JPH063089B2 - Hinges for closet doors - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hinge that not only keeps a door in a closed state, but also can reliably prevent the door from being opened more than a set opening angle.

2. Description of the Related Art As a conventional hinge of this kind, for example, Japanese Utility Model Publication 48-30
The one disclosed in Japanese Patent No. 524 is known. In this hinge, a winding portion formed on one side of two mounting pieces is pivotally attached by one shaft, and a ball is housed in a cylindrical portion formed by winding both end portions of one mounting piece. Press the ball axially with a spring, receive the root of the spring with a locking body that is screwed into the cylindrical part, and make a hole in the winding part of the other mounting piece at the appropriate position where the ball comes into contact. It is characterized by being installed.

DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention As in the prior art, a tubular portion is formed at each end of one mounting piece, and a ball accommodated in this tubular portion is axially pressed by a spring to attach the other portion. When it is inserted into the recessed hole formed in the winding portion of the piece to temporarily stop the swing between the two mounting pieces, it takes time and cost to process the mounting piece having the tubular portion. Not only that, the distance between the holes formed on both ends of the other mounting piece must be the same as the distance between the balls. Therefore, high dimensional accuracy is required for processing the holes.

In addition, a screw that engages with the locking piece must be engraved on each tubular portion of the one mounting piece.
Since the roundness of the cylindrical portion formed by winding is not always sufficient, a skilled person is required for processing. Moreover,
In order to ensure the locking of the ball and the hollow hole, if the hollow hole is provided through the winding part, place it below the hole of the shaft pivotally attached to the winding part. Since the groove must be formed, not only the thickness of the shaft is restricted, but also an extra labor and cost are required for processing.

Means for Solving the Problems The present invention has been made to solve the above problems, and includes a one-side hinge attachment piece having side end pivot parts on both sides in the length direction and a center portion in the length direction. The hinge attachment piece on the other side having a central pivoting portion and a cutting portion that divides the central pivoting portion into two in the middle, and the hinge attachment pieces on the one side and the other side, through the pivoting portion. And the pivot shaft that connects
An insertion shaft hole through which the pivot shaft is inserted, a reference surface portion that forms a circumferential surface concentric with the insertion shaft hole, a large-diameter portion having a diameter larger than the reference surface portion, and a portion that smoothly protrudes from the reference surface portion. 1 and a second locking projection, and the large diameter portion and the second
A cam member fitted to the other side hinge attachment piece by a notch step between the locking protrusions, and a position on the one side hinge attachment piece orthogonal to the pivot shaft at a position facing the cam member. And a pressing force generating portion having a notch hole in a direction parallel to the pivot shaft, and housed in the notch hole,
A plate-shaped nut having a thread groove on the inner peripheral surface, an adjusting screw screwed into the thread groove of the plate-shaped nut, and a ball member arranged in the pressing force generating portion so as to face the cam member. A hinge for a closet door, the hinge being housed between the ball member and the adjusting screw, wherein the spring member adjusts the pressing force of the ball member on the cam member by the rotation of the adjusting screw. The first locking protrusion has a rising portion that locks the ball member when the opening angle of the two hinge attachment pieces is approximately 180 degrees, a top portion that forms a convex surface, and the reference surface portion from the top portion. The second locking projection has a flat surface and a rising portion that locks the ball member when the opening angle of the two hinge attachment pieces is approximately 30 degrees. The top to form, And a falling portion which also serves as a notch step portion.

Effect Since the present invention includes the cam member having the above-mentioned characteristic shape, when an appropriate force is applied in a state where the closet door is closed (the opening angle of the hinge attachment piece is approximately 180 degrees),
The door will begin to open after a reasonable resistance. Then, once the door starts to open, the ball member slides on the reference surface of the cam member, so that the door opening operation is smoothly maintained and the closet door is almost opened (the opening angle of the hinge attachment piece is about 30 degrees). The door opening operation ends.

