JPH10329608A - Step for vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To mount a step lower cover on a step cover without boning a lower cover mounting hole in the step cover or performing a special positioning work. SOLUTION: A step body 18 is mounted horizontally on a body, and a step cover 19 having a shelf part 19d for covering the lower surface periphery of the step body is mounted on the body. An opening part 19e is formed in the center of the shelf part 19d. A step lower cover 21 is mounted on the step cover 19 so as to cover the surface of the skirt part 19g of the outer edge 19f of the shelf part 19d and extend down from the skirt part 19g. A boss 19h is bored inward in the outer edge inner surface of the shelf part 19d, and a stay 21d is bored in the upper edge of the step lower cover 21 so as to be opposed to the end surface of the boss through the opening from the outer edge upper surface of the shelf part 19d. A through-hole 21e and a prepared hole 19i are formed on the stay 21d and the boss, respectively, and a screw 24 is screwed to the prepared hole 19i through the through-hole 21e, whereby the step lower cover 21 is mounted on the stop cover 19.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a step for an occupant to get on and off a driver's seat of a cab such as a vehicle, particularly a truck.

[0002]

2. Description of the Related Art Conventionally, as steps of this kind, as shown in FIGS. 4 and 5, a step body 2 mounted horizontally on a body of a cab, a step cover 3 mounted on a body of the cab, and a step. A device having a step lower cover 4 attached to the cover 3 is known.
In this step 1, the step cover 3 and the back wall 3a,
Front wall 3b, rear wall 3c, and these walls 3a, 3b, 3c
And a shelf 3d horizontally provided at the lower end of the step body 2 and located with a slight gap below the step main body 2. This shelf 3
By d, the peripheral edge of the lower surface of the step body 2 is covered with a slight gap (FIG. 4). A skirt 3e having a relatively low height is continuously provided on the outer edge of the shelf 3d (FIGS. 4 and 5).

The step lower cover 4 is provided on the skirt 3
e, the lower end thereof extends below the skirt 3e, and the upper end thereof is provided so as to substantially coincide with the upper surface of the outer edge of the shelf 3d. Although not shown, a front bumper is provided at a lower portion of the front surface of the cab, and an air spoiler is provided integrally with the bumper at a lower edge of the front bumper. The height of the front bumper integrated with the air spoiler is relatively large, and its lower end is located below the lower end of the skirt portion 3e of the step cover 3. That is, the step lower cover 4 is provided when the air spoiler-integrated front bumper is mounted on a chassis frame (not shown).
And the lower end of the step cover 3 is configured to coincide with the lower end of the air spoiler. On the other hand, when a normal front bumper without an air spoiler is mounted on the chassis frame, the lower end of the normal front bumper matches the lower end of the skirt 3 e of the step cover 3.

[0004] Three lower cover mounting holes 3f are formed at predetermined intervals in the skirt portion 3e of the step cover 3 (Figs. 4 and 5), and the lower cover mounting hole 3f is formed on the back surface of the step lower cover 4. Are formed with three convex portions 4a which can be freely inserted (FIG. 4). A head housing 4b into which the head 5a of the square bolt 5 can be inserted from the lateral direction is formed on these projections 4a. A backing plate 6 having a substantially hat-shaped cross section is in contact with the back surface of the skirt portion 3e. The first backing plate 6 has three first bolts that can be loosely fitted to the male screw portions 5b of the square bolts 5 described above.
A hole 6a is formed (FIGS. 4 and 5). Symbol 3g in FIG.
Reference numeral 3h denotes an insertion hole formed near the lower end of the step cover 3 and into which the projection 2a of the step body 2 can be loosely inserted. Reference numeral 3h denotes a hole formed near the upper end of the step cover 3.
This is an attachment hole for attaching to the body. Reference numeral 4c
Is a hole formed near the lower end of the step lower cover 4 for fixing the lower portion of the step lower cover 4 to the body and the step main body 2 via the stay 7c. Further, a female screw 2b into which a bolt (not shown) for attaching the step main body 2 to the body is formed is formed on the projection 2a of the step main body 2 (FIG. 5).

