JP2010185232A - Hinge device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To mount a door side hinge blade to a door in a single operation without using an attaching screw or the like. <P>SOLUTION: This device 1 has the hinge blade 3 composed of a blade body 31, a pin insertion hole 32, a pair of locking claws 33, 33, a positioning-fixing part 34 and stoppers 35, 35. When the hinge blade 3 is mounted to the door 7, the pair of locking claws 33, 33 of the blade body 31 are locked to both sides of a slit starting edge of a notch 70 (of the door 7) to fit and attach the blade body 31 onto the notch 70. The stoppers 35, 35 of the blade body 31 are brought into pressure contact with the inner surface of the door 7 to mount and fix the hinge blade 3 to the door 7. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a hinge device, and more particularly to a hinge device used for a rack or the like for storing various devices such as electric and electronic devices.

  2. Description of the Related Art Generally, a rack for storing electrical and electronic devices includes a housing and a door, and the door is usually attached to the front of the housing so as to be opened and closed via a plurality of hinges (devices). In this type of rack, a fixed frame is provided on the front of the housing, and the door is bent at one side on the pivot side with respect to the housing at a substantially right angle. The hinge device used for such a rack is A hinge pedestal on the housing side that is attached to the fixed frame (one side portion) of the case, and a hinge on the door side that is attached to the corner portion on one side inside the door corresponding to the hinge pedestal on the case side It is comprised by the blade | wing and the hinge pin which connects these hinge bases and a hinge blade | wing.

  Such a hinge device is described in Patent Document 1. The hinge device (hinge) of this document 1 includes a hinge pedestal on the housing side, hinge blades on the door side, and hinge pins that connect these hinge pedestals and hinge blades. The hinge pedestal on the housing side is composed of a main body having a substantially L-shaped cross section and a pin insertion portion formed in a cylindrical shape at one end thereof. The hinge blade on the door side is continuously arranged on both sides (upper and lower sides) of the pin insertion portion of the hinge on the housing side, and a blade body formed in a planar shape or a substantially L-shaped cross section, and substantially at the center between one end or both ends thereof. (Possibly) and a pin insertion part formed in a pair of cylindrical shapes. In this way, the hinge pedestal on the housing side is installed and fixed at a predetermined position on one side of the fixing frame on the front surface of the housing by welding or mounting screws, and the pin insertion portion is along one side of the fixing frame. Arranged in the vertical direction. Hinge blades on the door side are fixed by welding or mounting screws at the corners on one side of the blade body inside the door by welding or mounting screws, and the pin insertion part is vertically oriented along one side on the inside of the door It is arranged toward. The hinge pin is a rotating shaft of the hinge device, and is made of a bar material having a length that can be inserted into each pin insertion portion of the hinge base and the hinge blade, has a flange at the upper end, and has a groove formed around the lower end side. An E-ring is fitted in the lever groove. When attaching the door to the housing, align the door with the fixed frame on the front of the housing, and combine the hinge base on the housing side and the hinge blade on the door side so that each pin insertion part communicates. A hinge pin is inserted into the insertion portion from above, and an E-ring is fitted into a groove at the lower end thereof to connect the hinge base on the housing side and the hinge blade on the door side.

JP 2003-166375 A (paragraphs 0002-0004, FIGS. 4 and 5)

  However, in the above-described conventional hinge device, the hinge pedestal on the housing side is attached to one side portion of the fixed frame on the front surface of the housing with welding or mounting screws, and the hinge blade on the door side is attached to the corner portion on one side portion of the door. Since it is attached by welding or attaching screws, there is a problem that the attaching operation of these hinge parts is complicated and not easy. Further, when both the hinge pedestal and the hinge blade are attached with attachment screws, there are problems that a large number of attachment screws are required as a whole, the number of parts is increased, and the cost is increased.

  The present invention solves such a conventional problem. In this type of hinge device, in particular, the installation of the hinge device as a whole is facilitated by simply attaching the hinge blade on the door side without using a mounting screw. In addition, it is an object of the present invention to reduce the number of mounting screws and reduce the cost of the hinge device as a whole.

