JPS63502422A - Lift mast attachment device and removal method - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] The equipment and removal method for installing the lift mast is simple! FIELD OF THE INVENTION The present invention generally relates to a mounting device for pivotally mounting a lift mast to a frame; In detail, a work vehicle with a lift mast and a lift mast as a support for a work vehicle are described in detail. Installation for pivoting to the holding flange and frame work equipment and lift mast Relating to a method for separating from a vehicle.

Sen - Higashiichi Keiichistop Work vehicles, such as lift trunks, generally have a lift mast pivoted to the front end of the vehicle. I'm letting you do it. Lift masts are typically used to transport a vehicle's cargo for a given vehicle weight. Located between the front wheels of the vehicle and in close proximity to the vehicle to maximize carrying capacity. There is. United States Patent Act dated October 28, 1975 against Donald A. Green et al. No. 3.915,324, also 197 against Donald A. Green et al. No. 3,999,873, dated December 28, 2006, Robert D. No. 4,126,209, dated November 21, 1978, to Gins et al. and Harold V. Hildeprecht dated July 18, 1978. National Patent No. 4,100,988 minimizes the load moment around the center of gravity of the vehicle. Place the lift mast behind the vehicle's front wheels to maintain it and maximize the vehicle's load-carrying capacity. Mounting for placement close to the front of the frame between teachings the device.

None of the above patents provide a mounting device for connecting a high visibility mast to a vehicle. I haven't. A high-visibility mast is a mast that is located adjacent to the driver's line of sight. Those with substantially no obstructions between the inner aplies, and placed tightly adjacent to the external aliquots and at a considerable distance from each other. It is something that exists. The reason that none of the above patents use high visibility masts is because The available space between the vehicle wheels and the design and construction of the mast itself are based on the above references. This is because the disclosed installation does not allow use of the device. In addition, the above patent Installation and removal of equipment is difficult due to the limited amount of space available. It cannot be easily used for any purpose.

To enable the lift mast to be connected to or separated from the vehicle. In order to is necessary. Conventional mounting means that the device is either mounted on a bin or on a shaft in its place. The installation does not provide a device that can be successfully removed. This is the main As a result, the lift jack on the high-visibility mast is usually open in front of the This is because they are invading a space that was previously possible. Izu of the above cited example In this case, the lift jack is placed closely adjacent to the applied and the pair is spaced apart. Between the applied.

The installation is not designed to remove the shaft in locations that are not centered on the .

Therefore, the installation should keep the range of the equipment to a minimum and avoid any interference with the vehicle and/or lift mast. Pivot for high visibility masts to facilitate removal of mast pivot shaft from connection It is necessary to provide a mounting device.

溌”LΦH In one aspect of the invention, a lift mast is mounted on a vehicle having a frame member. Equipment is provided for mounting. having first and second sides opposite to each other a support flange having a first side thereof connected to a frame member of the vehicle; a spindle having a first end and a spindle axis; A first end of the support flange may be connected to a second side of the support flange. No. first and second spaced end portions, first and second end portions, and said first and second end portions; A shaft is provided having a longitudinal axis extending therebetween. The first device is the lift mast A first end portion of the pride guide member is pivotally connected to the shaft, and a second device is pivotally connected to the shaft. 1 is connected to the support flange, and the shaft is aligned with the spindle axis. a third device for slidably guiding axial movement in a qualitatively parallel direction; a second end portion of the shaft is connected to a frame member of the vehicle; and the shaft is connected to the support. in a direction substantially parallel to the spindle axis relative to the first side of the flange; Slidable to prevent axial movement.

In another aspect of the invention, a work vehicle has opposite first and second portions. a lift mass having a pair of spaced apart applied guide members; first and second support flanges having opposite first and second sides; It has a A first side of the first support flange is at a first end of the frame member. a first side of said second support flange is connected to a first side of said frame member; It is connected to the end portion of 2. each having a spindle axis and a first end; 1 and 2 spindles are connected at their first ends to said 1st and 2nd support fins. each connected to a second side of the lunge. each having first and second spacing ends; and a first and second spacing end and a bed extending between said first and second ends. First and second shafts having shafts are provided. The first device is the applied section. a first end portion of one of the applied members to said first axis and of the other applied member. A first end portion is pivotally connected to the second shaft. The first and second support flanges each has an opening opening in the first side surface and a first end of the first shaft. a portion disposed within an opening of the first support flange and facing a surface of the first flange; and a first end portion of the second shaft is slidably engaged with the second support flange. It is disposed within the opening and slidably engages the surface of the second flange. Each an opening opening to the first and second spaced side faces and the first and second spaced side faces; First and second support brackets are provided having first and second support brackets. The above opening is one a second end portion of the first shaft is formed by a surface of the first support bracket; a second end portion of the second shaft supportingly engages an opening forming surface of the second shaft; It is supportively engaged with the opening-forming surface of the holding bracket. The first stator is the first stator. A second end portion of the shaft of is connected to the first support plug and the second stator is connected to the first support plug. A second end portion of the second shaft is connected to the second support bracket. the above First and second stators connect the first and second shafts to the first and second support flanges. each from movement along the axis of the shaft relative to the engine.