When the step 1 constructed as described above is mounted on a cab having a front bumper integrated with an air spoiler, a lower cover mounting hole 3f is first made in the skirt 3e of the step cover 3 by post-processing. Next, the head 5a of the square bolt 5 is inserted into the head accommodating portion 4b of the step lower cover 4, and in this state, the convex portion 4a of the step lower cover 4 is loosely inserted into the lower cover mounting hole 3f.
The first hole 6a of the contact plate 6 and the washer 7a are loosely fitted into the male screw portion 5b of the square bolt 5, and the nut 7b is screwed. Thereby, the step lower cover 4 is attached to the step cover 3. Next, the projection 2a of the step body 2 is inserted into the insertion hole 3g of the step cover 3, and in this state, the step cover 3
After attaching to the body, the step body 2 is
To the body. At this time, the hole 7d of the stay 7 is loosely fitted to the bolt 7f. Further, the bolt 7g is inserted into the hole 7e of the stay 7 and the hole 4c of the step lower cover 4 and screwed into the nut 7h, whereby the mounting operation of Step 1 is completed.

[0006]

However, in the above-described conventional step, when the step lower cover is mounted on the step cover, it is necessary to make a hole for mounting the lower cover in the skirt portion of the step cover by post-processing, so that the number of processing steps increases. However, there are two types of step covers depending on the presence or absence of the lower cover mounting hole, and there is a problem that the number of parts increases and parts management becomes troublesome. In addition, there is a problem that a positioning operation is required for aligning the upper surface of the outer edge of the shelf with the upper edge of the step lower cover, and it takes a relatively long time to attach the step lower cover to the step cover.
In addition, since a contact plate and a washer are required in addition to the square bolts and nuts, the number of parts for attaching the step lower cover is relatively large and the weight thereof is relatively large, so that parts management becomes more troublesome and the manufacturing cost increases. There was also.

Further, in the above-mentioned conventional steps, a gap is formed between the outer edge of the shelf of the step cover and the upper edge of the step lower cover.
If the nut is tightened to attach the step lower cover to the step cover, the step lower cover will bend and the above gap will be further enlarged, or the portion of the surface of the step lower cover facing the convex portion will be further dented, and the appearance will be further impaired. There was a problem. Furthermore, if the step lower cover is accidentally kicked when the occupant gets on and off, there is a problem that the step lower cover is elastically deformed and the above-mentioned gap is opened or closed, further impairing the appearance. There was also a risk of damaging the step lower cover when putting on the feet.

In order to solve these problems, the steps shown in FIG. 6 and the steps shown in FIGS. 7 and 8 can be considered. In the step shown in FIG. 6, a plurality of lower cover mounting holes 3f are formed near the lower edge of the skirt portion 3e, and a plurality of convex portions 8a are formed on the back surface of the step lower cover 8 so as to face the lower cover mounting holes 3f. The protruding portions 8a are formed with pilot holes 8b. In the step configured as described above, the lower cover mounting hole 3f is formed in the skirt portion 3e by post-processing, and then the step lower cover 8 is formed.
The lower hole 8b of the convex portion 8a is opposed to the lower cover mounting hole 3f of the skirt portion 3e. In this state, the tapping screw 8c with the washer 8d is loosely inserted into the lower cover mounting hole 3f and screwed into the lower hole 8b. Thereby, the step lower cover 8 is attached to the step cover 3.

On the other hand, in the steps shown in FIGS.
A plurality of lower cover mounting holes 3f are formed near the lower edge of the skirt portion 3e, and a plurality of convex portions 9a are formed on the back surface of the step lower cover 9 so as to face the lower cover mounting holes 3f, respectively. A nut accommodating portion 9b is formed in the portion 9a, and an elastic holding piece 9d with a nut 9c is engaged with the locked portion 9e of the convex portion 9a so as to accommodate the nut 9c in the nut accommodating portion 9b. In the step configured as described above, the lower cover mounting hole 3f is formed in the skirt portion 3e by post-processing, and the elastic holding piece 9d with the nut 9c is locked to the locked portion 9e of the projection 9a. The convex portion 9a of the lower cover 9 is opposed to the lower cover mounting hole 3f of the skirt portion 3e, and the screw 9g with the washer 9f is screwed to the lower cover mounting hole 3f, the second hole 9h of the holding piece 9d, and the third of the locked portion 9e. The step lower cover 9 is attached to the step cover 3 by loosely inserting it into the hole 9i and screwing it into the nut 9c.

