EP0129658B1 - Depth-of-cut adjustment mechanism for electrically operated manual planes or the like - Google Patents

Depth-of-cut adjustment mechanism for electrically operated manual planes or the like Download PDF

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Publication number
EP0129658B1
EP0129658B1 EP84104181A EP84104181A EP0129658B1 EP 0129658 B1 EP0129658 B1 EP 0129658B1 EP 84104181 A EP84104181 A EP 84104181A EP 84104181 A EP84104181 A EP 84104181A EP 0129658 B1 EP0129658 B1 EP 0129658B1
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EP
European Patent Office
Prior art keywords
guide frame
chip thickness
plate
thickness limiter
limiter according
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.)
Expired
Application number
EP84104181A
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German (de)
French (fr)
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EP0129658A1 (en
Inventor
Otto Bergler
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.)
Eugen Lutz and Co
Black and Decker Overseas GmbH
Original Assignee
Eugen Lutz and Co
Black and Decker Overseas GmbH
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Publication date
Application filed by Eugen Lutz and Co, Black and Decker Overseas GmbH filed Critical Eugen Lutz and Co
Priority to AT84104181T priority Critical patent/ATE25829T1/en
Publication of EP0129658A1 publication Critical patent/EP0129658A1/en
Application granted granted Critical
Publication of EP0129658B1 publication Critical patent/EP0129658B1/en
Expired legal-status Critical Current

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    • 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

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  • 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)
  • Switches That Are Operated By Magnetic Or Electric Fields (AREA)
  • Endoscopes (AREA)
  • Electrophonic Musical Instruments (AREA)

Abstract

1. Chip thickness limiter for hand planes or the like which are driven by an electric motor, comprising a guide plate of which the height is adjustable and which forms the front plane sole and which is located in front of the rotating plane head or the like and which serves to rest on the workpiece, characterised in that the guide plate (5) is constructed from two adjacently disposed partial plates (13, 19), the location of which in respect of each other is adjustable by spacing holders (20, 16) which can be positioned at a right-angle to the partial plates.

Description

Die Erfindung betrifft einen Spandickenbegrenzer für elektromotorisch betriebene Handhobelgeräte o.dgl., bestehend aus einer die vordere Hobelsohle bildenden höhenverstellbaren Führungsplatte, die vor dem rotierenden Hobelkopf o.dgl. liegt und zur Anlage am Werkstück dient.The invention relates to a chip thickness limiter for hand-held planing machines or the like, consisting of a height-adjustable guide plate forming the front plane sole and the like in front of the rotating planing head. lies and serves to rest on the workpiece.

Bekannte Spandickenbegrenzer dieser Art sind über eine Verstellspindel und einen Handknopf in ihrer Höhe gegenüber dem drehbaren Hobelwerkzeug aber auch gegenüber der hinteren Hobelsohle ausrichtbar, die im allgemeinen tangential zum Flugkreisdurchmesser des Hobelwerkzeuges verläuft. Für die exakte Bearbeitung mit solchen umfangsschneidenden Werkzeugen kommtes dahersehrdarauf an, dass die jeweils die Auflageführungen des Handhobels auf dem Werkstück bildenden Führungsflächen, d.h. also die hintere Hobelsohle und die Führungsplatte mit ihren Auflageflächen parallel zueinander ausgerichtet sind. Aufgrund von Herstellungstoleranzen ist dies nicht immer der Fall. Solche toleranzbedingten Abweichungen in der Flucht der beiden Hobelsohlen werden bisher durch Nachbearbeitung, entweder durch ein Planfräsen oder ein Planschleifen behoben. Möglich ist es auch, dass bei einfacheren Geräten auf die Präzision bei der Bearbeitung verzichtet wird.Known chip thickness limiters of this type can be aligned via an adjusting spindle and a hand knob in their height with respect to the rotatable planing tool, but also with respect to the rear plane sole, which generally extends tangentially to the flight circle diameter of the planing tool. For the exact machining with such circumferential cutting tools, it is very important that the respective guide surfaces forming the support guides of the planer on the workpiece, i.e. So the rear plane sole and the guide plate with their contact surfaces are aligned parallel to each other. Due to manufacturing tolerances, this is not always the case. Such tolerance-related deviations in the alignment of the two planing soles have so far been remedied by reworking, either by face milling or face grinding. It is also possible that the precision of machining is dispensed with in the case of simpler devices.

