US3603373A - Protective cover for guide paths of machine tools - Google Patents

Protective cover for guide paths of machine tools Download PDF

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Publication number
US3603373A
US3603373A US710386A US3603373DA US3603373A US 3603373 A US3603373 A US 3603373A US 710386 A US710386 A US 710386A US 3603373D A US3603373D A US 3603373DA US 3603373 A US3603373 A US 3603373A
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United States
Prior art keywords
valve
disposed
cover
opening
cylinder
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Expired - Lifetime
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US710386A
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English (en)
Inventor
Kurt Loos
Friedrich Haschek
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Tsubaki Kabelschlepp GmbH
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Kabelschlepp GmbH
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
    • B23Q11/08—Protective coverings for parts of machine tools; Splash guards
    • B23Q11/0825—Relatively slidable coverings, e.g. telescopic

Definitions

  • ABSTRACT A protective cover for guide paths of machine Eosd /06 tools, which comprises a plurality of overlapping and telescop- 308/; ically movable cover sheets, and rolling and slide means,
  • Each of the cover sheets are supported at a front end wall by means of the rolling and slide means, respectively, on the corresponding of the guide paths and at the rear end on [56]- References cued the next smaller of the cover sheets, and a speed-reducing UNlTED STATES PATENTS braking device is disposed between the cover sheets, and 1,562,344 11/1925 LaFrance.................,... 2,280,368
  • the present invention relates to a protective cover for guide paths of machine tools, in general, and to such protective cover comprising a plurality of overlapping and telescopically movable covering sheets, whereby each of the covering sheets is supported at a front end wall with running rollers, slide members or the like on the guide path and at the rear end of the next smaller covering sheet, in particular.
  • Protective covers of this type are known in different embodiments.
  • the individual cover sheets are moved together in nonpredetermined succession after each other, from each other, and toward each other, respectively, whereby the moved cover sheets abut with nonreduced speed the still resting cover sheets and entrain the latter without transfer from the resting position.
  • the cover sheets In order that the cover sheets are not destroyed by the acceleration forces created thereby, they must have a corresponding form stability and must be equipped with fortified abutment and entraining ledges.
  • individual cover sheets of the known protective coverings have a relatively great weight and a great moment of inertia resulting directly therefrom. Accordingly, these known protective coverings can be used only up to a moving speed of about 12 to 15 m./min. In case of greater process speeds, the occurring acceleration forces cause damages upon abutment of the individual covering sheets.
  • the individual cover sheets of the protective cover should no more be pulled from each other and into each other in a merely coincidental succession, but rather always from the end in a predetermined and equalized succession.
  • the object of the present invention is achieved by a breaking device disposed between the cover sheets becoming effective during moving apart or moving together of the cover sheets short prior to the prevailing end position and reducing the maximum speed.
  • the protective covering formed in accordance with the present invention has the advantage that the starting path up to reaching the end speed is increased. By this arrangement, the maximum occurring acceleration force is reduced, so that the individual covering sheets not only endure greater passing speeds in permanent operation, but-also can be designed of lighter weight. Furthermore, the braking device disposed between the individual covering sheets removes also, in accordance with the present invention, the noise caused until now at the point of abutment.
  • the braking device is suitably disposed onthe front or rear side of the end wall and comprises at least a pneumatic or hydraulically operating buffer.
  • a pneumatic or hydraulically operating buffer can comprise, thereby, a cylinder with two return valves disposed in an end portion thereof operating in opposite directions and biased by pressure springs, a bleeding bore disposed in the cover and a piston with piston rod and headplate standing under the effect of a return spring.
  • the headplate is thereby suitably resiliently supported with an elastic pillow of synthetic material or rubber.
  • the braking device can be disposed also between the sidewalls of the cover sheets and can comprise two brake wedges secured rigidly adjacent the end wall on the inner cover sheet on the outside and also four corresponding brakeshoes secured in pairs at the outer cover sheet on the inside thereof and mounted resiliently perpendicular to the direction of movement.
