JP2015075160A - Electrical equipment storing box - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an electrical equipment storing box capable of preventing irregular sound from being generated when a door body is opened or closed and preventing a hinge pin from being easily pulled off.SOLUTION: A door body 2 closing an opened front surface of a box-like main body is connected to the main body through hinges, the hinge comprises: a hinge pin 50 forming a rotary shaft; a first hinge member 30 fixed to the main body and provided with cylindrical pin insertion portions 32 to cause the hinge pin 50 to be inserted; a second hinge member 40 fixed to the door body 2 and provided with an insertion piece 41 inserting and passing through the hinge pin 50; and a synthetic resin cylindrical member 60 installed at the pin insertion portions 32 and externally fitted to the hinge pin 50. The cylindrical member 60 has engaging portions 65 engaged with the pin insertion portions 32 and a protrusion 66 engaged with the hinge pin.

Description

  The present invention relates to an electric equipment storage box, and more particularly to an electric equipment storage box having a structure in which a door is hinged in an openable manner on an open surface of a main body for storing the electric equipment.

2. Description of the Related Art Conventionally, electrical equipment storage boxes have been widely used which are composed of a main body that stores electrical equipment and a door that closes one surface of the main body that is opened. In such a conventional box for storing electrical equipment, the door body is hinged to the main body so that it can be opened and closed. This hinge structure has hinge pins that serve as hinge opening and closing shafts on both the main body and the door body. The hinge member to be inserted was fixed, both were arranged in a straight line, and the hinge pin was connected to form a hinge so that the door body could be opened and closed.
However, hinges with such a structure may not be able to smoothly insert and remove the metal hinge pins due to the weight of the door and the deformation of the box, and abnormal noise is generated due to sliding between the metals. There was also.
In order to improve this state, the present applicant proposed the structure of Patent Document 1. In Patent Document 1, a lubricating material is coated on a hinge pin or the like in order to smoothly insert and remove the hinge pin.

Japanese Utility Model Publication No. 7-36508

By configuring as shown in Patent Document 1 above, it was possible to easily insert and remove the hinge pin, and it was also possible to suppress the generation of abnormal noise accompanying the opening and closing of the door body.
However, it is difficult to impart durability to the lubricious material, and the function is deteriorated by repeated opening and closing, and there is a case where an abnormal noise is generated each time the door body is opened and closed as in the conventional structure. Further, since the hinge pin may be gradually pulled out by opening and closing the door body, it is necessary to separately provide a retaining piece that prevents the hinge pin from coming off.

  In view of the above problems, an object of the present invention is to provide an electrical equipment storage box that can prevent abnormal noise from being generated when the door is opened and closed, and that is difficult to remove the hinge pin.

In order to solve the above-mentioned problems, the invention of claim 1 has a box-shaped main body that is open on one side and can store electrical equipment, and a door that closes the opening. In a box for storing electric equipment, the side of which is connected to the main body via a hinge so as to be openable and closable, the hinge is a hinge pin that forms a rotating shaft, and a first insertion portion that is fixed to the main body and passes through the hinge pin A first hinge member having a first hinge member, a second hinge member fixed to the door body and having a second insertion portion through which a hinge pin is inserted, and at least one of the first insertion portion and the second insertion portion. And a synthetic resin tubular member fitted on the hinge pin.
According to this configuration, the cylindrical member made of synthetic resin is attached to the insertion portion and fitted onto the hinge pin with respect to at least one of the first hinge member or the second hinge member, so that the hinge pin is directly connected to the hinge member. The area in contact with is reduced. Therefore, even if the hinge pin is rotated by opening and closing the door body, it is difficult for abnormal noise to occur.

According to a second aspect of the present invention, in the configuration of the first aspect, at least one of the first insertion portion and the second insertion portion is a cylindrical body that holds an intermediate portion of the hinge pin, and the cylindrical member is a cylinder. It is characterized by being inserted and arranged in the shape.
According to this configuration, since the cylindrical member is disposed on the cylindrical body formed at the approximate center of the hinge, the main part of the hinge pin is fitted on the cylindrical member. Therefore, the contact part between metals becomes few and generation | occurrence | production of abnormal noise can be reduced favorably.