Die Erfindung liegt die Aufgabe zugrunde, einen Spandickenbegrenzer der eingangs genannten Art zu schaffen, mit dem in einfacher Weise ein Ausrichten der vorderen und der hinteren Hobelsohle ohne zusätzliche Bearbeitung möglich ist.The invention has for its object to provide a chip thickness limiter of the type mentioned, with which an alignment of the front and rear plane sole is possible in a simple manner without additional processing.

Die Erfindung besteht darin, dass die Führungsplatte aus zwei aneinanderliegenden Teilplatten aufgebaut ist, deren Lage zueinander durch an mindestens drei Stellen angeordnete und senkrecht zu den Teilplatten verstellbare Abstandshalter einstellbar ist. Durch diese Ausgestaltung wird die Lage der unteren, die Auflagefläche bildenden Hobelsohle der Führungsplatte des Spandickenbegrenzers unabhängig von Einbautoleranzen der Führungsplatte und deren Höhenverstelleinrichtung. Die Auflagefläche selbst lässt sich auch nachträglich noch in relativ einfacher Weise zu der hinteren Hobelsohle ausrichten.The invention consists in the fact that the guide plate is constructed from two adjoining partial plates, the position of which relative to one another can be adjusted by means of spacers which are arranged in at least three places and adjustable perpendicular to the partial plates. This configuration makes the position of the lower plane of the plane of the guide plate of the chip thickness limiter, which forms the contact surface, independent of the installation tolerances of the guide plate and its height adjustment device. The support surface itself can also be aligned to the rear plane sole in a relatively simple manner.

Vorteilhaft ist es, wenn die vom Werkstück abgewandte erste Teilplatte als ein Führungsrahmen ausgebildet ist, an dem die zweite Teilplatte mit verstellbaren Anschlägen gehalten ist, die durch Öffnungen in dem Führungsrahmen durchgreifen und wenn die Abstandshalter als von der zweiten Teilplatte aus gegen den Führungsrahmen gedrückte Stellschrauben ausgebildet sind. Die Anschläge können zweckmässig Klemmschrauben sein, die von der freien Seite des Führungsrahmens aus betätigbar sind, wobei diese Klemmschrauben durch Langlöcher in Führungsrahmen ragen und die zweite Teilplatte eine in Richtung dieser Langlöcher gegenüber dem Führungsrahmen verstellbare Auflageplatte ist. Diese Ausgestaltung lässt eine gewisse Beweglichkeit zwischen Führungsrahmen und Auflageplatte zu. Die Stellschrauben von der freien Seite der Auflageplatte aus betätigbar sind, d.h. also von der Hobelsohle aus, was bei versenkten Schraubköpfen ohne weiteres möglich, dann ergibt sich der Vorteil, dass die Lage der Auflageplatte in sehr einfacher Weise justiert werden kann.It is advantageous if the first partial plate facing away from the workpiece is designed as a guide frame on which the second partial plate is held with adjustable stops which extend through openings in the guide frame and if the spacers are set screws pressed against the guide frame from the second partial plate are trained. The stops can expediently be clamping screws which can be actuated from the free side of the guide frame, these clamping screws protruding through elongated holes in the guide frame and the second partial plate being a support plate which is adjustable in the direction of these elongated holes with respect to the guide frame. This configuration allows a certain mobility between the guide frame and the support plate. The set screws can be operated from the free side of the platen, i.e. So from the plane sole, which is easily possible with recessed screw heads, there is the advantage that the position of the support plate can be adjusted in a very simple manner.

Bei Ausführungsformen, bei denen die Auflageplatte gegenüber dem Führungsrahmen in Längsrichtung verschiebbar sein soll, wie das bei besonderen Bauarten von Handhobeln für Profilarbeiten zweckmässig und schon vorgeschlagen ist, kann in sehr einfacher Weise vorgesehen sein, dass die Stellschrauben mit einem zum Führungsrahmen hin gerichteten Hohlraum zur Aufnahme einer Kugel versehen sind. Am Führungsrahmen können dann zur Führung dieser Kugeln Nuten angeordnet werden, deren Querschnitt dem Kugeldurchmesser angepasst ist und die in Richtung der Langlöcher verlaufen, durch die die Klemmschrauben ragen.In embodiments in which the support plate is to be displaceable in the longitudinal direction relative to the guide frame, as is expedient and already proposed for special types of hand planes for profile work, it can be provided in a very simple manner that the set screws are provided with a cavity directed towards the guide frame Recording a ball are provided. Grooves can then be arranged on the guide frame for guiding these balls, the cross-section of which is adapted to the ball diameter and which run in the direction of the elongated holes through which the clamping screws protrude.

