JPS6227650Y2 - - Google Patents

Description

[Detailed description of the invention] This invention relates to a sliding pivot for an arm pin with a head attached to the end of the arm, which works with the arm to define the opening (inward) angle of an inward-folding window. .

This type of arm pin slide pivot fitting is attached to an appropriate part of the window (or window frame) opposite the window frame (or window) to which one end of the arm is pivoted, and the head of the other end of the arm It is equipped with a pivot groove suitable for slidably pivoting an arm pin with a hinge, and this pivot groove is provided at or near the end of the pivot groove.
Includes a wide pin head insertion section.

This well-known arm pin slide pivot fitting attaches the arm pin to the pivot groove by inserting the head of the arm pin into the pivot groove from the pin head insertion part. Sometimes, when the slides along the pivot groove,
Due to lateral displacement of the window, a force may be applied between the arm pin attachment end of the arm and the slide pivot fitting in a direction that separates them. There was a problem of instability in the connection, in which the arm and the arm pivot fitting could become disconnected from each other due to the detachment from the pivot groove.

The arm pin slide pivot device according to this invention was devised for the purpose of solving such problems, and as illustrated in the drawing, it is suitable for slidably pivoting the arm pin 31 with the head 31a. The pivot main body 11 is provided with a pivot groove 13 and includes a wide pin head insertion portion 13a at or near the end of the pivot groove 13, and the pin head insertion portion 13a of the pivot groove 13 is provided at the end thereof. Substantially equivalent wide part 2
3a and has a longer length than the pivot groove 13 and a width substantially equivalent to the pivot groove 13.
While aligning the axis of 3 with the axis of the pivot groove 13,
In the axial direction of the pivot groove 13, the long groove 23 covers the entire pivot groove with a wide part 23a and a pin head insertion part 13a.
between a first position (see Fig. 1) where the long grooves 23 communicate with each other in a corresponding state and a second position (see Fig. 2) where the portion of the long groove 23 excluding the wide part 23a communicates with the entire pivot groove. It consists of a slidable, stacked structure.

The arm pin sliding pivot mounting device of this invention having such a configuration is used in such a manner that, with the pin lock piece 21 occupying the first position (Figure 1), the head 31a of the arm pin 31 is inserted through the overlapping pin head insertion portion 13a and wide portion 23a, and the arm pin 31 as a whole is attached to a groove corresponding to the pivot mounting groove 13, and then the pin lock piece 21 is slid so that it occupies the second position (Figure 2), thereby sliding and pivoting the arm pin 31.

However, when the pin lock piece 21 of the lever is in the second position, as shown in FIG.
The slide pivot portion of the arm pin 31 is located in the pivot groove 13.
A portion of the long groove 23 adjacent to the wide portion 23a extends into the pin head insertion portion 13a of the pin head insertion portion 13a, making the pin head insertion portion 13a narrower as a whole.
(In other words, the groove corresponds to the long groove that does not include the wide part), so even if a force is applied in the direction of separating the arm 33 and this sliding pivot when opening and closing the inward-folding window. , it is impossible for the arm pin 31 to separate from the slide pivot.

In the arm pin slide pivot device according to this invention, in order to always maintain the slide pivot connection of the arm pin 31 in a stable form, the pivot device main body 11
and/or releasably locking (holding) pin lock piece 21 in the second position.
It is desirable to provide a locking means for Generally, this locking means is a notch hole 15a in a portion where the protrusion 25 on the pin lock piece 21 and the protrusion of the pivot fitting main body 11 face each other as shown in the figure, or, although not shown, a protrusion on the pivot fitting main body 11 and the pin lock piece 21. Like the small hole in the opposite part of the protrusion,
In addition to being composed of a sleeve and a tab provided on the pivot main body 11 and the pin lock piece 21 that can fit into each other, it is also possible to provide one of the pivot main body 11 and the pin lock piece 21 so that it can be pressed into contact with the other. Tsubu (protrusion)
It can be composed of

Further, this arm pin slide pivot fixture may be provided with means for releasably locking the pin lock piece 21 in the first position, if necessary. In the illustrated example, this means is constituted by a projection 25 on the pin lock piece 21 described above and a small hole 15b provided in a portion of the pivot fitting main body 11 facing the projection.

In the illustrated arm pin slide pivot, a protrusion 27 that can come into contact with the pivot attachment mounting surface is provided in the middle of the pin lock piece 21 in the length direction.
This is because, if such a protrusion 27 is not provided in the configuration shown in the figure, the arm pin 31 is inserted into the overlapping pin head insertion portion 13a and wide portion 23a.
When inserting the head 31a of the arm pin 31 into
This is because there is a possibility that the arm pin 31 may come into contact with the pin lock piece 21 and separate it from the pivot main body 11, resulting in the inconvenience that the arm pin 31 is attached only to the pivot main body 11.

[Brief explanation of the drawing]

The drawings show an embodiment of the arm pin slide pivot device according to this invention, and FIG. 1 is a perspective view of the arm having the arm pin when the pin lock piece is in the first position; FIG. 2 is a perspective view of the pin lock piece in the second position. 11... Pivot fitting body, 13... Pivot groove, 13a
... Pin head insertion part, 21 ... Pin lock piece,
23...Long groove, 23a...Wide part, 31...Arm pin, 31a...Head, 33...Arm.

Claims (1)

[Claims for Utility Model Registration] (1) Provided with a pivot groove suitable for slidably pivoting an arm pin with a head, and including a wide pin head insertion portion at or near the end of the pivot groove. A long groove that includes a wide part at the end that is substantially equivalent to the pin head insertion part of the pivot groove, and has a length longer than the pivot groove and a width that is substantially the same as the pivot groove. While aligning the axis of the long groove with the axis of the pivot groove, the wide part of the long groove and the pin head insertion part correspond to the entire pivot groove in the axial direction of the pivot groove. A slide pivot of an arm pin in an inward-folding window which is attached so as to be able to slide between a first position where the long groove communicates with the entire pivot groove and a second position where a portion of the long groove excluding the wide part communicates with the entire pivot groove. Kimono. (2) On the pivot fitting body and/or pinlock piece,
The arm pin slide pivot device according to claim 1, which is provided with locking means for releasably locking the pin lock piece in the second position.