Toggle-type mold-clamping apparatus
AssigneeToyo Machinery & Metal Co., Ltd.
InventorsToshiharu Nagura, Yoshihiro Okabe
Life of this patent
Estimating the term…
Abstract
In a toggle-type mold-clamping apparatus including at least a pair of swingable arms and toggle pins for connecting the arms in a swingable manner through toggle bushings each of which is constructed of a cylinder element and pellets embedded in a peripheral surface of the cylinder element at intervals of a certain distance so as to be exposed to an inner peripheral surface of the cylinder element, while a lubricant film of a grease mixed with fine particles of solid lubricant is applied to sliding surfaces of the toggle pins and the toggle bushings, resulting in excellent lubrication being realized in the apparatus.
Claims23
In a toggle-type mold-clamping apparatus comprising at least a pair of arms being swingable relative to each other and toggle pins for swingably connecting said arms, the improvement wherein:
- further comprised are toggle bushings each of which is constructed of a cylinder element and a plurality of pellets, in which cylinder element is formed an insertion-hole for receiving said toggle pins therein, said pellets being made of solid lubricants and embedded in a peripheral wall portion of said cylinder element at intervals of a predetermined distance so as to be exposed to an inner peripheral surface of said cylinder element, said toggle bushings being fixed to said arms in their toggle-pin inserting portions so that toggle pins are inserted into said insertion-holes of said toggle bushings, while a lubricant film made of a grease mixed with fine particles of a solid lubricant is applied to sliding surfaces of said toggle pins and said toggle bushings.
A toggle-type mold-clamping apparatus comprising:
- a first swingable arm connected to a tail stock in its one end;
- a second swingable arm connected to the other end of said first swingable arm in its one end and connected to a movable plate in the other end thereof;
- and a third swingable arm connected to said first swingable arm in its one end and connected to a cross-head in the other end thereof;
- wherein:
- a longitudinal direction of said third swingable arm obliques from a line perpendicular to a moving direciton of said movable plate at a predetermined angle in a range of from 10.degree. to 20.degree. in a direction away from said movable plate at a position where said movable plate has moved to its furthest extent;
- said arms are swingably connected with each other through said toggle pins which are inserted into insertion-holes formed in cylinder elements which form toggle bushings in cooperation with a plurality of pellets embedded in peripheral surfaces of said cylinder elements at intervals of a predetermined distance so that said pellets are exposed to an inner peripheral surface of each of said cylinder elements;
- said toggle bushing is fixed to toggle-pin inserting portions of said arms;
- said toggle pin is inserted into an insertion-hole of said toggle bushing;
- and a lubricant film is applied to sliding surfaces of said toggle pin and said toggle bushing, said lubricant film is constructed of a grease mixed with fine particles of a solid lubicant.
Dependencies are inferred from the claim text.