JPH0756472Y2 - Hinge - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial application] The present invention relates to a hinge for rotatably attaching a door to a frame body.

[Conventional technology]

Conventionally, this type of hinge has a structure in which a shaft pin is inserted into the shaft cylinders of a pair of left and right blades.

Normally, a plurality of hinges are attached to one door at intervals in the vertical direction, but due to factors such as mounting error and fitting of the door and frame members after attachment, misalignment of the hinges with respect to the door is likely to occur. It was

For this reason, the door load is not evenly distributed to the hinges and is separated, so that good smoothness cannot be obtained at the time of rotation, and the concentrated function of the door load on one hinge causes early deterioration of function and early parts. It was causing wear and tear.

Therefore, for example, a hinge is proposed as in Japanese Utility Model Laid-Open No. 1-119770. According to this publication, in order to allow the protrusion amount of the shaft pin to be fitted and inserted into the mating shaft cylinder portion to be adjustable even after hanging, a screw operation member is provided on the bottom portion of the shaft cylinder portion to which the shaft pin is attached. This operating member is provided so that it can be operated by a tool such as a driver.

However, in the hinge according to the above publication, since the entire weight of the door is applied to the upper end of the shaft pin, the frictional resistance when the door is rotated is large.

Under such circumstances, it has been proposed today to mount a spherical body (for example, a steel ball) on the upper end of the shaft pin to reduce the frictional resistance at the time of rotation.
There is a gazette. According to this publication, the hinge has a shaft pin protruding from the shaft cylinder portion of the building-side mounting plate, and the shaft pin is fitted into the shaft cylinder portion of the door-side mounting plate to secure the hanging position. At this time, a sphere is interposed between the upper end of the shaft pin and the bottom surface in the shaft cylinder so that the load of the door is supported by the sphere.

[Problems to be solved by the device]

However, in the hinge configured as described in Japanese Utility Model Laid-Open No. 1-173278, a small, unstable member is moved between the tip of the shaft pin and the bottom surface of the shaft tubular portion while moving the heavy door during suspension. Since the troublesome work of inserting the sphere is added, one operator is required to hold the sphere, multiple workers are required, and an unstable sphere easily falls from the upper end of the shaft pin, resulting in work efficiency. There was a problem that it lowered.

In addition, there is a fear that the sphere may be lost before the sphere is arranged between the upper end of the shaft pin and the bottom surface of the shaft cylinder portion, and the reliability as a product is deteriorated.

Therefore, the present invention was made in order to solve the above-mentioned problems of the conventional example, and the purpose thereof is to improve the work efficiency by eliminating the troublesome work of manually setting the position of the sphere. It is to provide a hinge that can be made.

Another object of the present invention is to provide a hinge that can improve the reliability of the product.

[Means for Solving the Problems]

This invention was created to achieve the above-mentioned purpose,
In the hinge according to the invention of claim 1, the shaft pin is inserted into the shaft cylinder portion of the pair of left and right vane plates so as not to rotate, and the screw member is screwed in the screw hole provided at the lower end of the shaft pin in the axial direction. And a retaining portion for the screw member is formed at the bottom of one of the shaft cylinders that are arranged opposite to the screw member, and an operation hole for rotating the screw member from the outside is provided. A formed hinge, and a spherical body is integrally attached to the upper end of the shaft pin by projecting a spherical surface part of the spherical body, and the other cylindrical shaft part is arranged opposite to the spherical surface part. A contact surface for contacting the spherical portion is formed on the inner bottom surface.

The hinge according to a second aspect of the present invention is the hinge of the first aspect, wherein the shaft pin is provided with a recess at the upper end thereof for mounting the sphere, and the recess is formed by burying the sphere and caulking. It is characterized by becoming.

The hinge according to the invention of claim 3 is the hinge of claim 2 or 3.
In the above invention, half or more of the spheres are embedded in the recess.

[Action]

According to the hinge of the first aspect of the invention, at the time of suspending, the spherical portion reaches the bottom surface of the shaft cylindrical portion only by inserting the shaft pin into the opposing shaft cylindrical portion, and after the suspension, A spherical surface portion can be interposed between the upper end and the bottom surface inside the shaft tubular portion. At this time, when there is a deviation in the support state of each hinge due to an attachment error or the like, the screw member is rotated by inserting the operation tool in the operation hole of the shaft cylinder portion of the hinge with the deviation. The amount of change in the engagement amount of the screw member is adjusted by the vertical movement of the shaft pin, whereby the spherical portion of the shaft pin of each hinge comes into point contact with the bottom surface of the shaft cylinder portion. In this operation, the vertical mounting position of the door can also be adjusted by adjusting the screw member. In this way, the door load is evenly distributed to each hinge, the contact area is reduced by point contact between the spherical surface portion and the bottom surface of the shaft tube portion, and the frictional resistance at the time of rotation due to the door load is reduced.

