WO2012030289A1

WO2012030289A1 - Adjustable mounting bracket for a saw

Info

Publication number: WO2012030289A1
Application number: PCT/SE2011/051048
Authority: WO
Inventors: Andreas JÖNSSON; Anders Lindqvist; Klas Mattsson
Original assignee: Husqvarna Ab
Priority date: 2010-08-31
Filing date: 2011-08-31
Publication date: 2012-03-08

Abstract

A track mounting bracket (130) is presented. The track mounting bracket (130) can included at least one first member (132) and at least one second member (134). The at least one first member (132) has at least one tab (135) at one end and extending from the at leastone first member (132). The at least one second member (134) having at least one tab (135) at one end and extending from the at least one second member (134), with the at least one first member (132) and the at least one second member (134) pivotally coupled together. The tabs (135) of the at least one first member (132) and the at least one second member (134) are configured for engagement with at least one track (112), wherein the tabs (135) are insertable into a receiving portion (113) of the at least one track (112) when the tabs (135) are pivoted towards each other and are in a track engaged position when the tabs (135) are pivoted away from each other.

Description

ADJUSTABLE MOUNTING BRACKET FOR A SAW

Field This disclosure is directed towards a mounting bracket for a saw.

Background

Moveable machining equipment is typically large and difficult to maneuver pieces of equipment. Wall saws are an example of movable machining equipment. Wall saws can typically include with a disc-shaped blade, which is securable on a to-be-cut wall and is designed for cutting stone and the like. For example, wall saws can be used in a construction industry to cut out an opening in a wall in several offset steps by separating appropriate wall pieces. The to-be-cut wall can be a wall of a room, a ceiling, or the floor. In some implementations, the wall saw can be incorporated into a transport mechanism that drives the wall saw across the to-be-cut wall, so that the transport mechanism and the wall saw mechanisms are effectively integrated into a single unit. In some implementations, the wall saw can be a separate mechanism from the transport mechanism. For example, wall saws can be coupled to a track to provide a controlled movement of the wall saw to cut through the to -be -cut wall.

Brief Description of Figures Exemplary methods and arrangements conducted and configured according to the advantageous solutions presented herein are depicted in the accompanying drawings wherein:

FIG. 1 is an exemplary wall saw having the mounting brackets of the present disclosure, and being mounted on a first embodiment of a wall saw trolley; FIG. 2 is perspective view of the track bracket of the present disclosure in removed sate from the track; FIG. 3 is a perspective view of the track bracket of the present disclosure in an installed configuration in the track;

FIG. 4 is a perspective view from below of the track bracket of the present disclosure including an optional control handle. FIG. 5 is a perspective view from below of a second embodiment of the track bracket.

FIG. 6 is a perspective view from above of the track bracket of fig. 5.

FIG. 7 is a cross section through the longitudinal centre of the track bracket of fig. 5 and 6.

FIG. 8 is a perspective view from a front left position of the second embodiment of a wall saw trolley. FIG. 9 is a perspective view from a front right position of the second embodiment of a wall saw trolley with a mounted wall saw.

Detailed Description

As will be appreciated for simplicity and clarity of illustration, where appropriate, reference numerals have been repeated among the different figures to indicate corresponding or analogous elements. In addition, numerous specific details are set forth in order to provide a thorough understanding of the implementations described herein.

However, those of ordinary skill in the art will understand that the implementations described herein can be practiced without these specific details. In other instances, methods, procedures and components have not been described in detail so as not to obscure the related relevant feature being described. Also, the description is not to be considered as limiting the scope of the implementations described herein.

The present disclosure is directed towards a mounting bracket. While the mounting bracket is described herein in relation to a wall saw, the mounting bracket can be directed to other saws having a track on which the saw motor traverses a portion of the length thereof. The mounting bracket is described herein as a track mounting bracket as it is configured to mount a track to another object such as a wall. In other embodiments, the track mounting bracket can be configured to mount the track to another machine or the like.

