Classifications

• • A—HUMAN NECESSITIES
  • A43—FOOTWEAR
  • A43D—MACHINES, TOOLS, EQUIPMENT OR METHODS FOR MANUFACTURING OR REPAIRING FOOTWEAR
  • A43D95/00—Shoe-finishing machines
  • A43D95/08—Machines or tools for scouring, abrading, or finishing, with or without dust-separating

Definitions

• the invention relates to finishers specially used for re-soling the shoes according to the claims.
• Finishing machines are used in various fields and for multiple applications such as for example resole of shoes and shoes of all categories. Perhaps the most well-known examples of such machines are the shoe-finishing machines which are used worldwide in the depositor's stores.
• Finishing machines for re-soling shoes perform variable and complementary tasks. They are equipped with several tools powered by motors, which are aligned next to each other on a vertical work table. On the front of these finishers are arranged milling tools for the heels and for the soles, brushing tools, glass tools, etc. Originally, such alignment of the various tools was made necessary by the positioning of the return shafts which entrained them. With the latest developments, the devices are directly connected (without drive belt) to each engine used individually, which keep the layout aligned. Finishing machines have a whole infrastructure: in addition to the various motors to drive each tool, they have dust extraction and ventilation devices during product finishing and they are managed by a service keyboard.
• finishers such as those currently designed for use
• the operator must stabilize the object to be repaired in one hand, or if he can in both hands, and with the help of his chest. It is for example obliged to position the object with outstretched arm in front of the axes of rotation of the tools to be milled.
• the object to be repaired must be held in an almost fixed position relative to the opening of a suction device, so that the dust is collected by one suction outlets.
• the distribution of the tools with their motors and transmission belts, their suction devices distributed over the entire front of the machine represents a excessive and superfluous equipment in specific installations subsequently leading to inefficient operation and too high energy consumption.
• the tools are often started all at once, even if a single tool with a single motor and a single suction device is sufficient. This increases the production, energy and maintenance costs of the machine according to the current current concept.
• the said finishers are too large, too noisy, they emit too much dust, electromagnetic radiation and are difficult to maintain or even repair.
• the present invention aims to provide a solution to all these problems by creating a finisher of a particularly compact and economical construction which can accomplish each operation.
• this object is achieved with a finisher of an entirely new and simplified design.
• the tools actuated by motors are arranged on several adjacent and discontinuous work tables along differentiated axes. Said work tables are oriented in different directions of arrangement.
• the various tools are arranged on several miniaturized work tables with their own infrastructure and arranged in modular units.
• This new modular finisher consists of at least one module with at least one motor-powered tool.
• the finisher is complex, it represents a combination of several tools which complement each other and it consists of modular tool systems which are fixed in a frame specific to the finisher.
• the modules are arranged in this chassis so that the modules are oriented in different directions of arrangement.
• the modules are interchangeable and can easily be replaced.
• the tools actuated by motors may or may not be juxtaposed with each other to form a symmetrical modular finisher.
• the tools and their work tables are arranged on a frame pivoting relative to the operating platform, which allows the use of various modules without restriction due to their proximity.
• the chassis can be pivoted around a horizontal or vertical axis of rotation.
• the tools and their miniature work tables can be turned around a horizontal or vertical axis of rotation, mounted on a chassis.
• the area occupied by the modular finisher and the work table required by the operator is reduced to a minimum.
• the operator can work in a preferred position in relation to the counter and to customers. Since he no longer has to move around a modular finisher with a swivel frame, he can work, for example, right in front of the counter and in front of customers. He can also work next to the counter and the customer, or he can work in a biased position with respect to the counter and the customers, etc.
• Each of the modules therefore includes tools with a miniaturized work table and all of its infrastructure in one unit.
• miniaturized work tables are arranged so as to form the walls of a geometric element such as a cube or a hexahedron.
• tools to strip to be locked tools to brush and grind in discs
• adapters for these brushing tools to adapt and vary the polishing surface
• differentiated milling tools for heels and soles adapters for these milling tools to adapt and vary the thickness of the milling surfaces .
• the use of grinding tools is a novelty, in comparison with the traditional finishers of the applicant, which are only equipped with strips to be fixed.
• These tools are arranged in the finisher so as to form a modular tool system.
• This system is characterized by the combination and the concentration of several elements in a module.