Further, according to the hinge in the invention of claim 2, since the sphere is embedded in the recess, the cavities are fixed, so that the recess is fixed to the upper end of the shaft pin so as to cover the sphere.

Further, according to the hinge in the invention of claim 3, since the sphere is embedded in more than half, the opening of the recess is smaller than the diameter of the sphere after caulking, and the sphere is prevented from falling off.

〔Example〕

 1 to 5 show an embodiment of the present invention.

As shown in FIG. 2, a door T having a knob N is rotatably attached to the frame body W via hinges 2, 4, and 6. In the figure, reference numerals 8 and 10 denote blade plates attached to the frame body W and the door T, 12 and 14 denote shaft cylinder portions of the blade plates 8 and 10, and 16 denotes shaft cylinder portions 12 and 14, respectively.
A shaft pin to be inserted into the shaft pin, 18 is a protrusion for preventing rotation provided near the middle of the shaft pin, and 20 is provided in the vane plate 8 in a notched form or a joint form to engage with the protrusion. Is. In addition, a plurality of countersink holes 22 are formed in the blade plate 10 and are fixed with set screws 24.

A star 26 having a collar portion 26a and a column portion 26b is fitted into the end portion 14a of the shaft cylinder portion 14. Axis Pin 16 by this Giboshi 26
The upper end 16a of the is fixed. Also, the upper end 1 of the shaft pin 16
A spherical portion 28 is formed on 6a in order to reduce contact friction with the star 26 and improve smoothness when opening and closing the door.

The spherical surface portion 28 can be formed, for example, as a part of a spherical body embedded in the recess 16b formed in the upper end 16a of the shaft pin 16, that is, a steel ball 30. In this example, the steel balls 30 are embedded in the recesses 16b and the recesses 16b are subjected to caulking, whereby the steel balls 30 are attached to the recesses 16b. As a result, the steel ball 30 is fixed to the upper end of the shaft pin 16.
It is fixed to 16a so that it cannot rotate. Also, in this example Gisoshi 26
The lower surface, that is, the bottom surface inside the shaft cylinder portion 14 serves as a contact surface 32 with which the spherical surface portion 28 abuts.

On the other hand, a screw hole 34 is formed in the lower end 16c of the shaft pin 16 in the axial direction, and a screw member 36 having an operating head 36a that can be rotated by an operating tool such as a screwdriver is screwed into the screw hole 34. Have been combined.

Correspondingly, a star 38 having a flange 38a and a tubular retaining portion 38b is fitted into the end portion 12a of the shaft tubular portion 12. The operation head portion 36a of the screw member 36 is locked to the upper end 38c of the retaining portion 38b and retained. Further, the inner hole of the star 38 serves as an operation hole 40, and an operation tool is inserted from the outside through the operation hole 40 to adjust the screwing amount of the screw member 36. A commercially available set screw can be used for the screw member 36, and the inner diameter of the retaining portion 38b can be determined correspondingly.

The operation head 36a of the screw member 36 can be variously selected from those having a groove for a driver or the like and those having a convex portion or a concave portion for a box wrench or a square wrench.

Next, the operation of adjusting the load of the door T so that the hinges 2, 4, 6 are evenly applied will be described with reference to FIG.

For example, in the upper hinge 2, there is no gap between the abutment surface 32 and the spherical surface portion 28, and in the central hinge 4 and the lower hinge 6, the mounting error and the door T and the frame body W after mounting are different. It is assumed that gaps d ₁ and d ₂ are generated due to factors such as familiarity. In this case, the load of the door T is received only by the upper hinge 2, and the frictional resistance is reduced by the point contact between the contact surface 32 and the spherical portion 28, but the merit of supporting with three hinges. , That is, load the door T to each hinge 2,4,6
Therefore, it is not possible to take advantage of the merit that the smoothness at the time of rotation can be improved as a whole by evenly distributing the same. In addition, the concentrated concentration of the load on the door T causes early deterioration of the function of the hinge 2 and early wear of parts.

