JP4878301B2 - Aori hanging bracket - Google Patents

Description

  The present invention relates to a tilt bracket attached to a loading platform of a vehicle.

  As shown in FIG. 5, as a hanging bracket for holding a tilting bracket attached to a column of a loading platform in a state where the tilting attached to the loading platform of a cargo vehicle such as a truck is tilted up, as shown in FIG. The fixed part 141 fixed to the outer side of the tilt A, the rising part 143 raised vertically from the tip of the fixed part 141 toward the inner side, and the side of the tilt A from the rising part 143 There is a hanging bracket 140 that protrudes toward the direction and is formed with a holding portion 144 that is held by the tilt stopper 30. In this conventional hanging metal fitting 140, two bent portions are formed between the fixing portion 141 and the holding portion 144 (see, for example, Patent Document 1).

Japanese Utility Model Publication No. 47-13815 (2nd page, 11th to 13th lines, FIG. 5)

  Here, the tilt bracket 140 of the tilt A shown in FIG. 5 is stored in a state where the tilt bracket 30 is locked in a state where it is sandwiched between the support column T2 of the loading platform and the pressing portion 34 of the tilt bracket 30. It is configured to support the tilt A that tends to tilt outward. Therefore, a load resulting from the weight of the tilt A acts on the fixing portion 141 of the hanging metal from the tilt A toward the outside of the warehouse.

  As a result of analyzing the stress distribution when a load is applied to the fixing portion 141 in the conventional hanging metal fitting 140 described above, the stress is concentrated in a narrow range near the boundary between the fixing portion 141 and the rising portion 143. Thus, when the stress is concentrated in a narrow range, cracks and deformation are likely to occur in the range, and there is a problem that the strength of the hanging metal fitting 140 is lowered.

  Therefore, an object of the present invention is to solve the above-described problems and to provide a tilt hook that can increase the strength with a simple configuration.

In order to solve the above-mentioned problems, the present invention is a tilt hook that is held by a tilt stopper provided on a load carrier in a state where the tilt attached to the load carrier of the vehicle is tilted up. Te, the side edge portion of the tilt, receiving portion that is offset in the refrigerator inside than the outer plate is formed to constitute the outer skin of the tilt, in a state in which launched the tilt, the gasket held in the carrier receives part It is configured to be pressed , and is fixed to the outer side of the outer plate of the outer plate, and protrudes from the fixed portion toward the side of the tilt, and is inclined toward the inner side of the outer side of the stepped portion. From the leading edge of the slanted part, the rising part raised to the inside of the storage along the side edge of the tilt, and protruding from the rising part to the side of the tilt, A holding portion which is lifting, is formed, is characterized in that the bent portions of the three places between the holding portion from the fixation portion.

In this configuration, between the fixing part and the holding part of the hanging bracket, an inclined part that is inclined toward the inside of the warehouse, and a rising part that is raised from the tip of the inclined part toward the inside of the warehouse The three bent portions are formed between the fixing portion and the holding portion.
As a result of analyzing the stress distribution when a load is applied from the tilt toward the outer side of the fixed portion of the hanging metal fitting of the present invention, the stress is dispersed in a wide range near the boundary between the fixed portion and the inclined portion.

  In addition, as a result of measuring the maximum stress when a load is applied from the tilt toward the outside of the warehouse, the bent portion of the present invention has two bent portions between the fixed portion and the holding portion. The maximum stress was reduced as compared with the conventional hanging bracket.

  Therefore, in the hanging metal fitting of the present invention, the stress is dispersed and the maximum stress is reduced, and it is difficult for cracks and deformation to occur. Therefore, the strength of the hanging metal fitting can be increased with a simple configuration.

Further, by forming the inclined portion and the rising portion in correspondence with the shape of the side end portion of the tilt, the appearance when the hanging bracket is attached to the tilt can be improved.