• the tools and their infrastructure are produced in a more condensed and compact manner.
• the milling tools and their suction devices are now brought together so that the heel and shoe cutters and the suction mouth are only a few millimeters apart, the suction device is even completely integrated into the cutter itself.
• the suction device can be dimensioned more modestly and the power and performance of the motors can be adapted to each type of operation, reducing installation costs, production costs and especially the maintenance costs of this finisher. modular without altering its effectiveness.
• the advantages of these modules result from the design of the modular finisher with almost independent units on a single chassis.
• the orientations of the work tables are differentiated.
• the tools are arranged on the work tables so that the axes of rotation of the driving elements are essentially parallel or perpendicular to the arrangements of the tools used, that is to say to the orientations of the work tables.
• milling cutters, disc-shaped axial brushes and grinding tools have axes of rotation essentially parallel to the working tables, the wheels of a strip to be locked, on the other hand, have axes of rotation essentially perpendicular at work tables.
• the miniature work tables can be oriented individually depending on the size of the operator and for optimal visual control, the tools are arranged in a strictly functional manner with respect to the surface of the work table. work and in relation to the operator. Due to the compact construction of the finisher, the operator can work very ready and in a frontal position with the tool. Each tool can be arranged at an optimized angle so as to give the operator a large field of vision for an operation that is not tiring and safe.
• FIG. 1 shows a schematic perspective view of a first preferred embodiment of a finisher according to the invention.
• FIG. 2 shows a schematic view of another preferred embodiment of a finisher according to the invention.
• FIG. 3 shows a schematic perspective view of another preferred embodiment of a finisher according to the invention.
• FIG. 4 shows a front view of a unit of a finisher showing a first embodiment of two milling tools for soles and heels.
• FIGS. 5 and 6 show a side view and a rear view of a unit of a finisher showing an embodiment of milling tools according to Figure 4.
• FIG. 7 shows a side view of a unit of a finisher showing another embodiment of a milling tool with incorporated suction device.
• FIG. 8 shows a side view of a unit of a finisher showing another embodiment of a milling tool with telescopic blade holder head.
• FIG. 9 shows a perspective view of a unit of a finisher showing the embodiment of a milling tool according to the
• FIG. 10 and 11 show two front views of a unit of a finisher showing two embodiments of a milling tool with removable protection.
• FIG. 12 and 13 show perspective views of a unit of a finisher showing an embodiment of a brushing tool with brush changer depending on the chosen color.
• Figure 14 shows a perspective view of a unit of a finisher showing an embodiment of a strip tool to be locked.
• FIG. 1 shows a schematic side view of a first preferred embodiment of a modular finisher according to the invention.
• Finisher 1 looks like a drum. It has a base frame 2, support arms 3 and a pivoting frame 4. These elements are of stable construction and made with known materials, such as for example profiles and cut pieces of steel, fine steel, light metal but also made of plastic and wood.
• the support arms 3 are stabilized by the base frame 2 and support the pivoting frame 4. They allow the mobility of the pivoting frame 4 thanks to rotation tools 6. They also allow the individual height adjustment of the miniaturized work tables according to the size of the operator.
• the pivoting frame 4 is movable by 360 ° around its horizontal axis of rotation 5, in such a way that the actuation of the rotation mechanism 6 is transmitted in rotation from the pivoting frame 4 through the struts 15.
• the rotation 6 is based on an axial ball bearing and can be fixed in an orientation chosen by a stop mechanism. Such a rotation mechanism 6 can be performed automatically, without operator intervention, or it can be performed interactively, with operator intervention. Such rotation mechanisms 6 are known. A person skilled in the art, knowing the present invention, can carry out a wide range of different embodiments.
• the height of the pivoting frame 4 is adjusted by changing the height of the horizontal axis of rotation 5. For example, the length of the support arms 3 can be adapted to the operator's preferred working height .
• the pivoting frame 4 has a honeycomb structure.
• This hexahedron structure with six lateral sides 7 of dimension and with a separation angle of 60 ° serves as a basis for the insertion of the units or modules 8.
• the pivoting chassis 4 is designed to accommodate up to six modules 8.
• Each module 8 has a miniaturized work table 9, with at least one tool actuated by a motor and the said tools are accessible on miniature work tables 9, which are oriented with 0 different layout directions.
