JPS6143902Y2 - - Google Patents

Description

[Detailed description of the invention] This invention relates to a shaft for a movable object such as a folding door or a door.

A folding door has at least two door components, the door components are foldably connected using a hinge, etc., and one end of the door component group connected in this way is fixed. It is pivoted to the vertical frame or the upper and lower horizontal frames using pins, and the pins protruding from the upper and lower edges of each door component are fitted into the guide grooves of the upper and lower horizontal frames, so that each door component moves along the guide groove. It is. However, in order to attach the pin to the door component and to fit the pin into the guide groove, there has conventionally been a drawback that very complicated assembly work is required. That is,
Taking the lower pin shown in Fig. 1 as an example, the explanation is as follows.
Upper and lower opposing walls 2a of cross-section crosspiece 2 of door component 1,
The synthetic resin bearings 4, 4 are fitted into the square holes 3, 3 formed in the crosspiece 2a, and then the opposite walls 2a, 2a of the crosspiece 2 are fitted.
After placing the spring spring 5 in between so that its axis coincides with the axis of the square holes 3, 3, the pin 6 is inserted into the bearing 4,
The spring 5 and the bearing 4 are fitted so as to pass through them, and then the clip 8 serving as a spring seat is fitted into the annular groove 7 of the pin 6. After fitting the flanged cap 9 to the lower end of the pin 6, the spring 5 is fitted. While keeping the pin 6 pressed upward against the elastic force of
The disadvantage was that the assembly work was very difficult, as the assembly had to be done by fitting the parts into the first part.

This invention was made to eliminate the above-mentioned drawbacks, and it not only makes it extremely easy to attach pins to the crosspieces of door components, but also eliminates the work of inserting pins into the guide grooves of the fixed horizontal frame. The purpose is to provide a shaft tool that can be easily used.

This invention will be explained below based on embodiments shown in the drawings. Note that the same members as those shown in FIG. 1 are designated by the same reference numerals.

The casing 22 of the shaft fitting 21 has the square hole 3 of the crosspiece 2,
3, and a pair of fixed side walls 2 are provided on a pair of opposite side edges of the bottom wall 23.
4 and 24 are connected to each other, and tongue-shaped elastic walls 25 and 25 are connected to the other pair of opposing side edges, and the elastic walls 2
5 and 25 gradually expand outward with the bottom wall 23 as a fulcrum, and engagement recesses 26 and 26 that engage with the edges of the square holes 3 of the crosspiece 2 are formed at their upper ends. There is. A top wall 27 is provided at the upper end of the fixed side walls 24, 24.
A pin 6 is fitted into the through holes 28 and 29 formed in the top wall 27 and the bottom wall 23 so as to be movable up and down, and an annular groove 30 formed in the pin 6 is fitted.
A clip 31 serving as a spring seat is fitted and housed in the casing 22, and the spring spring 32, which is fitted onto the pin 6, has one end in contact with the clip 31 and the other end in contact with the top wall 27. 6 is biased downward.

Note that another annular groove 33 is carved above the annular groove 30 of the pin 6. On the other hand, the top wall 27 is wound upward 27a, and its tip 27b
is always pressing the pin 6, so that the upper part of the pin 6 keeps the left end 27c of the through hole 28 pressed to the right in FIG. Therefore, when the pin fixing means pushes up the pin 6 against the resilient spring 32, the left end 27c of the top wall 27 fits into the annular groove 33, and the pin 6 automatically moves upward as shown in FIG. is set.

Insert the casing 22 of the shaft 21, which consists of fixed side walls 24, 24 and tongue-shaped elastic walls 25, 25, into the square holes 3, 3 of No. 2 from the inside of the door (from above in FIG. 2).
When inserted, the upper ends of the tongue-like elastic walls 25, 25 tend to expand laterally, so that the engaging recesses 26, 26 are fitted into the square holes 3, 3.

