EP3256298B1 - Manually operated cutting machine comprising a return spring mechanism - Google Patents

Description

The invention relates to a hand cutting machine, in particular a sawing machine, with a drive assembly according to the preamble of claim 1.

Such a hand cutting machine is in WO 2004/060621 A1 explained.

A hand cutting machine of this type is usually a so-called pendulum hood saw, the saw blade of which is covered by the pendulum hood when not in use. The cover device assumes the closed position. This protects the user. The user cannot reach into the possibly rotating cutting tool and injure himself in the process. The cutting tool can therefore easily protrude permanently in front of the guide surface, since it is covered by the pendulum hood when not in use.

However, the handling of the depth setting device is relatively complicated for some operating modes, i.e. the operator must firstly grasp the guide device or at least ensure that it is oriented downwards, but secondly also grip the drive assembly in order to set the respective cutting depth.

It is therefore the object of the present invention to improve the handling of a hand-held cutting machine of the type mentioned at the beginning.

To achieve the object, a hand cutting machine according to the technical teaching of claim 1 is provided.

The advantage of this construction is that the hand-held cutting machine adjusts itself, so to speak, in the direction of the upper cutting depth position. If so For example, a depth setting device is provided that enables the operator to fix the drive assembly with respect to the guide device, in order to set a cutting depth in this way, the operator only needs to loosen this fixation, whereupon the drive assembly is automatically, so to speak, by the force of the reset -Spring device, adjusted in the direction of the upper cutting depth position. Operation and handling is very convenient and easy.

The return spring device enables the manual cut-off machine to be used both as a conventional pendulum hood saw, as it were, and as a plunge-cut saw.

In the closed position, the covering device completely or at least partially covers the cutting tool. In any case, it is preferably provided that, in the closed position, the cover device covers an area or apex area of the cutting tool that protrudes furthest away from the guide surface.

It is preferably provided that the cover device is arranged below the guide surface of the guide device in the closed position.

According to the invention it is provided that the hand cutting machine has a spring deactivation device for at least partial deactivation of the return spring device, the return spring device not acting on the drive assembly in this deactivated state in the direction of the upper cutting depth position. For example, the resetting spring device is held in this deactivation position between spring holding elements, for example clamped or clamped, so to speak, which is fixedly connected or connectable to the drive assembly or the guide device. For example, one of the spring-holding elements can be permanently fixed on the drive assembly or the guide device, while the other spring-holding element between an activation position releasing the resetting spring device, in which the resetting spring device moves the drive assembly in the direction of the applied upper cutting depth position, and adjusted to a deactivation position in which the return spring device is held between the spring holding elements. For example, it is possible for the spring deactivation device to have a clamping screw, a clamping body, a clamping lever, a detent, a pawl or the like in order to keep the resetting spring device in the at least partially deactivated state. One of the aforementioned spring-holding elements is therefore preferably adjustably mounted on the drive assembly or the guide device between a release position releasing the reset spring device and a blocking position that keeps the reset spring device at least partially inactive.

The spring deactivation device expediently forms a fixed or integral part of the hand-held cutting machine. It is expediently provided that the spring deactivation device cannot be detached from the hand-held cutting machine during normal use and / or that the spring deactivation device is advantageously not designed as an additional adapter.

The spring deactivation device can expediently be actuated without tools and / or by an actuating element permanently present on board the hand-held cutting machine.

It is expediently provided that the spring deactivation device also remains on board the manual cutting machine in the deactivated state of the return spring device. The spring deactivation device therefore remains on board the manual cutting machine at all times or permanently, so that it can be used by the operator at any time.

An advantageous embodiment provides that the cover device is spring-loaded in the direction of the closed position. For example, a corresponding closing spring is provided which is tensioned when the cover device is adjusted from the closed position into the open position and thus loads the cover device in the direction of the closed position.

An actuating device for manual adjustment of the cover device from the closed position into the open position is advantageously provided. The actuating device is expediently arranged on the drive assembly. The actuating device preferably has an actuating element, for example an actuating lever or the like, which can be actuated by the operator when gripping the drive assembly. The construction is preferably made such that the operator, so to speak, manually actuates the cover device from the closed position into the open position, but the spring load acts in the opposite direction. A preferred embodiment provides that the spring arrangement is integrated into the actuating device. For example, the aforementioned actuating element can be spring-loaded into a position corresponding to the closed position of the cover device.

The hand-held cutting machine preferably has a depth setting device for setting a respective cutting depth position.

An advantageous variant provides that the return spring device is arranged on the depth adjustment device. It is also possible that the return spring device is integrated into the depth adjustment device or forms part of the depth adjustment device.

A further variant of the invention provides that the hand cutting machine has a guide arrangement for guiding the pivoting movement of the drive assembly about the depth adjustment axis relative to the guide device. The guide arrangement is at a distance from the depth adjustment bearing. It is advantageous if the return spring device is arranged on the guide arrangement or is integrated into it. It can also form part of the guide arrangement.

The guide arrangement and the depth adjustment device can represent one and the same assembly or be arranged thereon. In this respect, it is also possible for the return spring device to be arranged on the depth adjustment device and at the same time on the guide arrangement.

The guide arrangement expediently has guide elements which are guided against one another. The resetting spring device is expediently guided on at least one of the guide elements.

The guide elements preferably comprise a guide projection and a guide receptacle into which the guide projection engages. The resetting spring device is expediently arranged between the guide projection and the guide receptacle. For example, the guide projection is rod-shaped and penetrates or penetrates a spring of the return spring device. The spring is advantageously arranged in the guide receptacle.

It is possible that the return spring device is advantageously received and / or guided in a guide receptacle, in particular for guiding the adjusting body. In addition or as an alternative, it is also possible for the return spring device to be guided on a guide projection and / or on the adjusting body. For example, the guide projection or the setting body penetrates the return spring device, in particular a helical spring, or penetrates it.

At this point, however, it should be mentioned that the resetting spring device does not necessarily have to be arranged on or near the depth adjustment device. The resetting spring device can also be arranged apart from the depth adjustment device or next to the depth adjustment device.

A preferred embodiment of the invention provides that the depth adjustment device or the guide arrangement form or have the spring deactivation device.

A preferred embodiment of the invention provides that the depth setting device for setting the respective cutting depth position has a guide depth setting element connected to the guide device and a drive depth setting element connected to the drive assembly, which is adjusted when the cutting depth position is adjusted relative to the guide depth setting element, and a has at least one setting body providing setting functionality, and that the setting body is movably mounted with respect to the guide depth setting element and the drive depth setting element and can be releasably fastened using a drive fastening device on or with the drive depth setting element and using a guide fastening device on the guide depth setting element is.

