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EP0734822B1 - Wall grooving device - Google Patents

Wall grooving device Download PDF

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Publication number
EP0734822B1
EP0734822B1 EP96810078A EP96810078A EP0734822B1 EP 0734822 B1 EP0734822 B1 EP 0734822B1 EP 96810078 A EP96810078 A EP 96810078A EP 96810078 A EP96810078 A EP 96810078A EP 0734822 B1 EP0734822 B1 EP 0734822B1
Authority
EP
European Patent Office
Prior art keywords
housing
stop
locking
pawl
depth stop
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 - Lifetime
Application number
EP96810078A
Other languages
German (de)
French (fr)
Other versions
EP0734822A3 (en
EP0734822A2 (en
Inventor
Hans Rupprecht
Armin Below
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.)
Hilti AG
Original Assignee
Hilti AG
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 Hilti AG filed Critical Hilti AG
Publication of EP0734822A2 publication Critical patent/EP0734822A2/en
Publication of EP0734822A3 publication Critical patent/EP0734822A3/en
Application granted granted Critical
Publication of EP0734822B1 publication Critical patent/EP0734822B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28D—WORKING STONE OR STONE-LIKE MATERIALS
    • B28D1/00—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor
    • B28D1/02—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by sawing
    • B28D1/04—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by sawing with circular or cylindrical saw-blades or saw-discs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27B—SAWS FOR WOOD OR SIMILAR MATERIAL; COMPONENTS OR ACCESSORIES THEREFOR
    • B27B9/00—Portable power-driven circular saws for manual operation
    • B27B9/02—Arrangements for adjusting the cutting depth or the amount of tilting
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28D—WORKING STONE OR STONE-LIKE MATERIALS
    • B28D1/00—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor
    • B28D1/02—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by sawing
    • B28D1/04—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by sawing with circular or cylindrical saw-blades or saw-discs
    • B28D1/045—Sawing grooves in walls; sawing stones from rocks; sawing machines movable on the stones to be cut
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28D—WORKING STONE OR STONE-LIKE MATERIALS
    • B28D1/00—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor
    • B28D1/18—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by milling, e.g. channelling by means of milling tools
    • B28D1/183—Hand tools, e.g. portable, motor driven

