JPH05504304A - nut runner tool - 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] nut tranner tool Technical field The present invention is for use in attaching and removing nuts from threaded parts. The present invention relates to a nut runner tool, which is a device.

Background technology Can be rotated in both directions for faster assembly and removal of nuts A tool with a shaft that can be used is used. This type of tool is called a ``Natsutranna''. In typical cases, compressed air operated tools are used to It is used when replacing items in a short period of time. Basically, a nuttranna like this is adapted to be rotated from one end and has a nut at the other end. It has a pivotable shaft having an engagement assembly. This axis was created by hand. or actuated electromechanically by other means, such as by pneumatic forces as described above. can be done. Conveniently, the axis of the tool may be mounted, for example on a hand-held power drive. Can be connected to Lil.

It is well recognized that nutrunners of the type described above are of great importance. death However, the conventionally used ones have limitations, especially in terms of lack of compactness. However, it has many disadvantages, and there are alternatives that are more efficient in terms of nut engagement. requested. In particular, conventionally, like the nut located at the base of the cylinder, which will be described later. , it takes a lot of effort to remove the numerous nuts that are hand-tightened and are in hard-to-reach locations before being loosened. For assembly and disassembly of aircraft radial engines, which takes a lot of time to disassemble. Therefore, there is a need for such a versatile type of effective tool.

Therefore, the present invention overcomes all or some of the disadvantages hitherto encountered. This was done with the purpose of reducing or reducing the Easy to operate and use even in many situations where various difficulties have arisen Our goal is to provide a nut runner tool that can improve work efficiency at the same time. Ru. Another object of the invention is to overcome the problems previously practiced as far as nut engagement assemblies are concerned. Improved nuts that can be designed in a more compact form than those The purpose is to provide runner tools. Other objects and advantages of the invention are described below. This will be made clear in the explanation below.

Disclosure of invention In view of the foregoing and other contemplated objects, the present invention, according to certain aspects thereof, For example, in a broad sense, it can be rotated from one end, and the other end can be rotated. Nut runner tool having a rotatable shaft with a nut engaging assembly at the end the nut engagement assembly comprises a first gear rotated by the shaft; , adapted to be rotated by the first gear and adapted to the nut to be rotated. having a hole or recess and being easily visually located with respect to said nut; and a second gear provided at a position offset from the axis so as to It is a nut runner tool. This is a bottomed type that constitutes the recess. involving the use of a socket, but the engagement of the nut by the second gear is along the axis. Make a continuous hole in the shape of a ring spanner so that it can be seen in the direction of the nut. It is convenient.

According to another aspect, the invention includes an elongated casing and an end of the casing. actuator connector means provided at the section; and a nut engagement assembly provided at the other end of the casing.

is rotatably provided within the casing and extends from one end to the other end thereof. a drive shaft extending from the casing, the shaft being located at the one end of the casing; an end of the actuator connector means for connecting said actuator connector means to a drive source for rotation. It is designed to be connected so that power can be transmitted when The nut engagement assembly is rotatable with the two gears meshing with each other. a gear case attached thereto, one of the two gears being attached to the other of the casing; a first or drive gear rotatable by the drive shaft at one end; the other or second gear is rotated by the drive gear when the shaft rotates; a hole on the axis of rotation that is shaped to accommodate the nut to be rotated when It is a driven gear, the second or driven gear is easily visually located with respect to the nut; is provided at a position offset from the axis, and The hole is inserted forward along the axis upon engagement of the nut by the second gear. A nut characterized by being continuous in the axial direction so as to be visible in the direction of the nut. It is a tool.

For purposes of this aspect of the invention, said shaft is aligned in a straight line by means of a universal joint. a correspondingly curved elongate adjacent to said universal joint, but not connected end to end; Consisting of two linear sections that can rotate simultaneously within each section of the casing. be able to. Further, the second gear is closely housed in the hole of the gear case and rotates. movable and prevented from moving axially into said hole by means of a perforated cover. It is convenient to be restrained by sea urchins. In this way, it can be assembled very compactly. Each part around the second gear can be designed so that it can be erected.

According to various aspects of the invention, the nut runner tool is manually operated. , or using a pneumatically driven or electromechanically operated power source. I can be there. In this embodiment, a rechargeable cordless electric drill mechanism is used. so that it can be connected to a hand-held trigger-operated electric drill commonly available on the market. , a tool having an adapter housing at the drive end of the shaft is also possible.