  • the brakeshoes are thereby suitably guided by means of slots on bolts and mounted with their back to the cover sheet and to the guide ledge of the cover sheet against spring blades.
  • the slots in the brakeshoes can be disposed at an angle to the direction of movement, preferably at an acute angle.
  • Another braking device disposed likewise between the sidewalls of the covering sheets comprises, in a preferred embodiment, two braking rods rigidly secured adjacent the end wall on the outside of the inner cover sheet and also four cor responding brake tongs disposed on the outer cover sheet at both ends of the inner side.
  • the brake rod is suitably conically formed toward both ends and each brake tong comprises two levers swingably mounted relative to each other on an axle against pressure springs.
  • each brake tong comprises two levers swingably mounted relative to each other on an axle against pressure springs.
  • eccentrically a pressure roller on each lever whereby the smallest radius points in its unloaded state towards the brake rod. For this reason, the center of gravity of the upper pressure roller is shifted by a recess to the smallest radius, so that the latter hangs always automatically downwardly.
  • the braking device can comprise, in a further preferred embodiment, also permanent magnets or electromagnets.
  • suitably two soft iron pieces are secured spaced apart from each other at the forward and rearward ends below the outer cover sheet and a permanent magnet in between on the end wall and a console of the inner cover, respectively, whereby the South Poles of the permanent magnet points to the soft iron pieces.
  • the soft iron pieces are disposed space saving and can be rolled towards each other without any noise, they are ledgelike formed and have inclined contact faces.
  • This arrangement has the advantage that the succession in which the individual cover sheets are drawn away from each other and are moved into each other, respectively, are exactly determinable by the length of the soft iron pieces and of the permanent magnet. If the length of the soft iron pieces and of the soft iron pieces diminishes from the largest and the: smallest cover sheet, the latter are moved from each other and into each other, respectively, starting with the smallest always in the succession of their size.
  • a further preferred embodiment of the braking device of the present invention with permanent magnets resides in the fact, that at least one permanent magnet is inserted in each end wall, whereby the poles are alternately exchanged and, under circumstances, equal poles are pointing towards each other. Additionally, in this embodiment, still at least one permanent magnet each and with unequal poles can be secured in front of each end wall on a console and at the rear end below the cover sheet. If the number of these permanent magnets from the largest to the smallest cover sheet diminishes, again the advantage is brought about, that the cover sheets are moved from each other and towards each other, respectively,
  • FIG. 1 is a perspective view of the completely pulled out protective covering on a guide path for demonstration of the different braking devices with partly broken cover sheets;
  • FIG. 2 is an axial section of a pneumatically operating buffer
  • FIG. 3 is a perspective view of two covering sheets moved into each other with a friction brake disposed between the sidewalls;
  • FIG. 4a is a side elevation of two cover sheets moved into each other, whereby the sidewall of the larger cover sheet, for demonstration of a tong brake disposed between the sidewalls is partly broken away;
  • FIGS. 4b and 4c are schematic elevation of two pressure rollers of the tong brake in accordance with FIG. 4a;
  • FIGS. 5a and 5b are longitudinal sections of a plurality of cover sheets moved into each other and out of each other, respectively, with a braking device consisting of soft iron pieces and permanent magnets;
  • FIGS. 6a is a top plan view of a protective cover with a braking device comprising permanent magnets
  • FIGS. 6b and 6c are longitudinal sections of a protective covering with a braking device consisting of permanent magnets and in a position moved into each other and moved out of each other, respectively.
  • a protective covering 2 completely pulled out and consisting of five cover sheets A, B, C, D and E is shown.
  • the cover sheets A, B, C, D and E overlap relative to each other and comprise the cover sheet 3, sidewalls 4 with guides 5 angularly bent for 90 in the lower range, and a front end wall 6, 6' and 6".
  • the end wall 6 extends at both ends slightly over the cover sheet 3 and forms there abutment ledges 7. In the center between the abutment ledges 7, the end wall 6 has a recess 8, so that during movement of the cover sheets A, B, C, D and E no suction effect is created.
  • cover sheets 3 Between the cover sheets 3 sliding and stripping ledges 9 are arranged, with which the cover sheets A, B, C, D and E abut on the abutment ledges 7.
  • running rollers 10 are mounted in the end walls 6, with which the cover sheets B, C and D support themselves on the guide path 1.