• the chassis 4 can be fitted with conductive bars.
• the miniaturized work tables 9 of the modules 8 are separated from each other by an angle of 60 °, which allows the use of various modules 8 without restriction of movement in their surroundings. During the finishing operations of the products, it suffices to turn the pivoting frame 4 by an angle of 60 °, 120 ° or 180 ° to switch from one unit to another.
• the platform of maneuver 10 is minimal. It is understood that a person skilled in the art, knowing the present invention, can produce other pivoting frames 4, with other shapes, with the necessary number of work tables and with other symmetries.
• the modules 8 are prefabricated units, which comprise, in addition to the tool itself, a whole infrastructure for its operation.
• the modules 8 are interchangeable, which can quickly be replaced in the event of a breakdown or for maintenance operations.
• FIG. 1 shows a module 8 combined, with a brushing tool 11 and with a grinding tool 12. These two tools are arranged one next to the other on the miniaturized work table 9.
• L infrastructure that is to say the motors 14 and the service electronics of these two tools 11,12 are partially hidden by this work table 9.
• the tools 11,12 are managed by a service keyboard 20 inserted in the work table 9.
• the brushing tools 11 and the wheel tool 12 in the form of discs can be produced in differentiated shapes and they can be designed for different colors. They can be fitted with adapters to adapt and vary the polishing surface of brushes and grinding wheels.
• the brushing tools 11 and the grinding tool 12 and their adapters form a modular tool system. This system is characterized by the combination and the concentration of several elements in a module.
• the use of grinding tools is also a novelty, in comparison with the traditional finishers of the depositor, which are equipped with strips to be glazed, therefore noisy, polluting and which may cause the risk of fire.
• the brushing tool 11, the grinding tool 12, as well as their motors and their service electronics are tried and tested tools known to those skilled in the art.
• Figure 2 shows a schematic side view of another preferred embodiment of a modular finisher according to the invention.
• This embodiment of a finisher looks like a kiosk.
• the finisher 1 differs from the embodiment according to Figure 1 in that its chassis 4 is asymmetrical and rigid.
• the specification refers to that of Figure 1. Only the differences from this will be discussed.
• the finisher 1 has only a rigid frame 4.
• This rigid frame 4 is stationary and it allows an adjustment in height of the rigid frame 4 according to the size of the operator.
• the height adjustment of the rigid frame 4 is done for example by changing the length of the support legs 23 of the rigid frame 4.
• each module 8 with suc miniaturized work tables 9 can be arranged so as to form the walls 7 of a polyhedron. These walls form angles differentiated from each other.
• the miniature work tables 9 are larger than in the embodiment according to Figure 1.
• the operating platform 10 is larger than in the embodiments according to FIGS. 1 and 3.
• Each module 8 and its miniaturized work table 9 have at least one tool actuated by a motor and said tools, which are oriented with different directions of arrangement 0. Their separation by differentiated angles allows the use of various modules 8 without restriction of movement in their surroundings.
• FIG. 2 shows a module 8 combined, with a brushing tool 11 and with a grinding tool 12, which is managed by a service keyboard 20 inserted in the work table 9.
• Figure 3 shows a schematic side view of another preferred embodiment of a modular finisher according to the invention.
• This embodiment of a finisher resembles that according to Figure 1.
• the finisher 1 is distinguished by the fact that its chassis 4 is pivotable about a vertical axis of rotation 5.
• the finisher 1 therefore resembles a carousel.
• the specification therefore refers to that of Figure 1 and in the following, only the differences from it will be discussed.
• the finisher 1 has a base frame 2, struts 15 and a pivoting frame 4.
• the struts 15 are stabilized by the base frame 2 and support the pivoting frame 4. They allow the mobility of the pivoting frame 4 thanks to vertical rotation tools 6 and they allow the height adjustment of the pivoting frame 4 according to the size of the operator.
• the pivoting frame 4 is movable by 360 ° around its vertical horizontal axis of rotation 5, in such a way that the actuation of the rotation mechanism 6 is transmitted in rotation from the pivoting frame 4 through the struts 15.
• the mechanism 6 is based on a radial ball bearing and can be fixed in an orientation chosen by a stop mechanism.
• the height adjustment of the pivoting frame 4 is done for example by changing the height of the rotation mechanism 6 or by changing the height of the base frame 2.
