Ratchet mechanism for telescope devices on toy vehicles

A ratchet mechanism for telescope devices on toy vehicles, comprising:

• a manually drivable driving gearwheel rotatably positioned on a telescope base body;
• a rack-type row of teeth engaging with the driving gearwheel and disposed on a telescope arm which is lodged for longitudinal displacement in the telescope base body;
• and
• a pawl being in ratcheting engagement with a tooth gap between two teeth of the driving gearwheel for the telescopic arm to be fixed in different positions of displacement on the telescope base body, said pawl having a plate bent in a direction of engagement (E) about a neutral axis extending parallel to an axis of rotation (D) of the driving gearwheel, which plate is provided with a bearing end and a bearing sleeve on the bearing end, the bearing sleeve resting non-rotatably on an elastically twistable bearing axle on the telescope base body;
• said pawl consists of elastically flexible plastics so that on the one hand, upon actuation of the driving gearwheel for an extraction of the telescopic arm, said pawl ratchets over the teeth of the driving gearwheel while being deflected counter to the direction of engagement (E), and on the other hand, upon actuation of the telescopic arm in a direction of retraction by a force exceeding a limit, said pawl is elastically deformable in a defined manner such that the pawl again ratchets over the teeth of the driving gearwheel while releasing the telescopic arm in the latter's direction of retraction.

A ratchet mechanism for telescope devices on toy vehicles, comprising:

• a manually drivable driving gearwheel rotatably positioned on a telescope base body;
• a rack-type row of teeth engaging with the driving gearwheel and disposed on a telescope arm which is lodged for longitudinal displacement in the telescope base body;
• and
• a pawl being in ratcheting engagement with a tooth gap between two teeth of the driving gearwheel for the telescopic arm to be fixed in different positions of displacement on the telescope base body;
• said pawl consists of elastically flexible plastics so that on the one hand, upon actuation of the driving gearwheel for an extractions of the telescopic arm, said pawl ratchets over the teeth of the driving gearwheel while being deflected counter to a direction of engagement (E), and on the other hand, upon actuation of the telescopic arm in a direction of retraction by a force exceeding a limit, said pawl is elastically deformable in a defined manner such that the pawl again ratchets over the teeth of the driving gearwheel while releasing the telescopic arm in the latter's direction of retraction;
• a stop is provided on the telescope base body upstream of a side of the pawl oriented in the direction of engagement (E), the stop defining a depth of engagement of the pawl with the tooth gap of the driving gearwheel such that, upon application of a force exceeding a limit in the direction of retraction of the telescopic arm, the pawl is disengageable by intrinsic elastic deformation for a release of the driving gearwheel counter to the direction of engagement (E).

A ratchet mechanism for telescope devices on toy vehicles, comprising:

• a manually drivable driving gearwheel rotatably positioned on a telescope base body;
• a rack-type row of teeth engaging with the driving gearwheel and disposed on a telescope arm which is lodged for longitudinal displacement in the telescope base body;
• and
• a pawl being in ratcheting engagement with a tooth gap between two teeth of the driving gearwheel for the telescopic arm to be fixed in different positions of displacement on the telescope base body;
• said pawl consists of elastically flexible plastics so that on the one hand, upon actuation of the driving gearwheel for an extraction of the telescopic arm, said pawl ratchets over the teeth of the driving gearwheel while being deflected counter to a direction of engagement (E), and on the other hand, upon actuation of the telescopic arm in a direction of retraction by a force exceeding a limit, said pawl is elastically deformable in a defined manner such that the pawl again ratchets over the teeth of the driving gearwheel while releasing the telescopic arm in the latter's direction of retraction;
• a stop is provided on the telescope base body upstream of a lateral edge of a side of the pawl oriented in the direction of engagement (E), which stop constitutes an abutment for the pawl upon the latter's deformation in the direction of engagement (E), the pawl being deformable upon application of a force exceeding a limit in a direction of retraction of the telescopic arm in such a way that the pawl is displaceable past the stop in the direction of engagement (E) beyond its position of engagement with the driving gearwheel.

A ratchet mechanism for telescope devices on toy vehicles, comprising:

• a manually drivable driving gearwheel rotatably positioned on a telescope base body;
• a rack-type row of teeth engaging with the driving gearwheel and disposed on a telescope arm which is lodged for longitudinal displacement in the telescope base body;
• and
• a pawl being in ratcheting engagement with a tooth gap between two teeth of the driving gearwheel for the telescopic arm to be fixed in different positions of displacement on the telescope base body;
• said pawl consists of elastically flexible plastics so that on the one hand, upon actuation of the driving gearwheel for an extraction of the telescopic arm, said pawl ratchets over the teeth of the driving gearwheel while being deflected counter to a direction of engagement (E), and on the other hand, upon actuation of the telescopic arm in a direction of retraction by a force exceeding a limit, said pawl is elastically deformable in a defined manner such that the pawl again ratchets over the teeth of the driving gearwheel while releasing the telescopic arm in the latter's direction of retraction;
• an unblocking gearwheel coupled with the driving gearwheel and of identical pitch is disposed coaxially with the driving gearwheel, flatly ascending flanks of said unblocking gearwheel actuating the pawl counter to the direction of engagement (E) for unblocking the ratchet mechanism upon the actuation of the mechanism for the retraction of the telescopic arm.

A toy truck comprising:

• a manually drivable driving gearwheel rotatably positioned on a telescope base body;
• a rack-type row of teeth engaging with the driving gearwheel and disposed on a telescope arm which is lodged for longitudinal displacement in the telescope base body;
• a pawl being in ratcheting engagement with a tooth gap between two teeth of the driving gearwheel for the telescopic arm to be fixed in different positions of displacement on the telescope base body;
• said pawl consists of elastically flexible plastics so that on the one hand, upon actuation of the driving gearwheel for an extraction of the telescopic arm, said pawl ratchets over the teeth of the driving gearwheel while being deflected counter to a direction of engagement (E), and on the other hand, upon actuation of the telescopic arm in a direction of retraction by a force exceeding a limit, said pawl is elastically deformable in a defined manner such that the pawl again ratchets over the teeth of the driving gearwheel while releasing the telescopic arm in the latter's direction of retraction.

A toy telescope support comprising:

• a manually drivable driving gearwheel rotatably positioned on a telescope base body;
• a rack-type row of teeth engaging with the driving gearwheel and disposed on a telescope arm which is lodged for longitudinal displacement in the telescope base body;
• a pawl being in ratcheting engagement with a tooth gap between two teeth of the driving gearwheel for the telescopic arm to be fixed in different positions of displacement on the telescope base body;
• said pawl consists of elastically flexible plastics so that on the one hand, upon actuation of the driving gearwheel for an extraction of the telescopic arm, said pawl ratchets over the teeth of the driving gearwheel while being deflected counter to a direction of engagement (E), and on the other hand, upon actuation of the telescopic arm in a direction of retraction by a force exceeding a limit, said pawl is elastically deformable in a defined manner such that the pawl again ratchets over the teeth of the driving gearwheel while releasing the telescopic arm in the latter's direction of retraction.