Lateral pin and lateral pin type tooth point structure for use with lateral pin type fixture for working machine bucket

Abstract

A lateral pin type tooth point structure for working machine bucket with which rust will not be generated in the critical portions of the lateral pin; there is no need for using a special tool for removing the pin as is required with the prior art, i.e., pin removal can be made simply and easily simply by using an ordinal tool; the need for making a hammering operation in pin removal as is required with the prior art is eliminated, which gives excellency in terms of securing the safety of operator; and the lateral pin body head portion and the set bolt head portion can be protected against damage due to the contact with the soil, and the like, at the time of ground excavation by the working machine bucket.

1 . A lateral pin for use with lateral pin type fixture for working machine bucket that is inserted into respective lateral holes penetrating through a particular one of adapters disposed in a row on the excavating edge part side of a working machine bucket and a tooth point fitted to that adapter from one side of the respective lateral holes, and screw-fastened on the other side thereof for fixedly installing said tooth point to said adapter, comprising:
 a bolt type lateral pin body having a threaded part for screw fastening in a projection end part thereof;   a washer loaded on the basal end part side of said lateral pin body;   a washer and a sealing material against storm water, and the like, intervened on the projection end part side of said lateral pin body; and   a screw thread fastener screw-fastened to said threaded part.   
   
   
       2 . A lateral pin for use with lateral pin type fixture for working machine bucket that is inserted into respective lateral holes penetrating through a particular one of adapters disposed in a row on the excavating edge part side of a working machine bucket and a tooth point fitted to that adapter from one side of the respective lateral holes, and screw-fastened on the other side thereof for fixedly installing said tooth point to said adapter, comprising:
 a bolt type lateral pin body provided with an internal thread toward the inside of a projection end part thereof;   a washer loaded on the basal end part side of said lateral pin body;   a seal washer covered with a sealing material against storm water, and the like, a washer, and a seal washer covered with a sealing material against storm water, and the like, which are intervened on the projection end part side of said lateral pin body; and   a bolt screw-fastened to the internal thread of said lateral pin body.   
   
   
       3 . A lateral pin for use with lateral pin type fixture for working machine bucket that is inserted into respective lateral holes penetrating through a particular one of adapters disposed in a row on the excavating edge part side of a working machine bucket and a tooth point fitted to that adapter from one side of the respective lateral holes, and screw-fastened on the other side thereof for fixedly installing said tooth point to said adapter, comprising:
 a bolt type lateral pin body provided with an external thread in the projection end part region thereof;   a washer loaded on the basal end part side of said lateral pin body;   a washer and a seal washer covered with a sealing material against storm water, and the like, which are intervened in the projection end part region of said lateral pin body; and   a cap nut screw-fastened to the external thread of said lateral pin body.   
   
   
       4 . A lateral pin type tooth point structure for working machine bucket which inserts a lateral pin into respective lateral holes penetrating through a particular one of adapters disposed in a row on the excavating edge part side of a working machine bucket and a tooth point fitted to that adapter from one side of the respective lateral holes, and screw-fastens the lateral pin on the other side thereof for fixedly installing said tooth point to said adapter, wherein
 said lateral pin includes a pin body with a polygonal head portion and an internal thread part provided on the insertion tip side thereof, and a set bolt with an external thread part screwed in into the internal thread part of the pin body on the other side of said respective lateral holes, and a polygonal head portion;   said tooth point is provided with a receiving recessed portion on the basal end part side thereof into which a loading projected portion of the adapter of said working machine bucket is fitted; on both side walls of this receiving recessed portion, a pair of lateral holes for insertion of the lateral pin is provided; and in the respective regions of the pair of lateral holes, a concaved part for protecting said lateral pin head portion and set bolt head portion against damage due to the contact with the soil, and the like, at the time of ground excavation by the working machine bucket is provided.   
   
   
       5 . A lateral pin type tooth point structure for working machine bucket which inserts a lateral pin into respective lateral holes penetrating through a particular one of adapters disposed in a row on the excavating edge part side of a working machine bucket and a tooth point fitted to that adapter from one side of the respective lateral holes, and screw-fastens the lateral pin on the other side thereof for fixedly installing said tooth point to said adapter, wherein
 said lateral pin includes a pin body with a polygonal head portion and an internal thread part provided on the insertion tip side thereof; a washer fitted to this pin body, and attached to one side of said respective lateral holes; a set bolt with an external thread part screwed in into the internal thread part of the pin body on the other side of said respective lateral holes, and a polygonal head; a washer fitted to the threaded part of said set bolt on the other side of said lateral hole; and a seal washer having a sealing function;   said tooth point is provided with a receiving recessed portion on the basal end part side thereof into which a loading projected portion of the adapter of said working machine bucket is fitted; on both side walls of this receiving recessed portion, a pair of lateral holes for insertion of the lateral pin is provided; and in the respective regions of the pair of lateral holes, a concaved part for protecting said lateral pin head portion and set bolt head portion against damage due to the contact with the soil, and the like, at the time of ground excavation by the working machine bucket is provided.   
   
   
       6 . A lateral pin type tooth point structure for working machine bucket which inserts a lateral pin into respective lateral holes penetrating through a particular one of adapters disposed in a row on the excavating edge part side of a working machine bucket and a tooth point fitted to that adapter from one side of the respective lateral holes, and screw-fastens the lateral pin on the other side thereof for fixedly installing said tooth point to said adapter, wherein
 said lateral pin includes a pin body with a polygonal head portion and an internal thread part provided on the insertion tip side thereof; a washer fitted to this pin body, and attached to one side of said respective lateral holes; a set bolt with an external thread part screwed in into the internal thread part of the pin body on the other side of said respective lateral holes, and a polygonal head; a washer fitted to the threaded part of said set bolt on the other side of said lateral hole; and two seal washers disposed so as to sandwich this washer, having a sealing function against storm water, and the like; said tooth point is provided with a receiving recessed portion on the basal end part side thereof into which a loading projected portion of the adapter of said working machine bucket is fitted; on both side walls of this receiving recessed portion, a pair of lateral holes for insertion of the lateral pin is provided; and in the respective regions of the pair of lateral holes, a concaved part for protecting said lateral pin head portion and set bolt head portion against damage due to the contact with the soil, and the like, at the time of ground excavation by the working machine bucket is provided.