• FIG. 3 shows a module 8 combined, with a brushing tool 11 and with a grinding tool 12, which is managed by a service keyboard 20 inserted in the work table 9.
• Figures 4 to 6 show a unit 8 according to the invention of a preferred embodiment with two cutters 16,16 '.
• Figure 4 shows a front view
• Figure 5 shows a side view
• Figure 6 shows a rear view.
• This unit 8 with two milling tools 16,16 ' is provided with a miniaturized work table 9 with the same dimensions as the units with the brushing and grinding tools according to Figure 1.
• the unit 8 can thus be inserted in the pivoting frame 4 of this modular finisher 1 by screws 13, so that it is accessible by its miniaturized work table 9 and that several miniaturized work tables 9 of modules 8 are oriented in directions of arrangement 0 different.
• the two 16,16 'cutters each have 17,17' blade holder heads, 18,18 'cutter holders and their infrastructures are composed of 14,14' motors, 19,19 'dust protectors which make part of the suction devices 21,21 '.
• the milling cutters 16,16 ' are securely fixed to the miniature work table 9.
• the blade-holder heads 17,17' are suitable for milling heels and milling soles. These are, for example, blade-holder heads with a width of 18 mm.
• the two motors 14,14 ' are standard and identical electric motors. For safety reasons, the motors 14,14 'of the cutters 16,16' of the same unit 8 cannot be started at the same time.
• suction ports 22,22 ' are separated by a minimum distance of only a few millimeters from the heads 17.17 'blade holder.
• This construction offers the unique advantage, that the dust is collected in its entirety at the very place of its production. The dust is collected as close as possible to the 17,17 'blade holder heads which work the product.
• This traditional remote positioning has major drawbacks. The operator is obliged to hold the object to be milled in a fixed position in front of the milling heads and relative to the suction mouth, so that most of the dust is sucked by this device.
• the improvement of the finishers according to the invention is linked to the increase in the solid angle of the dust accelerated by the blade-holder heads 17,17 'and gripped by the suction mouths 22,22'.
• FIG 4 shows that the suction ports 22,22 'cover approximately 120 ° of the circumference of the blade heads 17,17' and Figure 5 shows that the suction ports 22,22 'form an opening on both sides of the blade holder heads 17,17 'so that all possible paths of dust generated during milling are included in this opening at a maximum solid angle.
• the suction capacity of the suction devices 21, 21 ′ can be resized in comparison with the state of the art. Suction devices with a lower suction capacity significantly reduce purchase costs and are less expensive to maintain.
• Figure 6 shows a rear view of a module 8 and shows part of the structure.
• Figure 6 shows that the suction outlets 22,22 'of the suction devices 21,21' are connected by flexible suction pipes 21.1,21.1 'and by a rigid suction pipe 21.2 to a suction fan 25
• a connection 27 makes the joint between the suction lines 21.1, 21.1 'and 21.2.
• the suction fan 25 can be provided with purification filters. These elements form a modular tool system. This system is characterized by the combination and concentration of several elements in a module.
• the motors 14,14 'of the milling tools 16,16' and the suction fan 25 are connected through interconnection lines 26 ', 26, "and 26'" to an electronic service panel 24.
• This electronic panel of service 24 is managed through interconnection lines 26 by the control keyboard 20.
• the electronic service panel 24, the management of the motors 14, 14 ′ and the suction fan 25 are known to a person skilled in the art. Aware of the present invention, it can realize a wide range of different infrastructures. Preferably, the various motors of a unit of this finisher are started only when the tools of the unit are used and they are automatically stopped after use.
• modules 8 in the chassis 4 of a modular finisher 1 comprises service electronics 24 and motors 14, 14 ′ which are optimally adapted to their task.
• the motors of the milling cutters 16,16 'according to Figures 2 and 4 and of the grinding wheel 12 according to Figures 1 and 3 can create a speed range from 0 to 12000 rotations / minute. In current designs it is possible to continuously adjust, for example using a rheostat, the speed range from 5,600 to 6,700 rotations / minute. Depending on the materials to be treated, the motors can operate the tools at different speeds.
• the milling speed for rubber is approximately 5,600 rotations / minute, for leather it is 6,500 rotations / minute and for synthetic it is 7 ' 500 rotations / minute.