  In the tilt bracket of the present invention, three bent portions are formed between the fixing portion and the holding portion of the latch. As a result of analyzing the stress distribution when a load is applied from the tilt toward the outside of the cabinet on the fixing portion of the hanging metal fitting, the stress is dispersed in a wide range near the boundary between the fixing portion and the rising portion. Moreover, as a result of measuring the maximum stress when a load was applied to the fixed portion of the hanging metal fitting of the present invention from the tilt toward the outside of the warehouse, the maximum stress was reduced as compared with the conventional hanging metal fitting. Therefore, in the present invention, the stress generated in the hanging metal is dispersed and the maximum stress is reduced, and cracks and deformation are less likely to occur. Therefore, the strength of the hanging metal can be increased with a simple configuration.

Next, embodiments of the present invention will be described in detail with reference to the drawings as appropriate.
FIGS. 1A and 1B are views showing a usage state of a hanging metal fitting according to the present embodiment, in which FIG. 1A is a side view of a rear part of a truck bed, and FIG. FIG. 2 is a side view showing a state in which the hanging bracket of the present embodiment is held by the tilt stopper. 3 is a cross-sectional view taken along the line XX of FIG. 4A and 4B are diagrams illustrating the hanging metal fitting of the present embodiment, in which FIG. 4A is a perspective view and FIG. 4B is a YY cross-sectional view of FIG.
In the present embodiment, a description will be given by taking, as an example, a tilt hook provided on a wing type truck (freight vehicle) in which left and right wings constituting a side wall and a roof of a cargo bed are opened and closed vertically. In the following description, after describing the overall structure of the tilt and the loading platform, the hanging metal fitting will be described in detail.

[Composition of Aori]
As shown in FIG. 1 (a), Aori A is a plate-like member that is raised at the side edge of the loading platform T1 of the truck T, and is tiltable toward the outside of the warehouse (FIG. 1 (b). )reference).
This tilt A is composed of a rectangular tilt component 10 which is wide in the vehicle front-rear direction, and two end posts 20, 20 which are respectively joined to both end portions of the tilt component 10.

(Structure of tilting material)
The tilting component 10 is constituted by a plurality of extruded shapes made of an aluminum alloy. As shown in FIG. 3, an outer plate 11 constituting an outer skin and an inner plate 12 constituting an inner skin are arranged in the vehicle width direction. Are arranged at predetermined intervals.

As shown in FIG. 1 (b), the upper part of the tilting component 10 is offset to the inner side by the thickness of the wing W (see FIG. 1 (a)) from the reference outer surface 11a of the outer plate 11, When the lower end of the wing W that opens and closes overlaps from the outside of the warehouse, the reference outer surface 11a of the outer plate 11 and the outer surface of the wing W outside the warehouse are flush with each other.
In this configuration, the Aori A can be extended to the outside of the warehouse until the reference outer surface 11a of the outer plate 11 reaches the specified vehicle width of the loading platform T1 (see FIG. 1A). Can be increased.

(End post configuration)
As shown in FIG. 3, the end post 20 is an extruded shape member made of aluminum alloy that extends in the vertical direction along the side end portion of the tilting component 10, and is fitted into the side end portion of the tilting component 10. An insertion portion 21 having a groove shape in cross section is formed over the entire length in the vertical direction.
On the side end face 22 (the left side face in FIG. 3) of the insertion part 21, a plate-like receiving part 23 is vertically raised.

The receiving portion 23 extends in the vertical direction along the side end face 22 of the insertion portion 21. The outer surface 23a on the outer side of the receiving portion 23 is offset to the inner side of the reference outer surface 11a of the outer plate 11 of the tilting component 10 and is flush with the upper part of the tilting component 10 (FIG. 1). (See (b)).
Therefore, in the end post 20 that is the side end portion of the tilt A, a step portion 24 that is bent at a right angle is formed by the side end surface 22 of the insertion portion 21 and the outer surface 23a of the outer side of the receiving portion 23.

Moreover, the front-end | tip part (left edge part of FIG. 3) of the receiving part 23 is bend | folded perpendicular | vertical toward the inner side of a warehouse, and the gasket G which is a cylindrical rubber material is carried in the inner side of the receiving part 23. The groove 25 to be fitted is formed over the entire length in the vertical direction.
On both side surfaces (left and right side surfaces in FIG. 3) in the groove portion 25, protrusions extend in the vertical direction. By fitting the base end portion of the gasket G between the protrusion portions, the gasket G has the groove portions 25. Is held in.