In der Zeichnung ist die Erfindung anhand von einem Ausführungsbeispiel dargestellt und in der nachfolgenden Beschreibung erläutert. Es zeigen:

  • Fig. 1 eine schematische Seitenansicht eines mit dem neuen Spandickenbegrenzer ausgerüsteten elektromotorisch angetriebenen Handhobelgerätes,
  • Fig. 2 einen Teilschnitt durch die höhen- und längsverstellbare Lagerung des Spandickenbegrenzers des Hobels der Fig. 1,
  • Fig. 3 eine Draufsicht auf den Spandickenbegrenzer der Fig. 2 und
  • Fig. 4 einen Teilschnitt durch die Fig. 3 längs der Linie IV.
In the drawing, the invention is illustrated using an exemplary embodiment and explained in the following description. Show it:
  • 1 is a schematic side view of an electric motor-driven hand planer equipped with the new chip thickness limiter,
  • 2 shows a partial section through the height and length adjustable mounting of the chip thickness limiter of the plane of FIG. 1,
  • Fig. 3 is a plan view of the chip thickness limiter of Fig. 2 and
  • Fig. 4 is a partial section through Fig. 3 along the line IV.

Der in den Figuren dargestellte Handhobel 1 besteht in an sich bekannter Weise aus einem Aufnahmegehäuse für einen Elektromotor, der über ein Getriebe einen Hobelkopf antreibt, dessen unterer Umfangsbereich in eine Öffnung zwischen der Hinterkante 4 einer Führungsplatte 5 und der Vorderkante 6 der hinteren Hobelsohle 7 hereinragen. Die Führungsplatte 5 ist Teil des Spandickenbegrenzers, der als Ganzes mit dem Bezugszeichen 8 versehen ist. Die Führungsplatte 5 ist über eine Schraubspindel 9, die aus den Fig. 2 und 3 ersichtlich ist, über einen Handknopf 10 höhenverstellbar. Damit kann in bekannter Weise die Spandicke eingestellt werden, die vom Hobelkopf bzw. von dessen am Umfang angeordneten Messern beim Bearbeitungsvorgang abgehoben werden soll. Die hintere Hobelsohle 7 ist, wie ebenfalls bekannt, mit ihrer Auflagefläche 7a tangential zum Flugkreis 11 des Hobelköpfes 3 angeordnet. Die Führungsplatte 5 bzw. deren Auflagefläche 5a wird zur Einstellung der Spandicke entsprechend in der Höhe verstellt.The planer 1 shown in the figures consists, in a manner known per se, of a receiving housing for an electric motor which drives a planing head via a gear mechanism, the lower peripheral region of which protrude into an opening between the rear edge 4 of a guide plate 5 and the front edge 6 of the rear plane sole 7 . The guide plate 5 is part of the chip thickness limiter, which is provided as a whole with the reference number 8. The guide plate 5 can be adjusted in height by means of a screw spindle 9, which can be seen in FIGS. 2 and 3, by means of a hand button 10. In this way, the chip thickness can be set in a known manner, which is to be lifted from the planing head or from its knives arranged on the circumference during the machining process. The rear plane sole 7 is, as is also known, arranged with its bearing surface 7a tangential to the flight circle 11 of the planer head 3. The height of the guide plate 5 or its supporting surface 5a is adjusted accordingly to adjust the chip thickness.

Da für diesen Hobelvorgang und für die Genauigkeit der Bearbeitung die untere Auflagefläche 5a der Führungsplatte 5 und die Auflagefläche 7a der hinteren Hobelsohle 7 genau parallel zueinander stehen müssen, dies aber aufgrund von Herstellungstoleranzen und der Lagerung der Führungsplatte 5 am Gehäuse 2 nicht immer der Fall ist, wird die aus den Fig. 2, 3 und 4 ersichtliche Ausgestaltung der Führungsplatte 5 getroffen.Since for this planing process and for the accuracy of machining, the lower contact surface 5a of the guide plate 5 and the contact surface 7a of the rear plane sole 7 must be exactly parallel to one another, but this is not always the case due to manufacturing tolerances and the mounting of the guide plate 5 on the housing 2 , The configuration of the guide plate 5 shown in FIGS. 2, 3 and 4 is taken.

