Patent Description:
The present disclosure also relates to a cutter clamp kit and cutter clamp and holding frame systems.

When a pipe or similar is to be cut, for example during construction or due to a water leak, a cutting fixture in the form of a cutter clamp is mounted to the pipe and is connected to a power cutter, for example a suitable chain saw. The cutter clamp is normally in the form of a claw arrangement with a three-point grip that is mounted such that it partly circumvents the pipe to which it is mounted. The power cutter is then connected to the cutting fixture such that it is held in a pivoting manner, for example as described in <CIT>. This results in stable and fixed working positions and provides a straight cut.

Document <CIT> discloses a cutter clamp that comprises a first arm part and a second arm part, where the arm parts are arcuate and arranged to adjustably at least partially enclose a major part of a circumference having a center, where the cutter clamp comprises at least one rod arranged for receiving a mounting hollow cylinder of a power cutter in a pivoting manner, the arm parts comprise a corresponding first end and second end, where a first arm second end is attached to the second arm in a pivoting manner by means of an arm attachment rod between a second arm first end and a second arm second end, where the second arm part comprises a first screw holder in the form of a pivoting rod positioned between the first arm second end and the second arm second end.

It is therefore desired to provide a cutter clamp that decreases the risk of kick-back of the guide bar, and which enables the use of a power cutter with a smaller guide bar.

It is also desired to provide a cutter clamp that is versatile and possible to use for different types of power cutters.

It is also desired to provide suitable means for attaching a cutter clamp to a power cutter.

It is an object of the present disclosure to provide a cutter clamp that prevents kick-back of the guide bar, and which enables the use of a power cutter with a smaller guide bar.

This object is achieved by means of a cutter clamp defined by the features of claim <NUM>.

This provides an advantage related to that a shorter guide bar can be used, resulting in a saw that is easier to handle and where the risk of kick-back of the guide bar is reduced, also enabling an enhanced cutting angle.

According to some aspects, the cutter clamp comprises a locking screw that is rotatably attached to a first screw holder and is arranged to engage threads comprised in a second screw holder such that turning the locking screw enables the adjustment of the arm parts.

This provides an advantage related to that the cutter clamp can be easily adjusted. According to some aspects, the cutter clamp comprises a first intermediate part and a second intermediate part, where the intermediate parts connect the arm parts. The locking screw at least partly runs via the intermediate parts.

This provides an advantage related to that the locking screw runs in a rigid manner such that a secure clamping of a pipe can be obtained.

According to some aspects, when the arm parts are adjusted, each hollow rod moves relative the rest of the cutter clamp by sliding in a corresponding elongated slot formed in a corresponding arm part.

This provides an advantage related to that a symmetrical clamping arrangement is provided.

According to some aspects, the arm parts comprise a corresponding first end and second end, where a first arm second end is attached to the second arm in a pivoting manner by means of an arm attachment rod between a second arm first end and a second arm second end.

This provides an advantage related to that an uncomplicated cutter clamp is provided.

It is also an object of the present disclosure to provide a cutter clamp that is versatile and possible to use for different types of power cutters.

This object is achieved by means of a cutter clamp that comprises a first arm part and a second arm part, where the arm parts are arcuate and arranged to adjustably at least partially enclose a major part of a circumference having a center. The cutter clamp comprises one hollow rod arranged for receiving a mounting rod of a power cutter in a pivoting manner. The cutter clamp comprises a locking screw that is rotatably attached to a first screw holder and is arranged to engage threads comprised in a second screw holder such that turning the locking screw enables the adjustment of the arm parts. The arm parts comprise a corresponding first end and second end, where a first arm second end is attached to the second arm in a pivoting manner by means of an arm attachment rod between a second arm first end and a second arm second end. The hollow rod is positioned between the first screw holder and the second arm second end.

This provides an advantage related to that a cutter clamp that is versatile and possible to use for different types of power cutters, such as a ring saw, is provided. According to some aspects, the second arm part comprises the first screw holder positioned between the first arm second end and the second arm second end, where the first arm part comprises an attachment rod that is attached to the second screw holder.

It is also an object of the present disclosure to provide suitable means for attaching a cutter clamp to a power cutter.

This object is also achieved by means of a cutter clamp kit according to claim <NUM>, that comprises a cutter clamp and a power transfer cover.

This object is also achieved by means of a cutter clamp and holding frame system according to claim <NUM>.

