Konica Minolta, Inc.

Konica Minolta Technology Development (wuxi) Co., Ltd.

Epiroc (nanjing) Construction and Mining Equipment Co., Ltd.

Jianming Shi

Teruo Nagashima

Yoshiki Omichi

Linfeng Zhou

Mats Hedenborg

Shuang Chu

Yunzhen Yang

Per Elven

Zhongqi Cao

Zhongxi Zhou

Dongliang Bu

Yucang Zheng

A rock drill telescopic arm is provided having a fixed arm which is sleeved on a movable arm; a telescopic oil cylinder; a plurality of adjusting blocks in the fixed arm along a circumferential direction thereof; a plurality of adjusting screw rods for respectively adjusting the position of each of the adjusting blocks on the fixed arm; a wear-resistant sliding block between at least part of the adjusting blocks and the movable arm; and a retainer at an opening end of the fixed arm for preventing the wear-resistant sliding block from moving along a telescoping direction of the movable arm, wherein the movable arm can be driven by the telescopic oil cylinder to slide along the wear-resistant sliding block. A rock drill equipped with the rock drill telescopic arm provides for convenient adjustment of a gap between the fixed arm and the movable arm.

Rock drill telescopic arm and rock drill

The present sheet conveying apparatus includes: a resist roller pair that corrects skew of a sheet conveyed from a sheet supplying unit; and a guide portion disposed at an upstream side relative to the resist roller pair in a sheet conveying direction, the guide portion including a first guide and a second guide disposed opposite to the first guide with a sheet conveying path therebetween, the second guide being located at a projection side of a curved portion formed in the sheet when a tip of the sheet is conveyed to a nip portion of the resist roller pair that is stopped, the second guide being divided into a plurality of divided guides in an axial direction of the resist roller pair, a flexible film being disposed to cover at least a portion of a space between the plurality of divided guides.

Sheet conveying apparatus and image forming apparatus

Growing community of inventors

Jiangsu, China

Jianming Shi