The shaft fitting of the present invention, which is fitted and attached to the crosspiece of the movable body in this way, is attached to the winding portion 27a of the top wall 27 after the attachment.
When pressed, the annular groove 33 and the left end 27c are disengaged, and the pin 6 is pushed down by the force of the elastic spring 32 as shown in FIGS. 3 and 2, and the cap 9
is slidably fitted into the guide groove 11 of the fixed lower horizontal frame 10.

Since the shaft of the present invention is attached to a movable body that is opened and closed, such as a folding door, the cap 9 attached to the tip of the pin 6 needs to slide smoothly into the guide groove 11. However, it cannot be said that the fixed upper and lower horizontal frames of a folding door or the like are always kept parallel due to manufacturing reasons. Therefore, in order to allow the door to open and close smoothly, the elastic spring 3
2 is energized, so that the cap 9 can always slightly move up and down in the guide groove 11 to follow the guide.

In the above embodiment, the holes in the casing and the crosspiece are 4
Although I mentioned the case of a square hole, in the case of steel, the hole is relatively often square, but in the case of wood, the hole is often round, so the casing of the present invention has a round or polygonal shape. etc., can be selected arbitrarily.

In addition, as for the structure for fitting and attaching the casing to the hole, in the case of the above embodiment, the two sides of the square are used as tongue-shaped elastic walls and are fitted and attached to the engagement recess. It is also possible to separate the two sides of the door into tongue-like elastic walls; in this case, it is more stable to fix the door in the left and right directions. However, all four sides may be tongue-shaped elastic walls, and the design may be arbitrarily changed, such as by arranging the fitting part in the middle or making the wall uneven.

The shaft tool of the present invention uses hardened steel for all parts including the tongue-shaped elastic wall, so it can be repeatedly elastically fitted into the engagement recess. It's summery.

The shaft of the present invention with the above structure is used for movable objects such as folding doors or telescopic curtain doors, but since it is compactly preset inside the casing, the door can be assembled in advance in the factory. There is no need for it, and even if it is delivered in the form of parts, it can be assembled using a simple knock-down method. The door assembly work, which conventionally required extremely complicated labor and time, can be greatly shortened and streamlined by using the shaft of this invention, and the door can be opened and closed smoothly, safely and reliably. This is a useful and practical idea.

[Brief explanation of the drawing]

Fig. 1 is a longitudinal central cross-sectional view showing a conventional example of a shaft for a movable object such as a folding door, and Fig. 2 shows an embodiment of the shaft of the present invention after it is set in the door. FIG. 3 is a longitudinal center cross-sectional view showing an embodiment of the present invention in which the pin is temporarily fixed by the pin fixing means before the movable shaft of the folding door or the like is set on the door. FIG. 4 is an exploded perspective view of FIGS. 2 and 3. In the diagram: 2..., 6...pin, 22...casing,
27c... Left end of the top wall that fits into the annular groove of the pin fixing means, 28, 29... Hole, 32... Resilient body, 33... Annular groove of the pin fixing means.

Claims (1)

[Scope of utility model registration request] A casing configured to be fitted and attached to a pair of upper and lower holes drilled in a crosspiece of a movable body such as a folding door, a pin slidably passed through the casing in the vertical direction, and a pin protruding from the casing. In the pivot for a movable body such as a folding door, the shaft tool for a movable body such as a folding door comprises an elastic body that urges the elastic body, and a pin fixing means that temporarily fixes a pin pushed in against the elastic force of the elastic body in that position. has a bottom wall that is aligned with and has the same shape as the hole of the crosspiece, and a pair of fixed side walls and at least a pair of tongue-shaped elastic walls are respectively extended upwardly on the bottom wall, and the elastic wall spread outward with the bottom wall as a fulcrum, and their upper end openings are formed with engagement grooves that engage with the edges of the holes in the crosspieces by utilizing the elasticity of the elastic walls. The elastic body is housed in the casing, and the pin fixing device is provided at the upper end of the pair of fixed side walls, and includes a spring piece that presses the pin in the lateral direction, and a spring piece that presses the pin in the lateral direction. A shaft for a movable body such as a folding door, characterized in that it comprises an annular groove that is provided and engages with the spring piece.