  In order to achieve the above object, a hinge device of the present invention is attached to one side of a fixed frame of a housing and has a hinge base on the housing side having a cylindrical pin insertion portion and one side of a door. Are attached to the corner portion of the housing corresponding to the hinge pedestal on the housing side, and are inserted into the hinge blades on the door side having a cylindrical pin insertion portion, and the pin insertion portions of the hinge pedestal and the hinge blade, and these hinges A hinge device for connecting a base and a hinge blade to the door so as to be able to open and close the door; and a corner portion of the door, the corner portion extending substantially horizontally from a side edge of the corner portion. Is provided with a substantially U-shaped or U-shaped notch across the side surface and the front side of the corner portion, and the hinge blade on the door side corresponds to the notch on the front side of the corner portion. Notched A blade main body having a front surface-attached portion that can be attached from the outside including the periphery of the portion, and a pair of side surface-attached portions that can be attached from the outside around the edge of the cutout on the side surface of the corner portion; A pin insertion part formed on the inner surface side of the blade body so as to be able to communicate with the pin insertion part of the hinge pedestal between the front surface-adhered part and the side surface-adhered part. A pair of locking claws formed at one end of a pair of side surface adhering portions and engageable on both sides of the notch start end of the notch at the side surface side edge of the corner portion, and on the inner surface side of the blade body A positioning and fixing portion that can be fitted into the notch and can be press-contacted to an edge portion of the notch; and a side surface of the positioning and fixing portion that is tiltable toward the side surface with respect to the edge portion of the notch. Extending outward from the edge of the notch A stopper that is press-contactable to the inner surface of the door, and a pair of locking claws at one end of the blade body are locked to both sides of the notch start end of the notch, and the blade body is fitted onto the notch. The gist is that the stopper of the block is brought into pressure contact with the inner surface of the door, and the hinge blade is attached and fixed to the door.

Moreover, it is preferable that this apparatus employ | adopts the following structures for each part.
(1) The hinge blade on the door side is integrally formed of a synthetic resin material.
(2) The hinge blade on the door side passes through the center in the joining direction of the front surface-attached portion and the side surface-attached portion in the blade body, and extends in the continuous direction of the side surface-attached portion with respect to the front surface-attached portion. A symmetrical structure with the line as the center of symmetry.
(3) The positioning and fixing portion is formed on the inner surface side of the blade body along the edge of the cutout of the corner portion, and an end block that can be pressed against the end edge of the cutout, and the cutout of the cutout A space that is configured by a pair of side blocks that can be pressed against both side edges, and that is surrounded by the end block and the pair of side blocks on the inner surface side of the blade body, is inserted into the pin of the hinge base. The hinge blade pin insertion portion is formed through the pair of side blocks so as to be able to communicate with the pin insertion portion of the hinge base.
(4) The stopper is formed on the side surface of the positioning and fixing portion together with a recess into which the stopper can be fitted, and the stopper is provided to be tiltable at an edge portion of the recess facing the blade body, and the tip thereof is the recess. Protrudes outside.
(5) The hinge pedestal on the housing side has a main body formed in a substantially L-shaped cross section, has a flat plate-like fixing portion, and a protruding portion extending in a substantially right angle direction from one end of the fixing portion, A cylindrical pin insertion portion is formed in parallel with the tip of the projection on the surface opposite to the fixed portion on the tip of the projection.
(6) The hinge pedestal on the housing side is integrally formed of a metal material.
(7) The hinge pedestal on the housing side has a symmetrical structure with an imaginary line passing through the center of the main body in the joining direction of the fixed portion and the protruding portion and extending in the continuous direction of the protruding portion with respect to the fixed portion as a symmetrical center. Eggplant.

  In the hinge device of the present invention, when the hinge blade is attached to the door, the pair of locking claws at one end of the blade body is locked on both sides of the notch start end (of the door), and the blade body is placed on the notch. By fitting and attaching, the stopper of the blade body is pressed against the inner surface of the door and the hinge blade is attached and fixed to the door, so that the hinge blade can be easily attached to the door with one touch. Therefore, according to this hinge device, it is possible to easily attach the hinge blade on the door side without using a mounting screw, to facilitate the installation work of the entire hinge device, and to attach the hinge blade. A mounting screw is unnecessary, the number of parts of the mounting screw can be reduced as a whole hinge device, and cost can be reduced.

