Extraction device

The invention relates to a slide device having the features of The preamble of claim 1.

From US-PS 4,950,123 a fuse puller of this type is known, in Context is used with the loading floor of a truck. With this extractor, the loading floor of the truck after be pulled back, which facilitates the loading. The rear ends of Pull-out rails are connected together via a transverse bar. At this Transverse beam, a pivotable lever is hinged, in its turn with horizontal Bolts lying is connected, extending transversely to the extractor. Parallel to the pullout, an operating rod is mounted with which the pivotable lever is actuated. The transverse Bolzano, with its mounted at one end in a respective hole in the vertical web of the pull-out are, are axially displaceable by pivoting of said lever. In the carcass rail and the also provided central rail are now some Bores, into which can engage these pins. By snapping this bolt is the mobility of the tracks played blocked. However, this blocking assumes that these Bolzano both in the space provided for their mounting holes in the middle rail as well can lock into the cabinet member, what their aligned position requires.

Also, in the fuse puller for the loading floor in a motor vehicle according to EP 314 176 A2 a blocking device is provided. This blocking device consists of spring-loaded bolt by means of a draw bar axially are displaced and engage in holes in the vertical web of the fixed Carcass rail are recessed. The axially displaceably mounted Bolts are provided on the retractable loading platform. Upon actuation of the Drawbar the cargo floor is to be noted here, so that the mentioned Bolt against the spring force acting on them are at all adjustable.

Finally, it should be mentioned the 2207/96 puller to A in which is also a spring-loaded pin of the means of a parallel to is extension rails disposed operating rod acted upon, with a Perforated strip cooperates, which is fixedly provided on the carcass rail and parallel to this.

Pullers are used in cars to the loading floor to make extendable. This case in particular operational and rescue vehicles sometimes weighty equipment and devices carry. Can the loading floor be extracted, placed on the such devices and apparatuses are, their accessibility is much easier. In workshops Cart in turn, a plurality of drawers are normally provided, which are burdened with weighty tools. In all these cases must ensure be that the most moving easily extractors not automatically set in motion when, due to the movements of the vehicle Acceleration forces acting on them.

It is also known extractors in furniture with representational bodies to provide to the pull-out furniture part in a predetermined hold and desired position. Such a design shows and describes US 3,700,301 A, and in conjunction with so-called ball bearing slides. Above such a ball guide, over which a corpus of Piece of furniture is connected to the pull-out furniture part, is attached to the body wall and above the ball guide set a rack. With the pullout Furniture part a toothed segment is connected, which, via a pivoting lever One side is performed in a vertical backdrop, raised or on the Rack can be lowered. The runs to planned shift rod parallel with the rack and is against the force of a spring. The shift rod is mounted on the pull-out furniture part. This mechanism is unprotected and can probably only related to furniture in closed used spaces. For use in motor vehicles, this is unprotected Mechanics unsuitable. The rough operation, where such vehicles are subjected, this mechanism would pollute too much and thereby damaged or even unusable.

A so similar construction shows and describes the US 2,739,027 A, also in connection with a so-called ball guide for drawers. As a latch member, which attached to a fixed, on the furniture body Rack can be placed in operative connection, on the one serves one end of a pivotable angle lever arranged pins at the other end of this Angle lever engages a bearing on the pull-out rail shift bar, which is displaceable against the force of a spring. Here is this mechanism between the body wall and side wall of the pull-out furniture part open and unprotected.

Finally in this context is still the cupboard drawer according US 3,367,732 to mention. Here is laying down the excerpt length of pull Furniture part, a transmission used with a cantilevered bevel gear, against which a spring force an abutment is pressed. These provided herein mechanism is indeed below the bottom of the extendible arranged furniture cabinet and in this way better against pollution protected as the constructions described above, however, this is Construction so complex that it has not found its way into practice.

Starting from this prior art the invention proposes a puller before that for a relatively rough operation in connection with motor vehicles is used, this extractor is designed so that the the Blocking parts serving as possible and free of mechanical Agents are protected from the outside, in addition to the up to today moving parts to reduce friction and oil or be lubricated with these lubricated and oiled parts removed from the immediate access should be. The invention solves this complex problem by those measures, the content and subject matter of the characterizing part of claim 1 are.

