JPH0220698Y2 - - Google Patents

Description

[Detailed Description of the Invention] -Field of Industrial Application- The present invention relates to portable electrical equipment such as a digital multimeter.

-Prior Art- Generally, in portable electrical equipment such as digital multimeters, a handle that also serves as a leg that can be raised and folded is attached to a flat square box-shaped device housing so that the device can be carried by holding the handle. and,
It is common to have an adjustable display surface on a device housing placed on a tabletop. However, with this structure, when the handle is not in use, that is, when taking measurements with the instrument housing placed on a tabletop, the handle becomes uncomfortable, and in the case of digital multimeters, it becomes difficult to place the side surface on the tabletop. Since it may be used in a vertical position, there is a risk of it falling over and damaging internal circuits, etc.

-Purpose of the invention- In view of the above-mentioned problems with conventional portable electrical equipment with handles, the purpose of the invention is to prevent the handle from becoming loose when not in use, and to prevent the handle from becoming attached to the equipment housing. To obtain a structure in which a handle can be easily adjusted and locked to any rotational angle and which helps prevent the handle from falling when an equipment housing is used in a vertical position.

-Structure of the invention- In order to achieve this objective, the invention constructs a flat square box-shaped device housing by combining a pair of housings, and has a "U" shaped handle base on both sides of the device housing. In a portable electrical device in which a mounting shaft is rotatably mounted, a pull-out prevention collar is formed on the tip of the elongated base mounting shaft that is inserted into the mounting hole of one of the device housings, and is also formed on the side plate of the other housing. A "U" shaped groove is engaged with the base mounting shaft to prevent the base mounting shaft from being pulled out from the mounting hole, and inner peripheral teeth that engage with teeth formed at the base of the base mounting shaft are inserted into the mounting hole. The handle is formed on the inner peripheral surface of the device housing so that the handle can be locked at any rotation angle relative to the device housing, and a space is formed at the lower rear side of the device housing to receive the grip portion of the handle, and the grip portion is located in the space. The present invention proposes a portable electric device in which the grip portion is provided with a protrusion that engages with a table surface and prevents the device housing placed in a vertical position from falling over.

-Embodiments- Hereinafter, details of embodiments of the present invention will be described with reference to the drawings.

FIG. 1 is a side view of a portable electrical device according to the present invention, in which a flat rectangular box-shaped device housing 1 is attached to a table surface A by four legs 2A and 2B arranged on the four sides of the bottom surface of the device housing 1. can be placed. A base mounting shaft 4 (shown in the second and third figures) of a handle 3 made of synthetic resin and molded into a "U" shape is rotatably mounted on the side plate of the device housing 1.

At the lower part of the rear side surface 5 of the device housing 1, there is a space
When the handle 3 is in the position shown in FIG. 1, the grip portion 3a of the handle 3 is located in the same space X.

2 and 3 show the mounting structure of the mounting shaft 4 of the handle 3, and the mounting shaft 4 has a pull-out prevention collar 5.
is inserted into the mounting hole 6 formed in the side plate 1a of the upper housing 1A, and after this insertion, by fitting the "U" shaped groove 7 formed in the side plate 1b of the lower housing 1B into the mounting shaft 4, the mounting hole 6 is removed. The mounting shaft is prevented from being pulled out. Further, since the base of the mounting shaft 4 is formed with a tooth portion 9 that can mesh with the inner teeth 8 of the mounting hole 6, under normal conditions, the inner teeth 8 and the teeth 9 mesh with each other, causing the device housing to The angular relationship of the handle 3 with respect to the handle 3 is fixed. When adjusting the angle of the handle 3, move the handle 3 to the position shown by the imaginary line in FIG. The handle 3 is fixed to the equipment housing 1 while maintaining the position.

The grip portion 3a of the handle 3 has a small protrusion 10 on its outer surface, and the protrusion 10 allows the device housing 1 to be placed on the table surface A with the rear side 5 of the device housing 1 as shown in FIG. 4a. When used in the vertical position, it engages with the table surface A to prevent the device housing 1 from being knocked down by external force.

Since the illustrated embodiment has the above structure,
When using portable electrical equipment placed on table surface A,
The handle 3 may be used in the position shown in FIG. In this case, the grip portion 3a of the handle 3 is located in the space You can also hold it and point it in any direction. Also, while keeping the handle 3 at the same angle,
Place the rear side 5 of the equipment housing 1 on the table surface A as shown.
When placed on a table surface A, the protrusion 10 comes into contact with the table surface A.
It is possible to prevent the vertically positioned device housing 1 from being knocked down by external force. Of course, in order to adjust the display surface on the front side of the device housing 1 to an angle that is easy to view, it is sufficient to lean the device housing 1 by the grip portion 3a of the handle 3 as shown in FIG. When carrying the device, the handle 3 can be moved toward the front of the device housing 1 as shown in FIG. 4c.

-Effects of the invention- As is clear from the above explanation, according to the invention, not only can the handle be used as a hanging hand and leg, but it also prevents the handle from becoming stiff when not in use, and prevents the handle from becoming loose when not in use. It also prevents the housing from falling over when used in a vertical position.

[Brief explanation of the drawing]

Fig. 1 is a side view of the portable electric device according to the present invention, Fig. 2 is an enlarged sectional view taken along the - line in Fig. 1, Fig. 3 is an exploded perspective view of the handle attachment part, and Fig. 4 is an exploded perspective view of the handle attachment part.
Figures a, b, and c are explanatory diagrams of how the portable electrical equipment is used. A...Table surface, X...Space, 1...Equipment housing, 3...Handle, 3a...Grip portion (of the handle), 8...Inner peripheral teeth, 9...Teeth portion, 10...Protrusion.

Claims (1)

[Scope of utility model registration request] In a portable electric device, a flat square box-shaped device housing is constructed by combining a pair of housings, and a base mounting shaft of a U-shaped handle is rotatably attached to both sides of the device housing.
A pull-out prevention collar is formed on the tip of the elongated base mounting shaft that is inserted into the mounting hole of one housing of the device housing, and a "U"-shaped groove formed on the side plate of the other housing is formed on the base mounting shaft. Inner peripheral teeth are formed on the inner peripheral surface of the mounting hole to prevent the base mounting shaft from being pulled out from the mounting hole, and to engage with teeth formed at the base of the base mounting shaft, thereby preventing arbitrary rotation relative to the device housing. It has a structure that allows the handle to be locked at an angle, and a space is formed at the rear lower part of the device housing to receive the grip part of the handle, and when the grip part is placed in the space, it engages with the table surface and is placed in a vertical position. A portable electrical device, wherein the grip portion is provided with a protrusion that prevents the device housing from falling over when placed.