Fastening tool for chain saw and chain saw system

Abstract

A fastening tool for a chainsaw and a chainsaw system are provided. The fastening tool includes a first shaft extending from a first end to a second end, wherein the first end includes a recessed slot having an opening at the first end; and a second shaft extending away from the first shaft to the screwdriver head.

Description

Technical Field

[0001] The present disclosure relates generally to power tools and, more particularly, to a screnching tool for servicing a chain saw. Background Art

[0002] Power tools are generally used to replace hand tools. Power tools are able to perform the same or similar tasks as hand tools with greater efficiency, allowing the operator controlling the power tool to use less effort in completing the task. For example, a chain saw can cut through wood faster than a traditional hand saw.

[0003] Higher efficiency and performance can be achieved by using a power device (such as a gas engine or an electric motor) to drive the working implement of a power tool. These engines and motors can generally be operated at a variable speed controlled by the operator through an actuator. For example, when the actuator is further depressed, the chain saw moves the chain around the outer track of the guide rod at an increased speed. The chain saw can further incorporate a lubricant system to store lubricant, which can be used to lubricate the chain, the outer track or other components. However, since power tools are used for a long time, they may require regular maintenance to maintain continued performance.

[0004] Therefore, there is a need in the art for improved tools that can assist in maintaining or adjusting power tools. In particular, it would be advantageous to provide a fastening tool for maintaining multiple tool functions of a chain saw. Utility Model Content

[0005] According to the present disclosure, various aspects and advantages of the present invention will be partially set forth in the following description, or may be apparent from the description, or may be understood through technical practice.

[0006] According to one embodiment, a fastening tool for a chain saw is provided. The fastening tool includes: a first shaft extending from a first end to a second end, wherein the first end includes a recessed slot having an opening at the first end; and a second shaft extending away from the first shaft to a screwdriver head.

[0007] According to another embodiment, a fastening tool for a chain saw is provided. The fastening tool includes: a first shaft extending from a first end to a second end, wherein the first end includes a first socket, the first socket includes a recessed slot having an opening at the first end, and wherein the recessed slot extends in a direction substantially orthogonal to the first shaft; and a second shaft extending away from the first shaft to a screwdriver head, wherein the second shaft includes a protrusion extending away from the screwdriver head.

[0008] According to another embodiment, a chain saw system is provided. The chain saw system includes a chain saw and a fastening tool. The chain saw includes a housing and a guide bar, the guide bar extending away from the housing, wherein the outer periphery of the guide bar includes a guide rail, and the guide rail is configured to support the chain. The fastening tool includes: a first shaft extending from a first end to a second end, wherein the first end includes a recessed slot having an opening at the first end; and a second shaft extending away from the first shaft to a screwdriver head, wherein the second shaft includes a protrusion extending away from the screwdriver head.

[0009] These and other features, aspects and advantages of the present invention will become better understood with reference to the following description and appended claims.The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the present technology and, together with the description, are used to explain the principles of the present technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] The specification provides a comprehensive and achievable disclosure of the present invention with reference to the accompanying drawings, which is directed to a person skilled in the art and includes the best mode for making and using the present system and method, in which:

[0011] Figure 1 is a perspective view of a chain saw system including a fastening tool and a chain saw according to an embodiment of the present disclosure;

[0012] Figure 2 is a perspective view of a fastening tool according to an embodiment of the present disclosure;

[0013] Figure 3 is a perspective view of a first shaft of a fastening tool according to an embodiment of the present disclosure;

[0014] Figure 4 is a perspective view of a first end of a first shaft of a fastening tool according to an embodiment of the present disclosure; and

[0015] Figure 5 is a perspective view of a second shaft of a fastening tool according to an embodiment of the present disclosure. DETAILED DESCRIPTION

[0016] The present invention will now be described in detail with reference to embodiments of the present invention, one or more examples of which are shown in the accompanying drawings. The word "exemplary" is used herein to mean "used as an example, instance or illustration". Any implementation described herein as "exemplary" is not necessarily interpreted as being more preferred or more advantageous than other implementations. In addition, each example is provided by way of explanation rather than limitation of the technology. In fact, it is obvious to those skilled in the art that modifications and changes may be made to the present technology without departing from the scope or spirit of the claimed technology. For example, a feature shown or described as part of one embodiment may be used together with another embodiment to produce yet another embodiment. Therefore, the present disclosure is intended to cover such modifications and changes within the scope of the appended claims and their equivalents. Numerical and letter marks are used in the specific implementation to represent features in the drawings. Similar or similar marks in the drawings and the specification are used to refer to similar or similar parts in the present invention.

