EP0045730A2 - Raboteuse électrique à main - Google Patents

Raboteuse électrique à main Download PDF

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Publication number
EP0045730A2
EP0045730A2 EP81850129A EP81850129A EP0045730A2 EP 0045730 A2 EP0045730 A2 EP 0045730A2 EP 81850129 A EP81850129 A EP 81850129A EP 81850129 A EP81850129 A EP 81850129A EP 0045730 A2 EP0045730 A2 EP 0045730A2
Authority
EP
European Patent Office
Prior art keywords
cutter
plane
lateral
angle
hand
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP81850129A
Other languages
German (de)
English (en)
Other versions
EP0045730A3 (fr
Inventor
Gunnar Harry Lindkvist
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of EP0045730A2 publication Critical patent/EP0045730A2/fr
Publication of EP0045730A3 publication Critical patent/EP0045730A3/fr
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27C—PLANING, DRILLING, MILLING, TURNING OR UNIVERSAL MACHINES FOR WOOD OR SIMILAR MATERIAL
    • B27C1/00—Machines for producing flat surfaces, e.g. by rotary cutters; Equipment therefor
    • B27C1/10—Hand planes equipped with power-driven cutter blocks

Definitions

  • the present invention relates to an electric hand plane comprising a frame, a rotatably mounted cutter with at least one planing tool and with a driving member at one end of the cutter, and an electric motor carried by the frame and which, via a drive arrangement, drives the driving member and thereby the cutter, the hand plane having a main support surface which defines a main working plane tangent to the planing tool in its working position, the cutter being conical with the cutter spindle forming an angle with the working plane corresponding to half the angle of the cone.
  • a plane of this type is known through West German Utility Model publication G 78 33 580.
  • This publication shows a plane having a conical cutter supported at its smaller end. Rabbeting may be carried out with the larger cutter end.
  • the purpose of the present invention is to avoid the above disadvantages and provide a hand plane whose conical cutter is sturdily supported while still allowing unlimited depth of cut.
  • this is achieved with a hand plane in which the cutter is supported in the frame at both its ends in such a way that at the larger cutter end all parts of the hand plane, i.e. the cutter as well as the bearing and those parts of the frame which support the cutter spindle at the larger cutter end, are located to one and the same side of the lateral plane perpendicular to the main working plane and touching the larger cutter end at the point thereof lying closest to the main working plane.
  • a lateral support is pivotally jointed to the plane frame about a pivot axis extending next to the main working plane at the larger end of the cutter and perpendicular to the cutter spindle, the angle of said lateral support relative to the lateral plane being adjustable with setting means for setting the angle between the main working plane and a secondary working plane formed by the lateral support.
  • the cone angle and the height of the hand plane can be kept relatively small if the driving member of the cutter is placed at the end of the cutter opposite to the lateral plane. Then the cone angle only needs to be large enough to create sufficient axial space at the cutter end of larger diameter for bearing, but not driving, the cutter.
  • the cutter is preferably belt-driven even if other drive means are conceivable, for example via chains or gears.
  • the larger cutter end is provided with lateral planing tools, which are preferably adjustably mounted on the cutter so that their cutting angle can be set at an angle to a plane normal to the cutter spindle. This permits easy planing of dove-tail grooves, for example.
  • the hand plane has a frame 1 the flat bottom surface 2 of which forms its main working plane.
  • the rear portion of the hand plane as seen to the left in Figs. 1 and 2 has a handle 3 upright from the frame 1, with a switch 4.
  • This switch operates an electric motor 5 fixed to the frame 1, and which has a belt pulley 6, not shown in more detail here, on the left-hand side of the hand plane.
  • the electric motor 5 drives a belt pulley 8 which is non-rotatably mounted on one end of a spindle 9.
  • the spindle 9 is mounted in the frame 1 with a ball bearing 10 next to the belt pulley 8.
  • the spindle 9 is mounted by means of a ball bearing 11 in a bracket 12 screwed securely to the frame 1 and which is made with a bearing seat 13 for the bearing 11.
  • the seat 13 is sealed against dust by means of a cover 14 which is held in place by a lock ring 15 in the outer portion of the seat.
  • the cover 14 also holds the outer ring of the bearing 11 in contact with the bottom of the seat 13.
  • the spindle 9 carries a cutter 16 non-rotatably joined thereto.
  • the cutter 16 is conical with a cone angle 2a with its narrower end at the left-hand bearing 10.
  • the right-hand end of the cutter 16 has a larger diameter and has a central axial recess 16a, which encloses the bearing seat 13 and part of the bracket 12.
  • the parts of the bracket 12 located outside the end of the cutter 16 have small axial dimensions.
  • the cutter 16 is provided with two diametrically disposed planing tools 17 removably mounted in the cone surface.
  • the spindle 9 is arranged at an angle a to the bottom surface 2 of the frame. This angle a corresponds to half the cone angle 2a, so that the planing tools 17 in their bottom positions will make contact along their entire length with the working plane defined by the bottom surface 2.
  • the ends of the planing tools 17 at the wider end of the cutter will lie laterally outside the bearing 11 and the bearing seat 13 when in the lower position, i.e. in the working plane.
  • the entire cutter and its bearings, as well as all the other parts of the hand plane, thus lie on the same side of a lateral plane 18 which is perpendicular both to the working plane 2 and to the orthogonal projection of the cutter spindle 9 onto the working plane, and which is tangent to the wider end of the cutter 16 at the working plane 2.