The top view which shows the structure of the hinge apparatus in one embodiment of this invention The top view which shows the structure of the hinge base of the apparatus Front view showing the configuration of the hinge base of the device Side view showing configuration of hinge blade of same device Partial enlarged view showing the stopper of the device's hinge blades in particular. Side view showing configuration of hinge pin of same device Partial cross-sectional plan view showing the closed state of the door by the same device Partial cross-sectional plan view showing the open state of the door by the same device

  Next, the best mode for carrying out the present invention will be described with reference to the drawings. FIG. 1 shows a rack for storing electrical, electronic equipment, and other various equipment, and a hinge device used for the rack. As shown in FIG. 1, this type of rack 5 includes a housing 6 and a door 7 as described above, and a fixed frame 61 is provided on the front surface of the housing 6, and the door 7 is pivoted with respect to the housing 6. One side portion of the support side is bent at a substantially right angle, and the hinge device 1 includes a hinge base 2 on the housing side attached to one side portion 62 of the fixed frame 61 on the front surface of the housing 6, and the inside of the door 7. The door-side hinge blade 3 attached to the corner portion 7C on one side corresponding to the hinge-side pedestal 2 on the housing side, and the hinge pin 4 connecting the hinge pedestal 2 and the hinge blade 3 are configured.

  In this hinge device 1, the hinge pedestal 2 on the housing side is integrally formed of zinc die cast or other metal material, and as shown in FIG. 2, the main body 20 is formed in a substantially L-shaped cross section, and a flat plate-like fixing portion 21. And a projecting portion 22 extending in a direction substantially perpendicular to the plane of the fixing portion 21 from one end of the fixing portion 21, and on the side opposite to the fixing portion 21 on the distal end side of the projecting portion 22 serving as one end of the main body 20. A cylindrical pin insertion portion 23 is formed in parallel with the tip of the protrusion 22 on the surface. In this case, as shown in FIG. 3, the fixed portion 21 has a substantially T-shaped planar shape with the other end opposite to the protruding portion 22 projecting in both directions, and is located at one location in the substantial center of the planar shape. A screw hole 210 is formed. Further, an inclined surface 24 is formed from the outer peripheral surface of the cylindrical pin insertion portion 23 to the tip of the protruding portion 22. The inclined surface 24 has a predetermined angle with respect to the protrusion 22 and, as shown in FIG. 7, a rotation restricting stopper that restricts the rotation of one rotation end of the hinge blade 3 to be described later. Become. 2 and 3, continuous portions 25 are formed in a substantially triangular shape between both sides of the projecting portion 22 and both sides of the fixed portion 21, as shown in FIGS. It extends from the outer peripheral surface of the pin insertion portion 23 having a shape to the vicinity of the protruding shape portion on the other end side of the fixing portion 21. With this structure, the entire main body 20 is reinforced. Further, in the case of this hinge pedestal 2, a shielding portion 26 having a substantially L-shaped cross section is provided on the same surface as the pin insertion portion 23 of the projecting portion 22 of the main body 20 with a predetermined space between the pin insertion portion 23. Projecting to substantially the same position as the pin insertion portion 23. In this case, the shielding portion 26 protrudes from the protruding portion 22 and includes a first flat portion 261 parallel to the pin insertion portion 23 and a second flat portion 262 substantially perpendicular to the tip of the flat portion 261. The first flat portion A plane facing the pin insertion portion 23 of 261 is formed in an arc shape along a partial arc surface of the outer peripheral surface of the pin insertion portion 23. In this way, the space between the protruding portion 22 and the pin insertion portion 23 is shielded by the second flat portion 262 of the shielding portion 26, and the pin is inserted into the shielding portion 26 (the first flat portion 261 thereof) on the other surface. A groove 27 having a predetermined interval, width, and depth is formed between the portion 23 and the groove 27 through the other rotating end of the hinge blade 3 described later, as shown in FIG. This is a guide stopper that allows a predetermined range of rotation and restricts further rotation. The hinge pedestal 2 has a symmetrical structure with an imaginary line passing through the center of the main body 20 in the joining direction of the fixed portion 21 and the protruding portion 22 and extending in the continuous direction of the protruding portion 22 with respect to the fixed portion 21 as a symmetrical center. Eggplant.