Other features of the present invention will be easily understood from the following description.

Brief description of the drawing In order to make the invention easier to understand and implement, the following accompanying drawings are provided: The present invention will be explained with reference to the following.

Figure 1 shows a power source in the form of a rechargeable handheld cordless electric drill. 1 is a partial cross-sectional view of a nut runner tool according to the present invention installed; FIG.

FIG. 2 is an enlarged cross-sectional view of the components shown in the left end portion of FIG.

Figure 3 is an enlarged cross-sectional view of the components in the curved part of the casing shown in Figure 1. be.

4 is an exploded perspective view of the components of the nut engagement assembly shown in FIG. 2; FIG. Ru.

Figure 5 shows the nut runner tool attached to the crankcase nut of an aircraft engine. It is an explanatory view showing a state in which it is used.

Figure 6 shows the relationship shown in Figure 5 when the nut is removed using the nut runner tool. It is an explanatory view showing connected parts in more detail.

BEST MODE FOR CARRYING OUT THE INVENTION The nut runner tool shown in the accompanying drawings rotates from one end 11 thereof. and having a nut engaging assembly 13 at the other end 12. It has a movable shaft 10. In this example, the shaft 10 is shown in detail in FIG. However, a universal joint 16 using the well-known spherical end Allen-key connector is used. Therefore, two straight parts 14.1 that do not lie on a straight line but whose ends are connected to each other Consists of 5. These two straight sections 14.15 are located near the universal joint 16. Each casing section 17 of the elongated main casing 19 is correspondingly curved at 20 , 18 at the same time.

The end 11 of the shaft is, in this embodiment, a ratcheting and reversible screwdriver. Cordless type with adjustable setting torque The rRYOB IJ trademark is used as a standard drill that is rechargeable. Power can be transmitted to the power source, which is a hand drill 21, such as the one sold with the It is now possible to connect. The hand drill 10 operates with the hand clip 22. trigger 23, thereby allowing removal from a standard chuck 24 in a standard manner. Rotary motion is transmitted to the removably attached shaft end 11. Ru. As can be seen in FIG. is fixed in an adapter housing 27 connected to a hand drill 21. It is fixed within the end cap 26. The adapter housing 27 is rDE Low thermal conductivity materials such as those sold under the LRINJ trademark or other suitable Advantageously, it is made of a plastic material or an aluminum material.

The casing 19 is advantageously formed of one-piece stainless steel; The end 29 (furthest from the hand drill 21) is connected to the first instant at position 30. A perforated cover plate which is the gear case 32 of the driving gear 33 and the driven gear 34. It is welded to 31. Both gears are spur gears in this embodiment, and are connected to the nut. The main parts constituting the mating assembly 13 are engaged with each other at their peripheral edges. drive The gear 33 is closely rotatably housed within a recess 35 in the body portion 36 of the gear case. another universal joint similar to the universal joint 16 via the drive socket 38. It is rotated by the shaft end 11 by means of the joint 37 .

As is clear from FIG. 4, the driven gear 34 has a hexagonal shape to fit the nut. having a continuous axial hole 39 forming a lip 41 of the body portion 36 and a perforated cover; While being restrained from moving in the axial direction by the plate 31, it is tightly held in the hole 40. It is rotatably housed.

In use, each of said parts forms the complete tool shown in FIG. 1 as described above. It is assembled so that it becomes

This is indicated by the reference numeral 44 in FIG. 6 with the crankcase 42. Figures 5 and 6 show the cylinders 43 of the engine, each housing a piston. It is used as is obvious. The nut 45 has a large number of threaded parts 46. Although used, a lock nut 47 is also shown. Figure 6 is Natsu The nut is shown removed and the nut is removed for use in restricted areas. It is noted that the mating assembly 13 is very compact. Driven gear 34 is in front Socket-type The nut can be visually recognized through the hole 39 in contrast to the case where the recess is used. along the axis 10 and the casing 19 in the direction of said nut. It has been improved in that it can be observed with the naked eye. Due to non-linear shaft and casing This allows easier access to nuts in hard-to-reach locations. This makes your work much easier and more efficient. .

