JP5899942B2 - Fixing device and image forming apparatus - Google Patents

Description

  The present invention relates to a fixture and an image forming apparatus. More specifically, the present invention relates to a fixing tool used when fixing an object to be fixed to a floor surface, and an image forming apparatus installed using the fixing tool.

  When installing various devices and structures on the floor of offices, factories, homes, etc., even in the event of an earthquake, etc., the devices may fall over, causing failure, damage, and injury to surrounding people. It is important to prevent such situations. For this reason, installing the apparatus etc. on the floor surface using the fixing tool (it is also called a seismic-proof metal fitting and a fixing metal fitting) for prevention of falling is widely performed.

  As a fixture for preventing overturning in the event of such an earthquake, for example, Patent Document 1 discloses a technique relating to overturning prevention when an electronic device is installed on a floor having a double floor structure. In Patent Document 1, an earthquake-resistant fitting having a U-shaped notch (opening) is attached to four pedestals (legs) of an electronic device, and each earthquake-resistant fitting is fixed to the floor surface with two bolts. It is intended to prevent falls.

  Further, in Patent Document 2, a fixing bracket having a U-shaped notch is sandwiched and combined from different directions of a shaft portion of a furniture adjuster, and each fixing bracket is fixed to the floor surface with two bolts. Techniques for preventing furniture from falling are disclosed.

  However, in the method of fixing one foot with an earthquake-resistant metal fitting having one U-shaped notch as in Patent Document 1, the U-shaped opening in the opening direction is likely to occur when an earthquake occurs. Moreover, in order to respond to the vibration in the direction of the U-shaped side, it is necessary to prevent the earthquake-resistant metal fitting itself from rotating by using a plurality of bolts to be fixed to the floor surface. In other words, if one bolt is fixed to the floor, the seismic bracket rotates with the shaft part of the foot when the U-shaped side is vibrated, and the foot is detached from the U-shaped opening side. Can occur.

  On the other hand, in order to prevent the foot from coming off from the seismic bracket, it is conceivable to make the notch part a hole shape and fix it there through the shaft part of the foot. Since the base portion has a large diameter, the seismic bracket cannot be attached unless the pedestal is removed, and it is difficult to attach it to an existing apparatus. Also, it cannot be attached to a device that cannot be attached or detached.

  Also, as in Patent Document 2, when fixing the foot using two fixing brackets, it is necessary to adjust the mounting position so that the two mounting positions do not deviate, and the fixing work is complicated. Become. In addition, it is necessary to use two fixing brackets for one foot, and the two fixing brackets cannot have the same shape because the height of the standing wall needs to be different. End up.

  In view of the above, the present invention provides one fixing tool for one leg portion of an object to be fixed, with the relationship between the size of the rotating portion, which is the base portion of the leg portion, and the notch width of the fixing device being a predetermined relationship. In addition, it is possible to prevent the object to be detached from the leg part during an earthquake or the like by using one fastener, and to prevent the object to be moved and toppled over, and it can be easily attached to the object already installed. It is an object of the present invention to provide a fixing tool and an image forming apparatus installed using the fixing tool.

  In order to achieve such an object, the fixture according to the present invention includes a shaft portion that supports the object to be fixed, and a rotating portion that is provided at a lower portion in the vertical direction of the shaft portion and supports the object to be fixed together with the shaft portion. And a fixing member that can be attached to the leg when installing the fixed object supported by a plurality of legs including a moving part, and a floor plate located on one end and a second end A top plate portion positioned, and a shape formed by connecting the floor plate portion and the top plate portion with a wall portion, and the floor plate portion has a fastening hole for a fastener for fastening to an installation floor. Having an opening width that is formed across the top plate portion side of the wall portion and the wall portion side of the top plate portion, and can be inserted in a part of the rotation posture of the rotation portion. A first opening portion formed on the top plate portion, communicated with the first opening portion, and opened toward the downstream side in the insertion direction of the rotating portion. A second opening width is narrowed so as to be fitted to the shaft portion, and has a.

  According to the present invention, it is possible to prevent the fixed object from moving or toppling over even during an earthquake or the like, and to easily attach the fixed object already installed.

