JP3403686B2 - In-vehicle ladder enclosure - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an in-vehicle ladder storage device for storing a folding ladder in a vehicle. The “folding ladder when placed flat” described in the present invention means a state in which the left and right columns of the closed folding ladder are laid on a floor or the like. 2. Description of the Related Art FIG. 5 is a perspective view of a conventional vehicle-mounted ladder storage device. The vehicle 100 is an example of a service vehicle,
101 is a vehicle floor, 102 is a rear opening, and has a rear gate (not shown). The folding ladder 110 includes left and right supports 111,
111 shows a plurality of steps 112...
(The same applies hereinafter.) Two ladders 113 are prepared, and one end of each of the ladders 113 is stopped by a pin 114 so that the ladders 113 can be folded. [0003] The vehicle-mounted ladder storage device 120 is mounted on the vehicle floor 101.
And a plurality of rollers 121.
21 and a clamp mechanism 123 provided on the upper inner surface of the storage frame 122.
00 is stored in the storage frame 122 in a vertically placed state as indicated by a white arrow from the rear opening 102, and the folding ladder 110 is pressed against the rollers 121 by a clamp mechanism 123. FIG. 6 is a diagram for explaining the operation of a conventional vehicle-mounted ladder storage device.
A value of 0 causes the folding ladder 110 to be stowed vertically and stored, resulting in poor stability of the folding ladder 110 and an increase in noise during traveling of the vehicle 100. Further, in order to store the folding ladder 110 in a state of poor stability, a firm clamping mechanism 123 is required. If the clamp mechanism 123 is not provided, there is no component for restricting the movement, so a large space is required so as not to hit the periphery. In any case, the space factor of the vehicle floor 101 of the vehicle 100 is deteriorated.
Further, an operation of clamping the folding ladder 110 after being stored occurs, and the storing operation of the vehicle-mounted ladder storage device 120 becomes complicated. SUMMARY OF THE INVENTION It is an object of the present invention to provide a vehicle-mounted ladder storage device which can store a folding ladder in a stable state and has good storage stability when storing. [0006] In order to achieve the above object, a first aspect of the present invention is to provide two ladders each of which extends over a plurality of steps to left and right columns, and connects one end of each of the ladders to a pin. In a vehicle-mounted ladder storage device that stores a folding ladder that can be folded by stopping at a vehicle, two rails laid on a vehicle floor to place the left and right supports of the folding ladder when laid flat while sliding. It consists of a side guide that stands on the side of the rail so that the folding ladder does not swing left and right, and a centering guide that centers the folding ladder by pushing the inner surfaces of the left and right pillars outward in the width direction of the folding ladder. Features. [0007] The folding ladder is laid flat and placed on two rails laid on the vehicle floor while sliding the left and right supports of the folding ladder, and guided by side guides so that the folding ladder does not swing left and right. The folding ladder is stored in the vehicle-mounted ladder storage device while centering the folding ladder by pushing the inner surfaces of the left and right columns outward in the width direction of the folding ladder. [0008] By placing the folding ladder flat and storing it in the vehicle-mounted ladder storage device, for example, a stable state of the folding ladder can be ensured while the vehicle is running without a strong clamp. Slide the left and right struts of the folding ladder on the two rails, guide them with side guides so that the folding ladder does not swing left and right, and push the inner surfaces of the left and right struts of the folding ladder outward in the width direction of the folding ladder. With this arrangement, the folding ladder is stored in the vehicle-mounted ladder storage device while centering the folding ladder, so that the folding ladder can be easily stored. Embodiments of the present invention will be described below with reference to the accompanying drawings. Note that "before", "after",
“Left”, “right”, “up”, and “down” follow the direction viewed from the driver, and Fr indicates the front side, Rr indicates the rear side, L indicates the left side, and R indicates the right side. Also, the drawings should be viewed in the direction of reference numerals. FIG. 1 is a perspective view of a rear vehicle on which a vehicle-mounted ladder storage device according to the present invention is mounted.
1 is an example of a service vehicle in which a vehicle-mounted ladder storage device 30 for storing a folding ladder 20 is mounted. In addition, 1
2 is a rear opening, 13 is a rear gate mounted on the rear opening 12 so as to be freely opened and closed, 14 is a rear wheel, 15 is a rear bumper, 16
Indicates a roof, and 17 and 17 indicate rear side windows. The folding ladder 20 includes left and right supports 21 and
The ladder 23, which passes a plurality of steps 22.