In such a case, the screw members 36, 36 of the hinges 4 and 6 are rotated by an operating tool such as a screwdriver inserted from the outside through the operating holes 40, 40. Screw member 36,3
When 6 is rotated, the shaft pins 16 and 16 are stopped by the protrusions 18 and 18, so that they move upward and are shown by the two-dot chain line by adjusting the adjustment amounts d ₁ and d ₂ accordingly. Thus, the spherical surfaces 28, 28 abut on the abutting surfaces 32, 32. As a result, the load of the door T is evenly distributed to the hinges 2, 4, and 6 and the frictional resistance due to the point contact between the contact surface 32 and the spherical surface portion 28 at each hinge 2, 4, 6 is reduced. The function is exhibited, and the operability of turning the door T is improved as a whole. Further, since the concentration of the load on the door T is prevented from being concentrated locally, the functions of the hinges 2, 4, and 6 are stable for a long period of time, and early wear of parts is avoided. The adjusting method is not limited to the above, of course, and it can be appropriately performed depending on the mounting state, such as lowering the shaft pin 16 of the upper hinge 2.

In this example, the spherical portion 28 is provided on the upper end 16a of the shaft pin 16 and the screw member 36 is provided on the lower end 16c, but the contact surface 32 and the retaining portion 38b are provided in the opposite manner. It is also possible to adopt a configuration in which, etc. are provided. Further, the present invention is not limited to the pull-out type hinges illustrated, but can be similarly applied to non-removable type hinges.

Further, according to the hinges 2, 4, and 6 according to the present invention, the up and down adjustment of the door T can be performed. That is, as shown in FIG. 4, when it is necessary to shift the mounting position of the door T upward, for example, the operation tool is inserted into the operation hole 40 and the screw member 36 is rotated as in the case described above. , The amount of screwing on the shaft pin 16
Changed from l ₁ to l ₂ . As a result, the door T is dimensioned (l ₁ −
l ₂ ) minutes above.

Furthermore, the hinges 2, 4, 6 according to this example have a structure for adjusting the inclination of the door T with respect to the frame body W.

That is, a plurality of countersink holes 22 for the set screw 24 are formed in the blade plate 8 and a round hole 44 corresponding to the adjustment screw 42 is formed at a vertical position suitable for tilt adjustment. The adjusting screw 42 has a collar part that is locked to the back side of the round hole 44.
42a is formed, and a concave or convex operation portion 42 for rotating the head end face from the surface side of the round hole 44 is used.
b is formed. The adjusting screw 42 is an embedded member 4 in the frame body W.
It is attached via 6 and is embedded in the frame body W
An embedded hole 48 for 6 is formed. The embedded member 46 is
For example, a tappable resin can be formed into a shape having an inner hole 46a and a multi-step hook portion 46b on the outer peripheral surface.

By making the outer diameter of the hook portion 46b slightly larger than the diameter of the embedding hole 48, embedding and fixing in the embedding hole 48 can be obtained only by the embedding operation. The adjusting screw 42 is screwed into the inner hole 46a by tapping, and the tip end thereof is directly screwed into the frame body W. Of course, the embedding member 46 and the adjusting screw 42 may be screwed together not by tapping, but by screwing with an ordinary preformed screw. The embedding member 46 maintains the screwing strength of the adjusting screw 42 with respect to the frame body W, which is usually a wooden material, and avoids problems such as unadjustability, rattling, and positional deviation due to the screw surface collapse. Further, the set screw 24 can also be attached via the embedded member 46.

Explaining an example of mounting and tilt adjustment according to the above configuration,
First, the embedding member 46 is press-fitted into the embedding hole 48, and the adjusting screw 42 is screwed by tapping or the like. Next, adjust the blade 8 to the adjusting screw 42.
Then, the fixing screw 24 is screwed in and fixed in about eight minutes, the adjusting screw 42 is adjusted by a predetermined dimension s, and then the fixing screw 24 is tightened and fixed.

In the recess 16b, it is preferable that the embedded amount of the steel ball 30 is set to the lower hemisphere or a part of the upper hemisphere of the sphere, so that the opening of the recess 16b is smaller than the diameter of the steel ball 30 after caulking. As a result, the steel ball 30 can be prevented from falling off. this is,
Since the steel ball 30 and the contact surface 32 of the shaft tube portion 14 are in point contact with each other, the area of the spherical surface portion 28 may be the minimum necessary, and the more the embedded amount of the steel ball 30, the more reliably the steel ball. It is possible to hold 30.

Next, FIGS. 6 and 9 show another example of the present invention.

In the above example, the steel ball 30 forming the spherical portion 28 is a shaft pin.
Although fixed to the upper end 16a of 16 by crimping, it may have a loose fitting structure in which it is rotatably held in the recess 16b as shown in FIG. In this case, since the frictional resistance during rotation between the spherical surface portion 28 and the contact surface 32 can be further reduced, the operability of the rotation of the door T can be further improved. Note that, in this case as well, crimping or the like can be applied.

Further, as shown in FIG. 7, the upper end 16a of the shaft pin 16 may be spherically finished to form a spherical surface portion 50. In this case, in order to reduce the wear of the spherical surface portion 50 due to friction, it is desirable to cure the spherical surface portion 50 by means such as quenching.