[0017] As used herein, the terms "first", "second" and "third" can be used interchangeably to distinguish one component from another, rather than to indicate the position or importance of a single component. The singular expressions "one", "an" and "the" also include plural cases, unless the context clearly dictates otherwise. Terms such as "coupled", "fixed", "connected to" refer to direct coupling, fixing or connection, as well as indirect coupling, fixing, or connection through one or more intermediate components or features, unless otherwise specified in the text. The terms "include", "comprise", "compose", "have" or any other variants thereof herein are intended to cover non-exclusive inclusion. For example, a process, method, article or device including a set of features is not necessarily limited to these features, but may include features that are not explicitly listed or other features inherent to such a process, method, article or device. In addition, unless there is a clear statement to the contrary, "or" is inclusive rather than exclusive. For example, any of the following satisfies conditions A or B: A is true (or exists) and B is false (or does not exist), A is false (or does not exist) and B is true (or exists), and both A and B are true (or exist).

[0018] Terms indicating approximation, such as "about," "approximately," "approximately," or "substantially," include values ​​within 10% greater or less than the value being described. When used in the context of an angle or direction, these terms include values ​​within 10 degrees greater or less than the angle or direction being described. For example, "approximately perpendicular" includes directions that deviate from perpendicular within 10 degrees in any direction (e.g., clockwise or counterclockwise).

[0019] As used herein, the term "power tool" is intended to refer to a device used to perform a work operation such as cutting materials such as wood, metal, concrete, grass, etc.; trimming objects such as branches; biasing fluids such as air and water; etc. As a non-limiting example, a power tool may include a chain saw or other device that uses a cutting chain that rotates around one or more parts.

[0020] The benefits, other advantages and solutions to the problems are described below in conjunction with specific embodiments. However, the benefits, advantages, solutions to the problems and any features that may cause any benefit, advantage or solution to occur or become more obvious should not be construed as key, required or essential features of any or all claims.

[0021] In general, a fastening tool according to one or more embodiments described herein may generally include a tool that provides a variety of different tool functions for maintaining one or more parts of a power tool (such as a chain saw). The fastening tool may include a first shaft having a recessed slot at one end of the first shaft. The recessed slot may be configured so that a guide rail for a power tool can pass through it. The wall defining the recessed slot can thereby clean objects or other foreign debris from the guide rail. The fastening tool may also include a second shaft extending away from the first shaft. The second shaft may include a screwdriver head at the open end of the second shaft away from the first shaft. The screwdriver head may also include a protrusion extending away from the screwdriver head. The screwdriver head and the protrusion may be used for additional maintenance tasks, such as cleaning the outlet port of a lubricant system of the same power tool.

[0022] Now referring to the accompanying drawings, Figure 1 A power tool system 10 including a fastening tool 100 and a power tool 200 according to an exemplary embodiment of the present disclosure is illustrated. More particularly, Figure 1 A chainsaw system 10 is illustrated in which the power tool is a chainsaw 200 according to an exemplary embodiment of the present disclosure. In some embodiments, the fastening tool 100 can be configured to be selectively stored on the chainsaw 200. For example, the chainsaw 200 can have one or more recesses, snaps, loops, or similar securing features for releasably storing the fastening tool 100 therein. In other embodiments, the fastening tool 100 and the chainsaw 200 can be separate components that do not have temporary attachment compatibility.

[0023] The chain saw 200 generally includes a housing 215 and a guide bar 225, which includes an elongated body extending from a front portion 217 of the housing 215. The guide bar 225 can have a guide rail 201 around its periphery. The chain saw 200 can also include a chain 214, which is movably coupled around the gear train and the guide bar 225 (e.g., via an outer track 101). The guide rail 201 of the guide bar 225 can be configured to support the chain 214. The chain 214 includes teeth that cause the chain 214 to cut into materials, such as logs and branches, when moving along the guide bar 225.

