JP6553501B2 - Electrical equipment - Google Patents

Description

  The present invention relates to an electric device including a caster that is detachably attached to a device main body.

  As a conventional engaging structure of a removable caster, for example, the one disclosed in Patent Document 1 is known, and a mounting shaft which is protruded from the caster is inserted into a mounting hole provided on the bottom surface of the device body. The mounting shaft is prevented from coming off by engaging the engaging portion formed in the above with the locking piece formed in the mounting hole.

JP 2000-052705 A

  When using such a caster mounting structure for electrical equipment, if the equipment is large or heavy, it is necessary to use a large number of casters to support the equipment. Sometimes it is necessary to install casters not only near the center. However, since a mounting hole is directly formed near the center of the bottom surface of the main body in the mounting structure as in Patent Document 1, functions such as a humidification operation and an air conditioning operation that exhibit performance by maintaining the airtightness inside the main body are provided. There is a possibility that performance degradation is caused in the electrical equipment provided. For example, in a humidifier provided with a water storage section inside the main body, if a hole is opened near the center of the bottom of the main body, when water stored in the water storage section overflows due to an impact from the outside, Water may leak and contaminate the surroundings. Also, although it is necessary to introduce air inside the main unit to perform humidification operation or air conditioning operation, air is not kept outside the ventilation path because the airtightness of the ventilation path that allows air to pass inside the main body is not maintained. Leakage may result in a decrease in blowing efficiency and a reduction in humidification capacity and air conditioning capacity associated therewith.

  The present invention is for solving the above-described problems, and provides an electrical device that can maintain the airtightness inside the main body and suppress the performance degradation of the main body in an electric device including a detachable caster. The purpose is

The present invention is an electric device having a caster mounting portion for attaching a caster to the bottom surface of the main body, and is formed while maintaining a hermeticity inside the main body by providing a recess in the inner direction near the center of the main body bottom surface. A bottom space and a bottom cover that closes the bottom space, and the caster mounting portion has a mounting hole for fitting a mounting shaft protruding from the caster, and near the outer periphery and the center of the bottom surface of the main body The outer peripheral side mounting part has the mounting hole in the bottom surface of the main body, and the central side mounting part has the mounting hole in the bottom cover. have a, those related to the electrical device, characterized in that for accommodating the mounting shaft into the bottom space.

  Further, the caster mounting portion has a locking piece for locking to an engaging portion formed at a tip of the mounting shaft, and the locking piece extends from the periphery of the mounting hole and is cut out. The electric device according to claim 1, further comprising a portion.

  The locking piece of the central mounting portion is formed with a plurality of the cutout portions, and is surrounded by a locking piece protection portion protruding from the bottom surface of the main body. This relates to the electrical equipment described in 2.

  4. The electric device according to claim 2, wherein the notch portion of the locking piece of the outer peripheral side mounting portion is formed over substantially a half of the entire circumference of the mounting hole. .

  By adopting the configuration described above, the structure of the outer peripheral side mounting portion and the central side mounting portion are different, and the airtightness inside the main body can be maintained by not forming a mounting hole directly near the center of the bottom surface of the main body. It is possible to provide an electric device that can suppress a decrease in performance of the main body.

It is an external appearance perspective view when the humidifier in the present invention is seen from the upside down. It is a principal part enlarged view of the bottom cover of the humidifier in this invention. It is a longitudinal cross-sectional block diagram of the center side attaching part of the humidifier in this invention. It is a schematic block diagram of the outer periphery side attachment part periphery of the humidifier in this invention.

  BEST MODE FOR CARRYING OUT THE INVENTION The best mode of the present invention, which is considered preferable, will be briefly described by showing the effects of the present invention.

  The electric device according to the present invention comprises the outer peripheral side mounting portion and the central side mounting portion for mounting the caster in the vicinity of the outer periphery and the center of the bottom of the main body, and the outer peripheral side mounting portion The center mounting portion has mounting holes in the bottom cover for closing the bottom space formed on the bottom of the main body. That is, since the mounting hole is not directly formed in the vicinity of the center of the bottom of the main body, the airtightness inside the main body is maintained, and functions such as humidification operation and air conditioning operation that exhibit performance are maintained by maintaining the airtightness. It is possible to suppress the performance degradation of the electrical equipment provided.

  In addition, it has a locking piece to be locked to the engaging portion at the tip of the mounting shaft, and the locking piece is extended from the periphery of the mounting hole and has a notch. That is, since the tip of the mounting shaft is easy to move due to the cutout portion, it is possible to easily disengage the locking piece from the engaging portion simply by moving the mounting shaft when removing the caster.