According to a third aspect of the present invention, in the configuration according to the second aspect, the cylindrical member is formed with a reduced diameter by providing a tapered surface around the tip, while the base has a flange-shaped head having an enlarged diameter. It has the latching | locking part latched to the inserted cylindrical body, It is characterized by the above-mentioned.
According to this configuration, since the tip is reduced in diameter, the cylindrical member can be easily inserted into the cylindrical body, and the flange-shaped head can be prevented from being excessively inserted by contacting the end of the cylindrical member. And since it latches to a cylindrical body after insertion, a cylindrical member does not fall out.

According to a fourth aspect of the present invention, in the configuration of the third aspect, the locking portion is formed on the elastic piece formed on the side surface of the cylindrical member so as to have elasticity in the radial direction, while the cylindrical body is in the middle A notch is formed in the cylindrical body axial direction, and the locking portion is locked to the cylindrical body at the notch.
According to this configuration, since the locking portion is formed on the elastic piece having elasticity in the radial direction, when the cylindrical member is inserted, it is pushed in by the elasticity of the elastic piece even if the locking portion is formed to protrude. Easy to insert. Moreover, after insertion, the latching | locking part latches to a cylindrical body reliably by elastically returning.

According to a fifth aspect of the present invention, in the configuration according to the fourth aspect, the elastic piece is formed by cutting out the side surface of the cylindrical member, and the inner surface of the elastic piece can be brought into contact with a hinge pin inserted into the cylindrical member. And having a protrusion engaging with the hinge pin on the inner surface, and the hinge pin is provided with a recess engaging with the protrusion.
According to this configuration, the hinge pin inserted into the tubular member is engaged with and retained by the tubular member, and the tubular member is retained by being retained by one of the hinge members, so that the hinge pin may fall off. Absent. Therefore, it is not necessary to separately provide a retaining means for preventing the hinge pin from coming off.

  According to the present invention, the cylindrical member made of synthetic resin is attached to the insertion portion and fitted onto the hinge pin with respect to at least one of the first hinge member or the second hinge member. The area in contact with is reduced. Therefore, even if the hinge pin is rotated by opening and closing the door body, it is difficult to generate abnormal noise due to sliding, and smooth opening and closing is possible.

It is a perspective view which shows an example of the electric equipment storage box which concerns on this invention. It is an A section enlarged view. It is the A section enlarged view which decomposed | disassembled the hinge. It is an exploded view of a hinge. It is the perspective view which extracted only the hinge, and has shown the state which closed the door body. It is a longitudinal cross-sectional view of a cylinder member. It is a longitudinal cross-sectional view of a hinge.

  DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments embodying the present invention will be described below in detail with reference to the drawings. FIG. 1 is a perspective view showing an example of a box for storing electric equipment according to the present invention, a box-shaped main body 1 for assembling and storing electric equipment, and a door 2 for closing the front of the opened main body 1. The right side portion of the door body 2 is connected to the main body 1 via a hinge 3 and can be opened and closed.

2 is an enlarged view of a portion A in FIG. 1, and FIG. 3 is an enlarged view of a portion A in which the hinge 3 is further disassembled. As shown in FIGS. 2 and 3, the hinge 3 includes a first hinge member 30 on the main body 1 side, a second hinge member 40 on the door body 2 side, a hinge pin 50, and a tubular member 60, and the first hinge member 30. The second hinge member 40 and the hinge pin 50 are made of metal, and the cylindrical member 60 is made of a synthetic resin such as polyacetal (POM).
The first hinge member 30 is welded to the side surface of the draining frame 1 a of the main body 1, the second hinge member 40 is welded to the inside of the side surface of the door plate 2, and the hinge 3 is placed at two positions on the side of the door body 2. It is attached.

  4 and 5 show the hinge 3 alone, FIG. 4 shows an exploded view, FIG. 5 shows an integrated state, and shows a configuration in which the door body 2 is closed. The first hinge member 30 has a main body attachment portion 31 that is formed flat and is welded to the main body 1, and a cylindrical pin insertion portion 32 into which the hinge pin 50 and the cylindrical member 60 are inserted. The pin insertion portion 32 has a gap 33 formed in the middle, and is divided into two in the length direction (vertical direction in the figure).

