JP2015098248A - Trailer landing gear apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an apparatus for rotating a drive shaft of a landing gear or lifting gear of a land vehicle.SOLUTION: The trailer landing gear apparatus is used for rotating a drive shaft of a landing gear or lifting gear of a land vehicle. There is a drive shaft connector attachable to a trailer drive shaft. A drive gear apparatus is mounted on a rotary drive apparatus and a drive apparatus connector is attached to a drive socket of the drive gear apparatus. The drive shaft is rotated by positioning the drive apparatus connector on a connector shaft of the drive shaft connector. The rotary drive apparatus is then operated to rotate the gear elements of the drive gear apparatus to rotate the drive shaft connector. The drive shaft connector may also have a hand crank handle attached to a sleeve for alternative use in drive shaft rotation.

Description

  The present invention relates to an apparatus and an apparatus for use in raising or lowering a leg or a support of a structure by connecting or engaging a drive shaft of the structure such as a landing gear of a trailer, a lifting device, and a dolly.

  The new device uses a combination of drive shaft connector and drive gear device to engage the rotary drive device to rotate the drive shaft or landing gear drive structure.

  Various trailer devices, equipment and methods are known for use in conjunction with, or for engaging, a trailer landing gear. The apparatus includes a drive unit fixture, the fixture having one or more shafts and a gear assembly or gearbox to the drive shaft of the landing gear. According to this type of drive unit, the handwheel handle can be attached to one shaft end, or the rotary motor can be attached to the second shaft end to rotate the drive shaft of the landing gear. In this type of system, it is necessary to add a drive unit to each trailer on which the landing gear operation method is to be performed, and it is necessary to store the steering wheel separately from the drive unit.

  Other equipment may include a simple adapter that attaches to a rotary drive such as a portable drill motor. This type of adapter has one end of a connecting means for engaging the trailer landing gear drive shaft or gear drive mechanism in the same way that a handwheel handle is used to raise or lower a leg or support. Have. In this type of adapter, the drive rotator must usually be specially designed to provide the appropriate torque force in order to operate the trailer landing gear. Also, the handwheel handle must be removed to allow use of the drive rotation device.

  The present invention is directed to an apparatus for rotating a landing gear of a land vehicle or a drive shaft of a lifting device. There are drive shaft connectors that can be attached to the drive shaft of the trailer. The drive gear device is attached to the rotary drive device, and the drive device connector is attached to the drive socket of the drive gear device. The drive shaft is rotated by positioning the drive device connector on the connector shaft of the drive shaft connector. Next, the rotational drive device is actuated to rotate the gear element of the drive gear device to rotate the drive shaft connector. The drive shaft connector may also have a handwheel handle attached to the sleeve for alternative use for rotation of the drive shaft.

  These and other features, aspects, and advantages of the present invention can be better understood with reference to the following drawings, detailed description, and claims.

The side view which shows the landing gear apparatus which concerns on one Embodiment of this invention, and has a drive device provided with the trailer drive shaft engaged with the drive shaft of a trailer. The figure which shows the drive end of the landing gear apparatus which concerns on one Embodiment of this invention and the drive device was engaged. The disassembled assembly side view which shows the drive gear apparatus and rotation drive device which concern on one Embodiment of this invention. The disassembled assembly side view which shows the drive gear apparatus and rotation drive device which concern on one Embodiment of this invention. The disassembled assembly side view which shows the drive shaft connector which concerns on one Embodiment of this invention. The side view which shows the drive shaft connector which concerns on one Embodiment of this invention. The side view which shows the rotational drive apparatus which concerns on one Embodiment of this invention. The figure which shows the drive end of the rotational drive apparatus which concerns on one Embodiment of this invention. The side view which shows the rotational drive apparatus which concerns on one Embodiment of this invention. The side view which concerns on one Embodiment of this invention and shows the rotational drive apparatus cut away from the drive shaft connector. 1 is a side view showing a rotary drive device connected to a drive shaft connector according to an embodiment of the present invention. 1 is a side view showing a handwheel handle positioned on a drive shaft connector for rotating a drive shaft according to an embodiment of the present invention. FIG.

  The following detailed description represents the best presently planned embodiment for carrying out the invention. This description is not to be construed in a limiting sense, but is merely configured to illustrate the general principles of the invention.

  1 to 6, the trailer landing gear device 10 includes a drive shaft connector 12 that can be attached to a trailer drive shaft 200 or a gear box (not shown) using a bolt 60 and a nut 62 of a trailer landing gear mechanism. Have The drive gear device 14 is attached to or engaged with the rotary drive device 202, and the drive device connector 16 is attached to the drive socket 18 of the drive gear device 14. To rotate the drive shaft 200, the drive connector 16 is positioned on the connector shaft 20 of the drive shaft connector 12, as best shown in FIGS. Next, the rotary drive 202 is operated to rotate the elements of the drive gear device 14 to rotate the engaged drive device connector 16 and drive shaft connector 12 to rotate the landing gear drive shaft 200. . There may be a speed controller 142 and a drive switch 144 to activate the device 202.

