufacture at competitive costs.

SUMMARY

The technical task and the specified objects are substantially achieved by a key duplicating machine comprising the technical features illustrated in one or more of the appended claims. In particular, the key duplicating machine according to the invention comprises a support structure defining an alignment plane, a feeler assembly and a cutter assembly both movable from and towards the alignment plane. The feeler assembly and said cutter assembly each define a longitudinal axis for a feeler tool and a cutter tool, respectively.

According to the invention the feeler assembly and the cutter assembly comprise respective grasp members adapted to hold said feeler tool and said cutter tool, respectively, and respective actuators adapted to control said respective grasp members to release said feeler tool and said cutter tool, respectively.

The use of two actuators, one for the cutter assembly and the other for the feeler assembly makes it possible to manage tool change operations more easily, advantageously reducing the tool change time. With this regard, the duplicating machine according to the invention also comprises a control which is simultaneously active on said actuators to control the simulations release of said feeler tool and of said cutter tool. This solution allows a simultaneous management and actuation of the operative assemblies (feeler assembly-cutter assembly).

BRIEF DESCRIPTION OF THE DRAWINGS

Further features and advantages of the present invention will be more apparent in the following detailed description of possible embodiments of a method according to the invention with reference to the accompanying drawings, in which:

- figure 1 is an axonometric view of a key duplicating machine according to the present invention;

- figure 2 is a side view of the machine in figure 1 ;

- figure 3 is a front view of the machine in figure 1 ;

- figure 4 is an axonometric view of a first component of the machine in figure 1 ;

- figure 5 is a longitudinal section view of the component in figure 4;

- figure 6 is an axonometric view of a second component of the machine in figure 1 ; - figure 7 is a longitudinal section view of the component in figure 6;

- figures from 8 to 12 are five views corresponding to the front view in figure 3, showing, as a whole, an operative sequence of use of the machine in figure 1 .

In the mentioned Figures, the same reference numerals and letters are used to identify the same elements or components.

DETAILED DESCRIPTION

With reference to the accompanying figures, a mechanical type key duplicating machine is generally indicated by reference numeral 1 . As shown in greater detail below, the present invention is also applicable, with appropriate changes, to an electronic type key duplicating machine.

The key duplicating machine 1 comprises a support structure 5 including a base 6 and a column 7. The base 6 comprises a lower surface 8; the column 7 rises from the base 6 and develops in direction mainly orthogonal to the base 6.

In addition to the lower surface 8 and to an opposite top 9 of the column 7, the support structure 5 is delimited by four main sides 1 1 , 12, 13 and 14, which are nearly orthogonal to the lower surface 8. In particular, the support structure 5 is delimited by:

- a front side 1 1 , facing which the operator may place him or herself during the duplication operations,

- a rear side 12, opposite to the front side 1 1 ,

- a left side 13, on the left of the operator during the duplication operations,

- a right side 14, on the right of the operator during the duplication operations. The base 6 supports a first support slide 30 for two clamps 16, 17, which are adapted to lock an original key to be duplicated and a blank key to be processed to generate the copy key. The clamps 16, 17 are of conventional and known type, and for this reason are not described in greater detail. If the duplicating machine is of the electronic type, a single clamp may be provided to lock at least the blank key. If the code of the key to be duplicated is missing, then the key to be duplicated may be initially locked on such clamp, to decode the key itself by means of a feeler tool. At the end of the decoding, the key will be removed and replaced by a blank key, according to a principle known in itself. The first slide 30 is movable on a plurality of balls, or other type of guide, interposed between the first slide 30 and the base 6 and that can allow the movement of the first slide 30 with respect to the base 6 on an alignment plane XY, preferably parallel to the lower surface 8. The guiding system placed between the first slide 30 and the base 6 for moving the first slide 30 on the alignment plane XY is also conventional and known, and for this reason not described in greater detail.

The alignment plane XY is defined by a first direction X, of frontal alignment, oriented from the rear side 12 towards the front side 1 1 and from a second direction Y (orthogonal to said first direction X), of side alignment, oriented from the left side 13 towards the right side 14. The key duplicating machine 1 further comprises a first lever 100, placed along the left side 13 for moving the first slide 30 on the alignment plate XY. The expression "movement on the alignment plane XY" means a movement which may occur along the two directions X and Y which identify such plane. The use of a plurality of balls, or other functionally equivalent means, makes it possible to advantageously translate the first slide 30 along any direction on the plane XY.