The second hinge member 40 has a pair of insertion pieces 41 having holes 41a through which the hinge pins 50 are inserted. The insertion pieces 41 are formed in a plate shape and are arranged in parallel with each other via the connection piece 42. Are integrally formed. Further, a door body attachment portion 43 for welding to the door body 2 is extended from the insertion piece 41.
The insertion pieces 41 are arranged at intervals corresponding to the length of the pin insertion portion 32 of the first hinge member 30, and when inserting the hinge pin 50, the pin insertion portion 32 is moved from the front and back in the length direction (up and down in the drawing). The center line of the pin insertion part 32 and the insertion piece 41 is arrange | positioned on a straight line on both sides.

  The hinge pin 50 has a shaft portion 51 having a uniform diameter. As shown in FIG. 4, the lower tip has a tapered surface 52 and is reduced in diameter toward the tip. On the other hand, the upper base portion has a flange-shaped head portion 53 having an enlarged diameter, and a groove 54 is provided in the middle portion to form a recess 54.

The cylindrical member 60 has a body portion 61 having a hole 61a through which the hinge pin 50 is inserted, and a lower end of the cylindrical member 60 is provided with a tapered surface 62 and is reduced in diameter toward the end. On the other hand, a flange-shaped head 63 having an enlarged diameter is formed on the upper base. Further, an elastic piece 64 formed by cutting out the body portion 61 is provided at an intermediate portion of the body portion 61, and an engaging portion 65 that engages with the pin insertion portion 32 is formed in the elastic piece 64.
The elastic piece 64 is formed in parallel to the central axis M (shown in FIG. 6) of the cylindrical member 60 and the tip thereof is directed toward the base of the cylindrical member 60, and the locking portion 65 projects the tip of the elastic piece 64 to the side. Is formed. The locking portion 65 is locked to the pin insertion portion 32 in the gap 33.

FIG. 6 shows a longitudinal sectional view of the cylindrical member 60, and shows the elastic piece 64 in cross section. As shown in FIG. 6, the elastic piece 64 has a tapered surface formed from the base portion toward the locking portion 65 at the tip and gradually protrudes to facilitate insertion of the cylindrical member 60 into the pin insertion portion 32. .
A protrusion 66 is formed on the inner side of the tip of the elastic piece 64. The protrusion 66 is formed so as to protrude inward with respect to the formation surface of the hole 61a, and is formed to engage with the inserted hinge pin 50.

The hinge member configured as described above is integrated as follows. That is, the door body 2 is connected to the main body 1. First, as described above, the first hinge member 30 is welded to a predetermined portion of the main body 1, and the second hinge member 40 is welded to a predetermined portion of the door body 2.
Next, the cylindrical member 60 is inserted into the pin insertion portion 32 of the first hinge member 30. This will be described below with reference to FIG. The cylindrical member 60 is inserted from above, and the elastic piece 64 projecting sideways is elastically deformed inward and can be smoothly inserted when coming into contact with the pin insertion portion 32. The insertion is completed when the head 63 comes into contact with the pin insertion portion 32 by the insertion. In this state, the distal end locking portion 65 of the elastic piece 64 is exposed to the gap 33 and locked to the end portion of the pin insertion portion 32, so that the tubular member 60 is locked and prevented from coming off.

After the cylindrical member 60 is assembled, the hinge pin 50 is inserted. Therefore, the insertion piece 41 of the 2nd hinge member 40 is arrange | positioned so that the pin insertion part 32 may be clamped. That is, the right side portion of the door body 2 is arranged along the draining frame 1 a of the main body 1. Thus, the shaft of the pin insertion part 32 and the hole 41a of the insertion piece 41 are arranged in a straight line.
In this state, the hinge pin 50 is inserted from above, and the first hinge member 30 and the second hinge member 40 are connected and integrated as shown in FIG.

  FIG. 7 shows a sectional view of the hinge 3 thus integrated, and a longitudinal sectional view along the center of the hinge pin 50. The inserted hinge pin 50 is held by engaging the projection 66 of the tubular member 0 with the recess 54 formed in the intermediate portion.

