JP2017124765A - Suspension assembly conveying device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a conveying device free of a risk of falling of a nut in transportation of a suspension assembly.SOLUTION: As shown in Fig.(a), a hub 13 comprises wheel fixing bolts 94, 94T. An attachment 50 comprises a flange 52, a neck part 56, and a head part 55. The flange 52 comprises a bag-like shaft retaining member 70 and a shaft-like member 75 enabled to rotate and move at a certain distance in an axial direction relative to the shaft retaining member 70. As shown in Fig.(b), the shaft-like member 75 is screwed in the wheel fixing bolt 94T to disallow the attachment 50 to come out of the hub 13. Transporting work is performed in this state. After the transportation, the attachment 50 is removed from the hub 13 as shown in Fig.(a).EFFECT: There is not a risk that the shaft-like member 75 falls from the shaft retaining member 70.SELECTED DRAWING: Figure 7

Description

  The present invention relates to a suspension assembly conveying apparatus for attaching left and right suspension assemblies of front wheels or rear wheels of an automobile or the like to a vehicle body in a state of being assembled in advance.

In a vehicle assembly factory, in order to improve work efficiency, a suspension assembly is formed in advance and the suspension assembly is assembled into a vehicle body.
Such a suspension assembly is conveyed from an operation process for forming the suspension assembly to a process for incorporating the suspension assembly into the vehicle. For this purpose, various conveying devices are used (see, for example, Patent Document 1 (FIG. 4)).

Patent document 1 is demonstrated based on the following figure.
FIG. 9 is a diagram for explaining the basic principle of the conventional technique.
As shown in FIG. 9A, the hub 101 includes an annular portion 102 that receives a load by being fitted to the center portion of the wheel, and wheel fixing bolts 103 and 104 that stop the wheel. The suspension assembly is transported with no wheels attached, that is, with the wheel fixing bolts 103 and 104 exposed. The attachment 110 for conveyance is needed in the case of this conveyance.

  In Patent Document 1, a disc-shaped main body 114 having a fitting hole 111 into which the annular portion 102 fits and bolt holes 112 and 113, a neck portion 115 extending from the main body portion 114, and a tip of the neck portion 115 are provided. The attachment 110 provided with the head part 116 to be prepared was prepared.

  As shown in FIG. 9B, the attachment 110 is applied to the hub 101, and the nut 117 is lightly tightened to the wheel fixing bolt 104. By grasping the neck portion 115, the attachment 110 and the hub 101 can be transported. In addition, since the fitting part 102 shown to Fig.9 (a) fits in the fitting hole 111, there is no worry that big force will be applied to the wheel fixing bolt 103,104. That is, the nut 117 need only be lightly tightened.

When the transportation is finished, the nut 117 in FIG. 9B is loosened and removed from the wheel fixing bolt 104. As shown in FIG. 9A, the nut 117 is removed and the attachment 110 is removed from the hub 101.
At this time, since the nut 117 is a small part, there is a concern that the nut 117 may be dropped or lost.

  Since it is lightly tightened, the nut 117 may be loosened and dropped during transportation. When the nut 117 falls off, it is necessary to search so as not to cause problems such as being caught by various devices on the line. The search operation affects the production operation. Measures are required to maintain productivity.

Japanese Patent No. 5703329

  It is an object of the present invention to provide a transport device that does not cause a nut to fall off during transportation of a suspension assembly.

The invention according to claim 1 is a suspension assembly conveying device that lifts and conveys a suspension assembly having left and right hubs for attaching wheels to both ends in the vehicle width direction,
Left and right attachments that are detachably assembled to the hub from the outside in the vehicle width direction, left and right arm members that are displaced in the vehicle width direction and have lower ends that hold the engaging portions provided on the attachment, and these left and right attachments It consists of a transportation means that moves the arm member integrally,
The hub includes a plurality of wheel fixing bolts for fixing the wheel or an internal thread portion into which the wheel fixing bolt is screwed.
The attachment includes a bolt hole through which the plurality of wheel fixing bolts pass or a bolt hole through which a bolt portion having the same bolt diameter as the wheel fixing bolt passes, and the wheel fixing bolt at one end of the plurality of bolt holes. A shaft-like member that has a female screw portion to be screwed into the bolt portion, a finger-hanging portion on which the worker hangs a tool or a finger at the other end, and extends along the axis of the wheel fixing bolt, and the shaft-like member is fixed to the wheel A shaft holding member is provided that is movable along a shaft of the bolt only for a certain distance and is rotatably held around the shaft of the wheel fixing bolt.