A track mounting bracket is presented in the present disclosure. The track mounting bracket can be included as part of a track system or a wall saw among other devices. The track mounting bracket can be implemented on any machine that requires temporary coupling to another device or surface. The track mounting bracket includes at least one first member and at least one second member. The at least one first member has at least one tab at one end and extending from the at least one first member. The at least one second member having at least one tab at one end and extending from the at least one second member, with the at least one first member and the at least one second member pivotally coupled together. In the examples presented below, there is only one first member and one second member, but the present disclosure contemplates the inclusion of a plurality of first members and a plurality of second members arranged according to the present disclosure. The tabs of the at least one first member and the at least one second member are configured for engagement with at least one track of a wall saw, wherein the tabs are insertable into a receiving portion of the at least one track when the tabs are pivoted towards each other and are in a track engaged position when the tabs are pivoted away from each other.

Also a wall saw trolley for transporting and/or mounting a wall saw is presented, the trolley comprising: a frame having at least two wheels to which frame the wall saw unit with track and at least one track mounting bracket can be secured as one unit such that the unit with track can be positioned against a wall or floor and fastened to it by securement of at least one track mounting bracket and thereafter be released from the trolley. a handle for moving the trolley by an operator.

The examples as described below present optional components for use with the track mounting bracket and the wall saw trolley as described herein and one or more components of the track mounting bracket and the wall saw trolley can be implemented. As mentioned above, the track mounting bracket can be configured for use with a wall saw. Examples of a wall saw including the track mounting bracket and wall saw trolley as described herein are illustrated in FIG. 1 , 8 and 9. The wall saw 100 can include one or more of the components as illustrated and described herein. The wall saw 100 includes a saw unit 110. The saw unit 110 includes a drive motor and other driveline components such as gears, saw head coupling mechanisms and the like. As illustrated a handle is provided on the saw unit 1 10. The handle allows the saw unit 110 to be manipulated by the operator in placing the saw on a track 112, that is an essential part of the wall saw. Additionally, the handle of the wall saw unit can be used by the operator to transport the saw unit 110 when it is separate from the wall saw 100. The wall saw unit 1 10 is attached to the track 1 12 and is attached to the wall saw trolley as one unit. The special trolley has a wheeled frame 170 to which the wall saw with track is secured as one unit, so it can be easily transported and even be positioned against a wall or floor and fastened to it by securement of at least one track mounting bracket and thereafter be released from the wheeled frame 170. In a first embodiment according to fig. 1 the track in fact forms an important substantially vertical part of the trolley, so the trolley does not need a separate vertical structure, which saves weight and facilitates securement of the wall saw to a wall or floor. In the first case the trolley is pushed backwards towards the wall, and in the latter case the trolley is tilted appr. 90 degrees around its wheels, so the track runs above the floor and the trolley is preferably also suspended by wheels on handle 140.

The track 1 12 on which the saw unit 110 is mounted also has track mounting brackets 130 attached to the rear thereof. The track mounting brackets 130 will be illustrated and described in further detail below. The track mounting brackets 130 enable an operator to position the wall saw 100 against a wall or floor and fasten the track mounting brackets 130 to the wall or floor. The securement of the track mounting brackets 130 to the wall or floor in turn secures the wall saw 100 through the coupling of the track mounting brackets 130 to the track 1 12 which in turn the saw unit 110 is coupled thereto.

The wall saw 100 also includes a blade guard 120. The blade guard 120 protects the operator and others near the wall saw from debris and other dangers associated with a rotating blade. The blade guard 120 can be changed out depending on the size of the cutting blade. For example, a given wall saw 100 can be configured for use with four or five different blade diameters. In at least one embodiment, the blade guard 120 is sized in dependence upon the selection of a particular blade diameter.