The first lever 100 comprises a first grip 1 10, placed at a first end thereof, and a first ball joint 101 , placed on a second opposite end with respect to the grip 1 10. The second end of the first lever 100 is constrained to the base 6 by means of the first ball joint 101 . The first lever 100 further comprises, in intermediate position between the first grip 1 10 and the first ball joint 101 , a second ball joint 102, by means of which the first lever 100 is constrained to the first slide 30, so that a rotation of the first lever 100 about the first ball joint 101 implies a translation of the first slide 30 on the alignment plane XY. By acting on the first lever 100, by means of the grip 1 10, the operator can translate the first slide 30 with respect to the base 6 on the alignment plane XY as desired.

According to other variants of the present invention (not shown), the first slide 30 is moved on the alignment plane XY by means of a control which is different from the first lever, e.g. of electric or electronic type. It is also possible to envisage the use of two different controls, mechanical or electric or electronic, for each of the two directions X and Y. The column 7 supports a second slide 31 movable along a third direction Z, orthogonal to the alignment plane XY and oriented from the lower surface 8 to the top 9 of the column 7. A feeler assembly 10 and a cutter assembly 20, each of which defines a longitudinal axis Z1 , Z2 respectively for a feeler tool 19 and for a cutter tool 21 , are mounted on the second slide 31 . Said longitudinal axes Z1 , Z2 are both parallel to the third direction Z. Said longitudinal axes Z1 , Z2 are arranged at a centre distance D (indicated in Figure 3) evaluated along the second axis Y. The feeler tool 19 and the cutter tool 21 are constrained to respective longitudinal ends of the feeler assembly 10 and of the cutter assembly 20, which ends are facing towards the base 6.

It is worth noting that the longitudinal axis Z2 defined by the cutter assembly 20 represents a rotation axis for the cutter tool 21 . Instead, the longitudinal axis Z1 defined by the feeler assembly 10 represents the axis along which the feeler tool is arranged.

With reference to the accompanying figures 4 and 5, the feeler assembly 10 comprises a body 120 to which an actuator 150 is connected. The actuator 150 is rotatable about an axis parallel to the first direction X and thus orthogonal to the longitudinal axis Z1 defined by the feeler assembly 10. Following its activation, the rotation of the actuator 150 causes the rotation of a cam 180, which pushes a pin 130, coaxial with the longitudinal axis Z1 , towards the base 6. The pin 130 is normally pushed away from the base 6 by means of a contrast spring 170. The pin 130 is inserted in a hollow shaft 160, also coaxial to the longitudinal axis Z1 . A gripper 140 or other grasp member, adapted to retain the feeler tool 19 in the feeler 10, is provided on an end of the hollow shaft 160 facing towards the base 6. When the pin 130 is moved towards the base 6, the gripper 140 is pushed open, allowing the release of the feeler tool 19. Normally, i.e. when the actuator 150 is not active, the contrast spring 170 pushes the pin 130 towards the top 9 of the column 7, thus causing the closing of the gripper 140.

With reference to the accompanying figures 6 and 7, the cutter assembly 20 comprises a body 220 to which an actuator 250 is connected. The actuator 250 is rotatable about an axis parallel to the first direction X and thus orthogonal to the longitudinal axis Z2 defined by the cutter assembly 20. The rotation of the actuator 250 causes the rotation of a cam 280, which pushes a pin 230, coaxial with the longitudinal axis Z2, towards the base 6. The pin 230 is normally pushed away from the base 6 by means of a contrast spring 270. The pin 230 is inserted in a hollow shaft 260, also coaxial to the longitudinal axis Z2. A gripper 240 or other grasp member, adapted to retain the cutter tool 21 in the cutter assembly 20 is provided on an end of the hollow shaft 260 facing towards the base 6. When the pin 230 is moved towards the base 6, the gripper 240 is pushed open, allowing the release of the cutter tool 21 . Normally, i.e. when the actuator 250 is not active, the contrast spring 270 pushes the pin 230 towards the top 9 of the column 7, thus causing the closing of the gripper 240.