Definitions

  • the invention relates to a wall slot device with a two handles Housing, which is a drive unit for a consisting of at least one disc Includes slot tool and versus a slide around one in its first End area arranged pivot bearing against the force of a spring parallel to Disc plane of the slot tool is pivotable, the slide in its second end region protruding towards the housing, the inclusion of a adjustable depth stop serving locking rail and the housing one with the locking rail cooperating pawl, which from one one of the handles arranged locking switch can be actuated,
  • From DE-A-38 15 245 is a wall slot device with a housing, one with the Housing-connected drive unit for a from at least one disc existing slot tool and a slide known.
  • the housing takes an oblique position with respect to the slide, so that The slot tool does not apply to the side of the slide lying on a surface surmounted.
  • the housing is parallel to the disk plane of the slot tool by an in a rotary bearing arranged against a first end region of the slide Spring element pivotable into a working position, limiting the Swiveling movement between the housing and the slide in the direction of the slide Locking rail protruding from the housing with its free end on a locking tongue a pawl arranged in the housing rests.
  • This pawl is with an in a handle arranged locking switch connected to the one when pressed Rotate this pawl about its longitudinal axis and thus also the locking tongue caused against the force of a spring part. When you release the lock switch the pawl turns back to its original position.
  • On the locking rail is a depth stop arranged in stages along the locking rail is adjustable.
  • the invention has for its object to provide a wall slot device with a Fatigue-free, simple and safe production of slots with constant Depth in underground, especially masonry, is possible.
  • the object is achieved in that the depth stop on the Pawl can be fixed.
  • the housing is opposite Carriage and thus also pivoted relative to the locking rail. As soon as that If the housing comes into contact with the depth stop, the Depth stop on the pawl of the housing. Lifting the case off the depth stop is no longer possible, although that between the housing and the slide arranged spring is under tension. The feather outgoing force therefore does not have to be additional during the slitting process be applied.
  • the housing is conveniently fixed to the depth stop with Help with the depth stop, which protrudes in the direction of the pawl, with a Stop of the pawl cooperating locking arm.
  • the pawl is preferably provided with a guide contour which is elastic Dodging the locking arm causes. This allows the locking arm when Swiveling the housing relative to the carriage before the manufacture of the Dodge the connection between the locking arm and the stop laterally.
  • the stop arranged on the pawl is formed by a stop surface which is facing away from the locking rail or the carriage.
  • the free end of the Locking arm is angled and as essentially parallel to the stop surface the pawl extending stop edge. So this kind of fixing is possible if a boundary surface of the housing on the depth stop is applied, advantageously corresponds to the distance between that of the pawl facing stop surface of the depth stop and the stop edge of the Locking arm at least the distance between the depth stop facing boundary surface of the housing and that as a stop surface trained stop of the pawl.
  • the locking arm is preferably made of spring steel educated.
  • the wall slot device shown in Fig. 1 consists of a housing 1, one with the housing 1 connected drive unit 2 for one of at least one Disc 5 existing slot tool 4 and a slide 3 together. Across from the carriage 3, the housing 1 is parallel to the disk plane of the slot tool 4th around a pivot bearing 6 arranged in a first end region of the device against the Force pivotable by a spring 7.
  • rollers 23 are arranged, the better Moving the carriage 3 on a surface to be processed U should serve.
  • the rollers 23 are arranged such that the carriage 3 or the entire device only in the parallel to the longitudinal extent of the device Directions can be done.
  • a gear, not shown, connected to the drive unit 2 has an output shaft 24 which is perpendicular to the longitudinal direction of the housing 1 and to which two disks 5 forming the slitting tool 4 are fastened.
  • the housing 1 Both in the first connected to the slide 3 via the rotary bearing 6 End area as well as in a second end area, the housing 1 has one protruding handle 9, 10.
  • the handle 10 arranged in the first end region of the device has one Electric switch 25, which sets the drive unit 2 in motion when actuated.
  • the handle 9 arranged in the second end region of the device has one Locking switch 11 which, when actuated, limits the Pivotal movement between housing 1 and slide 3 serving pawl 12 against the force of a spring element 8 is rotated.
  • the locking switch 11 In the locked position of the pawl 12 - the locking switch 11 is not pressed - is supported, as shown in Fig. 2, a locking tongue 13 of the pawl 12 at the free end of the carriage 3 in the direction Housing 1 protruding locking rail 17.
  • this locking rail 17 On this locking rail 17 is a, a clamping area, not shown having depth stop 18 arranged along this locking rail 17 is gradually adjustable.
  • the clamping area acts positively with one toothed area 29 of the locking rail 17 together. Using one too from the slide 3 protruding setting scale 19, the depth stop 18 to a desired slot depth can be set.
  • the Stop 14 is formed by a stop surface which is formed by the locking rail 17 or facing away from the carriage 3.
  • the free end of the locking arm 28 is angled and as substantially parallel to the stop 14 of the pawl 12th extending stop edge 21 formed which engages behind the stop 14 and thus fixing the housing 1 on the depth stop 18 and thus also on the Carriage 3 allows.
  • the pawl 12 has one Guide contour 15 on the elastic evasion of the locking arm 28th with simultaneous, substantially parallel displacement of the stop edge 21.
  • the angled free end of the Locking arm 28 on the guide contour 15 of the pawl 12 is from this laterally offset. This is formed from an elastic material Locking arm 28 biased.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)
  • Dovetailed Work, And Nailing Machines And Stapling Machines For Wood (AREA)
  • Sewage (AREA)
  • Feeding Of Articles To Conveyors (AREA)
  • Vending Machines For Individual Products (AREA)
  • Formation And Processing Of Food Products (AREA)

Abstract

The machine for cutting a slot in a wall has two handles (9,10) on a housing (1) containing a drive (2) for the cutting disc (5). It pivots about one end of a trolley (3) in a bearing (6) against the force of a spring (7). At the other end of the trolley is a rail (17) used for locking the housing so that a defined depth of cut is given. The housing has a latch (12) operated by a switch in one of the handles. The boss (18) marking the depth of cut has an arm (28) protruding upwards with which the latch works. The arm is made from spring steel.

Description

Die Erfindung betrifft ein Mauerschlitzgerät mit einem zwei Handgriffe aufweisenden Gehäuse, das eine Antriebseinheit für ein aus wenigstens einer Scheibe bestehendes Schlitzwerkzeug enthält und gegenüber einem Schlitten um ein in seinem ersten Endbereich angeordnetes Drehlager gegen die Kraft einer Feder parallel zur Scheibenebene des Schlitzwerkzeuges verschwenkbar ist, wobei der Schlitten in seinem zweiten Endbereich eine in Richtung Gehäuse abragende, der Aufnahme eines verstellbaren Tiefenanschlages dienende Verriegelungsschiene und das Gehäuse eine mit der Verriegelungsschiene zusammenwirkende Sperrklinke aufweist, die von einem an einem der Handgriffe angeordneten Verriegelungsschalter betätigbar ist,The invention relates to a wall slot device with a two handles Housing, which is a drive unit for a consisting of at least one disc Includes slot tool and versus a slide around one in its first End area arranged pivot bearing against the force of a spring parallel to Disc plane of the slot tool is pivotable, the slide in its second end region protruding towards the housing, the inclusion of a adjustable depth stop serving locking rail and the housing one with the locking rail cooperating pawl, which from one one of the handles arranged locking switch can be actuated,