  • a support 11 for instance, schematically shown in FIGS. 6a to 6c of a machine tool (not shown).
  • a supporting console 12 At the end of the guide path 1 is secured a supporting console 12, on which the last cover sheet E is arranged and over which the total protective covering 2 can be moved together.
  • Braking devices 20, 30, 40 or 50 can be provided between the cover sheets A, B, C, D and E, as it has been disclosed in connection with FIG. 1, or a braking device in accordance with FIGS. 6a, 6b and 60.
  • always only similar braking devices are disposed between the cover- I ing sheets of a protective cover 2. It is possible, however, also to combineftogether from case to case different braking devices.
  • the braking device shown in FIG. 2 is designed as a pneumatic buffer, it comprises a cylinder 21 with a division wall 21a and'a cover 21b, return valves 23 and 24 biased by pressure springs 22 and disposed adjacent the wall 21a, a piston 25 with piston rod 25a guided in the cover 21b and a headplate 25b at the free end of the piston rod 25a. Between the cover 21b and the headplate 25b is arranged a return spring 26. The head plate 25b is covered with a pillow 27 of synthetic material or rubber. Bleeding bores 28 are arranged in the cover 21b.
  • the wall 21b divides the cylinder 21 into a cylinder piston chamber 20a and a valve chamber 20b.
  • Frustoconical openings 23a and 24a opening with their wider portions towards the valve chamber 20b and the piston chamber 20a, respectively, are formed in the wall 21a and the return valves 23 and 24 are formed frustoconically to cooperate with the openings 23a and 24a.
  • Valve shanks 23b and 24b extend from the valves 23 and 24, respectively, and are slidably disposed in the valve chamber 20b and through the cylinder end wall 20d.
  • An abutment 240 is disposed on the valve shank 24c cooperating with the corresponding pressure spring 22 to bias the valve 24 cooperatively against the frustoconical opening 240 adjacent the piston chamber 20a.
  • the other pressure spring 22 is disposed about the valve shank 23b and biases the valve 23 cooperatively against the frustoconical opening 230 adjacent the valve chamber 20b.
  • the cylinder 21 has two openings 20c communicating with the valve chamber 20b.
  • the braking devices 20 are provided, as can be ascertained from FIG. 1, on the rear of the end wall 6 below the cover sheet 3 at a distance from each other. Two further braking devices 20 are secured outside of the running rollers 10 on top, in front of the abutment ledges 7.
  • the moved cover sheets A, B, C, D and E of the protective covering 2 engage the braking devices 20 on the back side of the end walls to the front side of the end walls 6 of the still resting cover sheets A, B, C, D and E.
  • D During moving out of the protective cover 2, the moved cover sheets A, B, C and D run with their slide and stripping ledges 9, which can be fortified for this purpose toward the braking devices 20.
  • the braking device 30, shown in FIG. 3, is arranged between the sidewalls 4 of the cover sheets B and C. It consists of a double-sided brake wedge 31 rigidly secured on the sidewall 4 of the inner cover sheet C on the outside within the range of the end wall 6 at the height of the centerline and four corresponding brakeshoes 34 guided in pairs on the sidewall 4 of the outer cover sheet B of the inside on bolts 32 with slots 33. Between the back of the brakeshoes 34 and the cover I sheet 3 and the guide ledge 5, respectively, spring blades 35 are arranged.
  • the slots 33 in the brakeshoes 34 are normally disposed with their longitudinal direction perpendicularly to the direction of movement. In order to reduce the clamping effect during pulling out of the brake wedges 31 from the brake split formed by the two brakeshoes 34, the longitudinal direction of the slots 33 can be disposed also at an acute angle to the direction of movement.
  • the braking device 40 disclosed in FIGS. 4a, 4b and 4c is likewise arranged again between the sidewalls 4 of the cover sheets C and D. It consists of a brake rod 41 rigidly secured close to the end wall 6 on the outside of the sidewall 4 of the inner cover sheet D on the centerline and two corresponding brake tongs 42 secured at the forward and rearward end on the inside of the sidewall of the outer cover sheet C.
  • Each of the brake tongs 42 is formed of two levers 45 swingably mounted on axles 43 against pressure springs 44. At the longer lever arm, pressure rollers 46a and 46b are eccentrically mounted above and below, respectively, the pressure springs 44.
  • the short radius of the pressure rollers 46a and 46b extends thereby into the brake split formed by the levers 45, so that both pressure rollers 46a and 46b can run on the brake rod 41.
  • the center of gravity of this upper pressure roller 46a is displaced by a recess 47 into the short radius r.
  • the levers 45 stand with the pressure rollers 46a and 46b over each other, so that the brake rod can be inserted into the wide-open tong mouth on the shorter lever arms.
  • the tong mouth is closed by the eccentrically mounted pressure rollers 46a and 46b, which are rotated by friction by the brake rod 41, at the forward end by means of the brake rod 41.