Further, as shown in FIG. 8, instead of the spherical structure, the shaft pin
A small thrust bearing mechanism 52 may be attached to the upper end 16a of 16 and fixed. in this case,
It is possible to obtain a friction reducing function that is more than spherical contact. Reference numeral 16d represents a recess for mounting and fixing the thrust bearing mechanism 52.

Further, as shown in FIG. 9, the male and female forms of the shaft pin 16 and the screw member 36 may be reversed. That is, a male screw portion 58 is formed at one end of the shaft pin 56 at which the collar portion 54 is integrally formed so as to project at a substantially intermediate position, and the male screw portion 58 is screwed with the screw member 60 having the female screw portion 60a. Has been done. Similar to the above example, the screw member 60 is formed with an operation head 60b having a concave or convex operation surface. The lower limit position of the blade plate 10 with respect to the shaft pin 56 is restricted by the collar portion 54. The vertical adjustment is the same as in the above example. In this example, splines can be formed on the circumferential surface of the cylindrical portion or the cylindrical portion 26b of the star 26. By doing so, there is an advantage that the fixing to the shaft tube portion 14 becomes strong only by a simple press-fitting operation, and a fixing means such as welding can be omitted.

[Effect of device]

As described above, according to the first aspect of the present invention, the shaft pin is inserted into the shaft tubular portions of the pair of left and right vane plates while being prevented from rotating, and the screw member is axially screwed to the lower end of the shaft pin. A retaining portion for the screw member is formed at the bottom of one of the shaft cylinders arranged opposite to the screw member, and an operation hole for rotating the screw member from the outside is formed. In the hinge, a spherical body is integrally attached to the upper end of the shaft pin by projecting a spherical portion, which is a part thereof, on the bottom surface of the other axial cylinder portion arranged opposite to this spherical portion. Since the contact surface for contacting the spherical surface is formed, it is possible to eliminate the troublesome work of manually setting the position of the sphere and improve the work efficiency. At that time, it is not necessary to arrange a large number of people, as in the conventional case, in which one operator holds the sphere when hanging, and other workers are in charge of hanging, so it is possible for one person to sufficiently carry out the hanging work. It is possible to reduce personnel.

Further, according to the invention of claim 2, a recess for mounting the sphere is formed at the upper end of the shaft pin, and the recess is formed by embedding the sphere and crimping the sphere. The shaft pin is fixed to the upper end of the shaft pin in a state of being covered with the recess, and thus it is possible to reliably prevent the shaft pin from falling off the upper end.

Further, according to the invention of claim 3, since the sphere is embedded in the recess more than half, the opening of the recess becomes smaller than the diameter of the sphere after caulking, and the sphere can be prevented from falling out. Therefore, it is possible to improve the reliability of the product.

[Brief description of drawings]

FIG. 1 is an exploded perspective view showing an embodiment of a hinge according to the present invention, FIG. 2 is a front view showing a usage state, and FIG. 3 is a view showing an operation of adjusting a support deviation of a load of a flip-up door. (A) is a sectional view thereof, (B) and (C) are partially omitted sectional views,
FIG. 4 is a partially omitted cross-sectional view showing vertical adjustment, and FIG. 5 is a cross-sectional view of an essential part showing tilt adjustment taken along line VV in FIG.
6 to 8 are sectional views showing another example around the spherical portion, and FIG. 9 is a sectional view showing another example around the screw member. 8,10 …… Vane plate 12,14 …… Shaft cylinder 12a, 14a …… End 16 …… Shaft pin 28,50 …… Spherical surface 32 …… Abutment surface (bottom) 36,60 …… Screw member 38: retaining part 40: operating hole

Claims (3)

[Scope of utility model registration request] 1. A shaft pin is inserted into a shaft cylinder portion of a pair of left and right vane plates so as not to rotate, and a screw member is screwed in a screw hole provided at a lower end of the shaft pin in an axial direction. A hinge in which a retaining portion for the screw member is formed at the bottom of one of the shaft cylindrical portions arranged to face the member, and an operation hole for rotating the screw member from the outside is formed. In addition, a spherical body is integrally attached to the upper end of the shaft pin by projecting a spherical surface portion that is a part of the spherical pin, and the bottom surface inside the other shaft cylindrical portion arranged opposite to the spherical surface portion is A hinge characterized in that a contact surface for contacting the spherical surface portion is formed. 2. The hinge according to claim 1, wherein a recess for mounting the sphere is formed at the upper end of the shaft pin, and the recess is formed by embedding the sphere and caulking. 3. A hinge according to claim 2 or 3, wherein half or more of said sphere is buried in said recess.