An example method of the present invention includes the steps of supporting a lift mast assembly and supporting a first stator. removing the second stator from the connection with the first shaft and the first support bracket; removing the pressurized fluid from the connection with the second shaft and the second support bracket; connecting a fluid flow source to a fitting attached to the first shaft; directing a flow of processing fluid into an opening disposed within a first support flange to direct said first axis; push the first end portion of the first shaft toward the first support bracket. Consists of being released from placement within the opening and mating with the surface forming the opening. moving the device in a direction substantially along the axis of the first shaft; connecting the pressurized fluid flow source to a second fitting attached to the second shaft; directing a pressurized fluid flow from said fluid flow source to an opening disposed within a second support flange; and push the second shaft towards the second support bracket. the first end portion of the shaft is released from placement within the opening of the second support flange; to the axis of said second shaft to a device comprising engagement with a surface forming said opening; moving the lift mast in a substantially parallel direction and removing the lift mast from the work vehicle; and a step of

Sarasato Dandanmu the next morning Figure 1 shows the front part of the frame member, the lift apply of the lift mast assembly, The parts of the drive axle assembly and the lift mast assembly are pivotally attached to the vehicle frame. FIG. 2 is a partial perspective view of an embodiment of the present invention showing the device; Figure 2 is partially cut out for clarity, lift mass) IJI three-dimensional, and installation is by equipment. and a portion of the frame member, including the first support flange and a portion of the spindle. 2 is a partially enlarged top view of FIG. 1 showing details, Figure 3 shows the installation of the equipment, one of the first lift masts, the first support 2 is a side view taken along the line ■-■ of FIG. 2 showing the engine and frame members in detail; FIG. 4 shows the mounting of the device in the first and second passages in the first and second shafts, respectively. , the first and second fluid connections, and the first and second axes in a separated position shown in phantom lines. Fluid actuation connectable to pipe fittings to provide pressurized fluid flow to push towards FIG. 2 is a partially exploded sectional view taken along the rV-rV line in FIG. 1 showing the device.

The best condition for spending the day Referring to the drawings, particularly FIGS. 1 and 2, the work vehicle 10 has a frame. A member 12 and a lift mass assembly 14 pivotally connected to the frame member. Made by Commercial vehicle 10 is preferably a lift truck. However, on the lift mast assembly Other vehicles to which bodies can be attached also fall within this field of use. You should think about it. The lift mast assembly 14 is of a high visibility type, with first and It has a second pair of spaced apart applied guide members 16.18. About Figure 2 To illustrate, the lift mast assembly 14 includes a pair of spaced lift gears 20. It has a lever 22 (only one shown), and a pair of forks 24 (only one shown). vinegar.

The second pair of applied guide members 18 is similar to the first pair of applied guide members. mounted by rollers 26 above and between the first pair of applied guides; The member 16 can be moved up and down. The fork 24 can be The carriage 20 is attached in the desired manner to the second pair of spaced applicators. a second pair of applied guide members connected by rollers 28 to the applied guide members; 18 can be moved up and down.

In order to place the lift mast assembly 14 in the high visibility classification, a second pair of applicators is required. The viewing window for the vehicle driver formed by the space between the guide members 18 is , shall be substantially free of obstruction by other mast components; The lift jack 22 is then substantially positioned behind the applied guide member 16.18. In addition, the vehicle driver's line of sight is not obstructed by the lift jack 22. It is located in no place.

Lift jacks 22 can be mounted on any suitable and customary operatively connected in such a manner. Due to the telescopic movement of the lift jack 22, The second pair of applids 18 are caused to move up and down relative to the first pair of applids 16. It will be done. A lift chain sheave device (not shown) connects the lift mast in the customary manner. operatively connected to the assembly and to the carriage 20 and the first pair of apply 16. ing. The above-mentioned telescoping movement of the lift jack 22 also allows the above-mentioned chain to - A lifting movement of the carriage 20 takes place in the customary manner via the sheeping device. The above check The head/sheep device, fluid continuity hoses, brackets, etc. (all not shown) are as described above. Must be spaced from the lift mast window and out of the vehicle operator's line of sight. be. Therefore, the above-mentioned chain sheave device, fluid communication hose, bracket, etc. is placed in the immediate vicinity adjacent to the first and second pair of applids 18.16. It is necessary to

As shown in FIG. serves as a connection body and a spacing body for the ing. Place the lift jack 22 behind the applied guide member 16.18. When the frame member 12 and the applied part of the lift mast assembly 14 are The amount of open and available space served is reduced.