• the power and performance of the 14,14 'motors are adapted to each type of operation, reducing installation costs, production costs and especially the maintenance costs of this modular finisher without altering its efficiency.
• the brushing and grinding tools have motors 14 at a single speed, but the adapters with which they can vary their polishing surface are actuated with motors at variable speeds. It is thus possible to enlarge or reduce the polishing surface in a simple way. This construction is compact and solid. It can be achieved with a production cost much lower than the production costs of comparable systems. The assembly is simple and fast.
• the modules 8 are inserted into the free walls 7 of a chassis 4, then they are mechanically attached with the chassis 4 and they are connected to the power supply.
• the connection can be made through the support arms 3 and the base frame 2.
• this connection is made directly through the base chassis 2.
• the suction fan 25 according to Figure 6 can be positioned in the base frame of a modular finisher 1 according to Figures 1 or 3. For the assembly of the module 8 according to Figure 6 it is enough to connect the suction lines and interconnection lines to this suction fan 25.
• FIG. 7 shows a side view of a unit showing part of another preferred embodiment of a milling tool 16 with incorporated suction device 21.
• This cutter 16 is comparable to the embodiment of a cutter according to the preceding figures.
• One or two such cutters can be mounted on a miniaturized work table of a unit and fit into the chassis of a modular finisher according to the invention.
• the cutter 16 according to Figure 7 is provided with a built-in suction device.
• This suction device 21 forming part of the cutter 16 being arranged on the cutter holder 18, is driven directly by the motor 14 of the cutter 16 propelling the dust directly into a filter 31 and into a container 32.
• the advantages of this embodiment are multiple. First, the construction of the finisher is even more compact.
• the milling cutter 16 and the suction device 21 are integrated on a single miniaturized work table 9. It is no longer necessary to provide suction lines, nor connections or suction fans. Then, the dust generated during milling is sucked by the suction mouth 22 forming an opening on the side of the blade holder head 17 and the dust protection 19. Said dust protection encloses the milling cutter 16 in its quasi all, leaving only an access opening during the milling operation on a part of the blade-holder head 17.
• the suction mouth 22 covers approximately 240 ° of the circumference of the blade-holder head 17 of so that most of the possible paths of dust generated during milling are included in this suction mouth 22.
• the dust protection 19 makes the construction even more compact compared to the embodiment according to Figure 5
• the dust is propelled by a flexible suction line 21.1. It is filtered by a filter 31 and it is stored by a container 32.
• the filter 31 and the container 32 are arranged on the unit 8 and they are easily accessible for washing the filter 31 and for emptying the container 32.
• the filter 31 and the container 32 are fixed directly to the outlet pipe of the suction device 21.
• these are for example provided with flanges, allowing easy detachment.
• the cutter 16 is arranged on its miniaturized work table 9, so that the module 8 can be inserted into the chassis of a finisher at an optimal angle relative to the operator's work station. An orientation of the direction of arrangement 0 of the cutter 16 from 15 ° to 50 ° relative to the operator has proved to be not very tiring, an inclination of 35 ° allows the operator an optimal control of the milling.
• the cutter 16 of the embodiment according to Figure 7 is provided with a modulator 57.
• This modulator 57 is arranged inside the protection removable 34 acting as a milling plate.
• the modulator 57 is arranged on the side of the suction mouth 22 adjacent to the blade holder head 17.
• This adjustment means is for example a regulating screw.
• Each change in diameter of the blade holder head 17 is corrected by a simple adaptation in length of the modulator 57. This is done instantaneously, by actuating the regulating screw.
• the removable protection 34 can be removed instantly.
• the removable protection 34 removed allows access with tools to the blade holder head 17.
• a fork 56 is arranged in the dust protection 19 and this fork 56 acts directly on the cutter holder 18.
• the cutter holder 18 is free rotor and can be stopped move the fork 56 in a corresponding notch in the cutter holder 18.
• the rapid actuation of the fork 56 is done, for example, by pushing a button on the fork 56.
• Figures 8 and 9 show a side and perspective view of a unit showing part of another preferred embodiment of a milling tool 16 with telescopic or movable blade-holder head 17.
• a milling tool 16 with telescopic or movable blade-holder head 17.
• One or two milling cutters This type can be mounted on a miniature work table of one unit and can be inserted into the chassis of a modular finisher according to the invention.
