Fixing device for a shank chisel
AssigneeWirtgen GmbH
InventorsGünter Tewes, Jochen Blens, Bernd Holl
Life of this patent
Estimating the term…
Abstract
A fixing device for a shank chisel including a base part to which a chisel holder is attached in a manner that enables it to be exchanged. The chisel holder has a chisel location for the shank chisel and has a supporting face on which the shank chisel can be supported. The chisel holder is coupled to the base part by a pivot bearing, and the chisel holder rests against a mating face of the base part. This invention provides a stress-optimized design for the above-mentioned arrangement. Thus, according to this invention, when the chisel holder is mounted, a contact area formed between the contact face and the mating face is located between a rotation axis or a rotation path of the pivot bearing and the supporting face.
Claims19
A device for securing a shank chisel, having a base element on which a chisel holder is exchangeably fastened, wherein the chisel holder has a chisel receiver for the shank chisel, the chisel holder has a support face on which the shank chisel can be supported, the chisel holder is connected to the base element by a linked seating, and the chisel holder rests against a counter-face of the base element with a contact face, the device comprising:
- in a mounted state of the chisel holder (20) a contact area formed between the contact face (23.4) and the counter-face (19.2) arranged between one of an axis of rotation and a path of rotation of the linked seating and of the support face (26), and in the mounted state of the chisel holder (20) the one of the axis of rotation and the path of rotation intersecting the chisel receiver (28) of the chisel holder (20).
A device for securing a shank chisel. having a base element on which a chisel holder is exchangeably fastened. wherein the chisel holder has a chisel receiver for the shank chisel, the chisel holder has a support face on which the shank chisel can be supported, the chisel holder is connected to the base element by a linked seating, and the chisel holder rests against a counter-face of the base element with a contact face, the device comprising:
- in a mounted state of the chisel holder (20) a contact area formed between the contact face (23.4) and the counter-face (19.2) arranged between one of an axis of rotation and a path of rotation of the linked seating and of the support face (26), the base element (10) having a recessed receiver (10.3) which the chisel holder (20) engages with a holding section (22), and the chisel receiver (28) arranged at least partially near the recessed receiver (10.3).
A device for securing a shank chisel, having a base element on which a chisel holder is exchangeably fastened, wherein the chisel holder has a chisel receiver for the shank chisel, the chisel holder has a support face on which the shank chisel can be supported, the chisel holder is connected to the base element by a linked seating, and the chisel holder rests against a counter-face of the base element with a contact face, the device comprising:
- in a mounted state of the chisel holder (20) a contact area formed between the contact face (23.4) and the counter-face (19.2) arranged between one of an axis of rotation and a path of rotation of the linked seating and of the support face (26), and the chisel holder (20) having a concave linkage section (23.1) which works together with a convex linkage section (19) of the base element (10) for forming the linked seating.
A device for securing a shank chisel, having a base element on which a chisel holder is exchangeably fastened, wherein the chisel holder has a chisel receiver for the shank chisel, the chisel holder has a support face on which the shank chisel can be supported, the chisel holder is connected to the base element by a linked seating, and the chisel holder rests against a counter-face of the base element with a contact face, the device comprising:
- in a mounted state of the chisel holder (20) a contact area formed between the contact face (23.4) and the counter-face (19.2) arranged between one of an axis of rotation and a path of rotation of the linked seating and of the support face (26), the chisel holder (20) having a holding section (22) which forms the chisel receiver (28), and a shoulder formed transversely with respect to a center longitudinal axis of the chisel receiver (28) which laterally adjoins the holding section (22) and supports a linkage section (23.1) of the chisel holder (20).
A device for securing a shank chisel, having a base element on which a chisel holder is exchangeably fastened, wherein the chisel holder has a chisel receiver for the shank chisel, the chisel holder has a support face on which the shank chisel can be supported, the chisel holder is connected to the base element by a linked seating, and the chisel holder rests against a counter-face of the base element with a contact face, the device comprising:
- in a mounted state of the chisel holder (20) a contact area formed between the contact face (23.4) and the counter-face (19.2) arranged between one of an axis of rotation and a path of rotation of the linked seating and of the support face (26), and in the mounted state of the chisel holder (20) the axis of rotation of the linked seating intersecting the center longitudinal axis of the chisel receiver (28).
A device for securing a shank chisel, having a base element on which a chisel holder is exchangeably fastened, wherein the chisel holder has a chisel receiver for the shank chisel, the chisel holder has a support face on which the shank chisel can be supported, the chisel holder is connected to the base element by a linked seating, and the chisel holder rests against a counter-face of the base element with a contact face, the device comprising:
- in a mounted state of the chisel holder (20) a contact area formed between the contact face (23.4) and the counter-face (19.2) arranged between one of an axis of rotation and a path of rotation of the linked seating and of the support face (26), the base element (10) having a fastening section (10.1) attachable to a rotatory body of a milling machine, a connecting shoulder (10.2) which supports the linkage section (19) adjoining the fastening section (10.1), and the chisel holder (20) covering the connecting shoulder (10.2) at least partially on a side facing away from the fastening section (10.1) by a cover (21).
A device for securing a shank chisel, having a base element on which a chisel holder is exchangeably fastened, wherein the chisel holder has a chisel receiver for the shank chisel, the chisel holder has a support face on which the shank chisel can be supported, the chisel holder is connected to the base element by a linked seating, and the chisel holder rests against a counter-face of the base element with a contact face, the device comprising:
- in a mounted state of the chisel holder (20) a contact area formed between the contact face (23.4) and the counter-face (19.2) arranged between one of an axis of rotation and a path of rotation of the linked seating and of the support face (26), in the mounted state a seating surface (23.3) of the chisel holder (20) resting against a detent (18) on the base element (10), adjoining the seating surface (23.2) and facing away from the linked seating, the chisel holder (20) having a fixation element (24) with a screw receiver (27), the fixation element (24) spaced apart from a fastening shoulder (15) of the base element (10), and the chisel holder (20) clamped together with the fastening shoulder (15) of the base element (10) by a fastening screw passing through the screw receiver (27).
A device for securing a shank chisel, having a base element on which a chisel holder is exchangeably fastened, wherein the chisel holder has a chisel receiver for the shank chisel, the chisel holder has a support face on which the shank chisel can be supported, the chisel holder is connected to the base element by a linked seating, and the chisel holder rests against a counter-face of the base element with a contact face, the device comprising:
- in a mounted state of the chisel holder (20) a contact area formed between the contact face (23.4) and the counter-face (19.2) arranged between one of an axis of rotation and a path of rotation of the linked seating and of the support face (26), the chisel holder (20) having a support face (26) around the chisel receiver (28), on which the shank chisel (30) is supported by a wear-protection element (31), and a linked seating arranged in a half of an area of the chisel receiver (28) facing the support face (26).
Dependencies are inferred from the claim text.