Tool holder with tabs and/or suction cups
09649762 ยท 2017-05-16
Assignee
Inventors
Cpc classification
B25H3/00
PERFORMING OPERATIONS; TRANSPORTING
International classification
Abstract
A tool holder has a sleeve member with a generally cylindrical sidewall, an open end and a closed end. The sleeve member is adapted to receive the non-working end of a tool inserted along a central longitudinal axis into the open end. A connector is coupled to the closed end of the sleeve member. The sleeve member has at least one tab extending axially away from an open end of the sidewall and/or at least one suction cup on an inside surface of the sidewall.
Claims
1. A tool holder comprising: a sleeve member having a generally cylindrical sidewall with an open end and a closed end and made of a flexible and resilient material, wherein the sleeve member is adapted to receive a non-working end of a hand tool inserted into the open end along a central longitudinal axis; a tether connector coupled to the closed end of the sleeve member; and at least one feature made of a flexible and resilient material selected from the group consisting of (i) at least one tab having a body portion connected to the open end of the generally cylindrical sidewall and extending to a foot portion connected to the body portion, wherein the tab extends away from both the open end and the closed end of the sidewall in a direction generally parallel to the central longitudinal axis, and (ii) at least one suction cup on an inside surface of the sidewall.
2. The tool holder of claim 1, wherein the closed end of the sleeve member defines an end opening therethrough and the tool holder further comprises: a connector assembly comprising: a disk member having a substantially planar face sized to abut an inside surface of the closed end of the sleeve member; a shaft extending perpendicularly from the substantially planar face and extending axially through the end opening of the sleeve member; and a cap member retained on the shaft wherein the tether connector is engaged with the cap member.
3. The tool holder of claim 2, wherein the tether connector is configured to rotate about the central longitudinal axis of the sleeve member and configured to rotate about a pivot axis extending transversely to the central longitudinal axis.
4. A tool holder comprising: a sleeve member having a generally cylindrical sidewall with an open end and a closed end, wherein the sleeve member is adapted to receive a non-working end of a hand tool inserted into the open end along a central longitudinal axis and wherein the closed end of the sleeve member defines an end opening therethrough; a tether connector coupled to the closed end of the sleeve member; at least one feature selected from the group consisting of (i) at least one tab extending away from the open end of the sidewall in a direction generally parallel the central longitudinal axis, and (ii) at least one suction cup on an inside surface of the sidewall; and a connector assembly comprising: a disk member having a substantially planar face sized to abut an inside surface of the closed end of the sleeve member; a shaft extending perpendicularly from the substantially planar face and extending axially through the end opening of the sleeve member; and a cap member retained on the shaft wherein the tether connector is engaged with the cap member; wherein the tether connector is a connector ring having a first end and a second end aligned with one another and separated by a predefined distance, the first end having an enlarged first-end portion and the second end having an enlarged second-end portion and wherein the cap member has a cap aperture extending axially therethrough, a top surface, and a bottom surface, the bottom surface defining a pair of tether connector recesses opposite the cap aperture and each sized to at least partially receive the enlarged first-end portion and the enlarged second end-portion, respectively, of the tether connector; and the connector assembly further comprising an upper disk member with a centrally-located opening therethrough and sized to receive the shaft, the upper disk member being disposed on the shaft wherein the upper disk member has a top surface defining an annular recess wherein the cap member is rotatable about the shaft with the first end and the second end of the tether connector each disposed between the respective tether connector recess and the annular recess of the upper disk member.
5. The tool holder of claim 4, wherein the shaft is a split shaft having a catch surface extending radially from the shaft at a head portion, wherein the catch surface engages the top surface of the cap member.
6. The tool holder of claim 2, wherein the connector assembly is coupled to the sleeve member with a feature selected from the group consisting of a nut threaded onto the shaft, a retaining ring installed on the shaft, a snap fit with a catch surface on the shaft to the sleeve member, an opening through the shaft and a connector extending through the opening, and an enlargement on the shaft that abuts an outside surface of the closed end of the sleeve member.