[0010] However, in the above two improved steps, since a backing plate and a washer are not required, the number of parts to be attached to the step lower cover and the weight thereof can be reduced. It has the same problem as the step before the improvement, except that the gap between the outer edge and the upper edge of the step lower cover is not increased and no dent is generated on the outer surface of the step lower cover.

SUMMARY OF THE INVENTION It is an object of the present invention to be able to attach a step lower cover to a step cover without drilling a hole for attaching the lower cover to the step cover, and to perform step cover without special positioning work when attaching the step lower cover. It is an object of the present invention to provide a vehicle step which can be securely mounted in a proper position of the vehicle. Another object of the present invention is to provide a step of a vehicle in which the number and weight of parts for attaching a step lower cover can be reduced because a contact plate or the like can be eliminated and only one type of step cover is required. Still another object of the present invention is that there is no gap between the outer edge of the step cover shelf and the upper edge of the step lower cover, and even if the screw is tightened to attach the step lower cover to the step cover, the step lower cover is dented. Therefore, the appearance of the vehicle can be improved, and the step of the vehicle in which the step lower cover is not damaged even if the foot is put on the upper edge of the step lower cover is provided.

[0012]

The invention according to claim 1 is
As shown in FIG. 1 to FIG.
6 has a step main body 18 horizontally mounted on the base 6 and a shelf 19d covering the lower peripheral edge of the step main body 18.
An opening 19e is formed in the center of
A step cover of a vehicle having a step cover 19 attached to the step covers 4 and 16 and a step lower cover 21 attached to the step cover 19 and covering the surface of the skirt 19g of the outer edge 19f of the shelf 19d and extending below the skirt 19g. It is an improvement. The characteristic configuration is the shelf 19d
A boss 19h protrudes inward from the inner surface of the outer edge 19f, and a stay 21d is provided on the upper edge of the step lower cover 21 so as to face the opening 19e from the upper surface of the outer edge 19f of the shelf 19d and face the end surface of the boss 19h. It is protruded and stays 21
A through hole 21e and a pilot hole 19i or a screw hole are formed in the d and the boss 19h.
The step lower cover 21 is screwed into the pilot hole 19i or the screw hole through the through hole 21e so that the step cover 2
2 where it is attached.

In the step of the vehicle described in the first aspect, the upper edge of the step lower cover 21 abuts on the upper surface of the outer edge 19f of the shelf 19d to position the step lower cover 21 in the vertical direction, and the stay 21d is mounted on the boss. The step lower cover 21 is positioned in the thickness direction by contacting the end face of the boss 19h.
The step lower cover 21 is positioned in the width direction by screwing into the prepared hole 19i or the screw hole. As a result, the screw 24 is passed through the hole 21e without performing any special positioning work of the step lower cover 21 and without making a hole for mounting the lower cover in the skirt portion 19g of the step cover 19.
The step lower cover 21 can be attached to the regular position of the step cover 19 simply by screwing the step lower cover 21 into the pilot hole 19i or the screw hole.

