Brushing – scrubbing – and general cleaning – Machines – Brushing
Patent
1997-10-15
2000-02-15
Till, Terrence R.
Brushing, scrubbing, and general cleaning
Machines
Brushing
1510404, A46B 910, A46B 1302
Patent
active
060238070
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
1. Field of the Invention
The invention relates to a drive unit for a bolt-cleaning device or a thread-cleaning device. A possible thread-cleaning device which operates with radially movable brush bars and which consists of two concentric tubular pieces which can be moved circumferentially relative to each other is described in DE-U 93 13 722.2 which was made available to the public on Nov. 25, 1993. The radial displacement is accomplished with circumferentially distributed setting cams on one of the tubular pieces.
2. Description of the Related Art
The cleaning device disclosed in DE-U 93 13 722.2 has a drive mechanism on the rearward end segment of the above-mentioned concentric cylindrical piece which is provided with a central drive pin 1. The central drive pin 1 is firmly connected to the inner tubular piece 2 and therefore rotates the two concentric tubular pieces (inner sleeve 2 and outer sleeve 4) around the threaded bolt to be cleaned. The length of the tubular piece determines the maximum length of the thread to be cleaned.
The invention is intended to provide help here and assigns itself the task of expanding the scope of application of the cleaning attachment and also of devising the driving principle for it, so that other--exchangeable--cleaning devices may be used.
SUMMARY OF THE INVENTION
This is accomplished by the invention having fundamental features including a drive unit with a drive motor arranged offset on the side relative to the axis of the bolt to be cleaned which drives a cylindrical coupling ring via a rotary drive member. The coupling ring is open on both sides (axially) and displays a flanging-on region on one side through which the above-mentioned (or a differently designed, preferably open on both sides) cleaning device can be mounted non-rotatably as a cleaning attachment.
If the drive motor, which may be a pneumatic motor or an electrically powered motor, is moved sideways relative to the central or cleaning axis of the coupling ring and cleaning attachment and securely mounted on a device body then the important result is obtained that the cleaning attachment and drive unit are open axially in both directions. Very long threads and bolts can thus be conveniently cleaned due to the fact that the bolt enters on one side of the cleaning device, passes through it and emerges again on the other side where the drive unit is flanged on but offset to the side. In this way it is possible to observe the cleaning process; both the threaded segment having passed through (cleaned) and also the threaded segment entering (to be cleaned) are in plain view.
By offsetting the drive axis relative to the cleaning axis the principle is created that the transmission of forces to and application of force by the brush bars are always close together--even in the case of very long threading. In addition, due to the possibility of stepping down the rotation speed of the drive pinion (on the motor shaft) to the rotation speed of the cylindrical coupling ring the cleaning power is clearly increased. For this purpose the diameters of the pinion and coupling ring are distinctly different.
The power of the motor is transmitted to the cleaning attachment via the slip-proof rotary drive member and the coupling ring; it is rotatable mounted in the device body of the unit, for which, e.g., three circumferentially distributed rotary bearings are used whose bearing axis is parallel but offset to the side from the cleaning axis. The points of attack of the bearings engage circumferential grooves on the coupling ring so that an axial guidance is achieved.
The coupling ring has a flanging-on region in the axial direction on which the cleaning attachment is non-rotatably mounted. The rotation-proof mounting may be detachable so that the drive unit can also be used for other cleaning attachments or removed, maintained and cleaned by itself.
Even if the drive is only running slowly in order to apply high cleaning force the brush bars being displaced by the initially mentioned setting
REFERENCES:
patent: 3495288 (1970-02-01), Ford
patent: 3916469 (1975-11-01), Anthem et al.
patent: 3988798 (1976-11-01), Kratt
patent: 4014062 (1977-03-01), Scott et al.
patent: 4205407 (1980-06-01), King et al.
LandOfFree
Driving unit for cleaning accessory does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Driving unit for cleaning accessory, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Driving unit for cleaning accessory will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1896198