7. The tool holder of claim 1, wherein an inside surface of the closed end is concave.
8. The tool holder of claim 1, wherein an inside surface of the sidewall tapers in a range of about 1 degree to about 2 degrees from the open end to the closed end relative to the central longitudinal axis of the sleeve member.
9. The tool holder of claim 1, wherein the sleeve member has two tabs spaced about 180 from one another when the at least one feature is the at least one tab.
10. The tool holder of claim 1, wherein the at least one tab does not extend radially beyond an outermost surface of the sleeve member when the at least one feature is the at least one tab.
11. The tool holder of claim 1, wherein the at least one tab has a foot portion that extends transversely outward from a body portion when the at least one feature is the at least one tab.
12. The tool holder of claim 1, wherein the at least one feature includes both the at least one tab and the at least one suction cup.
13. The tool holder of claim 11, wherein the body portion decreases in width from the open end of the side wall to the foot portion.
14. The tool holder of claim 1, wherein the at least one feature is the at least one suction cup and wherein the at least one suction cup includes a plurality of suction cups spaced from one another and distributed about the inside surface of the sleeve member.
15. The tool holder of claim 14, wherein the plurality of suction cups are evenly distributed.
16. A method of securing a hand tool to a tether comprising: providing a tool holder comprising: a sleeve member having a generally cylindrical sidewall with an open end and a closed end and made of a flexible and resilient material, wherein the sleeve member is adapted to receive a non-working end of a hand tool inserted along a central longitudinal axis of the sleeve member into the open end; a tether connector coupled to the closed end of the sleeve member; and at least one feature made of a flexible and resilient material selected from the group consisting of (i) at least one tab having a body portion connected to the open end of the generally cylindrical sidewall and extending to a foot portion connected to the body portion, wherein the tab extends away from both the open end and the closed end of the sidewall in a direction generally parallel the central longitudinal axis, and (ii) at least one suction cup on an inside surface of the sidewall; inserting the non-working end of the tool into the open end of the sleeve member a distance sufficient to establish a frictional grip between the sleeve member and the tool; and connecting a first end of the tether to the tether connector.
17. The method of claim 16 further comprising pulling the at least one tab radially away from the non-working end of the tool when the at least one feature is the at least one tab to minimize the frictional grip between the sleeve member and the tool until the sleeve member is seated onto the hand tool.
18. The method of claim 16 further comprising pulling the at least one tab, when the at least one feature is the at least one tab, axially in the direction of the hand tool to attain the sufficient distance of engagement onto the hand tool.
Description
BRIEF DESCRIPTION OF THE DRAWINGS
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DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT
(10) The preferred embodiments of the present invention are illustrated in
(11) Sleeve member 120 preferably has an optional rim 132 at open end 126. Rim 132 is a portion of sleeve member 120 that protrudes radially outward from outside surface 136 of sleeve member 120. In one embodiment, rim 132 is formed by a region of increased thickness at open end 126. Rim 132 minimizes tearing of sleeve member 120 when being stretched over a tool handle or when being removed from a tool handle. Rim 132 also provides an edge for the user to grasp when adjusting the fit of or removing sleeve member 120 from a tool handle.
(12) In one embodiment, sleeve member 120 has a plurality of ribs 134 extending axially between open end 126 and closed end 128. Preferably, ribs 134 extend from rim 132 to closed end 128. Ribs 134 provide rigidity to sleeve member 120 and reduce twisting of sleeve member 120 when subjected to torsional forces.