• This cutter 16 is comparable to the embodiments of cutters according to the preceding figures. Thereafter we will limit our to the description of the differences compared to the embodiments of milling cutters according to the preceding figures.
• the milling tool 16 is provided with two blade holder heads 17,37.
• a blade holder head 37 is arranged in a fixed manner and the other telescopic blade holder head 17 is arranged in a removable manner with respect to the first blade holder head 37.
• the two holder heads -blade 17.37 are arranged coaxially so that the fixed blade holder head 37 is located inside the telescopic or movable blade holder head 17. This arrangement of two blade holder heads 17.37 including the distance is adjusted relative to each other allows modulation of the milling surface. In an initial position, the two blade-holder heads 17, 37 are at the same height, forming a minimum milling surface.
• the adjustment of the distance can be achieved by the manipulation of an adjustment lever 36 acting on the cutter holder 38 of the telescopic blade holder head 17 and allowing fixing of a position chosen by the snap of the adjustment lever 36.
• the inner blade holder head 17 is 18mm wide, thus allowing adjustment of the depth of the two blade holder heads 17, 37 with a milling surface wide from 0 to 18mm.
• the blades of the blade holder head 37 are inclined for example 45 ° relative to the inner blade holder head 17.
• the snap of the adjustment lever 36 allows the definition of a range of predefined depths, for example, positions of 2.5, 4, 7, 9, 12, 4, 16, 18mm. Those skilled in the art, knowing the present invention can achieve a wide range of different executions with such cutters with telescopic blade holder head.
• It can, for example, carry out an automatic distance adjustment, by means of a motor driving the cutter holder 18 of the telescopic blade holder head 17 in a predefined position and managed by a service keyboard. It is also possible to reverse the arrangement of the two cutter heads and to adjust the depth between two cutter heads by a telescopic or movable cutter head arranged inside a fixed cutter head .
• the cutter 16 is provided with a shoe support 28 being arranged inside the dust protection 19.
• This shoe support 28 represents a support and allows the operator to place there the shoe during milling. More specifically, the operator places the shoe on the shoe support 28 and on the inclined blades of the outer blade holder head 17 so that he can mill in a position supporting the edge of the shoe by the inner blade holder head 37.
• the shoe support 28 and the inclined blades of the blade holder head 17 form a combined and wider support.
• the adjustment lever 36 not only actuates the blade holder head 17 relative to the inner blade holder head 37, but it also actuates the shoe support 28, so that that the operator can use this combined support regardless of the depth of the milling surface chosen.
• the advantages of this embodiment are multiple. First, it saves time because it is no longer necessary, as with the known strawberry models, to exchange the entire blade holder head of the strawberry according to the thickness of the heel of a shoe.
• the change of a blade holder head lasts one or more minutes compared to the almost instantaneous adjustment according to the invention, which represents a considerable time saving, given the high frequency of repetition of this operation.
• the dust suction is no longer limited to the suction by the suction mouth 22 forming an opening on the ribs of the blade holder head 17 and the dust protection 19, but it is also carried out through the central opening of the two hollow blade-holder heads 17.37.
• the shoe support 28 is provided with suction openings.
• the dust suction is carried out by the suction mouth 22, by the central opening of the two hollow blade holder heads 17,37 and by the suction openings of the shoe support 28. Therefore, the capacity of suction of the suction device 21 can be resized in comparison with the state of the art.
• the milling plate 35 normally serving as protection to prevent the strawberry from overflowing, resulting in a cut in the leather of the shoe during milling, obtains a new function thanks to the use of hollow blade-holder heads 17, 37. According to the invention, the milling plate 35 acts as a cover, so as to close a central part of the head of the cutter 16 and thus increases the suction power and prevents the appearance of dust.
• This milling plate 35 can also be provided with a modulator for adjusting a change in diameter of the blade holder head 17 as shown in the embodiment according to Figure 7.
• This modulator does not appear in Figures 8 and 9 only for the sake of clarity.
• Figures 10 and 11 show two front views of a unit showing two embodiments of removable protections 34 of a cutter 16.
• the cutter 16 is comparable to the embodiments of cutters according to the preceding figures. We will limit our to the description of the differences compared to the embodiments of the cutters according to the preceding figures.