[Composition of props]
As shown to Fig.1 (a), support | pillar T2, T2 is standingly arranged in the side edge part of the loading platform T1 at predetermined intervals in the vehicle front-back direction.
As shown in FIG. 3, this support column T2 is a hollow steel material having a square cross section. From both side edges of the outer surface T2a on the outer side, the plate-like door stops T2b and T2b stand vertically toward the outer side. Has been raised.
In the state in which the tilt A is raised, the tip of the door contact portion T2b of the support T2 is pressed against the gasket G held by the receiving portion 23 of the end post 20, so that the position between the tilt A and the support T2 is increased. It is configured to ensure water tightness.

[Configuration of tilt stopper]
As shown in FIG. 2, the tilt stopper 30 is a bracket for holding the tilt A in a raised state by holding a hanging bracket 40 described later. Since the tilt stopper 30 uses a known configuration, a detailed description thereof is omitted.

  The tilt stopper 30 is attached to a plate-like base member 31 attached to the outer surface T2a on the outside of the column T2, a hook 32 attached to the upper portion of the base member 31, and a lower portion of the base member 31. A lock lever 33 and a pressing portion 34 attached to the lock lever 33 are provided.

The hook 32 is a rod-like member that protrudes from the upper outer surface of the base member 31 on the outer side, and has a distal end bent upward.
The lock lever 33 is a bar-like member extending in the vertical direction, and its upper end is attached to the lower part of the outer surface of the base member 31 on the outer side of the base member 31 so as to be rotatable in the vertical direction.
The pressing portion 34 is a quadrangular member in a side view, and a base end portion thereof is attached to an upper portion of the lock lever 33 so as to be rotatable in the vertical direction. A hook hole 34 a passes through the tip of the pressing portion 34.

Then, the tip of the hook 32 can be inserted into the hooking hole 34 a of the pressing portion 34 by rotating the lock lever 33 upward and bringing the pressing portion 34 close to the hook 32.
In this state, when the lock lever 33 is rotated downward, the pressing portion 34 is rotated toward the inner side with the contact portion with the hook 32 as a rotation center, and the pressing portion 34 is supported by the column T2. The tilt stopper 30 is locked in a state of being pressed against the outer surface T2a outside the storage (see FIG. 1).

[Configuration of hanging bracket]
As shown in FIG. 2, the hanging bracket 40 is a bracket for holding the tilting A in a state where the tilting A is raised, and is a plate-like member that is wide in the lateral direction.
In the hanging metal fitting 40, as shown in FIG. 3, the fixing portion 41 fixed to the outside of the tilter A, and protrudes from the fixing portion 41 toward the side of the tilter A, and is inclined toward the inner side of the hook. An inclined portion 42, a rising portion 43 raised from the tip end portion of the inclined portion 42 toward the inside of the cabinet, and projecting from the rising portion 43 toward the side of the tilt A. A holding portion 44 held by the metal fitting 30 is formed.

(Structure of fixing part)
As shown in FIG. 3, the fixing portion 41 is a portion that is fixed to the outer surface 21 a on the outer side of the insertion portion 21 in the end post 20 of the tilt A, and the tip portion (the left end portion in FIG. 3) is Further, it protrudes to the side of the tilt A from the insertion portion 21 (left side in FIG. 3), and is disposed outside the stepped portion 24 formed on the end post 20.
Further, as shown in FIG. 4A, the fixing portion 41 has four mounting holes 41a penetrating at equal intervals in two rows.

Here, on the outer side of the insertion portion 21 of the end post 20 shown in FIG. 2, it is disposed at the same height as the hook 32 of the tilt stopper 30 at the same intervals as the mounting holes 41 a of the fixing portion 41. Four mounting holes (not shown) pass through (see FIG. 3).
Further, four mounting holes (not shown) communicating with the respective mounting holes of the end post 20 pass through the outer plate 11 of the tilt component 10 (see FIG. 3).