The attachment is such that the device 32 pivotally couples the lift mast assembly 14 to the frame member 12. It has become. Specifically, the mounting device 32 is attached to the frame member 12 and the vehicle wheel 3. frame each of the first pair of applied guide members 16 at a location proximately adjacent to the frame. Pivotally attached to member 12. Each applied guide member of the first pair is end of the working vehicle (frame member 12) and one of each of the pair of vehicle wheels 34. Being in close proximity to the area is extremely important. A riff from the front of this vehicle. The distance to the Tommast assembly 14 determines the load moment. And the second pair The distance between the applied guide members 18 is determined by the distance between the vehicle wheels 34. Although limited, it determines the maximum amount of visibility for the vehicle operator. mast set Placing the solid body 14 in front of, above, or outside the wheels 34 improves the maneuverability of the vehicle. This is a serious concern as it has a negative impact on driving and driving.

As shown in FIG. 2, the mounting device 32 has first and second sides 38.40. a first support flange 36 having first and second sides 44,46; The first side 38 of the first support flange has a support flange 42 of the first side 44 of the second support flange is connected to the first end 48 of the member 12; The second end 50 of the frame member 12 is connected to the second end 50 of the frame member 12 . Preferably a frame member 12 is a rectangular box-like structure, the first and second ends of which are adjacent to both sides of the vehicle 10. It's in a place where you can. The frame member 12 accommodates the differential 52 within the box-like structure. It is suitable for installation in. The first jack shaft 54 is from the channel 52 through the first end 48 of the frame member as well as the support flange. extending through an opening 56 disposed within the hole in the first and second sides 38.40 of the There is. Similarly, the second jack shaft 58 is connected to the frame from the differential 52. through the second end 50 of the arm member 12 and into the second support flange 42. through openings (not shown) located in holes in the first and second sides 44.46. It extends.

Referring to FIG. 2, the first wheel drive device 60 has a ring gear 62; The gear engages a pinion gear mounted on the first jack shaft 54.

A ring gear 62 is rotatably attached to the first spindle and is connected to the first spindle. the first support flange 3 in any suitable manner, such as by a stator 68. 6 is fixed to the second side surface 40 of 6. A pair of anti-friction bearings 70 are attached to the ring gear 6. 2 is rotatably supported in the customary manner on a first spindle 66. pinion The gear 64 transmits rotational motion and power from the first jack shaft 54 to the ring gear 62. do. The cover 72 may be provided in any suitable manner, such as by a threaded stator 74. and is fixed to the second side surface 40 of the first support flange 36 .

The cover overlies the ring gear 62 and is connected to the cover 72 and the first support flap. A seal 76 is provided to prevent lubricant from leaking from the area between the have. A brake drum 78 of conventional design is attached to the ring gear 62 with it. It is fixed so that it can rotate. Wheels 34 are connected to brake drums 78 in the customary manner. is fixed. A second wheel drive (not shown) of the same configuration is connected to the second support flap. a pair of wheels attached to the second side 46 of the engine 42 and extending from the second jack shaft 58; The rotary motion is transmitted to the other wheel of 34.

The second spindle (FIG. 4) is connected to the threaded stator 6 in any suitable manner, e.g. 8 to the second side 46 of the second support flange 42 . 1st time and second support flanges 36 and 42 respectively support first and second spindles 66. The attachment with and 80 has an annular flange 81 for sealing. first spindo The first end surface 82 of the ring 66 is located at the annular flange 81 of the first support flange 36. The second side 40 is engaged with and connected thereto by a stator 68 in a tight sealing manner. It is continued. Similarly, the first end surface 84 of the second spindle 80 has an annular flange. sealingly engages the second side 46 of the second support flange 42 at 81; It is connected thereto by a stator 68. first and second spindles 66 and 80 each have an axis 86 about which the wheels 34 rotate. The axis 86 is vertical The direction is transverse to the vehicle axis 88, preferably perpendicular to the axis 88.

1 and 2, the first and second spaced end portions 92, 94 and first and second ends 96.98 and a longitudinal section extending between said first and second ends. A first shaft 90 having an axis 100 is provided and is connected to one of the first pair of applied 16. A first end portion 102 of the frame member 12 is rotatably connected to the frame member 12 .

