JPH072929Y2 - Flag hinges - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to an improved flag hinge used for mounting a door on a door frame or the like in a freely openable and closable manner.

(Prior Art) A flag hinge used to attach a door to a door frame or the like in a freely openable / closable manner is an upper / lower pipe portion 21 formed by bending one side end portion into a tubular shape as shown in FIG. Upper and lower blades 23 and 24 provided with and 22 are rotatably held by inserting a shaft core 25 into the upper and lower tube portions 21 and 22. 26 is a ring sandwiched between the upper and lower pipe parts 21 and 22 and a ring made of synthetic resin, and 27 is a gutter that shields the opening of the upper and lower pipe parts 21 and 22.
8 is a screw hole used to fix the upper and lower blades 23, 24 to a target object, and 29 is a flag hinge.

This flag hinge 29 is used by fixing the upper blade plate 23 to the door and the lower blade plate 24 to the door frame with screws through screw holes 28, respectively.

(Problems to be solved by the invention) Generally, in order to attach the door to the door frame with the flag hinge 29, the lower blade plate 24
The upper blade plate 23 is removed from the shaft core 25 fixed to the upper blade plate 23, and the upper blade plate 23 is fixed to a predetermined position of the door with a screw hole 28, and the lower blade plate 24 is fixed to the predetermined position of the door frame. Screw holes 28
After fixing by fixing with a screw via, the pipe part 21 of the upper blade plate 23 is fitted to the shaft core 25 fixed to the lower blade plate 24 by lifting the door.

In this case, to separate the upper blade plate 23 from the lower blade plate 24,
A ring 26 fitted on a shaft core 25 between the upper and lower pipe portions 21, 22.
However, they often fall off at the attachment work site and are lost, which hinders the work.

(Means for Solving the Problem) The present invention has been made in view of such a conventional problem, and locks a ring in a rotatable state by an axial center as necessary. It is intended to solve the above problems.

According to the present invention, a protrusion having a protrusion surrounded by a peripheral wall near the center in the longitudinal direction of an axial core fixed by inserting the upper and lower pipes into the lower pipe, and the both pipes. The ring clamped to each of the rings is provided with an enlarged diameter portion in which a notch portion capable of fitting the protruding portion is formed on a peripheral wall of the shaft hole, and the protruding portion is fitted into the enlarged diameter portion to form the ring. It is a flag hinge characterized in that it is locked by the shaft core in a rotatable state as required.

(Operation) Even if the upper blade is removed from the lower blade, this flag hinge
Since the ring is locked by the protrusion of the shaft via the expanded diameter part, the ring does not drop from the shaft and will not be lost.
No trouble will occur in the work.

Further, the flag hinge can be locked by the shaft core in a state where the ring can be rotated if necessary, so that uneven wear or the like that occurs when sliding on the sliding surface of the upper tube portion and the ring is not smooth is prevented. be able to.

(Embodiment) The present invention will be described in detail below based on an embodiment shown in FIGS. Slide the upper and lower blades 3 and 4 with the upper and lower pipes 1 and 2 formed by bending one side end into a tubular shape between the upper and lower pipes 1 and 2, respectively. This is a flag hinge 7 in which a ring 5 made of a good synthetic resin is held, and a shaft core 6 is inserted into the upper and lower pipe portions 1 and 2 and the ring 5 to be rotatably held.

In addition, the shaft core 6 is provided with a projecting portion 9 which is surrounded by a peripheral wall near the center in the length direction thereof and which has a right-angled triangular projecting portion 8 whose upper side in section is suspended from the shaft core 6, and In ring 5,
A mortar-shaped notch 11 into which the projection 8 can be fitted on the peripheral wall of the shaft hole 10.
The expanded diameter portion 12 formed with is formed, the protrusion portion 9 is fitted to the expanded diameter portion 12, and an appropriate portion fitted into the lower pipe portion 2 of the shaft core 6 is fixed to the lower pipe portion 2. The ring 5 is locked.

13 is a cutout that shields the open ends of the upper and lower pipe sections 1 and 2, and 14
Is a screw hole used to fix the upper and lower blades 3 and 4 to a target object.

This flag hinge 7 is used in the same manner as the conventional flag hinge 29. That is, the upper blade plate 3 is separated from the lower blade plate 4, the upper blade plate 3 is attached to a predetermined position of the door with a screw through a screw hole 14, and the lower blade plate 4 is screwed to a predetermined position of the door frame. After attaching with a screw through the hole 14, the door is lifted and the upper pipe portion 1 of the upper blade plate 3 is externally fitted to the shaft core 6 fixed to the lower blade plate 4, and the door is attached to the door frame. .

In this case, since the flag hinge 7 locks the ring 5 through the enlarged diameter portion 12 by the protrusion 9 of the shaft core 6 even if the upper blade plate 3 is separated from the lower blade plate 4, the ring 5 is It will not fall off the shaft core 6 and will not be lost, so that there will be no trouble in work.