Für Elektro-Installationen in Neu-, Um- oder Zubauten sind Elektrorohre zu verlegen, die der Aufnahme einzelner Elektrokabel dienen. Bei betonierten Bauteilen wie Böden, Decken oder Wänden werden die Elektrorohre in der Regel in der Schalung befestigt, bevor diese mit Beton ausgegossen wird. Für die weitere Verlegung der aus den betonierten Bauteilen ragenden Elektrorohre in gemauerten Wänden werden Mauerschlitzgeräte verwendet, mit deren Hilfe zwei parallel zueinander verlaufende Schlitze in die gemauerte Wand eingefräst werden. Die Tiefe und der Abstand beider Schlitze voneinander hängen ab von der Anzahl und dem Durchmesser der zu verlegenden Elektrorohre. Mittels eines geeigneten Ausbrechwerkzeuges wird der sich zwischen den Schlitzen befindliche Teil der gemauerten Wand ausgebrochen, so dass eine der Aufnahme der Elektrorohre dienende Aufnahmenut entsteht.For electrical installations in new buildings, conversions or extensions, electrical pipes are to be laid that serve to accommodate individual electrical cables. For concrete components such as floors, Cables or walls are usually attached to the formwork, before it is poured with concrete. For the further laying of the from the concrete pipes protruding electrical pipes in brick walls Wall slot devices used, with the help of two parallel to each other Slots are milled into the brick wall. The depth and spacing of both Slits depend on each other on the number and diameter of the laying electrical pipes. Using a suitable stripping tool, the part of the brick wall located between the slots was broken out, so that a receiving groove is used to accommodate the electrical tubes.

Aus der DE-A-38 15 245 ist ein Mauerschlitzgerät mit einem Gehäuse, eine mit dem Gehäuse in Verbindung stehende Anstriebseinheit für ein aus wenigstens einer Scheibe bestehendes Schlitzwerkzeug und einem Schlitten bekannt. In der Ausgangsstellung nimmt das Gehäuse gegenüber dem Schlitten eine schräge Lage ein, so dass das Schlitzwerkzeug die an einem Untergrund aufliegende Seite des Schlittens nicht überragt. Das Gehäuse ist parallel zur Scheibenebene des Schlitzwerkzeuges um ein in einem ersten Endbereich des Schlittens angeordnetes Drehlager gegen die Kraft eines Federelementes in eine Arbeitsposition verschwenkbar, wobei zur Begrenzung der Schwenkbewegung zwischen Gehäuse und Schlitten eine vom Schlitten in Richtung Gehäuse abragende Verriegelungsschiene mit ihrem freien Ende an einer Sperrzunge einer im Gehäuse angeordneten Sperrklinke anliegt. Diese Sperrklinke ist mit einem in einem Handgriff angeordneten Verriegungsschalter verbunden, der beim Betätigen ein Verdrehen dieser Sperrklinke um ihre Längsachse und somit auch der Sperrzunge gegen die Kraft eines Federteiles bewirkt. Beim Loslassen des Verriegelungsschalters dreht sich die Sperrklinke in ihre Ausgangslage zurück. Auf der Verriegelungsschiene ist ein Tiefenanschlag angeordnet, der entlang der Verriegelungsschiene stufenweise verstellbar ist.From DE-A-38 15 245 is a wall slot device with a housing, one with the Housing-connected drive unit for a from at least one disc existing slot tool and a slide known. In the starting position the housing takes an oblique position with respect to the slide, so that The slot tool does not apply to the side of the slide lying on a surface surmounted. The housing is parallel to the disk plane of the slot tool by an in a rotary bearing arranged against a first end region of the slide Spring element pivotable into a working position, limiting the Swiveling movement between the housing and the slide in the direction of the slide Locking rail protruding from the housing with its free end on a locking tongue a pawl arranged in the housing rests. This pawl is with an in a handle arranged locking switch connected to the one when pressed Rotate this pawl about its longitudinal axis and thus also the locking tongue caused against the force of a spring part. When you release the lock switch the pawl turns back to its original position. On the locking rail is a depth stop arranged in stages along the locking rail is adjustable.