This provides an advantage related to that an uncomplicated and easily attachable means for attaching a cutter clamp to a ring saw is provided. The holding frame is versatile since the mounting rod is releasably attachable.

This object is also achieved by means of a cutter clamp and holding frame system according to claim <NUM>.

This provides an advantage related to that an uncomplicated and easily attachable means for attaching a cutter clamp to a ring saw is provided. The holding frame is rigid since the mounting rod is mounted to the first leg part in a fixed manner.

The present disclosure will now be described more in detail with reference to the accompanying figures wherein:.

As shown in <FIG>, there is power cutter, here in the form of a chain saw <NUM>, that comprises a motor <NUM>, a handle <NUM> with a power control <NUM>, a guide bar <NUM> with a saw chain <NUM> and a clutch cover <NUM> that is arranged to cover a power transferring arrangement that is adapted to transfer power from the motor <NUM> to the saw chain <NUM>, suitably in the form of a clutch and a transmission.

With reference to <FIG>, <FIG>, <FIG> and <FIG>, a first example of a cutter clamp will be described. <FIG> shows a perspective side view of a cutter clamp <NUM> that is attached to a pipe <NUM>, <FIG> shows a top perspective view of a cutter clamp <NUM>, <FIG> shows a bottom perspective view of a cutter clamp <NUM>, and <FIG> shows a side perspective view of a cutter clamp <NUM> with a guide bar mounted. Due to different perspectives and levels of detailing, all Figures mentioned above do not show all details.

The cutter clamp <NUM> comprises a first arcuate arm part <NUM> and a second arcuate arm part <NUM>, where the arm parts <NUM>, <NUM> are arcuate such that they are arranged to adjustably embrace and at least partially enclose a major part of a circumference <NUM> having a center <NUM>. The arm parts <NUM>, <NUM> comprise a corresponding first end <NUM>, <NUM> and second end <NUM>, <NUM>, where the first ends <NUM>, <NUM> are arranged to be located closer to the pipe <NUM> than the second ends <NUM>, <NUM> when the cutter clamp <NUM> is attached to a pipe <NUM>. The cutter clamp <NUM> further comprises a first intermediate part <NUM>, a second intermediate part <NUM> and a locking screw <NUM>, where the intermediate parts <NUM>, <NUM> connect the arm parts <NUM>, <NUM>, and where the locking screw <NUM> runs through the intermediate parts <NUM>, <NUM>. The first intermediate part <NUM> is arranged to be located closer to the first ends <NUM>, <NUM> than the second intermediate part <NUM>. The circumference <NUM> and center <NUM> are only imaginary and are only shown in <FIG>; the circumference <NUM> can according to some aspects represent an outer circumference of a pipe.

The arm parts <NUM>, <NUM> are sandwiched between outer plates <NUM>, <NUM> of the first intermediate part <NUM>, which outer plates <NUM>, <NUM> are separated in an extension L, and are connected by a first screw holder <NUM> that comprises a aperture <NUM> for receiving the and retaining an end of the locking screw <NUM> in a rotatable manner, and two connecting hollow rods; a first connecting hollow rod <NUM> and a second connecting hollow rod <NUM> that run mutually parallel along the extension L. The first arm part <NUM> comprises a first elongated slot <NUM> and the second arm part <NUM> comprises a second elongated slot <NUM>, where the first hollow rod <NUM> runs through the first elongated slot <NUM> and the second hollow rod <NUM> runs through the second elongated slot <NUM>. When a pipe <NUM> is attached to the cutter clamp <NUM>, it has a longitudinal extension that coincides with the extension L.

The arm parts <NUM>, <NUM> are also sandwiched between outer plates <NUM>, <NUM> of the second intermediate part <NUM>, which outer plates <NUM>, <NUM> are separated in the extension L and are connected by a second screw holder <NUM> and connecting rods, a first connecting rod <NUM> and a second connecting rod <NUM>. The second screw holder <NUM> comprises a threaded aperture <NUM> for receiving the locking screw <NUM>, and the connecting rods <NUM>, <NUM> connect the arm parts <NUM>, <NUM> in a pivoting manner.