Wie aus den Fig. 2 und 3 zu erkennen ist, ist die Führungsplatte 5 aus zwei aneinanderliegenden Teilen aufgebaut. Die Führungsplatte 5 besteht nämlich aus einem der Höhenverstelleinrichtung 12 mit der Spindel 9 zugeordneten Führungsrahmen 13, der vier symmetrisch zur Mittellängsebene 14 angeordnete Langlöcher 1 5 aufweist, in die von oben vier Klemmschrauben 16 mit einem die Seitenkanten der Langlöcher 15 überdeckenden Kopf 16a durchgeführt sind. Möglich ist auch, wie Fig. 3 zu entnehmen ist, die Anordnung von Unterlegscheiben 17. Diese Klemmschrauben 16 greifen in ein Gewinde 18 einer Auflageplatte 19 ein, welche durch die in den Langlöchern 15 geführten Klemmschrauben 16 mit dem Führungsrahmen 13 so verbunden ist, dass dessen untere Fläche 13a, welche somit einen Teil der Führungsplatte 5 bildet, an der Auflageplatte 19 anliegt.As can be seen from FIGS. 2 and 3, the guide plate 5 is constructed from two parts lying against one another. The guide plate 5 consists namely of a guide frame 13 assigned to the height adjustment device 12 with the spindle 9, the four guide frame 13 being arranged symmetrically to the central longitudinal plane 14 Nete elongated holes 1 5, in which four clamping screws 16 are carried out with a head 16a covering the side edges of the elongated holes 15 from above. It is also possible, as can be seen in FIG. 3, the arrangement of washers 17. These clamping screws 16 engage in a thread 18 of a support plate 19 which is connected to the guide frame 13 by the clamping screws 16 guided in the elongated holes 15 whose lower surface 13a, which thus forms part of the guide plate 5, rests on the support plate 19.

Um die Lage der Auflageplatte 19 gegenüber der Unterseite 13a des Führungsrahmens 13 verstellen zu können, sind, wie aus den Fig. 3 und 4 hervorgeht, von der Unterseite der Auflageplatte 19 aus Verstellschrauben 20 jeweils in Gewindebohrungen 21 der Auflageplatte 19 eingeschraubt, die an ihrem von der Auflagefläche 5a abgewandten Seite mit einem Hohlraum zur Aufnahme einer Kugel 23 versehen sind. Die mit einem Betätigungsschlitz 20a versehene Seite der Verstellschrauben 20 ist vollkommen in der Gewindebohrung 21 versenkt angeordnet, so dass eine glatte Auflagefläche 5a beibehalten werden kann. Die Kugeln 23 werden jeweils in Längsnuten 24 am Führungsrahmen 13 geführt, die es ebenso wie die Langlöcher 15 ermöglichen, dass die Auflageplatte 19 über eine Gewindespindel 25, die von einem Handrad 26 aus betätigt wird, in Richtung der Längsmittelebene zum Führungsrahmen 13 verschoben wird, ohne dass jedoch die Lageneinstellung der Auflageplatte 19, die über die Verstellschrauben 20 vorgenommen wurde, gegenüber der Hobelsohle 7 bei einer solchen Verschiebung verändert wird. Beim Ausführungsbeispiel sind sowohl vier Klemmschrauben 16 als auch vier Verstellschrauben 20 vorgesehen. Zur Verstellung der Auflageplatte 19 gegenüber dem Führungsrahmen 13 können aber auch nur drei Verstellschrauben 20 genügen, mit deren Hilfe ebenfalls eine räumliche Lageveränderung der Auflageplatte 19 gegenüber dem Führungsrahmen 13 möglich ist.In order to be able to adjust the position of the support plate 19 relative to the underside 13a of the guide frame 13, as can be seen from FIGS. 3 and 4, adjustment screws 20 are screwed into threaded holes 21 of the support plate 19 from the underside of the support plate 19, which are attached to their are provided with a cavity for receiving a ball 23 from the side facing away from the support surface 5a. The side of the adjusting screws 20 which is provided with an actuating slot 20a is arranged completely recessed in the threaded bore 21, so that a smooth contact surface 5a can be maintained. The balls 23 are each guided in longitudinal grooves 24 on the guide frame 13, which, like the elongated holes 15, enable the support plate 19 to be displaced in the direction of the longitudinal center plane to the guide frame 13 by means of a threaded spindle 25, which is actuated by a handwheel 26, without, however, changing the position of the support plate 19, which was made via the adjusting screws 20, relative to the plane sole 7 during such a shift. In the exemplary embodiment, both four clamping screws 16 and four adjusting screws 20 are provided. To adjust the support plate 19 relative to the guide frame 13, however, only three adjusting screws 20 can suffice, with the aid of which a spatial change in position of the support plate 19 relative to the guide frame 13 is also possible.