  In this hinge device 1, the door-side hinge blade 3 has a notch 70 formed in a corner portion 7 </ b> C on one side on the pivotal side of the door 7, as shown in FIG. 1. It is attached. In this case, the notch 70 is formed as the door 7 is manufactured, and the corner portion 7C of the door 7 wraps around the corner portion 7C of the door 7 from the side edge of the side surface in a substantially horizontal direction to form a corner portion 7C. A notch 70 is cut and formed in a substantially U shape or a substantially U shape across the side surface and the front side. The door-side hinge blade 3 is integrally formed of a synthetic resin material such as so-called engineer plastic. The blade body 31 and the blade body 31 have a pin insertion portion 32, a pair of locking claws 33, a positioning fixing portion 34, and a stopper 35. It is configured with.

  As shown in FIG. 4, the blade body 31 includes a front-side attached portion 31 </ b> F that can be attached from the outside including the peripheral portion 701 of the notch 70 </ b> F in the front-side cutout 70 </ b> F of the corner portion 7 </ b> C of the door 7. A pair of side surface adhering portions 31S, which are connected to the front surface adhering portion 31F substantially at right angles, and can be attached to the edge periphery 702, 702 of the notch 70S on the side surface side of the corner portion 7C of the door 7 from the outside. 31S. In this case, the front adherend 31F has a substantially rectangular planar shape on the outer surface, and the inner surface is formed with a pin insertion portion 32, a positioning fixing portion 34, and a stopper 35 as will be described later. The edge portion 311T and the side edge portions 311Y are flat so as to be able to abut on the edge periphery 701 (the end edge periphery 701T (see FIG. 1) and the side edge periphery 701Y, 701Y) of the notch 70F on the front side of the door 7. It is in the shape. On the other hand, the pair of side surface-adhering portions 31S and 31S has a planar shape that is substantially perpendicular to both side edge portions 311Y and 311Y of the front surface-adhering portion 31F.

  The pin insertion portion 32 is formed on the inner surface side of the blade body 31 so as to be able to communicate with the pin insertion portion 23 of the hinge base 2 between the front adherend portion 31F and the pair of side face adherent portions 31S and 31S. The pin insertion portion 32 may be formed in a pair of cylindrical shapes as in the conventional case, but in this embodiment, the pin insertion portion 32 is formed on the inner surface of the blade body 31 together with the positioning fixing portion 34, and is one of the positioning fixing portions 34. The hinge pin 4 is provided as a cylindrical hole so that the part can be inserted. The specific description of the pin insertion portion 32 will be made together with the description of the positioning and fixing portion 34.

  The pair of locking claws 33, 33 is formed at one end of the pair of side surface adhering portions 31S, 31S of the blade body 31 in a substantially L-shaped cross section toward the inner surface direction of each of the side surface adhering portions 31S, 31S. 7 has a shape that can be locked by turning around from the outside to the inside on both sides of the cut start end of the cutout 70 at the side surface side edge of the corner portion 7C.

  As shown in FIGS. 1 and 4, the positioning and fixing portion 34 is formed on the inner surface side of the blade body 31 so as to be able to fit into the notch 70, and is configured to be capable of being pressed against the edge of the notch 70. In this case, the positioning and fixing portion 34 is formed on the inner surface of the blade main body 31 so as to protrude along the edge of the notch 70 of the door 7, that is, the inner surface of the front adherend portion 31 </ b> F (the end edge portion, both side edge portions). Can be press-contacted to the end edge 701T of the notch 70 by projecting at a right angle to the side surface adhering portions 31S and 31S in parallel to the inner side of the pair of side surface adhering portions 31S and 31S. And an end block 341 and a pair of side blocks 342 and 342 that can be pressed against both side edges 701Y and 701Y of the notch 70. The space surrounded by the end block 341 and the pair of side blocks 342 and 342 on the inner surface side of the blade body 31 can be fitted along the outer shape of one end side including the pin insertion portion 23 of the hinge base 2. In addition, a cylindrical hole is formed through each of the pair of side blocks 342 and 342 as a pin insertion portion 32 of the hinge blade 2 so as to be able to communicate with the pin insertion portion 23 of the hinge base 2. .