[0024] The chainsaw 200 may include a variety of features and configurations to facilitate manipulation and operation of the chainsaw 200 by a user. Figure 1 As shown, the housing 215 includes a first handle 230 (e.g., a top handle) that is coupled between the battery pack receiving container 255 and the front portion 217 of the housing 215. Thus, the first handle 230 extends in a direction along the longitudinal axis LA of the guide rod 225. In addition, the housing 215 includes a second handle 240 (e.g., an elongated curved rod) that is coupled between the first handle 230 and the side wall 256 of the battery pack receiving container 255. The illustrated second handle 240 extends beyond the first side 216 of the housing 215 and includes a generally U-shaped central axis.

[0025] The first handle 230 includes an actuator 260 that is operable to actuate a drive state of the power device. That is, when depressed, the actuator 260 can engage the power device to rotate the chain 214 by causing one or more gears in the gear train to rotate. As the actuator 260 is further depressed, the speed of the power device can increase from zero speed to a maximum speed. In this regard, the actuator 260 can variably affect the speed of the power device between a stop speed that occurs when the actuator 260 is not depressed and a maximum speed that occurs when the actuator 260 is fully depressed.

[0026] The power device includes any power generating source that directly or indirectly moves the chain 214 around the guide rod 225. That is, the power device can be operably connected to the gear train to selectively drive the gear train and cause the chain 214 to rotate around the guide rod 225. For example, in some embodiments, the power device can include a gas-powered engine. In some embodiments, the power device can include an electric motor. The power device can be positioned in any suitable location within or around the housing 215 that facilitates operative connection with the chain 214. For example, as Figure 1 As shown, the power device can be positioned on a first side 216 of the housing 215 that is coupled to the second handle 40 .

[0027] The chain saw 10 may also include a lubricant system inside the housing 215 for lubricating the chain intermittently, periodically or continuously during operation. For example, the lubricant system may include a pump having a spur gear that can engage with the worm gear of the drive shaft. The pump may include an inlet port that is coupled to an outlet of the lubricant reservoir through a first conduit. The pump may also include an outlet port that is positioned on the opposite side of the inlet port. The outlet port may include a nozzle or be coupled to the nozzle through a second conduit. Accordingly, the power device drives the lubricant system through a drive shaft for the pump so that the lubricant (e.g., cutting chain oil) in the lubricant reservoir is ejected from the outlet port. The outlet port is positioned adjacent to the guide rod 225 and the chain 214 to distribute the lubricant on the chain 214 during operation.

[0028] The lubricant system may be adjustable or non-adjustable. For example, the lubricant system may be manually adjustable to adjust the amount / rate of lubricant pumped to the chain 214. For example, an adjustable lubricant pump system may include a pump shaft that rotates and reciprocates within a pump body and a camshaft that engages the pump shaft to limit the stroke length of the pump shaft as the pump shaft reciprocates. An operator may then adjust the camshaft, causing an increase or decrease in the stroke length of the pump shaft and a resulting change in the oil output of the adjustable lubricant pump system.

[0029] However, with continued use of the operation of the chainsaw 200, it may become necessary to perform maintenance on one or more components of the chainsaw 200. For example, debris or foreign objects may be disposed on the guide rail 201. Additionally, if the outlet port becomes clogged or blocked by debris, it may become necessary to access the lubrication system. Furthermore, it may be necessary to add lubricant to the reservoir. In some cases, accessing the outlet port and / or adding lubricant may require removing a portion of the housing 215, such as removing a plate by unscrewing one or more bolts. These collective operations may require multiple separate tools, which may become cumbersome or misplaced.

