CN222096399U - Rotary handle and hand-held power tool with a rotary handle - Google Patents

Abstract

The utility model relates to a rotary handle, which is used to fix a guide rail on a housing of a chain saw in a desired chain tensioning position, and comprises: a rotating body capable of rotating around a rotation axis; a handle received on the rotating body and particularly pivotally movable relative to the rotating body; a locking device receiving portion received on the rotating body in particular elastically movable manner, preferably an elastically movable sheet, which is arranged to be moved relative to the rotating body by the handle when the handle moves relative to the rotating body; the locking device receiving portion has a first locking device, which is arranged to enable the rotary handle to be rotationally stopped around its rotation axis. The locking device receiving portion has a second locking device, which is arranged to limit the movement of the movable handle relative to the rotating body, particularly by interacting with a matching locking device on the handle. The utility model also relates to a handheld machine tool having the above-mentioned rotary handle.

Description

Rotary handle and hand-held power tool with a rotary handle

Technical Field

The present utility model relates to a rotary clamping handle for a chain saw and a chain saw having a rotary clamping handle.

Background

Rotary clamping handles for securing a guide rail to a chain saw housing have been disclosed.

Disclosure of utility model

The present utility model relates to a rotary handle having the features of the preferred embodiments and to a hand-held power tool, in particular a chain saw, comprising a rotary handle having the features of the preferred embodiments. An advantageous development results from the alternative embodiments.

One of the tasks of the utility model is to achieve an intuitive operation of the rotary handle. An improved twist grip may be provided, particularly for tensioning a guide rail of a chain saw. The integration of the components of the rotary handle is high. One task is to improve the user-friendliness and/or to increase the safety of the operating chain saw, in particular by increasing the difficulty of inadvertently releasing the rotary handle, in particular when the rotary handle is in the non-use position or in the use position, so that the user can directly and/or intuitively recognize it.

The utility model relates to a rotary handle for fixing a guide rail to a housing of a chain saw, in particular in a desired chain tensioning position, comprising:

a rotating body rotatable about a rotation axis;

A handle received on the rotating body, in particular pivotally movable relative thereto;

A locking device receptacle, preferably a tab, which is in particular received on the rotary body in a resiliently movable manner and which is arranged to be moved by the handle when the handle is moved relative to the rotary body;

Wherein the locking device receptacle has a first locking device which is preferably arranged such that the rotary handle can be rotationally arrested about its rotational axis. In particular, the rotary handle is preferably rotationally locked or rotationally locked about its rotational axis by engagement with a mating locking device formed on the chain saw housing when the locking device receptacle is moved.

It is proposed that the locking means receptacle has a second locking means arranged to limit the movement of the movable handle relative to the rotator by its interaction with a cooperating locking means on the handle lever.

By arranging two locking means on one locking mechanism receiving portion, a dual function can be achieved. On the one hand, the rotation of the rotary handle can be released or prevented, and on the other hand, the handle for rotating the rotary handle, in particular the pivoting handle, can be locked in a position, in particular in a preferred position, in particular in the use position and in the non-use position. Here, "locking" means in particular that a temporary increase in the operating force is required in order to move the handle from the first position to the second position, in particular from the first pivot position, for example the use position or the non-use position, to the further pivot position, in particular the intermediate position or the respective further use position or non-use position. In principle, this also applies to different rotational positions of the handle relative to the rotation body or the like.

It is proposed that the first locking means and the second locking means are arranged on opposite sides of the locking means receptacle and/or the rotation body, in particular on the clamping tensioning side, and that the second locking means are arranged on opposite sides, in particular the first locking means are arranged on the clamping tensioning side and the second locking means are arranged on the pivoting handle receiving side. Thus, high component integration can be achieved. The dual function can be achieved by movement of the handle. On the one hand, the handle can be locked in at least one, in particular two, pivot positions, and on the other hand, the rotary handle can be fixed against accidental release.

It is proposed that the first locking means are configured as projections, in particular locking means projections, in particular as part-circular projections. The projections are formed in particular convexly. In particular, the projection is formed rounded in the transition to the locking device receptacle. Thereby, the stability of the locking device can be increased. When the rotary handle or the rotary body is turned, undesired jamming, in particular jamming due to wear, can be avoided. Self-orientation on the mating locking means advantageously corresponding to the formation of the locking means can be achieved. The interengagement of the locking means and the cooperating locking means can be achieved in all rotational positions.