(13) Turning now to
(14) Sidewall 122 has a wall thickness T1 between outside surface 136 and inside surface 138. In one embodiment, wall thickness T1 is substantially the same from rim 132 to closed end 128 (excluding ribs 134 and rim 132). In another embodiment, wall thickness T1 tapers slightly from closed end 128 to open end 126 (excluding ribs 134 and rim 132). A tapered wall thickness T1 makes sleeve member 120 more pliable towards open end 126 and less pliable towards closed end 128. A difference in pliability makes sleeve member 120 easier to install or remove from a tool handle due to the ability to more easily stretch or deform sleeve member 120 towards open end 126. Where wall thickness T1 is greater towards closed end 128, the reduced pliability at closed end 128 provides for a stronger grip on tool 300 (shown in
(15) Closed end 128 has an end thickness T2 between outside surface 136 and inside surface 138. In one embodiment, end thickness T2 is greater than wall thickness T1. In one embodiment, inside surface 138 at closed end 128 is concave to more snugly fit to a rounded end of a tool handle. Optionally, an eyelet or connector tab (not shown) is formed integrally with sleeve member 120 and connected on outside surface 136 of closed end 128.
(16) In one embodiment, closed end 128 defines an end aperture 140 extending axially through closed end 128. End aperture 140 is preferably centrally located or centered on central longitudinal axis 124 but may optionally be positioned off-center of closed end 128. When sleeve member 120 has end aperture 140, sleeve member optionally defines an end recess 142 with a recess depth 144 into inside surface 138 of closed end 128. End recess 142 provides a seat for a disk member 210 of connector assembly 200, which is shown in
(17) Sleeve member 120 may optionally include one or more suction cups 144 on inside surface 138.
(18) Turning now to
(19) Turning now to
(20) In one embodiment, disk member 210 is a round plate with a disk thickness T4 between a bottom surface 212 and a substantially planar top face 214. Top face 214 is preferably substantially featureless and is sized to engage inside surface 138 of closed end 128 of sleeve member 120 (shown in
(21) In one embodiment, shaft 220 has a cylindrical shaft body 222 extending along a shaft axis 221 with a shaft head 224 at one end, and a bushing 226 on shaft body 222 a predefined distance from top face 214 of disk member 210. Shaft head 224 is preferably a split head having a transverse slot 227 extending axially into shaft head 224 and, in some configurations, also into shaft body 222. Shaft head 224 preferably has a domed shape to facilitate insertion through openings and to cause compression of a split shaft head 224. In one embodiment, shaft head 224 has at least one catch surface 224a that extends radially outward from shaft body 222. The split-head configuration and catch surface 224a enables a snap fit where shaft head 224 compresses during insertion through an opening of slightly smaller diameter and then expands to its uncompressed shape after passing through the opening. After returning to its uncompressed shape, catch surface 224a engages the material around the opening to prevent shaft 220 from passing back through the opening in the opposite direction. In one embodiment, bushing 226 is positioned along shaft body 222 so that it is forcibly pushed through end aperture 140 and positioned against the outside surface 136 of end aperture 140 (shown in
(22) In another embodiment, shaft 220 is retained in position relative to cap member 240, upper disk member 230, and/or disk member 210 by way of an E-ring, cotter pin, retaining ring, or other retaining device (not shown) installed on shaft 220.
(23) In one embodiment, upper disk member 230 has a generally flat, round shape with a bottom surface 230a, a top surface 230b, and centrally-located upper disk opening 232 extending therethrough along a central axis 231 of upper disk member 230. Preferably, central axis 231, shaft axis 221, and central longitudinal axis 124 are the same axis. Located radially between upper disk opening 232 and an outside edge 234 is an annular recess 236 formed axially into top surface 230b. Annular recess 236 is sized to receive ends 256 of tether connector 250 and permit tether connector 250 to rotate about central axis 231 with ends 256 partially received therein. Tether connector 250 is discussed in more detail below. In one embodiment, upper disk opening 232 is sized to receive shaft 220 with bushing 226 disposed within upper disk opening 232. In another embodiment, a bottom surface recess 235 (not visible; shown in
(24) An axial cross-section of cap member 240 is illustrated in a perspective view in
(25) In another embodiment, cap aperture 242 has a plurality of coaxial bores with different bore diameters 244, where the intersection between a first bore 242a (e.g., a smaller bore diameter 244a) with a second bore 242b (e.g., a larger bore diameter 244b) defines a bore shoulder 246 as more clearly shown in
(26) In yet another embodiment, cap aperture defines at least one recess (not shown) formed or machined into a wall of cap aperture 242. An example of such a recess is a slot extending circumferentially (i.e. annularly) at least partially around cap aperture 242 and having a diameter greater than bore diameter 242. A slot or recess may be used, for example, when shaft has spring-biased ball or pin that is configured to extend from shaft 220 into the recess to retain cap member 240 on shaft 220.