• the removable protection 34 acts as a rotating disc, so as to close the peripheral part of the head of the cutter 16 and thus increase the suction power and avoid the appearance of dust.
• said removable protection 34 is movable by a rotation mechanism, for example mounted on a ball bearing 33 arranged for example in the edge of the dust protection 19.
• four spring balls are arranged at an angle of 90 °, thus allowing a 360 ° rotation of the removable protection 34 on the edge of the dust protection 19.
• This rotary disc is provided with a milling access opening at an angle of approximately 120 ° from the circumference of the blade holder heads 17.37.
• This milling access opening is large enough to allow the milling of a shoe 50, it easily adapts to the change of position, to the contour of the shoe 50.
• the milling access opening is minimal and substantially lower to that of the embodiment according to Figure 5, so that most of the dust generated during milling is absorbed.
• the removable protection 34 acts only as a section of a fixed disc.
• said protection 34 is removable by means of a movement mechanism, for example by means of a spring slide 53 arranged on the edge of the dust protection 19.
• This fixed disc is provided with an opening for access to the milling variable, which occupies for example between 20 ° and 120 ° of the circumference of the blade-holder heads 17.37.
• the removable protection 34 with disc section is pushed by an effect spring slightly against the shoe 50, thus adapting during the milling operation to the contour of this shoe 50. It is large enough to allow the milling of a shoe 50, but it is minimal and substantially less than that of the embodiment according to Figure 5, so that most of the dust generated during milling is absorbed.
• Those skilled in the art knowing the present invention can realize a wide range of different executions of such removable protections 34. He can, for example, realize a combination of the two embodiments according to Figures 10 and 11.
• the use of the cutter 16 has become much more convenient.
• the operator can work in a position ensuring optimal control of the milling of the shoe 50.
• the removable protection 34 the cutter 16 can be used without distinction by right-handers and left-handers.
• the shoe support 28 allows positioning and controlled rotary movement of the shoe 50 in front of the blade holder heads 17, 37. Unlike known strawberries, the operator can grasp the shoe in both hands, which increases the safety of the operation.
• the operator works in the frontal position relative to the cutter 16 arranged in a miniaturized work table 9 of a finisher, which also increases the field of vision and the safety of the operation compared to cutters known (at perpendicular working position).
• the operator is closer to the cutter 16, he observes the blade holder heads 17,37 at an angle with optimal fields of vision of 35 °, he can place the shoe on the shoe support and on the inclined blades of the outer blade holder head 37.
• the operator is no longer forced to work with outstretched arms, which facilitates his work.
• FIGS 12 and 13 show perspective views of a unit showing an embodiment of a brushing tool 11 with color changer 43.
• This unit 8 is mounted on three miniaturized work tables 9 with the same dimensions as the grinding and milling units according to the previous figures.
• the unit 8 can thus be crimped in the pivoting chassis of a modular finisher by screws, so that it is accessible by a miniaturized work table 9 and that several miniaturized work tables of modules are oriented according to different layout directions.
• This unit 8 can be managed by a service keyboard.
• the brushing tool 11 has a motor 14, three color brushing tools 11.1,11.2,11.3 for three different colors, respectively for brushing white, red and black shoes and it has a position changer 43.
• Each color brushing tool 11.1,11.2,11.3 is provided with several elements 40,41,42 with different handling, consisting of a polishing brush 42, a waxing brush 41, a wax applicator 40 or a cleaning brush.
• the brushes are preferably of cotton or nylon, the wax applicator 40 is preferably of natural felt 44, the accessible surface of which can be adjusted by means of a telescopic cursor 45 made of metal.
• the depth of the felt surface 44 can be continuously adjusted between 0 and 18mm.
• the brushes rotate for example at 500 revolutions / minute.
• Said telescopic cursor 45 can, for example, be moved and fixed on a rod 39, thereby increasing or decreasing the accessible surface of the felt 44 for a waxing application.
• the wax is applied to the felt 44 when the felt rotates at high speed.
• a hard wax from a wax stick is applied to the felt 44. Due to the friction force, the wax stick and the felt 44 heat up and the wax enters the felt 44.
• the wax leaves the felt 44 due to the heating of the felt 44 due to the friction force.
• the elements 40,41,42 are fixed and stopped on a rod 39 with groove 51.
• the groove 51 protects the elements 40, 41, 42 from a vacuum rotation on the space of the axis of the rod 39.