Bei diesem bekannten Gerät muss die Bedienungsperson neben der für den Schlitzvorgang notwendigen hohen Anpresskraft auch jene Kraft während des gesamten Schlitzvorganges aufbringen, die für das Zusammendrücken der zwischen dem Schlitten und dem Gehäuse angeordneten Feder notwendig ist. Diese zusätzliche Belastung führt schnell zu Ermüdungserscheinungen, so dass die Anpresskraft nachlässt. Die Folge davon sind unterschiedlich tiefe Schlitze.In this known device, the operator in addition to that for the Slitting process necessary high contact pressure also that force during the entire Apply the slitting process for squeezing the between the sled and the housing arranged spring is necessary. This additional burden leads quickly leads to signs of fatigue, so that the contact pressure decreases. The consequence there are slots of different depths.

Der Erfindung liegt die Aufgabe zugrunde ein Mauerschlitzgerät zu schaffen, mit dem ein ermüdungsfreies, einfaches und sicheres Herstellen von Schlitzen mit gleichbleibender Tiefe in Untergründen, insbesondere Mauerwerken, möglich ist.The invention has for its object to provide a wall slot device with a Fatigue-free, simple and safe production of slots with constant Depth in underground, especially masonry, is possible.

Erfindungsgemäss wir die Aufgabe dadurch gelöst, dass der Tiefenanschlag an der Sperrklinke festlegbar ist.According to the invention the object is achieved in that the depth stop on the Pawl can be fixed.

Zum Herstellen der Schlitze in dem Untergrund wird das Gehäuse gegenüber dem Schlitten und somit auch gegenüber der Verriegelungsschiene verschwenkt. Sobald das Gehäuse an dem Tiefenanschlag zur Anlage gelangt, erfolgt eine Festlegung des Tiefenanschlages an der Sperrklinke des Gehäuses. Ein Abheben des Gehäuses von dem Tiefenanschlag ist dadurch nicht mehr möglich, obwohl die zwischen dem Gehäuse und dem Schlitten angeordnete Feder unter Vorspannung steht. Die von der Feder ausgehende Kraft muss somit während des Schlitzvorganges nicht zusätzlich aufgebracht werden. To create the slots in the underground, the housing is opposite Carriage and thus also pivoted relative to the locking rail. As soon as that If the housing comes into contact with the depth stop, the Depth stop on the pawl of the housing. Lifting the case off the depth stop is no longer possible, although that between the housing and the slide arranged spring is under tension. The feather outgoing force therefore does not have to be additional during the slitting process be applied.

Das Festlegen des Gehäuses an dem Tiefenanschlag erfolgt zweckmässigerweise mit Hilfe des Tiefenanschlages, der einen in Richtung Sperrklinke abragenden, mit einem Anschlag der Sperrklinke zusammenwirkenden Verriegelungsarm aufweist.The housing is conveniently fixed to the depth stop with Help with the depth stop, which protrudes in the direction of the pawl, with a Stop of the pawl cooperating locking arm.

Vorzugsweise ist die Sperrklinke mit einer Führungskontur versehen, die ein elastisches Ausweichen des Verriegelungsarmes bewirkt. Dadurch kann der Verriegelungsarm beim Verschwenken des Gehäuses gegenüber dem Schlitten vor der Herstellung der Verbindung zwischen Verriegelungsarm und Anschlag seitlich ausweichen.The pawl is preferably provided with a guide contour which is elastic Dodging the locking arm causes. This allows the locking arm when Swiveling the housing relative to the carriage before the manufacture of the Dodge the connection between the locking arm and the stop laterally.

Der an der Sperrklinke angeordnete Anschlag ist gebildet von einer Anschlagfläche, die von der Verriegelungsschiene bzw. dem Schlitten abgewandt ist. Das freie Ende des Verriegelungsarmes ist abgewinkelt und als im wesentlichen parallel zur Anschlagfläche der Sperrklinke verlaufende Anschlagkante ausgebildet. Damit diese Art der Festlegung möglich ist, wenn eine Begrenzungsfläche des Gehäuses an dem Tiefenanschlages anliegt, entspricht vorteilhafterweise der Abstand zwischen der der Sperrklinke zugewandten Anschlagfläche des Tiefenanschlages und der Anschlagkante des Verriegelungsarmes wenigstens dem Abstand zwischen der dem Tiefenanschlag zugewandten Begrenzungsfläche des Gehäuses und dem als Anschlagfläche ausgebildeten Anschlag der Sperrklinke.The stop arranged on the pawl is formed by a stop surface which is facing away from the locking rail or the carriage. The free end of the Locking arm is angled and as essentially parallel to the stop surface the pawl extending stop edge. So this kind of fixing is possible if a boundary surface of the housing on the depth stop is applied, advantageously corresponds to the distance between that of the pawl facing stop surface of the depth stop and the stop edge of the Locking arm at least the distance between the depth stop facing boundary surface of the housing and that as a stop surface trained stop of the pawl.