The guide depth adjustment element can, for example, form part of the guide device, that is to say it can be fixedly arranged on the guide device. At this point it should be noted that the guide device can also be made up of several parts, that is to say it can also comprise a drive carrier for the drive assembly, which will be explained later. The guide depth adjustment element can for example be arranged on the drive support. The drive depth adjustment element is, for example, arranged in a stationary manner on the drive assembly, for example a housing thereof.

The guide depth adjustment element can form or have a stop for the drive assembly. The drive depth adjustment element can also, for example form or have a stop for the guide device, for example the aforementioned drive carrier.

The basic idea here is that the adjustment body has a relation to the drive assembly and a relation to the guide device. The adjusting body can thus be connected once to the drive assembly, another time to the guide device and furthermore also to both, the guide device and the drive assembly. As a result, the adjustment body can implement several completely different adjustment functions. In the following, some setting functions are explained that can be provided individually or in any combination with one another.

The at least one setting functionality includes, for example, a stop function. The setting body preferably serves as a stop element for stopping the drive assembly in at least one cutting depth position. It is possible, for example, for the setting body to be fastened to the guide depth setting element and for the drive assembly to strike the setting body which is stationary relative to the guide device. It is also possible, however, for the adjustment body to be firmly connected to the drive assembly and, so to speak, to be moved along with it, whereby it strikes in its function as a stop body on a counter-stop element, which in turn is fixedly attached to the guide device.

Another advantageous setting functionality includes a display function. It is preferred if the setting body serves as a display element for displaying a respective cutting depth position. It is possible that the display element carries, for example, an index that is moved on a display scale that is stationary relative to the drive assembly or the guide device. For example, a corresponding scale can be provided on the guide depth setting element or the drive depth setting element, past which the setting body or the index of the setting body is moved in order to display a respective cutting depth in this way. It is preferred that a display scale is present on the setting body, which is located on a relative to the guide device or is moved past the fixed index relative to the drive assembly. If the setting body is adjusted directly with respect to a corresponding index, indexes that can be adjusted in the manner of tabs, for example, are not necessary. Thus, for example, an index or a display scale can be provided on the setting body.

Another setting functionality is, for example, a fixing function. It is preferred if the adjusting body is designed or used as a fixing element for fixing the drive assembly with respect to the guide device in at least one cutting depth position. It is possible, for example, that in this case the guide fastening device and the drive fastening device are connected to the adjusting body in order in this way to fix the drive assembly with respect to the guide device in a predetermined cutting depth position.

A preferred embodiment provides that the depth setting device has or forms a fixing device for fixing the drive assembly with respect to the guide device in at least one cutting depth position. This functionality is preferably implemented in connection with the setting body. But it is also possible that the fixing function is implemented independently of the adjustment body. The setting body can serve, for example, as a stop element and the fixing function can also be implemented, for example by providing a clamping device or latching device or locking device for clamping, latching or locking the drive assembly relative to the guide device away from the setting body.

If the depth adjustment element and the adjustment body are connected to one another by the respective fastening device, they are advantageously fixed to one another relative to one another with regard to at least one degree of freedom of movement.

The setting body expediently forms a fixing body for fixing the drive assembly with respect to the guide device. For example, or the fixing body comprises a form-fitting body which enables a form-fitting hold, and / or a clamping body which can be clamped or actively acts in the sense of a clamp. For example, the setting body can comprise clamping pliers or the like.

An advantageous embodiment of the invention provides that the drive fastening device or the guide fastening device or both have a latching device for latching the adjustment body with the respective depth adjustment element. At least one of the aforementioned fastening devices can also comprise a clamping device for clamping the setting body to the respective depth setting element (guide depth setting element or drive depth setting element).

It is also possible for a frictional engagement surface to be provided on a holding element of the drive fastening device or the guide fastening device, the frictional engagement surface serving to hold the adjusting body in a frictionally engaged manner. In this context, a frictional engagement surface is also advantageous on the adjustment body. The frictional engagement surface can, for example, comprise a rubber coating or the like.

A form-fitting hold that the respective fastening device and the setting element realize with one another is preferred. It is expediently provided that the drive fastening device or the guide fastening device or both and the setting body have mutually matching form-fit contours and mating form-fit contours. For example, form-locking projections are provided in the fastening device, which can engage positively in the form-locking receptacles of the setting body.

An advantageous configuration provides that the form-fit contours or counter-form-fit contours or both have a row of teeth or some other arrangement of form-fit projections or form-fit receptacles arranged next to one another in a row direction, the different cutting depth positions assigned. For example, two or more form-fit projections or form-fit receptacles are arranged next to one another. It is particularly preferred if at least one, preferably two rows of teeth is or are provided which can be brought into engagement with a counter-tooth or with one another in different cutting depth positions. The multiple teeth, which are each in engagement with one another, provide a particularly firm hold in the respective cutting depth position.

A preferred embodiment provides that the drive fastening device or guide fastening device or both are spring-loaded in the direction of a holding position holding the adjusting body. The fastening device thus has a holding element which is loaded by a spring or spring arrangement in the direction of the holding position. The operator only needs to be active in one direction, i.e. move the fastening device from the holding position into a release position so that the adjustment body is released. In the opposite direction, for example, an adjusting spring, in particular a compression spring or a tension spring, which loads the respective holding element of the drive fastening device or the guide fastening device in the direction of the holding position, then works.

It is expediently provided that the holding element can be deflected relative to one another in the direction of a release position releasing the setting body by adjusting the drive assembly and the guide device around the depth adjustment axis, i.e. has, for example, a corresponding actuation contour, for example an actuation bevel. A holding element is therefore preferably provided which, for example, can be brought into a release position by adjusting or pivoting the drive assembly about the depth adjustment axis towards the guide device or can be adjusted in the direction of the release position, for example, is pivoted out, and thereby releases the adjustment body or is pretensioned in order to to hold the adjustment body again. It is preferably provided that the holding element is then again urged into the holding position by the spring or spring arrangement in order to hold the adjusting body. For example, the drive assembly can be in the lower Cutting depth position can be fixed. It is also possible in this way to lock or clamp the setting element, for example, with the holding element, so that the setting element is, for example, fixedly connected to the guide device, for example the drive carrier, or the drive assembly.