(27) In one embodiment, cap member 240 has side openings 247 that each extend transversely (e.g., perpendicularly) into cap member 240 toward cap aperture 242 and central axis 231. Preferably, an entrance 248 to each side opening 247 is recessed into cap member 240 and shaped to permit rotation of tether connector 250 about side openings 247. One example of entrance 248 is a countersink or conical hole machined or formed into cap member 240 at side openings 247. Another example of entrance 248 is one or more channels that intersect side opening 247 and extend transversely thereto. Such a channel may be made, for example, by machining or drilling into cap member 240 near side opening 247 at an angle transverse to side opening 247, where the channel intersects side opening 247. In one embodiment, entrance 248 has an upper channel 248a and at least one side channel 248b. Preferably, channels 248a, 248b receive tether connector 250 and provide a preferred stopping point for tether connector 250 as it rotates about side openings 247 due to cap member 240 causing ends 254 of tether connector 250 to separate slightly more at points of rotation between channels 248a, 248b. Thus, connector 250 preferably occupies one of channels 248a, 248b and snaps to these positions due to its preference to return to its non-expanded state when rotated to occupy a channel 248.
(28) In one embodiment, cap member 240 optionally has a ring-end recess 249 at an inside end 247a of one or both of side openings 247, where inside end 247a of side opening 247 is the end towards cap aperture 242. Ring-end recess(es) 249 extend axially into bottom surface 240a and define an open space in communication with side opening 247. Ring-end recess(es) 249 are sized and configured to accommodate an enlarged end 256 of tether connector 250 (discussed in more detail below). In one embodiment, ring-end recess 249 have a rectangular or arched cross-sectional shape as viewed from side opening 247 that permits insertion of enlarged end 256 of tether connector 250 in an axial direction from bottom surface 240a.
(29) In one embodiment, top surface 240b is domed. A domed top surface 240b reduces contact between a tether (400) or other line (shown in
(30) In one embodiment, cap member 240 includes a bore sidewall extension 243 extending around cap aperture 242 and extending axially from bottom surface 240a. In one embodiment, bore sidewall extension 243 abuts top surface 230b of upper disk member 230 between upper disk opening 232 and annular recess 236. In another embodiment, bore sidewall extension 243 is received in upper disk opening 232 to seat and position cap member 240 coaxially with upper disk member 230.
(31) Referring again to
(32) Referring now to
(33) Referring now to
(34) Referring now to
(35) In use, tool holder 100 is installed on the non-working end of a hand tool 300 with sleeve member 120 frictionally engaging and gripping hand tool 300. When sleeve member has suction cups 144, it additionally grips tool 300 due to suction cups 144 forming a vacuum seal with tool 300. Thus, tool holder 100 is securely retained on tool 300 and can be used, for example, as a retaining or safety device to prevent accidental drops of tool 300. The user clips, couples, or attaches a tether 400, lanyard, safety line, or connector to tether connector 250 coupled to closed end 128 of sleeve member 120. The opposite end (not shown) of tether 400 is then attached, for example, to the user's safety harness, a structure, a tool belt, or other item.
(36) To remove tool holder 100 from tool 300, the user breaks or reduces the grip between sleeve member 120 and tool 300 by pulling outward and/or upward (upward meaning axially away from hand tool 300) on one or more tabs 150. When tool holder 100 is not equipped with tabs 150, the user may instead grasp open end margin 152 and pull outward to break or reduce the grip between sleeve member 120 and tool 300.
(37) Although the preferred embodiments of the present invention have been described herein, the above description is merely illustrative. Further modification of the invention herein disclosed will occur to those skilled in the respective arts and all such modifications are deemed to be within the scope of the invention as defined by the appended claims.