In order for the saw unit 1 10 to operate, the wall saw 100 can include a power pack 150 and a remote control protective box 160, normally containing a remote control 182, compare fig.9. The power pack 150 can be specifically designed to accommodate electrical or hydraulic saw units 1 10. For example, the power pack 150 can be a hydraulic power pack whereby electric power is turned into hydraulic power by the power pack. The remote control unit 160 can be configured to be operated by an operator at a distance away from the wall saw 100. This distance may be necessary depending on the environment in which the wall saw 100 is operated. Additionally, the illustrated embodiment includes a saw frame 170 for transporting the wall saw 100. As shown the saw frame includes wheels and a frame in which the power pack 150 is mounted. The remote control unit 160 can also be mounted thereon. The track 1 12 can be affixed to the frame via a frame track coupling mechanism. Additionally, a track handle 140 is provided. The track handle 140 can be configured to be removably coupled to the track 1 12 like the track mounting brackets as described herein. The track handle 140 can be placed on the track 1 12 at a desired distance. Additionally, the track handle 140 as illustrated includes wheels which allow for the wall saw 100 to be positioned such that the track 112 is parallel to the ground or other horizontal surface rather than the vertical orientation as illustrated. In a second trolley embodiment as shown in fig. 8 and 9 the trolley has a wheeled frame 170 with 4 wheels, 171, 172, 173 and 174. As concerning the first trolley embodiment at least one track holding device 176 is arranged in an outer end of the trolley and enabling a vertical positioning of the track 1 12 on the trolley when the trolley is on a horizontal floor, the track holding device 176 having jaws 177 that can be clamped against two opposite sides of the track such that the track can be inserted sideways between the jaws and be clamped and undamped and be sideways withdrawn from the jaws. Preferably at least one track holding device 176 is supplemented by a support plate 178 arranged below the track holding device/s to be able to support the lower end of the track 112. Preferably the track holding device is arranged in a front part of the trolley and the handle 175 is arranged in a rear part of the trolley. Hereby the trolley can be pushed forwards up to a wall, so the at least one track mounting brackets 130 contacts, or nearly contacts, the wall. When positioning the wall saw on a floor the whole trolley is not tilted forwards. Instead preferably the at least one track holding device 176 and possible support plate 178 is/are arranged on a tiltable part of the frame 170 such that this tiltable part with track 1 12 and saw unit 110 can be tilted forwards until the track mounting brackets reach the floor. The tilt axle low down close to the floor in appr. the location of the bottom part of the support plate 178. Preferably at least two of the trolley wheels can be locked for rotation to facilitate this tilt, and of course the tilt could be spring assisted.

Preferably the trolley has individual stowage compartments for essentially all parts of a wall saw arrangement including a power pack 150 and a remote control protective box 160. These two can be inserted and taken away in a sepate direction, appr 90 degrees apart.

Therefore they can be handled separately from each other. As shown they are also held in place with quick release fasteners. Further there is a special location for an extension track 112' to be coupled to track 112 when needed. The trolley preferably has a special remote control 182 location arranged on the handle 175, and enabling easy operation of the remote control. So all parts of the wall saw arrangement have separate arranged locations on the trolley. So the complete wall saw can be delivered and transported on the trolley. Further the trolley gives an especially quick set up for operation. Under transport the remote control is of course better protected when in the remote control protective box 160.

FIG. 2 illustrates a track mounting bracket 130 and a track 1 12 according to the present disclosure. The track 112 may include additional components not illustrated for clarity. In at least one embodiment, the track mounting bracket 130 and track 1 12 form a track system for a saw motor, such as the one described above. The track 1 12 as illustrated has a channel 114 formed on the bottom of the track 1 12. The channel 114 as illustrated extends from a first end to a second end of the track 1 12. The channel 114 is configured to receive the track mounting bracket 130. When the track 1 12 includes a channel 1 14 that extends from the first end to the second end of the track 112, the track mounting bracket 130 can be positioned at a desired location on the track 1 12. The ability to place the track mounting bracket 130 at a desired location can be desirable as wall or other surface may restrict where the track mounting bracket 130 can be affixed. For example, the wall may at least one portion that extends beyond the normal surface. Additionally, components, such as electrical equipment, reinforcement bar, and the like, can be within the wall that restrict where the track mounting bracket 130 can be affixed.