Furthermore, the invention aims on making the blocking device so, that it is automatically effective upon actuation of the fuse puller and in turn exerts its function when the puller is released becomes.

Embodiments of the invention are described with reference to the drawing, without the invention thereby restricting. Show it:<sl><li>Figure 1 is a plan view of a fuse puller.</li><li>2 shows a cross section along the line II-II in Fig. 1.</li><li>Fig. 3 is a plan view of the front side of the fuse puller; </li><li>a partial cross section of FIG. 4 through the front of the pullout the section line IV - IV in FIG. 3;</li><li>Figures 5 and 6 each show a longitudinal section through the blocking device.</li><li>7 is a view of the blocking device.</li><li>8 is a cross section along the line VIII - VIII. 5 and in Fig.</li><li>FIGS. 9 and 10 show longitudinal sections according to the type of FIG. 5 and 6 and by two further different embodiments of the blocking device.</li></sl>

The pullout, which is shown in Fig. 1 in top view, has pairs provided, fixed Cabinet members 1, to which with here Rolling bodies shown the pull-out rails 2 are mounted. With the extension rails 2, for example, a not shown here loading floor be connected a motor vehicle. The mutual spacing of the pairs of rails can be arbitrarily chosen and is not essential to the invention. The two pull-out rails 2 are at their front end with a front plate 3 which serves as a carrier for an here U-shaped handle, whose Opening width W is about the width of an adult human hand equivalent.

Fixed and connected here via a transverse beam 5 with the rail 1 a box profile 6 is provided, which extends parallel to the rails 1 and 2. FIG. In this case section 6 is a rack 7, the rear with her End is fixed to the cross member 5 and the freely projects forward and in a further profile rail 8 projects, which has a U-shaped cross section whose open Side against one of the rail pairs 1, 2 faces. The rack 7 extends over a little more than half the length L of the puller.

In the rear portion of the cross-sectionally U-shaped profile rail 8 in Fig. 1 indicated by the dashed line 9, there are two guides 10 and 11, in Longitudinal direction of the rail 8 distanced from each other, and with this example, by screws, not shown here firmly connected. These guides consist of plastic blocks, each with a tunnel-like opening 12 and 22 through which the toothed rod 7 is guided. This expediently made of plastic guides 10 and 11 are, for example, by Screws connected to the rail. 8

spaced from one another between these two in the longitudinal direction of the profile rail 8 Guides 10 and 11 is a straight toothed segment 13 with an average elongated opening 14 which having a cam 15 shaft 16 is penetrated. Two blind holes 17 at the top of the straight toothed segment 13 take little springs 18 which is on the upper inner wall the rail 8 support and push the toothed segment down. Lateral Covers 19, also suitably connected with the rail 8, used to secure the straight toothed segment 13. One end the shaft 16 is fixedly connected to a crank-like lug 20th At this tab 20 engages a spring 21, which with its other end 34 fixed to the Guide 11 is fixed. The position of the crank-like plate 20, which by the preloaded spring 21 is limited, is shown in FIG. 7 corresponds to visible and the engaging position of the sector gear shown in FIG. 5 13. At the crank-like tab 20 is beyond the fixed one end of a cable 23rd This cable 23 extends within the rail 8 and is at its front-side end (Fig. 3) guided around a freely rotatably mounted deflection roller 24th The end 25 of the control cable 23 is attached to the lever 26 in the plane stored of the handle 4 is displaced (arrow 27).

When not actuated puller the force of the spring 21 keeps the crank-like Tab 20 in the manner shown in Fig. 7 position, while the sector gear 13 is in meshed with the stationary rack 7 (FIG. 5). The puller is thus blocked. The lever 26 in this case covers a portion of the opening 28 of the U-shaped handle 4. The locking means is in each of the possible Layers of the guide rail 1 and pull-out rail 2 in the active position. Becomes now operates the extractor while the handle 4 acted, urges which engages in the opening 28 of the handle 4 Hand the displaced Lever 26 mounted to the left (Fig. 3 and Fig. 4), whereby the cable 23 relative is verkürst and thus the flap 20 is pivoted to the shaft 16, the Cam 15 the straight toothed segment 13 lifts against the force of the springs 18, and this is the meshing engagement between the toothed segment 13 and the rack 7 is released (Fig. 6). Now, the puller can be operated. When the handle 4 is released, so pulls the tensioned spring 21 on the flap 20, the shaft 16 back to its original position (Fig. 5) and back the straight sector gear 13 engages in turn meshingly in the stationary rack 7 a. The 3 and 4 left in Fig. Cheek 29 of the U-shaped handle 4 has a shoulder 30. Here in this paragraph 30, the thumb of engaging Hand are applied, which facilitates the displacement of the lever. Here, the thumb can be applied at the top or at the bottom paragraph.

