JPS59138685U - Tread interlocking devices for vault doors, etc. - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of the drawing]

FIG. 1 is a plan view of an example of the support base frame in the device of the present invention;
Figure 2 is the same (a plan view showing the back side of the treadle, Figure 3 is an enlarged side sectional view of the device of the present invention, Figure 4 is a perspective view of the support base frame, and Figure 5 is a partially cut away perspective view of the treadle). It is a diagram. 1... Board, 2... Rotating operation board, 2a... Shaft, 2
b...Cam, 3...Transverse rod, 3a...Long hole, 3b
... Support bolt, 3C... Operating protrusion, 4... Direction conversion link, "5... Front and rear operating rod, 6... Support piece member, 61... Inclined surface, 7... Guide Stand, 71... Guide groove, 8... Support pin, 9... Step board, 10... Connecting plate, 11... Roller bearing, 12... Pillow member.

Claims (1)

[Scope of utility model registration request] On the top surface of the board, which is horizontally rectangular in plan and has a box-like shape with a shallow bottom, is a rotary operating board that has a cam that is connected to the opening/closing shaft of a door such as a vault and rotates. a transverse rod that slides only in one direction; an abbreviated direction conversion link having a distal end movably pivoted on both sides in the longitudinal direction of the transverse rod, and a bending portion fixedly pivoted to the base plate; and the link. Two front and rear operating rods on the left and right, the rear end side of which is pivotally attached to the rear end side so as to be freely movable, and a support piece member having a forwardly facing sloped surface on the upper surface of the tip side, and which is provided so as to be able to slide only back and forth. and a guide stand having a quarter-circular guide groove formed on the side surface of the bridge member of the longitudinally operating rod, and two left and right support pins erected on the front side of the transverse rod. A support base frame for the step board is formed, and the support base frame is buried in the floor surface so as to be close to the front side of the doorstop and approximately flush with the floor surface, and has a shape that is approximately the same as the planar shape of the board. On the back side of the footboard, a connecting plate having a long hole in the front and back direction is provided on the front side to be loosely inserted into the support pin, and a guided plate is provided on the opposite side to be guided by loosely fitting into the grooves of the two guide bases. A member is curved to face the groove, and an inverted wedge-shaped supported piece member supported by the two supporting piece members is attached to a portion corresponding to the two supporting piece members, so that the tread plate is bent. The step board is mounted on a support base frame with the elongated hole of the connecting plate being associated with the support pin in the support board, the supported piece member with the support piece member, and the guided member with the guide groove, and The back and forth movement of the piece member of the front-rear operating lever during opening and closing causes the supported piece member of the treadle to move upward, and this upward movement is converted into an arcuate movement by the guided member guided by the guide groove, and the forward movement of the treadle is A tread interlocking device for a vault door, etc., characterized in that it moves back and forth while raising and lowering.