It is a schematic diagram which shows the earthquake-resistant metal fitting which is one Embodiment of the fixing tool which concerns on this invention. It is explanatory drawing which shows a mode at the time of attaching the earthquake-resistant metal fitting shown in FIG. 1 to one leg part of an image forming apparatus. 1 is an overall schematic view of a state in which a seismic bracket is attached to each leg portion of an image forming apparatus. FIG. 4 is a front view of the image forming apparatus illustrated in FIG. 3. It is a top view of the rotation part of a leg, Comprising: The example of (A) rectangular shape, (B) hexagonal shape, (C) oval shape is shown. It is explanatory drawing which shows a mode that the rotation part of a leg part is rotated and the leg part is lowered | hung. It is a schematic diagram which shows a mode that the earthquake-resistant metal fitting was fixed with the volt | bolt for fixing. It is a schematic diagram which shows an example of an earthquake-resistant metal fitting. It is a schematic diagram (1) which shows the earthquake-resistant metal fitting which is other embodiment of a fixing tool. It is a schematic diagram (2) which shows the earthquake-resistant metal fitting which is other embodiment of a fixing tool. It is a schematic diagram (3) which shows the earthquake-resistant metal fitting which is other embodiment of a fixing tool. It is a schematic diagram (4) which shows the earthquake-resistant metal fitting which is other embodiment of a fixing tool. It is a schematic diagram (5) which shows the earthquake-resistant metal fitting which is other embodiment of a fixing tool.

  Hereinafter, a configuration according to the present invention will be described in detail based on the embodiment shown in FIGS.

(First embodiment)
The fixture (earthquake-resistant metal fitting 1) according to the present embodiment is provided at a shaft portion (shaft portion 11) that supports an object to be fixed (image forming apparatus 20) and a lower portion in the vertical direction of the shaft portion. When the object to be fixed supported by a plurality of legs (pedestal, adjuster) composed of a rotation part (rotation part 12) that supports the object to be fixed together with the part can be attached to the leg. It is a fixture, Comprising: The floor part (floor board part 2) located in one end side, the top board part (top board part 4) located in the other end side, and the wall part (between the floor board part and the top board part) The floor portion has a fastening hole (fastening hole 5) for fastening to the installation floor (installation floor 30), and the top of the wall portion A first opening (first opening) having an opening width that can be inserted in a part of the rotation posture of the rotation portion and is inserted in the rotation posture of the rotation portion. ) And a second opening (second opening) that is formed in the top plate portion, communicates with the first opening, and has an opening width narrowed so that the shaft portion can be fitted toward the downstream side in the insertion direction of the rotating portion. Part 7). In addition, a rotation attitude shall mean the state in each rotation position at the time of 360 degree rotation of a rotation part.

  Hereinafter, in this embodiment, a large electrophotographic image forming apparatus (for example, (1) depth 990 mm, width 1280 mm, height 1260 mm, weight about 630 kg, and (2) depth 910 mm, width is suitably used as the fixed object. 1320 mm, height 1218 mm, weight about 580 kg, etc. Hereinafter, the case where the image forming apparatus is used) will be described as an example, but the external dimensions and weight of the fixed object are not particularly limited. The fixing device according to the present invention is also applied to a general electrophotographic image forming apparatus (multifunction machine) installed in an office or the like having a predetermined leg shape, other electronic devices, household electronic devices, furniture, etc. Of course, it is applicable.

  FIG. 1 shows a perspective view of the earthquake-resistant metal fitting 1 of the present embodiment. 2 shows a state in which the earthquake-resistant metal fitting 1 shown in FIG. 1 is attached to one leg portion (also referred to as a foot, which includes a shaft portion 11 and a rotating portion 12) of the image forming apparatus 20. It is explanatory drawing. FIG. 3 shows an overall schematic diagram of the state in which the earthquake-resistant metal fitting 1 is attached to each of the four legs of the image forming apparatus 20 and fixed to the installation floor 30 by the fixing bolts 13. 4 shows a front view of the image forming apparatus 20 shown in FIG.