[0014]

Embodiments of the present invention will now be described with reference to the drawings. As shown in FIGS. 1 to 3, a floor side plate 13 connected to a side edge of a floor panel (not shown) is provided below the side door 12 on the passenger side of the cab 11 of the truck. A front bracket 14 and a rear bracket 16 are fixed to a lower portion of the plate 13 at predetermined intervals in the front and rear directions and extend downward, respectively (FIG. 2). One step 17 is attached to the floor side plate 13, the front bracket 14, and the rear bracket 16 (FIGS. 1 to 3). This step 1
Reference numeral 7 denotes a single step main body 18 horizontally mounted on the front bracket 14 and the rear bracket 16, a step cover 19 mounted on the floor side plate 13 and the front bracket 14, and a step lower cover 21 mounted on the step cover 19. And

The step main body 18 is formed of an aluminum alloy or the like, and has a square frame 18a and a bar 18b provided in a lattice shape inside the frame 18a. The step cover 19 is made of resin, and has an upper wall 19a having an upper part in contact with a lower part of the floor side plate 13, a front wall 19b in contact with the front bracket 14, a rear wall 19c in contact with the rear bracket 16, and a rear wall 19a. , Front wall 19b
And the step body 1 provided horizontally at the lower end of the rear wall 19c.
8 and a shelf 19d located with a small gap therebetween (FIGS. 1 and 2). The step cover 19 covers the lower outer surface of the floor side plate 13 and the opposing surfaces of the front bracket 14 and the rear bracket 16 (FIG. 2).
8 is covered with a slight gap (FIG. 1).
A square opening 19e is formed at the center of the shelf 19d, and a skirt 19g having a relatively low height is continuously provided at an outer edge 19f of the shelf 19d (FIGS. 1 and 2).

The step lower cover 21 is formed of a resin, covers a surface of the skirt portion 19g of the outer edge 19f of the shelf portion 19d and extends below the skirt portion 19g, and a shelf portion connected to the upper edge of the lower cover body 21a. An upper flange portion 21b that covers the upper surface of the outer edge 19f of the outer cover 19d, and a side flange portion 21c that is connected to one side edge of the lower cover body 21a (FIGS. 1 and 2). A front bumper 2 is provided at the lower front of the cab 11.
2, an air spoiler 23 is provided on the lower edge of the front bumper 22 integrally with the bumper 22 (FIG. 3). The height of the front bumper 22 integrated with the air spoiler 23 is relatively large, and the lower end thereof is located below the lower end of the skirt portion 19g of the step cover 19.
That is, the step lower cover 21 is attached to the step cover 19 when the front bumper 22 integrated with the air spoiler 23 is attached to a chassis frame (not shown) so that the lower end of the step cover 19 coincides with the lower end of the air spoiler 23. Be composed. On the other hand, air spoiler 2
When a normal front bumper (not shown) without 3 is attached to the chassis frame, the lower end of the normal front bumper matches the lower end of the skirt portion 19g of the step cover 19.

The feature of this embodiment is that the shelf 19
A boss 19h is directed inward and slightly downward on the inner surface of the outer edge 19f of d. The upper edge of the step lower cover 21 faces the opening 19e from the upper surface of the outer edge 19f of the shelf 19d and faces the end surface of the boss 19h. As shown in FIG.
2 and FIG. 2) are protruded, and a through hole 21e and a pilot hole 19i are formed at the stay 21d and the boss 19h, respectively, so that the hole centers thereof coincide with each other.
The step lower cover 21 is attached to the step cover 19 by screwing it into the i (FIG. 1).
Four bosses 19h are provided on the inner surface of the outer edge 19f of the shelf 19d at predetermined intervals, and four stays 21d are provided at an edge of the upper flange portion 21b of the step lower cover 21 at predetermined intervals. . Screw 24 is washer 2
It is a tapping screw with 4a.

