JP4245164B2 - Cabinet hinge, cabinet using the same, and method for manufacturing the cabinet hinge - Google Patents

Description

  The present invention relates to a hinge used for a cabinet such as a washstand and a dressing table, a cabinet for the hinge, and a method for manufacturing the hinge.

  For example, in a cabinet such as a wash basin and a vanity, there is a type in which a mirror-attached door body is configured as a lid that can be rotated around a hinge shaft with respect to a cabinet body that accommodates an object to be accommodated such as a towel. And the hinge axis | shaft is arrange | positioned in the up-and-down position of the right-and-left end part of a door body so that the door body with a mirror can be opened largely (refer patent document 1).

Utility Model Registration No. 2510265

  In such a cabinet, the door body is frequently opened and closed in order to project a face or the like in a mirror or to put in or out the object. At this time, the weight of the mirrored door body repeatedly acts on the hinge shaft as a cantilever moment. Therefore, wear or the like occurs in the caulking fixing portion between the movable side hinge plate attached to the mirrored door and the hinge shaft tip, or the contact portion between the fixed side hinge plate attached to the cabinet body and the hinge shaft head. There is a case. Moreover, there is a possibility that the hinge shaft may come off or fall off from the movable side hinge plate and the fixed side hinge plate due to such wear.

  An object of the present invention is to provide a hinge for a cabinet that can improve the safety and life of the hinge shaft by suppressing wear and the like of the hinge shaft, a cabinet using the same, and a method for manufacturing the hinge for the cabinet. There is.

Means for Solving the Problems and Effects of the Invention

In order to solve the above problems, the cabinet hinge of the present invention is
A fixed-side hinge plate that is scheduled to be fixed to a cabinet body that accommodates an object to be accommodated, and in which a circular hole (for example, a circular hole) is formed;
It is scheduled to be fixed to a door body that can be opened and closed with respect to the cabinet body, and a polygonal rectangular hole (non-circular hole) having a smaller cross-sectional area perpendicular to the axis than the circular hole is formed. A movable hinge plate;
A circular shaft insertion portion (for example, a round shaft insertion portion) formed on the head side and inserted into the circular hole portion of the fixed side hinge plate, and connected to the distal end side in the insertion direction of the circular shaft insertion portion; After being inserted into the square hole portion of the movable side hinge plate, it is fixed to the movable side hinge plate by a caulking process applied to the tip portion thereof. And a single hinge shaft having
A hinge shaft caulking pin having a polygonal cross-section angular shaft insertion portion (non-circular shaft insertion portion) connected to the distal end side in the insertion direction of the circular shaft insertion portion via a stepped portion is seen from the insertion direction. And the chamfer radius for rounding the corners of the corners of the angular axis insertion portion is smaller than the width of the two sides of the square hole portion. And is inserted larger than the chamfer radius for rounding the corners of the corners, and is inserted in the form of a clearance fit that is inscribed or close to the square hole, and is inserted into the tip of the angular shaft insertion portion. by performing swaging, the angle shaft-like fixing portion, the form comprising a crimping portion having a smaller axial orthogonal cross-sectional area than larger the head than any of the angle hole and circular hole at its distal end Formed to constitute the hinge shaft ,
The fixed-side hinge plate and the hinge shaft are connected so as to be relatively rotatable between the circular hole portion and the circular shaft-shaped insertion portion, while the movable-side hinge plate and the hinge shaft are connected to the square hole portion and the corner shaft. It is integrally connected to the shaft-like fixed portion so as not to be relatively rotatable.

Moreover, in order to solve the said subject, the hinge for cabinets of this invention is the following.
A fixed-side hinge plate that is scheduled to be fixed to a cabinet body that accommodates an object to be accommodated, and in which a circular hole (for example, a circular hole) is formed;
It is scheduled to be fixed to a door body that can be opened and closed with respect to the cabinet body, and has a polygonal square hole portion (non-circular hole portion) having an axial orthogonal cross-sectional area smaller than the circular hole portion, and the square hole. A movable-side hinge plate in which an enlarged hole portion (for example, a countersunk hole portion) having an axial cross-sectional area larger than the portion is continuously formed on the same axis,
A circular shaft insertion portion (for example, a round shaft insertion portion) formed on the head side and inserted into the circular hole portion of the fixed side hinge plate, and connected to the distal end side in the insertion direction of the circular shaft insertion portion; After being inserted into the enlarged hole portion through the square hole portion of the movable side hinge plate, the corner having a polygonal cross section is fixed by filling at least the enlarged hole portion of the movable side hinge plate by caulking applied to the tip portion. A single hinge shaft having a shaft-shaped fixing portion (non-circular shaft-shaped fixing portion), and
A hinge shaft caulking pin having a polygonal cross-section angular shaft insertion portion (non-circular shaft insertion portion) connected to the distal end side in the insertion direction of the circular shaft insertion portion via a stepped portion is seen from the insertion direction. And the chamfer radius for rounding the corners of the corners of the angular axis insertion portion is smaller than the width of the two sides of the square hole portion. And is inserted larger than the chamfer radius for rounding the corners of the corners, and is inserted in the form of a clearance fit that is inscribed or close to the square hole, and is inserted into the tip of the angular shaft insertion portion. by performing swaging, the angle shaft-like fixing portion, the form comprising a crimping portion having a smaller axial orthogonal cross-sectional area than larger the head than any of the angle hole and circular hole at its distal end Formed to constitute the hinge shaft ,
The fixed-side hinge plate and the hinge shaft are connected so as to be relatively rotatable between the circular hole portion and the circular shaft-shaped insertion portion, while the movable-side hinge plate and the hinge shaft are connected to the square hole portion and the enlarged portion. The hole portion and the rectangular shaft-shaped fixed portion are integrally connected so as not to rotate relative to each other.