  The image forming apparatus 20 as a fixed object can be moved in the horizontal direction by a caster 21 which is a moving means provided at the lower part of the main body, and is moved by the caster 21 to a desired installation position at the time of installation. Then, after the installation positioning is performed, the rotation part 12 of the four adjusters (height adjustment means) as the leg parts is rotated to adjust the protruding amount from the main body of the screw-like shaft part 11 of each adjuster. Thus, the installation height of the image forming apparatus 20 can be set to a desired height. Even when the installation floor 30 has irregularities, inclinations, and the like, the image forming apparatus 20 can be installed so as to satisfy a desired horizontal reference by adjusting the protruding amount of each adjuster.

  When the installation is completed, the caster 21 is separated from the installation floor 30 and the main body is supported by the four adjusters. For the purpose of distributing the load from the adjuster to the installation floor 30, an adjuster receiver (not shown) is placed on the installation floor 30, and the rotating portion 12 of the adjuster is placed via the adjuster receiver. Anyway.

  The earthquake-resistant metal fitting 1 as a fixture has a crank shape in which a floor plate portion 2 located on one end side and a top plate portion 4 located on the other end side are connected by a wall portion 3. The earthquake-resistant metal fitting 1 is not particularly limited as long as one metal plate is processed by sheet metal processing or a plurality of metal plates are welded. Moreover, the dimension, material, thickness, etc. of the earthquake-resistant metal fitting 1 should just be suitably selected according to the weight of a to-be-fixed object, or the shape of a leg part.

  The floor plate portion 2 has a fastening hole 5 that can be fastened by a fixing bolt 13 while being placed on the installation floor 30. In the example shown in FIG. 3, the earthquake-resistant metal fitting 1 is fixed to the installation floor 30 with one fixing bolt 13. As will be described later, since the earthquake-resistant metal fitting 1 according to the present embodiment is intended to prevent removal from the leg portion, even if it is fixed by one fixing bolt 13, it can be prevented from coming off due to rotation. However, it is needless to say that the fastening hole 5 having a shape that can be fastened using a plurality of fixing bolts may be used to increase the fixing force to the installation floor 30.

  Further, a first opening 6 is formed across the top plate 4 side of the wall 3 and the wall 3 side of the top plate 4. The first opening 6 has an opening width 6a (FIG. 2) that can be inserted in at least a part of the rotation posture of the rotation posture in which the rotation portion 12 of the leg portion rotates 360 degrees.

  Further, the top plate portion 4 communicates with the first opening 6, and the opening width is removed toward the downstream side in the insertion direction of the rotating portion 12 regardless of the rotational position of the rotating portion 12. In other words, the second opening 7 narrowed to an opening width into which only the shaft 11 can be fitted is formed.

  Next, attachment of the seismic bracket 1 to the legs of the image forming apparatus 20 and the installation floor 30 will be described. FIG. 5 is a schematic diagram when the rotating unit 12 is viewed from the direction of the shaft 11.

  In the example illustrated in FIG. 2, the rotating unit 12 has a rectangular parallelepiped shape, and as illustrated in FIG. 5A, the installation surface of the shaft 11 has a rectangular shape including a short side 12 a and a long side 12 b (installation). The same applies to the contact surface with the floor 30).

  Here, the installation surface of the shaft 11 of the rotating part 12 in the leg part to which the earthquake-resistant metal fitting 1 is attached needs to have a shape having a short side 12a and a long side 12b. Here, the short side 12a refers to a length in which the width in the predetermined direction becomes the shortest when the rotation unit 12 is rotated 360 degrees, and the long side 12b refers to the width in the predetermined direction. The length is the longest length, and does not necessarily match the length of the side of the installation surface of the shaft 11.

  Further, the shape of the rotating portion 12 is not limited to a rectangular parallelepiped shape, and may be a hexagonal cubic shape as shown in FIG. 5B or another polygonal cubic shape. Further, an oval shape as shown in FIG. In addition, since the rotation part 12 is rotated with tools, such as a spanner, it is preferable to have a parallel part which pinched | interposed the axis | shaft 11 so that rotation is easy to pinch | interpose with a tool.