  • the hand plane is provided with an adjustable lateral support in the form of a flat plate 19 which is pivotally hinged 20 to the frame 1, Fig. 4.
  • the axis of the hinge 20 runs parallel to the working plane 2 and perpendicular to the cutter spindle 9. The axis is located as close to the intersection of the planes 2 and 18 as possible.
  • the plate 19 is swingably jointed 21 at its top with one end of a threaded pin 22, the opposite end of which can be screwed into a threaded hole in an ear 23 projecting upright from the frame 1.
  • a wheel 24 non-rotatably fixed to the pin, the pin 22 can be screwed in or out of the ear 23, thereby swinging the plate 19 about the hinge 20.
  • the plate 19 in the maximum swung-in position, in which the support surface formed by the plate forms an acute angle with the main working plane 2.
  • the plate 19 forms a right angle with the main working plane 2, its supporting surface lies in the lateral plane 18.
  • the plate 19 can also be set at an obtuse angle with the main working plane 2.
  • the cutter 16 is provided at its wider end with two lateral planing tools 25 arranged in cavities 26 in the end of the cutter.
  • Each tool 25 has the shape of a circular sector of less than 90°, the edge 27 being formed by a radial limitation and lying next to the end of the cutter.
  • the tool 25 has an arcuate slot 28 through which a lock screw 29 projects with a loose fit.
  • the tool 25 has a slot which is essentially parallel with the edge 27, through which the head of an excentric screw 31 pro- jetcs.
  • the arcuate periphery of the tool 25 and the facing, arcuate wall 32 of the cavity 26 are provided with notches 33 and 34 respectively, which make it possible to set the tools 25 as according to the following.
  • the tool 25 can be swung about its excentric screw head 31, so that the angle of the edge 27 to the cutter spindle 9 can be changed.
  • the setting can be done with a screwdriver which is inserted into a suitable pair of notches 33/34 and turned.
  • the outer tip of the tool 25 can be set with the aid of the excentric screw 31 so that it is in the end plane of the cutter 16 or at a desired distance therefrom, for example if the main tool 17 extends outside the end plane.
  • the inside of the bracket 12 is made with sufficient space next to the end of the cutter for the projecting tools 25 if they are set at an obtuse angle to the main working plane 2 (the tools 17).
  • the plane frame 1 In front of the cutter 16, the plane frame 1 is provided with a chip discharge duct 35.
  • the hand plane has a vertically adjustable support plate 36 in front of the cutter 16.
  • the vertical position of the support plate 36 is adjustable with a knob 37 which is arranged on the top of the forward portion of the frame 1, serving at the same time as a forward handle.
  • planing is done by gripping the handles 3 and 37 and pressing in the switch 4, and moving the plane forward by hand with the flat underside of the support plate 36 in contact with the workpiece.
  • the cutter 16 shaves off the outer layer of the work piece down to the level of the bottom surface 2.
  • planing can be done right up to a wall or the like standing upright from the workpiece.
  • the knob 24 With the knob 24, the plate 19 can be set at the desired angle for contact with the wall. This feature also enables the hand plane to be used for rabbeting with unlimited depth of groove. Furthermore, it is possible to place the hand plane with the plate 19 resting against the surface to be planed if it has locally projecting portions, for example.
  • lateral walls can also be planed.
  • Various forms of surfaces or grooves can be achieved by a suitable combination of angle and projection of the lateral tools 25, angle of the lateral support plate 19 and height of the support plate 36.
  • Fig. 4 shows a setting with the edges of the lateral tools 25 parallel with the end of the cutter and the lateral support plate 19 at the smallest angle to the working plane 2.
  • the hand plane can be used to plane dove-tail grooves.
  • the lateral support 19 is set at an angle of less than 90°, as shown in Fig. 4, the lateral walls can be only so high that the lateral wall extends up to the side 38 lying outside the lateral support 19. This side 38 lies at a distance b inside the side plane 18 (see also Fig. 3).
  • the planing tools 17 and 25 can be changed from below or from the side respectively, without removing the cutter 16 from the frame. If the cutter 16 should need to be removed, this is done simply by loosening the fastening screws for the bracket 12, and pulling the bracket 12 with the spindle 9 and the cutter 16 out of the frame 1, by virtue of the fact that the ball bearing 10 can be pulled out of its seat in the frame 1.
  • the drive belt 7 must then first be removed from the belt pulley'8, which is of smaller diameter than the ball bearing 10 and thus can pass through the frame 1. Alternatively, the belt pulley 8 can first be removed.
  • the axial position of the cutter 16 is defined in relation to the bracket 12 and thus in relation to the lateral plane 18. This is achieved by the cutter 16 being axially fixed on the spindle 9 which is in turn held axially fixed by the bearing 11 with the aid of an intermediate ring 39 and a lock ring 40 on opposite sides of the inner ring of the ball bearing 11. Said bearing 11 is in turn held fixed in the bracket 12 by the cover 14.
  • hand plane For safety, the hand plane must also be equipped with hand protectors. For the sake of clarity, these have not been shown in the drawings.
  • the drive means of the cutter is placed at the thin end of the cutter.
  • the cutter can be driven at its wider end.
  • the cone angle should be larger to provide a sufficiently large lateral space for the belt pulley without having to increase the cutter diameter too much.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Milling, Drilling, And Turning Of Wood (AREA)
EP81850129A 1980-08-05 1981-07-24 Raboteuse électrique à main Withdrawn EP0045730A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE8005553A SE421506B (sv) 1980-08-05 1980-08-05 Elektrisk handhyvel
SE8005553 1980-08-05

