US2727573A - Presses - Google Patents

Description

United States Patent O PRESSES Y Josef Ott, Gopping'en, Germany, assignor'to'L. Schuler, G., Goppingen (Wurttemberg), Germany Appiicanon November 29, `195o, serial No. 198,076 Claims priority, application Germany April 2t), 1950 2 Claims. (Cl. 164-102) This invention relates to presses, especially eccentric presses, with :bottom drive, preferably an under oor 'Presses with under floor drive are known, and

out deflection of the drive direction.

Presses with `bottom .drive and without deflection of the power direction are known, but only with a drive from a longitudinal drive shaft and not with a transverse shaft drive.

ta Tes of the known 'the further advantage that the supports, for equal wor example, bushes of U-shape cross-section, which have good resistance to deformation.

A further feature of the invention consists in that the is imposed.

According to a further feature of the invention means transmitting motion from the transverse shafts to the movable press element, may be, for example in the form of connecting rods and are separated by partitions or the l 2,727,573 Patented DecaZO, 1955 drawn.

A furtherfeature of the invention resides in the enclosure of the lower drive members within a plurality of members very conveniently accessible.

Further features of the invention will 'be apparent from the following description of a constructional example, illustrated in the drawings, and from the claims.

ln the drawing:

Fig. 1 is a front elevation of a accordance with the invention.

Fig. y2 -is a corresponding side elevation, and A Fig. 13 is a section on an enlarged scale taken on line 3-3fof Fig. l.

press constructed in with Ja gear `11 which gear and pinion constitute a speed reduction gear. The shaft of gear 11 forms a pinion 14 common to the eccentric drive gear wheels 12, 13. The gear 11 meshes with a gear 111 of equal diameter whose shaft forms a common drive pinion 141 for the eccentric drive gear wheels 121, Each of the gear wheels 12, 13 and 121, 131 is integral with an eccentric 15, and the are mounted on shafts 16, 161 sup- The bearings of the shafts 16, 161

All the aforesaid shafts extend other and transversely to the frame of the press.

The drive is transmitted from the eccentrics 15 by connecting rods 17, four being shown in the present eX- ample, to movable tool 17 are formed as oil baths and also with recesses 29 in which engage extensions 30 of bolts 31 xed, preferably with possibility of adjustment, in the movable press element 18.

The extensions 30 are journalled on bearing pins 32 mounted in the connecting rod head. In the present example the recesses 29 are milled through and are closed oil tight at the ends by cover plates 33. Other oil tight cover plates 34 on the connecting rod headsclose the bores for the bearing pins 32 from the outside, so that the recesses 29 can receive an oiler 35.

On uprights of the frame are attached sheet metal plates 36 which overlap sheet metal plates 37 fixed to the movable press element 18. The plates 36, 37 constitute walls enclosing the space around the press frame from the vertical space in which the connecting rods 17 move.

Openings 38 are provided in the sloping front wall of the frame, which may be closable, through which the connecting rods 17 can be removed after they are lowered to the bottom of the foundation well.

Having thus described the invention, what is claimed as new and desired to be secured by Letters Patent, is:

l. A power transmission for a press having a reciprocably movable tool carrying element and a rectangular frame comprising, in combination, substantially centrally arranged drive shaft means extending in transverse direction to the longitudinal axis of said frame and journalled thereon, two pairs of connecting rods attached to opposite ends of said tool carrying element, gear means disposed at opposite sides of said drive shaft means and operatively connected thereto for rotation in opposite directions, eccentric means, gear wheel means in mesh with said gear means, respectively, respective adjacent eccentric means and gear wheel means being connected with each other, said eccentric means being joined to a respective pair of said connecting rods, whereby said gear wheel means are disposed intermediate the connecting rods of each pair, and shaft means for each pair of said adjacent eccentric means and said gear wheel means and extending substantially parallel to said drive shaft means and journalled in said frame, whereby a concentrated and balanced drive transmission is afforded to said tool carrying element.

2. A power transmission for a press having a reciprocably movable tool carrying element and a rectangular frame comprising, in combination, substantially centrally arranged drive shaft means extending in transverse direction to the longitudinal axis of said frame and journalled thereon, two pairs of connecting rods attached to opposite ends of said tool carrying element, respective gear means disposed at opposite sides of said drive shaft means and operatively connected to the latter for rotation in opposite directions, gear wheels means in driving connection with said gear means, respectively, eccentric means connected to a respective pair of connecting rods, said gear wheel means being disposed intermediate said connecting rods of said pair thereof and being integral with said eccentric means, and shaft means for each respective pair of said gear wheel means and journalled in said frame substantially parallel to said drive shaft means, said eccentric means and said gear wheel means being positioned on said shaft means and being concentrically rotated from said drive shaft means, whereby a substantially balanced drive transmission is afforded to said tool carrying element.

References Cited in the le of this patent UNITED STATES PATENTS

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