  The invention according to claim 2 is characterized in that the shaft-shaped member and the shaft holding member are attached to the bolt hole at the highest position among the plurality of bolt holes.

  The invention according to claim 3 is characterized in that the finger hook portion has the same shape as a wheel fixing nut used in a set with a wheel fixing bolt.

  In the invention which concerns on Claim 4, a finger hook part is a wheel fixing nut used with a wheel fixing bolt and a set, It is characterized by the above-mentioned.

  The invention according to claim 5 is characterized in that the attachment includes a metal flange having a plurality of bolt holes and a pad interposed between the flange and the hub.

  In the invention according to claim 6, the pad has a through hole through which the wheel fixing bolt is passed, and the diameter of the through hole is set smaller than the diameter of the bolt hole.

  The invention according to claim 7 is characterized in that the pad is made of resin.

In the invention according to claim 1, the attachment can be moved only in a certain distance by a shaft-shaped member having a female threaded portion or a bolt portion at one end and a finger-hook portion in one of the bolt holes. And a shaft holding member for holding. Since the shaft-like member corresponding to the conventional nut or bolt is held by the shaft holding member, the shaft-like member does not come off from the attachment.
Therefore, a transport device that does not cause the nuts or bolts to fall off during transportation of the suspension assembly is provided.

  In the invention which concerns on Claim 2, the shaft-shaped member and the shaft holding member are attached to the bolt hole at the highest position among the plurality of bolt holes. When attaching and detaching attachments, the attachment is placed near the work floor. Then, the upper bolt hole is easy to see and handle from the operator. Therefore, handling of the shaft-shaped member becomes easy.

  In the invention which concerns on Claim 3, a finger hook part is the same shape as a wheel fixing nut. Since workers are accustomed to wheel fixing nuts, the work can be performed without a sense of incongruity if the finger hook is the same shape as the wheel fixing nut.

  In the invention which concerns on Claim 4, a finger hook part is a wheel fixing nut itself. Since the worker is accustomed to the wheel fixing nut, if the finger hook is the wheel fixing nut itself, the operator can work more comfortably.

  In the invention according to claim 5, the attachment includes a metal flange and a pad softer than the flange. A soft pad hits the hub. There is no worry about the flange hitting the hub.

  In the invention which concerns on Claim 6, the hole diameter of the through-hole of a pad is smaller than the bolt hole of a flange. Due to the difference in diameter, the male threaded portion of the wheel fixing bolt hits the pad but does not hit the hard flange. Therefore, the wheel fixing bolt is appropriately protected.

  In the invention according to claim 7, the pad is soft because it is made of resin. Since the soft pad hits the hub, the hub is appropriately protected and is not damaged even if the male threaded portion of the wheel fixing bolt contacts.

It is a perspective view of a suspension assembly. It is a front view of a suspension assembly conveying apparatus. FIG. 3 is a view taken along arrow 3-3 in FIG. 2. It is sectional drawing of an attachment. It is an exploded view of a shaft holding member and a shaft-shaped member. It is an effect | action figure of a shaft holding member and a shaft-shaped member. It is an effect | action figure of an attachment. It is a figure explaining the example of a change of a shaft holding member and a shaft-shaped member. It is a figure explaining the basic principle of the prior art.

  Embodiments of the present invention will be described below with reference to the accompanying drawings. The drawings are viewed in the direction of the reference numerals.

  As shown in FIG. 1, the suspension assembly 10 includes an axle beam 11 that extends in the vehicle width direction, left and right suspensions 12 and 12 that are attached to both ends of the axle beam 11 and extend upward, and both ends of the axle beam 11. It consists of left and right hubs 13, 13 that are rotatably mounted and wheels are mounted in a later process, and a differential case 14 provided in the center of the axle beam 11. Further, the suspension 12 includes a damper 15 and a spring 16.

A preferred example of the suspension assembly transport apparatus 20 that transports the suspension assembly 10 having such a structure will be described below.
As shown in FIG. 2, the suspension assembly transporting device 20 is provided at left and right attachments 50, 50 that are detachably assembled to the hubs 13, 13 from the outside in the vehicle width direction, and swings in the vehicle width direction. The left and right arm members 21L, 21R (L is a subscript indicating left, R is right. The same applies hereinafter) with which the receiving members 45, 45 are fitted to the attachments 50, 50, and the arm members 21L, 21R are moved up and down. And conveying means 22 for horizontal movement.