Further, the flag hinge 7 can be locked by the shaft core 6 in a state where the ring 5 can be rotated if necessary, so that the deviation caused when the sliding movement between the upper pipe portion 1 and the ring 5 is not smooth. It is possible to prevent wear and the like.

In the above-described embodiment, the shaft core 6 is provided with a projection 9 having a right-angled triangular projection 8 in cross section, and the ring 5 is provided with a shaft hole.
A diameter-increasing portion 12 having a mortar-shaped notch 11 was provided on the peripheral wall of 10. The projection 8 and the notch 11 were surrounded by the peripheral wall of the shaft core 6 as shown in FIG. In the cross-section, the upper side is hung on the shaft core 6 and the protrusion 8'is a right-angled triangle whose height is less than half the thickness of the ring 5, and, as shown in FIG. 5, on the peripheral wall of the shaft hole 10 of the ring 5, The protrusion 8'may be provided with a mortar-shaped notch 11 'having a depth less than half of the thickness capable of being fitted, or, as shown in FIG. 6, a cross section surrounding the peripheral wall of the shaft core 6. It is also possible to provide a rectangular flange-shaped projection 15 and a step 16 on which the projection 15 can be fitted, on the upper part of the peripheral wall of the shaft hole 10 of the ring 5, as shown in FIG.

Although synthetic resin such as nylon is used for the ring 5, a suitable metal may be used instead of this.

(Effects of the Invention) Since the present invention has the above-described configuration, the following effects are obtained.

(1) Since the ring is not lost during the work of attaching the flag hinge, the work is not hindered and the work efficiency is improved.

(2) Since the ring can be rotatably locked, uneven wear that occurs when the ring is fixedly locked is prevented, and the useful life of the flag hinge is maintained.

(3) Since it is a simple machining work, it does not raise the cost so much and can be sold at the same price as before, which contributes to increased sales as its performance improves.

[Brief description of drawings]

1 to 3 show an embodiment of the present invention.
The figure is a front view, FIG. 2 is a partially cut-out shaft core, (a) is a plan view, (b) is an AA cross-sectional view, and FIG. 3 is a ring.
(A) is a plan view, (B) is a sectional view taken along line BB, FIGS. 4 and 5, and FIGS. 6 and 7 are other embodiments of the shaft core and the ring, and FIG. Partial notched shaft core, (a) is a plan view, (b) is a C-C sectional view, and FIG. 5 is a ring, (a)
Is a plan view, (b) is a DD cross-sectional view, FIG. 6 is a partially cut-away shaft core, (a) is a plan view, (b) is an EE cross-sectional view, and FIG. 7 is a ring. 8A is a plan view, FIG. 8B is a sectional view taken along line FF, and FIG. 8 is a front view of a conventional example. DESCRIPTION OF SYMBOLS 1 ... Upper pipe part, 2 ... Lower pipe part 3 ... Upper blade plate, 4 ... Lower blade plate 5 ... Ring, 6 ... Shaft core 7 ... Flag hinge, 8,8 ', 15 ... Protrusion part 9 ... Protrusion part, 10 … Shaft hole 11, 11 ′, 16… Notch 12… Expanded part

Claims (4)

[Scope of utility model registration request] 1. A projection in which a projection surrounded by a peripheral wall near the center in the lengthwise direction is formed on a shaft core fixed to the lower pipe by inserting and inserting the upper and lower pipes, and both pipes. The ring clamped to the portion is provided with a diameter-expanded portion in which a notch capable of fitting the protrusion is formed on a peripheral wall of the shaft hole, and the protrusion is fitted to the diameter-increased portion to form the ring. A flag hinge characterized in that it is locked by the shaft core in a rotatable state as required. 2. A projection part, which is surrounded by a peripheral wall of a shaft core, has a right-angled triangular projection whose upper side in section is vertically hung on the shaft core, and a projection part formed on the peripheral wall of the shaft hole of the ring. A flag hinge according to claim 1, characterized in that it has a diameter-increasing portion formed with a mortar-shaped notch that can be fitted. 3. A projection part, which is surrounded by a peripheral wall of a shaft core, has a right-angled triangular projection whose upper side is vertically suspended in a cross section and whose height is less than half the thickness of the ring, and a shaft of the ring. On the hole wall,
A utility model registration flag according to claim 1, characterized in that the projecting portion is provided with a diameter-increasing portion formed with a mortar-shaped notch having a depth not more than half the thickness that can be fitted. hinge. 4. A protrusion having a flange-shaped protrusion having a rectangular cross section, which is surrounded by a peripheral wall of the shaft core, and a step having a rectangular cross section, which can be fitted to the upper portion of the peripheral wall of the shaft hole of the ring. A flag hinge according to claim 1, characterized in that it has an enlarged diameter portion formed with a portion.