  • the tong mouth opens under the effect of the pressure springs 44 and the pressure rollers 46a and 46b oscillate due to the arrangement of the center of gravity again into their original position.
  • the braking device 50 disclosed in FIGS. 5a and 5b comprises ledgelike soft iron pieces 51 and 52 and a ledge-shaped permanent magnet 53.
  • the soft iron pieces 51 and 52 are disposed spaced apart from each other at the forward and rear end under the cover sheet 3 of the outer cover sheet C.
  • the permanent magnet 53 formed in rooflike cross section is secured on the cover sheet 3 and a console 54, respectively, of the inner cover sheet B, whereby the poles are designed such, that the South Pole is disposed on top and is arranged opposite to the soft iron pieces 51 and 52.
  • the cover sheets C and D are braked upon approaching of the permanent magnet 53 to one of the two soft iron pieces 51 and 52, whereby the braking effect is produced in dependency upon the relative speed with which the soft iron pieces and the permanent magnet approach each other, by magnetic forces and by eddy currents.
  • the soft iron pieces 51 and the permanent magnets 53 are equipped with inclined faces 55.
  • a braking device 60 which comprises substantially permanent magnets secured to the end walls 6, whereby the arrangement is chosen such that always equal poles are pointing towards each other.
  • the cover sheets A, B, C, D and E which run towards each other, are braked.
  • further permanent magnets 63 and 64 are secured in front of the end walls 6 on consoles 62 and closely behind the stripping ledges 9 below the cover sheets 3, whereby the arrangement is chosen such, that unequal poles point towards each other. If, in addition, as it appears from the top plan view in FIG.
  • the number of permanent magnets 63 and 64, starting with the next to the last cover sheet D up to the first cover sheet A, is increased, the individual cover sheets A, B, C, D and E are pulled towards each other and from each other, respectively, in a predetermined succession and in particular starting with the smallest cover sheet E.
  • the same effect can also be brought about in connection with the braking device 50 shown in FIGS. 5a and 5b, by an arrangement according to which the soft iron pieces 51 and 52 and the permanent magnets 53 starting from the smallest cover sheet E towards the greatest cover sheet A become always longer.
  • a protective cover for guide paths of machine tools comprising a plurality of overlapping and telescopically movable cover sheets
  • each of said cover sheets being supported at a front cover sheet end wall by means of said rolling and slide means, respectively, on the corresponding of said guide paths and at the rear end on the next smaller of said cover sheets,
  • a speed-reducing braking device disposed between said cover sheets and becoming effective during movement from each other and into each other shortly prior to the prevailing end position, said braking device is disposed operatively on said cover sheet end wall and comprises at least one buffer member, said buffer member is pneumatically operated, and comprises a cylinder having two return valves disposed in said cylinder, operating in opposite directions and biased by pressure springs,
  • said cylinder having a cover and at least one bleeding bore disposed in its cover
  • said buffer member comprises further a piston including a return spring and having a piston rod
  • said headplate is covered by an elastic pillow
  • one of said two return valves comprises a first valve operatively disposed adjacent said piston chamber cooperating with said first opening and includes a first valve shank extending through said valve chamber and displaceably through said cylinder end wall, and includes an abutment secured to said valve shank disposed in said valve chamber,
  • the other of said two return valves comprises a second valve operatively disposed adjacent said valve chamber cooperating with said second opening and includes a second valve shank extending through said valve chamber and displaceably through said cylinder end wall,
  • said cylinder being formed with at least one opening
  • said return spring being disposed about said piston rod outside of said cylinder and between said cover and said free end of said piston rod.
  • said second opening includes a second frustoconical opening with its smaller part facing said piston chamber
  • said first valve is frustoconical in shape and is operatively disposed in said first frustoconical opening
  • said second valve is frustoconical in shape and is operatively disposed in said second frustoconical opening.
  • said second pressure spring is compressed between said cylinder end wall and said second valve
  • said at least one opening constitutes two oppositely disposed openings communicating with said valve chamber.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Braking Arrangements (AREA)
  • Auxiliary Devices For Machine Tools (AREA)
US710386A 1967-03-04 1968-03-04 Protective cover for guide paths of machine tools Expired - Lifetime US3603373A (en)