The conveying means 22 is a so-called ceiling conveyor, and the structure is arbitrary, and the elevating frame 23 is provided in the lower part. That is, the elevating frame 23 moves up and down while moving in the drawing front and back direction.
The elevating frame 23 includes horizontal beams 25 and 26 that are passed to the vertical beams 24 and 24, and hooks 27 and 27 that can hang springs 16 and 16 that are components for a suspension assembly on the lower horizontal beam 25. Provided are hooks 29 and 29 that can be attached to the left and right attachments 50 and 50 when not in use. Boxes 31 and 31 for inserting bolts and the like into these hooks 29 and 29 are provided. Further, a differential holding mechanism 40 is provided at the center of the horizontal beam 25.

  The left and right arm members 21L, 21R are supported on the middle horizontal beam 26 by the support shafts 33, 33 so as to be swingable in the horizontal direction of the drawing. A lever 34L extends upward from the left arm member 21L, a lever 34R extends downward from the right arm member 21R, and a tie rod 36 is passed to these levers 34L, 34R.

  Also, the stay 37L extends obliquely from the horizontal beam 26 to the lower left and obliquely, and the stay 37R extends obliquely from the lower right. The arms 38L and 38R extend from the arm members 21L and 21R toward the center, and the stay 37L and the arm 38L. Are connected by a toggle spring 39L, and the stay 37R and the arm 38R are connected by a toggle spring 39R.

  The differential holding mechanism 40 is provided on a bracket 41 fixed to the horizontal beam 25, chains 42 and 42 lowered from the bracket 41, an elevating plate 43 suspended by these chains 42 and 42, and the elevating plate 43. J-shaped hooks 44, 44, 44.

  As shown in FIG. 3, the receiving member 45 includes a guide plate 46, side plates 47 and 47 disposed on both sides of the guide plate 46, and a holding portion 48 passed to the distal ends of the side plates 47 and 47. Yes.

  The holding portion 48 is formed with a positioning recess 49 opened upward. The width W of the positioning recess 49 corresponds to the outer diameter of the neck portion (FIG. 4, reference numeral 56). The upper portion of the positioning recess 49 has V-shaped inclined portions 49a and 49a, guides the neck portion (FIG. 4, reference numeral 56), and engages with the U-shaped positioning recess 49 provided in the holding portion 48. Through the neck portion 56 as a portion, the head portion 55 prevents the removal and guides it to a predetermined position. The positioning concave portion 49 may be any U-shaped portion, V-shaped portion opened upward, and similar concave portions, and the shape is arbitrary.

  As shown in FIG. 4, the attachment 50 includes a cylindrical portion 51, a flange 52 formed integrally with the cylindrical portion 51, a shaft holding member 70 attached to one surface of the flange 52, and the other surface of the flange 52. And a pad 53 attached to the pad.

The cylindrical portion 51 includes a neck portion 56 having a fitting hole 54 at one end and a head portion 55 at the other end. The cylindrical portion 51 and the flange 52 are made of a metal such as carbon steel. The flange 52 has a bolt hole 57 and a screw hole 58.
The pad 53 is a resin donut plate softer than metal, and is fixed to the flange 52 so as to be removable by screws 59. The pad 53 has a through hole 61 having a smaller diameter than the bolt hole 57.

As shown in FIG. 5, the shaft holding member 70 is a bag-shaped member made of a bottomed cylindrical body 73 having a bottom 72 with a hole 71. A shaft-like member 75 is fitted in the hole 71 so as to be movable in the axial direction.
The shaft member 75 includes a large diameter portion 76 having a larger diameter than the hole 71, a medium diameter portion 77 having a smaller diameter than the large diameter portion 76 and a small diameter of 1.0 to 2.0 mm from the hole 71, and the medium diameter portion. This is a solid shaft composed of a small-diameter portion 78 having a smaller diameter than 77. The small diameter part 78 is provided with a pin hole 79 penetrating in the direction perpendicular to the axis.

  The finger rest 80 is attached to such a small diameter portion 78. The finger hook 80 preferably uses a wheel fixing nut 81. That is, the insertion hole 82 for inserting the small diameter portion 78 and the pin hole 83 are processed in a commercially available wheel fixing nut 81. In addition, the operator may hang a tool such as a spanner in addition to the operator hooking his finger on the finger hanging portion 80.

  The shaft-like member 75 is set on the shaft holding member 70 so that the small diameter portion 78 and the medium diameter portion 77 are passed through the hole 71. Next, the wheel fixing nut 81 is set in the small diameter portion 78, and the spring pin 84 is inserted into the pin holes 79 and 83. The diameter of the hole 71 is smaller than the outer diameter of the wheel fixing nut 81. The shaft holding member 70 that has been set is attached to the flange 52 with a lock bolt 85 shown in FIG.