Embodiment In FIGS. 1 to 5, one hinge attachment piece 1 is
The side end pivot portions 2, 2 are formed by winding on both sides in the length direction. On the other hand, the other hinge mounting piece 3 has a position at which the one hinge mounting piece 1 has an opening angle of 180 degrees (hereinafter, the opening angle of the two hinge mounting pieces may be abbreviated as an angle). Stops 3a, 3a
Is formed by bending upward at both ends in the length direction, and a center pivot portion 4 fitted between the side end pivot portions 2, 2 is wound around an intermediate portion in the length direction. It is formed by times. The central pivoting portion 4 is provided with a cutting portion 5 in an intermediate portion so as to divide it into two. Each of the pivotally attached portions 2 and 4 is formed with triangular reinforcing ribs 6 and 7 extruded from the back surface side by pressing at the base of the rising bent portion.

Reference numeral 8 denotes a cam member inserted into the cutting portion 5 of the central pivotally connecting portion 4. The cam member 8 has a shape as shown in FIG. 8 and projects from the reference cam surface 8A indicated by the dotted line. It is provided with individual locking projections 8a and 8b. The lower side of the locking projection 8a is
It has an arcuate cam surface with the same radius as a ball 20 to be locked, which will be described later, and the upper cam surface is formed by a gentler curve than the lower arcuate cam surface.
The portions b are connected by an arc centered on the center O of the cam member 8. The cam member 8 has side end pivot parts 2 and 2 at its center.
And the pivot 1 inserted into the hollow holes 9 and 10 of the central pivot portion 4.
The insertion shaft hole 12 for 1 is provided, and the cutout portion 8c that fits into the cut portion 5 of the central pivot portion 4 is formed below the locking projection 8b.

In this embodiment, the locking projection 8a is projected so as to lock the ball 20 at a position where the two hinge attachment pieces 1 and 3 make an angle of 180 degrees, and the locking projection 8b is made up of two pieces. The hinge attachment pieces 1 and 3 are projected so as to lock the ball 20 at a position forming an angle of 30 degrees (see FIG. 3), but these protruding positions are variously changed according to the application of the hinge. be able to. FIG. 9 shows a distance r from the center O of the cam member 8 shown in FIG. 8 to the cam curved surface corresponding to each central angle (cam radius) r.
FIG. 4 is a cam diagram in which is plotted with the central angle as the horizontal axis.

In FIGS. 8 and 9, the opening angle of the two hinge attachment pieces is 1
The relationship between the cam member 8 and the ball 20 is shown with reference to the state of 80 degrees (indicated as 0 ° in the drawing). The opening angle of the hinge attachment piece is 180 degrees (0 ° in the drawing)
In this state, the center connecting line connecting the insertion shaft hole 12 of the cam member and the center of the ball 20 intersects with the door surface on the hinge mounting piece 1 side at an angle of θ (see FIG. 8).

From this state, if you close the opening angle of the hinge attachment piece,
The ball 20 moves on the peripheral surface of the cam member 8 (30
°, 60 °, 90 ° ……), 150 °
Move to the position displayed.

Since the door surface on the hinge attachment piece 1 side intersects with the center connecting line at an angle of θ, when the ball 20 is moved to the position indicated as 150 °, the opening angle of the hinge attachment piece is
It will be 30 degrees.

A spring housing member 13 as shown in FIG. 6 is fixed to the upper surface of one hinge attachment piece 1 so as to face the cam member 8 by spot welding or other means. Spring storage member 13
Has a semi-circular inverted U-shaped protrusion at the upper end, and has outwardly bent flange portions 13a, 1 on both sides of the lower end.
3a is formed. 14 is each flange 13a, 1
With the downward press protrusion formed on 3a, the spring accommodating member 13 is fixed by inserting the press protrusion 14, 14 into the holes 15, 15 provided at the corresponding positions of the one hinge attachment piece 1 and positioning it. , Spot welding S, S. The spring accommodating member 13 has a notch 16 formed on the upper surface on the side facing the cam member 8. The thick portions 13b, 13b on both sides of the notch 16 connect the hinge mounting pieces 1, 3 to the pivot shaft 11 respectively.
The balls 20 are slightly bent inward so that the balls 20 do not jump out from the inner ends of the protrusions before they are joined together. Further, the inverted U-shaped ridge is provided with a notch 17 having a constant width in a direction perpendicular to the length direction of the spring accommodating member 13 at the rear end portion away from the cam member 8.
7 has the same cross-sectional shape as the above-mentioned ridge, and a plate-like nut 18 having a protrusion 18a on the lower end surface is provided on one hinge attachment piece 1 corresponding to the protrusion 18a. The projection 18a is fitted and attached to the opening 19 of the.