The track mounting bracket 130 includes a first member 132 and a second member 134. The first member has a tab 135 at one end. The tab 135 extends from the first member 132. The second member 134 also has a tab 135 at one end. The tab 135 of the second member 134 also extends from the second member 134. The tabs 135 of the first member 132 and the second member 134 are configured for engagement with a track 1 12 of a wall saw 100. The tabs 135 are insertable into a receiving portion 1 13 of the track when the tabs are pivoted towards each other as illustrated in FIG. 2. The tabs 135 on the first member 132 and the second member 134 are illustrated as being semicircular in shape. The shape of the tabs 135 can be other shapes such as triangular, polygonal and the like. The corresponding channel 1 14 of the track has a corresponding shape for accepting the tabs 135. While in most embodiments, the shape of the channel 1 14 and the shape of the tabs will closely resemble one another, in other embodiments the channel 1 14 or tabs 135 can be shaped differently. Additionally, in at least one embodiment, the tab 135 of the first member 132 can have a different shape than that of the tab 135 of the second member 134. When the tabs 135 have different shapes, the channel 1 14 can likewise have different shapes. In at least one embodiment, the different shapes of the respective tabs 135 can accommodate a predetermined orientation of the track mounting member 130 with respect to the track 112.

In order to provide for a fastener 138 (an example shown in FIG. 4) to affix the track mounting bracket 130 to a wall or other surface, the first member or the second member 134 can include a fastener slot 133 for receiving a fastener 138 to releasably affix the track mounting bracket to the wall or other surface. As illustrated, the fastener slot 133 is on the first member 132.

Additionally, in the illustrated embodiment, the first member 132 is longer than the second member 134. The second member 134 includes two legs 139. In one embodiment, the two legs 139 are a single part. In another embodiment, the second member 134 can comprise two different parts, such that each leg 139 is separate from the other leg 139. The first member 132 and the second member 134 as illustrated are pivotally coupled at a position proximate the end having the tab 135 formed thereon. In at least one embodiment, the first member 132 or the second member 134 can include a pivoting member. The other member of the first member 132 or the second member 134 can then pivot about the pivoting member. In at least one configuration, the first member 132 or the second member 134 can further include a rotation control mechanism to limit the rotation of the respective member relative to the other member. In one embodiment, the rotation control mechanism includes a stop that prevents rotation of one of the first member 132 or the second member 134 beyond a predetermined position relative to the other member. Once the tabs 135 are inserted into the receiving portion 1 13 of the track 1 12, the tabs 135 can be pivoted away from each other such that the tabs 135 extend into the channel 1 14 of the track 112. An example of the tabs 135 in a track engaged position is illustrated in FIG. 3. When the tabs 135 are in the track engaged position, the track mounting bracket 130 can be held in position relative to the track 1 12 such that it resists movement. However, if the track mounting bracket 130 is in the wrong position, the tabs 135 of the track mounting bracket 130 can slidingly engage in the channel 1 14 such that the track mounting bracket 130 can be slid to a different position along the track 1 12 without removing the tabs from the channel 114 of the track 112, thereby accommodating adjustment along the channel. In order to allow for the adjustment, at least one of the first member 132 and the second member 134 is pivoted towards the other member and the first member 132 and second member 134 are slid along the channel 1 12. Alternatively, the tabs 135 can be removed from the channel 1 14 and the track mounting member 130 can be repositioned and the tabs 135 reinserted into the channel 114.

The track mounting bracket 130 also includes a biasing member that is configured to bias the tabs 135 of the first member 132 and the second member 134 in the track engaged position. An example of a biasing member 180 is illustrated in FIG. 4. The biasing member 180 as illustrated is a torsion spring. The biasing member 180 can be mounted on one of the first member 132 or the second member 134. In another embodiment, the biasing member can be coupled to the pivoting member 136. In at least one embodiment, a control handle 190 can be included on the track mounting bracket 130. As illustrated in FIG. 4, the control handle 190 extends from the second member 134. In other embodiments, the control handle 190 can extend from the first member 132 or both of the first member 132 and the second member 134. When the second member 134 is shorter than the first member 132 as illustrated, the force exerted by the biasing member can make it difficult to hold the second member 134 against the biasing force. The control handle allows for increased control over the second member 134. The control handle 190 rotates relative to the respective one of the first member 132 or the second member 134 depending on which one of the first member 132 or the second member 134 on which it is mounted.

In at least one embodiment, the control handle 190 can be configured such that it is extendable from a retracted position to an extended position as illustrated. In the extended position, the distance from a distal end of the control handle to one of the first member 132 or the second member 134 is increased. As described above, the increased distance allows the operator rotate the second member 134 with reduced force.

