JPS6368371A - Polisher device - Google Patents

Abstract

(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a grip type Vr polisher (hand polisher) and a propped polisher (ball polisher), and more particularly to a hand polisher that can be exchanged with each other. The present invention relates to a sander that includes a base structure as well as a bowl top structure and a ball polishing plate top structure, such that the same base structure can be used to make a hand sander or a pole sander.

[Conventional technology]

The pole sander with a support and the hand sander with a ridge are well known.

Pole sanders typically allow a flat sandpaper surface, which is usually fixed on the flat back of the sander, to be parallel to the wall or ceiling or floor surface against which this sandpaper is applied during the sanding operation. As in, a type of universal joint is used. In using a pole sander, the user generally holds the surface to be sanded at the other end of the post or vacuum handle, where the pressure of pressing the surface of the sandpaper against the surface or joint to be sanded is transmitted. is quite a distance away from. Although satisfactory in many cases, conventional pole sanders have several undesirable features that affect their functionality. The universal joint is often associated with the sandpaper retention means typically provided.
Acts as an obstacle to direct the handle or post as low and horizontally as possible to reach corners and the like. U.S. Patent Nos. 4,516,360 and 4,516,361
No. 1, No. 1, No. 1, No. 1, No. 1, No. 1, No. 1, No. 1, No. 1, 2003, discloses a pole sander with a universal joint that purports to eliminate this problem by providing a sloped guide ramp proximate to the universal joint. Additionally, the universal joint in the above patent uses what is referred to as a forced frictional engagement, thereby solving the problem of controlling the movement of the Vr grinder when the universal joint does not use such forced frictional engagement. It is said. Like most pole sanders, the patent uses a wire clip to hold the sandpaper.

[Problem that the invention seeks to solve]

Notwithstanding the advantages that the above-cited patent has over existing ball abrasive machines, the present invention, along with the pole abrasive machine of the above-mentioned patent, is superior to other pole abrasives and hand sanders currently on the market. It solves many problems associated with sanders.

[Means for solving problems]

The present invention relates to a sander device using sheet sandpaper. The sander device includes a two-piece housing structure having a molded base structure and a molded top structure. The base structure includes a substantially flat back surface facing away from the top structure. The top structure includes a handle mounting surface facing away from the base structure. A hinge means is integrally molded with the housing structure and hinges the base structure and the top structure together along the first side of the sander device, thereby connecting the sander device to the base structure and the top structure. It can be arranged in an open position where the base structure and the top structure are rotated apart and a closed position where the base structure and the top structure are rotated closer together.

Sandpaper retaining means are provided for removably retaining sandpaper on the rear surface of the base structure.

Latching means integrally molded with the housing structure are provided for releasably latching the base structure and top structure in their closed positions.

In a preferred embodiment of the invention, the top structure is interchangeable with other top structures, such that the top structure has a different handle arrangement on its surface. Can be done.

One of the top structures preferably includes a handle member integrally molded therewith.

In this preferred embodiment, the handle member extends longitudinally of the top structure and includes a central portion interconnected to the top structure and interconnected to downwardly extending ends. . This central portion is spaced apart from the top structure such that the user's hand is placed between the top structure and the central portion of the handle portion. Preferably, the central portion of the handle member includes a downwardly extending arcuate portion thereby providing a comfortable grip. It can be seen that this embodiment of the top structure is intended for use with a hand sander device.

Furthermore, the second of the top structures is preferably I
Il includes a long handle fitting or a handle joint assembly means for interconnecting the cleaner handle to the top structure. The handle joint assembly means includes a universal joint means attached to the top structure to allow the rear surface of the base structure to be positioned in a plurality of angular positions relative to the handle member. Preferably, the universal joint means includes a U-shaped member spanning the pin means of the top structure for rotation about a first axis. The free end of the U-shaped member defines spaced, aligned holes.

The handle joint assembly means includes a handle attachment means for attaching the same to the handle means.

The handle mounting means preferably includes pin means, the handle mounting means pivotally mounting the means within the aligned apertures of the U-shaped member, and the handle mounting means preferably including pin means, the handle mounting means pivotably mounting the means within the aligned apertures of the U-shaped member; for rotation about a second axis, the U-shaped member being elastically biased toward its rest position;
The U-shaped member is displaced from its rest position when pivotally attached to the pin means of the handle mounting means, thereby providing a frictional engagement between the U-shaped member and the handle mounting means.