It is proposed that the second locking means be embodied as a projection, in particular as a detent projection, in particular as a part-circular projection. The projections are formed in particular convexly. In particular, the projection is formed rounded in the transition to the locking device receptacle. Thereby, the stability of the locking device can be improved. When the handle is pivoted, undesired jamming, in particular jamming due to wear, can be avoided. When engaged with the second cooperating locking means on the handle, the snap-in action is gentle, especially not abrupt. The release of the locking device can take place intuitively, in particular not abruptly, in particular by overcoming a pretensioning force of the locking device receptacle in the direction of the handle.

It is proposed that the basic shape of the first and second locking means is identical, for example, respectively part-circular projections, in particular the ratio of said basic shapes is different, for example, part-circular projections having different radii. Thus, the locking action when the first or second locking means is locked is similar. A strong structure, in particular protection against wear or breakage, can be achieved.

It is proposed that the handle, in particular the rotary handle, has a recess, preferably a circular recess, as a second mating locking means. In particular, the design of the second cooperating locking means corresponds to the locking means. When the handle is moved, the locking position of the handle can be intuitively perceived.

It is proposed that the handle, in particular the pivoting handle, has a recess, preferably a part-circular recess, as the second mating locking means. In particular, the second mating locking device is designed corresponding to the locking device. The latching position of the handle can be intuitively perceived when the handle is moved.

It is proposed that the handle, in particular the pivoting handle, has two second cooperating locking means, which are spaced apart from one another, in particular with the same basic shape, in particular with different proportions, for example different part-circle radii, in particular at an angle of approximately 90 ° about the axis of rotation of the handle. The handle can thus be intuitively transferred into two typical positions-a use position and a non-use position.

It is proposed that the proportion of the first and second cooperating locking means for locking the pivoting handle in the non-use position is smaller than the proportion of the second cooperating locking means for locking the pivoting handle in the use position. Thus, the rotary handle can only be turned in the use position.

Furthermore, a hand-held power tool or chain saw is proposed, which comprises the rotary clamping handle.

Drawings

Other advantages of the utility model will be apparent from the following description of the drawings. Embodiments of the utility model are illustrated in the accompanying drawings. The drawings, description and claims contain many combined features. Those skilled in the art can also conveniently consider these features alone and summarize them into other useful combinations.

In the accompanying drawings:

Fig. 1 shows a handheld power tool according to the utility model, in particular a chain saw, in a perspective view, comprising a rotary handle according to the utility model,

Figure 2 shows a partial exploded view of the chain saw of the utility model and the rotary handle of the utility model,

Figure 3a shows an enlarged part of an exploded view showing the rotating handle,

Figure 3b shows a side view of the rotating handle,

Figure 3c shows a side view of the rotator,

Figure 3d shows a side view of the pivoting handle,

Figure 4 shows a cross-section of the hand-held power tool or chain saw through the rotational axis of the rotary handle,

FIG. 5 shows a partial cross-sectional view, offset in parallel relative to the cross-sectional view of FIG. 4, through the rotary handle in the non-operating or non-use position, and in particular also shows the locking device receptacle in section and the locking and mating locking device in section, and

Fig. 6 shows a partial cross-sectional view similar to fig. 5 but through the rotary handle in a manoeuvred or in use position.

Detailed Description

Fig. 1 shows a perspective view of a hand-held power tool 10 according to the utility model, which has a rotary handle 26 according to the utility model. The hand-held power tool 10 is designed as a chain saw 12. It is a single hand chain saw. It is driven electrically, here by means of an electric motor 100, but may also be driven by means of an internal combustion engine, hydraulically, mechanically or the like. It may also be a handle bar attachment with a rotary drive, such as a high branch trimmer. The replaceable battery pack 18 provides power. In this example, it is an 18V battery. In particular lithium ion batteries. 12V or 36V replaceable battery packs, battery packs having other voltages, batteries or the like, as well as fixedly mounted batteries may also be used. The grid power may also be used. The motor is an EC motor, but other motors may be used. Efficient, compact and/or lightweight are the primary reasons for using EC motors. The motor drives the tool through a transmission 102. Here, the electric motor drives a sprocket, not shown, through the motor transmission unit 100, 102. Which in turn engages and drives the saw chain 30 in rotation. The motor is driven by electronics, not shown. The user may activate the chain saw 12.

