Nansin Co., Ltd.

Ricoh Company, Ltd.

Akinori Saito

Atsushi Yamamoto

Satoshi Takahashi

Hiroshi Yamashita

Tsuyoshi Sugimoto

Toyoshi Sawada

Suzuka Amemori

Keiji Makabe

Nao Kanamori

Shinya Nakayama

Minoru Masuda

Hiroshi Yamada

Ryota Inoue

Kenji Yamaguchi

Satoyuki Sekiguchi

Yoshihiro Moriya

Yasutada Shitara

Daisuke Asahina

Tatsuru Moritani

Kiyotada Katoh

Tohru Matsumoto

Minoru Onagi

Hayato Suzuki

The present invention relates to an improvement in caster swivel restriction structure. The present invention is characterized in that a swivel brake plate has a body piece having a plurality of through holes arranged therein and latch pieces bent downward from the body piece, a support base has latch hole portions for fitting the latch pieces in a vertical slidable manner, a gap portion provided at a location corresponding to below the group of through holes formed in the swivel brake plate, and cushioning members or biasing members which are disposed in the gap portion and supports the swivel brake plate aloft and which is repulsively compressed when downward force is applied to the swivel brake plate.

Caster swivel restriction structure

The present invention relates to a novel trolley coupling structure that allows coupling of base parts of trolleys aligned in the vertical or horizontal direction. The present invention provides a trolley coupling structure in which a first receiving recess part is provided in a base part of one trolley, a second receiving recess part is provided in a base part of another trolley, a locking member is pivotally attached to the first receiving recess part, a recess part body and a bent section are formed in the respective first and second receiving recess parts, and retaining of the locking member is achieved by constraining and locking a constraining piece part of the locking member at the bent section.

Trolley coupling structure

A caster mounting portion has a mounting member housing portion which houses the mounting member, the mounting member has a rotary shaft portion which is pivotally supported in a bearing recessed portion in the mounting member housing portion, an abutment body in which the rotary shaft portion is provided at an eccentric position and which is displaced by rotation to be widened to close the inside of the mounting member housing portion, an upper locking piece which engages with a locking receiving portion of an opposed wall, a lower locking piece which abuts against the bottom face of a latching portion, and a locking stepped portion which is urged by a leading end of an elastic arm, climbing over the aforementioned latching portion, and engages with the latching portion.

Mounting structure for caster

A toner includes a binder resin including a copolymer resin containing structural units derived from crystalline and non-crystalline resins, respectively. Spin-spin relaxation time (t50) of the toner at 50&#xb0; C. measured by pulse NMR is &#x2266;0.05 msec., spin-spin relaxation time (t130) at 130&#xb0; C. when warmed from 50&#xb0; C. to 130&#xb0; C. is &#x3e;15 msec., and spin-spin relaxation time (t'70) at 70&#xb0; C. when cooled from 130&#xb0; C. to 70&#xb0; C. is &#x2266;1.00 msec. A binarized image obtained by binarizing a phase image of the toner observed by a tapping mode AFM based on intermediate value between maximum and minimum phase difference values in the phase image includes first phase difference images constituted by large phase-difference portions and a second phase difference image constituted by a small phase-difference portion. The first phase difference images are dispersed in the second phase difference image. The dispersion diameter of the first phase difference images is 150 nm or less.

Toner, developer, image forming apparatus, and image forming method

A toner is provided. The toner includes a crosslinked polyester resin, and a block copolymer. The crosslinked polyester resin includes a diol component, which includes an aliphatic diol component having 3 to 10 carbon atoms in an amount of 50% by mole, and a crosslinked component, which is at least one of a crosslinked component of an aliphatic alcohol having three or more valences and a crosslinked component of an aliphatic acid having three or more valences, and the block copolymer includes a crystalline segment (a) and a non-crystalline segment (b). The toner has a first glass transition temperature (Tgst) of from 20&#xb0; C. to 50&#xb0; C., which is determined by subjecting the toner to differential scanning calorimetry (DSC) and measuring a glass transition temperature in a first temperature rising process in the differential scanning calorimetry (DSC).

Toner for image formation, and developer and image forming apparatus using the toner

A particulate material production method is provided. The particulate material production method includes ejecting a particulate material composition liquid, which includes an organic solvent and a particulate material composition including at least a resin and dissolved or dispersed in the organic solvent, from at least one nozzle to form droplets of the particulate material composition liquid in a gas phase; and solidifying the droplets of the particulate material composition liquid to prepare particles of the particulate material composition. The droplet solidifying step includes contacting the droplets with a poor solvent for the particulate material composition.

Particulate material production method, and particulate material production apparatus

A push handle comprises a pair of column support portions provided on left and right sides and extendable/contractible in a vertical direction, a holding rod portion integrally interposed between upper ends of the pair of column support portions and extends toward left and right outer sides of the column support portions, and column support lock locking an extended posture of the column support portion. A entire length of the column support portion when contracted is set to be shorter than one of longitudinal and lateral lengths of the loading platform surface, an entire length of the holding rod portion is set to be shorter than the other of the longitudinal and lateral lengths of the loading platform surface to allow fitting in an accommodating groove portion when the push handle is folded.

Hand truck

Growing community of inventors

Tokyo, Japan

Akinori Saito