JPH0728195U - Folding structure of outrigger for forklift - Google Patents

Abstract

(57) [Summary] [Object] To provide a folding structure of an outrigger for a forklift truck, which facilitates folding and unfolding of the outrigger and ensures sufficient rigidity without a gap that causes play. [Structure] An outrigger 3 is rotatably provided with respect to a main body portion 2 of a forklift, and in order to fix the outrigger 3 at both a deployed position and a folded position, a set member 7 and a set member 7 which are fixed sides are provided. A forklift outrigger folding structure including a lock member 8 that can be engaged with the positioning member 7a, 7b is provided on the setting member 7.
And the lock member 8 has a screw member 10 for advancing and retracting.
And an engaging portion 9 having a U-shaped cross section capable of catching the setting member 7 together with the outrigger 3 and having rigidity sufficient to support the action load of the outrigger.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a folding structure of an outrigger for a forklift, and more particularly, to a folding structure of an outrigger for an outrigger that is easy to fold and unfold, and has sufficient rigidity without a gap that causes rattling. Regarding folding structure.

[0002]

[Prior art]

 The lightweight forklift truck with the support wheels 52 protruding to the front side through the outriggers 51 can be carried by loading the forklift truck itself on a truck bed or the like, and at that time, the outriggers 51 can be folded with respect to the main body of the forklift truck. Equipped with a foldable outrigger structure.

As shown in FIG. 8A, the folding structure of the outrigger has insertion holes 54, 54 formed in the main body 53 on the fixed side and the outrigger 51 on the movable side, and the insertion hole 54. , 54, and a fixing pin 55 that can be inserted and removed. This folding structure allows the outriggers to be fixed in the horizontal and vertical positions corresponding to the unfolding and folding. Further, an auxiliary wheel 56 is provided on the base end side of the outrigger so that the forklift can move when folded. Reference numerals 51a, 55a, and 56a show the respective folded states of the outrigger 51, the fixing pin 55, and the auxiliary wheel 56.

The folding procedure of the outrigger 51 is carried out by supporting the weight of the main body 53 by the lowered fork, removing the load of the outrigger 51, and then inserting / removing the fixing pin 55 and rotating the folding of the outrigger. Do it manually.

[0005]

[Problems to be solved by the device]

 However, since the outrigger and its folding structure receive a large load during loading and unloading, sufficient rigidity in the folding direction and the twisting direction is required. It requires highly precise mating and a sufficient length dimension, and when the outrigger is folded, the weight of the outrigger acts on the folded structure, so delicate alignment and large force are required by adjusting the angle of the heavy outrigger. This requires the work of pulling out and inserting the fixing pin, which becomes a neck in the work and creates a gap in the engaging and fixing part, which causes play and it is difficult to secure sufficient rigidity.

An object of the present invention is to obtain an outrigger folding structure in which the outriggers can be folded and unfolded by a light work, and at the same time, a sufficient rigidity is ensured by eliminating a gap that causes play.

[0007]

[Means for Solving the Problems]

 In order to solve the above problems, an outrigger is provided rotatably with respect to the main body of a forklift, and in order to fix this outrigger at each position when unfolding and folding, a set member that constitutes a fixed side and this set In a folding structure of a forklift outrigger including a lock member that can be engaged with a member, a positioning portion corresponding to both the unfolded position and the folded position of the outrigger is formed in the set member, and the positioning portion is engaged with the positioning portion. The mating lock member has a screw member for advancing and retracting the lock member, and an engaging portion having a U-shaped cross section capable of catching both the outrigger and the set member and having rigidity sufficient to support the action load of the outrigger. Equipped with.

[0008]

[Action]

 The engagement part of the lock member captures both the outrigger and the setting member, and the rigidity of the engagement part supports the applied load in the extended position of the outrigger, and the locking member becomes the setting member by the rotation of the screw member. It is reciprocally engaged and disengaged.

[0009]

【Example】

 Embodiments of the present invention will be described below with reference to the accompanying drawings.

FIG. 1 is a side view of a forklift having an outrigger folding structure according to the present invention, FIG. 2 is a perspective view showing an embodiment of the present invention, FIG. 3 is an exploded perspective view of FIG. 2, and FIG. 5 is a side view of the embodiment of FIG. 5, and FIG. 5 is a sectional view taken along line AA of FIG.

Referring to FIG. 1, a forklift 1 having a folding structure of an outrigger according to the present invention has a small and lightweight forklift body 2 with a support wheel 4 overhanging to the fork side via left and right outriggers 3 and a center portion. An elevating mast 6 for supporting the fork 5 is erected on the part. The outriggers 3 and the forks 5 are provided so as to be foldable by rotating around a horizontal axis that forms the width direction of the vehicle body when the forklift 1 is loaded on a bed or the like of a truck for transportation. Reference numerals 3a and 5a show the folded states of the outrigger 3 and the fork 5, respectively.

In FIG. 2 or 3, the outrigger 3 is rotatably provided with respect to the main body 2 of the forklift, and has an auxiliary wheel 3b and an outrigger folding structure on the base side thereof. This folding structure includes a set member 7 fixed to the main body 2 side of the forklift and a lock member 8 that engages with the set member 7 so as to move back and forth.

The set member 7 has two positioning portions 7 a and 7 b corresponding to both the expanded and folded positions of the outrigger 3. Further, the lock member 8 has a U-shaped cross section capable of capturing both the outer surface of the outrigger 3 having a quadrangular cross section and the setting member 7, and has a rib having rigidity sufficient to support the action load of the outrigger. The joint portion 9, a screw member 10 for moving the engaging portion 9 back and forth, and a lever 10a for rotating the joint member 9 are provided.