Similarly, the first and second spacing end portions 106,108 and the first and second spacing ends 110.112 and a longitudinal axis 1 extending between the first and second ends 110.112 14 is provided, the other of said first pair of applied 16 The first end portion 116 of the applied member is rotatably connected to the frame member 12. Ru.

the first applied end portion 102 to the first shaft 90 and the first applied end portion 116 to the first shaft 90; First means 118 are provided for rotatably connecting to the second shaft 104. . Said first means preferably comprises first and second blocks 120, 122; each of which has first and second spaced sides 124,126 and said first and second sides. It has a hole 128 that opens on the surface. The first block 120 has one end 129 The second block 122 is rigidly fixed to the end portion 102 of the first applied 129 is secured to the first end portion 116 of the other applied guide member 16 of the first pair. It is fixed.

The first shaft 90 is disposed within the hole 128 of the first block 120 and thus The first and second ends 96.98 of the shaft 90 are connected to the first and second sides of the first block. 124 and 126 respectively. Similarly, the second shaft 104 the first and second ends 110.1 of the second shaft; 12 extends over the first and second sides 124 and 126 of the second block 122, respectively. It's getting longer and longer. Preferably, the bearing 130 (FIGS. 2 and 4) is Located within holes 128 in each of blocks 122,124. The bearing 130 is the first and the second shaft 90.104, and the first and second blocks 120.122 or or without wearing out the first and second shafts 90.104. It allows rotation about the axis 100, 104 of the shaft. Anti-friction shaft Hole 128 and shaft 90.104 may be heat treated so that bridge 130 is not required. .

As shown in FIG. 4, a second means 132 is provided and extends from the first end of the first shaft 92 to the first support flange 36 and the first shaft 90 along its axis 100. axially slidably in a direction substantially parallel to the axis 86 of the first spindle 66. and guide the first end portion 106 of the second shaft 104 to the second support frame. flange 42 and connects the second shaft 104 along its axis 114 to a second spindle. 80 for slidable movement in a direction substantially parallel to axis 86 of wheel 80. Ru. Preferably, the second means 132 includes a first support flange 36 within the first support flange 36. a first aperture located at a predetermined radial location spaced from axis 86 of spindle 66; 134 and within the second support flange 42 the axis 8 of the second spindle 80. a second opening 136 disposed a predetermined radial distance spaced from 6; Preferably, the first and second openings 134 , 136 are located at the front surface of the frame member 12 . is located between the frame member 12 and the lift mast assembly 14. first opening The mouth portion 134 preferably extends through the first support flange 36 and into the first and second portions thereof. It opens on the side of 2. Similarly, second opening 136 extends through second support flange 42. disposed therethrough and on the first and second sides 44.46 of the second support flange 42; It's open. Each of the first and second openings 134 , 136 has a cylindrical surface 138 . Therefore, it is formed. The cylindrical surface 138 of the first opening 134 is connected to the first axis 90 . supporting a first end portion 92 and preferably connecting said first end portion to a spindle shaft; slidingly guided for axial movement relative to line 86; Similarly, the second opening A cylindrical surface 138 of portion 136 engages first end portion 106 of second shaft 104 and 2 for sliding axial movement in a direction parallel to the axis 86. Ru. The first end portion 92 of the first shaft has a cylindrical outer surface having a diameter of a predetermined size. However, the cylindrical surface 138 of the first opening 134 is connected to the first end portion 92 of the first shaft 90. Similarly, the second opening 13 has a diameter equal to or larger than the diameter The diameter of the cylindrical surface 138 forming the second axis 10 is of a predetermined size. The diameter of the cylindrical outer surface of the first end portion 106 of 4 is equal to the size of the second opening 136. or smaller diameter. First and second openings 13 The respective fits between 4.136 and the first and second shafts 90.104 are are important to the operation and life of the device 32, and the first and second axes 90.1 04 and lift mast assembly 14ε.

A second end portion 94 of the first shaft 90 is connected to the vehicle frame member 12 and the second end portion 94 of the first shaft 90 is connected to the vehicle frame member 12. The shaft 90 is aligned with the first support flange in a direction substantially parallel to the spindle axis 86. the first side 38 of the engine to retain it from axial movement; and a second end portion 10 of second shaft 104 to vehicle frame member 12; axis 104 of the second support frame in a direction substantially parallel to the spindle axis 86. Slidable relative to first side 44 of lunge 42 to retain from axial movement Third means 140 are provided for this purpose. Preferably, the third means includes each first and second support brackets each having first and second spaced apart sides 146,148; 142.144, and the first and second portions of each of the support brackets 142.144. 1 and 3, including an opening 150 opening into the spaced sides 146, 148 of FIGS. As shown, the opening 150 is defined by a cylindrical surface 152. As shown in FIG. opening The portion 150 is open to the first and second sides of the support bracket 142.144. In addition, the upper end portions 152 of the first and second support brackets 142,144 It is also open to the public. The second end portion 94 of the first shaft 90 is attached to the first support bracket. It is disposed within opening 150 and in contact with surface 152 thereof. Similarly, the second axis 1 The second end portion 108 of the 04 is disposed within the opening 150 of the second support bracket 144. 152 so that it can be mated with the surface 152. The second end portion 94.108 is cylindrical embraced by surface 152 and supported by the first and second brackets. Therefore, the axes 100 and 114 of the first and second axes 90.104 are It is parallel to the axis 86 of the second spindles 66 and 80. Therefore, the first The rotational movement of the lift mast about the first and second axes 90.104 It is not subject to undesirable loads that would otherwise occur if the axial alignment of the

