JPH062748U - Leg mounting structure - Google Patents

Abstract

(57) [Summary] [Purpose] The purpose is to easily attach the rotation-prevented leg to the bottom of the chassis by screwing the mounting screw from the upper side of the chassis to the mounting tap hole of the leg. [Structure] A mounting tap hole 3a provided at a position eccentric from the center f of the leg 3, a positioning mark 3b provided on the periphery of the leg 3, a mounting jig 4 for the leg 3, and a mounting jig 4 for the mounting jig 4. Guide part 4a
The positioning guide mark 4b is provided, and the leg 3 set on the mounting jig 4 is screwed from the upper portion of the chassis 1 with the mounting screw 2.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a leg mounting structure to be mounted on the bottom of a device chassis, and more particularly to a leg mounting structure suitable for facilitating the mounting operation.

[0002]

[Prior art]

 Conventionally, many leg mounting structures to be mounted on the bottom of a device chassis have been provided as shown in FIGS. FIG. 4 is an exploded perspective view, and FIG. 5 is a sectional view showing a state in which the legs are attached to the chassis. In the figure, reference numeral 1 denotes a device chassis, and a mounting hole 1a is formed at a predetermined position on the bottom of the chassis 1. Reference numeral 2 is a mounting screw, and 10 is a leg formed in a substantially cylindrical shape, and a mounting hole 10a is formed in the center of the leg 3 having a substantially cylindrical shape.

In the leg mounting structure thus configured, the mounting screw 2 is screwed from the lower side of the chassis 1 to the mounting hole 1a of the chassis 1 through the mounting hole 10a of the leg 10, and the leg 10 is mounted on the chassis 1. It was attached to the bottom. Generally, a tapping screw is used as the mounting screw 2, and the mounting hole 1a of the chassis 1 is tapped and tightened.

[0004]

[Problems to be solved by the device]

 However, since the conventional leg mounting structure described above is mounted by screwing it from the lower side of the chassis 1, it is the reverse of the normal assembly and mounting work of the chassis 1. There was a drawback that the screwing work could not be done unless the was reversed. In particular, when the large chassis 1 is heavy, it is difficult to turn over the chassis 1 and workability deteriorates.

Further, when the legs 10 are fixed by tightening the mounting screws 2, the legs 10 may be rotated by screwing, and the screwing work time such as pressing down the legs 10 so that the legs 10 do not rotate. It also had the drawback of taking a lot of time.

The present invention has been made in view of the above points, and an object thereof is to solve the drawbacks of the conventional example, to provide the mounting holes of the legs at positions eccentric from the center of the legs, and further to mount the above-mentioned mounting. This is to provide a leg mounting structure in which the holes are used as mounting tap holes and the mounting screws are screwed from the upper side of the chassis to mount the legs.

[0007]

[Means for Solving the Problems]

 The leg mounting structure of the present invention is a device leg mounting structure formed by screwing the legs to the bottom of the chassis, and the mounting tap holes provided at positions eccentric from the center of the legs and the peripheral portions of the legs are provided. Equipped with a positioning mark, a mounting jig for mounting the leg, and a mounting positioning guide mark provided on the guide portion of the mounting jig. It is configured such that the legs are set on the tool and the mounting screws are screwed from above the chassis to attach the legs.

[0008]

[Action]

 According to this invention, the mounting tap hole is provided at a position eccentric from the center of the leg having a substantially cylindrical shape, while the alignment mark provided on the periphery of the upper part of the leg and the guide portion of the mounting jig for mounting the leg. Set the leg in the guide part of the mounting jig by aligning it with the mounting position alignment guide mark provided on.

In this way, the legs are positioned and set on the mounting jig, and the chassis is set on the upper portion of the mounting jig so that the mounting tap holes of the legs and the mounting holes of the chassis are aligned with each other. In this way, the chassis can be placed on the mounting jig and the mounting screw 2 can be screwed from the upper part of the chassis to the mounting tap hole of the leg through the mounting hole of the chassis to mount the leg to the chassis.

The above-described rotation of the leg when fixing the mounting screw is such that the leg is rotated by the guide portion inside the mounting jig because the mounting tap hole of the leg is formed at a position eccentric from the center of the leg. It is possible to prevent rotation of the leg when tightening with the mounting screw, and the leg is firmly tightened by the mounting screw and screwed.

In addition, since the legs have mounting tap holes, the mounting screws can be screwed from the top of the chassis, allowing the legs to be screwed in the same direction as when assembling and mounting chassis parts. Becomes

[0012]

【Example】

 An embodiment of a leg mounting structure according to the present invention will be described with reference to FIGS. The same parts as those of the conventional example are designated by the same reference numerals and the description thereof will be omitted. 1 is an exploded perspective view, FIG. 2 is a top view showing a leg and a guide portion of a mounting jig, and FIG. 3 is a sectional view showing a state in which the leg in the mounting jig is attached to a chassis. .