[0030] Reference now Figure 2 , a perspective view of the fastening tool 100 is shown alone. The fastening tool 100 combines multiple tool features into a single tool. Multiple tool features can be used in the same power tool (such as Figure 1 The fastening tool 100 can be attached to a chain saw 100 (shown) to provide an operator with a single tool having all the necessary features for (one or more) desired maintenance operations. For example, in addition to adding lubricant or cleaning debris at the outlet port, the fastening tool 100 can contain the necessary features for cleaning or maintaining the rails of the guide bar or the chain itself. The fastening tool 100 avoids the operator having to carry and switch between multiple separate tools when operating on the same power tool.

[0031] The fastening tool 100 generally includes a first shaft 110 and a second shaft 130 extending from the first shaft 110. Both the first shaft 110 and the second shaft 130 may include one or more tool features as disclosed herein.

[0032] Additional references Figure 3 , a perspective view of the first shaft 110 is illustrated separately. As shown, the first shaft 110 extends from the first end 111 to the second end 112. The first shaft 110 may extend in a substantially linear direction as shown, or may include one or more bends, curved portions, or other contoured portions between the first end 111 and the second end 112. In addition, the first shaft 110 may include a solid piece, or may have one or more hollow portions. For example, as will be discussed herein, at least a portion of the first shaft 110 and the first end 111 may be substantially hollow. In some embodiments, the entire first shaft 110 may be hollow from the first end 111 to the second end 112. The exterior of the first shaft 110 may include any configuration suitable for handheld operation by a user. For example, the first shaft 110 may have a smooth surface, a textured surface, a contoured surface, or a combination thereof.

[0033] Additional references Figure 4 , illustrating a first end 111 of the first shaft 110. The first end 111 of the first shaft 110 includes a first end 111 for maintaining a power tool (such as Figure 1 1 and 12. The first end 111 may include one or more tool features of the chain saw 200 shown in the drawings. For example, the first end 111 may include a rail cleaning feature and a potential receptacle feature for one or more maintenance operations.

[0034] That is, the first end 111 of the first shaft 110 may include a recessed slot 115 having an opening 116 at the first end 111. The recessed slot 115 is configured to allow a guide rail of a power tool to pass therethrough. For example, the recessed slot 115 may be configured to allow a guide rail of a chain saw guide bar to pass therethrough so that the guide rail can become at least partially cleared of debris thereon.

[0035] In some embodiments, the recessed slot 115 can be a continuous channel. For example, if the first shaft 110 is solid at the first end 111, the recessed slot 115 can pass through the first shaft so that the first shaft has two continuous side walls defining the recessed slot 115. However, in some embodiments, the recessed slot 115 can include a first recessed slot 117 and a second recessed slot 118 on different sides of the first end 111 of the first shaft 110. For example, as shown, if the first shaft 110 is hollow at the first end 111, the first end 111 can include an outer wall 113 surrounding the hollow interior 114. The first end 111 can therefore include a first recessed slot 117 and a second recessed slot 118 at different portions of the outer wall 113. The first recessed slot 117 and the second recessed slot 118 can be aligned in a linear direction substantially orthogonal to the first shaft 110 (i.e., the direction between the first end 111 and the second end 112).

[0036] The recessed slot 115 can have one or more widths that are sized to accommodate a rail of a power tool. For example, the recessed slot 115 can have a width that is at least 5% greater than the thickness of the rail. In some embodiments, the recessed slot 115 can have a width that is at least 10% greater than the thickness of the rail. In some embodiments, the recessed slot 115 can have a width that is at least 25% greater than the thickness of the rail. In some embodiments, the recessed slot 115 can have a width that is at least 50% greater than the thickness of the rail (such as at least 100% greater than the thickness of the rail). Thus, the size of the recessed slot 115 can be designed to accommodate the rail as it passes through while being close enough to remove foreign debris (e.g., dust or wood) disposed on the rail.

[0037] In some embodiments, the recessed slot 115 can have a non-uniform thickness, such as a tapered thickness. For example, when the recessed slot 115 is formed via a first recessed slot 117 and a second recessed slot 118 in the outer wall 113 of the first end 111 of the first shaft 110, the first recessed slot 117 can have a greater width than the second recessed slot 118. Such embodiments can allow for easier initial reception of the guide rail in the larger slot while providing better debris cleaning via the smaller slot. Alternatively, in some embodiments, the recessed slots 115 (e.g., the first recessed slot 117 and the second recessed slot 118) can have a common width.

