JP2006106487A - Adjuster device and household electric appliance - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To reduce troublesomeness at the time of installation by allowing a household electric appliance like a projector to be continuously adjusted to an arbitrary height without a need of lifting an appliance main body when adjusting the height of the appliance to install the appliance. <P>SOLUTION: An adjuster device 3 comprises a height adjustment shaft 4, an adjustment leg 7, and an adjuster case 11, and the height adjustment shaft 4 has a warm 5 attached to a lower part thereof and has a knob 6 attached to an upper part thereof. The adjustment leg 7 consists of a shaft having a square section, and a rack 8 engaged with the warm 5 is formed on one face of the adjustment leg 7 over a prescribed length, and a foot member 9 brought into contact with a support base is attached to a lower end of the adjustment leg 7. When the knob 6 attached to the outside of the adjuster case 11 is turned, the warm 5 is rotated together with the height adjustment shaft 4 to drive the rack 8, whereby the amount of projection of the adjustment leg 7 is controlled to vertically adjust an attitude of the household electric appliance like a projector. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to an adjuster device and home appliances, and more particularly, to an adjuster device that adjusts the installation height of home appliances such as a projection device to a floor without any steps with a device having a simple configuration, and a home appliance equipped with the adjuster device.

  Devices such as home appliances are provided with legs that can be adjusted in height so that they can be used according to the environment in which they are used. Also in the projection apparatus, in order to adjust the position of the projection screen, it is necessary to adjust the installation angle of the projection apparatus main body with respect to the installation table.

The foot with height adjustment function described in Patent Document 1 can easily adjust the height and angle of furniture and home appliances, and can effectively prevent inadvertent behavior of furniture and home appliances during height adjustment. It provides a foot with an adjustment function that can be controlled and finely adjusted the height and angle, and has an upper outer case having a bottomed receiving hole with an open lower end, and a piston part that is airtightly slidable in the receiving hole Leg member, orifice for opening air working chamber formed by exterior case and piston part to atmosphere, leg elastic member for constantly urging leg member downward, and forward / backward movement of leg member can be regulated A locking means, a plurality of restriction irregularities formed on the outer peripheral surface of the leg member, an operation member having a locking irregularity that can be engaged with the restriction irregularities, and a direction in which the irregularities engage the operation member It has an elastic member for locking that is always energized And a lock means.
JP 2003-139187 A

  In the conventional adjuster device as described in Patent Document 1, the height is adjusted only at regular intervals, that is, in steps because of the structure in which the engaging uneven portions of the operation member are pressed against a large number of restricting uneven portions. It is not possible to adjust the distance between the regulation irregularities. Further, in order to adjust the height, it is necessary to lift the device main body provided with the adjuster device, and a shift occurs when the device main body is placed after adjusting the height. In order to correct this deviation, it is necessary to adjust the height of the adjuster several times, which requires a very troublesome operation.

  Therefore, according to the present invention, the height of the home appliance such as a projection device can be adjusted to an arbitrary height in a stepless manner in the height adjustment when installing the home appliance on the installation stand. It is an object of the present invention to provide an adjuster device that does not require lifting of the main body and can reduce troublesomeness during installation.

  In order to solve the above-mentioned problems, the present invention is equipped with a worm gear mechanism in the adjuster device, which can adjust the height steplessly to an arbitrary height, and is provided without lifting the device body. We propose an adjuster that can be adjusted in height with the knob.

  According to a first technical means of the present invention, a height adjusting shaft having a worm, an adjusting leg having a rack meshing with the worm, the height adjusting shaft including the engaging portion of the worm and the rack, and the adjusting leg are accommodated. And an adjuster device that adjusts a protruding length of the adjusting leg from the adjuster case by rotating the height adjusting shaft.

  According to a second technical means, in the adjuster device of the first technical means, the adjuster case is attached to the equipment body, and the weight of the equipment body is supported by the worm and the rack.

  According to a third technical means, in the adjuster device of the first or second technical means, a knob is provided on the height adjusting shaft, and the height adjusting shaft is rotated by the knob.

  A fourth technical means is characterized in that the adjuster case of any one of the first to third technical means is attached to a device main body, and the knob is attached to a position matching the upper surface of the device main body.

  According to the present invention, in the height adjustment when installing home appliances such as a projection device, it can be adjusted to an arbitrary height steplessly instead of stepwise, and it is not necessary to lift the device body as in the past, The troublesomeness at the time of installation is reduced.

  The present invention can adjust the height of the device body to an arbitrary height steplessly when installing a home appliance such as a projection device, and it is not necessary to lift the device body during adjustment. It is an object to reduce the troublesomeness. Therefore, the adjuster device of the present invention includes a height adjusting shaft, an adjusting leg, and an adjuster case. The height adjusting shaft has a worm attached to the lower part and a knob attached to the upper part. A rack that meshes with the worm is formed on the adjustment leg over a predetermined length. The height adjustment shaft, including the meshing part of the worm and the rack, and the adjustment leg are housed in the adjuster case, and the worm is rotated together with the height adjustment shaft by turning a knob attached to the outside of the adjuster case. By driving the rack and adjusting the amount of protrusion of the adjustment leg from the adjuster case, the posture of the home appliance main body such as the projection device can be adjusted up and down.

Hereinafter, description will be given based on an example in which the adjuster device of Embodiment 1 of the present invention is used in a projection device.
FIG. 1 is a perspective view illustrating a projection apparatus including the adjuster apparatus according to the first embodiment.
The projection apparatus (projector) shown in FIG. 1 includes a projection lens 2 on the front surface of the apparatus main body 1, and adjuster apparatuses 3 ₁ , 3 ₂ , and 3 ₃ are provided at the front left, right, and rear center of the apparatus main body 1, respectively. Are installed on the installation table T via the adjuster devices 3 ₁ , 3 ₂ , 3 ₃ . The adjuster devices 3 ₁ , 3 ₂ , and 3 ₃ have the same configuration, and the knobs 6 ₁ , 6 ₂ , and 6 ₃ for adjusting the respective heights are attached to protrude from the top plate of the device body 1. .