A holding element of the drive fastening device or the guide fastening device is expediently movably mounted on the drive assembly or the guide device between a holding position holding the setting body and a release position releasing the setting body. However, it is also possible that a holding element of the drive fastening device or the guide fastening device is movably mounted on the setting body and, for example, in the release position, is moved away from the associated drive depth setting element or guide depth setting element, but in contact with it in the holding position is, for example, engages positively in this or frictionally engages this.

A holding element of the respective fastening device, on which, for example, form-fit contours, friction-fit surfaces or the like are provided, that is to say is provided for holding the adjustment body, is expediently pivotably mounted on the drive fastening device or the guide fastening device. For example, the holding element is mounted such that it can pivot on the guide device or the drive assembly or the setting element. Such a holding element can be actuated particularly easily. It is also possible, however, for a holding element of the drive fastening device or the guide fastening device to be mounted on the drive assembly or the guide device or the setting body so as to be slidable.

It is preferred if the drive fastening device or the guide fastening device or both have a hook or a holding pawl for Has engagement in the adjustment body. The hook or the retaining pawl is preferably spring-loaded.

The drive fastening device and / or the guide fastening device preferably have a holding element which has a holding arm and an actuating arm which is angled thereto, for example approximately at right angles. The holding arm is intended for contact with the adjustment body. For example, the holding arm has a frictional engagement surface or clamping surface or also form-fitting contours for holding the adjustment body. The actuating arm protrudes at an angle from the holding arm and can be easily gripped by the operator.

It is useful if an actuating element for manually actuating the guide fastening device or the drive fastening device or both, for example a corresponding handle section of the aforementioned actuating arm, is arranged at the rear of the hand cutting machine in the working direction. Of course, the actuating element can also be provided at the top, for example at the top of the drive assembly.

It is advantageous if an actuating element is arranged in an area of the drive assembly furthest away from the guide surface, ergonomically favorable, for example in the area of an upper apex area of the drive assembly, for example a cover for the cutting tool.

Using the actuating element, an operator can, for example, move the guide fastening devices and / or the drive fastening device from a fixing position that fixes the adjustment body with the respective depth adjustment element into a release position in which the adjustment body can be moved to the respective depth adjustment element and / or vice versa from the release position press into the fixing position.

It is expedient if the drive fastening device and / or the guide fastening device is loaded in the direction of the fixing position by a spring or spring arrangement and the operator uses the respective fastening device only has to actuate actively in the direction of the release position. For example, the respective fastening device forms a latching device which is loaded by the spring or spring arrangement in the direction of the setting element with the drive depth setting element or the guide depth setting element in the direction of the fixing position.

A manual actuating element is expediently assigned an abutment element, for example an arm, to which the operator can move the actuating element. For example, the operator can grip the actuating element and the abutment element in the manner of pliers or scissors.

It is advantageous if a guide arrangement is provided for guiding the drive assembly at a distance from the depth adjustment bearing in order to guide the drive assembly relative to the guide device during adjustment about the depth adjustment axis.

It is possible that the drive assembly is guided relative to the guide device with respect to the depth adjustment axis away from the depth adjustment device. For this purpose, for example, a separate guide arrangement with, for example, a guide projection is provided on the drive assembly, which dips into a guide receptacle of the guide device. For example, arcuate guide surfaces or the like can also be provided.

A preferred embodiment of the invention provides that the depth adjustment device has or forms a guide arrangement for guiding the pivoting movement of the drive assembly about the depth adjustment axis relative to the guide device. The depth adjustment device therefore contributes to guiding the drive assembly with respect to the guiding device.

The guide components of this guide arrangement can be provided independently of the setting body, for example they can comprise interlocking guide projections and guide receptacles or corresponding guide slots or surfaces. However, it is preferred if the adjusting body forms a guide component of this guide arrangement.

An expedient variant of the invention provides that the guide depth adjustment element and / or the drive depth adjustment element or both have or form a guide for the adjustment body. For example, the respective depth adjustment element has a guide receptacle for receiving the adjustment body or a guide projection for engaging the adjustment body. Corresponding components are preferably provided on the adjustment body, for example a guide receptacle into which a guide projection of the depth adjustment element engages. If the adjustment body engages in a guide receptacle of a respective depth adjustment element, no special measures are provided under certain circumstances. A guide receptacle is designed, for example, as a guide channel.

A guide receptacle or a guide projection which is provided on the setting body or on a respective depth setting element, for example the drive depth setting element or the guide depth setting element, expediently has an arcuate course. The curvature or arc extends in a predetermined radius around the depth adjustment axis.

It is expediently provided that the guide body is mounted such that it can slide in the respective guide receptacle. The guide body and the sliding receptacle expediently have an arcuate course.

It is preferred if the adjusting body has an arcuate course and / or is rod-shaped. A curvature or an arc shape of the setting body runs, for example, around the depth setting axis with a predetermined radius.

The adjusting body preferably has an elongated shape.

The adjustment body extends, for example, along a path running around the depth adjustment axis.

The setting body is preferably received in a respective guide so that it cannot rotate. For example, the setting body has a polygonal, in particular rectangular, cross section which corresponds to a corresponding non-rotatably receiving inner contour of the guide.

It is advantageously provided that the adjusting body forms a holder or guide for the return spring device. For example, the resetting spring device dips into a receptacle in the adjustment body.

An advantageous variant of the invention provides that the setting body forms a spring holding element of the spring deactivating device. For example, the return spring device can be set in a predetermined deactivation position on the basis of the setting body, so that it does not act on the drive assembly or to a lesser extent in the direction of the upper cutting depth position. This is possible, for example, in that the setting body is fixed in place and held inactive between the setting body and a further spring retaining element, which is preferably formed by the drive depth setting element or the guide depth setting element, using the drive fastening device or the guide fastening device will.

In the case of the hand-held cutting machine, a latching device is advantageously provided for latching the drive assembly to the guide device in at least one cutting depth position. The latching device is formed, for example, by the depth adjustment device or is arranged on it. It is preferably provided that a corresponding latching position can, so to speak, be preselected, for example on the basis of the aforementioned setting body, which can be fixed with respect to the guide device on the basis of the guide fastening device in the respective cutting depth or before the selected cutting depth. It is advantageous here it is provided that the resetting spring device for preselecting the cutting depth is, so to speak, inactive.

The hand cutting machine is preferably a so-called pendulum hood saw. The hand cutting machine can also be a so-called plunge saw. Furthermore, the approach according to the invention can also be easily implemented with cut-off grinders. It is preferred if the hand cutting machine according to the invention can be used both as a pendulum hood saw and as a plunge-cut saw.

