The disclosure relates to a mechanism for feeding screws, in particular screws of various lengths from 1.25″ to 10″ in length and from #12 to #15 in diameter. Various tools, such as plate feeding tools, used in roofing applications for example, are used in connection with fasteners to attach the plates to a roofing structure.
Accordingly, there is a need to provide an improved mechanism for feeding screws to the tool while maintaining robust and reliable configurations.
According to one aspect of the disclosure, as fastener feed device is disclosed. The fastener feed device includes a guide tube, a feed tube, a plate feed actuator, a structural member, a slide roller, a latch, an actuation member, a shank stop lever, and a head stop lever. The feed tube is on one side of the guide tube. The feed tube is configured to receive a fastener. The feed tube includes an opening. The plate feed actuator is proximate the guide tube. The structural member is adjacent the plate feed actuator. The structural member includes a vertical slot. The slide roller is movable within the vertical slot of the structural member. The latch is connected to the plate feed actuator. The actuation member includes a head kicker portion, a latch slot, and a lever portion. The head kicker portion is received at the opening of the feed tube. The latch is configured to extend through the latch slot. The lever portion is proximate the slide roller. The shank stop lever is connected to the actuation member. The head stop lever is between the shank stop lever and the feed tube. The head kicker portion, the shank stop lever, and the head stop lever are configured to interact with the fastener.
According to another aspect of the disclosure, as fastener feed device is disclosed. The fastener feed device includes a guide tube, a feed tube, a plate feed actuator, a structural member, a slide roller, a latch, an actuation member, a shank stop lever, and a head stop lever. The feed tube is on one side of the guide tube. The feed tube is configured to receive a fastener. The feed tube includes an opening. The plate feed actuator is proximate the guide tube. The structural member is adjacent the plate feed actuator. The structural member includes a vertical slot. The slide roller is movable within the vertical slot of the structural member. The latch is connected to the plate feed actuator. The actuation member includes a head kicker portion, a latch slot, and a lever portion. The head kicker portion is received at the opening of the feed tube. The latch is configured to extend through the latch slot. The lever portion is proximate the slide roller. The shank stop lever is connected to the actuation member. The head stop lever is between the shank stop lever and the feed tube. The head kicker portion, the shank stop lever, and the head stop lever are connected to and configured to be controlled by a single lever portion of the actuation member.
According to another aspect of the disclosure, as fastener feed device is disclosed. The fastener feed device includes a guide tube, a feed tube, a plate feed actuator, a structural member, a slide roller, a latch, an actuation member, a shank stop lever, and a head stop lever. The feed tube is on one side of the guide tube. The feed tube is configured to receive a fastener. The feed tube includes an opening. The plate feed actuator is proximate the guide tube. The structural member is adjacent the plate feed actuator. The structural member includes a vertical slot. The slide roller is movable within the vertical slot of the structural member. The latch is connected to the plate feed actuator. The actuation member includes a head kicker portion, a latch slot, and a lever portion. The head kicker portion is received at the opening of the feed tube. The latch is configured to extend through the latch slot. The lever portion is proximate the slide roller. The shank stop lever is connected to the actuation member. The head stop lever is between the shank stop lever and the feed tube. The head kicker portion, the shank stop lever, and the head stop lever are configured to allow a head of an upside down fastener to remain between a first notch and a second notch of the head stop lever when the upside down fastener is in the feed tube.
Referring to
Referring now also to
The fastener feed device 100 includes a structural member 102, a plate feed actuator 104, a drive shaft 106, and a feed tube 108. The structural member 102, the plate feed actuator 104, and the drive shaft 106 are substantially parallel to each other and extend from a top end of clamshell housings 110, 112 which surround a lower stalk portion of the fastener feed device 100.
The fastener feed device 100 further comprises an upper tube mount 114 which supports the structural member 102 and provides mounting areas for a handle 116 and a driver adapter 118. According to some embodiments, the handle 116 may be an adjustable height handle (with an adjustable height range of six to twelve inches, for example). The driver adapter 118 is configured to be attached to a motorized driver and is aligned with an opening in the upper tube mount 114 which allows the drive shaft 106 to extend therethrough. According to some embodiments, the driver adapter 118 is configured to be removably attached to the motorized driver. In some other embodiments, the driver adapter 118 is configured to be fitted to the motorized driver just once. In yet further embodiments, any suitable attachment configuration between the driver adapter and the motorized driver may be provided. Additionally, and according to the various exemplary embodiments, the driver adapter 118 is configured to be removable from the upper tube mount (when required) along with the driver and the drive shaft.