One of these ladders 23, 23
4, the ladders 23 are spread out and used in a straight line when used, and folded and stored when stored in the vehicle 10. 27 and 27 are the top of the folding ladder 20, 28 and 28 are the ends of the folding ladder,
Reference numeral 29 (one 29 is not shown) indicates stopper pins provided on the tops 27, 27. FIG. 2 is a sectional view taken along the line 2-2 of FIG. In-vehicle ladder storage device 30
Is a storage plate 31 that is mounted on the vehicle floor 11 (see FIG. 1) to store the folding ladder 20 in a flat stack;
1 and left and right rails 32, 32 which enable the folding ladder 20 to slide, and these rails 32, 3.
A pair of side guides 33L and 33R for guiding the folding ladder 20 by being provided on both sides of the folding ladder 20, and a front end portion 31a of the storage plate 31 so as to resiliently project outward in the width direction of the folding ladder 20.
A centering guide 34 that centers the tops 27, 27 of the folding ladder 20 from the inside and presses the tops 27, 27 outward in the width direction of the folding ladder 20.
A pair of end guides 35, 35 for positioning the end portions 28, 28 of the folding ladder 20 by being attached to the rear end 31 b of the storage plate 31, and these end guides 35, 3
5. Centering guide 34, side guide 33L, 3
A storage tunnel 36 for storing the folding ladder 20 by covering the 3R, the rails 32, 32 and the storage plate 31;
Of the folding ladder 2 by forming the front end 31a of the
And a slope 37 for preventing the top portion 27 from being caught when 0 is pulled out. The centering guide 34 includes an arm 43 on which a roller 42 is rotatably mounted, and a tension spring 4 for urging the arm 43 to the side of the storage plate 31 (in the vehicle width direction).
4 are prepared, and these roller units 41, 41 are swingably attached to the storage plate 31 via support pins 45. 4
6 and 46 are roller shafts, 31c and 31c are rollers 42,
An arc hole formed to project 42 from the surface of the housing plate 31 is shown. The rails 32 are provided with inclined portions 32a along the slope 37 of the storage plate 31. The side guides 33L and 33R include circular arc portions 39L and 39R for guiding the folding ladder 20, and the side guides 33L and 33R
1, they are arranged so as to be symmetrical with respect to the center line C of the storage plate 31 and to make the rear end 31 b of the storage plate 31 wider. FIG. 3 is a sectional view taken along line 3-3 of FIG. 1, showing a side view of the vehicle-mounted ladder storage device.
Two ladders 23 are prepared by passing a plurality of steps 22... To left and right supports 21, 21 (one not shown), and these ladders 23, 23 can be folded by stopping one ends of the ladders 23 with pins 24. Vehicle 10 (see FIG. 1)
In the in-vehicle ladder storage device 30 to be stored in the vehicle, the left and right supports 21 and 21 (one not shown) located on the side of the storage plate 31 of the folding ladder 20 when laid flat are laid on the vehicle floor 11 to slide. Two rails 32, 32 (one 32 not shown) and side guides 33L, which are set up beside the rails 32, 32 so that the folding ladder 20 does not swing left and right,
33R (not shown) and a centering guide 34 for centering the folding ladder 20 by pushing the inner surfaces of the left and right columns 21 outward in the width direction of the folding ladder 20. That is, the vehicle-mounted ladder storage device 30 comprises two rails 32 laid on the vehicle floor 11 with the folding ladder 20 laid flat, and the right and left columns 21 and 22 of the folding ladder 20.
1 is slid, and the folding ladder 20 is guided by the side guides 33L and 33R so as not to swing left and right, and the left and right columns 21 and 21 located on the storage plate 31 side of the folding ladder 20.
The center of the folding ladder 20 is stored while the folding ladder 20 is centered by pushing the inner surface of the folding ladder 20 outward in the width direction of the folding ladder 20. Further, since the vehicle-mounted ladder storage device 30 stores the folding ladder 20 in a flat state, for example,
Folding ladder 2 during vehicle running without strong clamping
0 can be stored in a stable state. Further, the vehicle-mounted ladder storage device 30 places the left and right supports 21 and 21 of the folding ladder 20 on the two rails 32 and 32 while sliding them.
The side guides 33 so that the folding ladder 20 does not swing right and left.
L, 33R guide the inner surfaces of the left and right columns 21, 21 located on the storage plate 31 side of the folding ladder 20 with the folding ladder 2.