A ball 20, a spring 21, and an adjusting screw 22 are housed in the protrusion of the spring housing member 13 in this order from the tip end side facing the cam member 8. The adjusting screw 22 is the plate nut 1
Since it is engraved on the screw 8, it is screwed with the screw 18b and changes the compression degree of the spring 21 when it is advanced and retracted by rotation, and adjusts the pressing force between the cam member 8 and the ball 20.

One hinge attachment piece 1 to which the spring storage member 13 is fixed
Has a plurality of mounting holes 23 on the outside of the flange portions 13a, 13a, respectively, and the other hinge mounting piece 3
A mounting hole 24 is provided at a position symmetrical to the mounting hole 23.

Since the one in this embodiment is configured as described above,
When the door is closed above and below the inner surface of the closet door as shown in FIGS. 10 and 11, when the door is closed (I in FIG. 11), the hinge becomes as shown by the solid line in FIG.
The ball 20 pressed by is locked by one locking projection 8a of the cam member 8 (FIG. 8), so that the door is securely held in the closed state. When a force is applied in the direction to open the door, the balls 20 that have been locked by the locking projections 8a.
Is moved to the rear of the spring accommodating member 13 against the biasing force of the spring 21 by the arcuate cam surface of the cam member 8, so that the ball 20 that has passed over the locking projection 8a will move to the next locking projection 8b.
The door is allowed to open up to the position where it is locked (see the chain double-dashed line in Fig. 3, see Fig. 8).

In this case, the closet door is locked at an angle of 30 degrees as shown by II in FIG. 11, and the distance l between the upper suspension cars W and W suspended on the upper rail R is kept at an appropriate value. Therefore, compared to the case where the door is folded as indicated by the double-dashed line III, the movement in the arrow P or P'direction can be performed in a stable state. When the opened door II is pulled in the direction of the arrow Q or Q ', the two locking projections 8a and 8b are connected by an arc, and the upper cam surface of one locking projection 8a is lowered. Since it is formed more gently than the side cam surface, the opened door II can be easily replaced by the door I.
Can be closed like.

Moreover, in this hinge, the spring accommodating member 13 is formed separately from the hinge attaching piece 1, and it is not necessary to form the cylindrical portions at both ends of the hinge attaching piece, so that the spring accommodating member 13 can be saved without trouble and expense. The ball 20 accommodated therein can be easily aligned with the cam member 8 mounted on the other hinge attachment piece 3. Also, just by replacing the cam member 8,
The position where the door is locked can be freely changed.
In addition, since the engraving of the female screw 18b to be screwed with the adjusting screw 22 may be provided not on the inner surface of the hollow winding portion but on the plate nut 18, no expert is required to engrave the female screw 18b. .

FIG. 12 shows another embodiment of the cam member used for the hinge. The cam curved surface between the two locking projections 8a and 8b, which is an arc in the above embodiment, is held with the door closed. This is a case where the cam radius r is formed by a curve that gradually decreases in the direction of the locking projection 8b that locks the door at the set opening angle from the locking projection 8a.

When the cam curved surface is formed in this way, in addition to the effect of the above embodiment, the door can be opened more smoothly between the locking projections 8a and 8b.

Further, the hinge having this structure can be used not only in the closet door but also in various other doors.

