JPH0247732Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] This invention forms the frame body and shoji frame from extruded aluminum alloy or synthetic resin, and allows the shoji to be made without using pivoting members such as hinges. , which is applied to projecting windows or skylights that can be rotatably fitted by simply being combined with each other, and relates to a pivot structure between a fixed member serving as a frame and a movable member such as a shoji.

[Conventional technology]

In this type of structure, a shaft is provided on the movable member and a bearing is formed on the fixed member, or the shaft and bearing are sometimes provided in reverse, but when assembled, the shaft is inserted into the bearing from the side, The problem was that the movable parts could not be easily removed. Therefore, a structure that allows easy attachment and detachment is disclosed, for example, in Japanese Patent Publication No. 53-45616. The invention of the publication is specifically provided at the lower end of the frame and the shoji to create a window that can be folded inward or outward. By folding the movable member, the large circular part is removed from the inside of the large receiving part, and the movable member can be easily pulled out. However, with this structure, the state in which the movable member is folded down is shown in Figure 10 of the attached drawings, but with this structure alone, the movable member can be pushed down even deeper, and in that case, the male shaft will be lower than the female shaft. It lifts up and makes the pivot condition unstable.

[Problem that the invention attempts to solve]

This device prevents further rotation when the movable member is rotated to a predetermined angle, so that the pivot form can always be maintained in a stable state, and the movable member can be easily assembled and removed from the fixed member. An object of the present invention is to provide a pivot structure such as a projecting window that is easy to support.

[Means to solve the problem]

The means according to this invention provides an engagement groove in the fixing member that is long in the lateral direction and has one end open in the longitudinal direction,
A hook protruding from the movable member is fitted into the engagement groove so as to be able to be fitted in and out and rotated freely, and a small arcuate portion that protrudes upward from the bottom surface of the inner part and curves convexly near the opening at the bottom of the engagement groove. and a raised portion having a stopper portion rising diagonally upward from the small arc portion toward the open mouth side, and a large circular arc portion hanging in a convexly curved state from the upper end of the stopper portion toward the open mouth side, and the hook has a raised portion. The hook is curved with a curvature that is approximately equal to the curvature of the large arc of the hook, and the tip of the hook is provided with a regulating piece that bends toward the base of the hook, and the upper surface of the hook fitted in the engagement groove and the open opening are provided. The gap between the upper edges of the opening is larger than the height of the stopper part.

〔Example〕

As shown in FIG. 1, the protrusion 2 of the fixing member 1 is provided with an engagement groove 3 that is long in the protrusion direction and whose base end is open, and the ceiling surface 4 of the engagement groove 3 is moved upward and deeper than the opening 5. The inner bottom surface 6 of the bottom is formed into a convex arcuate surface.
is made horizontal, and a raised part 7 is formed on the side of the open opening 5 at the bottom.
A stopper part 9 that slopes diagonally upward in a straight line toward the opening 5 from a high position, and a large circular arc part 10 that hangs in a convex curve from the upper end of the stopper part 9 toward the opening 5. It is.

On the other hand, a hook 12 is provided protrudingly from the upper end of the movable member 11, and the hook 12 is approximately a half-shaped convex curve having a curvature approximately equal to the curvature of the large arc portion 10 of the raised portion 7, as shown in FIG. A regulating piece 13 is curved in a circular shape and is fitted into the engagement groove 3 from its opening 5, and is bent toward the base of the hook 12 at the tip of the hook 12 and is substantially parallel to the bottom surface of the engagement groove 3. , and several protrusions 14 are provided on the upper surface of the hook 12.

Then, move the movable member 11 in the direction of the arrow shown in FIG.
When the hook 12 is rotated, the regulating piece 13 of the hook 12 slides along the small arc portion 8 of the raised part 7, and as shown in FIG. rotation is prevented.
By the way, since this invention is constructed so that the hook 12 can escape from the engagement groove 3, the position of the protruding piece 14 protruding into the hook 12 is rotated as shown in FIG. It is designed to allow for a more complete escape.

Furthermore, when the hook 12 is to be released, the movable member 11 is pulled up from the state shown in FIG.
It can be removed by pulling it out further, and at this time, the distance a between the upper surface of the hook 12 and the upper edge of the opening 5 is wider than the height b of the stopper part 9.

When fitting the hook 12 into the engagement groove 3, the movable member 11 is placed horizontally and the tip of the regulating piece 13 is inserted along the large arc portion 10, and the stopper portion 9
When it reaches the upper end, the tip of the regulating piece 13 falls down along the inclined surface of the stopper part 9, and is fitted as shown in FIG. 2, and by rotating the movable member 11 so as to stand upright, It fits perfectly.

FIG. 3 shows the above-mentioned pivot structure according to this invention applied to a projecting window of a greenhouse. The fixing member 1 serves as the upper frame of the frame, and the engagement groove 3 is formed on the outside of the frame, and the engagement groove 3 is formed on the inside of the frame. The movable member 11 is formed in an open manner.
This is a shoji, and has a hook 12 protruding from the upper stile of the shoji, and the hook 12 is fitted into the engagement groove 3.

[Effect of idea]

The pivot structure for a projecting window or the like according to this invention is provided with a raised part including a small circular arc part, an inclined stopper part, and a large circular arc part on the bottom opening side of the engagement groove provided in the fixing member. A hook protruding from the movable member is fitted into the engagement groove, and the hook is curved with a curvature approximately equal to the curvature of the large arc portion, and a regulating piece is provided at the tip thereof bent toward the base of the hook, In addition, the distance between the upper surface of the hook fitted in the engagement groove and the upper edge of the open mouth is made larger than the height of the stopper part, so that when the movable member is rotated, the regulating piece comes into contact with the stopper part. Further rotation is prevented and the blocked state is reliably maintained. In addition, since the distance between the upper surface of the hook fitted in the engagement groove and the upper edge of the open opening is larger than the height of the stopper, it is easier to move the regulating piece to the stopper when the regulating piece is in contact with the stopper. The movable member can be easily pulled out from the engagement groove by pulling up the movable member so as to cross over the movable member.

[Brief explanation of drawings]

Figure 1 is a sectional view showing the pivot structure of this invention, such as a projecting window, in a closed state, Figure 2 is a sectional view showing the same in an open state, and Figure 3 is a diagram showing the pivot structure adapted to a projecting window. FIG. DESCRIPTION OF SYMBOLS 1... Fixed member, 3... Engagement groove, 5... Opening opening, 6... Bottom surface, 7... Protrusion part, 8... Small circular arc part, 9... Stopper part, 10... Large circular arc part, 1
DESCRIPTION OF SYMBOLS 1...Movable member, 12...Hook, 13...Restriction piece, 14...Protrusion piece.

Claims (1)

[Scope of utility model registration request] The fixed member 1 is provided with an engaging groove 3 that is long in the lateral direction and has one end open in the longitudinal direction, and a hook 12 that protrudes from the movable member 11 is fitted into the engaging groove 3 so as to be able to fit in and out and rotate freely. At the bottom of the engagement groove 3, near the opening, there is a small circular arc part 8 that protrudes from the bottom surface 6 at the back and is convexly curved, a stopper part 9 that rises obliquely upward from the small circular arc part 8 toward the opening, and a stopper part. The hook 11 is curved with a curvature substantially equal to the curvature of the large arc portion 10 of the raised portion 7. A regulating piece 1 is formed at the tip of the hook 11 and is bent toward the base of the hook.
3, and the distance a between the upper surface of the hook fitted in the engagement groove 3 and the upper edge of the opening is larger than the height b of the stopper part 9. Support structure.