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DE (1) DE1575522B2 (fr)
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GB (1) GB1201844A (fr)

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4039021A (en) * 1974-11-12 1977-08-02 Kabelschlepp Gesellschaft Mit Beschrankter Haftung Protective cover for guiding paths of machine tools
WO1998006536A2 (fr) * 1996-07-26 1998-02-19 Clark Jeffrey L Systeme de support telescopique
US5915897A (en) * 1997-09-16 1999-06-29 Hennig, Inc. Machine tool way cover and method of manufacturing same
US6089800A (en) * 1997-07-25 2000-07-18 P.E.I. Protezioni Elaborazioni Industriali S.R.L. Mobile protective cover for the sliding guides of machine tool parts
US6116830A (en) * 1995-12-19 2000-09-12 Renault Automation Telescopic protective shield for following the movements of a moving part
EP1253369A3 (fr) * 2001-04-27 2003-12-17 P.E.I. Protezioni Elaborazioni Industriali S.r.l. Capot de protection pour machine et équipement
EP1382416A1 (fr) * 2002-07-17 2004-01-21 P.E.I. Protezioni Elaborazioni Industriali S.r.l. Capot de protection pour machine et équipement
EP1524071A1 (fr) * 2003-10-16 2005-04-20 Fanuc Ltd Recouvrement télescopique
US20050105995A1 (en) * 2003-11-13 2005-05-19 Vantage Mobility International, Llc Internal lift for light duty motor vehicle
US20060225848A1 (en) * 2003-04-17 2006-10-12 O'rourke James D Way cover improvements
US20070119549A1 (en) * 2005-11-30 2007-05-31 Weiland William R Sliding panel interlock
US20140083244A1 (en) * 2012-09-24 2014-03-27 Okuma Corporation Protective device for sliding surface
US20140238206A1 (en) * 2013-02-26 2014-08-28 Fanuc Corporation Machine tool equipped with movable cover
CN108262641A (zh) * 2018-04-02 2018-07-10 安庆市阳光机械制造有限责任公司 一种运行平稳的机床防护罩
CN108581624A (zh) * 2018-07-28 2018-09-28 重庆宏钢数控机床有限公司 防冲击式机床内防护罩
US20220048150A1 (en) * 2018-10-23 2022-02-17 Igus Gmbh Telescopic cover for a machine tool

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1932555C3 (de) * 1969-06-27 1973-09-13 Kabelschlepp Gmbh, 5900 Siegen Schutzabdeckung für Fuhrungs bahnen von Werkzeugmaschinen
DE19717867A1 (de) * 1997-04-28 1998-10-29 Kabelschlepp Gmbh Teleskopabdeckung mit Bremseinrichtung
CN113719537A (zh) * 2021-08-03 2021-11-30 九江精密测试技术研究所 一种直线平移装置

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US1172001A (en) * 1915-06-19 1916-02-15 Edward A Baker Pneumatic bumper.
US1562344A (en) * 1923-07-11 1925-11-17 American Ship Building Company Hatch cover
US2068961A (en) * 1931-10-19 1937-01-26 Bendix Aviat Corp Clutch control mechanism
US2280368A (en) * 1939-12-29 1942-04-21 Curtiss Wright Corp Aircraft cockpit enclosure
US2375408A (en) * 1942-11-21 1945-05-08 Giddings & Lewis Machine tool
US2466913A (en) * 1945-06-26 1949-04-12 Kimball Elevator Company Ltd Multiple section door construction
DE837947C (de) * 1949-11-20 1952-05-02 Walter Theobald Abdeckung der Fuehrungsbahnen von Schlitten oder Tischen von Werkzeugmaschinen od. dgl.
DE957709C (de) * 1954-02-10 1957-02-07 Arnold Hennig Schutzabdeckung fuer die Fuehrungsbahn von hin- und hergehenden Teilen von Werkzeugmaschinen
CA555317A (fr) * 1958-04-01 E. Gibbons Paul Ferme-porte automatique au plancher
US2831448A (en) * 1953-11-17 1958-04-22 George E Suderow Hatch cover
DE1050148B (fr) * 1959-02-05
US3215426A (en) * 1963-04-08 1965-11-02 Southern Machinery Co Decelerating mechanism for loads
US3425481A (en) * 1965-10-14 1969-02-04 Kabelschlepp Gmbh Covering system for guiding paths of machine tools
US3429356A (en) * 1966-01-11 1969-02-25 Kabelschlepp Gmbh Covering means for guiding paths on machine tools