According to these cabinet hinges, the fixed-side hinge plate and the hinge shaft are connected to each other so as to be relatively rotatable between the circular hole portion and the circular shaft-shaped insertion portion, and the movable-side hinge plate and the hinge shaft are The square hole part (or the square hole part and the enlarged hole part) and the square shaft-like fixed part are integrally connected so as not to be relatively rotatable by caulking. Therefore, the hinge shaft smoothly rotates relative to the fixed-side hinge plate, and is firmly integrated with the movable-side hinge plate by engaging the square hole with the square shaft and caulking. Even if the weight of the door body repeatedly acts as a cantilever moment, wear or the like hardly occurs. As a result, the hinge shaft can be prevented from coming out and falling off the movable side hinge plate and the fixed side hinge plate, and the safety and life of the hinge shaft can be increased.

  Further, when the non-circular hole portion and the enlarged hole portion are formed in the movable hinge plate, the amount of protrusion of the crimp portion toward the door body can be reduced by accommodating the crimp portion in the enlarged hole portion. In this case, it is desirable that the axial depth of the noncircular hole occupies 1/2 or more of the thickness of the movable hinge plate. By enlarging the engagement section between the non-circular hole and the non-circular shaft, it is possible to prevent idling or the like in the enlarged hole portion of the non-circular shaft-shaped fixing portion even when a large moment acts on the hinge shaft. Therefore, if the axial depth of the non-circular hole is less than half of the thickness of the movable hinge plate, when a large moment acts on the hinge shaft, the non-circular axial fixed portion is caused by loosening (cutting) of the caulking. May run idle in the enlarged hole.

  In such a cabinet hinge, a hinge shaft caulking pin having a non-circular shaft insertion portion connected via a stepped portion to the front end side in the insertion direction of the circular shaft insertion portion is inserted into the non-circular hole portion. The non-circular shaft-shaped fixed portion may be formed by inserting in a close-fitting form that is in contact with or in close proximity, and applying a caulking process to the tip of the non-circular shaft-shaped insertion portion. When inserting the hinge pin caulking pin, the non-circular shaft insertion part is smoothly inserted into the non-circular hole part, and the insertion stop position is determined by the stepped part, so that the caulking pin is deformed or damaged. There is nothing to do.

In particular,
The non-circular shaft insertion portion of the hinge shaft caulking pin is formed in the polygonal cross-section angular shaft insertion portion, while the non-circular hole portion of the movable side hinge plate is formed in the polygonal cross-section square hole portion from the insertion direction. As seen, the chamfering radius for rounding the corners of the corners of the square-axis insertion part is smaller than the two-sided width of the square-axis insertion part and the corners of the corners of the corner hole are rounded. In some cases, it is formed larger than the chamfering radius for rounding the corners of the part . According to this, when the square shaft insertion portion is manufactured by forging (for example, header processing) or the like, and the square hole portion is manufactured by pressing (for example, punching processing) or the like, the clearance fit form can be easily and accurately formed. Of course, the circular shaft insertion portion of the hinge pin caulking pin is also inserted in the form of a clearance fit inscribed in or close to the circular hole portion.

  On the other hand, a first washer and a second washer into which the hinge shaft is inserted are respectively interposed between the head of the hinge shaft and the fixed hinge plate and between the fixed hinge plate and the movable hinge plate. In addition, it is desirable that each of these washers is made of a material different from the material of the fixed-side hinge plate, and the thickness of the second washer is set to be equal to or greater than the thickness of the first washer. Thus, washers are interposed on both sides of the fixed-side hinge plate, and both are made of a material different from that of the fixed-side hinge plate. Therefore, the head of the hinge shaft does not easily wear or adhere to the fixed side hinge plate, and the hinge shaft (and the movable side hinge plate) and the fixed side hinge plate can smoothly rotate relative to each other. The safety and long life of the shaft can be achieved. Furthermore, by setting the thickness of the second washer (between the hinge plates) to be equal to or greater than the thickness of the first washer (the hinge shaft head side), the gap between the hinge plates can be made relatively large. It becomes easy to prevent mutual interference (mutual contact) between the hinge plates or between the cabinet body and the door body. On the other hand, the amount of protrusion of the hinge shaft head to the outside of the cabinet can be made relatively small, so that the design is also improved.

  Specifically, when the thickness of the second washer is set to twice the thickness of the first washer, the mutual interference (mutual contact) between the hinge plates or between the cabinet body and the door body is further prevented. It becomes easy. Furthermore, since the first washer can use two sheets, the cost of the cabinet hinge can be reduced.

  When the washer and the fixed hinge plate are made of different materials, the composition (component) of the same kind of metal is made different (for example, the same stainless steel is also austenitic and ferrite), so that the washer and the fixed hinge plate are made. In some cases, it is possible to prevent sticking. In any case, when the washer and the fixed hinge plate are made of different materials, the life of the hinge shaft can be further extended by using a material having high hardness on the washer side.

Therefore, in order to solve the above problems, the cabinet of the present invention is
A pair of cabinet hinges as described above,
Among the hinges for one of the cabinets, the fixed side hinge plate is attached to the upper edge of the cabinet body, and the movable side hinge plate is attached to the upper edge of the door body,
Among the hinges for the other cabinet, the fixed side hinge plate is attached to the lower edge of the cabinet body, and the movable side hinge plate is attached to the lower edge of the door body,
The door body is configured to form a lid that can be rotated and opened around the hinge shaft with respect to the cabinet body in order to put in and out the object.

  As a result, even if the door body is frequently opened and closed in order to load or unload items, even if the weight of the door body repeatedly acts as a cantilever moment on the hinge shaft, the hinge shaft is worn. Hateful. Accordingly, the hinge shaft and the hinge for the cabinet, and further the safety and long life of the cabinet can be achieved.