As shown in FIG. 4, the third means 140 also connects the second end portion 9 of the first shaft 4 to the first support bracket, and a second end of the second shaft 104. including means 156 for securing portion 108 to second support bracket 144; There is. Preferably, the securing means 156 is radially within the second end portion 94 of the first shaft. a threaded opening in said first support bracket disposed within a hole 160 extending in said first support bracket; a first stator 158 that threadably engages the second end of the second shaft 104; a second support bracket disposed in a radially extending direction 108; The second stator 162 has a second stator 162 that screws into engagement with a threaded shaft disposed within the stator 144. vinegar. Each of the first and second axes 90.104 is connected to the first and second stator 158.1. 62 has a flat cutout surface 166 against which the first and second stators are pressed. 15B, 162, the first and second axes 90.104 are aligned with the axis 100.114. secured against movement relative to the first and second support flanges 36,42 respectively. Hold and prevent. First support bracket 142 for attaching first shaft 90 The distance between the first side 146 of and the f-th side 38 of the first support flange 36 is It needs to be smaller than the length of the first shaft 90. Also, this distance is the distance between sides 124 and 126 so that cross 120 can straddle It also needs to be large. For the same reason, the second support bracket/ The distance between the first side surface 146 of the first support flange 42 and the first side surface 44 of the second support flange 42 is It is necessary to be smaller than the length of the shaft 104 of No. 2 and larger than the width of the block 122. It is.

For installation, the lift mast assembly is attached to the front of the vehicle 10 using the device 32. proximate the arm 12 and proximate the first and second support flanges 38,42. Using lift mast assemblies that can be mounted side by side and therefore have a high visibility Can be done.

The first block 120 is connected to the first support flange 36 and the first support bracket 142. The second block 122 is disposed between the second support flange 42 and the second block 122. The first support bracket 144 is located between the first and second support brackets 144 for removal. and the second axis 90.104 is extremely difficult to access. The above first and second The shaft is adapted to be removed from engagement with the first and second openings 134 and 136, respectively. Means 168 are provided to facilitate this. Means 168 is a 1 and the second side 40 of the first flange 36 and the second axis 10 4 and the second side 46 of the second support flange 42. passing a pressurized fluid stream into the first and second openings 134, 136 at .

Passage means 168 preferably includes a first passage 170 disposed within first shaft 90 , and a hole in the first end 96 and a location 171 spaced from the first end 96 a hole in the second shaft 104 and a second passageway disposed in the second shaft 104 and the first end. 110 and has a hole at a location 173 spaced from the first end 110 . Each a pair of fittings 174.1 having an inlet end portion 178 and an outlet end portion 180; 76 is adapted to pass fluid from the inlet end portion 178 to the outlet end portion 180. ing. The outlet end portion 178 of the first fitting is connected to the first shaft 90 at the first end 96 . The outlet end of the second fitting 176 is connected at a hole location 171 spaced from the outlet end of the second fitting 176. Portion 180 is attached to second shaft 104 at a distance from first end 110 of second shaft 104 . The connection is made at the location 173 of the hole.

Fittings 174 and 176 connect to a pressurized fluid flow source 182, such as a gear pump, piston, etc. Pressurized fluid sent from a pump, valve pump, grease gun, etc. is routed through the passage 170. and 172, respectively. Fluid flow source 182 is Pressurized fluid flow is routed through conduit 184 and connector to first and second fittings 174.1. 76, the connector 186 connects the first and second fittings 1 74.176 can be attached to either inlet end portion 178 and the inwardly biased It is held there by a pair of jaws. The first of the first spindle 66 end 82 covers first opening 134 of first support flange 36 . Spicy A tight seal is formed between the first end 82 of the handle and the second side 40 of the support flange. , the fluid pressure at the first end 96 of the pin or shaft 90 increases. Can be done. Similarly, the first end 84 and second side 46 of the second spindle 80 Since there is a tight seal between the Power can be increased. Sealing the pressurized fluid flow at first ends 96 and 110 When introduced into the region, the first and second axes 90.104 are aligned with their axes 100.114 towards each other along and along the first and second support brackets)'42.14 They are each moved towards 4.

