US2705127A

US2705127A - Mounting carriages for rock drills

Info

Publication number: US2705127A
Application number: US246084A
Authority: US
Original assignee: Ingersoll Rand Co
Current assignee: Ingersoll Rand Co
Priority date: 1951-09-11
Filing date: 1951-09-11
Publication date: 1955-03-29
Anticipated expiration: 1972-03-29

Description

March 29, 1955 0, s s 2,705,127

MOUNTING CARRIAGES FOR ROCK DRILLS Filed Sept. 11, 1951 1 I 62 5e R 46 F 24 4O '2 o 42 3 I6 44) Y i I 28 4o 60 42 48 46 26 as OLIVER H NDECQI'ARSED BY ELIZABETH ujseumgekzcumlxf HIS ATTORNEY.

United States Patent 2,705,127 MOUNTING CARRIAGES FOR ROCK DRILLS Oliver H. Sellars, deceased, late of Mendham, N. J., by Elizabeth H. Sellars, executrix, Mendham, N. J., assignor to Ingersoll-Rand Company, New York, N. Y., a corporation of New Jersey Application September 11, 1951, Serial No. 246,084 1 Claim. (Cl. 255-51) This invention relates to rock drills and larly to mounting carriages therefor.

One object of this invention is to construct a mounting carriage for rock drills which may be easily moved from place to place.

Another object of the invention is to construct a mounting carriage for rock drills having a tool-supporting member which may be adjusted longitudinally with respect to the mounting carriage.

A further object of the invention is to construct a mounting carriage for rock drills having boom members so joined to the frame or the carriage as to allow pivotal movement of the boom members with respect to the frame.

Still another object of the invention is to construct a mounting carriage for rock drills having means for causing pivotal movement of the boom members with respect to the frame of the carriage.

Further objects will be in part obvious and in part pointed out hereinafter.

In the drawings in which similar reference numerals refer to similar parts,

Figure l is a side elevation, a mounting carriage for rock drills constructed in accordance with the practice of this invention,

Figure 2 is a plan view, partly in section, of a mounting carriage for rock drills constructed in accordance with the practice of this invention,

Figure 3 is a view taken along the line 3-3 in Figure 1 looking in the direction of the arrows,

Figure 4 is a view taken along the line 44 in Figure 1 looking in the direction of the arrows, and

Figure 5 is a view taken along the line 5-5 in Figure 4 looking in the direction of the arrows.

The mounting carriage for the rock drill is comprised, in the main, of a mobile, substantially U-shaped frame more particupartly in section, showing having a somewhat similar U-shaped tool supporting boom 12 pivotally joined thereto. In the preferred form of the invention the frame 10 is formed by a pair of parallel side members 14 joined at an end by a crosspiece 16 having a pair of brackets 30 secured thereto. For the purpose of facilitating the transportation of the carriage from place to place, each side member 14 is provided with a wheel 18 and axle 20 at the open end 22 of the frame 10. A third pivotal wheel 24 is provided at the mid-portion of the crosspiece 16 in order that the frame may be guided, said wheel having a handle 26 fastened thereto by which the operator may propel and steer the carriage.

Secured to each of the side members 14 at the closed end 28 of the frame 10 are a pair of brackets or stanchions 30 which support a tool-carrying boom 12. To this end each stanchion 30 is provided with a bore 34 in its upper portion to receive the ends 36 of the base member 38 of the boom 12. A pair of tubular side members 40 are secured to the base member 38 in parallel relation to each other so that the distance between the tubular side members 40 of the boom 12 is less than the distance between the side members 14 of the frame 10 in order that the boom 12 may pass downwardly through the frame 10. At their outer ends 42 the tubular side members 40 receive a U-shaped tool-supporting member 44 whose side members 46 are of such a diameter as to allow them to slidably fit within the tubular side members 40. Clamps 48 are provided at the ends of the tubular side members 40 by which the tool supporting member 44 may be securely locked in place.

It Will be readily seen that the construction set out source of power. For purposes of support a pair of threaded rods 56 are pivotally oined to brackets 58 secured to the side and support the weight of the boom.

The operation of the device is as follows. After the mounting carriage has been placed in a desired position firmly anchored there, the boom 12 is raised to its desired height by the operator by means of the handle 54 attached to the worm 52 which drives the wheel 50 attached to the base member 38 of the boom. Once the boom has been raised to the proper position, the nuts 64 are rotated on the threaded rods 56 until they abut the guides 62 for the boom 12 and support the weight of the boom. Should it be desired to extend to cause the tubular side members the extensible portion 44 and rigidly position it.

It will be noted that by providing an extensible pivotable boom member upon a U-shaped frame, the apthe wheels. latter provision is extremely important as it allows the carriage to be used for drilling holes at the base of a rock face or wall.

I claim:

A carriage mounting for rock drills comprising a U-shaped frame, supporting wheels at the open ends of the frame, and a centrally located wheel at the closed end of the frame, a pair of vertical brackets at the closed end of the frame, a U-shaped boom member pivotally mounted on said brackets at its closed end, the legs of said boom'member being adapted to swing between the legs of the said U-shaped frame, a second U-shaped boom member having legs telescoping within the legs of the first said U-shaped boom justably clamped thereon, U-shaped boom ing rods mounted on the U-shaped frame and extending