Next, in order to solve the above-mentioned problem, the manufacturing method of the hinge for cabinet of the present invention,
It is scheduled to be fixed to the cabinet main body that accommodates the objects to be stored, and is fixed to the fixed-side hinge plate through which the circular hole is formed and the door body that can be opened and closed with respect to the cabinet main body. A plate that overlaps a movable-side hinge plate in which a polygonal rectangular hole having a smaller cross-sectional area perpendicular to the axis than the circular hole is formed so that the through-holes of the circular hole and the rectangular hole coincide with each other. Position adjustment process;
A single hinge shaft caulking pin having a circular shaft-shaped insertion portion formed on the head side and a polygonal cross-sectional angular shaft-shaped insertion portion connected to the distal end side in the insertion direction of the circular shaft-shaped insertion portion, A chamfer radius for rounding corners of the corners of the angular axis insertion portion, as viewed from the insertion direction, the width of the two sides of the angular axis insertion portion is smaller than the width of the two sides of the square hole portion. Is formed to be larger than a chamfer radius for rounding the corner of the corner hole portion, and the angular axis insertion portion is positioned in a clearance fit form inscribed or close to the corner hole portion. A hinge pin caulking pin insertion step for inserting the circular shaft insertion portion so that the circular shaft insertion portion is located in the inscribed or close contact form in the circular hole portion when viewed from the insertion direction,
The crimping process is performed on the distal end portion of the angular shaft-shaped insertion portion, and the crimping portion having an axial orthogonal cross-sectional area that is larger than any of the square hole portion and the circular hole portion and smaller than the head portion at the distal end portion, and wherein forming the movable fixed square shaft-shaped fixing portion to the hinge plate, a crimping step forming the caulking pin for the hinge axis and the hinge axis,
It is characterized by including.

Moreover, in order to solve the said subject, the manufacturing method of the hinge for cabinets of this invention is the following.
It is scheduled to be fixed to the cabinet main body that accommodates the objects to be stored, and is fixed to the fixed-side hinge plate through which the circular hole is formed and the door body that can be opened and closed with respect to the cabinet main body. A movable side in which a polygonal rectangular hole having a smaller cross-sectional area than the circular hole and an enlarged hole having a larger cross-sectional area than the rectangular hole are continuously formed on the same axis. A plate position adjusting step of superimposing the hinge plate with the circular hole portion, the square hole portion, and the enlarged hole portion being aligned with each other in a penetrating direction;
A single hinge shaft caulking pin having a circular shaft-shaped insertion portion formed on the head side and a polygonal cross-sectional angular shaft-shaped insertion portion connected to the distal end side in the insertion direction of the circular shaft-shaped insertion portion, A chamfer radius for rounding corners of the corners of the angular axis insertion portion, as viewed from the insertion direction, the width of the two sides of the angular axis insertion portion is smaller than the width of the two sides of the square hole portion. Is formed to be larger than a chamfer radius for rounding the corner of the corner hole portion, and the angular axis insertion portion is positioned in a clearance fit form inscribed or close to the corner hole portion. A hinge pin caulking pin insertion step for inserting the circular shaft insertion portion so that the circular shaft insertion portion is located in the inscribed or close contact form in the circular hole portion when viewed from the insertion direction,
The crimping process is performed on the distal end portion of the angular shaft-shaped insertion portion, and the crimping portion having an axial orthogonal cross-sectional area that is larger than any of the square hole portion and the circular hole portion and smaller than the head portion at the distal end portion, And forming an angular shaft-shaped fixed portion that is fixed by filling an enlarged hole portion of the movable-side hinge plate, and a crimping step of using the hinge shaft caulking pin as a hinge shaft;
It is characterized by including.

According to these manufacturing methods, the angular shaft insertion portion of the hinge shaft caulking pin is inserted into the square hole portion , and the circular shaft insertion portion is inserted into the circular hole portion so as to be positioned in a clearance fit, and then the corner is inserted. A crimping process is applied to the tip of the shaft-like insertion portion . Accordingly, the caulking pin for the hinge shaft is inserted and connected to the fixed hinge plate and the movable hinge plate very smoothly, and the production efficiency of the hinge for the cabinet is improved.

Example 1
Hereinafter, embodiments of the invention will be described with reference to the drawings. FIG. 1 is a plan view and a front view showing an example of a cabinet using a cabinet hinge according to the present invention. A cabinet 200 shown in FIG. 1 includes a pair of cabinet hinges 1 (detailed structure will be described later) according to the present invention. Among them, the upper hinge 1 for the cabinet has the fixed hinge plate 10 attached to the upper edge of the cabinet body 210 and the movable hinge plate 20 attached to the upper edge of the door body 220 having the mirror 221 on the front surface. On the other hand, in the lower hinge 1 for the cabinet, the fixed side hinge plate 10 is attached to the lower edge of the cabinet body 210, and the movable side hinge plate 10 is attached to the lower edge of the door body 220. Thus, the door body 220 constitutes a lid that can be rotated and opened around the hinge shaft 30 with respect to the cabinet body 210 in order to put in and out the objects to be accommodated.

  2 is a plan view and a front view showing an example of a cabinet hinge used in FIG. 1, FIG. 3 is a plan view and a front view of the fixed side hinge plate, and FIG. 4 is a plan view and a front view of the movable side hinge plate. FIG. 5 is a front view and a bottom view of a hinge pin caulking pin used therefor. As shown in FIG. 2, a cabinet hinge (hereinafter also referred to as a mirror hinge) 1 includes one L-shaped fixed hinge plate 10, one flat movable hinge plate 20, And a single hinge shaft 30 having a round shaft insertion portion 31 (circular shaft insertion portion) and a square shaft fixing portion 32 (non-circular shaft fixing portion). The fixed side hinge plate 10, the movable side hinge plate 20, and the hinge shaft 30 are made of the same metal material (for example, stainless steel SUS430).