Aus funktionellen Gründen ist der Verriegelungsarm vorzugsweise aus Federstahl gebildet.For functional reasons, the locking arm is preferably made of spring steel educated.

Die Erfindung wird anhand von Zeichnungen, die ein Ausführungsbeispiel wiedergeben, näher erläutert. Es zeigen:

Fig. 1
ein erfindungsgemässes Mauerschlitzgerät in der Ruhestellung;
Fig. 2 - 5
einen Schnitt durch den Verriegelungsmechanismus des Mauerschlitzgerätes gemäss Fig. 1; das Gehäuse ist gegenüber dem Schlitten unterschiedlich geneigt angeordnet.
The invention is explained in more detail with reference to drawings which show an exemplary embodiment. Show it:
Fig. 1
a wall slot device according to the invention in the rest position;
Figs. 2-5
a section through the locking mechanism of the wall slot device according to FIG. 1; the housing is arranged at a different angle to the slide.

Das in Fig. 1 dargestellte Mauerschlitzgerät setzt sich aus einem Gehäuse 1, einer mit dem Gehäuse 1 in Verbindung stehenden Antriebseinheit 2 für ein aus wenigstens einer Scheibe 5 bestehendes Schlitzwerkzeug 4 und einem Schlitten 3 zusammen. Gegenüber dem Schlitten 3 ist das Gehäuse 1 parallel zur Scheibenebene des Schlitzwerkzeuges 4 um ein in einem ersten Endbereich des Gerätes angeordnetes Drehlager 6 gegen die Kraft einer Feder 7 verschwenkbar.The wall slot device shown in Fig. 1 consists of a housing 1, one with the housing 1 connected drive unit 2 for one of at least one Disc 5 existing slot tool 4 and a slide 3 together. Across from the carriage 3, the housing 1 is parallel to the disk plane of the slot tool 4th around a pivot bearing 6 arranged in a first end region of the device against the Force pivotable by a spring 7.

In den Ecken des Schlittens 3 sind Rollen 23 angeordnet, die dem besseren Verschieben des Schlittens 3 auf einem zu bearbeitenden Untergrund U dienen sollen. Die Rollen 23 sind derartig angeordnet, dass ein Verschieben des Schlittens 3 bzw. des gesamten Gerätes nur in den parallel zur Längserstreckung des Gerätes verlaufenden Richtungen erfolgen kann.In the corners of the carriage 3 rollers 23 are arranged, the better Moving the carriage 3 on a surface to be processed U should serve. The rollers 23 are arranged such that the carriage 3 or the entire device only in the parallel to the longitudinal extent of the device Directions can be done.

Ein mit der Antriebseinheit 2 in Verbindung stehendes, nicht dargestelltes Getriebe weist eine Abtriebswelle 24 auf, die rechtwinklig zur Längsrichtung des Gehäuses 1 verläuft und an der zwei, das Schlitzwerkzeug 4 bildende Scheiben 5 befestigt sind.A gear, not shown, connected to the drive unit 2 has an output shaft 24 which is perpendicular to the longitudinal direction of the housing 1 and to which two disks 5 forming the slitting tool 4 are fastened.

Auf der Oberseite des Gehäuses 1 ist ein Absaugstutzen 20 zwischen beiden Handgriffen 9, 10 angeordnet, an dem mittels Halterungselementen 22 ein zwischen den Handgriffen 9, 10 aus dem Gehäuse 1 ragendes Elektrokabel 16 anklipsbar ist.On the upper side of the housing 1 there is an extraction nozzle 20 between the two Handles 9, 10 arranged on which by means of mounting elements 22 between the Handles 9, 10 from the housing 1 projecting electrical cable 16 can be clipped on.

Sowohl in dem über das Drehlager 6 mit dem Schlitten 3 verbundenen ersten Endbereich als auch in einem zweiten Endbereich besitzt das Gehäuse 1 jeweils einen abragenden Handgriff 9, 10.Both in the first connected to the slide 3 via the rotary bearing 6 End area as well as in a second end area, the housing 1 has one protruding handle 9, 10.