  The stopper 35 is formed on the side surface of the positioning fixing portion 34 with respect to the edge portion of the notch 70 of the door 7 so as to be tiltable to the side surface side, and extends outward from the side surface with respect to the edge portion of the notch 70. It is provided so that press-contact is possible on the inner surface. In this case, as shown in FIG. 5, the stopper 35 hits both sides of the end block 341 on the side surfaces (side surfaces adjacent to the edge 311 of the blade body 31) of the pair of side blocks 342 and 342 forming the positioning and fixing portion 34. The stopper 35 is formed at two positions together with a recess 36 into which the stopper 35 can be fitted. Each of the recesses 36 and 36 is formed in a concave step shape from the side of the blade body 31 toward the protruding direction of each block 342, 342, 341 between the two sides of the side blocks 342, 342 and the side surface of the end block 341. The stoppers 35 and 35 are each formed in a plate shape and integrally with the edge portions 361 and 361 of the concave portions 36 and 36 facing the blade body 31. Each stopper 35, 35 is formed so that the base end continuous to each recess 36, 36 is thinner than the tip end side and can be tilted in each recess 36, 36, and the tip end side is located outside each recess 36, 36. The front end surface protrudes outward from the side surface of each side block 342, 342 (each side edge of the front-side cutout 70F) and is close to the inner surface of the blade body 31. The stopper 35 is formed so that its width gradually increases from the base end to the tip, and the tip surface is formed in a predetermined arc shape from the inside to the outside.

  The hinge blade 3 passes through the center in the joining direction of the front surface adherence portion 31F and the pair of side surface adherence portions 31S and 31S in the blade body 31, and the side face adherence portions 31S and 31S with respect to the front face adherence portion 31F. A symmetric structure is formed with an imaginary line extending in the continuous direction as the center of symmetry.

  In this hinge device 1, the hinge pin 4 is made of a bar (round bar), and as shown in FIG. 6, the whole is formed into an L shape by bending, and each pin of the hinge base 2 and the hinge blade 3 is inserted. The long shaft portion 41 has a length that can penetrate the portions 23 and 32, and a short shaft portion 42 that is bent in a direction perpendicular to the long shaft portion 41 and has a length shorter than that of the long shaft portion 41. In this case, the tip peripheral surface of the long shaft portion 41 is formed in a tapered shape that gradually increases in diameter from the tip toward the end of the short shaft 42. Further, a corner 401 between the long shaft portion 41 and the short shaft portion 42 is provided with an outer radius 401, and a groove 402 is cut into a semicircular shape on the inner side.

