JPH0254603U

JPH0254603U -

Info

Publication number: JPH0254603U
Application number: JP13382888U
Authority: JP
Priority date: 1988-10-12
Filing date: 1988-10-12
Publication date: 1990-04-20

Description

[Brief explanation of drawings]

第１図はキヤスターの車輪を回転自在としたと
きにおける手前側の車輪を取外した状態の正面図
、第２図は一対の車輪を取外した状態の要部の縦
断側面図、第３図は車輪を回転自在としたときに
おける縦断正面図、第４図はキヤスターの車輪を
回転不能としたときにおける手前側の車輪を取外
した状態の正面図、第５図イは制動操作体の正面
図、第５図ロは同じく側面図である。１：車輪、２：係合空間、３：係合歯、４：係
合用間隙、５：支軸、６：カバー部材、７：カバ
ー、８：壁体、９：附勢部、１０：案内部、１１
：開口部、１２：取付壁、１３：枢支ピン、１４
：軸支孔、１５：屈曲部、１６：連結部、１７：
案内口、１８：取付軸、１９：支持筒、２０：突
部、２１：制動操作体、２２：制動操作部、２３
：取付孔、２４：案内片、２５：被附勢片、２６
：枢支凹所、２７：枢支ピン挿通用空間、２８：
ボス、２９：係合ピン。 Figure 1 is a front view with the front wheel removed when the caster wheels are rotatable, Figure 2 is a longitudinal side view of the main parts with a pair of wheels removed, and Figure 3 is the wheel. Fig. 4 is a front view with the front wheel removed when the caster wheel is not rotatable, Fig. 5A is a front view of the brake operating body, Figure 5B is also a side view. 1: Wheel, 2: Engagement space, 3: Engagement tooth, 4: Engagement gap, 5: Support shaft, 6: Cover member, 7: Cover, 8: Wall, 9: energizing part, 10: Guide Part, 11
: Opening, 12: Mounting wall, 13: Pivot pin, 14
: Pivot hole, 15: Bent part, 16: Connecting part, 17:
Guide port, 18: Mounting shaft, 19: Support cylinder, 20: Projection, 21: Brake operation body, 22: Brake operation unit, 23
: Mounting hole, 24: Guide piece, 25: Forced piece, 26
: Pivot recess, 27: Pivot pin insertion space, 28:
Boss, 29: Engagement pin.

Claims

[Claims for Utility Model Registration] An engagement space is provided by opening the inside to the side with a gap left between the outer circumference and the outer circumference, and engagement teeth are provided at intervals on the outer circumference in the engagement space. a wheel having an engagement gap between the engagement teeth, and a support shaft protruding from the engagement space side so as to substantially coincide with the shaft center; One side of the cover is provided with an opening for the insertion of a brake operating body, looking toward the side of the engagement space of the wheel, and a pair of brake operating bodies approximately parallel to the axis of the cover are inserted into the opening. A pivot pin for pivoting is provided protrudingly with at least its tip facing into the opening, and the other side of the cover supports a support shaft of the wheel to rotatably support the wheel. A wall body with a shaft support hole bored therein is provided below along the engagement space side of the wheel, and both ends of the wall body are located at the lower side of one side of the wall body, so that the wall body is approximately inverted U-shaped. , a biasing portion having a bent portion at its tip positioned below the opening is provided, and furthermore, an urging portion is provided at the upper side of one side of the wall body, and an urging portion is provided in an arc shape centered on the pivot pin, and at least the upper end of the biasing portion is provided. A guide portion is provided that has a guide port that looks into the engagement gap of the wheel, and whose lower end looks toward the spindle side from the tip surface of the engagement teeth of the wheel, and the whole is integrally formed from synthetic resin. a cover member having a shape and/or shape that allows one end thereof to be a brake operating portion that is visible to the outside through the opening of the cover member, and the other end thereof to be inserted into the inside of the cover member through the opening of the cover member; a guide piece having a mounting hole on the other end for attaching an engaging pin for communicating with the guide port of the guide portion of the cover member, and positioned on the side of the guide portion of the cover member; A biased piece is provided whose lower end surface is in contact with the upper surface of the biasing portion of the cover member and is biased upward, and furthermore, pivot pins of the cover member are internally installed on both sides of the cover member substantially in the center so as to be freely rotatable. A brake operating body having a pivot recess or a pivot opening opened at least at the other end of the body, and the opening serving as a space for inserting a pivot pin, and a guide portion of the cover member. A caster comprising an engagement pin inserted into a guide hole, detachably engaged with an engagement gap of the wheel, and attached to a mounting hole of the brake operating body.