JPH0561373U - Hinge for enclosure door - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide a hinge for connecting a door and a housing that does not extend outward from the side surface of the housing to which the door is attached when the door is opened and closed. [Structure] A receiving metal fitting 2 is provided, one end of which is fixed to the housing 1 and the other end of which projects outward from an opening of the housing 1. A first rotating shaft 3 having an axis of symmetry parallel to the opening surface and the side surface of the housing 1 is rotatably attached to the receiving metal fitting 2. The second end whose one end is fixed to the first rotation shaft 3 and whose other end is parallel to the first rotation shaft 3
A link 6 having a rotary shaft 10 of which is rotatably attached is provided. The first gear 9 is concentric with the second rotating shaft 10 and one end of the supporting portion 11 is fixed. The other end of the support portion 11 is fixed to the door 4. At the other end of the bracket 2, there is provided a tooth row portion 5 having the center of rotation of the first rotating shaft 3 as the center of the pitch circle. The tooth part 5 is engaged. When the door 4 is opened, its rotation center is moved toward the center of the opening surface of the housing 1.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a housing door hinge, and more particularly to a housing door hinge that is attached to a housing so that one door rotates about an axis.

[0002]

[Prior Art]

 FIG. 4 (A) is an explanatory view of the state of opening and closing the door when the door is attached to the housing through the conventional hinge for the housing door of this type, and FIG. 4 (B) is a conventional illustration different from FIG. It is explanatory drawing which shows the state of opening and closing of a door when a door is attached to the housing by the hinge for this housing door. Both FIG. 4 (A) and FIG. 4 (B) show a state in which the housing and the door are viewed from above. In FIG. 4 (A), the hinge for the housing door has a metal fitting 2A having one end fixed to the housing 1, and a rotary shaft 3A having a symmetry axis perpendicular to the paper surface near the other end of the metal fitting around the symmetry axis. The rotary shaft 3A is rotatably attached, and the support portion 11A has one end fixed to the rotary shaft 3A and the other end fixed to the door 4.

In FIG. 4A, the rotary shaft 3A attached to the receiving metal fitting 2A slightly protrudes outward from the opening of the housing 1 near the left side surface of the housing 1. When the door 4 is closed with respect to the housing 1, the left side surface of the door and the left side surface of the housing 1 are substantially flush with each other, but the door 4 is rotated clockwise about the rotation axis 3A. Then, the vicinity of the left end of the door 4 protrudes to the left from the left side surface of the housing 1.

In FIG. 4 (B), the hinge for the housing door has a receiving end having one end fixed to the housing 1 and the other end protruding outwardly orthogonal to the opening surface of the housing 1 as compared with FIG. 4 (A). The metal fitting 2B, a rotary shaft 3B which has a symmetry axis perpendicular to the plane of the paper, and is rotatably mounted on the other end of the receiving metal fitting 2B. One end of the rotary shaft 3B is attached to the door 4 and the other. It is composed of a support portion 11A having fixed ends.

In FIG. 4B, the rotary shaft 3 B is provided on the opposite side of the housing 1 with respect to the door 4.

[0006]

[Problems to be solved by the device]

 When the door attached to the housing 1 is opened by the conventional hinge for housing door shown in FIG. 4 (A), one end of the door 4 protrudes leftward from the left side surface of the housing 1. Therefore, when the housing door hinge shown in FIG. 4 (A) is used, there is a disadvantage that another housing or the like cannot be adjacent to the left side of the housing. Further, in the hinge for the housing door shown in FIG. 4B, it is necessary to project the portion of the rotating shaft 3B on the side opposite to the housing 1 with respect to the door 4, that is, outside the door. If the hinge for the housing door shown in FIG. 4 (B) is used, when the door is opened, the left part of the housing does not project leftward from the left side surface of the housing 1, but the door 4 with respect to the housing 1 When closed, the tip of the receiving metal fitting 2B projects outward from the door 4, so that there is a risk that a human body may come into contact with this projection and be damaged.

[0007]

[Means for Solving the Problems]

 The hinge for the housing door of the first invention is a receiving metal fitting having one end to be fixed near the opening of the housing and the other end which should protrude outward and forward from the opening of the housing, and the other receiving metal fitting. A first portion rotatably attached to the receiving metal fitting around a straight line parallel to the longitudinal direction of the axis of rotation of the door to be attached to the casing at a portion located outside the opening of the casing near the end. Rotating shaft, a rod-like link whose one end side is fixed to the first rotating shaft, and a rotatable center line parallel to the rotating center line of the first rotating shaft on the other end side of the link. The attached second rotating shaft, the first gear that rotates integrally with the second rotating shaft, and the other end that should be fixed to the inside of the door are fixed to the second rotating shaft. The supporting portion and the rotating shaft located between the first and second rotating shafts. A third rotation shaft rotatably attached to the link such that the rotation center line is parallel to the rotation center line of the second rotation shaft, and the first rotation shaft fixed to the third rotation shaft. Toothed gear that engages with the second gear and the second gear that engages with the second gear and the rotation center line of the first rotation shaft that is provided near the other end of the bracket is the center of the pitch circle. And a section.

[0008]

【Example】

 FIG. 1 is a perspective view showing an embodiment of the present invention, showing a state in which an opening of a housing is closed by a door.