The guide device comprises, for example, a so-called saw table which can be guided along by the operator on the workpiece or on a guide rail resting on the workpiece. The depth adjustment bearing enables the desired cutting depth to be set.

A preferred embodiment of the invention provides that the depth adjustment axis is at the front in the working direction. However, it is also conceivable that the depth adjustment axis is arranged at the rear in the working direction.

It is preferably provided that the guide device has a drive carrier on which the drive assembly is mounted pivotably about the depth adjustment axis by means of the depth adjustment bearing.

It would be possible for the drive assembly to be arranged in a stationary manner on the drive carrier. The drive carrier is expediently mounted so as to be pivotable about a miter axis on the basis of a miter bearing arrangement with respect to a guide element having the guide surface, in particular a guide plate. The miter axis expediently runs parallel to the working direction.

The depth adjustment device is advantageously provided between the drive carrier and the drive assembly.

The return spring device, for example, is arranged between the drive support and the drive assembly.

The drive motor of the drive assembly is expediently arranged in a machine housing.

At least one handle for gripping and / or guiding the hand cutting machine is expediently provided or arranged on the drive assembly, for example its machine housing. There are preferably several handles or handle sections. Also on the guide device, for example a saw table, there is expediently at least one handle or handle section for gripping or guiding the hand cutting machine.

The drive motor is expediently an electric drive motor. An energy store is preferably present, for example a battery pack. The hand cutting machine can, however, also be a wired hand cutting machine, for example a connection for connection to an electrical power supply network, for example with 120 V or 230 V. Furthermore, it is easily possible for the hand cutting machine to have both an electrical energy store or an interface for it and a power cable for connection to an electrical energy supply network.

The guide device expediently comprises a guide plate or a saw table. It is preferred if the guide device is provided for interaction with a guide rail. Conveniently, there are rear engagement structures on the guide element and the guide rail so that the guide device is movable along the working direction or longitudinal direction along the guide rail, but cannot be removed from the guide rail transversely to the working direction or longitudinal direction. In this way, chop cuts can be carried out very conveniently.

Figur 1

eine perspektivische Schrägansicht von hinten auf eine Hand-Trennmaschine beim Einbringen eines Sägeschnittes in ein Werkstück in einer oberen Schnitttiefenposition,

Figur 2

die Hand-Trennmaschine gemäß Figur 1 in einer unteren Schnitttiefenposition mit einem Detail X, das eine Anzeigeeinrichtung vergrößert darstellt,

Figur 2A

das Detail X bei teilweise in Richtung der oberen Schnitttiefenposition verstellter Antriebsbaugruppe,

Figur 3

eine Schnittdarstellung der Hand-Trennmaschine gemäß Figur 1, etwa entlang einer Schnittlinie I-I,

Figur 4

die Hand-Trennmaschine in der Schnittdarstellung gemäß Figur 1, jedoch in der unteren Schnitttiefenposition gemäß Figur 2,

Figur 5

die Hand-Trennmaschine gemäß der vorstehenden Figuren, jedoch teilweise schematisch und ohne Handgriff dargestellt etwa entsprechend einer Blickrichtung B in Figur 1 in der oberen Schnitttiefenposition,

Figur 6

die Hand-Trennmaschine in der Ansicht entsprechend Figur 5, jedoch in der unteren Schnitttiefenposition,

Figur 7

die Hand-Trennmaschine in der Ansicht etwa entsprechend Figuren 5, 6, wobei eine Antrieb-Befestigungseinrichtung in die Lösestellung verstellt ist (gestrichelt dargestellt),

Figur 8

die Hand-Trennmaschine etwa in der Stellung gemäß Figur 7, jedoch von der entgegengesetzten Seite her (etwa entsprechend einer Blickrichtung C in Figur 1),

Figur 9

eine Führungseinrichtung sowie einen Antriebsträger der Hand-Trennmaschine perspektivisch schräg von oben,

Figur 10

eine perspektivische Schrägansicht der Hand-Trennmaschine zusammen mit einer Führungsschiene, und

Figur 11

die Hand-Trennmaschine beim Einschneiden in ein Werkstück von der Seite her.

An exemplary embodiment of the invention is explained below with reference to the drawing. Show it:

Figure 1

a perspective oblique view from behind of a hand cutting machine when making a saw cut in a workpiece in an upper cutting depth position,

Figure 2

the hand cutting machine according to Figure 1 in a lower cutting depth position with a detail X that shows a display device enlarged,

Figure 2A

Detail X with the drive assembly partially adjusted in the direction of the upper cutting depth position,

Figure 3

a sectional view of the hand cutting machine according to Figure 1 , approximately along a section line II,

Figure 4

the hand cutting machine in the sectional view according to Figure 1 , but in the lower cutting depth position according to Figure 2 ,

Figure 5

the hand cutting machine according to the preceding figures, but partly shown schematically and without a handle approximately corresponding to a viewing direction B in Figure 1 in the upper cutting depth position,

Figure 6

the hand ripper in the view accordingly Figure 5 , but in the lower cutting depth position,

Figure 7

the hand cutting machine in the view roughly accordingly Figures 5, 6 , wherein a drive fastening device is adjusted into the release position (shown in dashed lines),

Figure 8

the hand cutting machine approximately in the position according to Figure 7 , but from the opposite side (roughly corresponding to a viewing direction C in Figure 1 ),

Figure 9

a guide device as well as a drive carrier of the hand cutting machine in perspective at an angle from above,

Figure 10

a perspective oblique view of the hand cutting machine together with a guide rail, and

Figure 11

the hand cutting machine when cutting into a workpiece from the side.

A hand cutting machine 10 according to the drawing is designed as a sawing machine. A drive assembly 11 has a drive motor 12 for rotating a tool holder 13 about an axis of rotation D. The drive assembly 11 comprises a machine housing 35 which accommodates the drive motor 12. A disk-shaped cutting tool, for example a cutting disk or a saw blade, can be releasably attached to the tool holder 13.

The cutting tool 14 is, for example, screwed to the tool holder 13, fastened by means of a bayonet connection or the like. Bayonet connection means, screw connection means, a retaining screw or the like for fastening the cutting tool 14 to the tool holder 13 are therefore present on the tool holder 13.

The drive assembly 11 can be gripped and guided by a handle 15 by an operator. A switch 16 for switching the drive motor 12 is arranged on the handle 15, in particular also for setting its speed. The drive motor 12 is an electric motor. It can be supplied with power, for example, via a power cord not shown in the drawing. However, a local energy supply on board the hand cutting machine 10 is particularly preferred, for example using a rechargeable battery or other energy storage device 17.

