PROBLEM TO BE SOLVED: To provide a bridge plate capable of improving durability even with a structure in which a middle material is pinched and fixed between a front plate material and a rear plate material.SOLUTION: There are provided a front plate material 13 and a rear plate material 15 arranged to face each other, a middle material 17 containing an end part 31(33) which is arranged on the inside in length direction relative to end parts 23, 35(25, 37) of the front and rear plate materials 13, 15 while pinched and fixed between the front and rear plate materials 13, 15, a recess 39a(39b) partitioned between the end parts 23, 35(25, 37) in facing direction of the front and rear plate materials 13, 15 on the outside in a length direction relative to the end part 31(33) of the middle material 17, and a spacer 19a(19b) containing a base end part 41 which is inserted and fixed into the recess 39a(39b) and a tip end part 43 protruding to the outside in the length direction from the recess 39a(39b).COPYRIGHT: (C)2015,JPO&INPIT【課題】表板材及び裏板材間に中材を挟持固定した構造にしても耐久性を向上させることが可能な渡し板を提供する。【解決手段】相互に対向配置された表板材13及び裏板材15と、表及び裏板材13,15間に挟持固定される共に表及び裏板材13,15の端部23,35(25,37)に対して長手方向内側に配置された端部31(33)を有する中材17と、中材17の端部31(33)に対する長手方向外側で表及び裏板材13,15の対向方向での端部23,35(25,37)間に区画された凹部39a(39b)と、凹部39a(39b)内に挿入固定された基端部41及び凹部39a(39b)から長手方向外側に突出する先端部43を有するスペーサ19a(19b)とを備えた。【選択図】図5