  When attaching the door 7 to the housing 6 with these hinge parts, as shown in FIG. 1, first, one side of the fixed frame 61 on the front surface of the housing 6 (which becomes the pivotal support side of the door 7) has a predetermined position. The hinge pedestal 2 is attached, and the hinge blade 3 is attached to a predetermined position of the corner portion 7C on one side (on the pivotal side corresponding to the hinge pedestal 2 on the housing side) inside the door 7. In this case, in the hinge base 2, the fixing portion 21 is installed at a predetermined position on one side portion of the fixing frame 61 with the protruding portion 22 on the side surface side of the door 7, and the fixing portion 21 is inserted into the screw hole 20 of the fixing portion 21. One mounting screw 28 is screwed through a washer 29 and fastened to the side of the fixed frame 61. Thereby, the pin insertion part 23 of the hinge base 2 is arrange | positioned along the one side part of the fixed frame 61 toward an up-down direction. In the hinge blade 3, as shown in FIG. 4, a pair of locking claws 33, 33 at one end of the blade body 31 are locked to both sides of the notch starting end of the notch 70 of the door 7, and the blade body 31. Each of the blocks, that is, the end block 341 and the pair of side blocks 342 and 342 are fitted into the notch 70 (with a slight pressing), while the blade body 31 is placed on the notch 70, that is, the notch 70. It adheres to the edge periphery 701, 702, 702. At this time, the stoppers 35, 35 of the pair of side blocks 342, 342 are pressed against the edges of the notches 70, and are tilted into the recesses 36, 36 of the side blocks 342, 342, respectively. The blocks 342 and 342 are pushed together with the inner surface side of the door 7. By incorporating this hinge blade 3 (with respect to the notch 70), each block 341, 342, 342 of the blade body 31 is completely fitted along the edge of the notch 70, and the plane of the inner surface edge 311 of the blade body 31 is obtained. Is completely abutted against the edge periphery 701, 702, 702 of the notch 70, the entire hinge blade 3 is positioned and fixed on the notch 70, and at the same time in the notch 70 together with the side blocks 342, 342. Each of the stoppers 35, 35 pushed in is released from the pressing by the edge of the notch 70, and is elastically restored to extend outward from the side of each side block 342, 342 to the edge of the notch 70, It is pressed against the inner surface of the door 7. By the wedge action of these stoppers 35, 35, the hinge blade 3 is prevented from coming off from the notch 70 and is completely attached and fixed. Thereby, the pin insertion part 32 is arrange | positioned toward the up-down direction along one side part inside the door 7. As shown in FIG. After the hinge base 2 is attached to the housing 6 and the hinge blade 3 is attached to the door 7, the door 7 is aligned with the fixed frame 61 on the front surface of the housing 6, and the hinge base 2 and the hinge blade 3 are connected to each other. These pin insertion portions 23 and 32 are combined so that they can communicate with each other, and the hinge pin 4 is inserted into these pin insertion portions 23 and 32 from above to connect the hinge base 2 on the housing side and the hinge blade 3 on the door side. Thereby, the door 7 is coupled to the housing 6 so as to be opened and closed. Refer to FIGS. 7 and 8 for the open / closed state of the door 7. FIG. 7 shows a closed state of the door 7, and FIG. 8 shows an open state of the door 7.

  As described above, in this hinge device 1, in particular, the door-side hinge blade 3 includes the blade body 31, the pin insertion portion 32, the pair of locking claws 33 and 33, and the positioning and fixing as described above. When the hinge blade 3 is attached to the door 7, the pair of locking claws 33, 33 at one end of the blade body 31 are cut into the notch 70 (of the door 7). By engaging the blade main body 31 on the notch 70 and attaching it, the stoppers 35 and 35 of the blade main body 31 are pressed against the inner surface of the door 7 and the hinge blade 3 is attached to the door 7. Since it is attached and fixed, the hinge blade 3 can be easily attached to the door 7 with one touch. Therefore, according to the hinge device 1, the hinge blade 3 on the door side can be easily attached without using a mounting screw, and the attachment work of the hinge device 1 as a whole can be facilitated. 3 is not necessary, and the number of parts of the mounting screws can be reduced as a whole of the hinge device 1 to reduce the cost.