• the order and presence of the elements 40,41,42 is not compulsory. Instead of a wax applicator 40 of a little used color, a nylon cleaning brush can be attached.
• the brushing tool 11 is provided with a lamp to allow the operator good control of the brushing actuation.
• the motor 14 actuates a central rod by means of a toothed belt 52 and it simultaneously actuates the three tools for color brushing 11.1,11.2,11.3 by means of toothed belts 30 connecting the central rod to the rods 39 of each of the color brushing tools 11.1,11.2,11.3.
• the selection of a certain color brushing tool from the brushing tool 11 is carried out automatically by pressing a button on a control keyboard corresponding to a desired color.
• an electromagnetic brake 58 is uncoupled, the brushing tool 11 can rotate around its axis of change 54.
• the position changer 43 is activated and rotates the brushing tool 11 around the axis of change 54 by means of a toothed belt 55.
• the central rod and the change pin 54 are arranged for example coaxially.
• a detector detects the position of the brushing tool 11 corresponding to the brushing tool of the desired color. This detector operates for example mechanically. After detection, the detector emits a signal activating the brake 58 and stops the position changer 43. Thus a change of a color brushing tool is done without interrupting the rotation of the brushes and without stopping the motor 14.
• FIG. 14 represents a perspective and diagrammatic view of a unit showing an embodiment of a strip tape tool 29.
• This unit is mounted on a miniaturized work table 9 with the same dimensions as the units with the units brush and grind and mill according to the previous figures.
• the unit 8 can thus be crimped into the pivoting chassis of a modular finisher by screws, so that it is accessible by its miniaturized work table 9 and that several work tables with modular modules are oriented according to different layout directions.
• the glass band tool 29 is characterized by the use of two or three wheels 46 with a diameter comparable to the size of the shoes to be treated.
• a wheel 46 is driven by a motor 14, another wheel 46 serves as a grinding wheel.
• the diameter of the wheels 46 is reduced by a factor of two, maintaining the curvature of the wheels 46 corresponding to the contours of the shoes to be ground, which facilitates the grinding operation.
• the banded tool to be seen 29 shows bands of a width comparable to the size of the shoes to be treated.
• the strip to be glazed is 70mm wide.
• the striped tool to be bolted 29 is arranged on a miniaturized work table 9 so that on the left and right sides there is enough space remaining to guarantee total accessibility to the shoes.
• the strap-on tool 29 allows accessibility to the shoes both in curved regions 29.1 and in flat regions 29.2.
• a curved region 29.1 the shoe is pressed against the drive wheel 46, in a flat region 29.2, the shoe is pressed against a sheet 47.
• the strip tool to be bolted 29 coming out of the miniaturized work table 9 is provided with a left plate 29.3 and a right plate 29.4 completely covering the two sides of the space delimited by the three driving wheels 46.
• L the strip tool to be locked 29 is provided with a built-in suction device and has a suction mouth 22 arranged near the strip.

Landscapes

• Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
• Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
• Machine Tool Units (AREA)

Applications Claiming Priority (3)

Publications (1)

Family

ID=4226490

Family Applications (1)

Country Status (11)

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• 1995
  • 1995-07-03 JP JP8503595A patent/JPH09502382A/ja not_active Withdrawn
  • 1995-07-03 AU AU27308/95A patent/AU2730895A/en not_active Abandoned
  • 1995-07-03 MX MX9600704A patent/MX9600704A/es unknown
  • 1995-07-03 BR BR9506012A patent/BR9506012A/pt not_active Application Discontinuation
  • 1995-07-03 EP EP95922394A patent/EP0715500A1/fr not_active Withdrawn
  • 1995-07-03 CA CA 2169452 patent/CA2169452A1/en not_active Abandoned
  • 1995-07-03 CN CN 95190607 patent/CN1130344A/zh active Pending
  • 1995-07-03 WO PCT/CH1995/000150 patent/WO1996001062A1/fr not_active Application Discontinuation
  • 1995-07-03 PL PL95313033A patent/PL313033A1/xx unknown
  • 1995-07-03 CZ CZ96547A patent/CZ54796A3/cs unknown
  • 1995-12-05 YU YU75495A patent/YU75495A/sh unknown

Non-Patent Citations (1)

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