  As shown in FIG. 3, the fixed-side hinge plate 10 has one or a plurality of (for example, three) mounting holes 12 for fixing to a cabinet body 210 (see FIG. 1) that accommodates objects. A plurality of circular holes 11 (circular hole portions) having a circular shape (for example, a circular shape) in plan view (axial orthogonal cross section) are formed so as to penetrate therethrough. Further, as shown in FIG. 4, the movable-side hinge plate 20 has one or a plurality (for example, two) of fixing to a door body 220 with a mirror 221 that can be opened and closed with respect to the cabinet body 210 (see FIG. 1). The mounting hole 22 is provided, and one rectangular hole 21 (non-circular hole) having a polygonal shape (for example, a square shape) in plan view (axial orthogonal cross section) is formed therethrough. In addition, the axial orthogonal cross-sectional area of the square hole portion 21 is formed smaller than the axial orthogonal cross-sectional area of the round hole portion 11. Further, reference numeral 19 in FIG. 3 denotes a fixed stopper, and reference numeral 29 in FIG. 4 denotes a movable stopper, which regulates the maximum rotation angle of the door body 220 around the hinge shaft 30 (see FIG. 2).

  The hinge shaft 30 is configured by caulking the tip end portion of the hinge shaft caulking pin 30 ′ shown in FIG. 5 in the manufacturing process of the mirror hinge 1. The hinge shaft caulking pin 30 ′ includes a round shaft insertion portion 31 (circular shaft insertion portion) having a circular shape (for example, a circular shape) formed on the circular flange-shaped head portion 33 side view (axis orthogonal cross-section) and a round shape. A bottom-view (axial orthogonal cross section) polygonal shape (for example, a square shape) angular shaft insertion portion 32 '(non-circular shaft) connected via a stepped portion 34 whose diameter decreases toward the distal end side in the insertion direction of the shaft insertion portion 31 Shaped insertion part). The round shaft insertion portion 31 is inserted into the round hole portion 11 of the fixed side hinge plate 10 in the form of a clearance fit that is inscribed in or close to the round hole portion 11, and the square shaft insertion portion 32 ′ is a square hole portion of the movable side hinge plate 20. 21 is inserted in the form of a clearance fit inscribed in or close to 21 (see FIG. 6). Then, the distal end portion of the angular shaft insertion portion 32 ′ is crimped to form the angular shaft fixing portion 32, and is fixed to the movable hinge plate 20 by the crimping portion 32 a (see FIG. 7). At this time, the fixed side hinge plate 10 and the hinge shaft 30 are connected to each other so as to be relatively rotatable between the round hole portion 11 and the round shaft-like insertion portion 31, and the movable side hinge plate 20 and the hinge shaft 30 are square holes. The portion 21 and the square shaft-shaped fixing portion 32 (caulking portion 32a) are integrally connected so as not to be relatively rotatable.

As shown in FIG. 6B, the square shaft insertion portion 32 'of the hinge shaft caulking pin 30' and the square hole portion 21 of the movable hinge plate 20 are both formed in a square cross section. Further, the two-surface width W ′ of the square-axis insertion portion 32 ′ is smaller than the two-surface width W of the square hole portion 21 (W ′ <W), and the four corners of the square- axis insertion portion 32 ′ are rounded. The chamfer radius R ′ for this purpose is formed larger than the chamfer radius R for rounding the four corners of the square hole portion 21 (R ′> R). As a result, when the square shaft insertion portion 32 ′ is manufactured by forging (for example, header processing) or the like, and the square hole portion 21 is manufactured by pressing (for example, punching processing) or the like, the above-described clearance fit configuration is easy and accurate. Can be formed.

  As shown in FIG. 7, the hinge shaft 30 smoothly rotates relative to the fixed-side hinge plate 10, and between the movable-side hinge plate 20, the square hole portion 21, the square-axis-shaped fixed portion 32, and the like. Are firmly integrated by engagement and caulking (caulking portion 32a). Therefore, even if the weight of the door body 210 (see FIG. 1) repeatedly acts as a cantilever moment, the hinge shaft 30 is unlikely to be worn. As shown in FIG. 6, when inserting the hinge pin caulking pin 30 ′, the rectangular shaft insertion portion 32 ′ is smoothly inserted into the square hole portion 21, and the insertion stop position is determined by the stepped portion 34. Therefore, the caulking pin 30 'is not deformed or damaged.

  Further, as shown in FIGS. 6 and 7, a first washer in which the hinge shaft 30 is inserted between the head 33 of the hinge shaft 30 (the hinge shaft caulking pin 30 ′) and the fixed-side hinge plate 10. 41 is interposed. On the other hand, a second washer 42 into which the hinge shaft 30 is inserted is interposed between the fixed side hinge plate 10 and the movable side hinge plate 20. Both the washers 41 and 42 are made of a metal made of a material different from the material of the fixed-side hinge plate 10 (for example, stainless steel SUS301CSP, brass C2801P, etc.). In this way, by using a material having higher hardness than the fixed side hinge plate 10 for both washers 41, 42, it is possible to prevent the washer 41, 42 and the fixed side hinge plate 10 from sticking, and the hinge shaft 30 has a long life. Become.

Next, with reference to FIG.6 and FIG.7, the manufacturing method of the mirror hinge 1 is demonstrated.
<Plate position adjustment process> (FIG. 6)
First, the fixed-side hinge plate 10, the movable-side hinge plate 20, and the hinge shaft caulking pin 30 ′ are each processed into a predetermined shape (see FIGS. 3, 4, and 5). Next, the fixed side hinge plate 10 and the movable side hinge plate 20 are overlapped with each other so that the penetrating directions of the round hole portion 11 and the square hole portion 21 are the same.

<Crimping pin insertion process for hinge shaft> (Fig. 6)
The hinge shaft caulking pin 30 ′ is inserted so that the square shaft insertion portion 32 ′ is positioned in the square hole portion 21, and the round shaft insertion portion 31 is positioned in the round hole portion 11 so as to be positioned in a clearance fit that is inscribed or close. . At this time, the first washer 41 is provided between the head 33 of the hinge shaft caulking pin 30 ′ and the fixed side hinge plate 10, and the second washer 42 is provided between the fixed side hinge plate 10 and the movable side hinge plate 20. Are intervened.