FIG. 2 is a perspective view showing a state in which the door is rotated 90 degrees clockwise as viewed from above from the state of FIG. The hinge for the housing door shown in FIG. 1 has a bracket 2 having one end fixed to the housing 1 and the other end protruding toward the door 4 side from the opening surface of the housing 1. At the other end of the bracket 2, there is provided a tooth row 5 with the center of rotation of the first rotating shaft 3 as the center of the pitch circle. The link 6 has a gear 7 in the center that meshes with the tooth row section 5 and rotates about a third rotation shaft 8, one end of which is fixed to the first rotation shaft 3 and a first rotation with respect to the bracket 2 Rotate around axis 3. The door 4 fixes a first gear 9 that meshes with the second gear 7 via a support portion 11 about the rotation axis. The second rotating shaft 10 fixed to the gear 9 is rotatably attached to the other end of the link 6. FIG. 2 shows a state in which the door 4 shown in FIG. 1 is opened. The process in which the door changes from the state of FIG. 1 to the state of FIG. 2 will be described with reference to FIGS. 3 (A) to 3 (C).

The symmetry axis of the first rotating shaft 3 is parallel to the opening surface of the housing 1 and is parallel to the vertical edge formed by the opening surface and the side surface of the housing 1, and the first rotating shaft 3 is It is attached to the bracket 2 rotatably around the axis of symmetry described above.

One end of a link 6 is fixed to the first rotation shaft 3, and the other end of the link 6 is rotatably provided around a symmetry axis parallel to the symmetry axis of the first rotation shaft 3 so as to be rotatable. Is attached to the rotary shaft 10.

A first gear 9 is concentrically fixed to the second rotating shaft 10, and the other end of a support 11 having one end fixed to the inside of the door 4 is fixed. A third rotating shaft 8 is attached to the link 6 near the middle of the first rotating shaft 3 and the second rotating shaft 10 so as to be rotatable about an axis parallel to the second rotating shaft 10.

A first gear 9 and a second gear 7 that engages with the tooth row 5 are fixed to the third rotating shaft 8.

The hinge for the housing door of the present invention is the above-mentioned receiving metal fitting 2, the first rotating shaft 3, the link 6, the tooth row portion 5, the second rotating shaft 10, the first gear 9, the third rotating shaft. 8, the second gear 7 and the supporting portion 11.

FIG. 3A shows a state in which the door 4 attached to the housing 11 by the hinge for the housing door of FIG. 1 closes the opening surface of the housing 1 as viewed from above the housing 1 and the door 4. It is an explanatory diagram.

FIG. 3 (B) is an explanatory view showing a state in which the door 4 shown in FIG. 3 (A) is rotated around the second rotary shaft 10 by 45 degrees clockwise when viewed from above. 3C is an explanatory diagram showing a state when the door 4 in the state of FIG. 3B is further rotated by 45 degrees.

When the door 4 is rotated clockwise around the second rotation shaft 10 when viewed from above, the first gear 9 also rotates in the same direction, and the second gear 7 rotates counterclockwise. .. Since the second toothed gear 7 rotates in the counterclockwise direction while engaging with the tooth row portion 5, the link 6 rotates in the counterclockwise direction around the first rotation shaft 3. Therefore, as the door 4 rotates clockwise from the state of FIG. 3 (A) to the state of FIG. 3 (C), the entire door 4 moves to the right in the figure with respect to the housing 1, so that By appropriately setting the shape and size of the housing door hinge described above with respect to the size, when the door 4 is opened relative to the housing 1 as described above, or vice versa, the housing 1 is closed. It is possible to adopt a structure in which a part of the door 4 does not protrude to the left of the left side surface of the.

[0018]

[Effect of the device]

 As described above, by using the hinge for the housing door of the present invention to attach the door to the housing, the end surface of the door does not protrude outside the side surface of the housing when the door is opened and closed, so there is a gap in the side surface of the housing. Since other casings can be arranged adjacent to each other without providing them, there is an effect that such casings can be arranged spatially efficiently.

Further, since the hinge for the housing door of the present invention does not project to the outside of the door, there is an effect that a human body does not come into contact with such a hinge and may be injured.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of a hinge for a housing door of the present invention.

FIG. 2 is a perspective view showing a case where the door is rotated 90 degrees from the state of FIG.

FIG. 3 is an explanatory view showing a state in which the door attached by the housing door hinge shown in FIG. 1 rotates.

FIG. 4 is an explanatory view showing an example of a conventional hinge for a housing door of this type.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Housing 2 Receiving metal fitting 3 1st rotating shaft 4 Door 5 Tooth row 6 Link 7 2nd gear 8 3rd rotating shaft 9 1st gear 10 2nd rotating shaft 11 Supporting part

Claims (1)

[Scope of utility model registration request] 1. A receiving metal fitting having one end to be fixed near an opening of the housing and another end to be projected forward and outward from the opening of the housing, and an opening of the housing near the other end of the receiving metal. A first rotation shaft rotatably attached to the receiving bracket around a straight line parallel to the longitudinal direction of the rotation axis of the door to be attached to the housing in a portion located outside the portion; A rod-like link whose one end side is fixed to the rotating shaft of the second rotating shaft, and a second rotating shaft rotatably attached to the other end side of the link about a rotation center line parallel to the rotation center line of the first rotating shaft. A first gear that rotates integrally with the second rotation shaft, and a support portion having one end fixed to the second rotation shaft and the other end that should be fixed inside the door.
A third rotation located between the first and second rotation shafts and rotatably attached to the link such that the rotation center line of the rotation shaft is parallel to the rotation center line of the second rotation shaft. A shaft, a second gear that engages with the first gear fixed to the third rotating shaft, and a rotation center line of the first rotating shaft provided near the other end of the bracket. A hinge for a housing door, which has a tooth row portion that engages with the second gear at the center of the pitch circle.