  Further, a plurality of notch portions are formed in the locking piece of the central side attachment portion, and the outer periphery of the locking piece is surrounded by the locking piece protection portion. In other words, by dividing the locking pieces into a plurality of pieces, the rigidity of the individual locking pieces is reduced to facilitate bending, and the tip of the mounting shaft is easily moved. Therefore, when removing the caster, it is easy to move the mounting shaft. The engaging piece can be engaged and disengaged from the engaging portion. Furthermore, even when the caster collides with a step or the like and an external force is applied and the locking piece is largely bent, the movement is restricted so that the locking piece is not significantly bent by being surrounded by the locking piece protection portion. Breakage of the locking piece can be prevented.

  Further, the notch portion is formed in the locking piece of the outer peripheral side attachment portion over substantially half of the entire circumference of the attachment hole. That is, when the caster is removed, the locking piece can be easily engaged and disengaged from the engaging portion only by tilting the mounting shaft in the direction of the notch. Furthermore, since the locking piece is also formed substantially over the entire circumference of the mounting hole, the rigidity of the locking piece is larger than when divided into a plurality, and the strength can be secured. Even when the is added, breakage of the locking piece can be prevented.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

  FIG. 1 is an external perspective view of a humidifier as an example of an electric apparatus according to the present invention when viewed from the upside down. The humidifier has a main body 1 exterior made of synthetic resin, and has a bottom space 3 formed by providing a recess in the inner direction of the main body 1 near the center of the main body bottom surface 2. A bottom cover 4 for closing is attached. The bottom cover 4 is also made of synthetic resin.

  Further, a caster mounting portion 6 (outer peripheral side mounting portion 7) for attaching the caster 5 is provided near the outer periphery of the bottom surface 2 of the main body. In this embodiment, one is provided at each of the four corners of the bottom surface 2 of the main body. Furthermore, the caster mounting portion 6 (central side mounting portion 8) is also provided on the bottom cover 4, and the caster 3 is disposed near the center of the bottom surface 2 of the main body.

  Further, mounting holes 9 are formed in the bottom surface 2 and the bottom cover 4 provided with the caster mounting portions 6, and the mounting shaft 10 protruding from the casters 5 is inserted into and fitted to the mounting holes 9. Then, the casters 5 are attached to the bottom surface 2 and the bottom cover 4 of the main body. Then, the restriction piece 11 provided in the middle appropriate position of the mounting shaft 10 abuts on the bottom surface 2 and the bottom cover 4 to restrict the movement of the mounting shaft 10 in the back direction.

  As described above, by providing the mounting hole 9 in the bottom cover 4 in the central mounting portion 8, the mounting hole 9 is not directly formed in the main body 1 near the center of the bottom surface 2 of the main body. Maintained. That is, in the humidifier that exhibits performance by maintaining the airtightness inside the main body 1, it is possible to suppress the performance degradation caused by the opening of the hole near the center of the main body bottom surface 2. For example, in a humidifier provided with a water storage section inside, even if the water stored in the water storage section flows out of the water storage section due to an impact from the outside, the holes are not open, so the leakage of water to the outside of the main body 1 is suppressed. This prevents the surroundings of the humidifier from getting dirty. In addition, in order to perform the humidification operation, it is necessary to introduce air into the main body 1. However, since airtightness of the ventilation path through which air passes is maintained inside the main body 1, air leakage is suppressed and air blowing efficiency is achieved. And the accompanying reduction in humidification capacity can be prevented.

  Since no parts related to performance are arranged near the outer periphery of the bottom surface 2 of the main body and there is little need to pay attention to the airtightness inside the main body 1, the mounting hole 9 is directly formed in the main body 1 without providing the bottom cover 4. Can be formed.

  FIG. 2 is an enlarged view of a main part of the bottom cover 4. A locking piece 12 extending in a cylindrical shape from the mounting hole 9 is provided on the entire circumference of the mounting hole 9 provided in the bottom cover 4, and this locking piece 12 is provided on a mounting shaft 10 of a caster 3 to be described later. It engages with the engaging portion 13. Further, the locking piece 12 is divided into a plurality of parts by providing a notch portion 14. In the present embodiment, the locking piece 12 is divided into three parts by providing three notches 14 at equal intervals. By being divided in this manner, the rigidity per locking piece 12 is reduced, so the locking piece 12 is easily bent in the inner circumferential direction and the outer circumferential direction of the mounting hole 9.

  FIG. 3 is a vertical cross-sectional configuration diagram of the center side attachment portion 8 in a state where the casters 5 are attached. A locking piece protection portion 15 is formed in a cylindrical shape on the bottom surface 2 of the main body. When the bottom cover 4 is attached to the bottom surface 2 of the main body, the locking piece 12 is formed on the inner peripheral surface of the locking piece protection portion 15. The entire outer periphery of the locking piece 12 is surrounded by the locking piece protection part 15. In addition, the engagement portion 13 is formed by cutting out at the tip of the mounting shaft 10 of the caster 5 along the circumferential direction, and by fitting the mounting shaft 10 into the mounting hole 9 and pushing it in the back direction The front end of the locking piece 12 engages with the joint portion 13, and the attachment shaft 10 is prevented from coming off. As a result, the mounting shaft 10 is fixed to the bottom cover 4 while being accommodated in the bottom space 3.