The chain saw 12 has a housing 14. The chain saw 12 has a handle 16. The handle is oriented substantially in the direction of the handle axis 104. The handle axis 104 forms an angle 108 with the longitudinal axis 106 of the chain saw 12. The angle is in particular between 120 and 150 °, preferably around 135 °. The longitudinal axis 106 corresponds to the central longitudinal axis of the rail 28. The housing 14 has in particular two housing half-shells 32, 34 and forms the handle 16. The chain saw 12 is configured to be operable with one hand, but may be operated and guided with both hands. To activate the chain saw 12, the user moves the release switch 110, for example, with the thumb, in particular an automatically reset, in particular spring-biased toggle switch. The user then activates the motor 100, especially with the index finger, by operating or throttling the switch 112. The handle 16 also has a handle recess 114. In particular, skin folds between the thumb and index finger of the user are located in the handle grooves. This may improve the guiding of the chain saw 12. A handle knob 116 engages the handle recess 114, so to speak, at the distal end of the handle 16, particularly as a secondary handle 118. The handle knob 116 is formed convexly. Which partly protrudes from the handle 16 in the direction of the longitudinal axis/overlaps the handle 16. Which extends convexly parallel to the longitudinal axis 106. Thus, a user may also operate and/or guide a one-handed chain saw with both hands, for example, holding the handle 16 with one hand and holding the secondary handle 118 with the other hand, particularly laterally. The thumb of the hand holding the sub-handle 118 may be placed in or around the handle recess 114. In this way, a safe guidance of the chain saw 12 can be achieved. The sub-handle 118 is arranged above the motor. The handle axis 104 intersects the secondary handle 118, in particular transversely, in particular at an angle of 120-150 °, preferably at an angle of about 135 °. The secondary handle 118 may extend parallel to the longitudinal axis 106, particularly above the central longitudinal axis of the rail 28, particularly above the sprocket.

The guide rail 28 protrudes from the housing 14 in the direction of the longitudinal axis 106. The saw chain 30 rotates on the guide rail 28. The saw chain 30 is guided by a guide rail. The saw chain 30 rotates on the guide rail 28 in the direction of arrow 120. The rail 28 is longitudinally movably received on the housing 14. It can be moved by an adjusting device, in particular by means of at least one adjusting wheel 128, preferably a transmission unit, and a sliding bolt 132. The chain tension is variably adjustable by means of a longitudinal displacement of the guide rail 28, in particular by means of the adjustment wheel 128. The rail 28 may be fixedly received on the housing 14. Rotating the handle 26 may fix the rail 28 relative to the housing 14 or to the housing 14. It applies at least indirectly a tensioning and/or clamping force, in particular on the cover housing 24, the broad sides of the guide rail 28, or the housing 14. The length of the guide rail 28 may be shorter than 26 cm, preferably shorter than 20 cm, here for example 15 cm. The weight of the hand-held power tool may be less than 5 kg, in particular less than 2.5 kg, in this case, for example, about 1.7 kg.

A guard chain 122, and in particular a guard chain cover, is received on the housing 14, preferably pivotable about a pivot axis 124. In the basic position shown, it is preloaded by a spring (not shown) (spring preload). The guard chain 122 covers the saw chain 30 in sections, in particular the upper cutting section of the saw chain 30. This takes place on the one hand radially outwards in the circumferential direction and on the other hand on both sides of the guide rail 28 or on both sides of the plane of revolution of the saw chain 30. The guard chain covers the upper cutting section of the saw chain 30, and in particular substantially to the apex 126 where the longitudinal axis 106 of the guide rail intersects the saw chain 30. The guard chain covers the saw chain turning area at an angle of about 90 °.