In the embodiment described above, the sector gear 13 as straight, square-shaped building component formed.

Fig. 9 now shows an embodiment in which the gear segment 13 to be free rotatably mounted pinion is designed. In the guide 10 here is to Longitudinal extension of the profile rail 8 parallel bore for receiving a pin-shaped locking member 31 is provided, which in under the force of a spring 32 a tooth gap of the toothed segment 13 engages positively and so the rotation this pinion blocked. One end of this latch member 31 is connected to the Cable 23. The spring 31 corresponds to what relates to its function, the spring 21 when erstbesprochenen embodiment. These springs ensure the Blocking means when the extractor is not operated.

In the embodiment of FIG. 10, the sector gear 13 is pivoted as mounted, lever-type locking member 31 is formed. This locking member is provided with mounted at one end in the guide 11th The front end of this latch member 31 is connected to the cable 23rd A spring 33 presses this control element in its position of engagement with the rack. 7

When erstbesprochenen embodiment, the guides 10 and 11 are used with their tunnel-like holes 12 and 22 both for guiding the toothed segment 13 as well as for guiding the rack 7. The other two discussed Embodiments according to FIGS. 9 and 10 are the guides 10 and 11 for guiding the rack 7. For designed as a pinion gear segment 13 have these two guides 10 and 11 is no immediate function. but well serves the guide here 10 for receiving a pin-like or bolt-like locking member 31 is the embodiment according to FIG. 10, a guide 11 formed as a bearing for the pivot axis of the lever Latch member. The other guide 10 has a longitudinal bore for implementation of the cable 23rd

Thanks to the measure described above, the blocking device is best protected against contamination and possibly oiled or lubricated Parts are also removed from the immediate access.

In the embodiment shown, the axes of the teeth of the toothed segment and the rack is substantially parallel to the puller level. This parallel orientation of the axes of the teeth is not essential for the invention. Basically could, which consists of rack 7 and toothed segment 13 Assembly can be rotated so that the axes of said teeth essentially standing at right angles to the plane extractor. Furthermore it would be possible, the adjustable toothed segment with the guide rail 1 to connect. The rack was then with its front end to the slide define. The sector gear 13 would be at the front of the Puller are.

legend

TO THE REFERENCE NUMBERS:

<dl tsize="3" compact="compact"><dt>1</dt><dd>cabinet member</dd><dt>2</dt><dd>pull-out</dd><dt>3</dt><dd>front panel</dd><dt>4</dt><dd>handle</dd><dt>5</dt><dd>transverse spar</dd><dt>6</dt><dd>box profile</dd><dt>7</dt><dd>rack</dd><dt>8th</dt><dd>rail</dd><dt>9</dt><dd>dotted line</dd><dt>10</dt><dd>guide</dd><dt>11</dt><dd>guide</dd><dt>12</dt><dd>tunnel-like opening</dd><dt>13</dt><dd>toothed segment</dd><dt>14</dt><dd>opening</dd><dt>15</dt><dd>cam</dd><dt>16</dt><dd>wave</dd><dt>17</dt><dd>blind hole</dd><dt>18</dt><dd>feather </dd><dt>19</dt><dd>cover</dd><dt>20</dt><dd>flap</dd><dt>21</dt><dd>feather</dd><dt>22</dt><dd>tunnel-like opening</dd><dt>23</dt><dd>cable</dd><dt>24</dt><dd>idler pulley</dd><dt>25</dt><dd>end</dd><dt>26</dt><dd>lever</dd><dt>27</dt><dd>arrow</dd><dt>28</dt><dd>opening</dd><dt>29</dt><dd>cheek</dd><dt>30</dt><dd>paragraph</dd><dt>31</dt><dd>latch member</dd><dt>32</dt><dd>feather</dd><dt>33</dt><dd>feather</dd><dt>34</dt><dd>end</dd></dl>