Since the folding ladder 20 is stored while being centered by pushing the folding ladder 20 outward in the width direction of 0, it is possible to improve the storability of the folding ladder 20 at the time of storage. The operation of the above-described ladder storage device 30 will now be described. FIGS. 4A to 4C are explanatory diagrams of the operation of the vehicle-mounted ladder storage device according to the present invention, and show a procedure for storing the folding ladder 20 in the vehicle-mounted ladder storage device 30. 2A, the rails 32 attached to the storage plate 31 with the tops 27 of the folding ladder 20 inclined forward.
The tops 27, 27 of the folding ladder 20 are placed on the reference numeral 32 as shown by arrows. In FIG. 2B, the folding ladder 20 is moved toward the front end 31a of the storage plate 31 as shown by an arrow so as to slide on the rails 32,32. At this time, the top 27 of the folding ladder 20 is gradually guided by the left and right side guides 33L and 33R. And folding ladder 2
Move the top 27 of 0 to the centering guide 34,
The inner surfaces of the supporting columns 21 and 21 on the storage plate 31 side are brought into contact with the rollers 42 and 42 (one of which is not shown) of the centering guide 34. Since the centering guide 34 is disposed, even when the folding ladder 20 has a narrow portion such as the top 27, 27, the roller 42 is resiliently outwardly in the width direction of the folding ladder 20 as indicated by an arrow. The working ladder 20 can be made to work, and the folding ladder 20 can be pressed. In (c), the folding ladder 20
Is moved as shown by the arrow, and the column 21 is pressed by the roller 42 as shown by the arrow, and the end guides 35, 35 (one not shown)
, The end portions 28, 28 of the folding ladder 20 are positioned, and the storage of the folding ladder 20 is completed. That is, the folding ladder 20 is stored centering on the folding ladder 20 by pressing the inner surfaces of the left and right columns 21 and 21 located on the storage plate 31 side of the folding ladder 20 outward in the width direction of the folding ladder 20. In the embodiment, as shown in FIG. 2, the folding ladder 20 is pressed outward in the width direction of the folding ladder 20, but the present invention is not limited to this, and the folding ladder 20 is pressed against the vehicle floor 11. It may have an up / down holding mechanism. Also, when the folding ladder 20 shown in FIG. 1 is used by spreading the ladders 23 and 23 in a straight line, the upper ladder 23 can be extended telescopically or can be extended or retracted. It may be a ladder. According to the present invention, the following effects can be obtained by the above-mentioned structure. Claim 1 has two rails laid on the vehicle floor for slidingly mounting the left and right supports of the folding ladder when placed flat, and the side standing on the side of the rail so that the folding ladder does not swing left and right. Since the in-vehicle ladder storage device is composed of a guide and a centering guide for centering the folding ladder by pushing the inner surfaces of the left and right pillars outward in the width direction of the folding ladder, the vehicle remains stable even while the vehicle is running. The folding ladder can be stored, and the storage property at the time of storing the folding ladder can be improved.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a rear vehicle on which a vehicle-mounted ladder storage device according to the present invention is mounted. FIG. 2 is a cross-sectional view taken along the line 2-2 of FIG. FIG. 4 is an explanatory view of the operation of the vehicle-mounted ladder storage device according to the present invention. FIG. 5 is a perspective view of the conventional vehicle-mounted ladder storage device. FIG. 6 is an operation explanatory diagram of the conventional vehicle-mounted ladder storage device. Explanation] 11 ... vehicle floor, 20 ... folding ladder, 21 ... prop, 22 ...
Step: 23 ladder, 24: pin, 30: on-board ladder storage device, 32: rail, 33L, 33R: side guide, 34: centering guide.

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-9-315230 (JP, A) JP-A-9-277877 (JP, A) JP-A 6-23830 (JP, U) JP-A 5-23830 5589 (JP, U) Japanese Utility Model 4-52945 (JP, U) Japanese Utility Model 2-8653 (JP, U) Japanese Utility Model 63-67358 (JP, U) Japanese Utility Model 57-204242 (JP, U) (58) Field surveyed (Int. Cl. ⁷ , DB name) B60R 5/04 B60R 3/00

Claims (1)

(57) [Claims 1] A folding ladder prepared by preparing two ladders extending over a plurality of steps on left and right columns and fixing one end of each of the ladders with a pin. In the vehicle-mounted ladder storage device that stores the ladder in the vehicle, two rails laid on the vehicle floor to slide the left and right supports of the folding ladder when placed flat, and a rail so that the folding ladder does not swing left and right And a centering guide for centering the folding ladder by pushing the inner surfaces of the left and right supports outward in the width direction of the folding ladder.