Der im ersten Endbereich des Gerätes angeordnete Handgriff 10 weist einen Elektroschalter 25 auf, der bei Betätigung die Antriebseinheit 2 in Bewegung setzt.The handle 10 arranged in the first end region of the device has one Electric switch 25, which sets the drive unit 2 in motion when actuated.

Der im zweiten Endbereich des Gerätes angeordnete Handgriff 9 besitzt einen Verriegelungsschalter 11, der bei Betätigung eine der Begrenzung der Schwenkbewegung zwischen Gehäuse 1 und Schlitten 3 dienende Sperrklinke 12 gegen die Kraft eines Federelementes 8 verdreht. In der verriegelten Stellung der Sperrklinke 12 - der Verriegelungsschalter 11 ist nicht gedrückt - stützt sich, wie in Fig. 2 dargestellt, eine Sperrzunge 13 der Sperrklinke 12 am freien Ende einer vom Schlitten 3 in Richtung Gehäuse 1 abragenden Verriegelungsschiene 17 ab.The handle 9 arranged in the second end region of the device has one Locking switch 11 which, when actuated, limits the Pivotal movement between housing 1 and slide 3 serving pawl 12 against the force of a spring element 8 is rotated. In the locked position of the pawl 12 - the locking switch 11 is not pressed - is supported, as shown in Fig. 2, a locking tongue 13 of the pawl 12 at the free end of the carriage 3 in the direction Housing 1 protruding locking rail 17.

An dieser Verriegelungsschiene 17 ist ein, einen nicht näher dargestellten Klemmbereich aufweisenden Tiefenanschlag 18 angeordnet, der entlang dieser Verriegelungsschiene 17 stufenweise verstellbar ist. Der Klemmbereich wirkt dabei formschlüssig mit einem verzahnten Bereich 29 der Verriegelungsschiene 17 zusammen. Anhand einer ebenfalls vom Schlitten 3 abragenden Einstellskala 19 kann der Tiefenanschlag 18 auf eine gewünschte Schlitztiefe eingestellt werden.On this locking rail 17 is a, a clamping area, not shown having depth stop 18 arranged along this locking rail 17 is gradually adjustable. The clamping area acts positively with one toothed area 29 of the locking rail 17 together. Using one too from the slide 3 protruding setting scale 19, the depth stop 18 to a desired slot depth can be set.

Durch das Betätigen des Verriegelungsschalters 11, wie in Fig. 3 dargestellt, wird die Sperrklinke 12 mit Hilfe von Übertragungselementen aus einer Verriegelungsstellung in eine Öffnungsstellung verdreht. Auf diese Weise gibt die an der Sperrklinke 12 angeordnete Sperrzunge 13 die Verriegelungsschiene 17 frei und das Gehäuse 1 kann gegenüber der Verriegelungsschiene 17 bzw. gegenüber dem Schlitten 3 verschwenkt werden.By operating the locking switch 11, as shown in Fig. 3, the Pawl 12 with the help of transmission elements from a locking position in twisted an open position. In this way, the arranged on the pawl 12 Locking tongue 13 the locking rail 17 free and the housing 1 can be opposite the locking rail 17 or pivoted relative to the carriage 3 become.

Gelangt wie in Fig. 5 dargestellt eine dem Tiefenanschlag 18 zugewandte Begrenzungsfläche 26 des Gehäuses 3 an einer Anschlagfläche 27 des auf der Verriegelungschiene 17 angeordneten Tiefenanschlags 18 zur Anlage, so erfolgt eine Festlegung des Gehäuses 1 gegenüber dem auf die gewünschte Schlitztiefe eingestellten Tiefenanschlag 18 so lange, wie der Verriegelungsschalter 11 betätigt wird. Das Gerät befindet sich somit in Arbeitsposition und die Scheiben 5 des Schlitzwerkzeuges 4 überragen die auf dem zu bearbeitenden Untergrund U aufliegende . Seite des Schlittens 3 um jenen Betrag, der von der Einstellskala 19 ablesbar ist. Das Festlegen des Gehäuses 1 an dem Tiefenanschlag 18 erfolgt mit Hilfe des Tiefenanschlages 18, der einen in Richtung Sperrklinke 12 abragenden, mit einem Anschlag 14 der Sperrklinke 12 zusammenwirkenden Verriegelungsarm 28 aufweist. Der Anschlag 14 ist gebildet von einer Anschlagfläche, die von der Verriegelungsschiene 17 bzw. dem Schlitten 3 abgewandt ist. Das freie Ende des Verriegelungsarmes 28 ist abgewinkelt und als im wesentlichen parallel zum Anschlag 14 der Sperrklinke 12 verlaufende Anschlagkante 21 ausgebildet, die ein Hintergreifen des Anschlages 14 und somit ein Festlegen des Gehäuses 1 an dem Tiefenanschlag 18 und somit auch an dem Schlitten 3 ermöglicht.As shown in FIG. 5, one reaches the depth stop 18 Boundary surface 26 of the housing 3 on a stop surface 27 on the Locking rail 17 arranged depth stop 18 to the system, so there is a Fixing the housing 1 with respect to the desired slot depth set depth stop 18 as long as the locking switch 11 is operated. The device is thus in the working position and the discs 5 of the Slotted tool 4 protrude from the surface U to be machined. Side of the carriage 3 by the amount that can be read from the setting scale 19. The Setting the housing 1 on the depth stop 18 is carried out with the help of Depth stop 18, which projects in the direction of the pawl 12, with a Stop 14 of the pawl 12 has cooperating locking arm 28. The Stop 14 is formed by a stop surface which is formed by the locking rail 17 or facing away from the carriage 3. The free end of the locking arm 28 is angled and as substantially parallel to the stop 14 of the pawl 12th extending stop edge 21 formed which engages behind the stop 14 and thus fixing the housing 1 on the depth stop 18 and thus also on the Carriage 3 allows.