It is thus possible that the nut runner tool described above achieves the intended purpose of the present invention. Although it is easily understood that the embodiment of the present invention described above is effective, Within the technical scope of the present invention as described in the scope of the requirements, various configurations and designs may be made. Those skilled in the art will easily understand that the present invention can be implemented with various modifications.

F old, 6 Summary book It is designed to be rotated from one end 11 and has a nut at the other end 12. Nut runner of the type having a rotatable shaft 10 having a nut engaging assembly 13 Tools provided. The nut engagement assembly 13 is rotated by the shaft 10 It has a No. 11iI wheel 33 and a hole or recess 39 that fits into the nut to be rotated. It also includes a second gear 34 rotated by the first gear 33. 2nd gear 34 is offset from the axis 10 to facilitate visual placement with respect to the nut. in position. The hole 39 prevents the engagement of the nut with the second gear 34 along the axis 10. Continuous, like a ring spanner, so that it can be seen in the direction of the It is convenient. The shaft 10 is capable of transmitting driving force and is removable like a hand drill 21. from the nut engagement assembly 13 to the adapter housing for releasable connection. Advantageously, it is rotatable within the casing 19 extending to 27.

international search report

Claims (9)

[Claims] 1. It can be pivoted from one end and has a nut-engaging mechanism at the other end. A nut runner tool having a rotatable shaft having an assembly, the nut runner tool a first gear rotated by the shaft; and a first gear driven by the first gear. and has a hole or recess to accommodate the nut to be rotated. and from the shaft for visual and easy positioning with respect to the nut. A nut run nut characterized by having a second gear provided at a shifted position. Rules. 2. It can be pivoted from one end and has a nut-engaging mechanism at the other end. A nut runner tool having a rotatable shaft having an assembly, the nut runner tool a first gear rotated by the shaft; and a first gear driven by the first gear. and has a continuous hole to accommodate the nut to be rotated. and the hole is arranged so that it can be visually and easily positioned with respect to the nut. visualizing its engagement with the nut along the axis in the direction of the nut. a second gear provided at a position offset from the axis so that the A nut runner tool characterized by: 3. an elongated casing, actuator connector means provided at one end of the casing; a nut engagement assembly on the other end of the casing; is rotatably provided within the casing and extends from one end to the other end thereof. a drive shaft extending from the casing, the shaft being located at the one end of the casing; an end of the actuator connector means for connecting said actuator connector means to a drive source for rotation. It is designed to be connected so that power can be transmitted when The nut engagement assembly is rotatable with the two gears meshing with each other. a gear case attached thereto, one of the two gears being attached to the other of the casing; a first or drive gear rotatable by the drive shaft at one end; the other or second gear is rotated by the drive gear when the shaft rotates; It has a hole on the axis of rotation that is shaped to accommodate the nut to be rotated when It is a driven gear, the second or driven gear can be visually and easily positioned with respect to the nut; is provided at a position offset from the axis, and the hole is forward along the axis upon engagement of the nut by the second gear; A nut characterized by being continuous in the axial direction so as to be visible in the direction of the nut. trunner tool. 4. Two pieces in which the axes do not line up in a straight line, but their ends are connected by a universal joint. a straight portion of the joint, said straight portion being adjacent to said universal joint and correspondingly curved. It is characterized in that it is simultaneously rotatable within the curved elongated portion of the casing. The nut runner tool according to claim 3. 5. The first and second gears are two spur gears that mesh at their peripheral edges. The nut runner tool according to any one of claims 1 to 4. 6. The second gear is of a gear case forming part of the nut engagement assembly. The second gear is closely rotatably housed within the bore and provides a compact assembly. The hole is pierced by cover means to prevent axial movement into the hole. Nut run nuts according to the first or second claim, characterized in that they are restrained. Rules. 7. the second gear is closely rotatably housed within a hole in the gear case, and in said hole by means of a perforated cover so as to form a compact assembly. The third or fourth claim is restrained from moving in the axial direction. Nutrunner tool as described in the request. 8. The power source may be manually operated, pneumatically driven, or electrically mechanical. The method according to any one of claims 1 to 7, characterized in that the method is operated by Nutrunner tool included. 9. that said power source is a hand-held rechargeable cordless drill mechanism; A nut runner tool according to any one of claims 1 to 8.