Further, the hinge device 1 has the following advantages.
(1) Since the hinge blade 3 is integrally formed of a synthetic resin material, it can be easily manufactured.
(2) The positioning fixing portion 34 of the hinge blade 3 is formed in a protruding shape along the edge of the notch 70 of the corner portion 7C of the door 7 on the inner surface side of the blade body 31, and the terminal edge 701T of the notch 70 is formed. And a pair of side blocks 342 and 342 that can be pressed against both side edges of the notch 70, and the end block 341 and a pair of paired side blocks on the inner surface side of the blade body 31. The space surrounded by the side blocks 342 and 342 is formed so that the pin insertion portion 23 of the hinge base 2 can be fitted along its outer shape, and the pin insertion portion 32 of the hinge blade 3 is a pair of side blocks 342. , 342 is formed so as to be able to communicate with the pin insertion part 23 of the hinge pedestal 2, so that the structure of each part can be simplified, and the manufacture of the hinge blade 3 can be performed more easily.
(3) The stoppers 35, 35 of the hinge blade 3 are formed on the side surface of the positioning fixing portion 34 together with the recesses 36, 36 into which the stoppers 35, 35 can be fitted. 36, the tip of each stopper 35, 35 is projected to the outside of each recess 36, 36, so that each stopper 35, 35 having a wedge action is provided. It can be formed with a simple structure.
(4) From the shape and structure of the hinge blade 3, the hinge pedestal 2 on the housing side has a main body 20 formed in a substantially L-shaped cross section, a flat plate-shaped fixing portion 21, and a substantially perpendicular direction from one end of the fixing portion 21. A cylindrical pin insertion portion 23 along the tip of the protrusion 22 on the surface opposite to the fixed portion 21 on the tip side of the protrusion 22 serving as one end of the main body 20. Formed in parallel, the hinge base 2 can also be formed in a simple shape and structure.
(5) In this case, since the hinge base 2 is integrally formed of a metal material, it can be manufactured easily.
(6) In this case, the main body 20 has an inclined surface 24 formed from the outer peripheral surface of the cylindrical pin insertion portion 23 to the tip of the protruding portion 22, and the inclined surface 24 is given a predetermined angle with respect to the protruding portion 22. Thus, since the rotation of one rotation end of the hinge blade 3 is restricted, the rotation of the hinge blade 3, that is, the rotation of the door 7 can be restricted within a required rotation range. In addition, since the connecting portion 25 is formed in a substantially triangular shape between the both sides of the protruding portion 22 and the both sides of the fixed portion 21 continuously on the inclined surface 24, the structure of the hinge base 2 is strengthened. be able to.
(7) In this case, the shielding portion 26 having a substantially L-shaped cross section is provided on the same surface as the pin insertion portion 23 of the projecting portion 22 of the main body 20 with a predetermined interval between the pin insertion portion 23 and the pin insertion portion. 23, the space between the projecting portion 22 of the hinge base 2 and the pin insertion portion 23 can be shielded by the shielding portion 26, and the appearance can be improved. Can do.
(8) In this case, a groove 27 is formed between the pin insertion portion 23 and the shielding portion 26 of the main body 20, and the other rotation end of the hinge blade 3 is passed through the groove 27 in a predetermined range of the hinge blade 3. Since the rotation is allowed and the further rotation is restricted, the rotation of the hinge blade 3, that is, the rotation of the door 7 can be restricted within a required rotation range.
(9) The hinge blade 3 passes through the center in the joining direction of the front surface adherence portion 31F and each of the side surface adherence portions 31S, 31S in the blade body 31, and each side surface adhering portion 31S with respect to the front face adherence portion 31F, The hinge base 2 has a symmetrical structure with a virtual line extending in the continuous direction of 31S as the center of symmetry, and the hinge pedestal 2 passes through the center in the joining direction of the fixing portion 21 and the protruding portion 22 in the main body 20 and protrudes 22 against the fixing portion 21. The hinge blade 3 and the hinge pedestal 2 can be reversed and used, and the hinge device 1 is attached to one of the racks 5. It is not limited to a side part, It can respond | correspond to both of right-opening, both of left-opening, or both of upper-opening and lower-opening.

  In the above embodiment, the pin insertion part 32 and the positioning fixing part 34 of the hinge blade 3 are integrated, but these parts may be formed separately. In the case of the positioning and fixing portion 34, the end block 341 and the pair of side blocks 342 and 342 are formed continuously, but these portions may be provided intermittently. Further, the stopper 35 of the hinge blade 3 is formed in a pair with the pair of side blocks 342 and 342. However, the stopper 35 may be provided on the side surface of the end block 341, and further, the end block 341 and each side portion. You may provide in each side of the blocks 342 and 342. Further, although the hinge base 2 is fastened to the fixed frame 61 of the housing 6 with the mounting screw 28, it goes without saying that it may be joined by welding.

DESCRIPTION OF SYMBOLS 1 Hinge apparatus 2 Hinge base 20 Main body 21 Fixing part 210 Screw hole 22 Projection part 23 Pin insertion part 24 Inclined surface (rotation control stopper)
25 connecting portion 26 shielding portion 261 first plane portion 262 second plane portion 27 groove (guide stopper)
28 Mounting screw 29 Washer 3 Hinge blade 31 Blade body 31F Front adherence portion 31S Side adherent portion 311 Edge portion 311T Edge portion 311Y Side edge portion 32 Pin insertion portion 33 Locking claw 34 Positioning fixing portion 341 End block 342 side Block 35 Stopper 36 Recess 4 Hinge pin 41 Long shaft portion 42 Short shaft portion 401 R 402 Groove 5 Rack 6 Housing 61 Fixed frame 7 Door 7C Corner portion 70 Notch 70F Front side notch 70S Side notch 701 Notch Around the edge of the notch 701T Around the edge of the end 701Y Around the edge of the side 702 Around the edge of the notch