Further, in one preferred embodiment, the handle attachment is such that the outer surface of the pin means of the means frictionally engages the inner surface defining the hole of the U-shaped member.

The present invention further relates to an instrument combination that includes a base structure and an interchangeable hand and ball sander so that the sander can be easily converted from a hand sander to a pole sander.

In a preferred embodiment, the pin means of the top structure is integrally molded into the top structure, and the pin means is concealed within the top structure to lower the area on which the handle member effectively presses, thereby preventing use. It is designed to increase the stability of the sander inside.

Additionally, one preferred embodiment of the present invention has a thin wall construction to provide a light sander. In addition to being lightweight, this sander includes a reinforcing structure so that it is strong and sturdy.

In a preferred embodiment of the invention, the top structural pin means includes an elongate pin member having four equally spaced and radially extending ribs that extend into the U-shaped member. Frictionally engaging the U-shaped member over a selected range of rotational movement of the U-shaped member. This special pin construction eliminates distortion and depression, making the pin easier to form.

Additionally, the top structure pin means is preferably an integral part of the top structure rather than a separate piece. The swivel joint and handle attachment, which are configured to facilitate push-fit (snap-fit) engagement with each other, facilitate assembly of the means.

In one preferred embodiment, the hinge means and latching means are integrally molded with the abrasive housing structure. Preferably, the latching means includes a resilient latching member integrally molded with one of the top structure and the base structure, the latching member being resiliently biased to the rest position. The latching member further includes a shoulder such that the shoulder engages the edge of the other of the top and base structures when in the rest position, and when pushed into the displaced position. It has become possible to deviate from this edge. This latching means is therefore “
A "push-open" push-fit (snap-fit) fixed lid is provided. The hinge means and the latching means securely secure the sandpaper in the correct position while allowing for easy replacement of the sandpaper. , these measures provide compatibility between two separate top structures: the hand abrasive layer top structure and the ball sander top structure.Thus, one base structure can be used with two different top structures, and the two Different separate devices can be formed.

In a preferred embodiment of the invention, the sandpaper retention means are integrally molded with the housing structure.

Additionally, the housing structure includes integrally molded alignment means to maintain longitudinal alignment of the sandpaper relative to the housing structure. Thus, in the preferred embodiment, the resilient pinch retaining device typically found in large) (2) sanders is omitted.

Preferably, the sander is 3 inches (76,21 m)
Width, users can use the standard 9" x 11" (22EI)
, 3 pieces of sandpaper (5 cranes x 279.4 m)
The length is such that it can be cut in half and does not produce sandpaper debris.

In yet another preferred embodiment of the invention, the central portion of the hand abrasive layer top structure under the handle is open and forms a barrier with the base structure, thereby trapping abrasive debris and providing a more convenient surface for the user's hand. Provide many locations.

It will be appreciated that this base and top structure does not require any cams during molding, resulting in faster molding and lower molding costs.

These and other advantages and novel structures which characterize the invention are pointed out with particularity in the claims. However, in order to better understand the advantages of the invention and the objects achieved by its use, reference should be made to the drawings and accompanying description which form a part hereof and which illustrate and describe preferred embodiments of the invention. It should be used as a reference.

DESCRIPTION OF THE PREFERRED EMBODIMENTS Referring now to the drawings, FIGS. 1 and 2 illustrate embodiments of a post sander 22 and a grip sander 24 generally in accordance with the principles of the present invention. These grip-type polishers (hand polishers) 24 and propped polishers (pole polishers) 22
Both include the same base structure 26. Hand sander 2 includes a hand abrasive layer top structure 30 and pole sander 22 includes a ball abrasive layer top structure 28.

The polishing tool 20 will now be described throughout this specification where pole sander 22 and hand sander 24 are commonly referred to. The hand abrasive layer top structure 30 and the pole abrasive layer top structure 28 are interchangeable on the base structure 26. In a preferred embodiment of the invention, base structure 26
, hand abrasive layer top structure 30, and ball abrasive layer top structure 28 are sold as a matching combination so that two abrasive tools can effectively be obtained from one instrument combination. Base structure 26 and top JR structure 2nd.