The control handle 190 comprises two coupling rods 191 and an end cap 193, wherein the coupling rods 191 are coupled to the second member 134 at a first end. In other embodiments, the two coupling rods 191 can be coupled to the first member 132 at the first end. The two coupling rods 191 are coupled to the end cap 193 at a second end. The first member 132 or the second member 134 can be configured for receiving the coupling rods 191 . As illustrated, receiving slots 192 are formed in the second member 134. Additionally, coupling rod stops 194 can be included to prevent the coupling rods 191 from extending beyond one of the first member 132 or the second member 134 to which the coupling rods 191 are affixed. The coupling rod stops 194 can be removable stops such as nuts.

FIG. 5 shows a second embodiment in perspective from below. It is very similar to the first embodiment, but at least one and preferably both of the first and second member 132, 134 has an outer support part 132", 134" made of a harder material, such as steel, compared to the material of the main part 132', 134'. As the main parts 132', 134' are often made of aluminium the harder material of the outer support parts 132", 134" are often made of steel, stainless steel or hardened steel. This harder material is more resistant to wear against a concrete wall or floor. Further it is more resistant to punches from e.g. a hammer. This is important as the track bracket is often punched sideways when a faster, e.g. a screw 138 is fairly hard secured through the fastener slot 133 and the position of the saw is adjusted or redone. FIG. 7 also shows the assembly of these different parts. The biasing member is arranged as a torsion spring 180 on centre shaft in a recess of the first member 132. This is favourable as this member can be much longer than the second member 134. The first member is arranged turned away from the cutting disc and can therefore be much longer.

Claims

CLAIMS What is claimed is:

1. A track mounting bracket (130) comprising: at least one first member (132) having at least one tab (135) at one end and extending from the at least one first member (132); at least one second member (134) having at least one tab (135) at one end and extending from the at least one second member (134), with the at least one first member (132) and the at least one second member (134) pivo tally coupled together; the tabs (135) of the at least one first member (132) and the at least one second member (134) are configured for engagement with at least one track (1 12) of a wall saw (100), wherein the tabs (135) are insertable into a receiving portion (1 13) of the at least one track (1 12) when the tabs (135) are pivoted towards each other and are in a track engaged position when the tabs (135) are pivoted away from each other.

2. The track mounting bracket (130) of claim 1, further comprising at least one biasing member (180) configured to bias the tabs (135) of the at least one first member (132) and the at least one second member (134) towards the track engaged position.

3. The track mounting bracket (130) of claim 2, wherein the at least one biasing member (180) is a torsion spring.

4. The track mounting bracket (130) of any one of claims 1-3, wherein the at least one biasing member (180) is mounted to one of the at least one first member (132) or the at least one second member (134).

5. The track mounting bracket (130) of any one of claims 1-4, wherein the at least one second member (134) and the at least one first member (132) are pivotally coupled at a position proximate to the end having the at least one tab (135) formed thereon.

6. The track mounting bracket (130) of any one of claims 1-5, wherein one of the at least one first member (132) or the at least one second member (134) further comprising at least one pivoting member (136).

7. The track mounting bracket (130) of of claim 5 or 6, wherein the first member (132) has one tab (135) and the second member (134) has one part on each side of the first member

(132) at the position proximate to the end where the two members are pivo tally connected to each other by a pivoting member (136) such as a bolt, the two parts of the second member (134) has one tab (135) each.

8. The track mounting bracket (130) of any one of claims 3-7, wherein the torsion spring (180) is arranged in the first member (132) and acting on the second member (134).

9. The track mounting bracket (130) of any one of claims 1-8, wherein at least one and preferably both of the first and second member (132, 134) has an outer support part (132", 134") made of a harder material, such as steel, compared to the material of the main part (132', 134').

10. The track mounting bracket (130) of claim 6, wherein the at least one biasing member (180) is coupled to the at least one pivoting member (136).

11. The track mounting bracket (130) of any one of claims 1-10, wherein one of the at least one first member (132) and the at least one second member (134) further comprise at least one rotation control mechanism.

12. The track mounting bracket (130) of claim 1 1 , wherein the at least one rotation control mechanism includes at least one stop to prevent rotation of one the at least one first member (132) or the at least one second member (134) beyond a predetermined position relative to the at least one other member.