The hand-held power tool 10 has a hand guard 20. The hand guard 20 may be designed asymmetrically, in particular transversely or substantially perpendicularly to the guide rail plane or to the plane of revolution of the saw chain 30. In particular, the width of the hand guard 20 exceeds the width of the handle 16. The hand guard 20 surrounds the side of the handle 16 facing the rail 28 in spaced apart relation. It forms a through opening protected by it, in particular for the passage of the fingers of the user. A hand guard 20 is formed between the handle 16 and the region of the rotary saw chain 30, so to speak configured as a hand guard stirrup. The hand holding the handle 16 can thus be protected from, for example, saw dust or wood, especially during operation of the chain saw 12.

Fig. 2 shows a partial exploded view of a hand-held power tool according to the utility model or a chain saw 12 according to the utility model and a rotary handle 26 according to the utility model. Here, a half shell 34 of the housing 14 is shown. In addition, a guide rail 28 is also shown. A cover housing 24 is also shown. And a rotary handle 26 comprising a rotary body 38, a pivot pin or peg 40 and a handle 42 or pivot handle, and fastening means here in the form of a nut 36. The fastening means is arranged to be screwed onto a bolt or tensioning bolt 48. The rotary handle 26 may also be referred to as a rotary tensioning handle or a rotary clamping handle. It may be held in particular on the handle 42. In principle, instead of a pivoting handle, a rotating handle which is rotatable relative to the rotating body about the rotation axis 49 may also be used. The rotary handle 26 is arranged to rotate about a rotation axis 49. It is designed to tighten or clamp an object, in this case at least indirectly the guide rail 28, and is therefore also referred to in particular as a rotary tightening handle or rotary clamping handle.

The rotary handle 26 is configured to secure the guide rail 28 to the housing 14 of the chain saw 12, particularly at a desired chain tensioning position. The rotary handle 26 comprises a rotary body 38 rotatable about a rotation axis 49. Furthermore, a handle 42, in particular a pivot handle, is received on the rotary body 38, which is in particular pivotally displaceable relative to the rotary body 38. The handle 42 is pivotally secured to the rotator 38 by a peg 40. The handle is pivotable in particular by 90 °, but may also be configured to be pivotable by 180 °, for example, in particular by providing two first and second cooperating locking means 66 (discussed later) which are 180 ° apart about the pivot axis 62. The rotator 38 and the handle 42 have corresponding peg holes. They extend perpendicular to the rotation axis 49. The handle 42 is pivotally connected to the rotator 38 by a peg 40 on either side of the peg hole of the rotator 38. A clearance fit or a transition fit may be provided between the rotator 38 and the peg 40, and in particular a press fit or an interference fit may be provided between the handle 42 and the peg 40.

Fig. 3a shows an enlarged part of the partial exploded view of fig. 2, namely the rotary handle 26 and its individual components. Below this fig. 3a, fig. 3b shows a side view of the swivel handle 26, fig. 3c shows the swivel body 38 alone, and fig. 3d shows the handle 42 alone. A locking device receiving portion 54, preferably a tab 56, is formed on the rotator 38. It is removably received. It is received in particular in a resiliently movable manner. It is formed in particular integrally with the rotary body 38. It is arranged in particular on one side on the rotating body 38. The locking device receptacle 54 has a longitudinal axis or extends tangentially relative to or along a circular path about the rotation axis 49, in particular between the rotation axis 49 and the outer circumferential surface of the rotary body 38. The main extension direction is substantially parallel to the clamping surface 70. The locking device receptacle 54 may be designed as a one-sided clamped beam. The locking device receiving portion 54 may be exposed three sides and fixed one side with respect to the rotating body. The rotator 38 and the handle 42 comprise in particular plastic, preferably formed of plastic or fiber reinforced plastic.

The locking device receiving portion 54 has a first locking device 58. The locking device receiving portion 54 has a second locking device 60. They may be arranged in the region of the free end of the locking device receptacle 54. The locking means 58, 60 may be arranged at least partially opposite each other. They are arranged or formed on opposite sides of the locking device receptacle 54, in particular integrally with the locking device receptacle 54 or the rotary body 38. As can be seen from fig. 3c, the locking devices 58, 60 are arranged with a particularly small offset on the locking device receptacle 54, in particular in the direction of the longitudinal axis of the locking device receptacle 54. It can also be seen from fig. 3c that the gradient and/or radius of the locking means 58, 60 are at least slightly different. The gradient of the first locking means 58 is gentler than the gradient of the second locking means 60. The side slope of the respective locking means, in this case in particular the rising slope and the falling slope of the hump-shaped locking means, may also be different. The force required for the rotation into or out of the locked or snapped-in position can thereby be influenced.