[0038] In some embodiments, the first shaft 110 may also include a socket feature. Figure 4As shown, the first end 111 of the first shaft 110 can have a hollow interior, wherein the inner surface of the outer wall 113 is configured as a socket. That is, the inner surface of the outer wall 113 can be shaped to receive the head of a fastener (such as a bolt). In some embodiments, the inner surface of the outer wall 113 can include six sides, as shown in the figure, so that the inner surface can receive the bolt head. In some embodiments, the outer wall 113 itself can include six sides. However, in some embodiments, the outer wall 113 can have a substantially circular outer surface, and the inner surface of the outer wall 113 has six sides.

[0039] The socket of the first shaft 110 may be sized and shaped to receive a specific fastener, or sized and shaped to receive a standard fastener of a specific size. In some cases, the first shaft 110 may have a first socket at the first end 111 and a second socket at the second end 112. In such embodiments, the first socket and the second socket may have different sizes to accommodate different fasteners (e.g., two bolts of different sizes).

[0040] Return to reference Figure 2 The fastening tool 100 further includes a second shaft 130 extending away from the first shaft 110. That is, the second shaft extends away from the first shaft 110 at the connection end 131 toward the screwdriver head 135. The screwdriver head 135 is thus away from the first shaft 110 relative to the connection end 131.

[0041] The second shaft 130 can be connected to the first shaft 110 at the connection end 131 via any suitable configuration. For example, the first shaft 110 and the second shaft 130 can be integral with each other, such as through a single casting process during manufacturing. In some embodiments, the connection end 131 of the second shaft 130 can be welded to the first shaft 110. In some embodiments, the second shaft 130 can be releasably connected to the first shaft 110 so that the first shaft 110 and the second shaft 130 can be combined or separated based on the needs of the operator.

[0042] The second shaft 130 may extend from the first shaft 110 at any suitable position between the first end 111 and the second end 112 of the first shaft 110. For example, the second shaft 130 may extend from the first shaft 110 at a position substantially midway between the first end 111 and the second end 112. Alternatively, the second shaft 130 may extend from the first shaft 110 at a position closer to the first end 111 or the second end 112 such that the second shaft 130 is offset from the midpoint. For example, as Figure 2 As shown, the second shaft 130 may extend from the first shaft 110 at a position closer to the first end 111 than the second end.

[0043] Additional references Figure 5, a perspective view of the second shaft 130 is illustrated separately. As shown, the second shaft 130 extends from the connection end 131 to the screwdriver head 135. The second shaft 130 may extend in a substantially linear direction as shown, or may include one or more bends, curved portions, or other contoured portions between the connection end 131 and the screwdriver head 135. In addition, the second shaft 130 may include a solid piece, or may have one or more hollow portions. For example, at least a portion of the second shaft 130 may be substantially hollow. In some embodiments, the entire second shaft 130 may be hollow from the connection end 131 to the screwdriver head 135. The exterior of the second shaft 130 may include any configuration suitable for handheld operation by a user. For example, the second shaft 130 may have a smooth surface, a textured surface, a contoured surface, or a combination thereof.

[0044] The screwdriver head 135 can be configured for any suitable screwdriver function. For example, the screwdriver head 135 can be configured as a flat head screwdriver as shown. In some embodiments, the screwdriver head 135 can be configured as a cross head screwdriver. In addition, the size of the screwdriver head 135 can be designed to any suitable size. For example, the size of the screwdriver head 135 can be designed to be used on one or more components of a power tool (such as a lubricant system of a chain saw).

[0045] Still reference Figure 5 , the second shaft 130 also includes a protrusion 137 extending away from the screwdriver head 135. For example, the protrusion 137 can extend away from the end of the screwdriver head (such as at a mid-position along the end of the screwdriver head 135).

[0046] The protrusion 137 can include any suitable size and shape that can be used to maintain a power tool. For example, the size and shape of the protrusion 137 can be designed to facilitate cleaning the outlet port of the lubricant system of the chain saw. That is, the protrusion 137 can be smaller than the outlet port so that the protrusion 137 can be at least partially inserted to remove debris in the outlet port.