<Caulking process> (Fig. 7)
By applying a caulking process to the distal end portion of the angular shaft insertion portion 32 ′ (see FIG. 6), the angular shaft fixing portion 32 is formed, and the distal end portion is larger than either the square hole portion 21 or the round hole portion 11. A caulking portion 32 a having a circular shape or a polygonal shape (for example, octagonal shape) having a cross-sectional area smaller than the head 33 is formed, and the hinge shaft 30 is fixed to the movable hinge plate 20.

(Example 2)
FIG. 8 shows a plan view and a front view of a movable hinge plate used in a mirror hinge 2 (cabinet hinge; see FIG. 10) as another embodiment of the present invention. The movable-side hinge plate 120 of FIG. 8 expands in a plan view (axial orthogonal cross section) polygonal shape (for example, square shape) square hole portion 21 (non-circular hole portion) and a trumpet shape (for example, truncated cone shape). The countersunk hole 121 (enlarged hole) is continuously formed on the same axis. In addition, the axial orthogonal cross-sectional area of the countersunk hole 121 is formed larger than the axial orthogonal cross-sectional area of the square hole 21.

  Further, the axial depth of the square hole portion 21 is set to ½ or more (for example, ½) of the thickness of the movable hinge plate 120. As a result, the engagement section between the square hole portion 21 and the square shaft fixing portion 132 (non-circular shaft fixing portion; square shaft insertion portion 32 ′) can be made large, and even when a large moment acts on the hinge shaft 130. Further, the caulking portion 132a does not loosen (shave) (see FIGS. 9 and 10). Furthermore, the amount of protrusion of the caulking portion 132a toward the door 220 (see FIG. 1) is also reduced.

  9 and FIG. 10, the thickness of the second washer 42 is equal to or greater than the thickness of the first washer 41 (for example, the thickness of the second washer 42 is 2 times the thickness of the first washer 41). The gap between the hinge plates 10 and 120 can be made relatively large. Therefore, it becomes easy to prevent mutual interference (mutual contact) between the hinge plates 10 and 120 or between the cabinet body 210 and the door body 220. Moreover, the protrusion amount of the hinge shaft head 33 to the outside of the cabinet 200 is relatively small, and the design is improved. Further, since a plurality (for example, two) of the same thickness as the first washer 41 are used for the second washer 42, the cost of the mirror hinge 2 is reduced.

Next, with reference to FIG.9 and FIG.10, the manufacturing method of the mirror hinge 2 is demonstrated.
<Plate position adjustment process> (Fig. 9)
First, the fixed-side hinge plate 10, the movable-side hinge plate 120, and the hinge shaft caulking pin 30 ′ are each processed into a predetermined shape (see FIGS. 3, 8, and 5). Next, the fixed side hinge plate 10 and the movable side hinge plate 120 are overlapped with each other so that the penetrating directions of the round hole part 11, the square hole part 21, and the countersunk hole part 121 coincide with each other.

<Crimping pin insertion process for hinge shaft> (Fig. 9)
The hinge shaft caulking pin 30 ′ is positioned in a clearance fit form in which the square shaft insertion portion 32 ′ is in contact with the square hole portion 21 and the counterbore portion 121, and the round shaft insertion portion 31 is inscribed or close to the round hole portion 11. Insert as you do. At this time, the first washer 41 is provided between the head 33 of the hinge shaft caulking pin 30 ′ and the fixed side hinge plate 10, and the second washer 42 is provided between the fixed side hinge plate 10 and the movable side hinge plate 120. Are intervened.

<Caulking process> (FIG. 10)
The crimping process is performed by pressing the pressing tool for caulking while eccentrically rotating the distal end portion of the rectangular shaft-shaped insertion portion 32 ′ (see FIG. 9). As a result, the rectangular shaft-shaped fixing portion 132 is formed, and the axial orthogonal cross-sectional area is larger than either the square hole portion 21 or the round hole portion 11 and smaller than the head portion 33 so as to fill the countersink portion 121 at the tip portion thereof. A trumpet-shaped (conical frustum) caulking portion 132 a is formed, and the hinge shaft 130 is fixed to the movable hinge plate 120.

  Therefore, the fixed-side hinge plate 10 and the hinge shaft 130 are coupled so as to be relatively rotatable between the round hole portion 11 and the round-shaft insertion portion 31, and the movable-side hinge plate 120 and the hinge shaft 130 are square hole portions. 21 and the countersink part 121 and the square shaft-shaped fixing part 132 (caulking part 132a) are integrally connected so as not to be relatively rotatable.

(Example 3)
FIG. 11 shows a plan view and a front view of a movable hinge plate used for a mirror hinge 3 (cabinet hinge; see FIG. 14) as still another embodiment of the present invention. In the movable-side hinge plate 320 of FIG. 11, arc-shaped hole portions 321 (non-circular hole portions) are formed by penetrating circular holes by two parallel flat surfaces along the axial direction. In addition, the axial orthogonal cross-sectional area of the circular arc hole 321 is formed smaller than the axial orthogonal cross-sectional area of the round hole 11 (circular hole).

  FIG. 12 shows a front view and a bottom view of a hinge pin caulking pin used with the movable hinge plate of FIG. 12 has a circular shaft insertion portion 31 (circular shaft insertion portion) having a circular shape (for example, a circular shape) formed in the circular flange-shaped head 33 side. Are connected to each other through a stepped portion 34 having a reduced diameter on the distal end side in the insertion direction of the round shaft-shaped insertion portion 31, and the circular shaft (circular shaft) is cut and connected by two parallel planes along the axial direction. It has a shaft-like insertion part 32 ″ (non-circular shaft-like insertion part). The circular shaft insertion portion 31 is inserted into the round hole portion 11 of the fixed side hinge plate 10 in the form of a clearance fit that is inscribed in or close to the circular hole portion 11, and the arc shaft insertion portion 32 ″ is the arc hole portion of the movable side hinge plate 320. It is inserted in the form of a clearance fit that is inscribed in or close to 321 (see FIG. 13), and the arc shaft-shaped fixing portion 332 is formed by caulking the tip of the arc shaft-shaped insertion portion 32 ″. It is fixed to the movable hinge plate 320 by the crimping portion 332a (see FIG. 14). At this time, the fixed-side hinge plate 10 and the hinge shaft 330 are connected to each other so as to be relatively rotatable between the round hole portion 11 and the round shaft-shaped insertion portion 31, and the movable-side hinge plate 320 and the hinge shaft 330 are connected to each other through an arc hole. The portion 321 and the arcuate shaft-like fixed portion 332 (caulking portion 332a) are integrally connected so as not to rotate relative to each other.