As shown in fig. 5, the first locking means 58 is arranged to engage with the mating locking means 46 during displacement, in particular with the mating locking means 46 of the cover housing 24. The cover housing 24 has a plurality of cooperating locking means 46 which are arranged at an angular distance from one another about a rotational axis 49, in particular symmetrically to one another. Thus, the rotary handle 26 may be secured to the cover housing 24 in a plurality of rotational positions. The mating locking device 46 has a shape, in particular a clamping groove, corresponding to the first locking device 58. When they are engaged with one another, a rotational stop of the rotary handle 26 about its rotational axis 49 can be achieved, in this case by a positive fit, in particular a positive fit of the rotary body 38 relative to the housing 14 or the cover housing 24 or the hand-held power tool 10.

The first locking means 58 and the second locking means 60 are arranged on opposite sides 84, 86 of the rotator 38. The first locking means 58 is arranged on the clamping or tensioning side and the second locking means 60 is arranged on the pivoting handle receiving side. The first locking means 58 may be configured as a projection, in particular a detent projection, in particular a part-circular projection. The second locking means 60 may be configured as a projection, in particular a detent projection, in particular a part-circular projection. The basic shape of the first and second locking means 58, 60 may be identical, here respectively a part-rounded or parabolic snap-lock hump. The ratio or configuration of the basic shape may be different, for example, different radii of the part-circular protrusion, different slopes of the protrusion, etc. may be selected.

The handle 42, in particular the pivoting handle, may have a second mating locking means 64, in particular in the form of a recess, preferably a part-circular recess. It may be provided on the sliding surface 52. Thus, the handle 42 has a sliding surface 52 extending about the pivot axis 62, in particular a sliding surface 52 extending partially circularly or helically about the rotation axis 49. As can be seen from fig. 3d, the sliding surface can be formed helically in the circumferential direction, i.e. as a helical sliding surface 74. The radial distance r, r' of the surface or sliding surface 52 extending around the pivot axis 62 from the pivot axis 62 varies in the circumferential direction around the pivot axis 62, here in particular over an angle 130 of 70-90 °.

The locking means 60 is arranged to engage or snap into, or at least remain in, the second cooperating locking means 64, especially when the handle 42 is rotated to the non-use position 82 and the use position 80. The locking means 60 may be engaged with the second cooperating locking means 64 by a pre-tightening force. To remove or rotate the handle 42 from the locked position, a greater force is required. This is because the locking device receiving portion 54 pretensions the second locking device 60 in the direction of the sliding surface 52 or the second mating locking device 64. For example, the second locking device 60 may be preloaded when the handle 42 is fitted on the rotator 38, in particular by the elastic displacement of the locking device receiving portion 54 via the locking device 60.

The handle 42, in particular the pivoting handle, has two second cooperating locking means 66, 68. They are arranged at an angular distance of about 90 ° from each other. Thus, two main positions of the handle 42, namely a non-use position and a use position, can be determined. The second mating locking devices 66, 68 have the same basic shape. They may be part-circular recesses. Each of which extends parallel to the pivot axis 62 of the handle 42, so to speak, is configured as a longitudinal cut. Their surfaces are formed smooth and have a chamfer transition with the sliding surface 52 adjacent in the circumferential direction. They have different proportions, here with different part-circle radii or different depths of penetration into the sliding surface 52. The proportion of the first second cooperating locking means 66 (see fig. 3 d) for locking the handle 42 in the non-use position 82 (see fig. 5) is smaller than the proportion of the second cooperating locking means 68 for locking the handle 42 in the use position 80 (see fig. 6). As can be seen in fig. 3d, the radius and/or depth of penetration of the first second mating locking device 66 is smaller compared to the second mating locking device 68, especially with respect to the surrounding surface. In other words, the first and second cooperating locking means are a greater distance from the pivot axis 62 than the second cooperating locking means 66, 68. The second cooperating locking means(s) 66, 68 are arranged on only one side of the handle stirrup with respect to the axis of rotation 49. They can also be arranged on both sides of the handle stirrup 90 or the handle area 50, in particular redundantly. The first and second locking means 58, 60 are also arranged only once in the circumferential direction on the rotation body 38, and there is also only one locking means receiving portion 54. However, two locking means receptacles 54 or two first and two second locking means 58, 60 may also be provided, for example offset by 180 ° in the circumferential direction on the rotary body 38.