[0047] In some embodiments, the second shaft 130 may include a single protrusion 137. However, in some embodiments, the second shaft 130 may include multiple protrusions 137. For example, multiple protrusions may extend from the end of the screwdriver head 135, or one or more protrusions may extend from the second shaft 130 at a location other than the end of the screwdriver head 135.

[0048] Thus, an operator can use the fastening tool disclosed herein to perform a variety of maintenance tasks without having to switch between different and independent tools. For example, a chain saw system includes a chain saw provided with a fastening tool that is releasably stored on the chain saw or otherwise packaged together. The fastening tool can include multiple functional elements to facilitate a variety of maintenance operations, such as but not limited to rail cleaning and oil port cleaning. In addition to performing the maintenance operations themselves, the operator can also use a single fastening tool to access necessary components without having to switch between multiple independent tools.

[0049] Further aspects of the present invention are provided by one or more of the following embodiments:

[0050] A fastening tool for a chain saw includes: a first shaft extending from a first end to a second end, wherein the first end includes a recessed slot having an opening at the first end; and a second shaft extending away from the first shaft to a screwdriver head.

[0051] The fastening tool according to any one or more embodiments disclosed herein, wherein the first end of the first shaft includes an outer wall defining a hollow interior, wherein the recessed slot is disposed in the outer wall.

[0052] According to any one or more embodiments of the fastening tool disclosed herein, the recessed slot includes a first recessed slot on a first portion of the outer wall and a second recessed slot on a second portion of the outer wall, and wherein the first recessed slot and the second recessed slot are aligned in a direction substantially orthogonal to the first axis.

[0053] The fastening tool according to any one or more embodiments disclosed herein, wherein the first recessed slot and the second recessed slot have a common width.

[0054] The fastening tool according to any one or more embodiments disclosed herein, wherein the hollow interior of the first end is configured as a socket.

[0055] The fastening tool according to any one or more embodiments disclosed herein, wherein the first end of the first shaft comprises a first socket, and wherein the second end of the first shaft comprises a second socket.

[0056] According to any one or more of the embodiments of the fastening tool disclosed herein, the first socket and the second socket have different sizes.

[0057] The fastening tool according to any one or more embodiments disclosed herein, wherein the screwdriver head includes a protrusion extending away from the screwdriver head.

[0058] The fastening tool according to any one or more of the embodiments disclosed herein, wherein the protrusion extends from an intermediate position along a distal end of the screwdriver head.

[0059] The fastening tool according to any one or more of the embodiments disclosed herein, wherein the second shaft extends from the first shaft at a position closer to the first end of the first shaft than the second end of the first shaft.

[0060] The fastening tool according to any one or more of the embodiments disclosed herein, wherein the second axis extends from the first axis in a direction substantially orthogonal to the first axis.

[0061] The fastening tool according to any one or more embodiments disclosed herein, wherein the first shaft is hollow from the first end to the second end.

[0062] A fastening tool for a chain saw includes: a first shaft extending from a first end to a second end, wherein the first end includes a first socket, the first socket includes a recessed slot having an opening at the first end, and wherein the recessed slot extends in a direction substantially orthogonal to the first shaft; and a second shaft extending away from the first shaft to a screwdriver head, wherein the second shaft includes a protrusion extending away from the screwdriver head.

[0063] The fastening tool according to any one or more of the embodiments disclosed herein, wherein the second shaft extends from the first shaft at a position closer to the first end of the first shaft than the second end of the first shaft.

[0064] The chain saw system includes a chain saw and a fastening tool. The chain saw includes a housing and a guide bar extending away from the housing, wherein the outer periphery of the guide bar includes a guide rail configured to support a chain. The fastening tool includes: a first shaft extending from a first end to a second end, wherein the first end includes a recessed slot having an opening at the first end; and a second shaft extending away from the first shaft to a screwdriver head, wherein the second shaft includes a protrusion extending away from the screwdriver head.

[0065] The chain saw system according to any one or more of the embodiments disclosed herein, wherein the fastening tool is configured to be selectively stored on the chain saw.

