In, e. g., EP 0 117 505 there is disclosed a device essentially of the above- mentioned type, but where a considerable part of the height adjustment device for the rail remains attached to the stand after the rail has been removed therefrom. A removal of the rail from the stand, e. g. in connection with moving the saw, causes the latter to remain unnecessarily heavy and space consuming and moving becomes a time-wasting process. In addition the height adjustment device is complicated, involving a great many screws.

The object of the invention is to provide a device of the above-mentioned type which is not encumbered by the above-mentioned disadvantages.

This object is achieved with a roller table device according to the invention with the characteristic features indicated in the claim.

The invention will now be described in more detail with reference to the drawing which schematically illustrates embodiments of the device according to the invention.

Fig. 1 is a perspective view of a carpenter's and joiner's power saw according to the invention.

Fig. 2 is a perspective view of a portion of the carpenter's and joiner's power saw which is illustrated in fig. 1, viewed in the direction of the arrow A, i. e. from the side of the power saw which is arranged to face a roller table, which may be employed in connection with the power saw.

As illustrated in fig. 1, a carpenter's and joiner's power saw according to the invention comprises a stand 2 with a tabletop 4. In the tabletop there is

provided a slot 10. A saw blade 12 is arranged to be moved up and down in the slot 10.

At one side of the stand there is provided a horizontally extending roller table 30, with a number of freely rotatable rollers 32 on which the materials which have to be sawn can rest. The end of the roller table 30 which faces the stand 2 is arranged to rest slidably on a rail 34, which extends parallel to a lateral edge of the tabletop 4, and which by means of an adjustment device 36 can be set in the vertical direction for adjustment of the roller table, thus enabling the materials which have to be sawn to be moved towards the saw blade at the correct height, and they may also rest on the tabletop 4.

Fig. 2 illustrates the adjustment device 36 for the rail 34.

To each end portion of the rail 34 there is attached a downwardly projecting, externally threaded pin or screw 110, on to which there is screwed a nut 114.

To the stand 2 and under each end of the rail 34 there is attached an angular bracket 116 with a vertical portion 118 which is arranged to abut against a vertically extending portion 120 of the stand 2, and with a horizontal portion 122. In the horizontal portion 122 there is provided a through-going, elongated hole or slot 112 which extends perpendicularly towards the vertical portion. The nut 114 can rest with its radially external portion against the slot's edge portions. A holder device in the form of a fixing screw 124 on to which there is threaded a disc (not shown), extends through the slot from below and is screwed into a central, threaded hole of the pin 110, the disc being similarly arranged to abut against the slot's edges. A person skilled in the art will understand that instead of a fixing screw 124 which is screwed into the screw 110, a different holder device from the fixing screw 124 may be employed, such as a counter nut (not shown) which is screwed on to an end portion of the screw 110 which projects out of the hole 112 on the underside of the horizontal portion 122.

In the vertically extending portion 120 of the stand there are provided two keyhole-like holes 126 and 128. On the side of the vertically extending portion 118 of the angular bracket 116 which faces the stand 2, the angular bracket 116 has two pins, each of which has a narrow portion and a head (not shown). The head can be inserted in the wide portion of the holes 126,128, and by lowering the bracket the narrow portion of the pins can extend

through the narrow portion of the holes. The bracket carries a securing device in the form of a handle 130 with a screw (not shown) which is screwed into a threaded hole which is provided in the vertical portion 118 of the angular bracket 116. When the pins have been inserted in the respective holes 126, 128, the handle 130 can be rotated, whereby its screw is pressed against the stand's vertical portion 120, thereby locking the angular bracket thereto.

An adjustment of the rail 34 in the height direction can be performed by loosening the fixing screw 124. The nut is then rotated on the pin 110 whereby the rail is moved either up or down. When the desired position of the rail has been attained, the fixing screw 124 is tightened once again.

Adjustment of the rail 34 in the direction towards and away from the tabletop 4 can be achieved in a similar manner by loosening the fixing screw 124, moving the pin 110 along the slot 112 until the rail is located in a desired position, and renewed tightening of the fixing screw 124.

It will be understood that the rail 34 and its adjustment device 36 may easily be removed from the stand by releasing the angular brackets 116 from the stand. In the same way the rail 34 can equally easily be attached to the stand by renewed attachment of the brackets thereto without the relative position of the adjustment device's components being altered.