EFFECTS OF THE INVENTION Since the present invention includes the cam member having the first locking projection and the second locking projection, the closet door is closed (the opening angle of the hinge attachment piece is approximately 180 degrees). The door starts to open when a certain force is applied, and the door opening operation ends when the closet door is almost open (the opening angle of the hinge attachment piece is approximately 30 degrees). That is, the doors do not collide with each other and a comfortable opening / closing operation is guaranteed.

Further, since the present invention includes a plate-shaped nut housed in the cutout hole of the pressure generating portion and having a thread groove on the inner peripheral surface, and an adjusting screw screwed into the thread groove of the plate-shaped nut, This is convenient because there is no need to cut a thread groove inside the pressure generating part.

[Brief description of drawings]

1 is a perspective view of an embodiment of the present invention, FIG. 2 is a plan view, FIG. 3 is a front view, FIG. 4 (a) is a plan view of one hinge attachment piece, and FIG. 4 (b). Is a front view, FIG. 5 (a) is a plan view of another hinge attachment piece, FIG. 5 (b) is the same front view, FIG. 6 is a spring accommodating member, and (a) is a plan view. ) Is a front view, (c) is a left side view of the same, (d) is a right side view of the same, FIG. 7 is a front view of a plate nut,
FIG. 8 is an enlarged front view of the cam member, FIG. 9 is a developed view of the cam curve, FIG. 10 is a front view of the closet door, and FIG. 11 is an operation explanatory view showing the opened / closed state of the door, and FIG. Is an enlarged front view showing another embodiment of the cam member, and FIG. 13 is a development view of the cam curve. DESCRIPTION OF SYMBOLS 1 ... One hinge attachment piece, 2 ... Side end pivot attachment part, 3 ... The other hinge attachment piece, 4 ... Central pivot attachment part, 5 ... Cutting part, 8 ... Cam member, 8A ... Reference cam surface, 8a, 8b … Locking protrusions, 11…
Pivot shaft, 13 ... Spring storage member, 17 ... Notch, 18 ...
Plate nut, 20 ... Ball, 21 ... Spring, 22 ... Adjusting screw

Claims (1)

[Claims] 1. A one-sided hinge attachment piece (1) having side end pivot parts (2) on both sides in the length direction, and a central pivot part (4) at the center part in the length direction,
The other side hinge attachment piece (3) having a cut portion (5) that divides this into two in the middle of this central pivot portion, and the one side and the other side hinge attachment pieces (1, 3)
The pivot shaft (11) connected via (2, 4), the insertion shaft hole (12) through which this pivot shaft is inserted, the reference surface portion forming a circumferential surface concentric with the insertion shaft hole, The large diameter portion having a diameter larger than that of the reference surface portion, and the first and second locking projections (8a, 8b) that smoothly project from the reference surface portion, and the large diameter portion and the second locking projection portion. A cam member (8) fitted to the other hinge attachment piece (3) by a notch step (8c) between the cam member (8) and the cam member (8) orthogonal to the pivot shaft at a position facing the cam member (8). A pressing force generating portion provided on one side hinge attachment piece (1) and having a notch hole (17) oriented parallel to the pivot shaft.
(13), a plate nut (18) housed in the cutout hole (17) and having a thread groove (18b) on the inner peripheral surface, and an adjusting screw screwed into the thread groove of the plate nut. (twenty two)
A ball member (20) arranged to face the cam member in the pressing force generating section (13), and housed between the ball member and the adjusting screw, and by the rotation of the adjusting screw, A hinge for a closet door, comprising a spring member (21) in which the pressing force of the ball member on the cam member is variable, wherein the first locking protrusion (8a) is a hinge of the two hinge attachment pieces. A rising portion that locks the ball member when the opening angle is approximately 180 degrees, a top portion that forms a convex surface, and a falling portion that smoothly extends from the top portion toward the reference surface portion, The two locking protrusions (8b) include a rising portion that locks the ball member when the opening angle of the two hinge attachment pieces is approximately 30 degrees, a top portion that forms a flat surface, and the notch step portion. It is characterized by having a falling part that also serves as Hinge for Kurozettodoa.