FORKLIFT

Abstract

A forklift includes a cabin and a seat for use by a driver arranged in the cabin. The cabin has a lateral opening to enter and exit the cabin, and the seat is mounted rotatably relative to the cabin. There is a safety bracket for preventing the driver from involuntarily exiting the cabin through the lateral opening, and for providing lateral impact protection. The safety bracket is mechanically connected to the seat to be rotatable together with the seat.

Claims

1. A forklift having a cabin and a seat for use by a driver arranged in said cabin, said cabin having a lateral opening to enter and exit said cabin, wherein said seat is mounted rotatably relative to the cabin and wherein there is provided a safety bracket for preventing said driver from involuntarily exiting said cabin through said lateral opening and for providing lateral impact protection, wherein the safety bracket is mechanically connected to said seat to be rotatable together with said seat and wherein the seat and safety bracket are jointly rotatable with respect to a substantially vertical axis such that the seat is rotatable between a first position in which the safety bracket is positioned so as to facilitate entry to and exit from the seat in the cabin, and a second position in which the seat is oriented substantially in a forward driving position and the safety bracket is positioned so as to prevent the driver from involuntarily exiting the cabin through the lateral opening.

2. The forklift according to claim 1, wherein the cabin comprises a roof structure located substantially above the seat, wherein the safety bracket extends to a height greater than one third and less than two thirds of the distance between the sitting surface of said seat and a bottom surface of said roof structure.

3. The forklift according to claim 1, wherein the cabin comprises a roof structure located substantially above the seat, wherein the safety bracket extends at least from a sitting surface of said seat to a height substantially halfway of the distance between a sitting surface of said seat and a bottom surface of said roof structure.

4. The forklift according to claim 1, wherein the cabin comprises a roof structure located substantially above the seat, wherein the safety bracket extends to substantially the same height between a sitting surface of said seat and a bottom surface of said roof structure in both the first position and the second position of the seat.

5. The forklift according to claim 1, wherein by jointly rotating the seat together with the safety bracket from said first position into said second position, the safety bracket is rotated from a position where it is arranged at least partially away from the lateral opening and at least partially inside the cabin to a position where the safety bracket is substantially completely arranged in the lateral opening.

6. The forklift according to claim 1, wherein the bracket comprises at least a first section extending substantially upwards from a sitting surface of said seat and a second section extending substantially upwards from a sitting surface of said seat, and a connecting portion at an upper end of the safety bracket for connecting the at least first and second section.

7. The forklift according to claim 6, wherein said first section extends upwards from the sitting surface at an incline to a substantially vertical axis so that the safety bracket tapers towards an upper end.

8. The forklift according to claim 6, wherein said at least first section is arranged at a front end of said seat and said second section is arranged at a back end of said seat.

9. The forklift according to claim 6, wherein said at least first section of the safety bracket remains substantially upright in said first position and said second position of the seat.

10. The forklift according to claim 1, wherein the safety bracket is at least sectionwise of a tubular shape with a substantially circular cross section.

11. The forklift according to claim 1, wherein the safety bracket is of a one-piece structural design.

12. The forklift according to claim 1, wherein said cabin comprises a floor with at least a first floor surface having a first width at a lateral opening of the cabin and at least a smaller second width inside the cabin at a distance from the lateral opening, wherein starting from the lateral opening the width of the floor is tapering towards the second width inside of the cabin.

13. The forklift according to claim 12, wherein a sitting surface of said seat is clear from said at least first surface of the floor in the first position of the seat and said sitting surface of said seat at least partially has an overhang over said at least first surface of the floor in the second position of the seat.

14. The forklift according to claim 1, wherein said safety bracket extends at least from a sitting surface of said seat to an upper end of a backrest of said seat.

15. The forklift according to claim 1, wherein in said forward driving position said seat is oriented with an angle between 3° and 9°, preferably about 5°, relative to the forward driving direction of said forklift.

16. The forklift according to claim 1, wherein said seat is additionally rotatable into a third position suitable for rearward driving.

17. The forklift according to claim 1, wherein there is provided at least one arm rest for said seat.

18. The forklift according to claim 1, wherein there is provided a locking mechanism for releasably locking rotation of said seat in at least one position.

19. The forklift according to claim 18, wherein there is provided a release device for releasing said locking mechanism and allowing rotation of said seat.

20. The forklift according to claim 1, wherein said safety bracket is rigidly mounted to a mounting platform of said seat.