The cutter clamp <NUM> is arranged to contact a pipe by means of contact rods <NUM>, <NUM> attached to the first ends <NUM>, <NUM> of the arm parts <NUM>, <NUM> and by means of a contact plate <NUM> connected to the outer plates <NUM>, <NUM> of the first intermediate part <NUM>. When the locking screw <NUM> is rotated, the end that is retained in the first screw holder <NUM> rotates and is moved towards or away from the second screw holder <NUM> since the locking screw <NUM> engages threads in the threaded aperture <NUM>. This means that the end that is retained in the first screw holder <NUM> is rotatably secured to the first screw holder <NUM>, such that the relative position of the locking screw <NUM> and the screw holder <NUM> is maintained upon rotation of the screw.

In this manner, with reference also to <FIG> and <FIG> showing the cutter clamp <NUM> adapted for two different pipe dimensions 9a, 9b, for a first direction of rotation of the locking screw <NUM>, the contact surface <NUM> is brought closer to the contact rods <NUM>, <NUM>, and the contact rods are brought closer to each other. The connecting hollow rods <NUM>, <NUM> then slide in the corresponding elongated slots <NUM>, <NUM> towards the second intermediate part <NUM>. For an opposite second direction of rotation of the locking screw <NUM>, the contact surface <NUM> is brought away from the contact rods <NUM>, <NUM>, and the contact rods <NUM>, <NUM> are brought away from each other. The connecting hollow rods <NUM>, <NUM> then slide in the corresponding elongated slots <NUM>, <NUM> away from the second intermediate part <NUM>. For the first direction of rotation, if a pipe <NUM>, 9a, 9b would be positioned in the cutter clamp <NUM>, the contact surface <NUM> and the contact rods <NUM>, <NUM> would be brought into contact with the pipe <NUM>, 9a, 9b, holding the pipe. For the second direction of rotation, a retained pipe <NUM>, 9a, 9b would be released.

The chain saw <NUM> is arranged to be attached to the cutter clamp <NUM> in such a way that stable and fixed working positions are obtained, enabling a straight cut, as will be described more in detail in the following. For this purpose, the chain saw <NUM> comprises a mounting rod <NUM> that is arranged to be attached to the cutter clamp <NUM>.

According to the present disclosure, in particular as shown in <FIG> and also <FIG>, the cutter clamp <NUM> is arranged for receiving the mounting rod <NUM> of a chain saw in one of the connecting hollow rods <NUM>, <NUM>, such that the mounting rod <NUM> runs through a connecting hollow rod <NUM>, <NUM>, enabling the chain saw to pivot. For reasons of clarity, where applicable, with the exception of <FIG>, only the guide bar <NUM> and the clutch cover <NUM> are shown in the Figures, not the whole chain saw <NUM>, even if the chain saw is to be understood to be present in its entirety.

The hollow rods <NUM>, <NUM> here constitute attachment points, and in this example, as illustrated for two different pipe dimensions in <FIG> and <FIG>, the attachment points <NUM>, <NUM> move since the hollow rods <NUM>, <NUM> slide in the elongated slots <NUM>, <NUM>. The smaller the pipe is, the closer the contact surface <NUM> and the attachment points are brought to the contact rods <NUM>, <NUM>, the positions of the attachment points along the elongated slots <NUM>, <NUM> thus being automatically adapted to the current pipe dimension. When a larger pipe dimension is used, as illustrated in <FIG>, the attachment points <NUM>, <NUM> have been brought to a position in the elongated slots <NUM>, <NUM> where the contact surface <NUM> is brought farther from the contact rods <NUM>, <NUM> than when a smaller pipe dimension is used, as illustrated in <FIG>. By sliding in the elongated slots <NUM>, <NUM> when the cutter clamp <NUM> is tightened against the current pipe, the attachment points <NUM>, <NUM> and the contact surface <NUM> adjusts to the current pipe dimension in an automatic manner.

When the chain saw <NUM> is attached to the cutter clamp <NUM>, the guide bar <NUM> and thus the whole chain saw <NUM> can be pivoted such that it cuts the pipe <NUM> in a desired manner as shown in <FIG> and <FIG>.

By means of the present disclosure, a shorter guide bar can be used, resulting in a saw that is easier to handle and where the risk of kick-back of the guide bar is reduced, having an enhanced cutting angle. A shorter guide bar is enabled since the guide bar <NUM> always is relatively close to the pipe that is to be cut due to the fact that the attachment points <NUM>, <NUM> and the contact surface <NUM> adjusts to the current pipe dimension as described above.