Wie die Fig. 4 zeigt, kann ein Hintergreifen des Anschlages 14 der Sperrklinke 12 nur dann erfolgen, wenn beim Verschwenken des Gehäuses 1 gegenüber dem Schlitten 3 eine im wesentlichen parallele Verschiebung des Anschlages 14 gegenüber der Anschlagkante 21 des Verriegelungsarmes 28 erfolgt. Die Sperrklinke 12 weist eine Führungskontur 15 auf, die ein elastisches Ausweichen des Verriegelungsarmes 28 unter gleichzeitiger, im wesentlichen paralleler Versetzung der Anschlagkante 21 bewirkt. Während des Verschwenkens des Gehäuses 1 liegt das abgewinkelte freie Ende des Verriegelungsarmes 28 an der Führungskontur 15 der Sperrklinke 12 an und wird von dieser seitlich versetzt. Dabei wird der aus einem elastischen Material gebildete Verriegelungsarm 28 vorgespannt. Beim Erreichen der Arbeitsposition - die Begrenzungsfläche 26 des Gehäuses 1 liegt an der Anschlagfläche 27 des Tiefenanschlages 18 an - verlässt das freie Ende des Verriegelungsarmes 28 die Führungskontur 15 der Sperrklinke 12 und der Verriegelungsarm 28 federt in seine ursprüngliche Lage zurück und hintergreift dabei den Anschlag 14 der Sperrklinke 12.4 shows, reaching behind the stop 14 of the pawl 12 only then take place when the housing 1 is pivoted relative to the slide 3 a substantially parallel displacement of the stop 14 relative to the Stop edge 21 of the locking arm 28 takes place. The pawl 12 has one Guide contour 15 on the elastic evasion of the locking arm 28th with simultaneous, substantially parallel displacement of the stop edge 21. During the pivoting of the housing 1, the angled free end of the Locking arm 28 on the guide contour 15 of the pawl 12 and is from this laterally offset. This is formed from an elastic material Locking arm 28 biased. When you reach the working position - the Boundary surface 26 of the housing 1 lies on the stop surface 27 of the Depth stop 18 on - leaves the free end of the locking arm 28 Guide contour 15 of the pawl 12 and the locking arm 28 springs into it original position back and engages behind the stop 14 of the pawl 12th

Damit ein Hintergreifen des als Anschlagfläche ausgebildeten Anschlages 14 der Sperrklinke 12 mit der Anschlagkante 21 des Verriegelungsarmes 28 möglich ist, wenn die Begrenzungsfläche 26 des Gehäuses 1 an dem Tiefenanschlag 18 anliegt, entspricht vorteilhafterweise der Abstand A1 zwischen einer der Sperrklinke 12 zugewandten Anschlagfläche 27 des Tiefenanschlages 18 und einer Anschlagkante 21 des Verriegelungsarmes 28 wenigstens dem Abstand A2 zwischen einer dem Tiefenanschlag 18 zugewandten Begrenzungsfläche 26 des Gehäuses 1 und dem Anschlag 14 der Sperrklinke 12.So that reaching behind the stop 14 designed as a stop surface Pawl 12 with the stop edge 21 of the locking arm 28 is possible if the boundary surface 26 of the housing 1 abuts the depth stop 18 advantageously the distance A1 between one of the pawl 12 facing Stop surface 27 of the depth stop 18 and a stop edge 21 of the Locking arm 28 at least the distance A2 between one of the depth stop 18 facing boundary surface 26 of the housing 1 and the stop 14 of the Pawl 12.