As shown in FIG. 3, the fixing portion 41 is overlapped with the outer surface 21 a on the outer side of the insertion portion 21 of the end post 20, and each mounting hole 41 a of the fixing portion 41 is provided for each of the end post 20 and the outer plate 11. It communicates with the mounting hole.
Bolts B are inserted into the mounting holes of the fixing portion 41, the end post 20 and the outer plate 11 from the outside of the warehouse, and a nut N is provided at the tip of each bolt B on the inner surface side of the outer plate 11. It is screwed.
In this way, the fixing portion 41 is fixed to the outer side of the tilt A using the four bolts B.
In addition, in each attachment hole 41a of the fixing | fixed part 41, since the outside diameter is expanded (refer FIG.4 (b)), since the head of the volt | bolt B fits in this enlarged diameter part, the volt | bolt B is from the fixing | fixed part 41. It does not protrude outside the warehouse.

(Configuration of inclined part)
As shown in FIG. 3, the inclined portion 42 protrudes from the fixing portion 41 toward the side of the tilt A (left side in FIG. 3), and on the outer side of the step portion 24 formed on the end post 20. It is the part which inclines toward. That is, the inclined portion 42 faces the outer surface 23a on the outer side of the receiving portion 23 of the end post 20 and approaches the outer surface 23a on the outer side of the receiving portion 23 toward the side of the tilt A. Yes.
The inclined portion 42 of the present embodiment is inclined at an angle of 13 degrees with respect to the distal end portion of the fixing portion 41, but the inclination angle is not limited, and the strength of the hanging bracket 40 and the strength of the receiving portion 23 are not limited. It is set in consideration of the shape.
Further, the tip end portion (left end portion in FIG. 3) of the inclined portion 42 protrudes to the side of the tilt A (left side in FIG. 3) from the side end face 23 b of the receiving portion 23.

(Composition of start-up part)
As shown in FIG. 3, the rising portion 43 is a portion raised from the tip end portion (left end portion in FIG. 3) of the inclined portion 42 toward the inside of the warehouse.
The rising portion 43 is closer to the side of the tilt A than the side end surface 23b of the receiving portion 23 (on the left side in FIG. 3) and along the side end surface 23b of the receiving portion 23, in the vicinity of the outer surface T2a on the outer side of the column T2. And is disposed perpendicular to the outer surface T2a on the outer side of the column T2.

(Configuration of holding part)
As shown in FIG. 3, the holding portion 44 is a portion that protrudes vertically from the tip end portion (upper end portion in FIG. 3) of the rising portion 43 toward the side of the tilt A (left side in FIG. 3). is there.
As shown in FIG. 2, the holding portion 44 is configured to come into contact with the base member 31 around the hook 32 of the tilt stopper 30 when the tilt A is raised, and the hook 32 is inserted therethrough. For this purpose, a U-shaped cutout groove 44a is formed (see FIG. 4A).

In order to hold the holding portion 44 on the tilt stopper 30, first, the tilt A is raised, the holding portion 44 is brought into contact with the base member 31 of the tilt stopper 30, and the notch 44 a of the holding portion 44 is passed through. The hooking hole 34a of the pressing portion 34 is hooked on the hook 32 protruding to the outside of the warehouse. Further, by rotating the lock lever 33 downward and pressing the pressing portion 34 toward the support column T2, the holding portion 44 is sandwiched between the base member 31 and the pressing portion 34, and the holding portion 44 44 is held by the tilt stopper 30.
In this manner, the hook 40 is held by the tilt stopper 30 so that the tilt A can be kept up.

[Effect of hanging bracket]
As shown in FIG. 3, the hanging bracket 40 of the present embodiment is inclined toward the inner side between the fixing portion 41 fixed to the tilting A and the holding portion 44 held by the tilting stopper 30. Three bent portions between the fixing portion 41 and the holding portion 44 by forming the inclined portion 42 and the rising portion 43 raised from the tip end portion of the inclined portion 42 toward the inside of the storage. Is formed.
And in the hanging metal fitting 40 of this embodiment, as a result of analyzing the stress distribution when a load is applied to the fixing portion 41 from the inner side to the outer side, the stress is wide near the boundary between the fixing portion 41 and the inclined portion 42. Was distributed over the range.