  As described above, when the image forming apparatus 20 is moved to the installation position, the image forming apparatus 20 is supported by the casters 21, and the leg rotation unit 12 is separated from the installation floor 30. When attaching the seismic bracket 1 to the leg portion, first, as shown in FIG. 2, with the leg portion being away from the installation floor 30, at the boundary between the wall portion 3 and the top plate portion 4 of the seismic bracket 1. The rotating part 12 of the leg part is inserted into the first opening part 6 provided.

  Here, the opening width 6 a of the first opening 6 of the earthquake-resistant metal fitting 1 is formed to be at least shorter than the length of the long side 12 b of the rotating portion 12. By configuring in this way, when the rotating part 12 is inserted into the first opening 6, the long side 12 b is not inserted in a rotational posture facing the opening width 6 a. In other words, after the rotation unit 12 is inserted in a rotation posture that can be inserted into the first opening 6, the rotation posture in which the rotation unit 12 is wider than the first opening 6 inside the first opening 6. As a result, the rotating part 12 can be brought into a state in which it cannot come out of the first opening 6 from the inside.

  In the present embodiment, the opening width 6a of the first opening 6 is such that the short side 12a of the rotating portion 12 is just fitted and can be inserted, and the opening width 6a can be this length. Most preferred. In this case, after the rotation unit 12 is inserted, the rotation posture of the rotation unit 12 can be removed only when the short side 12 a faces the first opening 6.

  Therefore, after inserting the rotation part 12 in the 1st opening part 6, it can be set as the state which cannot be removed from the inner side of the 1st opening part 6 by changing the rotation attitude | position of the rotation part 12. FIG. As will be described later, since the rotation unit 12 is rotated and grounded to the installation floor 30 after the rotation unit 12 is inserted, the rotation posture always changes.

  Further, the first opening 6 communicates with the second opening 7. In addition, it is preferable that the 2nd opening part 7 is formed in the width | variety which the axial part 11 fits. Thereby, the 2nd opening part 7 can pinch | interpose and support the axial part 11. FIG. Further, the connecting portion between the first opening 6 and the second opening 7 has an inclined shape on the downstream side so that the shaft portion 11 is smoothly guided from the first opening 6 to the second opening 7. It is also preferable.

  FIG. 6 is an explanatory diagram showing a state in which the rotation portion 12 is rotated to increase the protruding amount of the shaft portion 11 from the image forming apparatus 20 (the leg portion is lowered). As described above, after attaching the earthquake-resistant metal fitting 1 to the leg portion, the rotating portion 12 is rotated to lower the leg portion, the rotating portion 12 is grounded to the installation floor 30, and the casters 21 are separated from each other. Become. At this time, it can prevent that a leg part remove | deviates from the earthquake-resistant metal fitting 1 by setting it as the position which the rotation attitude | position of the rotation part 12 changed from the time of insertion.

  Of the length 4 a in the insertion direction of the shaft portion 11 of the top plate portion 4, the length 4 b to the shaft center of the shaft portion 11 is the rotation portion 12 and the shaft portion 11 is the end of the second opening 7. It is configured to be rotatable in a state where it is fitted to the part. For example, when the shaft center of the shaft portion 11 is the center position of the installation surface of the rotating portion 12, the length 12c of the diagonal line of the installation surface of the shaft portion 11 of the rotating portion 12 is longer than ½ thereof. Configure. When the legs are lowered, the floor plate 2 of the earthquake-resistant metal fitting 1 may be turned to a position that does not hinder the work (for example, the position shown in FIG. 6). Thereby, use of tools, such as a spanner, used when rotating the rotation part 12, is also easy.

  In addition, the axial length of the shaft portion 11 has a margin, and when the earthquake-resistant metal fitting 1 is lifted upward, the bottom surface of the floor plate portion 2 is made higher than the height of the installation surface of the shaft portion 11 of the rotating portion 12. If possible, the length 4 a in the insertion direction of the shaft portion 11 of the top plate portion 4 may not be longer than the diagonal length 12 c of the rotating portion 12. In this case, for example, the upper surface of the top plate portion 4 and an object to be fixed may be temporarily bonded. Or a magnetic member etc. may be attached to the upper surface side of the top-plate part 4, and you may make it hold | maintain temporarily to a to-be-fixed object.

