JPS62200836U - - Google Patents

Description

[Brief explanation of the drawing]

Figures 1 to 8 show an embodiment of the frame-shaped link of the present invention, in which Figure 1 is an elevation view, Figure 2 is a side view,
Fig. 3 is a plan view of the link body, Fig. 4 is a partial left side view of Fig. 1, Fig. 5 is a sectional view taken along line A-A in Fig. 3, and Fig. 6 is a line BB in Fig. 5. 7 is a back view of the opening/closing stay part, FIG. 8 is an elevational view, FIG. 9 is a longitudinal sectional view showing the connected state of the frame link, and FIG. 10 is an elevational view of the entire structure. 11 and 12 are perspective views of the link body and the opening/closing stay portion of other embodiments of the frame-shaped link shown in FIGS. 11 and 12, respectively. 1...Frame-shaped link, 2...Support stay part, 3a
, 3b...Offset type link part, 4, 4A...
Link body, 5, 5A...Opening/closing stay part, 5a...
...Lower surface of the opening/closing stay, 6a...Outer link part on one side, 6b...Outer link part on the other side, 7...Flexible tongue piece, 8...Connecting hole, 9...Protruding pin part, 10... ... Convex cylindrical surface, 11 ... Concave cylindrical surface, 12 ... Concavity,
13, 14, 34, 35...Side surface of recess and flexible tongue piece, 15...Protrusion, 16...Side groove, 17...
Top surface, 18... Side wall, 23... Recess, 24, 24
A... Protrusion, 25... Engaging piece, 27, 27A...
Tip hook, 29... hole.

Claims (1)

[Scope of utility model registration request] One side of the outer link part of the opposing offset-type link part is fixed to both sides of the support stay part, and the frame-shaped link formed by attaching the opening/closing stay part to the other side is connected in a bendable manner to each other in the offset-type link part. The front part of the outer link part, the support stay part, and the opening/closing stay part in the closed position is formed into a convex cylindrical surface centered on the connecting hole provided in the outer link part, and the connecting hole is formed inside the outer link part. A recess is provided which is deformed and opens to the front, and the inner link part of the offset link part forms a flexible tongue piece that slides into the recess, and a protruding pin part that fits into the connecting hole on the outside of the rear part. The rear part of the outer link part, the supporting stay part, and the opening/closing stay part in the closed position is formed into a concave cylindrical surface with a slightly larger diameter than the convex cylindrical surface centered on the protruding pin part, and the protruding pin part is in the connecting hole. between the position where the frame ring forms a straight line due to the contact between the sides of the recess and the flexible tongue and the predetermined angular position where the adjacent front and rear opening/closing stays maintain overlap when inserted. The opening/closing stay part can be bent to
A protrusion that fits into a side groove provided on one side of the outer link, a side wall that contacts the upper surface of the other side of the outer link that is lower than the one side of the outer link, and a side wall that extends from the bottom of the side wall in a direction across the link body. The tip hook has an engaging piece that elastically locks into the hole of the outer link portion on the one side, and a guide portion is provided on the upper surface to be in contact with the inner surface of the opening/closing stay portion in the closed position and the inner surface of the side wall. A closed type cable drag chain that can be opened and closed, in which a guide part and an inner surface of a side wall are respectively provided with a protrusion and a recess that fit in a direction transverse to the link body.