  The drive shaft connector 12 has a generally cylindrical connector socket 22 with an open end 24 that accommodates the trailer landing gear drive shaft 200 in the gap 26. The connector shaft 20 is attached to the closed end 28 of the connector socket 22 in the axial direction. The engagement sleeve 30 is slidably positioned on the connector shaft 20 and is held by a holding clip 32. A spring 34 is positioned about the connector shaft 20 between the closed end 28 and a flange 36 attached to the sleeve 30 to urge the sleeve 30 away from the closed end 28. The connector shaft 20 has a pin 40 that is mounted to extend laterally adjacent the closed end 28 and the sleeve 30 is adjacent to the closed end 28 and has two slots in the slotted end 38. 42. For example, when a force is applied to the sleeve 30 so as to compress the spring 34 in a state where the connector socket 22 is attached to the drive shaft 200 by the bolt 60, the narrow hole 42 is pushed beyond the pin 40, and the sleeve 30 is moved. When rotated, the entire drive shaft connector 12 is rotated and the drive shaft 200 is rotated. The sleeve 30 has two threaded holes 44 in the side wall 46 and attaches a shoulder screw 48 that is used to rotatably mount the handwheel handle 204. The connector shaft 20 has an annular groove 52 adjacent to the head end 50. The head end 50 has a polygonal shape or a spline shape on the circumferential surface 54. For example, a hexagonal shape similar to a bolt head portion or a nut shape may be used.

  The drive gear device 14 has a two-part housing 70 with a body 72 and a cover 74 attached by screws 116. There is a primary drive gear 76 for attachment to the drive shaft 18 and a secondary drive gear 78 for engagement with the rotation shaft 206 of the rotary drive device 202. A void 80 is formed in the housing 70, with a first portion 82 formed in the cover 74 and a second portion 84 formed in the body 72 as best illustrated in FIGS. 3 and 4. The primary gear 76 attaches the drive socket 18 to the first surface 90, the drive socket 18 and the primary gear 76 are positioned on the first portion 82 of the cover 74 with the drive socket 18, and the drive socket end 92 opens from the cover 74. Pass through 94 and extend outward. The drive bush 96 is positioned on the drive socket 18 and engages a bush recess 98 in the cover 74.

  The secondary drive gear 78 is held in the housing 80 by the gear pin 100, and the ends are in the pin recess 102 of the cover 74 and the pin recess 104 of the main body 72. The secondary gear 78 has a first gear element 106 and a second gear element 108 that is axially aligned with the first ear element 106 and is engaged by the gear teeth 110 of the primary gear 76 and the rotating shaft 206. The gear element 108 is engaged. The overall gear rotation for the gear and rotating shaft 206 combination may be a 10 to 1 ratio to allow the drill motor to rotate the drive shaft 200 of the trailer landing gear system, as an example. The drive socket end 92 may have a socket cavity having a polygonal surface or spline teeth.

  The drive connector 16 attached to the drive socket 18 and extending from the cover 74 is attached to the drive socket 18 by the inner tubular body 120 and is held by a set of screws 118. The inner tubular body 120 is slidably inserted into the outer tubular body 122, and a spring 124 is disposed between the tubular bodies 120, 122 and urges them away. The connector ring 126 is held in place within the outer tubular body 122 and engages the annular groove 52 of the connector shaft 20 when the drive device connector 16 is pushed over the shaft 20. The drive socket 18 is then pushed forward to engage the head end 50 against the force of the spring 124. The drive connector provides a safe release action of the drive gear device 14 and the rotary drive device 202 when it is out of the accuracy requirements of the force to drive the drive shaft 200.

  Referring to FIGS. 1 to 9, the housing 70 of the drive gear device 14 has a ballast fixture 130 having a ballast 132, and a lever for controlling the rotational force when operating the rotary drive device 202. Use as a device. The ballast 132 is inserted into the ballast hole 134 of the handwheel handle 204 as best illustrated in FIGS. There may be a hand-operated fastening device 136 that is attached to a structure adjacent to the trailer landing gear to hold the hand-operated handle 204. A handle 140 attached to the housing 70 may be used.

  Referring to FIGS. 10 to 12, the handwheel handle 204 is attached to the engagement sleeve 30 of the drive shaft connector 12. For attachment, a pair of hand-held forks 208 are rotationally attached to the shoulder screws 48 and the handle 204 is positioned to be rotated away from the axis of the connector shaft 20 to allow the rotary drive 202 to engage. The handle 204 is also rotated around the shoulder screw 48 and positioned for use in rotating the drive shaft 200, as best illustrated in FIG. When the engagement sleeve 30 is pushed to position the narrow hole end 38 against the closed end 28 against the isolated bias of the spring 34 and the small hole 42 engages the pin 40, the rotation of the handle 204 As a result, the drive shaft connector 12 and the drive shaft 200 rotate.

