LOCK MECHANISM

• Main Authors: SATAKE NORIAKI, YAMANE NORIYO, TANIGUCHI YASUSHI, TANIGUCHI YOSHINORI
• Format: Patent
• Language: English; Japanese
• Published: 17.03.2023
• Subjects: BEARINGS; BLASTING; DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS ORMACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS,CLIPS, WEDGES, JOINTS OR JOINTING; ELEMENTS OR CRANKSHAFT MECHANISMS; ENGINEERING ELEMENTS AND UNITS; FLEXIBLE SHAFTS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; LIGHTING; MECHANICAL ENGINEERING; PERFORMING OPERATIONS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; SEATS SPECIALLY ADAPTED FOR VEHICLES; SHAFTS; THERMAL INSULATION IN GENERAL; TRANSPORTING; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDEDFOR; VEHICLES IN GENERAL; WEAPONS

To provide a lock mechanism which restricts rotation between brackets and can prevent occurrences of rattling and abnormal noise in a lock state in addition to restriction of the rotation.SOLUTION: The invention comprises a lock shaft 12 attached to a first bracket 3, a lock shaft support shaft 11, and a biasing spring that biases the lock shaft 12 toward a direction such that the lock shaft 12 comes in contact with a second bracket 4. Rotation progression restricting stoppers 17, 18 are brought into contact with each other, thereby restricting rotation of the first bracket 3 and the second bracket 4 in a locking direction without causing rattling. The lock shaft 12 contacts both of a first side surface 21 and a second side surface 22 and is set such that a pair of tangent lines 25, 26 of the lock shaft 12 forms a wedge 27, thereby restricting rotation of the first bracket 3 and the second bracket 4 in a direction opposite to the locking direction without causing rattling.SELECTED DRAWING: Figure 7 【課題】ブラケット間の回転を規制するロック機構において、回転の規制に留まらず、ロック状態におけるガタツキや異音の発生をなくすことができるロック機構を提供する。【解決手段】第１ブラケット３に取り付けられたロック軸１２と、ロック軸支持軸１１と、ロック軸１２を第２ブラケット４に当接する方向に向けて付勢する付勢ばねとを備えており、回転進行規制ストッパ１７、１８が互いに当接することにより、第１ブラケット３及び第２ブラケット４はロックさせる方向の回転がガタツキなく規制され、ロック軸１２は、第１側面２１と第２側面２２の両方に接触し、かつロック軸１２の一対の接線２５、２６がくさび２７を形成されるように設定されていることにより、第１ブラケット３及び第２ブラケット４はロックさせる方向と反対方向への回転がガタツキなく規制される。【選択図】図７