  FIG. 7 is a schematic diagram showing a state in which the earthquake-resistant metal fitting 1 is fixed with the fixing bolt 13. After the image forming apparatus 20 is adjusted so as to satisfy a desired horizontal reference by adjusting each leg portion, the seismic fitting 1 is aligned with the fixing position and the fixing bolt 13 is driven into the installation floor 30 and fixed.

  The same applies to the case where the seismic bracket 1 is attached to the image forming apparatus 20 already installed at a predetermined position without changing the installation position. After being installed, since it is supported by the adjuster, the rotating unit 12 is first rotated, the rotating unit 12 is separated from the installation floor, and is supported by the caster 21, and then the above-described mounting operation. Can be done.

  An example of a specific shape of the earthquake-resistant metal fitting 1 is shown in FIG. In addition, the material of the earthquake-resistant metal fitting 1 is a general structural steel material (SPCC or the like), the thickness is 3.2 mm, and the dimensions of each part are as shown (unit: mm). Further, the shaft portion 11 of the leg portion has a diameter of 20 mm, the rotating portion 12 has a short side of 30 mm, a long side of 35 mm, and a height of 11 mm. Further, as the fixing bolt 13, an M20 bolt was used. The height of the leg (from the installation floor 30 to the main body) is 50 mm.

  As mentioned above, according to the earthquake-resistant metal fitting 1 which concerns on this embodiment demonstrated, even when it attaches to a to-be-fixed object by an earthquake etc. and vibrates after attaching the earthquake-resistant metal fitting 1 to the leg part, the rotation part of a leg part Since the seismic bracket 1 does not come off the leg unless the 12 is removed from the first opening 6 in a predetermined rotational posture so as to be detached from the seismic bracket 1, the seismic fitting 1 is prevented from coming off the leg. Therefore, it is possible to prevent the fixed object from moving and falling. Further, it can be easily attached to an existing fixed object later.

(Second Embodiment)
Hereinafter, other embodiments of the fixture according to the present invention will be described. In addition, the description about the same point as the said embodiment is abbreviate | omitted.

  As shown in FIG. 9, it is also preferable to provide a bent portion 10 on the installation floor 30 side along both sides in the insertion direction of the shaft portion 11 of the second opening 7. In addition, even if the bending part 10 is integrally molded with the top-plate part 4, it may be comprised as another member which can be attached or detached.

  As a result, the bent portion 10 is located at a position corresponding to the upper portion of the rotating portion 12 that is fixed in a posture rotated from the insertion position, and is positioned at a shorter interval than the top plate portion 4. The movement of the portion 12 in the vertical direction can be restricted. Therefore, when the image forming apparatus 20 swings in the vertical direction during an earthquake or the like, it is possible to restrict the vertical movement of the rotating unit 12 and prevent the earthquake-resistant metal fitting 1 from being detached.

(Third embodiment)
Moreover, as shown in FIG. 10, it is also preferable to make the top plate part 4 thicker than the floor plate part 2 and the wall part 3. Thereby, while improving the rigidity of the top-plate part 4, the space | interval of the rotation part 12 and the top-plate part 4 can be narrowed, Therefore Like 2nd Embodiment, the vertical direction of the rotation part 12 is sufficient. It is possible to restrict the movement and prevent the earthquake-resistant metal fitting 1 from coming off.

(Fourth embodiment)
Further, as shown in FIG. 11, ribs 8 are provided on both sides of the connecting position between the floor plate 2 and the wall 3 and / or on both sides of the connecting position of the wall 3 and the top plate 4. Thus, it is also preferable to prevent the deformation of the floor plate portion 2 and the top plate portion 4 and improve the durability of the earthquake-resistant metal fitting 1. In addition, even if the rib 8 is integrally molded with the floor board part 2 and the top-plate part 4, it may be comprised as another member.