The arcuate arm parts <NUM>, <NUM> are in the above each constituted by two arm plates 10a, 10b; 11a, 11b that are separated along the extension L, as in particular shown in <FIG>, and are held in positions by means of the the contact rods <NUM>, <NUM> and additional arm plate holders <NUM>, <NUM> as illustrated in <FIG> and <FIG>. The arcuate arm parts may of course be made in many other ways, for example in one piece of material.

With reference to <FIG>, <FIG>, <FIG> and <FIG>, a second example of a cutter clamp will be described. <FIG> shows a perspective side view of a cutter clamp <NUM> that is attached to a pipe <NUM>, <FIG> shows a top perspective view of a cutter clamp <NUM>, <FIG> shows a bottom perspective view of a cutter clamp <NUM> and <FIG> shows a side perspective view of a cutter clamp <NUM> with a guide bar mounted. Due to different perspectives and levels of detailing, all Figures mentioned above do not show all details.

The cutter clamp <NUM> comprises a first arcuate arm part <NUM>, a second arcuate arm part <NUM> and a locking screw <NUM>, where the arm parts <NUM>, <NUM> are arcuate such that they are arranged to adjustably embrace and at least partially enclose a major part of a circumference <NUM> having a center <NUM>. The arm parts <NUM>, <NUM> comprise a corresponding first end <NUM>, <NUM> and second end <NUM>, <NUM>, where a first arm second end <NUM> is attached to the second arm <NUM> in a pivoting manner by means of an arm attachment rod <NUM> between a second arm first end <NUM> and a second arm second end <NUM>.

The second arm part <NUM> comprises a first screw holder in the form of a pivoting rod <NUM> that in turn comprises a threaded aperture <NUM> arranged for receiving the locking screw <NUM>, where the pivoting rod <NUM> is positioned between the first arm second end <NUM> and the second arm second end <NUM>. The first arm part <NUM> comprises a hollow pivoting rod <NUM> that in turn is attached to a second screw holder <NUM> adapted for receiving and retaining an end of the locking screw <NUM> in a rotatable manner. When a pipe <NUM> is attached to the cutter clamp <NUM>, it has a longitudinal extension that coincides with an extension L.

The circumference <NUM> and center <NUM> are only imaginary and are only shown in <FIG>; the circumference <NUM> can according to some aspects represent an outer circumference of a pipe.

The cutter clamp <NUM> is arranged to contact a pipe by means of outer contact rods <NUM>, <NUM> attached to the first ends <NUM>, <NUM> of the arm parts <NUM>, <NUM>, or intermediate contact rods <NUM>, <NUM>. The intermediate contact rods <NUM>, <NUM> are attached between the first ends <NUM>, <NUM> of the arm parts <NUM>, <NUM> and the arm attachment rod <NUM>. The cutter clamp <NUM> is according to some aspects arranged to contact a pipe by means of means of contact teeth <NUM> comprised in the second arm part <NUM>. When the locking screw <NUM> is rotated, the end that is retained in the hollow pivoting rod <NUM> rotates and is moved towards or away from the pivoting rod <NUM> since the locking screw <NUM> engages threads in the threaded aperture <NUM>.

In this manner, for a first direction of rotation of the locking screw <NUM>, initially the outer contact rods <NUM>, <NUM> are brought closer to each other, and the intermediate contact rods <NUM>, <NUM> are also brought closer to each other, and finally a first arm outer contact rod <NUM> is brought past a second arm outer contact rod <NUM> and towards a second arm intermediate contact rod <NUM>.

This is illustrated for three different pipe dimensions <NUM>, 38a, 38b in <FIG>, <FIG> and <FIG>. In <FIG>, for the first direction of rotation, the outer contact rods <NUM>, <NUM> and the contact teeth <NUM> are brought into contact with the pipe <NUM>, holding the pipe <NUM>. In <FIG>, for the first direction of rotation, the intermediate contact rods <NUM>, <NUM> and the contact teeth <NUM> are brought into contact with the pipe 38a, holding the pipe 38a. In <FIG>, for the first direction of rotation, the first arm intermediate contact rod <NUM>, a first arm contact surface <NUM> located between the first arm intermediate contact rod <NUM> and the arm attachment rod <NUM>, and the contact teeth <NUM> are brought into contact with the pipe 38b, holding the pipe 38b, while the first arm outer contact rod <NUM> is concealed behind the second arm part <NUM>. For the second direction of rotation, a retained pipe <NUM>, 38a, 38b would be released.