  As shown in FIG. 6A, the shaft-like member 75 is provided with a female screw portion 86 in the middle diameter portion 77, and a large diameter hole 87 having a larger diameter than the female screw portion 86 in the large diameter portion 76. ing. When the finger hook 80 is pulled, the large-diameter portion 76 is hooked on the bottom 72, so there is no concern that the shaft-like member 75 is detached from the shaft holding member 70. Since the gaps S and S of 0.5 to 1.0 mm on one side exist between the bottom portion 72 and the medium diameter portion 77, the shaft member 75 rotates around the axis.

  When the finger hanging portion 80 is pushed, as shown in FIG. 6B, the large diameter portion 76 moves in the axial direction until it hits the flange 52 or until the finger hanging portion 80 hits the bottom portion 72. That is, the shaft-like member 75 moves in the axial direction by the distance L.

  As shown in FIG. 7A, the hub 13 includes a boss portion 91 having a bearing 89, a cup-shaped hub body 92 integrally assembled with the boss portion 91, and a wheel projecting from the hub body 92. An annular portion 93 that receives a load by being fitted to the center portion of the main body, and a plurality (four or five) of wheel fixing bolts 94T, 94 provided on the hub main body 92 so as to surround the annular portion 93.

  The attachment 50 has a fitting hole 54 that fits into an annular portion 93 that is used for attaching a wheel of a normal wheel, and has bolt holes 57T and 57 (T is a subscript indicating that it is the uppermost bolt hole). A flange 52, a neck portion 56 extending from the flange 52, and a head portion 55 provided at the tip of the neck portion 56 are provided. The head portion 55 has a larger diameter than the neck portion 56.

The attachment 50 is fitted to the hub 13 in a close contact state in such a manner that the bolt holes 57T, 57 are fitted to the wheel fixing bolts 94T, 94.
Next, the operator turns the finger rest 80.
As shown in FIG. 7B, the attachment 50 is set on the hub 13. In this state, carrying work is carried out. After the carrying work, the attachment 50 is removed from the hub 13 as shown in FIG. 7A, but there is no fear that the shaft-like member 75 is detached from the shaft holding member 70 as described in FIG.
Even if the shaft-like member 75 is loosened during the transportation operation, the shaft-holding member 70 does not come off.
Therefore, there is no need to worry about the nut dropping off as in the prior art.

In FIG. 7A, when attaching / detaching the flange 52 to / from the wheel fixing bolts 94T, 94, care must be taken not to damage the male thread portions 95, 95 of the wheel fixing bolts 94T, 94.
As shown in FIG. 6A, the diameter of the through hole 61 of the pad 53 is made smaller than the diameter of the bolt hole 57. Then, the male screw part 95 contacts the through hole 61 but does not contact the bolt hole 57. The through hole 61 is formed of a soft resin. It does not contact the hard metal bolt hole 57. Therefore, there is no fear that the male screw portions 95 and 95 are damaged.

Further, in FIG. 7, when the shaft 52 is provided with a plurality of bolt holes 57, the shaft holding member 70 is desirably attached to the uppermost bolt hole 57T. If it is higher, the visual inspection and manual operation by the worker will be easier.
In addition, if it is a higher rank, the finger rest part 80 is accommodated between the inclined part 49a and the inclined part 49a shown in FIG. Therefore, there is no fear that the shaft holding member 70 interferes with the receiving member 45.

As described with reference to FIG. 5, it is recommended that the commercially available wheel fixing nut 81 be used for the finger hook 80. Since the operator is familiar with the normal wheel fixing nut, there is no sense of incongruity in the operation.
The finger hook portion 80 may cut out a block having the same shape as a commercially available nut and fit this into the small diameter portion 78. Since the shape is the same, there is no sense of incongruity in operation.
In addition, when cutting out a block, the finger-hanging part 80 may be a quadrangular prism or an octagonal prism.

Next, a modification according to the present invention will be described with reference to FIG. Elements common to those in FIG. 6 are denoted by reference numerals, and detailed description thereof is omitted.
As shown in FIG. 8A, the shaft-like member 75B has a large-diameter portion 76 having a larger diameter than the hole 71, a smaller diameter than the large-diameter portion 76, and a smaller diameter by 1.0 to 2.0 mm than the hole 71. This is a solid shaft including a medium diameter portion 77, a small diameter portion 78 having a smaller diameter than the medium diameter portion 77, and a bolt portion 96 extending from the large diameter portion 76 on the opposite side to the medium diameter portion 77. The small diameter part 78 is provided with a pin hole 79 penetrating in the direction perpendicular to the axis. The bolt diameter of the bolt part 96 is the same as the bolt diameter of the wheel fixing bolt 94.

