JP5871699B2 - Vibration control pallet - Google Patents

Description

  The present invention relates to a vibration control pallet that reduces vibrations to cargo when carrying cargo such as heavy goods.

  In general, a pallet is used to store and transport a heavy cargo such as an article by a forklift. As a conventional pallet of this type, a vibration control pallet with a vibration isolation element (buffer material) that reduces vibration to the cargo between the upper platform on which the cargo is placed and the lower platform installed on the floor. Is known (see, for example, Patent Document 1).

  In the device described in Patent Document 1, the vibration isolating member interposed between the upper frame and the lower frame has an elastic part that is elastically deformed. The elastic portion has a structure in which ring-shaped rubber members and disk-shaped partition plates are alternately arranged and stacked, and the upper end of the elastic portion is a substantially rectangular plate-shaped bracket with respect to the upper base. The lower end is fastened and fixed to the top plate portion of the box-like base portion fixed to the undercarriage by bolts.

  Further, as a member having a function of reducing (absorbing) vibration like the above vibration-proof member, a rubber displacement absorber having flanges integrally formed at both ends of a cylindrical main body is known (for example, Patent Documents). 2).

  The one described in Patent Document 2 has a structure in which a bracket having a cross-sectional crank shape is sandwiched from both sides of a flange and fastened and fixed to the lower surface of the gantry and the upper surface of the floor surface by bolts.

JP 2007-22604 (paragraphs 0032 to 0034, FIGS. 5 and 6) Japanese Utility Model Publication No. 6-82449 (FIGS. 7 to 9)

  However, the structure described in Patent Document 1 has a complicated structure because the elastic portion of the vibration isolation element (buffer material) is a structure in which ring-shaped rubber members and disk-shaped partition plates are alternately arranged and stacked. In addition, the upper and lower ends of the elastic portion are fastened and fixed to the upper and lower mounts by bolts via brackets and box-shaped base portions that are substantially rectangular plates, respectively. Assembly is troublesome.

  It is also conceivable to apply the displacement absorber described in Patent Document 2 having a simple structure instead of the vibration isolating element (buffer material) described in Patent Document 1. However, since the displacement absorber described in Patent Document 2 is a rubber member in which flanges are integrally formed at both ends of the cylindrical main body, it cannot be directly attached to the upper frame and the lower frame in order to provide strength. First, in order to attach to the upper and lower bases, it is necessary to clamp and fix the brackets with a cross-sectional crank shape from both sides of the flange of the displacement absorber, and fasten them to the lower surface of the upper base and the upper surface of the lower base with bolts. is there. Therefore, there is a concern that the number of components for attachment (assembly) increases and that the assembly is troublesome.

  The present invention has been made in view of the above circumstances, and provides a vibration damping pallet that facilitates attachment (assembly) between the gantry and the cushioning material and provides strength to the attachment portion (assembly portion). The purpose is to provide.

In order to solve the above-mentioned problems, the present invention is configured such that a plurality of elastically deformable cushioning materials are interposed between a pair of vertically opposed stands, and a lift fork can be inserted into a gap between the adjacent cushioning materials. The damping pallet, wherein the cushioning material is formed of a rubber member and has outward flanges formed integrally with the cylindrical main body at both opening ends of the cylindrical main body. Rutotomoni mounting hole provided in the inward flange, the metal collar is inserted into the mounting hole, the metal collar has locking screw is formed to be through, it said platform constitutes the periphery of the cross-platform outside The deck material and at least one inner deck material connected to the opposed outer deck material are formed in a cross-sectional hollow rectangular shape, and the fixing screw member is formed in the hollow portion of the outer deck material and the inner deck material. Threaded receiver Formed by placing, characterized in that (claim 1).

By comprising in this way, a buffer material and a mount can be fastened and fixed with a fixing screw member in the state which inserted metal collar in the attachment hole provided in the outward flange of the buffer material. Further, the gantry can be reduced in weight, and the coupling between the fixing screw member and the gantry can be strengthened.

The present invention smell Te, in the receiving seat provided with the cushioning material of the tubular body opening communicable with an opening hole of the portion in between the cushioning member and the seat of the outer decking and inner decking preferably provided with air circulation holes communicating the said opening and openings (claim 2).

Ri by the such a configuration, the opening and capable of communicating opening hole of the cylindrical body of the buffer material in the receiving seat provided, the cushioning material in the outer decking and inner decking and the receiving seat and By providing an air flow hole that communicates the opening and the opening hole in the portion between the two, the air in the cylindrical body of the cushioning material and the hollow portions of the outer and inner deck materials when the cushioning material is elastically deformed The entrance and exit can be made possible, and the cushioning material can be given cushioning properties.

