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1. 发明授权

US5390842A Underpinning machine 失效
标题翻译：支架机
公开(公告)号：US5390842A
公开(公告)日：1995-02-21
申请号：US1465
申请日：1993-01-07
申请人： Walter A. J. Joyce
发明人： Walter A. J. Joyce
IPC分类号： B27F7/02 , B27F7/09 , B27F7/13 , B27F7/15 , B25C5/02
CPC分类号： B27F7/09 , B27F7/025 , B27F7/13 , B27F7/15
摘要： An underpinning machine includes a worktable (11) having a central recess (17) housing one or a pair of underpinning heads (20,21; 120). The or each head has a magazine (18,19) of V-nails or wedges associated with it. In a single head version, the underpinning head (120) is power driven between two stop positions and is capable of operation by a drive plate (27) power operated (28,29) from spaced pneumatic rams disposed below the worktable. In another embodiment, two underpinning heads (20,21) are both selectively positionable within the area of the drive plate (27). The operation of the drive plate therefore automatically operates the underpinning heads whatever their position relative to fixed guides (31,32) of the apparatus which locate framing members (42) to be underpinned. By having the underpinning head indirectly actuated by the drive plate (27), a compact and flexible apparatus is provided and in the twin head version the underpinning heads can be placed very close together since there is no interference between respective drive mechanisms.
摘要翻译：支撑机器包括具有容纳一个或一对支撑头（20,21; 120）的中心凹部（17）的工作台（11）。该头部或每个头部具有与其相关联的V形钉或楔形物的杂志（18,19）。在单头版本中，支撑头（120）在两个停止位置之间被动力驱动，并且能够由设置在工作台下方的间隔开的气动柱塞的动力操作（28,29）的驱动板（27）进行操作。在另一个实施例中，两个支架头（20,21）都可选择性地定位在驱动板（27）的区域内。驱动板的操作因此自动地操作支撑头，无论其相对于定位框架构件（42）被支撑的装置的固定引导件（31,32）的位置如何。通过由驱动板（27）间接驱动的支撑头，提供了紧凑且灵活的装置，并且在双头版本中，支撑头可以非常靠近地放置在一起，因为相应的驱动机构之间没有干涉。

2. 发明授权

US5269502A Clamping head assembly 失效
标题翻译：夹头组装
公开(公告)号：US5269502A
公开(公告)日：1993-12-14
申请号：US907395
申请日：1992-07-01
申请人： Walter A. J. Joyce
发明人： Walter A. J. Joyce
IPC分类号： B25B5/14 , B27F7/15 , B25B1/20
CPC分类号： B25B5/142 , B27F7/15
摘要： A clamping head assembly for clamping frame members in an underpinning machine includes a pair of clamping members each of which has upper and lower elements spring biased apart. The lower element carries a friction pad and is connected by a pin and slot connection or a parallelogram linkage to the upper element. Downward pressure on the clamping members causes slight longitudinal movement of the friction pad tending to pinch together the frame members at a mitre joint where they are held, for example, for underpinning.

3. 发明授权

US5244139A Magazine for loading fasteners in underpinning machines 失效
标题翻译：用于装载机器中的紧固件的杂志
公开(公告)号：US5244139A
公开(公告)日：1993-09-14
申请号：US907397
申请日：1992-07-01
申请人： Walter A. J. Joyce
发明人： Walter A. J. Joyce
IPC分类号： B25C5/16
CPC分类号： B25C5/1606
摘要： A magazine for V-nails for use in underpinning of picture frames receives a strip of V-nails secured together by heat-bonded non-adhesive synthetic plastic material through an opening of greater width than the V-nails. A pusher has a downwardly projecting tongue which is driven in the machine and has depending side walls at its forward end affording a contact point for pushing the V-nails at their center of gravity towards a pair of locating formations and the extreme forward end. A single V-nail which may be presented either point foremost or point rearmost is removed from the end of the strip in the underpinning operation, the magazine being cut away and the pusher being cut away to permit this operation. On return of the drive member, a cam firstly returns the pusher to a stop in the magazine and then lifts the magazine from its operative position to enable it to be removed or refilled.

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