Fig. 4 shows a cross-section of the hand-held power tool 10 or the chain saw 12 through the rotational axis 49 of the rotary handle 26. The rotary handle 26 is in the non-use position 82. The guide rail 28 is fixed to the housing 14. The nut 36 received in the rotating body 38 is screwed onto the bolt 40. The clamping force is transmitted from the rotary handle 26 to the cover housing 24 via its clamping surface 70. It fixedly clamps/tightens the guide rail 28 to the housing 14 or to the housing half-shell 34. The desired chain tension may be adjusted prior to securing the rail 28 to the housing 14 by an adjustment wheel 128 and a transmission mechanism (not shown) that moves a sliding pin 132 engaged with the rail 28 in the direction of the longitudinal axis 106 of the rail 28. Corresponding anti-loss devices 44, 72 (fig. 2, 3) are provided on the cover housing 24 and the twist grip 26, respectively, to prevent loss of the twist grip 26. On the cover housing 24, they are embodied as four elastically received latching projections, each of which is distributed at 90 °, and on the rotary handle 26, a circumferential latching collar is provided as a loss prevention means 72. In the cross-sectional view of fig. 4, the corresponding anti-lost devices 44, 72 on the swivel handle 26 and the cover housing 24 can also be seen. Thus, the rotary handle 26 is not accidentally separated from the cover housing 24 even when released from the peg 40.

With particular reference to fig. 5 and 6, the transfer of the handle 42 from the non-use position of fig. 5 to the use position of fig. 6 and back again to the non-use position of fig. 5 is described below. To adjust the chain tension, the user pivots the handle 42 from the non-use position 82 to the use position 80. To do so, the user pivots the handle in a pivot direction 78 (see FIG. 5). In the process, the user must overcome the force threshold. The first and second cooperating locking means 66 are pivoted out of the locking position together with the second locking means by the resilient pivoting of the locking means receiving portion 54 transversely to the clamping surface 70.

At the same time, the rotary handle 26 or the rotary body 38 cannot rotate relative to the housing 14 or the cover housing 24. The first locking means 58 is in locking engagement with the first cooperating locking means 46. As the handle 42 is pivoted further in the pivot direction 78, the sliding surface 52 slides onto the second locking means 60. By means of the helically decreasing radial distances r, r' in the circumferential direction, the first locking means 58 can be disengaged more and more from the first mating locking means 46. After the handle 42 is pivoted through a pivot angle of about 80-90, the second locking means 60 engages the second cooperating locking means 68. In this state, the locking device receiving portion 54 may still be preloaded or may sometimes reach a relaxed state. The minimum distance of the second cooperating locking means from the pivot axis 62 is smaller than the first second cooperating locking means. The first locking means 58 is now completely disengaged from the first cooperating locking means 46.

The rotating handle 26 can now be rotated. The tensioning or clamping of the rail 28 is cancelled or at least reduced. The guide rail 28 can now be moved to a desired position, in particular in order to adjust the tensioning of the saw chain 30. The rotary handle 26 can then be screwed down again—in this case, rotated clockwise about the rotation axis 49. Clamping tension is applied to the mating clamping surface 71 of the cover housing 24 or to the cover housing 24, rail 28 or housing 14 by means of the clamping surface 70. The rail 28 is now fixed to the housing 14. Now, after overcoming the threshold force, the handle 42 may be rotated from the use position 80 back to the non-use position 82 by pivoting the handle 42 back 90 ° about the pivot axis 62. The second locking means 60 now snaps or engages with the first second mating locking means 66. The first locking means 58 is snapped into engagement with the first cooperating locking means 46 on the cover housing 24, thereby preventing rotation of the rotary handle 26. Because of the snap-fit or engagement of the second locking means with the first and second cooperating locking means 66, the handle 42 can no longer be pivoted out of the non-use position 82 without overcoming the threshold force. Thereby, safety and intuitiveness of operation can be improved. The number of parts is also reduced.