In addition, in this invention, it is preferable that the mount and the metal collar are formed of an aluminum member , and the fixing screw member is formed of a stainless steel member.

  By comprising in this way, corrosion resistance can be given to the mount itself and the attachment part of a mount and a buffer material.

  According to this invention, since it is configured as described above, the following remarkable effects can be obtained.

  (1) According to the invention described in claim 1, the buffer material and the mount can be fastened and fixed by the fixing screw member in a state in which the metal collar is inserted into the mounting hole provided in the outward flange of the buffer material. Therefore, it is possible to facilitate attachment (assembly) between the gantry and the cushioning material and to give strength to the attachment portion (assembly).

(2) Further, according to the invention described in claim 1 , since the gantry can be reduced in weight and the coupling between the fixing screw member and the gantry can be strengthened, in addition to the above (1), Furthermore, the weight of the pallet can be reduced.

(3) According to the invention described in claim 2 , it is possible to allow the air to enter and exit from the cylindrical main body of the cushioning material and the outside and the hollow portion of the inner deck material when the cushioning material is elastically deformed. Since the cushioning property can be imparted to the material, it is possible to enhance the vibration isolation effect associated with the elastic deformation of the cushioning material.

(4) According to the invention described in claim 3 , since the gantry itself and the mounting portion of the gantry and the cushioning material can be provided with corrosion resistance, the pallet can be provided with corrosion resistance and the life can be increased. Can do.

It is a schematic plan view of the vibration damping pallet according to the present invention. It is the I section expanded sectional view (b) of side view (a) and (a) of FIG. It is a disassembled sectional view which shows the attachment part of the upper stand and the shock absorbing material in this invention. It is an expanded sectional view which follows the II-II line of FIG. It is the expanded sectional view (a) in alignment with the III-III line of FIG. 1, and the IV section expanded sectional view (b) of (a). It is a cross-sectional perspective view which shows the buffer material and collar in this invention. It is sectional drawing (a) which shows the attachment part of the deck material and receiving seat in this invention, and the bottom view (b) of (a). It is a perspective view which shows the receiving seat and fixing bolt in this invention. It is the plane sectional view (a) which shows another form of the attachment hole of the shock absorbing material in this invention, and the plane sectional view (b) which shows another form of a color | collar. It is the longitudinal cross-sectional view (a) which shows another form of the attachment hole of the shock absorbing material in this invention, and the longitudinal cross-sectional view (b) which shows another form of a color | collar. It is a principal part expanded sectional view which shows another embodiment of the damping pallet which concerns on this invention.

  Hereinafter, embodiments of a vibration damping pallet according to the present invention will be described in detail with reference to the accompanying drawings.

  As shown in FIGS. 1 and 2, the vibration damping pallet according to the present invention has a plurality of flexible shock-absorbing materials that can be elastically deformed between a pair of vertically opposed frames, that is, an upper frame 11 and a lower frame 12. A lift fork is formed so as to be inserted into a gap s between adjacent cushioning materials 20.

  In this case, the cushioning material 20 is formed of a rubber member such as natural rubber or chloroprene rubber, for example. As shown in FIGS. An outward flange 22 having a shape is provided, and mounting holes 23 are provided at four corners of the outward flange 22.

  In addition, an aluminum collar 30, for example, is fitted in the mounting hole 23, and a fixing bolt member 50, for example, stainless steel, which is a fixing screw member penetrating the collar 30, is a hollow portion of the upper base 11 or the lower base 12 described later. 16 is screwed to a receiving seat 40 disposed in the interior 16 (see FIG. 2B).

  The upper base 11 and the lower base 12 are similarly formed in a rectangular shape. Here, the structure of the upper frame 11 and the lower frame 12 will be described on behalf of the upper frame 11. As shown in FIG. 1, the upper base 11 includes four outer deck members 13 constituting four peripheral sides and a first inner deck member 14 that connects intermediate portions of one opposing outer deck member 13. And a plurality of (in the drawing, six cases are shown) second inner deck materials 15 which are arranged in parallel with the first inner deck material 14 and connect the opposing outer deck materials 13 to each other. It is fixed by.

  In this case, the outer deck member 13 and the first inner deck member 14 are formed of an extruded aluminum member having a hollow rectangular cross section as shown in FIGS. Further, as shown in FIG. 5, the second inner deck member 15 is formed of a flat rectangular aluminum extruded shape member having a plurality of rectangular hollow portions 15b partitioned by a partition wall 15a. Further, anti-slip ridges 15c are provided on the surface of the second inner deck member 15 at appropriate intervals (see FIG. 5B).