30 is preferably molded from plastic such as polyethylene. In a preferred embodiment, the base structure 2
6 and top structures 28, 30 are preferably molded as an integral unit of one piece. The base structure 26 includes a substantially flat back surface 40 facing away from the top structure 2B, 30. The top structure 2B, 30 and the handle attachment facing away from the base structure 26 also include a surface 42. Two spaced apart hinge members 44
Base structure 26 along first side 46 of Jf tool 20
is integrally molded into. The hinge 44 cooperates with the hole 45 in the top structure 28, 30 to permit rotation of the top structure 28, 30 relative to the base structure 26, as indicated by arrow 48 in FIG. The top structures are pivoted apart to an open position and coupled to a closed position.

Additionally, these hinges engage edges 50 of the top structures 28, 30 when the top structures 28, 30 are pivoted to the closed position and engage edges 50 of the top structures 28, 30 when the top structures 28, 30 are pivoted to the open position. It includes a shoulder portion +18 that deviates from the base structure 26, thereby allowing the top structure 28, 30 to be removed from the base structure 26. A latching member 52 includes a shoulder 56 integrally molded onto the base structure 26 along a second side 54 for engaging an edge 58 of the top structure 28 , 30 . A hole 55 is defined in the top structure and locks the latching member 5 when the sander 20 is rotated to its open position.
2 can pass through this hole 55. Latch member 52 is preferably resilient and is normally resiliently biased in its rest position so that it engages edge 58 when the sander is in its closed position. Polisher 2
To open the latching member 52, the latching member 52 is pushed inwardly toward the sander housing, thereby disengaging the shoulder 56 from the edge 58, thereby allowing the top structure 28° 30 to pivot to the open position. . As shown, in this preferred embodiment, the latching member includes a knurled surface 60.

As further shown, the sander 20 preferably includes a sandpaper retention member 62 integrally molded into the base structure 26 and a laterally extending barrier 64 for aligning the sandpaper 66.

When using the
Select 30. Sandpaper 66 is displaced inwardly from each end of base structure 26 with sandpaper alignment barriers 64
and is pierced by a total of four sandpaper holding members 62. The top structure is then pivoted to its closed position. The user then grasps the handle provided on the top surface of the selected top structure and begins normal operations.

As shown in FIG. 1, the pole abrasive layer top structure 28 includes a handle joining assembly 70 for interconnecting a handle member 72 to the top structure 2. As shown in FIG. This handle joint assembly includes a universal joint 7 attached to the top structure 28.
4, thereby allowing the rear surface 40 of the base structure 26 to be positioned in a plurality of angular positions relative to the handle member 72. In the preferred embodiment, the universal joint 74 includes a U-shaped member 76 that straddles a pin member 78 integrally molded into the top structure 28 for rotation about the first axis 73. The free end 80 of the U-shaped member 76 defines spaced and aligned holes 82. The handle interface assembly 70 further includes a handle attachment device 84 that is connected to the aligned holes 82 of the U-shaped member 76.
The handle attachment includes a pin member 86 for pivotally attaching the device 84, and the handle attachment allows the assembly to pivot about a second axis 75 perpendicular to the first axis, thereby allowing the handle member to rotate about a second axis 75 perpendicular to the first axis. 72 substantially free movements are obtained. In the illustrated embodiment, the handle mount assembly includes an internally threaded cylindrical receptacle that receives a handle member 72 with a threaded connection.

As shown in FIG. 6, U-shaped member 76 is preferably resiliently biased toward its rest position.

The resilient U-shaped member 76 is displaced from its rest position when the handle attachment is mounted on the pin member 86 of the device 84, as shown schematically by arrow 83 and phantom line 85, thereby causing the U-shaped member 76 A frictional engagement is obtained between the handle attachment and the device 84.

Additionally, in the preferred embodiment, pin member 86 frictionally engages an inner surface 90 of U-shaped member 76 defining six 82. In the preferred embodiment, the pin member is integrally molded with the container 88 and the U-shaped member 76 is separately molded.