The handle 15 expediently extends in the working direction A of the hand-held cutting machine 10, with which the latter can be guided, for example, along a workpiece such as or along a guide rail 90 for making a cutting cut T in the workpiece W.

The hand-held cutting machine 10 has a fixed cover 18 and a movable cover device 19 for covering and covering the cutting tool 14. For example, the fixed cover 18 forms part of the machine housing 35 or is arranged in a stationary manner on it. The fixed cover 18 is always on the top of the workpiece W or the top of the guide rail 90 when the hand-held cutting machine 10 is in operation. The movable cover device 19, on the other hand, covers, so to speak, the underside or the free side of the cutting tool 14, especially when it is apart of the workpiece W is located. Thus, when the hand-held cutting machine 10 is not in use, the cutting tool 14 is generally also arranged completely within the cover 18 and the cover device 19, so that the operator cannot injure himself even if the cutting tool 14 is still rotating.

The hand cutting machine 10 has a guide device 20 with a guide element 21, for example a guide plate. The guide element 21 is designed, for example, as a saw table. The drive assembly 11 is mounted on the guide device 20 by means of a depth adjustment bearing 36 so that it can pivot about a depth adjustment axis TA. Thus, a cutting depth ST of the cutting tool 14 into the workpiece W can be changed. A pivoting of the drive assembly 11 with respect to the guide device 20 about the depth adjustment axis TA is possible in FIG Figure 10 indicated by an arrow P.

The depth adjustment axis TA is located at the front in the working direction A, close to a front side 24 of the guide device 20. The saw blade or cutting tool 14, on the other hand, is arranged on the right-hand side 22 in working direction A or the longitudinal side of the guide device 20 or the guide element 21. The drive assembly 11 is located between the side 22 and a left side 23 of the guide element 21 or the guide device 20 in the working direction A.

The cutting tool 14 protrudes partially to an upper side 26 of the guide element 21, partially protrudes in front of a guide surface 27 on the underside of the guide element 21, namely when the drive assembly 11 from the in Figure 1 upper cutting depth position SO shown is at least partially adjusted or pivoted in the direction of a lower, for example the lowermost cutting depth position SU. It is preferably provided that the cutting tool 14 does not protrude in front of the guide surface 27 in the upper cutting depth position SO.

A handle 28, which protrudes for example in front of an upper side of the guide element 20 and is preferably toggle-like, facilitates the guidance and handling of the hand cutting machine 10. The handle 28 is arranged in front of the handle 15 in the working direction A.

Between the front side 24 and a rear or rear side 25 of the guide element 21 in the working direction A, expediently parallel to the working direction A, in a longitudinal direction L of the guide rail 90, a longitudinal guide receptacle 33 for longitudinal guidance on a longitudinal guide projection 93 of the guide rail 90 and / or a rear engagement receptacle 34 for engagement from behind by an engagement projection 94 of the guide rail 90. The longitudinal guide projection 93 and the engagement projection 94 are arranged, for example, on an upper guide surface 92 of a rail body 91 of the guide rail 90. The guide device 21 can be guided on the longitudinal guide projection 93 in the working direction A and consequently in the longitudinal direction L of the guide rail 90. This can be placed with its underside 95 on the workpiece W, for example, so that precise and straight saw cuts or separating cuts are possible in this way. The engagement protrusion 94 and the engagement support 34 ensure that the guide rail 90 is held on the guide device 20 transversely to the longitudinal direction L, so that the entire unit consisting of the hand cutting machine 10 and the guide rail 90 can be taken from the workpiece W to another workpiece by an operator, without the latter taking hold of both components.

The drive assembly 11 is pivotably mounted with respect to the guide element 21 about a miter axis GA, which is parallel to the working direction A (corresponding to an arrow G in FIG Figure 10 ). For example, a drive carrier 40 is based on a miter bearing arrangement 30 on the guide device 20 around the Miter axis A pivoted. A miter bearing arrangement 30 is provided between the guide element 21 and the drive carrier 40. The miter bearing arrangement 30 is located close to the tool holder 13, that is to say on the right-hand side 22 in the working direction A or on the long side.

The miter bearing arrangement 30 comprises a front miter bearing 31 in the working direction A and a rear miter bearing 32 in the working direction A.

The depth adjustment bearing 36 is arranged in front of the front miter bearing 31 in the working direction A. As a result, an exit area of the cutting tool 14 from the workpiece W can be viewed particularly favorably.

The miter bearings 31, 32 include bearing elements 37, 38 which protrude upward in front of the guide element 21. On these counter bearing sections 41, 42 of the drive carrier 40 are pivotably mounted. The bearing elements 37, 38 and the counter bearing sections 41, 42 are, for example, plate-like. Using fixing elements, for example clamping screws or the like, in particular only a single clamping screw 39, the counter bearing sections 41, 42 can be braced with the bearing elements 37, 38 so that a respective miter position or miter inclined position of the cutting tool 14 relative to the guide surface 27 can be fixed. Often the cutting tool 14 will be at right angles to the guide surface 27, as shown regularly in the drawing.

The bearing element 37 preferably protrudes through a passage opening 45 in the drive carrier 40.

In front of the front miter bearing 31 there is a support arm 46 of the drive carrier 40, on which a support arm 29 of the drive assembly 11 is mounted. Bearing projections 47 protrude laterally from the support arm 46 and engage in corresponding bearing receptacles of the support arm 29. The bearing projections 47 extend along the depth adjustment axis TA. The support arm 29 and thus the drive assembly 11 therefore pivot on the bearing projections 47 of the depth adjustment axis 36 about the depth adjustment axis TA.

A depth adjustment device 50 is provided at a longitudinal distance from the depth adjustment bearing 36. Several functions can be implemented with the depth setting device 50, namely, for example, a display of a respective cutting depth position and / or a stop function with which the drive assembly 11 strikes in a preferably adjustable cutting depth position with respect to the guide device 20 and / or a fixing function to move the drive assembly 11 in a predetermined or to fix the adjustable cutting depth position ST with respect to the guide device 20.

The depth adjustment device 50 comprises an adjustment body 51, which is movably mounted with respect to a guide depth adjustment element 70 which is stationary with respect to the guide device 20 and a drive depth adjustment element 60 which is stationary with respect to the drive assembly 11. The guide depth adjustment element 70 is provided on the drive carrier 40, for example.