Claims (8)

Mounted on one side of the fixed frame of the housing and attached to the hinge base on the housing side having a cylindrical pin insertion portion, and on the corner on one side of the door corresponding to the hinge base on the housing side And a hinge pin on the door side having a cylindrical pin insertion portion, and a hinge pin that is inserted into each pin insertion portion of the hinge base and the hinge blade and connects the hinge base and the hinge blade, and In the hinge device that couples the door to be openable and closable,
A substantially U-shaped or U-shaped notch that runs around the corner portion in the horizontal direction from the side edge portion of the corner portion to the corner portion of the door and straddles the side surface side and the front side of the corner portion. With
The hinge blade on the door side is
Front notch that can be attached to the notch on the front side of the corner part including the periphery of the notch from the outside, and the outer periphery of the notch edge on the side of the corner part. A blade body having a pair of possible side-surface-adhered portions;
A pin insertion part that is formed so as to be able to communicate with the pin insertion part of the hinge base between the front surface adhesion part and the side surface adhesion part on the inner surface side of the blade body;
A pair of locking claws that are formed at one end of the pair of side surface adhering portions of the blade body, and can be locked to both sides of the notch start end of the notch at the side edge of the corner portion;
A positioning and fixing portion formed on the inner surface side of the blade body so as to be able to fit into the notch, and capable of being pressed against the edge of the notch,
A stopper formed on the side surface of the positioning fixing portion with respect to the edge portion of the notch so as to be tiltable to the side surface side, extending outward from the side surface with respect to the edge portion of the notch, and capable of being pressed against the inner surface of the door; ,
With
A pair of locking claws at one end of the blade body is locked to both sides of the cut start end of the cutout, and the blade main body is fitted onto the cutout and attached, whereby the stopper of the block is attached to the inner surface of the door. The hinge blade is attached and fixed to the door.
The hinge apparatus characterized by the above-mentioned.   The hinge device according to claim 1, wherein the door-side hinge blade is integrally formed of a synthetic resin material.   The door side hinge blade passes through the center of the direction of joining of the front and side surface-attached portions in the blade body, and is symmetrical with a virtual line extending in the continuous direction of the side surface-attached portion with respect to the front surface-attached portion. The hinge device according to claim 1, wherein the hinge device has a symmetrical structure as a center.   The positioning and fixing portion is formed on the inner surface side of the blade body along the edge of the notch in the corner portion, and is an end block that can be pressed against the terminal edge of the notch, and both side edges of the notch And a space surrounded by the end block and the pair of side blocks on the inner surface side of the blade body is fitted with a pin insertion portion of the hinge base. The hinge device according to any one of claims 1 to 3, wherein the hinge device is formed so that the pin insertion portion of the hinge blade penetrates the pair of side blocks so as to communicate with the pin insertion portion of the hinge base.   The stopper is formed on the side surface of the positioning and fixing portion together with a concave portion in which the stopper can be fitted, and the stopper is provided to be tiltable at an edge portion of the concave portion facing the blade main body, and its tip portion is located outside the concave portion. The hinge device according to claim 1, wherein the hinge device is protruded.   The hinge pedestal on the housing side has a main body formed in a substantially L-shaped cross section, has a flat plate-like fixing portion, and a protruding portion extending in a substantially right angle direction from one end of the fixing portion, and the protrusion serving as one end of the main body The hinge device according to any one of claims 1 to 5, wherein a cylindrical pin insertion portion is formed in parallel with the tip of the projecting portion on a surface opposite to the fixing portion on the tip side of the portion.   The hinge device according to claim 6, wherein the hinge base on the housing side is integrally formed of a metal material.   The hinge base on the housing side has a symmetrical structure with an imaginary line extending in the continuous direction of the protruding portion with respect to the fixed portion as a center of symmetry passing through the center in the joining direction of the fixed portion and the protruding portion in the main body. 8. The hinge device according to 6 or 7.