EP0223575A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Drilling apparatus
Assignee: Taiheiyo Cement Corp
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Filing: 1986-11-14
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Granted: —
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Expires: 2006-11-14
Abstract
Abstract Drilling apparatus (l) to be mounted as a replacement for the bucket of a self-propelled hydraulic shovel (30) comprises a drill (42) carried in a guide cell (9) mounted at the end of a boom (32a) of the self-propelled chassis, the guide cell being attached to the boom by a pivotable joint (7) and an actuator (ll) operatively connected between the guide cell and the boom to pivot the boom about an axis transverse to the general longitudinal axis of the boom; the pivot (8) of the pivotable joint is preferably offset from said general longitudinal axis and a rotatable joint (5) is attached between the pivotable joint and the boom, turning means (3) being operatively connected between the pivotable joint and the boom to rotate the guide cell about said general longitudinal axis.
Inventors
- 👤 Kenichi C/O Chugoku Blasting Co. Ltd. Tanaka
- 👤 Hiromi Kawakami
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-09 09:57
CPC Classifications
E; E21; E21B; E21B7/00; E21B7/02; E21B7/025; E02; E02F; E02F3/00; E02F3/04; E02F3/96; E02F3/963; E21B7/027; E21B7/028
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
77 words
Drilling apparatus comprising a drill carried in a guide cell mounted at the end of the boom of a self-propelled chassis characterised in that the guide cell (9) is attached to the boom (32) by a pivotable joint (7), an actuator (ll) being operatively connected between the guide cell and the boom to pivot the boom about an axis transverse to the general longitudinal axis of the boom; whereby parallel holes can be drilled by the apparatus.
Claim 2
Dependent Claim
77 words
Drilling apparatus comprising a drill carried in a guide cell mounted at the end of the boom of a self-propelled chassis characterised in that the guide cell (9) is attached to the boom (32) by a pivotable joint (7), an actuator (ll) being operatively connected between the guide cell and the boom to pivot the boom about an axis transverse to the general longitudinal axis of the boom; whereby parallel holes can be drilled by the apparatus.
Claim 3
Dependent Claim
68 words
Drilling apparatus as claimed in claim l, characterised in that the pivot (8) of the pivotable joint (7) is offset from the general longitudinal axis of the boom (32) and a rotatable joint (3) is attached between the pivotable joint (7) and the boom (32), turning means (5) being operatively connected between the pivotable joint and the boom to rotate the guide cell about said general longitudinal axis.
Claim 4
Dependent Claim
94 words
Apparatus as claimed in claim l and claim 2, characterised in that the self-propelled chassis is a self-propelled hydraulic shovel (30) or the like, the body (49) of which can swing about a vertical axis with respect to the crawler (50) and the boom (32) of which can be tilted about a horizontal axis with respect to the body; the guide cell (9) having an elongate support member (l0) to one side of which the drill (42) is longitudinally movably mounted and to the other side of which the pivotable joint (7) is attached.
Claim 5
Dependent Claim
50 words
Apparatus as claimed in claim 3, characterised in that the pivotable joint (7) has one arm (7a) attached to the rotatable joint (3) and the other arm (7b) attached to the support member (l0); the actuator being a telescopic ram (ll) connected between the rotatable joint and the support member.
Claim 6
Dependent Claim
37 words
Apparatus as claimed in claim 4, characterised in that the rotatable joint is a motor (3) fixed to the end of the boom (32), the motor shaft (5) being attached to arm (7a) of the bracket (7).
Claim 7
Dependent Claim
63 words
Apparatus as claimed in any of claims 3 to 5, characterised in that one end of the guide cell support member (l0) has a foot pad (l5) and a centralizer (l6) for the drill rod (42) which is rotated by a drill motor (2l) mounted on a carriage (20) that is slideable longitudinally of the support member to axially move the drill rod.
Claim 8
Dependent Claim
47 words
Apparatus as claimed in any of claims 2 to 6, characterised in that a bracket (2) is pivotally attached at (34) to the boom (32) and the rotatable joint (3) is mounted on the bracket; an actuator (37) being operatively connected between the bracket and the boom.
References Cited (Backward Citations)
No citation records indexed.
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