Publications (2)

Publication Number Publication Date
EP0045730A2 true EP0045730A2 (fr) 1982-02-10
EP0045730A3 EP0045730A3 (fr) 1982-09-15

Family

ID=20341520

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81850129A Withdrawn EP0045730A3 (fr) 1980-08-05 1981-07-24 Raboteuse électrique à main

Country Status (2)

Country Link
EP (1) EP0045730A3 (fr)
SE (1) SE421506B (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0492736A1 (fr) * 1990-12-21 1992-07-01 Emerson Electric Co. Raboteuse avec montage de palier amélioré
DE4212293A1 (de) * 1992-04-11 1993-10-14 Metabowerke Kg Handhobelmaschine
EP0618052A1 (fr) * 1993-03-30 1994-10-05 Festo KG Raboteuse à main

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH297501A (fr) * 1952-03-02 1954-03-31 Metap S A Machine portative à moteur pour le travail du bois.
DE1229708B (de) * 1955-04-19 1966-12-01 Karl Gold Rotierendes Schneidwerkzeug
FR1520140A (fr) * 1967-04-21 1968-04-05 Scheer & Cie C F Raboteuse à main
US4064920A (en) * 1976-10-21 1977-12-27 Ernest Piche Tenon cutting machine with cutting head
DE7833580U1 (de) * 1979-06-21 Holder, Ernst, 8200 Rosenheim Handhobelmaschine

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE7833580U1 (de) * 1979-06-21 Holder, Ernst, 8200 Rosenheim Handhobelmaschine
CH297501A (fr) * 1952-03-02 1954-03-31 Metap S A Machine portative à moteur pour le travail du bois.
DE1229708B (de) * 1955-04-19 1966-12-01 Karl Gold Rotierendes Schneidwerkzeug
FR1520140A (fr) * 1967-04-21 1968-04-05 Scheer & Cie C F Raboteuse à main
US4064920A (en) * 1976-10-21 1977-12-27 Ernest Piche Tenon cutting machine with cutting head

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0492736A1 (fr) * 1990-12-21 1992-07-01 Emerson Electric Co. Raboteuse avec montage de palier amélioré
US5213457A (en) * 1990-12-21 1993-05-25 Emerson Electric Co. Planer with improved bearing mounting
DE4212293A1 (de) * 1992-04-11 1993-10-14 Metabowerke Kg Handhobelmaschine
EP0618052A1 (fr) * 1993-03-30 1994-10-05 Festo KG Raboteuse à main

Also Published As

Publication number Publication date
SE421506B (sv) 1982-01-04
EP0045730A3 (fr) 1982-09-15

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Effective date: 19830822