The adjusting body 51 is rod-shaped, but not straight, but curved. It has a curvature which has a fixed radius around the depth adjustment axis TA, and consequently runs in an arc around the depth adjustment axis TA.

The adjustment body 51 is slidably received in a guide receptacle 72 of the guide depth adjustment element 70. The guide receptacle 72 has an arcuate course corresponding to the curvature or the arc shape of the setting body 51. The setting body 51 can thus be moved in the guide receptacle 72 around a curved path KB, the curvature or radius of which is constant with respect to the depth setting axis TA.

The guide receptacle 72 comprises a guide wall 71 radially outward with respect to the curved path KB and a radially inner support contour 73 with respect to the curved path KB.Long sides 54, 53 of the adjustment body 51 are supported on the guide wall 71 and the support contour 73, which advantageously form components of the drive carrier 40 . The long side 54 is smooth, while the long side 53, as will become clear below, has a toothing 58. The longitudinal sides 53, 54 have an arcuate course.

A guide receptacle 52 extends between the lower longitudinal end region 55 and an upper longitudinal end region 56 of the setting body 51, into which the drive guide element 60 with a guide projection 62 dips.

The longitudinal sides 54, 53 extend between the longitudinal end regions 55, 56 of the adjusting body 51. The adjusting body 51 is, for example, approximately rectangular or square in cross section. The adjusting body 51 could, however, also have other cross-sectional contours, for example also a circular cross-sectional contour.

Long sides, not designated in detail, of the setting body 51 extending between the narrow sides or longitudinal sides 53, 54 are supported on the one hand on a side wall 48 of the machine housing 35 and on the other hand on a support wall 44 of the drive carrier 40. The support wall 44 is located between the guide wall 71 and the support contour 73 and delimits the guide receptacle 72 laterally ( Figures 8, 9 ).

A longitudinal end region 55 of the adjusting body 51 facing the guide device 20 can abut against a base 74 of the guide receptacle 72 when it is in its in the Figures 3 and 4 shown lower position is adjusted.

The adjustment body 51 is movably supported on the drive assembly 11 with respect to the drive depth adjustment element 60. The guide projection 62 projects in front of a head 61 of the drive depth adjustment element 60. The head 61 of the drive guide element 60 is fixed in place, for example, on the machine housing 35, expediently in the vicinity of the handle 15. The guide projection 62 has a rod-like shape and projects towards the guide device 20 in front of the head 61.

Furthermore, it is possible that on the drive assembly 11 further guide components, for example a guide slot 63 and one opposite it Guide wall 64 are provided, between which the adjusting body 51 is slidably adjustable. The guide wall 64 and the guide slot 63, which is also designed in the manner of a wall, for example, delimit an arcuate guide receptacle 63a for the adjustment body 51.

The guide projection 62 has a course that is just as arcuate as the adjustment body 51 and the guide receptacle 72 and the guide receptacle 52 and the guide receptacle 63a.

Thus, these guide components can interact with one another in the sense of a guide relative to one another or with one another, in particular they can engage with one another. As a result, a guide arrangement 75 is created overall, which guides the drive assembly 51 at a distance from the depth adjustment bearing 36 when pivoting about the depth adjustment axis TA.

There is an interspace or spacing between the guide projection 62 and the guide receptacle 51 of the adjustment body 51. A return spring device 65 with a return spring 66 is arranged at this distance. The return spring 66 is a coil spring. The guide projection penetrates the return spring 66. An outer circumference of the return spring 66 rests against the inner circumference of the guide receptacle 52, for example. The restoring spring 66 is expediently supported with its one longitudinal end on a base 59 of the guide receptacle 52 provided on the longitudinal end region 56, and with its other longitudinal end on the head 61 of the drive depth adjustment element 60. The return spring device 65 thus loads the drive assembly 11 in the direction of the upper cutting depth position SO.

This spring action could in principle be provided permanently, but can be deactivated in the present case. In this context, the adjusting body 51 plays an advantageous and / or essential role.

The adjustment body 51 can optionally be releasably connected to the guide device 20, in particular its drive carrier 40, and to the drive assembly 11, for which a guide fastening device 80 and a drive fastening device 100 are provided.

The drive fastening device 80 comprises a holding element 81 which has a form-fit projection 82 for engaging in a form-fit receptacle 57a of the adjusting body 51. The form-fit receptacle 57 is arranged, for example, on the longitudinal end region 56 of the setting body 51, in any case on a section of the setting body 51 protruding far in front of the guide device 20.

The interlocking projection 82 is provided, for example, on a holding arm 88 of the holding element 81. An actuating arm 83 protrudes from the holding arm 81. The operating arm 83 is arranged, for example, so that it can be easily grasped by the operator. For example, the actuating arm 83 projects towards the handle 15. The holding element 81 can be pivoted about a pivot axis by means of a pivot bearing 84, so that it can be adjusted between a holding position (shown in solid lines) and a release position (shown in dashed lines). In the release position, the holding element 81 strikes a stop 85, for example. For example, the actuating arm 83 strikes the stop 85, which is, for example, plate-like. In the holding position, the form-fit projection 82 or the holding arm 88 engages in the form-fit receptacle 57a on the adjustment body 51, so that the latter is connected to the drive assembly 11.

The holding element 81 is urged in the direction of the holding position by a spring arrangement 87. When the holding element 81 is adjusted into the release position, the spring arrangement 87 is tensioned. For example, an actuating projection 86 is provided which acts on the spring arrangement 87. The spring arrangement 87 is supported on the one hand on the actuating projection 86 and on the other hand on a holder 89, for example a receiving chamber, for the spring arrangement 87. The holder 89 is provided in a stationary manner on the drive assembly 11.

Due to the spring loading on the basis of the spring arrangement 87, the holding element 81 is designed in the manner of a latching device or forms a latching element. At An actuating contour 57, for example an actuating bevel, is provided in the upper longitudinal end region 55 of the setting body 51 in order to deflect the holding element 81 in the direction of the release position, the setting body 51 then being able to slide past the holding arm 88 until it with its form-fit projection 82 enters the form-fit receptacle 57a locks into place, so to speak. The resetting spring device 65 is then, so to speak, firmly locked between the drive depth adjustment element 60 and the adjustment body 51, which is no longer adjustable or fixed relative to the drive depth adjustment element 60, and is thus ineffective or deactivated. The operator can thus set an immersion depth or cutting depth position ST without the resetting spring device 65 acting in the direction of the upper cutting depth position SO. The setting body 51 and the drive depth setting element 60 thus form spring holding elements for holding the return spring device 65 in a deactivation position. The depth adjustment device 50 thus forms a spring deactivation device 76 in this function.