Ein Aufklappen des Gehäuses 1 gegenüber dem Schlitten 3 bzw. ein Abheben des Gehäuses 1 von dem Tiefenanschlag 18 ist somit nicht möglich, obwohl die zwischen dem Gehäuse 1 und dem Schlitten 3 angeordnete Feder 7 unter Vorspannung steht. Nach dem Loslassen des Verriegelungsschalters 11 dreht sich die Sperrklinke 12 in ihre Ausganglage zurück, so dass die Verriegelung zwischen dem Anschlag 14 der Sperrklinke 12 und der Anschlagkante 21 des Verriegelungsarmes 28 aufgehoben wird. Das Gerät kann seine Ausgangsstellung wieder einnehmen, indem das Gehäuse 1 und der Schlitten 3 auseinanderklappen.Unfolding the housing 1 relative to the carriage 3 or lifting the Housing 1 of the depth stop 18 is therefore not possible, although the between the housing 1 and the slide 3 arranged spring 7 is under tension. After releasing the locking switch 11, the pawl 12 rotates into it Starting position back, so that the locking between the stop 14 of the Pawl 12 and the stop edge 21 of the locking arm 28 is lifted. The device can return to its starting position by the housing 1 and unfold the carriage 3.

Claims (5)

  1. Wall grooving device, comprising a housing (1) with two handles (9, 10) and including a drive unit (2) for a grooving tool (4) which is composed of at least one disc (5) and pivotal relative to a carriage (3) around a rotary bearing (6) arranged in its first end area against the force of a spring (7) parallel to the disc plane of the grooving tool (4), and the carriage (3) comprises in its second end area a locking rail (17) which projects in the direction of the housing (1) and seves to accommodate an adjustable depth stop (18), and the housing (1) comprises a locking bar (12) which co-acts with the locking rail (17) and which is operated by a locking switch (11) arranged on one of the handles (9, 10), characterised in that the depth stop (18) is secured on the locking bar (12).
  2. Device according to Claim 1, characterised in that the depth stop (18) comprises a locking arm (28) which projects in the direction of the locking bar (12) and co-acts with a stop (14) of the locking bar (12).
  3. Device according to Claim 1 or 2, characterised in that the locking bar (12) comprises a guide contour (15) which causes elastic yielding of the locking arm (28).
  4. Device according to Claim 2 or 3, characterised in that the distance (A1) between a stop surface (27) of the depth stop (18) oriented towards the locking bar (12) and a stop edge (21) of the locking arm (28) corresponds at least with the distance (A2) between a defining surface (26) of the housing (1) facing towards the depth stop (18) and the stop (14) of the locking bar (12).
  5. Device according to one of Claims 2 to 4, characterised in that the locking arm (28) is made of spring steel.
EP96810078A 1995-03-30 1996-02-07 Wall grooving device Expired - Lifetime EP0734822B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19511725A DE19511725A1 (en) 1995-03-30 1995-03-30 Wall slot device
DE19511725 1995-03-30

Publications (3)

Publication Number Publication Date
EP0734822A2 EP0734822A2 (en) 1996-10-02
EP0734822A3 EP0734822A3 (en) 1998-02-18
EP0734822B1 true EP0734822B1 (en) 2002-10-23

Family

ID=7758192

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96810078A Expired - Lifetime EP0734822B1 (en) 1995-03-30 1996-02-07 Wall grooving device

Country Status (7)

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US (1) US5676126A (en)
EP (1) EP0734822B1 (en)
JP (1) JP3662334B2 (en)
KR (1) KR100387020B1 (en)
AT (1) ATE226497T1 (en)
DE (2) DE19511725A1 (en)
ES (1) ES2185754T3 (en)

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JP4796285B2 (en) * 2004-06-18 2011-10-19 日立工機株式会社 Portable cutting tools
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Also Published As

Publication number Publication date
EP0734822A3 (en) 1998-02-18
JP3662334B2 (en) 2005-06-22
ATE226497T1 (en) 2002-11-15
DE19511725A1 (en) 1996-10-02
KR100387020B1 (en) 2003-10-04
EP0734822A2 (en) 1996-10-02
KR960033675A (en) 1996-10-22
US5676126A (en) 1997-10-14
ES2185754T3 (en) 2003-05-01
DE59609805D1 (en) 2002-11-28
JPH08281640A (en) 1996-10-29

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