  When removing the caster 5 from the main body 1, the tip of the mounting shaft 10 is pressed against the locking piece 12 by applying a force in the lateral direction to the mounting shaft 10 and twisting the mounting shaft 10 first. The locking piece 12 of the central mounting portion 8 is easily bent, and the tip of the mounting shaft 10 is easily moved by the presence of the notch portion 14. Therefore, the mounting shaft 10 is moved to bend the locking piece. The locking piece 12 can be easily detached from the engaging portion 13. After that, the tip of the mounting shaft 10 can be pulled out from the mounting hole 9 simply by pulling the mounting shaft 10 in the pulling direction.

  Furthermore, even if a larger force is applied to the locking piece 12 than when removing the caster 5 due to an impact such as the caster 5 hitting a step during movement of the humidifier, the entire outer circumference of the locking piece 12 protects the locking piece Since the movement of the locking piece 12 is restricted so as to prevent the locking piece 12 from being greatly bent and damaged by being surrounded by the portion 15, the breakage of the locking piece 12 can be prevented.

  On the other hand, FIG. 4 is a schematic configuration diagram of the periphery of the outer peripheral side attaching portion 7 in a state where the casters 5 are attached. A locking piece 16 cylindrically extended from the mounting hole 9 is provided over substantially the entire circumference of the mounting hole 9 provided at the four corners of the bottom surface 2 of the main body, and the other half is a notch It becomes the part 17. For this reason, since the rigidity per one of the locking pieces 16 is greater than when divided into a plurality of pieces, the locking pieces 16 are less likely to bend in the inner circumferential direction and the outer circumferential direction of the mounting hole 9.

  Then, when the mounting shaft 10 of the caster 5 is inserted into the mounting hole 9 and pushed in the back direction, the tip of the locking piece 16 is engaged over approximately half of the engaging portion 13. It becomes retention. Thereby, the attachment shaft 10 is fixed to the main body bottom surface 2.

  When the caster 5 is removed from the main body 1, the mounting shaft 10 is first moved to tilt the tip of the mounting shaft 10 in the direction of the notch 17. Since approximately half of the entire circumference of the mounting hole 9 is the locking piece 16 and the other half is the cutout portion 17, it is possible to engage with the engaging portion 13 on the opposite side of the mounting shaft 10 by simply tilting the mounting shaft 10 in one direction. Since the locking piece 16 that has been used is easily engaged and disengaged, the tip of the mounting shaft 10 can be pulled out from the mounting hole 9 simply by pulling the mounting shaft 10 in the pulling direction.

  In addition, even if a larger force is applied to the locking piece 16 than when removing the caster 5 due to an impact such as the caster 5 hitting a step during movement of the humidifier, the locking piece 16 can have a large rigidity and secure strength. It is hard to be damaged. Thereby, it can suppress that distortion, a crack, etc. generate | occur | produce in the main body 1 external appearance of the outer periphery side attachment part 7 periphery.

  In addition, although the present Example demonstrated using a humidifier as an example, this invention is not limited to a humidifier, and the humidification driving | operation which needs to maintain the airtightness inside a main body on the performance of an apparatus is required. The present invention can also be applied to electrical equipment having functions such as air conditioning operation.

2 Body bottom surface 3 Bottom space 4 Bottom cover 5 Caster 6 Caster mounting portion 7 Outer peripheral side mounting portion 8 Center side mounting portion 9 Mounting hole 10 Mounting shaft 12, 16 Locking piece 13 Engaging portion 14, 17 Notch portion 15 Locking One protection part

Claims (4)

An electric device provided with a caster mounting portion for attaching a caster to the bottom surface of the main body, and by providing a recess in the inner direction near the center of the bottom surface of the main body, a bottom space formed while maintaining airtightness inside the main body , A bottom cover for closing the bottom space, and the caster mounting portion has a mounting hole for fitting a mounting shaft protruding from the caster, and is provided near the outer periphery and the center of the bottom surface of the main body. constructed from the outer side mounting portion and the center-side mounting portion, the outer peripheral side mounting portion has the mounting hole in the bottom of the unit, the central-side attachment portion have a said mounting hole on said bottom cover, An electric device , wherein the mounting shaft is accommodated in the bottom space .   The caster mounting portion has a locking piece for locking to an engaging portion formed at the tip of the mounting shaft, and the locking piece extends from the periphery of the mounting hole and has a notch portion. The electric device according to claim 1, comprising:   3. The outer periphery of the locking piece of the center-side mounting portion is formed with a plurality of the cutout portions and is surrounded by a locking piece protection portion protruding from the bottom surface of the main body. Electrical equipment.   4. The electric device according to claim 2, wherein the locking piece of the outer peripheral side attachment portion has the cutout portion formed over substantially half of the entire circumference of the attachment hole.

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