Possibility of business advantage Referring to the drawings, especially FIGS. 1, 2, and 3, the mounting W32 is a lift. A unique, simple and efficient way to pivot the Thomast assembly 14 to the frame 12 of the axle 10 provide a method. First and second support flanges and first and second openings 1 The cylindrical surface 13B of 34.136 provides support and support for the first and second shafts 90, 104. High visibility masts and improved visibility for vehicle operators It becomes possible to use first and second support brackets 142, 144 and The fixing means 156 connects the first and second shafts 90.104 to the first and second support flanges 3. 6.42 and the second of the first and second axes 90.104. Facilitates release for removal of end portion 94.108.

A method is provided for removing lift mast assembly 14 from work vehicle 10. destination First, lift the above lift mast assembly using an overhead hoist, etc., and lift it up and down. The first fixture is then supported in any suitable manner, such as with a wrench. Remove the stator 158 from the connection of the first shaft 90 to the first support bracket 142. then remove the second stator 162 from the second support bracket 144. The pressurized fluid flow 'a 182 is unscrewed from the connection of the second shaft 104 to the first Connects to a first fitting 174 attached to shaft 90 . Addition from fluid flow source 182 directing the flow of industrial fluid to an opening 134 located within the first support flange 36 (valve (by opening the pump, activating the pump 182, etc.). This pressurized fluid is connected to the first shaft 90 toward the first support bracket 142 and the first shaft of the first shaft 90 . End portion 92 is released from placement within first opening 134 and from engagement with surface 138. The fluid flow source 182 is then moved along the axis 100 to the configured device. It connects to a second pipe joint 176 attached to the second shaft 104. Next, pressurized flow The fluid flow is transferred from the fluid flow 5182 to a second support flange 42 disposed within the second support flange 42 . This fluid pressure pushes the second shaft 104 into the second support bracket. towards the socket 144 and the first end portion 106 of the second shaft 104 consisting of being released from placement within the aperture 136 and engaging a surface 138 of the aperture 136; in a direction substantially along axis 114.

The lift mast assembly 14 is then placed on the work vehicle, such as by a hoist. Remove from shaft 10.

Passage means 168 connects the first and second supports using first and second support flanges 36.42. This makes it possible to support two axes 90.104. This is the first and second This is possible because of the unique method described above for removing the shaft 90.104. Up The first and second axes are connected to the frame member 12, the lift mast assemblage 16, 18 and and vehicle wheels 34, without this unique removal method, the Unable to find suitable space to remove the first and second shafts.

Therefore, installation of the device 32 on a vehicle that is smaller and/or narrower than usual is recommended. At the same time, the lift mast is attached to the frame 1 of the work vehicle 10. 2 and wheels 34, it is possible to maximize the cargo capacity of the vehicle. Wear.

The fixing means 156 securely holds the first and second shafts 90.104 and eliminating the possibility of inadvertent loosening of the shaft 90.104.

Other aspects, objects, and advantages of the invention will emerge from a consideration of the drawings, disclosure, and appended claims. can be obtained.

international search report In+ars++naa-^1 draw 0 electric-・in-'0PCT/US8610OE1 4’ANNEX To &’HE INTEi’LNATrONAL 5EAR C! (!'I 三?ORT 0NFR-A-1179620None CB-A-149147309/11/77 None

Claims (1)