Claims (27)

1. A rotary handle (26) for securing a guide rail (28) to a housing (14) of a chain saw (12) in a desired chain tensioning position, comprising:

-a rotating body (38) rotatable about a rotation axis (49);

-a handle (42) received on the rotating body (38) movable relative to the rotating body (38);

-a locking device receiver (54) movably received on the rotator (38) and arranged to be moved relative to the rotator (38) by the handle (42) when the handle (42) is moved relative to the rotator (38);

-wherein the locking device receptacle (54) has a first locking device (58) which is arranged such that the rotary handle (26) can be rotationally arrested about its rotational axis (49), characterized in that,

-The locking device receiver (54) has a second locking device (60) arranged to limit the movement of the movable handle (42) relative to the rotator (38).

2. The rotary handle (26) according to claim 1, wherein the first locking means (58) and the second locking means (60) are arranged on opposite sides (84, 86) of the locking means receiving portion (54) and/or the rotary body (38).

3. The rotary handle (26) according to claim 1 or 2, wherein the first locking means (58) is configured as a protrusion.

4. The rotary handle (26) according to claim 1 or 2, wherein the second locking means (60) is configured as a protrusion.

5. The rotary handle (26) according to claim 1 or 2, wherein the basic shape of the first locking means (58) and the second locking means (60) are identical.

6. The rotary handle (26) according to claim 1 or 2, wherein the handle (42) has a recess as the second mating locking means (64).

7. The rotary handle (26) according to claim 1 or 2, wherein the handle (42) has two second cooperating locking means.

8. The rotary handle (26) according to claim 7, wherein the proportion of the first and second cooperating locking means for locking the pivotal handle in the non-use position (78) is smaller than the proportion of the second and second cooperating locking means for locking the handle (42) in the use position (80).

9. The rotary handle (26) according to claim 1, wherein the handle is pivotally movable relative to the rotator.

10. The rotary handle (26) according to claim 1, wherein the locking device receiving portion is elastically movable.

11. The twist grip (26) according to claim 1, wherein the locking device receiving portion is a resiliently movable tab (56).

12. The rotary handle (26) according to claim 1, wherein the limiting of the movement of the handle (42) relative to the rotator (38) is achieved by the interaction of the second locking means with a cooperating locking means (64) on the handle (42).

13. The rotary handle (26) according to claim 2, wherein the first locking means (58) is arranged at the clamping side and the second locking means (60) is arranged at the pivoting handle receiving side.

14. A rotary handle (26) according to claim 3, wherein the first locking means is configured as a latch protrusion.

15. A twist grip (26) according to claim 3, characterised in that the first locking means is configured as a part-circular protrusion.

16. The rotary handle (26) according to claim 4, wherein the second locking means (60) is configured as a latch protrusion.

17. The rotary handle (26) according to claim 4, wherein the second locking means is configured as a part-circular protrusion.

18. The rotary handle (26) according to claim 5, wherein the basic shape of the first and second locking means is a part-circular protrusion, respectively.

19. The rotary handle (26) according to claim 5, wherein the ratio of the basic shapes of the first and second locking means is different.

20. The twist grip (26) according to claim 5, wherein the basic shape of said first and second locking means is part rounded with different radii.

21. The rotary handle (26) according to claim 6, wherein the rotary handle has a partial circular recess as the second mating locking means.

22. The rotary handle (26) according to claim 7, wherein said second cooperating locking means are spaced apart from each other at an angle (130) of about 90 °.

23. The rotary handle (26) according to claim 7, wherein the second cooperating locking means have the same basic shape.

24. The twist grip (26) according to claim 7, wherein said second cooperating locking means have different proportions.

25. The twist grip (26) according to claim 7, wherein said second mating locking means have different part circle radii.

26. Hand-held power tool (10), characterized in that it comprises a rotary handle (26) according to one of the preceding claims 1 to 25.

27. The hand-held power tool (10) according to claim 26, characterized in that the hand-held power tool is a chain saw (12).