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CA555317A (fr) * 1958-04-01 E. Gibbons Paul Ferme-porte automatique au plancher
DE1050148B (fr) * 1959-02-05
US1172001A (en) * 1915-06-19 1916-02-15 Edward A Baker Pneumatic bumper.
US1562344A (en) * 1923-07-11 1925-11-17 American Ship Building Company Hatch cover
US2068961A (en) * 1931-10-19 1937-01-26 Bendix Aviat Corp Clutch control mechanism
US2280368A (en) * 1939-12-29 1942-04-21 Curtiss Wright Corp Aircraft cockpit enclosure
US2375408A (en) * 1942-11-21 1945-05-08 Giddings & Lewis Machine tool
US2466913A (en) * 1945-06-26 1949-04-12 Kimball Elevator Company Ltd Multiple section door construction
DE837947C (de) * 1949-11-20 1952-05-02 Walter Theobald Abdeckung der Fuehrungsbahnen von Schlitten oder Tischen von Werkzeugmaschinen od. dgl.
US2831448A (en) * 1953-11-17 1958-04-22 George E Suderow Hatch cover
DE957709C (de) * 1954-02-10 1957-02-07 Arnold Hennig Schutzabdeckung fuer die Fuehrungsbahn von hin- und hergehenden Teilen von Werkzeugmaschinen
US3215426A (en) * 1963-04-08 1965-11-02 Southern Machinery Co Decelerating mechanism for loads
US3425481A (en) * 1965-10-14 1969-02-04 Kabelschlepp Gmbh Covering system for guiding paths of machine tools
US3429356A (en) * 1966-01-11 1969-02-25 Kabelschlepp Gmbh Covering means for guiding paths on machine tools

Cited By (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4039021A (en) * 1974-11-12 1977-08-02 Kabelschlepp Gesellschaft Mit Beschrankter Haftung Protective cover for guiding paths of machine tools
US6116830A (en) * 1995-12-19 2000-09-12 Renault Automation Telescopic protective shield for following the movements of a moving part
WO1998006536A2 (fr) * 1996-07-26 1998-02-19 Clark Jeffrey L Systeme de support telescopique
WO1998006536A3 (fr) * 1996-07-26 1998-04-30 Clark Jeffrey L Systeme de support telescopique
US5803523A (en) * 1996-07-26 1998-09-08 Gator Ramp Systems, Inc. Extendable support system
US6089800A (en) * 1997-07-25 2000-07-18 P.E.I. Protezioni Elaborazioni Industriali S.R.L. Mobile protective cover for the sliding guides of machine tool parts
US5915897A (en) * 1997-09-16 1999-06-29 Hennig, Inc. Machine tool way cover and method of manufacturing same
EP1253369A3 (fr) * 2001-04-27 2003-12-17 P.E.I. Protezioni Elaborazioni Industriali S.r.l. Capot de protection pour machine et équipement
EP1382416A1 (fr) * 2002-07-17 2004-01-21 P.E.I. Protezioni Elaborazioni Industriali S.r.l. Capot de protection pour machine et équipement
US20040011479A1 (en) * 2002-07-17 2004-01-22 P.E.I. Protezioni Elaborazioni Industriali S.R.L. Protective covering device for machinery or equipment
US20060225848A1 (en) * 2003-04-17 2006-10-12 O'rourke James D Way cover improvements
US7341092B2 (en) * 2003-04-17 2008-03-11 A & A Mfg. Co., Inc. Way cover improvements
EP1524071A1 (fr) * 2003-10-16 2005-04-20 Fanuc Ltd Recouvrement télescopique
US7314077B2 (en) 2003-10-16 2008-01-01 Fanuc Ltd Telescopic cover
US20050082118A1 (en) * 2003-10-16 2005-04-21 Fanuc Ltd Telescopic cover
US20050105995A1 (en) * 2003-11-13 2005-05-19 Vantage Mobility International, Llc Internal lift for light duty motor vehicle
US20070119549A1 (en) * 2005-11-30 2007-05-31 Weiland William R Sliding panel interlock
US20140083244A1 (en) * 2012-09-24 2014-03-27 Okuma Corporation Protective device for sliding surface
US20140238206A1 (en) * 2013-02-26 2014-08-28 Fanuc Corporation Machine tool equipped with movable cover
CN108262641A (zh) * 2018-04-02 2018-07-10 安庆市阳光机械制造有限责任公司 一种运行平稳的机床防护罩
CN108581624A (zh) * 2018-07-28 2018-09-28 重庆宏钢数控机床有限公司 防冲击式机床内防护罩
CN108581624B (zh) * 2018-07-28 2024-03-19 重庆宏钢数控机床有限公司 防冲击式机床内防护罩
US20220048150A1 (en) * 2018-10-23 2022-02-17 Igus Gmbh Telescopic cover for a machine tool

Also Published As

Publication number Publication date
FR1555319A (fr) 1969-01-24
DE1575522B2 (de) 1971-07-15
DE1575522A1 (de) 1970-01-29
GB1201844A (en) 1970-08-12

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