  The finger rest 80 is attached to such a small diameter portion 78. The finger hook 80 preferably uses a wheel fixing nut 81. That is, the insertion hole 82 for inserting the small diameter portion 78 and the pin hole 83 are processed in a commercially available wheel fixing nut 81. In addition, the operator may hang a tool such as a spanner in addition to the operator hooking his finger on the finger hanging portion 80.

The shaft-like member 75B is set on the shaft holding member 70 so that the small diameter portion 78 and the medium diameter portion 77 are passed through the hole 71. Next, the wheel fixing nut 81 is set in the small diameter portion 78, and the spring pin 84 is inserted into the pin holes 79 and 83. The diameter of the hole 71 is smaller than the outer diameter of the wheel fixing nut 81. Therefore, the large diameter portion 76 and the bolt portion 96 are always in the bag-shaped shaft holding member 70.
The shaft holding member 70 that has been set is attached to the flange 52 with a lock bolt 85 shown in FIG.

As shown in FIG. 8B, in this example, the hub 13 is provided with a female screw portion 97. The operator puts the pad 53 on the hub 13 and turns the finger rest 80 with a tool or a finger. By this rotation, the bolt portion 96 is screwed to the female screw portion 87.
Therefore, the attachment 50 of the present invention can be applied to both the hub 13 with the wheel fixing bolts 94 and 94T and the hub 13 with the female screw portion 97 provided.

  The present invention is suitable for transporting the rear suspension assembly, but may be applied to transporting the front suspension assembly.

  The present invention only needs to be in a state in which no wheel is attached, and is suitable for transporting a suspension assembly including a hub.

  DESCRIPTION OF SYMBOLS 10 ... Suspension aggregate | assembly, 13 ... Hub, 20 ... Suspension aggregate conveyance apparatus, 21L, 21R ... Arm member, 22 ... Conveyance means, 50 ... Attachment, 53 ... Pad, 56 ... Engagement part (neck part), 57 ... Bolt hole, 57T ... uppermost bolt hole, 61 ... through hole, 70 ... shaft holding member, 75, 75B ... shaft member, 80 ... finger hook, 81 ... wheel fixing nut, 86 ... female screw provided on shaft member 94, wheel fixing bolt, 94T, uppermost wheel fixing bolt, 96 ... bolt portion, 97 ... female screw portion provided on the hub, L ... fixed distance.

Claims (7)

A suspension assembly transporting device that lifts and transports a suspension assembly having left and right hubs for attaching wheels to both ends in the vehicle width direction,
Left and right attachments that are detachably assembled to the hub from the outside in the vehicle width direction, left and right arm members that are displaced in the vehicle width direction and have lower ends that hold the engaging portions provided on the attachment, and these left and right attachments It consists of a transportation means that moves the arm member integrally,
The hub includes a plurality of wheel fixing bolts for fixing the wheel or an internal thread portion into which the wheel fixing bolt is screwed.
The attachment includes a bolt hole through which the plurality of wheel fixing bolts pass or a bolt hole through which a bolt portion having the same bolt diameter as the wheel fixing bolt passes, and the wheel fixing bolt at one end of the plurality of bolt holes. A shaft-like member that has a female screw portion to be screwed into the bolt portion, a finger-hanging portion on which the worker hangs a tool or a finger at the other end, and extends along the axis of the wheel fixing bolt, and the shaft-like member is fixed to the wheel A suspension assembly conveying device comprising: a shaft holding member that is movable only along a shaft of the bolt for a fixed distance and that is rotatable around the shaft of the wheel fixing bolt.   2. The suspension assembly transporting apparatus according to claim 1, wherein the shaft-shaped member and the shaft holding member are attached to the uppermost bolt hole among the plurality of bolt holes.   The suspension assembly conveying device according to claim 1 or 2, wherein the finger-hanging portion has the same shape as a wheel fixing nut used as a set with the wheel fixing bolt.   The suspension assembly conveying device according to claim 1, wherein the finger-hanging portion is a wheel fixing nut used as a set with the wheel fixing bolt.   5. The attachment according to claim 1, wherein the attachment includes a metal flange having the plurality of bolt holes and a pad interposed between the flange and the hub. Suspension assembly transfer device.   6. The suspension assembly conveying device according to claim 5, wherein the pad has a through hole through which the wheel fixing bolt is passed, and the diameter of the through hole is set smaller than the diameter of the bolt hole. .   The suspension assembly conveying apparatus according to claim 5 or 6, wherein the pad is made of resin.

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