  As shown in FIG. 8, the receiving seat 40 is formed of, for example, an aluminum rectangular plate material, and fixing screw holes 41 to which fixing bolts 50 are screwed are provided at four corners. ing. In addition, an attachment screw 60 for fixing the receiving seat 40 in the hollow portion 16 of the outer deck material 13 and the first inner deck material 14 is screwed to an inner portion of the two opposite sides of the receiving seat 40. A mounting screw hole 42 is provided.

  A center hole 43 (hereinafter referred to as an opening hole 43) that can communicate with the opening 21 a provided in the cylindrical main body 21 of the cushioning material 20 is provided at the center of the receiving seat 40. The opening hole 43 is connected to the opening 21a of the cushioning material 20 via an air circulation hole 44 provided in a portion between the cushioning material 20 and the receiving seat 40 in the outer deck material 13 and the first inner deck material 14. Communicate. 4 and 5, the case where the air circulation holes 44 are provided in both the upper frame 11 and the lower frame 12 has been described. However, the air circulation holes 44 are provided in either the upper frame 11 or the lower frame 12. Also good.

  As shown in FIG. 1, the receiving seat 40 formed as described above includes both end portions and an intermediate portion in the hollow portion 16 of the opposite outer deck material 13, and the hollow portion of the opposite outer deck material 13. 16 and an intermediate portion in the hollow portion 16 of the first inner deck material 14. At this time, as shown in FIG. 7, the receiving seat 40 screw-couples the mounting screw 60 penetrating the mounting hole 17 provided in the outer deck material 13 and the first inner deck material 14 to the mounting screw hole 42. Thus, the outer deck material 13 and the first inner deck material 14 are fixed. In this case, the opening end of the mounting screw hole 42 is formed in an enlarged taper shape, and the mounting screw 60 is formed by a countersunk screw. Further, a through hole 18 is provided in a portion where the fixing screw hole 41 of the receiving seat 40 is located in the outer deck material 13 and the first inner deck material 14.

  In order to attach the upper pedestal 11 and the lower pedestal 12 and the cushioning material 20, first, as shown in the two-dot chain line in FIG. 3 and FIG. The fixing bolt 50 penetrating the collar 30 is inserted into the mounting hole 23 provided in the cushioning material 20 to insert the collar 30 into the mounting hole 23, and the screw portion 51 is connected to the outer deck material 13 and the first inner side. The upper frame 11, the lower frame 12 and the buffer material 20 are fastened and fixed by screwing to the fixing screw hole 41 of the receiving seat 40 through the through hole 18 provided in the deck material 14 (see FIG. 2B). ).

  In order to facilitate the insertion (insertion) of the collar 30 into the mounting hole 23 of the cushioning material 20, for example, as shown in FIG. 9A (a), the inner diameter of the mounting hole 23 is set to the outer diameter of the collar 30. A plurality of protrusions 24 that are formed larger and are in contact with the outer peripheral surface of the collar 30 at appropriate intervals on the inner peripheral surface of the mounting hole 23, or as shown in FIG. The inner diameter of the collar 30 may be larger than the outer diameter of the collar 30, and a plurality of protrusions 24 </ b> A that contact the inner peripheral surface of the mounting hole 23 may be provided on the outer peripheral surface of the collar 30 at an appropriate interval. Further, as shown in FIG. 9B (a), a diameter-expanded taper portion 25 may be provided at the opening end of the mounting hole 23.

  Further, instead of the mounting hole 23 and the collar 30 of the above embodiment, as shown in FIG. 9B (b), a diameter-expanded step portion 23a is formed at the opening end of the mounting hole 23, and the diameter of the collar 30 is increased at one end. By forming the flange portion 31 to be inserted into the stepped portion 23a, it is possible to prevent the shock absorbing material 20 from being damaged when the fixing bolt 50 is fastened.

  According to the vibration damping pallet of the embodiment configured as described above, the shock absorber 20 with the fixing bolt 50 in a state where the aluminum collar 30 is fitted in the mounting hole 23 provided in the outward flange 22 of the shock absorber 20. And the upper base 11 and the lower base 12 can be fastened and fixed, so that the upper base 11, the lower base 12 and the cushioning material 20 can be easily attached (attached), and the attachment part (attachment part) can be attached. Strength can be given.