According to respective embodiments of the present invention, the actuators 150, 250 can be controlled in mutually independent manner by means of separate controls provided on the duplicating machine 1 , or simultaneously by means of a single control. In the example of embodiment shown in the accompanying figures, such single control is implemented by means of a button 21 1 provided on the top of the grip 210 of the second lever 200. The pressing of such button simultaneously activates the actuators 150, 250 by means of an electric type connection, causing the simultaneous release of the feeler tool 19 and of the cutter tool 21 , according to the methods described above.

The cutter assembly 20 further comprises a pulley 29 which allows the rotation of the hollow shaft 260 and of the cutter tool 21 with it. The pulley 29 is connected by means of a transmission 50 to a motor (not shown in the accompanying figures) housed in the support structure 5.

The key duplicating machine 1 further comprises a second lever 200, placed along the right side 14 to move the second slide 31 , and thus the feeler assembly 10 and the cutter assembly 20, along the third direction Z. The second lever 200 is actuated in rotation about a respective axis, parallel to the second direction Y.

The actuation of the first lever 100 allows the operator to take the feeler assembly 10 and of the cutter assembly 20 respectively at the original key to be duplicated and the blank key to be processed, constrained to the respective clamps 16, 17.

The actuation of the second lever 200, by means of the grip 210, allows the operator to take the feeler tool 19 and the cutter tool 21 into contact with the original key to be duplicated and the blank key to be processed, respectively.

In the variant embodiment of the accompanying figures, the duplicating machine 1 comprises a tool magazine 40, for a plurality of pairs of feeler tools 19 and of respective cutter tools 21 . Each feeler tool 19 and each cutter tool 21 is housed in the tool magazine 40 in a respective slot 41 , so that it can be arranged parallel to the third direction Z. The surface of each slot 41 is either cylindrical or conical, so that each tool 19, 21 , by effect of the conical shape of its free end, can be automatically centered in the respective slot 41 . This occurs when the respective slot 41 is aligned with the longitudinal axis Z1 , Z2 of the feeler assembly 10 or of the cutter assembly 20 and the respective tool 19, 21 is taken into the respective slot 41 , approaching the second slide 31 to the base 6, after having actuated the second lever 200.

For each pair of feeler tool 19 of the respective cutter tool 21 , the respective pair of slots 41 is placed at a mutual distance, measured orthogonally to the third direction

Z (or rather orthogonal to the plane XZ), equal to the centre distance D between the two longitudinal axes Z1 , Z2. Substantially, said centre distance D is evaluated along a direction parallel to the second direction Y defined above.

According to a variant embodiment of the present invention (not shown), applicable to an electronic type key duplicating machine, the tool magazine 40 houses only a plurality of cutter tools 21 , since on such type of duplicating machines, the feeler tool is single and not interchangeable.

Preferably, as indicated above, the actuators 150, 250 are controlled simultaneously by means of a single control, e.g. consisting of a button 21 1 associated with the lever 200 which actuates the second slide 31 on which the feeler assembly 10 and the cutter assembly 20 are mounted. By means of a single control, the actuators 150, 250 are activated so as to allow the simultaneous release of the corresponding tools and/or a simultaneous grasping of corresponding tools located in the slots defined by the tool magazine 40. Simultaneously controlling the actuators 150, 250 increases the speed of the tool change operation, with respect to the known solutions. Indeed, according to this solution, the feeler assembly 10 and the cutter assembly 20 are advantageously managed and actuated at the same time. According to the variant of the accompanying figures, the tool magazine 40 is integral with the first slide 30. The first lever 100 can thus be used also to move the tool magazine 40, to take each of the feeler tools 19 housed in the tool magazine 40 into alignment with the longitudinal axis Z1 of the feeler assembly 10 and each of the cutter tools 21 housed in the tool holder 40 into alignment with the longitudinal axis Z2 of the cutter assembly 20. In particular, the first lever 100 can be used to move the tool magazine 40, so as to take each pair of feeler tool 19 and respective cutter tool 21 into simultaneous alignment, with the longitudinal axis Z1 of the feeler assembly 10 and with the longitudinal axis Z2 of the cutter assembly 20, respectively.