[Claims] 1. an attachment device (32) for pivotally attaching a lift mast assembly (14) to an axle (10) having a frame member (12) on opposite first and second sides; a support flange (36) having surfaces (38, 40) and connected to the frame member (12) at the first side; a first end (82) and a spindle shaft (86); a spindle (66) connected at the first end (82) to the second side (40) of the support flange; a shaft (90) having first and second ends (96, 98) and a longitudinal axis (100) extending between said first and second ends (96, 98); first means (118) for pivotally connecting a guide member (16) to said shaft (90) and connecting a first end portion (92) of said shaft (90) to said support flange (36); and above spindo a second means (132) for guiding said shaft (90) for slidable axial movement in a direction substantially parallel to said shaft (86); edge (94) to the frame member (12), and the shaft (90) to the shaft (90). third means (140) for retaining from slidable axial movement of the support flange (36) relative to the first side (38) in the direction substantially parallel to the handle axis (86); An attachment device (32) consisting of: 2. A second means (132) is disposed within the support flange (36) and said support flange (36). an opening (134) opening in the first side (38) of the lunge; The mouth (134) is defined by a surface (138), and the first end portion (92) of the shaft is disposed within said opening (134) and slidably engages said surface (138). An attachment device (32) according to claim 1, comprising: 3. A surface (138) of the opening (134) defines a cylindrical hole having a diameter of a predetermined size, and a first end portion (92) of the shaft has a cylindrical outer surface and a diameter of a predetermined size. A mounting device according to claim 2, wherein the diameter of the hole is at least equal in size to the outside diameter of the first end portion (92) of the shaft. (32). 4. An opening (134) opens into the second side (40) of the support flange (36), and a first end (82) of the spindle opens into the second side (40) of said flange. An attachment device (32) according to claim 2, which covers an opening (134) in the support flange. 5. means (168) for passing pressurized fluid into the opening (134) at a location between the first end (96) of the shaft 90 and the second side (40) of the flange; 3. The attachment device (32) of claim 2, wherein said fluid is adapted to push said shaft out of said opening in a direction substantially along an axis (100) of said shaft. 6. Passage means (168) are arranged in the shaft (90) and open to the first end (96) of said shaft and a passage ( 170). An attachment device (32) according to claim 5, comprising: 170). 7. a pipe fitting (174) having an inlet end portion (178) and an outlet end portion (180) and adapted to pass fluid from said inlet end portion (178) to said outlet end portion (180); and wherein said outlet end portion (180) is connected to said shaft (90) at an opening spaced from said first end (96) of the shaft and opens into a passageway (170). Attachment device (32) according to item 6. 8. The third means (140) comprises a support bracket (140) having first and second spaced side surfaces (146, 148) and an opening (150) opening into said first and second side surfaces (146, 148). 142), wherein the opening (150) of the support placket is formed by a surface (152). the support placket surface (152) engages the second end portion (152) of the shaft (90), and the support placket surface (152) engages the first side (152) of the support flange (36) 44) and an opening forming a surface (152) of said support bracket (142) and a surface (138) of said support flange (36). It is in a position to support the shaft (90), so that the axis (100) of the shaft is aligned with the spindle. the second end portion (94) of said shaft (90) to said support bracket (142); 3. An attachment device (32) according to claim 2, comprising fastening means (156) for securing the device. 9. A support placket (142) has an upper end portion (154) extending between first and second placket sides (146, 148), and an opening (150) in the support placket extends into the upper end portion (154). the shaft (90) having an opening (160) disposed in and through the second end portion (94) of the shaft; The fixing means (156) includes a stator (158) disposed within the opening (160) at the second end portion (94) of the shaft and coupled to the support plate. The mounting device according to claim 8, which is screwed and connected to the racket (142). Place (32). 10. A first means (118) is arranged between the first and second spaced sides (124, 126) and and a block (120) having the first and second side surfaces (124, 126); and a hole (128) opening in the first and second side surfaces (124, 126), and the block (120) has a first end portion of the upright guide member (16). the shaft (90) is placed in the hole (128) of the block (120), and the block (120) has a supporting frame on the shaft (90). 9. The attachment device (32) of claim 8, wherein the attachment device (32) is located between the flange (36) and the support placket (142). 11. The first means (118) comprises a bearing (130) disposed within the bore (128) of the block (120), and the shaft (90) is rotatably disposed within said bearing (130). An attachment device (32) according to scope 10. 12. a frame member (12) having opposed first and second end portions (48, 50); and a lift mast assembly (14) having a first pair of spaced apart upright guide members (16). , the upright guide members each have first and second end portions (102, 116), each having an opposite first side (38, 44) and a second side ( first and second support flanges (36, 42) having a first support flange (36, 46), wherein a first side (38) of said first support flange (36) a first end portion (48), a first side (44) of said second support flange being connected to a second end portion (50) of said frame member (12); first and second spindles (66, 80) each having a spindle axis (86) and a first end (82, 84), a first end (82) of said first spindle; is connected to a second side (40) of said first support flange (36), and a first end (84) of said second spindle (80) is connected to a second side (40) of said second support flange (42). a first end portion (92, 106) and a second end portion (98, 108), each spaced apart from one another; between the first end (96, 110) and the second end (98, 112), and the first end (96, 110) and the second end (98, 112); first and second axes (90, 104) having longitudinal axes (100, 