As shown in detail in <FIG>, the second arm part <NUM> comprises a hollow rod <NUM> that runs parallel to the hollow pivoting rod <NUM> of the first arm part <NUM>, both hollow rods extending along the extension L. In the same way as in the first example, the cutter clamp <NUM> is in accordance with the present disclosure arranged for receiving the mounting rod <NUM> of a chain saw in one of the hollow rods <NUM>, <NUM>, such that the mounting rod <NUM> runs through a hollow rod <NUM>, <NUM>, enabling the guide bar <NUM> to pivot. As for the first example, where applicable in the Figures, only the guide bar <NUM> and the clutch cover <NUM> are shown, not the whole chain saw <NUM>, even if the chain saw is to be understood to be present in its entirety.

When the chain saw <NUM> is attached to the cutter clamp <NUM>, it can be pivoted such that it cuts the pipe in a desired manner as shown in <FIG> and <FIG>.

The the hollow rods <NUM>, <NUM> here constitute attachment points, and in this example, as discussed above, the attachment points <NUM>, <NUM> move since the arm parts <NUM>, <NUM> are tightened against each other for the first direction of rotation of the locking screw <NUM>. Each hollow rod <NUM>, <NUM> moves relative the opposite arm part <NUM>, <NUM> when the arms parts <NUM>, <NUM> are adjusted. The smaller the pipe is, the closer to each other the attachment points <NUM>, <NUM> are brought, the attachment points <NUM>, <NUM> thus being automatically adapted to the current pipe dimension by being brought towards the center <NUM> when the cutter clamp <NUM> is tightened against the current pipe.

The arcuate arm parts <NUM>, <NUM> are in the above each constituted by two arm plates 39a, 39b; 40a, 40b that are separated along the extension L, as in particular shown in <FIG> and <FIG>, and are held in positions by means of the the contact rods <NUM>, <NUM>; <NUM>, <NUM> and additional arm plate holders <NUM>, <NUM>, <NUM> as illustrated in <FIG>. The arcuate arm parts may of course be made in many other ways, for example in one piece of material.

In the above, two examples of cutter clamps <NUM>, <NUM> have been presented. For both examples, the attachment points <NUM>, <NUM>; <NUM>, <NUM> are automatically adapted to the current pipe dimension when the cutter clamp <NUM>, <NUM> is tightened against the current pipe as described above. The cutter clamp <NUM>, <NUM> according to the present disclosure comprises a first arm part <NUM>, <NUM> and a second arm part <NUM>, <NUM>, where the arm parts <NUM>, <NUM>; <NUM><NUM> are arcuate and arranged to adjustably at least partially enclose a major part of a circumference <NUM>, <NUM> having a center <NUM>, <NUM>. The adjustment of the arms is performed by means of a locking screw <NUM>, <NUM>.

The cutter clamp <NUM>, <NUM> comprises two hollow rods <NUM>, <NUM>; <NUM>, <NUM>, one arranged at each arm part <NUM>, <NUM>; <NUM>, <NUM>, where the hollow rods <NUM>, <NUM>; <NUM>, <NUM> are arranged for receiving a mounting rod <NUM> of a power cutter in a pivoting manner. The smaller circumference the arm parts are adjusted for, the closer to the center <NUM>, <NUM> the hollow rods <NUM>, <NUM>; <NUM>, <NUM> are moved. The cutter clamp has been shown to comprise two hollow rods <NUM>, <NUM>; <NUM>, <NUM>, but of course there may be only one such hollow rod arranged at one of the arcuate arms, or even more.

According to some aspects, with reference to <FIG> and <FIG>, the mounting rod <NUM> is attached to a rod attachment device <NUM> which in turn comprises a first leg part <NUM> and a second leg part <NUM> which are separated by an intermediate part <NUM>. The clutch cover 7a here comprises a first indentation <NUM> and a second indentation <NUM>, her in the form of millings, where the indentations <NUM>, <NUM> are positioned on opposite sides of the clutch cover 7a and are adapted to receive the corresponding leg parts <NUM>, <NUM> when these are slid into the indentations <NUM>, <NUM> along a mounting direction <NUM>.

Since the leg parts <NUM>, <NUM> have a tight fitting in the indentations <NUM>, <NUM>, the attachment device <NUM> can be rigidly fastened to the clutch cover 7a as shown in <FIG>. The leg parts <NUM>, <NUM> are shown to be of different lengths along the mounting direction <NUM>, where the indentations <NUM>, <NUM> suitably have corresponding lengths. The lengths of the leg parts <NUM>, <NUM> can of course have any suitable relations, according to some aspects the leg parts <NUM>, <NUM> have the same length.