Structurally, the arrangement of the resetting spring device 65 in the depth adjustment device 50 has the advantage that as few components as possible are necessary and the installation space is optimally used. For example, the resetting spring device 65 does not or hardly stands in the way of a suction of chips or the like.

At this point it should be noted that, of course, a return spring device would also be possible at another point, which is exemplified with the aid of the in Figure 5 indicated return spring device 165 is indicated. This is supported, for example, directly on the guide element 20 and the drive assembly 11. An additional guide, for example a guide sleeve or a guide rod, for the return spring device 165 is easily possible (not shown).

The adjustment body 51 can be firmly connected to the drive assembly 11 by means of the drive fastening device 80 and makes it with the drive assembly 11 connected state their pivoting movements about the depth adjustment axis TA with. Thus, for example, a display scale 67 on the setting body 61 can be adjusted relative to an index 68 for using the hand-held cutting machine 10 without the guide rail 90 or a stepped index 69 for using the hand-held cutting machine 10 with the guide rail 90. The indices 68, 69 together with the display scale 67 indicate the respective cutting depth position ST of the cutting tool 14 with respect to the guide surface 27. As mentioned, the resetting spring device 65 is deactivated, so it does not interfere with the depth setting.

Using the guide fastening device 100, the setting body 51 can be fixed in a stationary manner with respect to the guide device 20, more precisely with respect to its drive carrier 40. This fixation or fixing can also be released. A holding element 101 of the guide fastening device can, like the holding element 81, from a holding position holding the setting body 51 in a form-fitting manner, in which a toothing 102 on a holding arm 108 of the holding element 101 engages in a complementary toothing 58 on the setting body 51, in particular its longitudinal side 53 a release position (indicated by an arrow P1 in Figure 6 indicated), in which the teeth 58, 102 do not mesh with one another. The setting element 51 is then adjustable, namely displaceable, relative to the guide device 20.

The holding element 101 is pivotably mounted on a pivot bearing 104. An actuating arm 103 protrudes from the holding arm 108, for example at right angles. The handling of the holding element 101 is facilitated by the fact that an abutment arm 43 lies opposite the actuating arm 103, so that an operator can grasp the actuating arm 103 and the abutment arm 43 with, for example, two fingers and move them towards one another in order to fix the setting body 51 with respect to the guide device 20 to be released with the aid of the guide fastening device 100, that is to say to actuate the holding element 101 into the release position. The actuating arm 103 and the abutment arm can therefore be moved towards one another in the manner of pliers (arrow P2).

The holding element 101 is acted upon by a spring arrangement 107 in the direction of the holding position. In the direction of the release position, the holding element 101, in particular its holding arm 108, strikes a stop 105.

The holding elements 81, 101 are preferably designed in the manner of holding pawls.

The toothing 102 is preferably arranged on a free end region or longitudinal end region of the holding arm 108. It can therefore act on the counter-toothing 58 with a relatively high leverage, which enables a particularly firm hold. The toothings 58, 108 make it possible for the adjustment body 51 to be fixable in different longitudinal positions with respect to the guide depth adjustment element 70. The setting body 51 can thus dip into the guide receptacle 72 at different depths and then be fixed in place with respect to the guide device 20 by means of the guide fastening device 100. Thus, numerous cutting depth positions can be defined. Of course, instead of the relatively fine corrugation or toothing 58, 108, a frictional engagement surface, a clamping surface or the like could also be provided, which likewise make a plurality of cutting depth positions adjustable.

At this point it should be noted that, of course, an alternative drive fastening device to the drive fastening device 80 can comprise a clamping device.

Furthermore, in addition to the form-fit receptacle 57a, at least one further form-fit receptacle, a friction surface or the like could be provided as an abutment contour for the holding element 81 or an alternative holding element provided, for example, as a clamping element or friction-fit holding element.

The setting body 51, which can be fixed in different cutting depth positions with the aid of the guide fastening device 100, preferably forms a stop for operating the hand-held cutting machine 10 as a plunge-cut saw or Immersion ripper. The longitudinal end region 56, so to speak the head of the adjusting body 51, is positioned at the desired cutting depth, determined by means of the guide fastening device 100, so that it can represent a stop 56a for the drive assembly 11. For example, the head 61 of the drive depth setting element 60 strikes with its underside 61a, which forms a stop, on the setting body 51, the stop 56a.

The operator can therefore press the drive assembly 11 against the force of the return spring device 65 towards the guide device 20 and thus let the cutting tool 14 dip into the workpiece W. At the immersion depth or cutting depth set in this way, the drive fastening device 80 then engages in the setting body 51, so that the tool holder 13 is fixed in place with respect to the guide device 20 in the cutting depth position determined by the guide fastening device 100.

Of course, it is alternatively also possible for this locking function to be deactivated, so to speak. For example, this is possible in that the spring arrangement 87 can be inactivated, for example, by a holder. Furthermore, it is also possible that the holding element 81 is designed in the manner of a bolt, i.e. has to be shifted or pivoted manually between the release position and the holding position and thus also remains in the release position without the application of spring force.

The guide fastening device 100 and the drive fastening device 80 each enable the drive assembly 11 to be latched in a respective cutting depth position ST relative to the guide device 20. The depth adjustment device 50 thus forms a fixing device 77 or a latching device 78 for fixing or latching the drive assembly 11 in a respective cutting depth position ST with respect to the guide device 20.

It is also possible that, in a hand cutting machine according to the invention, there is no movable setting body in the manner of the setting body 51 is provided, but that the counter-locking contour is fixedly connected to the drive assembly or the guide device, so to speak, and a locking element cooperating with this counter-locking contour, for example in the manner of the holding elements 81 or 101, is provided.

The movable cover device 19 is designed in the manner of a pendulum hood. The cover device 19 pivots about the axis of rotation D, that is, in a pendulum movement or pivoting movement, releases the severing tool 14 for making a severing cut T.

The cover device 19 is, for example, from its in Figure 10 shown closed position S, in which it at least substantially completely covers the cutting tool 14, in an at least partially open open position O according to Figure 11 adjustable. The opening movement can be achieved, for example, in that a front, free end region 120 of the covering device 19 strikes the workpiece W on the side. In the opposite direction, ie in the direction of the closed position S, a spring arrangement preferably acts, for example the closing spring 135 mentioned below. As a result, the cover device 19 expediently always covers the cutting tool 14 when the hand cutting machine 10 is not in use.