13. The track mounting bracket (130) of any one of claims 1 -12, further comprising at least one control handle (190) extending from one of the at least one first member (132) or the at least one second member (134), wherein the at least one control handle (190) rotates relative to the respective one of the at least one first member (132) or the at least one second member (134).

14. The track mounting bracket (130) of claim 13, wherein the at least one control handle (190) extends from a retracted position to an extended position wherein the distance from a distal end of the at least one control handle (190) to the one of the at least one first member (132) or the at least one second member (134) is increased.

15. The track mounting bracket (130) of claim 13, wherein the at least one control handle

(190) comprises at least two coupling rods (191) and an end cap (193), wherein the at least two coupling rods (191) are coupled to one of the at least one first member (132) or the at least one second member (134) at a first end and coupled to the end cap (193) at a second end.

16. The track mounting bracket (130) of claim 15, wherein the at least one first member (132) or the at least one second member (134) configured for receiving the coupling rods

(191) includes receiving slots (192) formed therein.

17. The track mounting bracket (130) of claim 16, further comprising a plurality of coupling rod stops (194) affixed to the first end of each respective coupling rod (191) to prevent the at least two coupling rods (191) from extending beyond the one of the at least one first member (132) or the at least one second member (134).

18. The track mounting bracket (130) of any one of claims 1 -17, wherein the tabs (135) on the at least one first member (132) and the at least one second member (134) are semicircular in shape.

19. The track mounting bracket (130) of any one of claims 1-18, wherein one of the at least one first member (132) or the at least one second member (134) comprise at least one fastener slot (133) for receiving at least one fastener (138) to releasably affix the track mounting bracket (130) to a wall.

20. A track system for a saw motor comprising: at least one a track bracket (130) according to any one of claims 1 -19; and at least one a track (1 12) having at least one channel (1 14) formed on the bottom, the at least one channel (1 14) extending from a first end to a second end and the at least one channel (114) configured to receive the tabs (135) of the at least one first member (132) and the at least one second member (134).

21. The track system of claim 20, wherein the at least one first member (132) and the at least one second member (134) are slidingly engaged in the at least one channel (1 14) and adjusted along the at least one channel (114) by pivoting at least one of the at least one first member (132) and the at least one second member (134) towards the other member and sliding the at least one first member (132) and the at least one second member (134) along the at least one channel (1 14).

22. A wall saw trolley (169) for transporting and/or mounting a wall saw (100), the trolley comprising: a frame (170; 170) having at least two wheels (171, 172, 173, 174) to which frame the wall saw unit (1 10) with track (112) and at least one track mounting bracket (130) can be secured as one unit such that the unit with track can be positioned against a wall or floor and fastened to it by securement of at least one track mounting bracket and thereafter be released from the trolley. a handle (140; 175) for moving the trolley by an operator.

23. The wall saw trolley (169) of claim 22, wherein at least one track holding device (176) is arranged in an outer end of the trolley and enabling a vertical positioning of the track

(1 12) on the trolley when the trolley is on a horizontal floor, the track holding device (176) having jaws (177) that can be clamped against two opposite sides of the track such that the track can be inserted sideways between the jaws and be clamped and undamped and be sideways withdrawn from the jaws.

24. The wall saw trolley (169) of claim 23, wherein the at least one track holding device (176) is supplemented by a support plate (178) arranged below the track holding device/s to be able to support the lower end of the track (1 12).

25. The wall saw trolley (169) of claim 23 or 24, wherein the track holding device is arranged in a front part of the trolley and the handle is arranged in a rear part of the trolley.

26. The wall saw trolley (169) of any of claims 22-25, wherein the trolley has individual stowage compartments for essentially all parts of a wall saw arrangement including a power pack (150) and a remote control protective box (160).

27. The wall saw trolley (169) of claim 26, wherein the trolley has a special remote control (182) location arranged on the handle (175), and enabling easy operation of the remote control.

28. A wall saw comprising: a saw motor mounted to the track system according to any one of claims 20-21.

29. The wall saw of claim 28 further comprising the wall saw trolley (169) according to any one of claims 22-27.