JPH0650627Y2 - Hinge - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement of a hinge used for a door of a box for storing electric equipment.

[0002]

2. Description of the Related Art The hinge as described above is one in which two hinge fittings are pivotally attached to each other by hinge pins so that the hinge pins are fitted with an E ring to prevent the hinge pins from falling off. Things were normal. However, in such a conventional hinge, if you want to pull out the hinge pin to remove the door, you have to use a tool to pull out the E-ring, and if you want to assemble it, you must use the tool again to attach the E-ring to the hinge pin. Therefore, there is a drawback that the work is troublesome.

[0003]

The present invention has been completed to solve the above-mentioned conventional problems and provide a hinge that can be disassembled and assembled without using a tool.

[0004]

DISCLOSURE OF THE INVENTION In order to solve the above problems, the present invention has an annular groove formed in a portion slightly apart from the tip end surface of a hinge pin and has a U-shaped cross section and a parallel plate. Pin bushes each having a fitting notch in each part, and one fitting notch fitted in the above-mentioned annular groove,
The other fitting notch is attached to the hinge pin in a state of being elastically engaged with the tip end surface of the hinge pin.

[0005]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in more detail with reference to the embodiments shown in the drawings. In FIG. 1, 1 is a pair of hinge fittings 2,
3 is a hinge pin for pivotally mounting the open / close portion 3 and has an annular groove 5 formed at a portion slightly separated from the front end surface 4 thereof as shown in an enlarged view in FIG. Further, it is preferable that the tip end portion of the hinge pin 1 is provided with a taper or a radius as shown in FIG.

A pin bush 6 made of an elastic material such as metal or resin is fitted in the annular groove 5. 3 and 4
As shown in enlarged form, the pin bush 6 has a U-shaped cross section, and the upper and lower parallel plate portions 7 and 7 are provided with fitting notches 8 and 8, respectively. The fitting notches 8 and 8 are sized so as to fit in the annular groove 5 of the hinge pin 1, and the distance between the upper and lower parallel plate portions 7 and 7 is such that the tip surface 4 of the hinge pin 1 and the annular groove. It is slightly smaller than the distance between 5 and. In the embodiment, the concave portions 9 are formed on both side surfaces so that the pin bush 6 can be easily pulled out from the hinge pin 1 with a fingertip.

As shown in FIG. 1, the pin bush 6 has a notch 8 for fitting one of the parallel plate portions 7 fitted in the annular groove 5 of the hinge pin 1, and a fitting for the other parallel plate portion 7 for fitting. The notch portion 8 is attached to the hinge pin 1 while being elastically engaged with the tip end surface 4 of the hinge pin 1.

[0008]

In the hinge of the present invention thus constructed, the pin bush 6 can be easily removed from the hinge pin 1 simply by pinching the pin bush 6 with a fingertip and pulling it out in the lateral direction.
Similarly, the pin bush 6 can be easily attached by simply pushing it into the annular groove 5 of the hinge pin 1. For this reason, the hinge can be disassembled and assembled without using any tools. Therefore, the work such as removing the door can be easily performed. Needless to say, the pin bush 6 has a function of blocking an external force for pulling out the hinge pin 1 in the vertical direction.

Further, in the hinge of the present invention, the fitting notch portion 8 of one parallel plate portion 7 of the pin bush 6 is fitted into the annular groove 5 of the hinge pin 1, and the fitting notch portion of the other parallel plate portion 7 is fitted. Since 8 is elastically engaged with the tip end surface 4 of the hinge pin 1, the pin bush 6 is pulled toward the tip end side of the annular groove 5 by its own elasticity, and the thickness of the parallel plate portion 7 is No rattling occurs, regardless of the tolerance between the height of the annular groove 5. As described above, if the tip end portion of the hinge pin 1 is provided with a taper or a radius as shown in FIG. 2, the pin bush 6 can be attached more easily.

[0010]

[Effects of the Invention] As described above, unlike the conventional hinge, the hinge of the present invention can be disassembled and assembled without using any tools, so as a hinge that solves the conventional problems, Its practical value is enormous.

[Brief description of drawings]

FIG. 1 is a front view showing an embodiment of the present invention.

FIG. 2 is an enlarged front view showing a tip portion of a hinge pin.

FIG. 3 is a plan view of a pin bush.

FIG. 4 is a front view of a pin bush.

[Explanation of symbols]

 1 Hinge pin 4 Tip surface of hinge pin 5 Annular groove 6 Pin bush 7 Parallel plate of pin bush 8 Notch for fitting

Claims (1)

[Scope of utility model registration request] 1. A pin bush having an annular groove formed in a portion slightly separated from the tip end surface of the hinge pin, and having a U-shaped cross section and a notch for fitting in each of the parallel plate portions. A hinge characterized in that the notch is fitted into the annular groove, and the other fitting notch is attached to the hinge pin in a state of being elastically engaged with the tip end surface of the hinge pin.