114) extending; and a first end portion (102) of one of the upright members (16) of said first pair. a first shaft (90) for pivotally connecting a first end portion (116) of the other upright member (16) of the first pair to the second shaft (104); means (118), said first and second support flanges (36, 42) each having an opening (134, 136) opening in said first side (38, 44). and each of said openings (134, 136) is defined by a surface (138), and a first end portion (92) of said first shaft is defined by an opening in said first support flange (36). (134) the first end portion (106) of the second shaft being positioned and slidably engaged with the aperture surface (138) of the first flange (36); (42) in the opening (136) of the second support flange (42). slidingly engaged with a surface (138) of the mouth (136), each having first and second spaced sides (146, 148) and each having said first and second spaced sides (146, 148); first and second support plackets (142, 144) having openings (150) opening into spaced sides (146, 148), said openings (150) being defined by surfaces (152); , a second end portion (94) of said first shaft is in supportive engagement with an opening forming a surface (152) of said first support bracket (142), and said second end portion (94) of said first shaft a second end portion (108) of said second support plate; supportingly engages an aperture forming a face (152) of a racket (144); and a second stator (162) connecting the second end portion (108) of the second shaft to the second support placket (144). Preparation The first and second stators (158, 162) support the first and second shafts (90, 104) along the axes (100, 114). centre Work vehicle (10) holding from movement relative to lunge (142, 144). 13. a first passageway (170) disposed within the first shaft (90) and opening to the first end (96) of said first shaft (90); placed on top a second passageway (172) opening to the first end (110) of the second shaft (104), the first passageway (170) directing pressurized fluid flow to the first shaft; (90) through a first end (96) of the first support flange (36) to an opening (134) in the first support flange (36); Work vehicle according to claim 12, adapted for passage through the first end (110) of the second shaft (104) into the opening (136) in the second support flange (42). (10). 14. a pressurized fluid flow source (182); and a pressurized fluid flow source for passing pressurized fluid from the fluid flow source (182) to openings (134, 136) in the first and second support flanges (36, 42). means (168), the first and second axes (90, 104) having a force applied to the first ends (96, 110) of the first and second axes (90, 104); 13. The work vehicle (10) of claim 12, wherein the work vehicle (10) is pushed in a direction toward the first and second support plackets (142, 144), respectively, in response to a pressurized fluid. 15. A passage means (168) is disposed within the first shaft (90) and at a first end (96) of said first shaft (90) and at a first end (96) of said first shaft (90). a first passageway (170) opening at a spaced apart location (171) from the end (96); a second passageway (172) opening into the portion (110) and at a location (173) spaced from the first end (110) of said second shaft (104); an inlet end portion (178); an opening having an outlet end portion (180) and spaced from a first end (96) of the first shaft (90) in the first shaft (90) in the outlet end portion (180); a first fitting (174) having an inlet end portion (178) and an outlet end portion (180) connected to the second shaft (108) at the outlet end portion (180); ) a second fitting (176) connected to the second shaft (104) at an opening spaced from the first end (110); 176) connects a pressurized fluid flow source (182) to said shaft (90, 104) and passes liquid from said fluid flow source (182) to said first and second passageways (170, 172). A working vehicle (10) according to claim 14, wherein: 16. A first means (118) includes first and second side surfaces (124, 126), a hole (128) opening in said first and second side surfaces (124, 126), and an end (129). The first block (120) has a first block (120) at the end (129). and is connected to a first end portion (102) of one of the uprights (14); The first block (120) includes a bearing (130) disposed on the first shaft (90) between a first flange (36) and a first support bracket (142). a second block (122) disposed in the direction and further including a second block (122) having first and second sides (120, 122); The second block further has a hole (128) opening into the second block, first and second side surfaces (120, 122), and an end (129), The lock (122) is connected at said end (129) to the first end portion (116) of the other upright (14) and is further fitted into the hole (128) of said second block (122). a second bearing (130) disposed between the second block (122) and the second shaft (104); and the second block has a second support flange on the second shaft (104). 13. The work vehicle (10) of claim 12, wherein the work vehicle (10) is axially disposed between the first support bracket (42) and the second support placket (144). 17. supporting the lift mast assembly (14); removing the first stator (158) from connection with the first shaft (90) and the first support bracket (142); and securing the second stator. (162) to the second shaft (104) and the second support plaque. connecting a pressurized fluid flow source (182) to a first fitting (174) attached to said first shaft (90); Directing a pressurized fluid flow from a body fluid source (182) into an opening (134) disposed within the first support flange (36) and forcing said first shaft (90) to release said first support. P In a direction substantially along the axis (100) of the first shaft (90) toward the racket (142), the first end portion (92) of the first shaft (90) 1 34) and into a position where it is disengaged from engagement with the surface (138) forming the opening (134); a second pipe fitting (176) mounted on the second shaft (104) and directing pressurized fluid flow from the fluid flow source (182) into the second support flange (42); opening (136) and pushing said second shaft (104) substantially along the axis (104) of said second shaft (104) toward said second support bracket (144). in the direction, the first end portion (106) of said second shaft (104) is released from placement within the opening (136) of said second support flange (42) and and removing the lift mast assembly (14) from the work vehicle (10). Method for separating solid (14).