(Fifth embodiment)
As shown in FIGS. 12 and 13, when the wall portion 3 is the first wall portion 3, the second wall portion 9 having no opening is connected between the floor plate portion 2 and the top plate portion 4. You may be made to do. In other words, the floor plate portion 2 is not necessarily provided on the lower side of the first opening 6, and in this case, the lower portion of the first wall portion 3 is directly installed on the installation floor 30.

  The position where the second wall portion 9 is provided is not particularly limited. However, in order to facilitate molding, 90 ° and 180 ° with respect to the first wall portion 3 as viewed from the top plate portion 4 (see FIG. 12) It is preferably provided at any position of 270 degrees (FIG. 13).

  The above-described embodiment is a preferred embodiment of the present invention, but is not limited thereto, and various modifications can be made without departing from the gist of the present invention.

1 Seismic bracket (fixture)
2 Floor board part 3 Wall part (first wall part)
4 Top plate portion 5 Fastening hole 6 First opening portion 7 Second opening portion 8 Rib 9 Wall portion (second wall portion)
10 Bending part 11 Shaft part (leg part)
12 Rotating part (leg part)
13 Fixing bolt 20 Image forming apparatus (fixed object)
21 Casters 30 Installation floor

JP 2004-36121 A JP 2001-161475 A

Claims (10)

Each of which is supported by a plurality of legs each including a shaft portion that supports an object to be fixed, and a rotating portion that is provided in a vertically lower portion of the shaft portion and supports the object to be fixed together with the shaft portion. A fixing tool that can be attached to the leg when installing an object to be fixed,
A floor plate portion located on one end side, a top plate portion located on the other end side, and a shape formed by connecting the floor plate portion and the top plate portion with a wall portion;
The floor plate portion has a fastening hole for a fastener for fastening to an installation floor,
A first opening width is formed across the top plate portion side of the wall portion and the wall portion side of the top plate portion, and has an opening width that can be inserted in a part of the rotation posture of the rotation portion. An opening,
A second opening formed in the top plate portion, communicated with the first opening, and narrowed so that the opening can be fitted into the shaft toward the downstream side in the insertion direction of the rotating portion; A fixture characterized by having.   2. The fixture according to claim 1, wherein the opening width of the first opening portion is an opening width that can be inserted only in a rotation posture that is the narrowest in the rotation posture of the rotation portion. .   The said fastening hole is a shape which can fix the said floor-plate part to the said installation floor with one bolt-shaped fastener, The fixing tool in any one of Claim 1 or 2 characterized by the above-mentioned. The wall portion includes a first wall portion having the first opening portion and a second wall portion not having the first opening portion,
The fixture according to any one of claims 1 to 3, wherein the floor plate portion and the top plate portion are connected by the second wall portion.   The said 2nd wall part is provided in any position of 90 degree | times, 180 degree | times, and 270 degree | times with respect to said 1st wall part seeing from the said top plate part, The fixing of Claim 4 characterized by the above-mentioned. Ingredients.   The bending part which controls the movement to the perpendicular direction of the said rotation part is provided in the insertion direction both sides of the said axial part of said 2nd opening part, The any one of Claim 1 to 5 characterized by the above-mentioned. Fixture.   The thickness of the said top-plate part is larger than the thickness of the said floor-plate part, The fixing tool of any one of Claim 1 to 6 characterized by the above-mentioned.   The ribs are provided on both sides of the connection position between the floor plate and the wall and / or on both sides of the connection between the wall and the top plate. The fixture according to any one of the above.   It is the said to-be-fixed object, Comprising: Four legs are fixed by the fixing tool of any one of Claims 1-8, It satisfy | fills predetermined horizontal reference | standard, It is characterized by the above-mentioned. Image forming apparatus. And casters as moving means in the lower portion of the main body portion, anda adjuster as height adjusting means an the legs, in a state in which the adjuster was between away from the installation floor, said by the caster The amount of protrusion of the shaft from the main body is adjusted by moving the installation floor and rotating the rotation section of the adjuster at a desired installation position, and the adjustment floor supports the installation floor. The image forming apparatus according to claim 9, wherein the casters are separated from the installation floor.

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