  Further, since the outer deck member 13, the first inner deck member 14 and the second inner deck member 15 constituting the upper platform 11 and the lower platform 12 are formed of a hollow extruded profile made of aluminum, the upper platform 11 In addition, the weight of the undercarriage 12 can be reduced, and the weight of the pallet can be reduced.

  In addition, the upper pedestal 11 and the lower pedestal 12 can be provided with corrosion resistance, and the attachment portions of the upper pedestal 11 and the lower pedestal 12 and the cushioning material 20 can be provided with corrosion resistance, so that the pallet is provided with corrosion resistance. In addition, the lifetime can be increased.

  Furthermore, the buffer material 20 when the buffer material 20 is elastically deformed by communicating the opening hole 43 provided in the receiving seat 40 and the opening 21a of the cylindrical main body 21 of the buffer material 20 through the air circulation hole 44. The inside and the outside of the cylindrical main body 21 and the outer deck material 13 and the hollow portion 16 of the first inner deck material 14 can be allowed to enter and exit, and the cushioning material 20 can be cushioned. Therefore, it is possible to enhance the vibration isolation effect associated with the elastic deformation of the buffer material 20.

  FIG. 10 is an enlarged sectional view showing a main part of another embodiment of the vibration control panel according to the present invention. The vibration damping pallet shown in FIG. 10 is provided with a center hole 43A (hereinafter referred to as an opening hole 43A) having the same diameter as the opening 21a that can communicate with the opening 21a of the cylindrical body 21 of the cushioning material 20 in the receiving seat 40. The outer deck material 13 and the first inner deck material 14 are provided with a plurality of air circulation holes 44 communicating with the opening 21a and the opening hole 43A in a portion between the cushioning material 20 and the receiving seat 40.

  By configuring in this way, the hollow portion 16 of the cylindrical body 21 of the cushioning material 20 and the outer deck material 13 and the first inner deck material 14 when the cushioning material 20 is elastically deformed by the plurality of air circulation holes 44. The inside air can be made to enter and exit, and the cushioning material 20 can be cushioned. Therefore, the vibration-proofing effect accompanying the elastic deformation of the buffer material 20 can be further enhanced.

  In the above embodiment, the case where the cushioning material 20 is attached to one first inner deck material 14 constituting the upper base 11 and the lower base 12 has been described. However, the first inner deck material 15 is replaced with the first inner deck material 15. A plurality of the inner deck materials 14 may be provided, and the buffer material 20 may be similarly attached to each first inner deck material 14. That is, at least one first inner deck material 14 connected to the outer deck material 13 is formed in a cross-sectional hollow rectangular shape, and the outer deck material 13 and the hollow portion 16 of the first inner deck material 14 are formed. A receiving seat 40 to which the fixing bolt 50 is screwed may be disposed therein.

DESCRIPTION OF SYMBOLS 11 Upper mount 12 Lower mount 13 Outer deck material 14 1st inner deck material 15 2nd inner deck material 16 Hollow part 20 Cushioning material 21 Cylindrical main body 21a Opening part 22 Outward flange 23 Mounting hole 30 Collar 40 Receptacle 41 Screw hole 43, 43A Opening hole 44 Air circulation hole 50 Fixing bolt (fixing screw member)
s gap

Claims (3)

A damping pallet in which a plurality of elastically deformable cushioning materials are interposed between a pair of stands facing up and down, and a lift fork can be inserted into a gap between adjacent cushioning materials,
The cushioning material is formed of a rubber member, and has an outward flange formed integrally with the cylindrical main body at both opening ends of the cylindrical main body, and mounting holes are provided in the outward flange. is Rutotomoni, metal collar is inserted into the mounting hole, the metal collar has locking screw is formed to be through,
The pedestal is formed by forming an outer deck material that forms a periphery of the pedestal and at least one inner deck material connected to the opposing outer deck material in a shape having a hollow rectangular cross section, and the outer deck material. And a receiving seat to which the fixing screw member is screwed in the hollow portion of the inner deck material.
Vibration pallet characterized by that. The vibration damping pallet according to claim 1 ,
The receiving seat is provided with an opening hole capable of communicating with the opening of the cylindrical body of the cushioning material, and the opening and the opening are formed in the outer deck material and the inner deck material between the cushioning material and the receiving seat. An anti-vibration pallet comprising an air circulation hole communicating with the hole. In the vibration damping pallet according to claim 1 or 2 ,
A vibration damping pallet comprising the pedestal and the metal collar formed of an aluminum member, and the fixing screw member formed of a stainless steel member.

Images