Moreover, in the hanging metal fitting 40 of the present embodiment, when a load of 1000 N is applied to the fixing portion 41 from the inside of the storage toward the outside of the storage, the maximum stress generated in the hanging fitting 40 is 128.3 N / mm ^2. It became. On the other hand, in the configuration in which two bent portions are formed between the fixing portion 141 and the holding portion 144 as in the conventional hanging metal fitting 140 shown in FIG. When a load of 1000 N was applied toward the surface, the maximum stress generated in the hanging bracket 40 was 145.5 N / mm ² . Thus, in the hanging bracket 40 of the present embodiment, the maximum stress is reduced by about 11.8% compared to the conventional hanging bracket 140 (see FIG. 8).

  Therefore, in the hanging metal fitting 40 of the present embodiment, the stress is dispersed and the maximum stress is reduced, and cracks and deformation are less likely to occur. Therefore, the strength of the hanging metal fitting 40 can be increased with a simple configuration.

Furthermore, in the hanging bracket 40 of the present embodiment, the inclined portion 42 and the rising portion 43 are formed so as to correspond to the shape of the step portion 24 formed on the end post 20 which is the side end portion of the tilt A. The appearance when the hanging bracket 40 is attached to the tilt A can be improved.
That is, if the fixing portion 141 and the rising portion 143 are made continuous as in the conventional hanging metal fitting 140 (see FIG. 5), the shape from the fixing portion 41 to the rising portion 43 becomes angular, so that a rugged impression is obtained. Although it becomes an appearance, when the inclined portion 42 is interposed between the fixing portion 41 and the rising portion 143 as in the hanging bracket 40 of the present embodiment, the shape from the fixing portion 41 to the rising portion 43 is rounded. It will have a sophisticated appearance.

[Other Embodiments]
The embodiments of the present invention have been described above. However, the present invention is not limited to the above-described embodiments, and various design changes can be made without departing from the spirit of the present invention.
For example, in the hanging bracket 40 of the present embodiment, as shown in FIG. 3, the inclined portion 42 is inclined at an angle of 13 degrees with respect to the distal end portion of the fixing portion 41, and the rising portion 43 is the outer surface T2a of the column T2. However, the shape of the inclined portion 42 and the rising portion 43 is not limited, and corresponds to the strength of the hanging bracket 40 and the shape of the side end of the tilt A. It is set appropriately.

  Further, in this embodiment, as shown in FIG. 2, the fixing portion 41 is fixed to the tilt A with four bolts B, but the fixing portion 41 can be securely fixed to the tilt A. If so, the number and arrangement of the fixing points are not limited.

It is the figure which showed the use condition of the hanging metal fitting of this embodiment, (a) is a side view of the loading platform rear part of a truck, (b) is a perspective view when raising a tilt. It is the side view which showed the state by which the hanging metal fitting of this embodiment was hold | maintained at the tilting metal fitting. It is the figure which showed the state by which the hanging metal fitting of this embodiment was hold | maintained at the inclination stopper metal fitting, and is XX sectional drawing of FIG. It is the figure which showed the hanging metal fitting of this embodiment, (a) is a perspective view, (b) is YY sectional drawing of (a). It is the cross-sectional view which showed the state by which the conventional hanging metal fitting was hold | maintained at the inclination stopper metal fitting.

Explanation of symbols

10 tilting component 11 outer plate 12 inner plate 20 end post 21 insertion part 23 receiving part 24 step part 30 tilting bracket 32 hook 33 lock lever 34 pressing part 40 hanging bracket 41 fixing part 42 inclined part 43 rising part 44 holding part A Aori T truck T1 loading platform T2 prop

Claims (1)

A tilting bracket for holding the tilting bracket provided on the loading platform in a state where the tilting attached to the loading platform of the vehicle is tilted up,
The side end portion of the tilt, the receiving portion is offset in the refrigerator inside than the outer plate constituting the outer skin of the tilt is formed, in the state in which launched the tilt, the loading platform is held in the receiving portion It is configured to be pressed against the gasket ,
A fixing part fixed to the outside of the outer plate;
An inclining portion that protrudes toward the side of the tilt from the fixing portion, and that inclines toward the inner side on the outer side of the receiving portion , and
From the tip part of the inclined part, a rising part raised to the inner side along the side end surface of the tilt,
Projecting toward the side of the tilt from the rising portion, and a holding portion held by the tilt stopper is formed ,
A tilt bracket having three bent portions formed between the fixing portion and the holding portion .

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