Claims (8)

1. Chip thickness limiter for hand planes or the like which are driven by an electric motor, comprising a guide plate of which the height is adjustable and which forms the front plane sole and which is located in front of the rotating plane head or the like and which serves to rest on the workpiece, characterised in that the guide plate (5) is constructed from two adjacently disposed partial plates (13, 19), the location of which in respect of each other is adjustable by spacing holders (20, 16) which can be positioned at a right-angle to the partial plates.
2. Chip thickness limiter according to claim 1, characterised in that spacing holders (20, 16) are provided at at least three locations.
3. Chip thickness limiter according to claims 1 and 2, characterised in that the first partial plate which is remote from the workpiece is constructed as a guide frame (13) on which the second partial plate (19) is supported by adjustable abutments (16) which engage through apertures (15) in the guide frame (13) and in that the spacing holders are constructed as setscrews (20) pressed against the guide frame (13) by the second partial plate (19).
4. Chip thickness limiter according to claims 1 to 3, characterised in that the abutments are clamping screws (16) which can be actuated from the free side of the guide frame (13).
5. Chip thickness limiter according to claim 4, characterised in that the clamping screws (16) project through elongated holes (15) in the guide frame (13) and in that the second partial plate is a support plate (19) adjustable in the direction of these elongated holes (15) and in relation to the guide frame (13).
6. Chip thickness limiter according to claim 3, characterised in that the setscrews (20) can be actuated from the free side of the support plate (19).
7. Chip thickness limiter according to claims 5 and 6, characterised in that the setscrews (20) are provided with a cavity (22) directed towards the guide frame (13) and intended to accommodate a ball (23).
8. Chip thickness limiter according to claim 7, characterised in that there are on the guide frame (13) for guiding the balls (23) grooves (24) the cross-section of which is adapted to the ball diameter, and which extend in the direction of the elongated holes (15), through which the clamping screws (16) project.
EP84104181A 1983-06-25 1984-04-13 Depth-of-cut adjustment mechanism for electrically operated manual planes or the like Expired EP0129658B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT84104181T ATE25829T1 (en) 1983-06-25 1984-04-13 CHIP THICKNESS LIMITER FOR ELECTRIC MOTOR OPERATED HAND PLANERS OR THE LIKE.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3322962A DE3322962C2 (en) 1983-06-25 1983-06-25 Chip thickness limiter for electric motor-operated hand planers or the like.
DE3322962 1983-06-25

Publications (2)

Publication Number Publication Date
EP0129658A1 EP0129658A1 (en) 1985-01-02
EP0129658B1 true EP0129658B1 (en) 1987-03-11

Family

ID=6202412

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84104181A Expired EP0129658B1 (en) 1983-06-25 1984-04-13 Depth-of-cut adjustment mechanism for electrically operated manual planes or the like

Country Status (3)

Country Link
EP (1) EP0129658B1 (en)
AT (1) ATE25829T1 (en)
DE (2) DE3322962C2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3542095A1 (en) * 1985-11-28 1987-06-04 Festo Kg Portable planer

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB452673A (en) * 1935-05-20 1936-08-27 Victor Wranek Improvement relating to carpenters' wooden planes
US3407857A (en) * 1966-12-30 1968-10-29 Rockwell Mfg Co Plane
DE2141585C2 (en) * 1971-08-19 1982-04-29 Karl M. Reich Maschinenfabrik Gmbh, 7440 Nuertingen Hand-held power planing tool - has slide foot with upward tubular projection guided with adjustable force along three lines of contact
DE2141584A1 (en) * 1971-08-19 1973-03-01 Reich Maschf Gmbh Karl HOUSING FOR HAND MACHINE
DE7934812U1 (en) * 1979-12-11 1981-05-27 Robert Bosch Gmbh, 7000 Stuttgart Electric motor-driven planer that can be operated by hand

Also Published As

Publication number Publication date
ATE25829T1 (en) 1987-03-15
DE3462587D1 (en) 1987-04-16
DE3322962C2 (en) 1986-01-09
DE3322962A1 (en) 1985-01-10
EP0129658A1 (en) 1985-01-02

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