85results about "Shackles" patented technology

A chain (11) includes pairs of inner link plates (14) and pairs of outer link plates (15) alternately arranged in a series-arrangement direction. Each of the pairs of the inner link plates (14) includes a first connection pin (17a) and a second connection pin (17b). At least one of the two outer link plates (15) in each of the pairs includes a first engagement groove (21) and a second engagement groove (22). When the chain (11) extends in a straight line, the outer link plate (15) including the first engagement groove (21) and the second engagement groove (22) is configured such that the second engagement groove (22) engages with the first connection pin (17a) of the inner link plate (14) located immediately rearward in the series-arrangement direction and the first engagement groove (21) engages with the second connection pin (17b) of the inner link plate (14) located immediately forward in the series-arrangement direction.

An attachment device includes a first hook and a second hook, the first and second hook biased towards each other and interconnected with each other, such the first and second hook have a first position, where a first curved end of the first hook does not touch a second curved end of the second hook and a second position, where the first curved end of the first hook does touch the second curved end of the second hook, wherein the first and second hook pivot between the first and second position. The attachment device further includes a housing, the housing interconnecting the first and second hook and providing a mechanism for a biasing force, the biasing force biasing the first and second hook towards each other. The attachment device further includes a first spring located in the housing, the first spring providing the biasing force. The attachment device further includes a center wall, the center wall located in the housing, the first spring pressing against the housing and the first hook in order to bias the first hook and the second hook.

To provide a joint which has a good appearance while inhibiting deterioration of strength.SOLUTION: A joint 1 includes: an annular joint main part 10 having an opening 11; and a closing member 20. The joint main part 10 includes: an attachment part 13 provided at a portion opposite to the opening 11; and connection recessed parts 14 including two end faces 12 with the opening 11 therebetween, first recessed parts 14a recessed from the respective end faces 12, and second recessed parts 14b recessed from the respective first recessed parts 14a. The closing member 20 includes: a rod-like closing part 21 inserted into the opening 11; connection protruding parts 22 having first protruding parts 22a respectively protruding from respective ends of the closing part 21, and second protruding parts 22b protruding from the respective first protruding parts 22a; a beam part 23 extending from the closing part 21 and attached to the attachment part 13 at its tip; and reinforcement pieces 24 each connecting the first protruding part 22 with the beam part 23.SELECTED DRAWING: Figure 1

The chain connector of the improved structure comprises a fixing rod, a clamping groove is formed in the surface of the fixing rod, a clamping block is inserted into the clamping groove, the other end of the clamping block is inserted into a sliding groove, the sliding groove is formed in the inner wall of an inserting groove, a spring is fixedly connected to the bottom of the clamping block, and the other end of the spring is fixedly connected with the inner wall of the sliding groove. A shifting block is welded to the outer portion of the clamping block and inserted into a strip-shaped hole, and the strip-shaped hole is formed in the surface of the fixing plate. According to the chain connector of the improved structure, the clamping groove is formed in the surface of the fixing rod, the clamping block is inserted into the clamping groove, the other end of the clamping block is inserted into the sliding groove, the sliding groove is formed in the inner wall of the inserting groove, then the spring is fixedly connected to the bottom of the clamping block, the other end of the spring is fixedly connected to the inner wall of the sliding groove, and the shifting block is welded to the outer portion of the clamping block; the shifting block is inserted into the strip-shaped hole, so that the chain connector structure can be disassembled, the chain connector is easy and convenient to disassemble and assemble, and time and labor are saved when maintenance personnel operate the chain connector structure.

The invention relates to a sash bracket (1) for connecting a push element (S) of a window opener to a window sash, comprising: a window connection section (100) for connecting the sash bracket (1) to the window sash; a push element connection section (200) for releasably connecting the sash bracket (1) to the push element (S); and a releasable locking pin (300) with a pin section (310) for releasably connecting the push element connection section (200) to the push element (S). The push element connection section (200) comprises: a pin receiving passage (210) for inserting the pin section (310); and a push element recess (220) for arranging the push element (S) in a push element mounting position (SMP).The pin receiving passage (210) extends through the thrust element recess (220), so that the pin section (310) can be inserted through a thrust element passage (SP) extending through the thrust element (S) to releasably connect the thrust element connection section (200) to the thrust element (S). The locking pin (300) comprises a locking section (320) that can be rotated to releasably lock the locking pin (300) into a locking position (AP). Moving the locking section into the locking position locks the locking pin, preventing it from being pulled out of the pin receiving passage or moving along the pin receiving passage.