According to various exemplary embodiments, a middle tube mount 120 is provided for supporting the structural member 102, the plate feed actuator 104, and the feed tube 108 (see
Still referring to
The feed mechanism is operated in coordination with driving of a fastener in the guide tube 122. As mentioned above, the screw feed device is incorporated into a fastener driving tool that also feeds plates that are fastened to a roof structure by the fasteners. The plate feed actuation rod 104 includes a pair of arms 124, 126 that project laterally to engage linkages that operate the plate feed mechanism (see
Referring now also to
In this position, the shank stop lever 144 is engaged with the shank of the upper fastener (with spring 150 providing a force towards the fastener), and the head kicker portion 138 is engaged with the head of the lower fastener (such that the head of the lower fastener will disengage from the tip of the upper fastener to ensure the lower fastener actually drops/releases [see arrow 152] when intended). Additionally, in this position, the head stop lever 146 is disengaged (and a pin 154 and slot 156 connection between the head stop lever 146 and the actuation member 128 provides for appropriate motion).
Also in this position, the lever portion 136 of the actuation member 128 is in contact with a vertical slide roller 158. Spring 160 biases the actuation member in a clockwise direction (about the pivot point) when viewed from the perspective of
A full drive latch 162 is also provided with a pivotable connection to the middle tube mount 120 (best seen in
Referring now to
Referring now also to
When the operator has completed pressing down on the handle 116 and releases the applied force, the vertical slide roller 158 returns towards the top of the slot and applies a force (in direction 180) to pivot the actuation member 128 back to the top of travel position (see
Technical effects of any one or more of the exemplary embodiments also provide functionality to prevent additional fastener feeding when an upside down fastener is inserted into the feed tube. Inadvertent insertion of an upside down fastener into the feed tube can result in a serious jam of the fastener feeding device. This can be a problem in the field during use as a jam in the device leads to unwanted tool down time due to corrective maintenance (i.e. clearing of the jam). An instance of an upside down fastener in the feed tube is shown by way of
Referring now also to
In
In
Referring now to
When the tool retracts and returns back to the top of travel position (see
When the “upside down” fastener is in the feed tube as shown in
As can be seen in the sequence of
Technical effects of any one or more of the exemplary embodiments provide a fastener feed device with three components that interact with the fasteners (through an opening along a lateral side of the feed tube) to feed single fasteners to the nose piece. Additional technical effects of any one or more of the exemplary embodiments provide a fastener feed device where three components that interact with the fasteners are connected to and controlled by a single actuation lever. Further technical effects of any one or more of the exemplary embodiments provide a fastener feed device where the feed device is controlled by an actuation lever that interacts with both a telescoping structure of the installation tool and a plate feed actuator separate from the telescoping structure of the installation tool.
It should be understood that components of the various exemplary embodiments can be operationally coupled or connected and that any number or combination of intervening elements can exist (including no intervening elements). The connections can be direct or indirect and additionally there can merely be a functional relationship between components.
Below are provided further descriptions of various non-limiting, exemplary embodiments. The below-described exemplary embodiments may be practiced in conjunction with one or more other aspects or exemplary embodiments. That is, the exemplary embodiments of the invention, such as those described immediately below, may be implemented, practiced or utilized in any combination (e.g., any combination that is suitable, practicable and/or feasible) and are not limited only to those combinations described herein and/or included in the appended claims.