In the preferred embodiment, the pin member 78 is preferably molded into the top structure 28 and the handle attachment is at the top surface 92 of the surface 42.
It is hidden inside the top structure 28 on the underside of the . Further, the pin member 78 preferably includes four equally spaced radially extending ribs 94 that frictionally engage the U-shaped member to control selected rotational movement of the U-shaped member 76. Frictional engagement of the U-shaped member 76 is obtained within the range. Similarly, ribs 94 are attached to the bottom surface 93 of the device and the U-shaped member 76.
frictionally engages with the bottom surface 95 of.

The top structure 30 of the hand sander 24 includes a handle portion 100 integrally formed with the top structure 30 as shown. The handle attachment 100 is depicted as extending longitudinally of the top structure 30 and includes a central portion 102 that interconnects with a downwardly extending end 104 that is connected to the top structure 30.

This central portion 102 is spaced apart from the top structure 30 such that the central portion 102 of the top structure 30 and the handle member 100
The user's hand can be placed between the two. In the illustrated preferred embodiment, handle member 100 includes a downwardly extending arcuate-shaped portion 106 to provide a comfortable grip. Additionally, in the preferred embodiment, the top structure 30 defines a recess 108 on the underside of the handle member 100 to provide additional space for the user's hands.

The top structure 30 cooperates with the base structure 26 to provide a barrier 110 around the recess for trapping any abrasive debris.

In one preferred embodiment, as shown, the polishing dish device has a thin-walled construction with an integrally molded reinforcing member 112 that provides a strong and sturdy polisher. In this preferred embodiment, a soft pliable backing material 114
is adhesively fixed to the back surface 40. This backing material 114 is made of rubber.

While many features and advantages of the present invention have been set forth in the foregoing description, as well as details of the structure and operation of the present invention, what has been disclosed herein is merely exemplary; Changes in structure may be made within the principles of the invention to the extent sufficient to be expressed in the broad general meaning of what is claimed in the claims.

[Brief explanation of drawings]

Like reference symbols and numbers refer to like parts throughout the drawings. 1 is a perspective view of an embodiment of a pole sander according to the principles of the invention; FIG. 2 is a perspective view of an embodiment of a hand sander according to the principles of the invention; FIG. 4 is an enlarged vertical sectional view of the embodiment shown in FIG. 1; FIG. 5 is a cross-sectional view of the embodiment shown in FIG. 1; and FIG. 6 is a U-shape according to the principles of the invention. 7 is a side view of an embodiment of the member showing its rest position and its displaced position is shown in phantom; FIG. 7 is a cross-sectional view of an embodiment of the hinge device according to the principles of the invention It is. 20... Polisher, 22... Pole polisher, 24... Hand '6JF polisher, 26... Base structure, 28... Pole polisher top structure, 30... Hand a electric appliance top part Structure, 40...Back surface, 42...Handle mounting surface, 44...Hinge, 46...First side surface, 4B, 56...Shoulder portion, 50, 5
8... Edge, 52... Latching member, 54... Second side surface, 55... Hole, 62... Sandpaper holding member, 64... Barrier, 66... Sandpaper, 70... Handle joint assembly, 72... Handle member, 74... Universal joint, 76
... U-shaped member, 80 ... Free end, 82 ...
・Hole, 84...Handle mounting device, 86
...pin member, 94...rib, lOO...
・Handle member, 102...Handle center part, 1
06... Arcuate portion, 108... Recess. Margin below

Claims (1)