2 is an exploded perspective view showing the adjuster device according to the first embodiment of the present invention, FIG. 3 is a side sectional view illustrating the inside of the adjuster device, and FIG. 3A is a state in which the adjusting leg is retracted. FIG. 3B shows a state in which the adjustment leg is extended. FIG. 4 is a perspective view showing the external appearance of the adjuster device. FIG. 4A shows a state in which the adjustment leg is retracted, and FIG. 4B shows a state in which the adjustment leg is extended.
The adjuster device 3 according to the first embodiment includes a height adjustment shaft 4, an adjustment leg 7, and an adjuster case 11. The height adjustment shaft 4 has a worm 5 attached to the lower part and a knob 6 attached to the upper part. Thus, the height adjusting shaft 4 can be rotated.
The adjustment leg 7 is formed of a shaft having a quadrangular cross section, and a rack 8 that engages with the worm 5 is formed on one surface over a predetermined length, and a foot member 9 that contacts the support base is attached to the lower end. It has been.

The adjuster case 11 includes a front cover 12 and a rear cover 14, and the front cover 12 and the rear cover 14 are joined together by means such as screws, adhesion, welding, and welding.
The height adjusting shaft 4 is rotatably supported by a worm support portion 13 provided on the front cover 12 so that the upper portion thereof protrudes from an insertion hole 15 formed on the upper surface of the rear cover 14. . The adjustment leg 7 is fitted to the rear cover 14, and the foot member 9 protrudes from the lower end and is supported so as to be slidable up and down. In this state, the worm 5 and the rack 8 are engaged with each other. In order to restrict the movement range of the adjusting leg 7 and to prevent the adjusting leg 7 from falling off, the rear cover 14 is provided with a guide groove 16, and the protrusion 10 protruding from the adjusting leg 7 is inserted into the guide groove 16. ing.

  In the adjuster device 3 shown in FIGS. 3 and 4, the worm 5 rotates together with the height adjusting shaft 4 by turning the knob 6, thereby driving the rack 8 and allowing the adjusting leg 7 to slide up and down. In the example of FIG. 4, when the knob 6 is turned in the direction A, the adjustment leg 7 moves downward, and when the knob 6 is turned in the direction B, the adjustment leg 7 moves upward. Moreover, this structure can also support the weight of the projection apparatus main body.

FIG. 5 is a partially transparent view showing a state where the projection apparatus provided with the adjuster device is installed on the installation table. FIG. 5A shows a state where the projection apparatus is installed in parallel with the installation table surface. FIG. 5B shows a state in which the front part of the projection apparatus is installed high, and FIG. 5C shows a state in which the rear part of the projection apparatus is installed high.
In the example an adjuster device comprising a projection device of the present invention, the height of the left by turning the knob of the adjusting device 3 ₁ can be adjusted, thereby adjusting the right height by turning the knob of the adjusting device 3 _2. Even in such an apparatus, the projection position can be reliably adjusted without lifting the main body. Further, possible to adjust the rear portion of the height by turning the knob of the rear adjuster device 3 _3.

FIG. 3 is a perspective view illustrating a projection device including the adjuster device according to the first embodiment. 1 is an exploded perspective view showing an adjuster device of Embodiment 1. FIG. FIG. 3A is a side cross-sectional view showing the inside of the adjuster device, and FIG. 3A shows a state where the adjustment leg is retracted, and FIG. 3B shows a state where the adjustment leg is extended. FIG. 4A is a perspective view showing the appearance of the adjuster device, FIG. 4A shows a state in which the adjustment leg is retracted, and FIG. 4B shows a state in which the adjustment leg is extended. FIG. 5A is a perspective view partially showing a state when the projection apparatus provided with the adjuster device is installed on the installation table. FIG. 5A shows a state in which the projection apparatus is installed in parallel with the installation table surface. FIG. 5B shows a state in which the front part of the projection apparatus is installed high, and FIG. 5C shows a state in which the rear part of the projection apparatus is installed high.

Explanation of symbols

1 ... apparatus body, 2 ... projection _lens 3 (3 _1, 3 2, _{3 3)} ... adjusting device, 4 ... height adjustment shaft, 5 ... _worm, 6 (6 _1, 6 2, _{6 3)} ... knob, 7 ... Adjusting leg, 8 ... Rack, 9 ... Leg member, 10 ... Projection, 11 ... Adjuster case, 12 ... Front cover, 13 ... Worm support, 14 ... Rear cover, 15 ... Insertion hole, 16 ... Guide groove, T ... installation stand.

Claims (4)

  A height adjustment shaft having a worm; an adjustment leg having a rack that meshes with the worm; and an adjuster case that houses the height adjustment shaft and the adjustment leg including the meshing portion of the worm and the rack, and the height adjustment. An adjuster device for adjusting a protruding length of the adjusting leg from the adjuster case by rotating a shaft.   The adjuster device according to claim 1, wherein the adjuster case is attached to a device main body, and the weight of the device main body is supported by the worm and the rack.   3. The adjuster device according to claim 1, wherein a knob is provided on the height adjusting shaft, and the height adjusting shaft is rotated by the knob. 4.   A home appliance having the adjuster case of the adjuster device according to any one of claims 1 to 3 attached to a device main body, and the knob attached to a position aligned with an upper surface of the device main body.

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