An illuminative jack includes a lighting device disposed in a top plate and connected to a switch. When the user switches on the switch, the lighting device will be radiated by the power supplied by a power source, thus providing an illumination effect.

BACKGROUND OF THE INVENTION

1. Field of the Invention

The present invention relates to an illuminative jack including a lighting device disposed in a top plate of the jack, with the lighting device powered by a power source and controlled by a switch. Therefore, when the user switches on the switch, the lighting device will be radiated to illuminate a lifting object.

2. Description of the Prior Art

A jack is a device for lifting a heavy object and has the properties of easy movement and operation. Thus, the jack is widely used in various industries, and particularly in vehicle maintenance. Therefore, almost every vehicle has a need for a jack.

Since the jack is used for lifting a heavy object, in operation, the jack must be pushed to the bottom of the heavy object, such that the jack will be shaded by the shadow of the heavy object. Where there is insufficient light, particularly at night, the user may be unable to determine the position of a top plate of the jack. To solve this problem, the user has to adjust the position of the jack by by pushing it with one hand and to grip a lighting device by the other hand to illuminate the position between the jack and the bottom of the heavy object, which is inconvenient to the user. Moreover, the user may have no lighting device to use, so the conventional jack cannot meet the users' requirement.

SUMMARY OF THE INVENTION

The primary objective of the present invention is to provide an illuminative jack including a lighting device disposed in a top plate and connected to a switch. When the user switches on the switch, the lighting device will be radiated by the power supplied by a power source.

Since the lighting device is disposed in the top plate of the jack, in operation, the lighting device will be radiated by switching on the switch. When the user pushes the jack to the bottom of a heavy object, the bottom of the heavy object can be illuminated adequately. Thus, the user can see the position of the jack opposite to the bottom of the heavy object clearly to determine the distance and the position between the top plate and the lifted heavy object (since the top plate is in contact with the object directly, the lighting device disposed in the top plate has better illumination effect), and to prevent the jack from being affected by insufficient light (a dark area in particular). Moreover, the lighting device is disposed in the top plate, so the function of the top plate will not be hindered, making the present jack easy to operate and practical.

The present invention will become more obvious from the following description when taken in connection with the accompanying drawings, which show, for purpose of illustration only, the preferred embodiments in accordance with the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

Referring toFIG. 1, an illuminative jack10in accordance with the present invention comprises a lighting device2disposed in atop plate1of the jack10. The lighting device2is controlled by a switch3and is connected to a power source4(as shown inFIG. 1, the lighting device can be a bulb, LED or other luminaries). When the user switches on the switch3, the lighting device2will be radiated by the power supplied by the power source4, thus providing an illumination effect.

When the jack10of the present invention has an illumination effect (as shown inFIG. 2), the user can switch on the lighting device2via the switch3under a dark area according to the actual requirements (as shown inFIG. 3) to illuminate the bottom of a heavy object being lifted directly, thus solving the problem of insufficient light. Thereby, the user needn't grip a lighting device by the other hand, and the heavy object can be illuminated by adjusting the position of the jack10directly. Thus, the present invention is easy to operate.

In addition, the top plate1of the jack10is defined with a plurality of receiving grooves11(as shown inFIG. 4) for receiving the lighting device2, and a transparent cover5is provided for protecting the lighting device2.

Further, a pad6is covered on an upper portion of the transparent cover5to prevent the transparent cover5from being abraded when the lighting device2is not in use.

The switch3of the present invention can be connected to a timer7so that when the user switches on the switch3, the output power of the power source4can be cut off automatically after a scheduled time (such as three minutes), thus, preventing the waste of the power when the user forgets to switch off the switch3.

The pad6can be defined with a plurality of through holes61located correspondingly to the lighting device2of the top plate1(as shown inFIG. 5), so as to illuminate the lifting object directly.

While various embodiments in accordance with the present invention have been shown and described, it should be clear to those skilled in the art that further embodiments may be made without departing from the scope of the present invention.