In the figure, 3 is a leg to be attached to the bottom of the chassis 1, a mounting tap hole 3a is provided at a position eccentric from the center of the leg 3, and an alignment mark 3b is provided on the upper peripheral portion of the leg 3. It was formed. Reference numeral 4 denotes a mounting jig. The mounting jig 4 has a guide portion 4a for setting the leg 3, and a guide mark 4b for alignment is formed on the upper portion of the guide portion 4a.

In the leg mounting structure thus configured, the legs 3 to be mounted on the bottom of the chassis 1 are screwed from the top of the chassis 1 with the mounting screws 2, and the mounting screws 2 are screwed from the top of the chassis 1. In this case, since the position of the leg 3 is blocked by the chassis 1 and the field of view cannot be secured, the mounting jig 4 is used to set the mounting position of the leg 3.

When the leg 3 is set on the guide portion 4a of the mounting jig 4, the guide mark 4b provided on the guide portion 4a and the alignment mark 3b provided on the upper peripheral portion of the leg 3 are set so that they are aligned with each other. When the chassis 1 is placed on the mounting jig 4 in this state, the mounting hole 1a of the chassis 1 can be automatically aligned with the mounting tap hole 3a of the leg 3.

In this way, the legs 3 are positioned and set on the mounting jig 4, the chassis 1 is placed on the upper part of the mounting jig 4, and the mounting screw 2 is used to screw the chassis 1 from the upper part of the chassis 1. At the time of this screwing, as shown in the figure, the mounting tap hole 3a of the leg 3 is formed at a position eccentric to the offset d from the center f of the substantially cylindrical shape, so the longitudinal distance of the center of the mounting tap hole 3a is The distance is “r + d” with respect to the radius r of 3, while the short distance is formed as “rd”, and the rotational movement of the leg 3 due to the tightening action of the mounting screw 2 is eccentric “r +”. acts as a radius.

That is, the radius R of the guide portion 4a of the mounting jig 4 becomes “R <r + d”, and the rotation of the leg 3 comes into contact with the guide portion 4a inside the mounting jig 4 to prevent the rotation. The screw can be tightened by the mounting screw 2 from the upper part of the chassis 1 and can be screwed.

In this way, since the legs 3 can be attached by screwing them from the upper part of the chassis 1 with the attaching screws 2 using the attaching jig 4, even with a heavy large chassis 1, there is no inversion as in the conventional case. As in the case of mounting the components on the chassis 1, the legs 3 can be mounted, and the mounting work can be performed efficiently.

[0019]

[Effect of device]

 As described above, the leg mounting structure according to the present invention is formed by eccentricizing the mounting tap hole 3a of the leg 3 from the center, and the leg 3 is set on the mounting jig 4 and the mounting screw 2 is mounted on the chassis 1 from above. Since it can be tightened and screwed, the leg 3 can be attached without reversing as in the case of attaching the parts of the chassis 1 as in the past, and the efficiency of the attaching operation can be improved. This has the effect of improving productivity and reducing production costs.

Further, since the legs 3 set on the mounting jig 4 can be prevented from rotating, a structure such as a stopper for stopping rotation of the legs 3 and the mounting jig 4 at the time of tightening with the mounting screws 2 becomes unnecessary, There is also an effect that the structures of the leg 3 and the attachment jig 4 can be simply formed.

Furthermore, even in the case of a large and heavy chassis 1, the work of attaching the legs 3 can be facilitated, the workability of the attachment can be improved, and the structure is simple as described above. Moreover, it has excellent features such as easy implementation because it can be constructed at low cost.

[Brief description of drawings]

FIG. 1 is an exploded perspective view showing an embodiment of a leg mounting structure according to the present invention.

FIG. 2 is a top view showing a leg of the present invention and a guide portion of a mounting jig.

FIG. 3 is a cross-sectional view showing a state in which a leg set in a mounting jig is attached to the chassis of the present invention.

FIG. 4 is an exploded perspective view showing a conventional example.

FIG. 5 is a cross-sectional view showing a state in which legs are attached to a conventional chassis.

[Explanation of symbols]

 1 Chassis 1a Mounting hole 2 Mounting screw 3 Leg 3a Mounting tap hole on leg 3b Positioning mark on leg 4 Mounting jig 4a Guide part 4b Guide mark

Claims (1)

[Scope of utility model registration request] 1. In a mounting structure for a leg of a device, which is formed by screwing a leg to the bottom of a chassis, a mounting tap hole provided at a position eccentric from the center of the leg and a positioning provided on a peripheral portion of the leg. A mark, a mounting jig for mounting the leg, and a mounting position alignment guide mark provided on a guide portion of the mounting jig. The alignment mark of the leg and the guide mark are aligned to form a leg on the mounting jig. Is set and the mounting screws are screwed from above the chassis to mount the legs.