21. The forklift according to claim 1, wherein said safety bracket is pivotably mounted relative to said seat.

22. The forklift according to claim 1, wherein said forklift is a truck-mounted forklift.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Embodiments of the invention are shown in an exemplary way in the figures: FIG. 1 shows a forklift according to the invention in perspective view;

[0018] FIG. 2 shows the cabin of the forklift of FIG. 1 in isolated view with the seat in forward driving position;

[0019] FIG. 3a shows the cabin in side view with the seat in entry position;

[0020] FIG. 3b is a top view with respect to FIG. 3a;

[0021] FIG. 4a shows the cabin in side view with the seat in forward driving position;

[0022] FIG. 4b is a top view with respect to FIG. 4a;

[0023] FIG. 5a shows the seat in an isolated view from the front of the forklift; and

[0024] FIG. 5b shows the seat in an isolated view from the rear of the forklift.

DETAILED DESCRIPTION OF THE INVENTION

[0025] The figures show a truck-mounted forklift 1 having a cabin 2 and a seat 3 for use by a driver arranged in the cabin 2.

[0026] The cabin 2 has a lateral opening 4 to enter and exit the cabin 2. The seat 3 is mounted rotatably relative to the cabin 2.

[0027] There is provided a safety bracket 5 for preventing a driver from involuntarily exiting the cabin 2 through the lateral opening 4 and for providing lateral impact protection. According to the invention the safety bracket 5 is mechanically connected to the seat 3 to be rotatable together with the seat 3. The safety bracket 5 can be used as a handgrab by the driver when entering the cabin 2.

[0028] The safety bracket 5 rotates together with the seat 3 in an upright position. The safety bracket 5 extends from the sitting surface 7 of the seat 3, or more specifically from the seat mounting frame 9 under the seat 3, to an upper end of the backrest 8 of the seat 3 and in the shown embodiment extends for a distance beyond the upper end of the backrest 8.

[0029] In the shown embodiment mechanical coupling is being done by rigidly mounting both the seat 3 and the safety bracket 5 on a mounting frame 9 (with the possible exception of slidably moving the seat 3 along the mounting frame 9 in order to adjust distance between seat 3 and a forward end of the cabin 2 where driving controls are arranged, however the safety bracket 5 does not have to be slidably mounted to the mounting frame 9). The mounting frame 9 is rotatable relative to the cabin 2 and can be releasably locked by a locking mechanism in two different positions: [0030] a first position in which entry and exit of the cabin 2 is facilitated [0031] a second position in which the seat 3 is oriented substantially in a forward driving position looking towards a driving wheel 11 and pedals 12 (note that in the shown embodiment the forward driving position the seat 2 is oriented with an angle about 5° relative to the forward driving direction of the forklift 1).

[0032] It would also be feasible to provide a third position in which the seat 3 is oriented suitable for rearward driving.

[0033] In an alternative embodiment, the seat 3 and the safety bracket 5, which are mechanically connected, part rotatably to the mounting frame 9.

[0034] In the shown embodiment the seat 3 has to be rotated by the driver without support by a rotation drive except for a spring device which biases the mounting frame 9 in rotation direction from the second to the first position. A release lever 10 releases a locking mechanism which locks rotation of the mounting frame 9 in the first and second position. The locking mechanism can comprise a cam that can be swivelled against the force of a spring by the release lever 10. In the shown embodiment the release lever 10 is arranged on the left side of the seat 3 (cf. FIG. 5a) although it could be positioned elsewhere. The shown placement minimizes danger of accidentally opening the locking mechanism. By way of example, to release the seat 3 in the second position it has to be pushed rearward to be rotatable into the first position (rearward motion to enable outward rotation is a natural movement for a driver). A release of the seat 3 in the second position by pushing the release lever 10 in the opposite, forward position for the seat 3 to be rotatable into the first position can also be envisioned.

[0035] To increase comfort for the driver there is provided an arm rest 6 for the seat 3 (cf. FIG. 5b). The arm rest 6 is pivotally mounted to the seat 3. In FIG. 5b rotation of the seat 3 into a third position for rearward driving is permitted by pivoting the arm rest 6 (in the shown embodiment by pushing the arm rest 6 outward, i.e. away from the sitting surface 7 of the seat 3).

[0036] As shown in FIGS. 5a and 5b the seat 3 can be provided with a seat belt.

[0037] There might be provided a sensor detecting the swivel position of the seat 3 in order to only allow driving of the forklift 1 if the seat 3 is in forward driving position.

List of Reference Signs

[0038] 1 forklift

[0039] 2 cabin

[0040] 3 seat

[0041] 4 lateral opening

[0042] 5 safety bracket

[0043] 6 arm rest

[0044] 7 sitting surface of seat

[0045] 8 backrest of seat

[0046] 9 mounting platform of seat

[0047] 10 release lever

[0048] 11 driving wheel

[0049] 12 pedal