Two projections 18c are projected from the front and rear surfaces of the step body 18, respectively, and female threads 18d into which the first bolt 31 can be screwed are formed on these projections 18c, respectively (FIG. 2). At the front wall 19b and the rear wall 19c of the step cover 19, two insertion holes 19j into which the projections 18c can be loosely inserted are formed slightly above the shelf 19d. Front bracket 14 and rear bracket 1
In the vicinity of the lower end of the projection 6, the first projection 18c is opposed to the projection 18c.
Two insertion holes 14a, 16a into which the bolts 31 can be loosely inserted are formed. In the vicinity of the upper end of the step cover 19, a second
Three mounting holes 19k into which the bolts 32 can be loosely inserted are respectively formed, and the floor side plate 13 and the front bracket 14 are opposed to the mounting holes 19k and the second mounting holes 19k.
Through holes 13a into which the bolts 32 can be loosely inserted are formed. The nuts 26 to which the second bolts 32 can be screwed are fixed to the back surfaces of the through holes 13a, respectively. 2 is a side flange portion 2 of the step lower cover 21.
1c at the lower part of the front bracket 14 via the stay 25
And a third bolt 33 for fixing to the step body 18
Is a hole through which is inserted. Holes 25a and 25b are formed at the upper and lower ends of the stay 25, respectively, and a nut is fixed to the lower end of the stay 25 so that the center of the female screw matches the center of the hole 25b.

When the step 17 constructed as described above is mounted on the cab 11 having the front bumper 22 integrated with the air spoiler 23, first, the step lower cover 2
The first stay 21d faces the opening 19e from the upper surface of the outer edge 19f of the shelf 19d of the step cover 19 and faces the boss 19h. At this time, the upper flange portion 21b is
By contacting the upper surface of the outer edge 19f of the 9d, the step lower cover 21 is positioned in the vertical direction.
1d abuts on the end face of the boss 19h, thereby positioning the step lower cover 21 in the thickness direction. Further, the screw 24 is inserted into the through hole 21e of the stay 21d and screwed into the pilot hole 19i of the boss 19h to thereby lower the step lower cover 21. Is positioned in the width direction. As a result, the step lower cover 2 can be formed without performing any special positioning operation and without opening a lower cover mounting hole (not shown) in the skirt portion 19g of the step cover 19.
1 can be attached to the regular position of the step cover 19.

Next, the projections 18c of the step main body 18 are inserted into the insertion holes 19j of the step cover 19, and in this state, the mounting holes 19k of the step cover 19 are inserted into the through holes 1 of the floor side plate 13 and the front bracket 14.
3a, and the second bolt 32 is inserted into the mounting hole 19k and the through hole 13a and screwed into the nut 26. Thus, the step cover 19 is attached to the floor side plate 13 and the front bracket 14. Next, the insertion holes 14a of the front bracket 14 and the rear bracket 16 are provided.
The step main body 18 is attached to the front bracket 14 and the rear bracket 16 by inserting the first bolt 31 into the 16 a and screwing it into the female screw 18 d of the projection 18 c of the step main body 18. At this time, the front bracket 14
Two first holes inserted through the two insertion holes 14a, 14a
The hole 25 a of the stay 25 is loosely fitted to one of the bolts 31. Further, after the third bolt 33 is inserted into the hole 21f of the side flange portion 21c of the step lower cover 21 and the hole 25b of the stay 25, it is screwed into a nut 25c fixed to the stay 25 to fix the lower portion of the step lower cover 21. .

Step 1 is performed by such a relatively simple operation.
7 can be attached to the floor side plate 13 and the like, and the lower end of the step lower cover 21 matches the lower end of the front bumper 22 integrated with the air spoiler 23, so that the appearance of the cab 11 is not spoiled. Further, when the front bumper 22 integrated with the air spoiler 23 is replaced due to damage or the like, even if a normal front bumper (not shown) without the air spoiler 23, that is, a front bumper having a relatively small height is attached to the cab 11, If the step lower cover 21 is removed, the lower end of the front bumper and the lower end of the skirt portion 19g of the step cover 19 coincide with each other, and the lower cover mounting hole is not formed in the skirt portion 19g. Absent.

In the above embodiment, one step is described. However, the present invention is not limited to this, and two or three or more steps may be used. Further, in the above embodiment, the case where the step is mounted on the body below the side door on the driver's seat side of the cab has been described. Is preferred. Further, in the above embodiment, the front bracket and the rear bracket are fixed to the floor side plate, but the front bracket and the rear bracket may be formed integrally with the floor side plate by press working. Furthermore, in the above embodiment, the pilot hole is formed in the boss, but a screw hole may be formed in the boss. This screw hole is formed by embedding a nut in a boss or cutting a female screw with a tap.