[0066] The chain saw system according to any one or more of the embodiments disclosed herein, wherein a width of the recessed slot is greater than a thickness of the guide rail.

[0067] The chain saw system according to any one or more of the embodiments disclosed herein, wherein the chain saw comprises a lubricant system.

[0068] The chain saw system according to any one or more of the embodiments disclosed herein, wherein the lubricant system comprises an outlet port.

[0069] The chain saw system according to any one or more of the embodiments disclosed herein, wherein the protrusion is smaller than the outlet port.

[0070] This specification uses examples to disclose the utility model, including the best mode, and enables any technician in the field to practice the utility model, including making and using any device or system and performing any combined method. The patent scope of the utility model is defined by the claims and may include other examples that can be thought of by those skilled in the art. If these other examples include structural elements that are not different from the literal wording of the claims, or include equivalent structural elements that are not substantially different from the literal wording of the claims, the scope of the claims covers these other examples.

Claims

1. A fastening tool for a chain saw, characterized in that: The fastening tool comprises: a first shaft extending from a first end to a second end, wherein the first end includes a recessed slot having an opening at the first end; and A second axis extends away from the first axis to the screwdriver head.

2. The fastening tool according to claim 1, characterized in that: The first end of the first shaft includes an outer wall defining a hollow interior, wherein the recessed slot is disposed in the outer wall.

3. The fastening tool according to claim 2, characterized in that: The recessed slots include a first recessed slot on a first portion of the exterior wall and a second recessed slot on a second portion of the exterior wall, and wherein the first recessed slot and the second recessed slot are aligned in a direction orthogonal to the first axis.

4. The fastening tool according to claim 3, characterized in that: The first recessed slot and the second recessed slot have a common width.

5. The fastening tool according to claim 2, characterized in that: The hollow interior of the first end is configured as a socket.

6. The fastening tool according to claim 1, characterized in that: The first end of the first shaft includes a first socket, and wherein the second end of the first shaft includes a second socket.

7. The fastening tool according to claim 6, characterized in that: The first socket and the second socket have different sizes.

8. The fastening tool according to claim 1, characterized in that: The screwdriver head includes a projection extending away from the screwdriver head.

9. The fastening tool according to claim 8, characterized in that: The projection extends from an intermediate position along a distal end of the screwdriver head.

10. The fastening tool according to claim 1, characterized in that: The second shaft extends from the first shaft at a position closer to the first end of the first shaft than the second end of the first shaft.

11. The fastening tool according to claim 1, characterized in that: The second axis extends from the first axis in a direction orthogonal to the first axis.

12. The fastening tool according to claim 1, characterized in that The first shaft is hollow from the first end to the second end.

13. A fastening tool for a chain saw, characterized in that: The fastening tool comprises: a first axis extending from a first end to a second end, wherein the first end includes a first socket, the first socket including a recessed slot having an opening at the first end, and wherein the recessed slot extends in a direction orthogonal to the first axis; and A second shaft extends away from the first shaft to the screwdriver head, wherein the second shaft includes a projection extending away from the screwdriver head.

14. The fastening tool according to claim 13, characterized in that The second shaft extends from the first shaft at a position closer to the first end of the first shaft than the second end of the first shaft.

15. A chain saw system, characterized in that: The chain saw system comprises: A chain saw comprising a housing and a guide bar extending away from the housing, wherein an outer periphery of the guide bar comprises a guide rail configured to support a chain; and A fastening tool, comprising: a first shaft extending from a first end to a second end, wherein the first end includes a recessed slot having an opening at the first end; and A second shaft extends away from the first shaft to the screwdriver head, wherein the second shaft includes a projection extending away from the screwdriver head.

16. The chain saw system according to claim 15, characterized in that The fastening tool is configured to be selectively stored on the chain saw.

17. The chain saw system according to claim 15, characterized in that The width of the recessed slot is greater than the thickness of the guide rail.

18. The chain saw system according to claim 15, characterized in that The chain saw includes a lubricant system.

19. The chain saw system according to claim 18, characterized in that The lubricant system includes an outlet port.

20. The chain saw system according to claim 19, characterized in that The protrusion is smaller than the outlet port.

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