In a variant embodiment of the present invention (not shown), the tool magazine 40 may not be integral with the first slide 30 and can be moved along the alignment plane XY independently from the first slide 30. With this regard, the tool magazine 40 may be integral with a further slide which is movable with respect to the base 6 by means of guides, in form of balls or other type. Such further slide would be independent from the first slide 30 and movable, e.g. by means of a further lever, different from the first lever 100 provided for the first slide 31 . Alternatively, to the lever, an electric or electronic control may be provided also in this case, or two distinct controls, mechanical, electrical or electronic, for each of the two directions X-Y.

Alternatively, the tool magazine 40 could be movable with respect to the base 6 without being fitted on a dedicated slide. Substantially, the magazine could move directly along appropriate means arranged on the base 6.

The accompanying figures from 8 to 12 show a sequence of use of a key duplicating machine 1 , of the mechanical type described above with reference to the accompanying figures.

In a first initial step (figure 8), the duplicating machine 1 comprises a first feeler tool 19a and a first cutter tool 21 a, respectively coupled to the feeler assembly 10 and to the cutter assembly 20. The tool magazine 40 comprises a first pair of slots 41 a, 41 b for the first feeler tool 19a and the first cutter tool 21 a, respectively, and a second pair of slots 41 c, 41 d, in which a second feeler tool 19b and a second cutter tool 21 b are housed, respectively. In order to start the tool change operations, the operator actuates the first lever 100, moving the tool magazine along the alignment plate XY to align the first pair of slots 41 a, 41 b with the longitudinal axes Z1 and Z2 of the feeler assembly 10 and of the cutter assembly 20, respectively.

In a second step (figure 9), the operator actuates the second lever 200 to approach the second slide 31 to the base 6, taking the first feeler tool 19a and the first cutter tool 21 a into the respective first pair of slots 41 a, 41 b. By actuating on the button 21 1 , the operator causes the simultaneous actuation of the actuators 150, 250 and the consequent simultaneous release of the two tools 19a, 21 a from the feeler assembly 10 and from the cutter assembly 20, respectively.

In a third step (figure 10), by keeping the button 21 1 pressed, the operator actuates the second lever 200 to move the second slide 31 away from the base 6. The first feeler tool 19a and the first cutter tool 21 a remain inside the respective first pair of slots 41 a, 41 b. When the first feeler tool 19a and the first cutter tool 21 a are distanced from the feeler assembly 10 and from the cutter assembly 20, respectively, the operator can release the button 21 1 , with consequent simultaneous re-closing of both grippers 140, 240.

During a fourth step (figure 1 1 ), the operator actuates the first lever 100, moving the tool magazine along the alignment plate XY to take the second pair of slots 41 c, 41 d into alignment with the longitudinal axes Z1 and Z2 of the feeler assembly 10 and of the cutter assembly 20. The second feeler tool 19b and the second cutter tool 21 b, housed in the second pair of slots 41 c, 41 d, are thus also aligned with the second longitudinal axes Z1 and Z2 of the feeler assembly 10 and of the cutter assembly 20.

In a fifth step (figure 12), by acting on the button 21 1 , the operator causes the simultaneous actuation of the actuators 150, 250 and the consequent simultaneous opening of both grippers 140, 240. By holding pressed the button 21 1 , the operator actuates the second lever 200 to approach the second slide 31 to the alignment plane XY, taking the second feeler tool 19b and the second cutter tool 21 b into the feeler assembly 10 and of the cutter assembly 20, respectively. The operator thus releases the button 21 1 , with consequent simultaneous re-closing of both grippers

140, 240. The operator actuates the second lever 200 to move away the second slide 31 from the base 6. The second feeler tool 19b and the second cutter tool 21 b remain coupled to the feeler assembly 10 and the cutter assembly 20, respectively, consequently completing the tool change operations.

Alternatively, for variants made with two different controls for actuators 150, 250, the sequence described above is similar, with the only difference that the feeler assembly 10 and the cutter assembly 20, and in particular the respective grippers 140, 240, are controlled separately, not simultaneously.

The sequence described above is also applicable to an electronic type key duplicating machine 1 . In such case, the tool change concerns only the cutter assembly 20, since the feeler tool of the feeler assembly 10 in such case is single and consequently does not need to be replaced.

In all cases, the sequence described above and the variables make it possible to considerably reduce the tool change times with respect to the prior art.




 
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