  Although the invention has been particularly shown and described with respect to illustrative embodiments, it will be appreciated by those skilled in the art that the foregoing changes in form and detail may be made without departing from the spirit and scope of the invention. And other changes may be made.

DESCRIPTION OF SYMBOLS 10 Trailer landing gear apparatus 12 Drive shaft connector 14 Drive gear apparatus 16 Drive apparatus connector 18 Drive socket 20 Connector shaft 30 Engagement sleeve 34 Spring 40 Pin 42 Narrow hole 48 Shoulder screw 52 Annular groove 70 Housing 76 Primary drive gear 78 Secondary Drive gear 200 Drive shaft 202 Rotation drive device 204 Handwheel handle

Claims (10)

A device that rotates a landing gear of a land vehicle or a drive shaft of a lifting device,
A drive shaft connector with a connector socket has a gap socket, the gap socket has an open end and a closed opposite end, and a connector shaft is attached to the closed end attachable to the drive shaft in an axial direction;
The engagement sleeve is slidably disposed on the connector shaft and is held by a holding clip attached to the connector shaft,
A spring is positioned about the connector shaft between the closed end and a flange attached to the engagement sleeve and biased to move the engagement sleeve away from the closed end;
A pin is attached to the connector shaft to extend laterally adjacent to the closed end, the engagement sleeve having two opposing slots at the slot ends of the engagement sleeve; A device in which the narrow hole is placed to engage the pin when a force is applied to the engagement sleeve to compress the spring.   The apparatus of claim 1, wherein the engagement sleeve has two opposing threaded holes in the sidewall, and a handwheel is rotatably mounted by a shoulder screw threaded into each threaded hole.   The apparatus of claim 1, wherein the connector shaft has an annular groove mounted adjacent to a head end of the connector shaft, and the head end has a polygonal shape on a circumferential surface. The drive gear device
A housing having a gap with a primary drive gear and a secondary drive gear mounted therein, wherein a plurality of gear teeth of the primary drive gear engage with a first gear element of the secondary drive gear;
A second gear element of the secondary drive gear is mounted in the housing and is engaged by the rotary shaft of the rotary drive device when the rotary shaft is inserted into the housing;
The drive socket engages with the head end of the connector shaft at the drive socket end, and the drive socket is attached to an end portion of the housing facing the first surface of the primary drive gear. The apparatus of claim 1 inserted through an opening and extending outwardly from the housing.   The apparatus of claim 4, wherein the primary drive gear, the secondary drive gear, and the rotating shaft have a gear ratio of about 10: 1.   The apparatus of claim 4, wherein a drive bush is mounted on the drive socket and inserted into a bush recess in the housing. The engagement sleeve has two opposing threaded holes on the side wall, and a handwheel handle with a ballast hole inside is rotatably mounted by a shoulder screw threaded into each threaded hole And
A ballast fixture is mounted on the housing and includes a ballast mounted to protrude outwardly, and the ballast is positioned when the handwheel handle is positioned substantially perpendicular to the drive shaft of the drive gear device. Inserted into the hole,
The apparatus of claim 4.   8. The apparatus of claim 7, wherein a handcuff fastener is mounted to the land vehicle structure and is mounted to secure the handwheel handle mounted substantially perpendicular to the drive shaft of the drive gear device.   The apparatus of claim 4, wherein a handle is attached to the housing. A device that rotates a landing gear of a land vehicle or a drive shaft of a lifting device,
A drive shaft connector with a connector socket has a gap socket, the gap socket having an open end and a closed opposing end, the connector shaft being axially attached to the closed end attachable to the drive shaft,
The engaging sleeve is placed while sliding on the connector shaft, and is held by a holding clip attached to the connector shaft,
A spring is positioned about the connector shaft between the closed end and a flange attached to the engagement sleeve and biased to move the engagement sleeve away from the closed end;
A pin is attached to the connector shaft to extend laterally adjacent to the closed end, the engagement sleeve having two opposing slots at the slot ends of the engagement sleeve; The narrow hole is placed to engage the pin when a force is applied to the engagement sleeve to compress the spring,
The engagement sleeve has two opposing threaded holes in the side wall, and a hand screw handle with a ballast hole inside is rotatably mounted by a shoulder screw that can be screwed into each threaded hole. And
A ballast fixture is mounted on the housing and has a ballast mounted so as to protrude outward, and when the handwheel handle is positioned substantially perpendicular to the drive shaft of the drive gear device, Inserted,
The drive socket engages with the head end of the connector shaft at the end of the drive socket, and the drive socket is attached to the end facing the first surface of the mounted primary drive gear, and the opening of the housing Inserted through the housing and extending outward from the housing. The housing has a space in which a primary drive gear and a secondary drive gear are provided, and a plurality of gear teeth of the primary drive gear are provided on the secondary drive gear. Engaging the first gear element;
The second gear element of the secondary drive gear is mounted in the housing and is engaged by the rotation shaft of the rotation drive device when the rotation shaft is inserted into the housing.

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