Thus, since the synthetic resin tube member 60 is mounted on the pin insertion portion 32 of the first hinge member 30 and is externally fitted to the hinge pin 50, the hinge pin 50 directly contacts the first hinge member 30. There is no. However, since the tubular member 60 is disposed in the pin insertion portion 32 that is disposed in the center of the hinge 3 and has a large contact area with the hinge pin 50, the tubular member 60 is fitted on the main portion of the hinge pin 50. The contact between the metals of the hinge 3 is small, and the generation of noise due to the opening and closing of the door body 2 can be reduced satisfactorily.
Moreover, since the tip of the cylindrical member 60 is reduced in diameter, the cylindrical member 60 can be easily inserted into the pin insertion portion 32 formed in a cylindrical shape, and the head portion 63 is in contact with the cylindrical body to prevent excessive insertion. In addition, since the cylindrical member 60 is locked to the pin insertion portion 32 after insertion, the cylindrical member 60 does not fall off.
Furthermore, since the locking part 65 is formed on the elastic piece 64 having elasticity in the radial direction, when the cylindrical member 60 is inserted, the elasticity of the elastic piece 64 is easy even if the locking part 65 is formed to protrude. After the insertion, the elastic piece 64 is elastically restored to be securely locked.
Further, since the inserted hinge pin 50 is held by being engaged with the cylindrical member 60 and the cylindrical member 60 is held by being locked to the first hinge member 30, the hinge pin 50 will not fall off. There is no need to separately provide a retaining means for preventing the hinge pin 50 from coming off.
In addition, since the head 63 of the tubular member 60 is disposed and clamped between the upper end of the pin insertion portion 32 and the upper insertion piece 41 of the second hinge member 40, the first hinge member 30 and the second hinge member Contact with 40 can be eliminated, the door body 2 can be opened and closed more smoothly, and it is also effective in preventing the generation of abnormal noise.

The cylindrical member 60 is disposed only on the first hinge member 30, but may be disposed over the second hinge member 40. Moreover, although the insertion piece 41 which penetrates the hinge pin 50 formed in the 2nd hinge member 40 by the side of the door body 2 was formed in plate shape, you may form in a cylinder shape.
Further, the first hinge member 30 including the cylindrical pin insertion portion 32 may be attached to the door body 2 by reversing the arrangement of the first hinge member 30 and the second hinge member 40.

  1 .... Main body 2 .... Door 3 .... Hinge 30 ... First hinge member 32 ... Pin insertion part (first insertion part) 33 ... Gap (notch) 40 ... 2 hinge members, 41 .. insertion piece (second insertion portion), 50 .. hinge pin, 54 .. recess, 60 .. cylindrical member, 61 .. trunk, 63 .. head, 64 .. elastic piece , 65 .. Locking part, 66 .. Projection.

Claims (5)

It has a box-shaped main body that is open on one side and can store electrical equipment, and a door body that closes the opening surface, and one side of the door body can be opened and closed to the main body via a hinge. In the box for storing electrical equipment connected to the
The hinge includes a hinge pin that forms a rotation shaft, a first hinge member that is fixed to the main body and includes a first insertion portion that passes through the hinge pin, and is fixed to the door body and passes through the hinge pin. A second hinge member provided with a second insertion portion, and a synthetic resin tubular member that is attached to at least one of the first insertion portion and the second insertion portion and is externally fitted to the hinge pin. A box for storing electrical equipment, comprising: At least one of the first insertion part and the second insertion part is a cylindrical body that holds an intermediate part of the hinge pin,
The box for storing electric equipment according to claim 1, wherein the cylindrical member is inserted and arranged in the cylindrical body. The cylindrical member has a flange-shaped head having an enlarged diameter at the base while a tapered surface is formed around the tip to reduce the diameter.
The electric device storage box according to claim 2, further comprising a locking portion that locks the inserted cylindrical member. While the locking portion is formed on an elastic piece formed on the side surface of the cylindrical member so as to have elasticity in the radial direction,
4. The cylindrical body is provided with a notch in the middle and is divided and formed in the axial direction of the cylindrical body, and the locking portion is locked to the cylindrical body at the notch. Box for electrical equipment storage. The elastic piece is formed by cutting out a side surface of the cylindrical member, and an inner surface of the elastic piece can contact the hinge pin inserted into the cylindrical member,
5. A box for storing electric equipment according to claim 4, wherein the inner surface has a protrusion engaging with the hinge pin, and the hinge pin is provided with a recess engaging with the protrusion. .

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