A type of fin or fin, in any case a cutting wedge or guide element 121, is expediently arranged on the end region 120. The guide element 121 dips, for example, into the separating slot T on the workpiece and thus ensures a straight separating cut, in particular when operating without the guide rail 90.

However, it is also possible for an operator to manually actuate the cover device 19 from the closed position S into the open position O. For this purpose, an actuating device 130 is provided which has an actuating element 131 which can be actuated manually by an operator. The actuating element 131 has an actuating arm 132 which is designed in the manner of an actuating lever. The actuating arm 132 is pivotable on a pivot bearing 133 stored, whereby when actuated it pivots about the pivot bearing 133 and can adjust a driver lever 134 from the position shown in solid lines, assigned to the closed position of the cover device 19, into a position shown in dashed lines, assigned to the open position O of the cover device 19. The driver lever 134 actuates a cable mechanism, not shown in detail, which, so to speak, opens the cover device 19, that is to say actuates it into the open position. A closing spring 135 acts in the opposite direction, for example on the driver lever 134.

Claims (15)

1. Manually operated cutting machine, in particular sawing machine, with a drive assembly (11) having a tool holder (13) for a disc-type cutting tool (14), in particular a saw blade, and a drive motor (12) for the rotary drive of the tool holder (13), and with a guide device (20), which can be guided along a ground with a guide surface (27) and at which the drive assembly (11) is mounted pivotably about a depth setting axis (TA) between an upper and a lower cutting depth position (SU) by means of a depth setting bearing (36), wherein the tool holder (13) is closer to the guide surface (27) in the lower cutting depth position (SU) than in the upper cutting depth position (SO), so that the cutting tool (14) projects farther in front of the guide surface (27) than in the upper cutting depth position (SO), wherein the manually operated cutting machine (10) has a hood-type covering device (19) for covering the cutting tool (14), which is mounted pivotably with respect to the drive assembly (11) between an open position (O) and a closed position (S) and which uncovers in the open position (O) a section of the cutting tool (14) projecting in front of the guide surface (27) for producing a parting cut in a workpiece (W) and covers in the closed position (S) the cutting tool (14), wherein the drive assembly (11) is loaded towards the upper cutting depth position (SO) by a return spring device (65), characterised in that it has a spring deactivation device (76) for the at least partial deactivation of the return spring device (65), so that the return spring device (65) does not load the drive assembly (11) towards the upper cutting depth position (SO).
2. Manually operated cutting machine according to claim 1, characterised in that the spring deactivation device (76) has a first and a second spring holding element, which are or can be connected to the drive assembly (11) or to the guide device (20) in a fixed position.
3. Manually operated cutting machine according to claim 1 or 2, characterised in that the spring deactivation device (76) forms a fixed or integral part of the manually operated cutting machine, and/or in that the spring deactivation device (76) remains on board of the manually operated cutting machine even in the deactivated state of the return spring device (65) and/or can be operated without the use of tools and/or by an actuating element permanently present on board of the manually operated cutting machine.
4. Manually operated cutting machine according to any of the preceding claims, characterised in that the covering device (19) is spring-loaded towards the closed position (S) by a spring assembly (135).
5. Manually operated cutting machine according to any of the preceding claims, characterised in that it has a manual actuating device (130) located at the drive assembly (11) in particular for moving the covering device (19) from the closed position (S) into the open position (O).
6. Manually operated cutting machine according to any of the preceding claims, characterised in that it has a depth setting device (50) for setting the respective cutting depth position and/or a guide assembly (75) for guiding the pivoting movement of the drive assembly (11) about the depth setting axis (TA) relative to the guide device (20).
7. Manually operated cutting machine according to claim 6, characterised in that the return spring device (65) forms a part of the depth setting device (50) or of the guide assembly (75) or is located at the depth setting device (50) or at the guide assembly (75).
8. Manually operated cutting machine according to claim 6 or 7, characterised in that the return spring device (65) comprises a spring located between guide elements of the guide assembly (75) or of the depth setting device (50) and guided by at least one of the guide elements.
9. Manually operated cutting machine according to claim 8, characterised in that the guide elements comprise a guide projection and a guide receptacle (52, 72), with which the guide projection engages, and in that the return spring device (65) is located between the guide projection and the guide receptacle (52, 72).
10. Manually operated cutting machine according to any of claims 6 to 9, characterised in that the depth setting device (50) or the guide assembly (75) forms or has the spring deactivation device (76).
11. Manually operated cutting machine according to any of claims 6 to 10, characterised in that the depth setting device (50) for setting the respective cutting depth position (SU, SO) has a guide depth setting element (70) connected to the guide device (20) and a drive depth setting element (60) connected to the drive assembly (11) and adjusted relative to the guide depth setting element (70) when adjusting the cutting depth position (SU, SO), as well as a setting body (51) providing at least one setting functionality, and in that the setting body (51) is mounted movably with respect to the guide depth setting element (70) and the drive depth setting element (60) and can be releasably attached to the drive depth setting element (60) by means of a drive fastening element (80) and to the guide depth setting element (70) by means of a guide fastening element (100).
12. Manually operated cutting machine according to claim 11, characterised in that the at least one setting functionality comprises a stop function in which the setting body (51) serves as a stop element for stopping the drive assembly (11) in at least one cutting depth position (SU, SO) and/or an indicating function in which the setting body (51) serves as an indicating element for indicating a respective cutting depth position (SU, SO) and/or a fixing function in which the setting body (51) serves as a fixing element for fixing the drive assembly (11) with respect to the guide device (20) in at least one cutting depth position (SU, SO).
13. Manually operated cutting machine according to claim 11 or 12, characterised in that the depth setting device (50) has or forms a fixing device (77) for fixing the drive assembly (11) with respect to the guide device (20) in at least one cutting depth position (SU, SO), preferably in a first and at least one second cutting depth position (SU, SO), and/or in that the setting body (51) forms a holder or guide for the return spring device (65) and/or has a receptacle for the return spring device (65) and/or is designed for the deactivation of the return spring device (65).
14. Manually operated cutting machine according to any of the preceding claims, characterised in that it has a latching device (78) for latching the drive assembly (11) in at least one cutting depth position (SU, SO).
15. Manually operated cutting machine according to any of the preceding claims, characterised in that the guide device (20) has a drive support at which the drive assembly (11) is pivotably mounted by means of the depth setting bearing (36), wherein the drive support is mounted pivotably about a mitre axis (GA) extending at right angles to the depth setting axis (TA) with respect to a guide element having the guide surface (27).

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