In FIG. 4, the two positioning portions 7a and 7b of the setting member 7 make an angle difference of 90 degrees corresponding to both the unfolded and folded positions of the outrigger 3. Further, the main body 2 of the forklift is provided with stoppers 2a and 2b for restricting the rotation range of the outrigger 3. The stopper 2a corresponding to the lateral position is made of an elastic material to cushion the outrigger 3 when it is deployed.

In FIG. 5, a fixed shaft 2c is provided from the main body portion 2 of the forklift truck in the width direction thereof, an outrigger 3 is rotatably fitted to the fixed shaft 2c, and a stopper 2d is attached to the shaft end of the fixed shaft 2c. To provide. A screw member 10 is screwed into the center of the fixed shaft 2c, and the screw member 10 rotatably fits the engaging portion 9 of the lock member 8 between the large and small flanges 10b and 10c. When the screw member 10 is rotated, the engaging portion 9 is advanced and retracted as the screw member 10 is advanced and retracted, and the engaging portion 9 can capture both the outer surface of the outrigger 3 and the positioning portions 7a and 7b of the setting member 7.

The operation of the folding structure of the outrigger having the above structure will be described below.

FIG. 6 is a sectional view of an essential part showing the folding process, and FIG. 7 is a side view showing the outrigger when it is folded.

By lowering the folded fork 5a of FIG. 1 and supporting the vehicle load by this fork 5a, the supporting wheel 4 at the tip of the outrigger 3 is lifted from the road surface, and The screw member 10 is loosened via the second lever 10a.

As shown in FIG. 6A, as the screw member 10 retracts, the engaging portion 9 of the lock member 8 that has captured both the outer side surface of the outrigger 3 and the setting member 7 disengages from the setting member 7. To do. As a result, the outrigger 3 is rotatable, so that the outrigger 3 can be rotated to the vertical position.

When the outrigger 3 is rotated to the vertical position, the lock member 8 that captures only the outrigger 3 is rotated together with the rotation of the outrigger 3, as shown in FIG. At this time, the rotation of the lock member 8 is restricted by the stopper 2b of FIG. 7, and the lock member 8 faces the positioning portion 7b on the vertical position side of the set member 7.

By tightening the screw member 10 via the lever 10a, the lock member 8 advances to the set member 7 side as the screw member 10 advances in the axial direction, and as shown in FIG. The engaging portion 9 of 8 captures the positioning portion 7b of the setting member 7 together with the outer surface of the outrigger 3, and engages and fixes the outrigger 3 in the vertical position.

In this case, even if there is a slight angle difference between the engaging portion 9 and the positioning portion 7b, the locking member 8 can be advanced by a slight lever operating force through the screw member 10. The set member 7 can be easily captured, and the outrigger 3 can be securely fixed in the vertical position. The same applies to fixing the outriggers 3 in the lateral position.

When the outrigger 3 is folded, the auxiliary wheel 3b at the base end thereof is positioned below, and the fork supporting the vehicle body is lifted to lower the vehicle body. As shown in FIG. 7, the auxiliary wheel 3b is lowered. Is touched down and the car body can be moved. In this state, loading onto a truck is performed.

[0024]

[Effect of device]

 As described above, the screw member for moving the locking member forward and backward, and the engaging portion having a U-shaped cross section capable of catching the set member together with the outrigger and having rigidity sufficient to support the action load of the outrigger. Since the lock member is provided with the lock member, the lock member is moved forward and backward with respect to the set member by the rotation of the screw member, and the engaging portion captures both the outrigger and the set member and Supports the action load of the outrigger.

Therefore, since the lock member can be advanced and retracted by a light work by rotating the screw member, the work of switching the vertical position or the horizontal position of the outrigger can be efficiently performed, and the lock member Since there is no gap in the engaging portion that causes play, sufficient rigidity can be secured, and the cargo handling capacity of the small fork can be improved.

[Brief description of drawings]

FIG. 1 is a side view of a forklift having an outrigger folding structure according to the present invention.

FIG. 2 is a perspective view showing an embodiment of the present invention.

FIG. 3 is an exploded perspective view of FIG.

FIG. 4 is a side view of an embodiment of the present invention.

5 is a sectional view taken along line AA of FIG.

FIG. 6 is a sectional view of an essential part showing a folding process of an outrigger.

FIG. 7 is a side view showing the outrigger when folded.

FIG. 8 is a side view of a conventional outrigger folding structure and a plan view showing a main part thereof.

[Explanation of symbols]

1 ... Forklift, 2 ... Main body, 2a, 2b ... Stopper, 2c ... Fixed shaft, 3, 3a ... Outrigger, 3b ... Auxiliary wheel, 4 ... Support wheel, 5, 5a ... Fork, 6 ... Lifting mast, 7 ... Set Member, 7a, 7b ... Positioning part, 8 ... Lock member, 9 ... Engagement part, 10 ... Screw member, 10a ... Lever, 10b, 10c ... Flange.

Claims (1)

[Scope of utility model registration request] 1. A set member forming a fixed side for fixing the outrigger rotatably to a main body of a forklift and fixing the outrigger at respective positions during deployment and folding. In a folding structure of an outrigger for a forklift having a lock member that can be engaged, a positioning portion that corresponds to both the expansion and folding positions of the outrigger is formed in the set member, and a locking member that engages with this positioning portion is formed. Is provided with a screw member for moving the lock member forward and backward, and an engaging portion having a U-shaped cross section capable of catching both the outrigger and the setting member and having rigidity sufficient to support the action load of the outrigger. Folding structure for outriggers for forklifts.