The rod attachment device <NUM> is according to some aspects suitable for attaching other types of mounting rods, or any types of suitable mounting parts, to a power cutter. The rod attachment device <NUM> is therefore generally constituted by an attachment device <NUM>, and suitable mounting parts are according to some aspects adapted to be fastened to a wall-mounted saw holder.

An alternative is shown in <FIG>, where an alternative clutch cover 7b only comprises one indentation <NUM> which according to some aspects is sufficient for rigidly fastening the attachment device <NUM> to the clutch cover 7b.

Each indentations <NUM>, <NUM> is according to some aspects constituted by any form of suitable leg holding arrangement. Screws, spring-loaded balls or similar are according to some aspects arranged in at least one leg holding arrangement for securing the corresponding leg part.

With reference to <FIG>, a cutter clamp according to the present disclosure can also be used for a ring saw <NUM>. Here, a holding frame <NUM> according to a first example is attached to the ring saw <NUM>. The holding frame <NUM> comprises a first leg part <NUM> and a second leg part <NUM> which are separated by an intermediate part <NUM>. The leg parts <NUM>, <NUM> are fastened to the ring saw <NUM> by means of suitable fastening means <NUM> on opposite sides of the ring saw <NUM> with respect to a cutting plane of a ring saw blade <NUM>.

The holding frame <NUM> comprises an attachment flange <NUM> that is attached to the first leg part <NUM> and is arranged for releasably attaching a mounting rod <NUM> to the holding frame <NUM>. The mounting rod <NUM> is in turn adapted to be received by a hollow rod <NUM>, <NUM>; <NUM>, <NUM> of a cutter clamp <NUM>, <NUM> according to the above.

According to some aspects, the mounting rod <NUM> has a treaded end <NUM>, and the attachment flange <NUM> comprises corresponding inner threads <NUM>. Other types of attachments are also conceivable, such as for example welding, press-fit or one or more spring-loaded balls.

The attachment flange <NUM> of the holding frame <NUM> is according to some aspects releasably attachable to other items, such as a previously known wall-mounted saw holding device.

With reference to <FIG>, there is an alternative holding frame 76a according to a second example where a mounting rod 77a is directly attached to the first leg part <NUM> in a fixed manner. The mounting rod 77a is according to some aspects comprised in an extended intermediate part <NUM> that protrudes via the first leg part <NUM>.

According to some aspects, with reference to <FIG>, the second arm part <NUM> of the cutter clamp <NUM> according to the second example comprises a further hollow rod <NUM> positioned between the first screw holder <NUM> and the second arm second end <NUM>. This further hollow rod <NUM> can also be adapted for receiving a mounting rod <NUM> of a power cutter in a pivoting manner. This further hollow rod <NUM> is especially suitable for receiving a mounting rod of a ring saw according to the above. Such a cutter clamp is evidently versatile and possible to use for different types of power cutters.

According to some aspects with reference to <FIG>, which corresponds to <FIG>, an alternative cutter clamp <NUM>' is shown. Here, alternative arm parts <NUM>', <NUM>' are shown, where only the hollow rod <NUM> is comprised in the cutter clamp <NUM>'. No other hollow rod that is adapted for receiving a mounting rod <NUM> of a power cutter in a pivoting manner is comprised in the cutter clamp <NUM>'. This cutter clamp <NUM>' is especially suitable for a ring saw according to the above.

The cutter clamp <NUM>' comprises a locking screw <NUM> that is rotatably attached to a first screw holder <NUM> and is arranged to engage threads comprised in a second screw holder <NUM>' such that turning the locking screw enables the adjustment of the arm parts <NUM>', <NUM>'. The arm parts <NUM>', <NUM>' comprise a corresponding first end <NUM>', <NUM>' and second end <NUM>', <NUM>', where a first arm second end <NUM>' is attached to the second arm <NUM>' in a pivoting manner by means of an arm attachment rod <NUM> between a second arm first end <NUM>' and a second arm second end <NUM>'. The hollow rod <NUM> is positioned between the first screw holder <NUM> and the second arm second end <NUM>'.