  As shown in FIG. 13B, the arc shaft-shaped insertion portion 32 ″ of the hinge pin caulking pin 30 ″ and the arc hole portion 321 of the movable side hinge plate 320 are formed in a similar shape. In addition, the two-sided width W ″ of the arcuate shaft-like insertion portion 32 ″ is formed smaller than the two-sided width W of the arcuate hole portion 321 (W ″ <W). When the arc hole 321 is manufactured by pressing (for example, punching) or the like, such as forging (for example, header processing), the above-described clearance fit can be easily and accurately formed.

Next, with reference to FIG.13 and FIG.14, the manufacturing method of the mirror hinge 3 is demonstrated.
<Plate position adjustment process> (FIG. 13)
First, the fixed-side hinge plate 10, the movable-side hinge plate 320, and the hinge shaft caulking pin 30 "are respectively processed into predetermined shapes (see FIGS. 3, 11, and 12). Next, the fixed-side hinge plate 10 and the movable side The hinge plate 320 is overlaid so that the penetrating directions of the round hole portion 11 and the arc hole portion 321 coincide.

<Hinge shaft caulking pin insertion process> (Fig. 13)
Insert the caulking pin 30 ″ for the hinge shaft into the arc hole portion 321 so that the arc shaft-shaped insertion portion 32 ″ is positioned in the circular hole portion 11 and the round shaft-shaped insertion portion 31 is positioned in the form of a clearance fit that is inscribed or close. . At this time, the first washer 41 is provided between the head 33 of the hinge pin caulking pin 30 ″ and the fixed side hinge plate 10, and the second washer 42 is provided between the fixed side hinge plate 10 and the movable side hinge plate 320. Are intervened.

<Caulking process> (FIG. 14)
An arc shaft-shaped fixing portion 332 is formed by caulking the tip of the arc shaft-shaped insertion portion 32 ″ (see FIG. 13), and the hinge is formed by a caulking portion 332a having a circular shape or a polygonal shape (for example, an octagonal shape) when viewed from the bottom. The shaft 330 is fixed to the movable hinge plate 320.

(Example 4)
FIG. 15 shows a plan view and a front view of a movable hinge plate used in a mirror hinge 4 (cabinet hinge; see FIG. 17) as still another embodiment of the present invention. The movable-side hinge plate 420 of FIG. 15 includes an arc-shaped hole 321 (non-circular hole) in which circular holes are cut and connected by two parallel flat surfaces along the axial direction, and a disk-shaped large-diameter hole. The part 421 (enlarged hole part) is continuously formed through the same axis. In addition, the axis orthogonal cross-sectional area of the large-diameter hole 421 is formed larger (larger diameter) than the axis orthogonal cross-sectional area of the arc hole 321.

  Further, the depth in the axial direction of the arc hole portion 321 is set to ½ or more (for example, ½) of the thickness of the movable hinge plate 420. As a result, the engagement section between the arc hole portion 321 and the arc shaft-shaped fixing portion 432 (non-circular shaft-shaped fixing portion; arc shaft-shaped insertion portion 32 ″) can be increased, and even when a large moment acts on the hinge shaft 430. In addition, the caulking portion 432a does not loosen (shave) (see FIGS. 16 and 17), and the amount of protrusion of the caulking portion 432a toward the door 220 (see FIG. 1) is also reduced.

Next, with reference to FIG.16 and FIG.17, the manufacturing method of the mirror hinge 4 is demonstrated.
<Plate position adjustment process> (FIG. 16)
First, each of the fixed side hinge plate 10, the movable side hinge plate 420, and the hinge shaft caulking pin 30 "is processed into a predetermined shape (see FIGS. 3, 15, and 12). The hinge plate 420 is overlapped with the round hole part 11, the arc hole part 321, and the large diameter hole part 421 in the same penetration direction.

<Crimping pin insertion process for hinge shaft> (Fig. 16)
The hinge shaft caulking pin 30 "is in a clearance fit form in which the circular arc-shaped insertion portion 32" is inscribed in or close to the circular hole portion 321 and the large-diameter hole portion 421, respectively. Insert to position. At this time, the first washer 41 is provided between the head 33 of the hinge pin caulking pin 30 ″ and the fixed side hinge plate 10, and the second washer 42 is provided between the fixed side hinge plate 10 and the movable side hinge plate 420. Are intervened.

<Caulking process> (FIG. 17)
A crimping press tool is eccentrically rotated and pressed against the tip end of the arc shaft-shaped insertion portion 32 '' to perform crimping (see FIG. 16). As a result, an arc shaft fixing portion 432 is formed and a large-diameter hole portion is formed. The hinge shaft 430 is fixed to the movable-side hinge plate 420 by a disk-shaped caulking portion 432a formed so as to fill the surface 421.

  Therefore, the fixed-side hinge plate 10 and the hinge shaft 430 are connected to each other so as to be relatively rotatable between the round hole portion 11 and the round shaft-shaped insertion portion 31, and the movable-side hinge plate 420 and the hinge shaft 430 are connected to the arc hole portion. 321 and the large-diameter hole portion 421 and the arcuate shaft-like fixing portion 432 (caulking portion 432a) are integrally connected so as not to be relatively rotatable.

