Abstract: Provided is a connecting rod which can be manufactured without increasing the cost, and is provided with an effectively strengthened rod portion. The rod portion includes a pair of ribs (21) extending in parallel to each other in cross sectional view, and a web (22) connected between substantially vertically middle parts of the ribs. Each rib includes a rib root portion (23) located in a vertically central part thereof in cross sectional view, and a pair of rib tip portions (24) located at both vertical ends thereof, and each rib tip portion has a higher hardness than the web by 40 HV or more, and the rib root portion has a higher hardness than the web by 30 HV or more.

Abstract: Provided is a connecting rod which can be manufactured without increasing the cost, and is provided with an effectively strengthened rod portion. The rod portion includes a pair of ribs (21) extending in parallel to each other in cross sectional view, and a web (22) connected between substantially vertically middle parts of the ribs. Each rib includes a rib root portion (23) located in a vertically central part thereof in cross sectional view, and a pair of rib tip portions (24) located at both vertical ends thereof, and each rib tip portion has a higher hardness than the web by 40 HV or more, and the rib root portion has a higher hardness than the web by 30 HV or more.

Abstract: To provide a product accumulation device with superior general-purpose capabilities, being able to cope with the modified specification of target products only by partially altering the structure thereof. An accumulation means of a product accumulation device includes: a rotary member having a product contact surface relative to products supplied from the product supply means, and a guide member that is provided with the rotary member and that shifts the products from the product contact surface to an approximately perpendicular direction relative to the product contact surface by means of the rotation of the rotation member, thereby being able to cope with the modified specification of target products only by partially altering its structure.

Abstract: To provide a product accumulation device with superior general-purpose capabilities, being able to cope with the modified specification of target products only by partially altering the structure thereof. An accumulation means of a product accumulation device includes: a rotary member having a product contact surface relative to products supplied from the product supply means, and a guide member that is provided with the rotary member and that shifts the products from the product contact surface to an approximately perpendicular direction relative to the product contact surface by means of the rotation of the rotation member, thereby being able to cope with the modified specification of target products only by partially altering its structure.