The second screw holder <NUM>' is concealed in <FIG>, see the second screw holder <NUM> in <FIG> for an example of the second screw holder <NUM>' in this example. Since there is no hollow pivoting rod to which the second screw holder <NUM>' is attached, other means are conceivable for attaching the second screw holder <NUM>'. In <FIG>, an attachment rod <NUM> is shown to be comprised in the first arm part <NUM>' and adapted for being attached to the second screw holder <NUM>' in a manner similar to the one described with reference to <FIG>, but other alternatives are of course conceivable.

According to some aspects with reference to <FIG>, which corresponds to <FIG>, an alternative cutter clamp <NUM>" is shown. Here, an alternative second arm part <NUM>" is shown without contact teeth.

The alternatives and alternative cutter clamps <NUM>, <NUM>', <NUM>" disclosed can naturally be combined in any suitable manner falling within the scope of the claims.

The present disclosure is not limited to the examples described above, but may vary freely within the scope of the appended claims. For example, the cutter clamp <NUM>, <NUM> is not only suitable for a chain saw or ring saw, but also other types of power cutters that are suitable for cutting pipes are suitable for attachment to a cutter clamp <NUM>, <NUM> according to the present disclosure. The same cutter clamp <NUM>, <NUM> can according to some aspects be used for both a chain saw and a ring saw <NUM> as well as for other types of power cutters.

In this context, expressions such as parallel are not intended to be interpreted as mathematically exact, but within what normally is practically obtainable.

The cutter clamp <NUM>, <NUM> may be made in any suitable material, where the arm parts for example can be made of metal plates, molded metal or molded plastic.

According to some aspects, the intermediate parts <NUM>, <NUM> that connect the arm parts <NUM>, <NUM> in the first example can be formed in many ways, there do not to have to be any outer plates. According to some aspects, one intermediate part <NUM> comprises the first screw holder <NUM> and the hollow rods <NUM>, <NUM>, while the other intermediate part <NUM> comprises the second screw holder <NUM>. For the first example, the hollow rods <NUM>, <NUM> move relative the rest of the cutter clamp <NUM> and the pipe <NUM> that is to be retained by means of the elongated slots <NUM>, <NUM> formed in the arm parts.

The cutter clamps <NUM>, <NUM>, <NUM>', <NUM>" described are not only suitable when cutting through pipes, but many other items can easily be cut with the help of a cutter clamp <NUM>, <NUM>, <NUM>', <NUM>" according to the present disclosure.

The chain saw <NUM> comprises a motor <NUM> which can be constituted by a combustion engine or an electric motor.

Claim 1:
A cutter clamp (<NUM>, <NUM>', <NUM>") that comprises a first arm part (<NUM>, <NUM>') and a second arm part (<NUM>, <NUM>', <NUM>"), where the arm parts (<NUM>, <NUM>; <NUM>', <NUM>', <NUM>") are arcuate and arranged to adjustably at least partially enclose a major part of a circumference (<NUM>) having a center (<NUM>), where the cutter clamp (<NUM>, <NUM>', <NUM>") comprises at least one hollow rod (<NUM>, <NUM>, <NUM>) arranged for receiving a mounting rod (<NUM>, <NUM>, 77a) of a power cutter (<NUM>, <NUM>) in a pivoting manner, the arm parts (<NUM>, <NUM>, <NUM>', <NUM>', <NUM>") comprise a corresponding first end (<NUM>, <NUM>, <NUM>', <NUM>') and second end (<NUM>, <NUM>, <NUM>', <NUM>'), where a first arm second end (<NUM>, <NUM>') is attached to the second arm (<NUM>, <NUM>', <NUM>") in a pivoting manner by means of an arm attachment rod (<NUM>) between a second arm first end (<NUM>, <NUM>') and a second arm second end (<NUM>, <NUM>'), where the second arm part (<NUM>, <NUM>', <NUM>") comprises a first screw holder in the form of a pivoting rod (<NUM>) positioned between the first arm second end (<NUM>, <NUM>') and the second arm second end (<NUM>, <NUM>'), wherein
- the smaller circumference the arm parts (<NUM>, <NUM>, <NUM>") are adjusted for, the closer to the center (<NUM>) said hollow rod (<NUM>, <NUM>) is moved, and the second arm part (<NUM>, <NUM>', <NUM>") comprises a further hollow rod (<NUM>) positioned between the first screw holder (<NUM>) and the second arm second end (<NUM>, <NUM>'), or
- the second arm part (<NUM>, <NUM>', <NUM>") comprises only a hollow rod (<NUM>) positioned between the first screw holder (<NUM>) and the second arm second end (<NUM>, <NUM>').