(Modification)
FIG. 18 shows a further modification of the caulking pin for the hinge shaft. The angular shaft insertion portion 32 ′ of the hinge shaft caulking pin 30 ′ shown in FIG. 5 may be formed into a serration along the axial direction of the round bar as shown in FIG. Or may be formed in a spline shape along the axial direction of the round bar.

  In Examples 1 and 2, the cross-sectional shape of the square hole portion 21 and the square-axis insertion portion 32 ′ (square-axis fixing portions 32 and 132) is a square shape, but it is a polygonal shape such as a regular hexagonal shape or a rectangular shape. I just need it. Furthermore, the circular hole portion, the non-circular hole portion, and the enlarged hole portion may be configured in shapes other than those described in the first to fourth embodiments and the modified examples. The same applies to the circular shaft-shaped insertion portion and the non-circular shaft-shaped insertion portion (non-circular shaft-shaped fixing portion). Moreover, although the door body 220 with the mirror 221 was demonstrated, it is not limited to such a door body. In addition, in Examples 2-4 and the modification, the part which has the function which is common in Example 1 was attached | subjected, and description was abbreviate | omitted.

The top view which shows an example of the cabinet using the hinge for cabinets which concerns on this invention, and a partially broken front view. The top view and front view which show an example of the hinge for cabinets which concerns on this invention. The top view and front view of the fixed side hinge plate of FIG. The top view and front view of the movable side hinge plate of FIG. The front view and bottom view of the crimp pin for hinge shafts used for FIG. The front sectional view and bottom view before caulking processing of the hinge for cabinets of FIG. The front sectional view and bottom view after caulking processing of the hinge for cabinets of FIG. The top view and front view of a movable-side hinge plate used for the other hinge for cabinets concerning this invention. The front sectional view and bottom view before caulking processing of the hinge for cabinets using the movable side hinge plate of FIG. The front sectional view and bottom view after caulking processing of the hinge for cabinets using the movable side hinge plate of FIG. The top view and front view of the movable-side hinge plate used for the other hinge for cabinets which concerns on this invention. FIG. 12 is a front view and a bottom view of a hinge pin caulking pin used with the movable-side hinge plate of FIG. 11. FIG. 13 is a front sectional view and a bottom view of a cabinet hinge using the movable side hinge plate of FIG. 11 and the hinge shaft caulking pin of FIG. 12 before caulking. The front sectional view and bottom view after caulking processing of the hinge for cabinets using the movable side hinge plate of FIG. 11 and the caulking pin for hinge shafts of FIG. The top view and front view of the movable-side hinge plate used for the other hinge for cabinets which concerns on this invention. FIG. 16 is a front sectional view and a bottom view of a cabinet hinge using the movable side hinge plate of FIG. 15 and the hinge shaft caulking pin of FIG. 12 before caulking. The front sectional view and bottom view after crimping of the hinge for cabinets using the movable side hinge plate of FIG. 15 and the hinge pin caulking pin of FIG. The bottom view which shows the further modification of the crimping pin for hinge shafts.

Explanation of symbols

1, 2 Mirror hinge (cabinet hinge)
10 Fixed side hinge plate 11 Round hole (circular hole)
20,120 Movable side hinge plate 21 Square hole (non-circular hole)
121 Countersink (enlarged hole)
30, 130 Hinge shaft 31 Round shaft insertion part (circular shaft insertion part)
32,132 Square shaft fixing part (non-circular shaft fixing part)
32a, 132a Caulking portion 33 Head 34 Stepped portion 30 'Hinged shaft caulking pin 32' Square shaft insertion portion (non-circular shaft insertion portion)
41 First washer 42 Second washer 200 Cabinet 210 Cabinet body 220 Door 221 Mirror

Claims (6)