[0023]

As described above, according to the present invention, the boss protrudes inward from the inner surface of the outer edge of the shelf of the step cover, and the upper edge of the step lower cover is opened from the upper surface of the outer edge of the shelf. Since the stay was protruded so as to face the end face of the boss facing the part and the through hole and pilot hole or screw hole were formed in the stay and the boss, respectively, so that the step lower cover could be specially positioned. The step lower cover can be mounted at the correct position of the step cover by simply screwing the screw through the through hole into the pilot hole or screw hole without making a hole for mounting the step lower cover on the skirt portion of the step cover. . Also, in comparison with the conventional step before the improvement requiring the backing plate or the conventional step requiring two types of step covers, in the present invention, the backing plate or the like can be eliminated and the step cover can be provided in one step. Since only one type is required, the number and weight of parts for attaching the step lower cover can be reduced. As a result, manufacturing costs can be reduced. In addition, in the present invention, since the above gap is not generated, the appearance can be improved as compared with a conventional step in which a gap is formed between the outer edge of the shelf portion of the step cover and the upper edge of the step lower cover and the appearance is impaired.

Further, when the nut is tightened to attach the step lower cover to the step cover, the surface of the step lower cover is dented.
In the present invention, even if the screw is tightened to attach the step lower cover to the step cover, no dent is generated in the step lower cover, so that the appearance can be further improved. Furthermore, in comparison with the conventional step, which may damage the step lower cover when the occupant accidentally puts his foot on the upper edge of the step lower cover, in the present invention, the stay of the step lower cover extends from the upper surface of the outer edge of the shelf to the opening. Since it is fixed to the boss on the inner surface of the outer edge of the shelf, the step lower cover will not be damaged even if the foot is put on the upper edge of the step lower cover.

[Brief description of the drawings]

FIG. 1 is a sectional view taken along line AA of FIG. 3, showing steps of a vehicle according to an embodiment of the present invention.

FIG. 2 is an exploded perspective view of a step including a floor side plate of the vehicle.

FIG. 3 is a perspective view of a cab to which the steps are attached.

FIG. 4 is a sectional view showing a first conventional example and corresponding to FIG. 1;

FIG. 5 is an exploded perspective view of the step.

FIG. 6 is a sectional view corresponding to FIG. 1 showing a second conventional example.

FIG. 7 is a sectional view corresponding to FIG. 1, showing a third conventional example.

FIG. 8 is a sectional view taken along line BB of FIG. 7;

[Description of Signs] 13 Floor side plate (body) 14 Front bracket (body) 16 Rear bracket (body) 17 Step 18 Step body 19 Step cover 19d Shelf 19e Opening 19f Outer edge of shelf 19g Skirt 19h Boss 19i Lower Hole 21 Step lower cover 21d Stay 21e Through hole 24 Screw

Claims (1)

[Claims] 1. A step body (18) horizontally mounted on a body (13, 14, 16) of a vehicle, and a shelf (19d) covering a lower peripheral edge of the step body (18). An opening (19e) is formed in the center of (19d) and a step cover (19) attached to the body (13, 14, 16); and the step cover (1
9) attached to the skirt of the outer edge (19f) of the shelf (19d)
(19g) In a step of a vehicle provided with a step lower cover (21) covering the surface and extending below the skirt portion (19g), a boss (19h) is provided inside the outer edge (19f) of the shelf (19d). And the boss (1) facing the opening (19e) from the upper surface of the outer edge (19f) of the shelf (19d) on the upper edge of the step lower cover (21).
A stay (21d) is protruded so as to face the end face of 9h), and a through hole (21e) and a pilot hole (19i) or a screw hole having a hole center coincident with the stay (21d) and the boss (19h) are provided. Screw (24) is formed through the through hole (21e) and the pilot hole (19i) is formed.
Alternatively, the step of the vehicle, wherein the step lower cover (21) is attached to the step cover (19) by screwing into the screw hole.