In one exemplary embodiment, a fastener feed device comprising: a guide tube; a feed tube on one side of the guide tube, wherein the feed tube is configured to receive a fastener, and wherein the feed tube comprises an opening; a plate feed actuator proximate the guide tube; a structural member adjacent the plate feed actuator, wherein the structural member comprises a vertical slot; a slide roller movable within the vertical slot of the structural member; a latch connected to the plate feed actuator; an actuation member comprising a head kicker portion, a latch slot, and a lever portion, wherein the head kicker portion is received at the opening of the feed tube, wherein the latch is configured to extend through the latch slot, and wherein the lever portion is proximate the slide roller; a shank stop lever connected to the actuation member; and a head stop lever between the shank stop lever and the feed tube; wherein the head kicker portion, the shank stop lever, and the head stop lever are configured to interact with the fastener.
A fastener feed device as above, wherein the plate feed actuator is on an opposite side of the guide tube, and wherein the plate feed actuator is between the guide tube and the structural member.
A fastener feed device as above, wherein the actuation member includes a general “U” shaped channel.
A fastener feed device as above, wherein the shank stop lever is pivotably mounted to the actuation member.
A fastener feed device as above, wherein the head stop lever is pivotably mounted to a middle tube mount of the fastener feed device.
In another exemplary embodiment, a fastener feed device comprising: a guide tube; a feed tube on one side of the guide tube, wherein the feed tube is configured to receive a fastener, and wherein the feed tube comprises an opening; a plate feed actuator proximate the guide tube; a structural member adjacent the plate feed actuator, wherein the structural member comprises a vertical slot; a slide roller movable within the vertical slot of the structural member; a latch connected to the plate feed actuator; an actuation member comprising a head kicker portion and a latch slot, wherein the head kicker portion is received at the opening of the feed tube, wherein the latch is configured to extend through the latch slot, and wherein the actuation member is proximate the slide roller; a shank stop lever connected to the actuation member; and a head stop lever between the shank stop lever and the feed tube; wherein the head kicker portion, the shank stop lever, and the head stop lever are connected to and configured to be controlled by a single lever portion of the actuation member.
A fastener feed device as above, wherein the plate feed actuator is on an opposite side of the guide tube, and wherein the plate feed actuator is between the guide tube and the structural member.
A fastener feed device as above, wherein the actuation member includes a general “U” shaped channel.
A fastener feed device as above, wherein the shank stop lever is pivotably mounted to the actuation member.
A fastener feed device as above, wherein the head stop lever is pivotably mounted to a middle tube mount of the fastener feed device.
In another exemplary embodiment, a fastener feed device comprising: a guide tube; a feed tube on one side of the guide tube, wherein the feed tube is configured to receive a fastener, and wherein the feed tube comprises an opening; a plate feed actuator proximate the guide tube; a structural member adjacent the plate feed actuator, wherein the structural member comprises a vertical slot; a slide roller movable within the vertical slot of the structural member; a latch connected to the plate feed actuator; an actuation member comprising a head kicker portion and a latch slot, wherein the head kicker portion is received at the opening of the feed tube, wherein the latch is configured to extend through the latch slot, and wherein the actuation member is proximate the slide roller; a shank stop lever connected to the actuation member; and a head stop lever between the shank stop lever and the feed tube; wherein the head kicker portion, the shank stop lever, and the head stop lever are configured to allow a head of an upside down fastener to remain between a first notch and a second notch of the head stop lever when the upside down fastener is in the feed tube.
A fastener feed device as above, wherein when the upside down fastener is in the feed tube, the device is configured to cycle between compressed and retracted positions while the head of the upside down fastener remains between the first notch and the second notch of the head stop lever.
A fastener feed device as above, wherein the plate feed actuator is on an opposite side of the guide tube, and wherein the plate feed actuator is between the guide tube and the structural member.
A fastener feed device as above, wherein the actuation member includes a general “U” shaped channel.
A fastener feed device as above, wherein the shank stop lever is pivotably mounted to the actuation member.
It should be understood that the foregoing description is only illustrative of the various exemplary embodiments. Various alternatives and modifications can be devised by those skilled in the art without departing from the various exemplary embodiments. Accordingly, the various exemplary embodiments are intended to embrace all such alternatives, modifications and variances which fall within the scope of the appended claims.
This application claims priority to U.S. Provisional Application No. 63/126,243, titled Fastener Feeding Device For Driving Tool, filed on Dec. 16, 2020, the entire content of which is incorporated herein by reference.
Number | Date | Country | |
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63126243 | Dec 2020 | US |