A fixed-side hinge plate that is scheduled to be fixed to a cabinet body that accommodates an object to be accommodated, and in which a circular hole is formed;
A movable side hinge plate that is scheduled to be fixed to a door body that can be opened and closed with respect to the cabinet body, and that has a polygonal square hole section that is smaller in cross section than the circular hole.
A circular shaft-shaped insertion portion formed on the head side and inserted into the circular hole portion of the fixed-side hinge plate, and a square hole of the movable-side hinge plate connected to the distal end side in the insertion direction of the circular shaft-shaped insertion portion A single hinge shaft having a polygonal cross-sectional angular axis fixed portion fixed to the movable side hinge plate by caulking applied to the tip after being inserted into the portion,
A hinge shaft caulking pin having a polygonal cross-section angular shaft insertion portion connected via a stepped portion to the distal end side in the insertion direction of the circular shaft insertion portion, when viewed from the insertion direction, the angular axis insertion portion And the chamfering radius for rounding the corner of the corner-shaped insertion portion is rounded at the corner of the corner of the corner hole. Is formed larger than the chamfer radius for attaching, and is inserted in the form of a clearance fit inscribed in or close to the square hole portion, and by applying a caulking process to the distal end portion of the angular shaft insertion portion , The angular shaft-shaped fixing portion is formed in a form including a caulking portion having an axial orthogonal cross-sectional area larger than any of the square hole portion and the circular hole portion at the tip portion and smaller than the head portion, and constitutes the hinge shaft And
The fixed-side hinge plate and the hinge shaft are connected so as to be relatively rotatable between the circular hole portion and the circular shaft-shaped insertion portion, while the movable-side hinge plate and the hinge shaft are connected to the square hole portion and the corner shaft. A hinge for a cabinet, which is integrally connected to a shaft-like fixed portion so as not to be relatively rotatable. A fixed-side hinge plate that is scheduled to be fixed to a cabinet body that accommodates an object to be accommodated, and in which a circular hole is formed;
It is scheduled to be fixed to a door body that can be opened and closed with respect to the cabinet body, and has a polygonal square hole section with a smaller axial orthogonal cross-sectional area than the circular hole part, and an axial orthogonal disconnection from the square hole part. A movable side hinge plate in which an enlarged hole portion having a large area is continuously formed on the same axis;
A circular shaft-shaped insertion portion formed on the head side and inserted into the circular hole portion of the fixed-side hinge plate, and a square hole of the movable-side hinge plate connected to the distal end side in the insertion direction of the circular shaft-shaped insertion portion And an angular axis fixing portion having a polygonal cross section that is fixed by filling at least the expanding hole portion of the movable-side hinge plate by caulking applied to the tip portion after being inserted into the enlarged hole portion via the portion. A single hinge shaft, and
A hinge shaft caulking pin having a polygonal cross-section angular shaft insertion portion connected via a stepped portion to the distal end side in the insertion direction of the circular shaft insertion portion, when viewed from the insertion direction, the angular axis insertion portion And the chamfering radius for rounding the corner of the corner-shaped insertion portion is rounded at the corner of the corner of the corner hole. Is formed larger than the chamfer radius for attaching, and is inserted in the form of a clearance fit inscribed in or close to the square hole portion, and by applying a caulking process to the distal end portion of the angular shaft insertion portion , The angular shaft-shaped fixing portion is formed in a form including a caulking portion having an axial orthogonal cross-sectional area larger than any of the square hole portion and the circular hole portion at the tip portion and smaller than the head portion, and constitutes the hinge shaft And
The fixed-side hinge plate and the hinge shaft are connected so as to be relatively rotatable between the circular hole portion and the circular shaft-shaped insertion portion, while the movable-side hinge plate and the hinge shaft are connected to the square hole portion and the enlarged portion. A hinge for a cabinet, which is integrally connected so as not to be relatively rotatable between a hole and a rectangular shaft-shaped fixed portion. A first washer and a second washer into which the hinge shaft is inserted are interposed between the head of the hinge shaft and the fixed hinge plate and between the fixed hinge plate and the movable hinge plate, respectively. Dressed,
Each of these washers is made of a material different from the material of the fixed side hinge plate,
The hinge for cabinets of Claim 1 or 2 with which the thickness of said 2nd washer is set more than the thickness of 1st washer. A pair of cabinet hinges according to any one of claims 1 to 3,
Among the hinges for one of the cabinets, the fixed side hinge plate is attached to the upper edge of the cabinet body, and the movable side hinge plate is attached to the upper edge of the door body,
Among the hinges for the other cabinet, the fixed side hinge plate is attached to the lower edge of the cabinet body, and the movable side hinge plate is attached to the lower edge of the door body,
The cabinet is characterized in that the door body constitutes a lid that can be rotated and opened around the hinge shaft with respect to the cabinet body in order to put in and out the object. It is scheduled to be fixed to the cabinet main body that accommodates the objects to be stored, and is fixed to the fixed-side hinge plate through which the circular hole is formed and the door body that can be opened and closed with respect to the cabinet main body. A plate that overlaps a movable-side hinge plate in which a polygonal rectangular hole having a smaller cross-sectional area perpendicular to the axis than the circular hole is formed so that the through-holes of the circular hole and the rectangular hole coincide with each other. Position adjustment process;
A single hinge shaft caulking pin having a circular shaft-shaped insertion portion formed on the head side and a polygonal cross-sectional angular shaft-shaped insertion portion connected to the distal end side in the insertion direction of the circular shaft-shaped insertion portion, A chamfer radius for rounding corners of the corners of the angular axis insertion portion, as viewed from the insertion direction, the width of the two sides of the angular axis insertion portion is smaller than the width of the two sides of the square hole portion. Is formed to be larger than a chamfer radius for rounding the corner of the corner hole portion, and the angular axis insertion portion is positioned in a clearance fit form inscribed or close to the corner hole portion. A hinge pin caulking pin insertion step for inserting the circular shaft insertion portion so that the circular shaft insertion portion is located in the inscribed or close contact form in the circular hole portion when viewed from the insertion direction,
The crimping process is performed on the distal end portion of the angular shaft-shaped insertion portion, and the crimping portion having an axial orthogonal cross-sectional area that is larger than any of the square hole portion and the circular hole portion and smaller than the head portion at the distal end portion, and wherein forming the movable fixed square shaft-shaped fixing portion to the hinge plate, a crimping step forming the caulking pin for the hinge axis and the hinge axis,
The manufacturing method of the hinge for cabinets characterized by including. It is scheduled to be fixed to the cabinet main body that accommodates the objects to be stored, and is fixed to the fixed-side hinge plate through which the circular hole is formed and the door body that can be opened and closed with respect to the cabinet main body. A movable side in which a polygonal rectangular hole having a smaller cross-sectional area than the circular hole and an enlarged hole having a larger cross-sectional area than the rectangular hole are continuously formed on the same axis. A plate position adjusting step of superimposing the hinge plate with the circular hole portion, the square hole portion, and the enlarged hole portion being aligned with each other in a penetrating direction;
A single hinge shaft caulking pin having a circular shaft-shaped insertion portion formed on the head side and a polygonal cross-sectional angular shaft-shaped insertion portion connected to the distal end side in the insertion direction of the circular shaft-shaped insertion portion, A chamfer radius for rounding corners of the corners of the angular axis insertion portion, as viewed from the insertion direction, the width of the two sides of the angular axis insertion portion is smaller than the width of the two sides of the square hole portion. Is formed to be larger than a chamfer radius for rounding the corner of the corner hole portion, and the angular axis insertion portion is positioned in a clearance fit form inscribed or close to the corner hole portion. A hinge pin caulking pin insertion step for inserting the circular shaft insertion portion so that the circular shaft insertion portion is located in the inscribed or close contact form in the circular hole portion when viewed from the insertion direction,
The crimping process is performed on the distal end portion of the angular shaft-shaped insertion portion, and the crimping portion having an axial orthogonal cross-sectional area that is larger than any of the square hole portion and the circular hole portion and smaller than the head portion at the distal end portion, And forming an angular shaft-shaped fixed portion that is fixed by filling an enlarged hole portion of the movable-side hinge plate, and a crimping step of using the hinge shaft caulking pin as a hinge shaft;
The manufacturing method of the hinge for cabinets characterized by including.

Images