[Claims] 1. An abrasive device for using a sheet of sandpaper, comprising: (a) a shaped base structure and a shaped top structure, the base structure being spaced apart from the top structure; (b) a two-member housing structure including opposing substantially flat back surfaces and a top structure including a handle mounting surface facing away from the base structure; molded integrally with the housing structure to hinge to each other along the sides of the abrasive device, the abrasive device is rotated between an open position in which the base structure and the top structure are rotated apart and a position in which the base structure and the top structure are rotated toward each other; (c) sandpaper retention means for removably retaining sandpaper on the rear surface of the base structure; and (d) the base structure and the top structure. a latching means integrally molded with the housing structure for releasably latching the holder in its closed position; 2. The top structure is interchangeable with another top structure, thereby allowing the top structure to be replaced with one top structure having a different handle arrangement on its handle mounting surface. Apparatus described in section. 3. The device of claim 1, wherein the handle member is integrally molded with the top structure. 4. A handle member extends longitudinally of the top structure, the handle member being connected to the top structure and extending downward; 2.
a central portion interconnected with two ends, the central portion being spaced from the top structure to permit placement of a user's hand between the top structure and the central portion of the handle member; The device according to claim 3. 5. The device of claim 4, wherein the central portion of the handle member includes an arcuate portion extending downwardly for a comfortable grip. 6. The device of claim 1, wherein the abrasive device has a thin wall construction to obtain a lightweight abrasive device. 7. The device of claim 4, wherein the top structure defines a recess below the handle member to provide extra space for the user's hands. 8. The top structure includes a handle joint assembly means for interconnecting the elongate handle member to the top structure, the handle joint assembly means including a universal joint means attached to the top structure, and the rear surface of the base structure includes a handle joint assembly means for interconnecting the elongated handle member to the top structure; 2. The device of claim 1, wherein the device is adapted to be placed in a plurality of angular positions relative to the member. 9. The universal joint means includes a U-shaped member spanning the pin means of the top structure for rotation about a first axis, the free ends of the U-shaped member defining spaced and aligned holes; ,
The handle joint assembly means includes a handle attachment means for attaching to the handle member, the handle attachment means includes pin means for pivotally attaching within the aligned hole of the U-shaped member, and the handle attachment means includes a handle attachment means for attaching to the handle member; 9. A device as claimed in claim 8, adapted for rotation about a second axis perpendicular to the first axis. 10, the U-shaped member is elastically biased toward a rest position;
A patent in which the U-shaped member is displaced from this rest position when pivotally mounted on the pin means of the handle attachment means such that a frictional engagement is obtained between the U-shaped member and the handle attachment means. The apparatus according to claim 9. 11. The apparatus of claim 10, wherein the outer surface of the handle attachment pin means frictionally engages the surface defining the hole in the U-shaped member. 12. The top structure pin means is integrally molded with the top structure;
10. The device of claim 9 concealed within the top structure. 13. The apparatus of claim 10, wherein the top structural pin means is in frictional engagement with the U-shaped member. 14. The top structural pin means includes an elongated pin means having four equally spaced radially extending ribs that frictionally engage the U-shaped member to drive selected rotations of the U-shaped member. 11. Device according to claim 10, characterized in that a frictional engagement is obtained between the U-shaped member and the U-shaped member in the range of dynamic movement. 15. at least one hinge means integrally molded onto one of the top structure and the base structure and defining a shoulder for engaging an edge portion of the other of the top structure and the base structure; 6. The device of claim 1, further comprising: 16. The latching means includes a resilient latching member integrally formed on one of the top structure and the base structure, the latching member being resiliently biased to a rest position; Claims including a shoulder for engaging an edge portion of the other of the top structure and the base structure when in the rest position, such that the shoulder disengages from the edge when pushed into the displaced position. The device according to item 1. 17. The apparatus of claim 1, wherein the sandpaper retaining means is integrally molded with the housing structure. 18. The apparatus of claim 17, wherein the housing structure further includes integrally molded alignment means for maintaining the sandpaper in longitudinal alignment with the housing structure. 19. An abrasive device for use with sheet sandpaper comprising: (a) a shaped base structure and a shaped top structure, the base structure facing away from the top structure; (b) a two-piece housing structure including a back surface, the top structure including a handle mounting surface facing away from the base structure; and (b) a base structure and a bottom structure along a first edge of the abrasive device. The abrasive device is integrally molded into the housing structure so as to be hinged and interchangeably interconnected.
(c) integral with the housing structure, the base structure being arranged in an open position in which the base structure is rotated away from the top structure and in a closed position in which the base structure and the top structure are rotated toward each other; sandpaper retaining means shaped to removably retain opposing ends of the sandpaper between the top structure and the base structure such that the sandpaper is retained on the back surface of the base structure; (d) latching means integrally molded with the housing structure for releasably latching the base structure and the top structure in their closed positions; and a resilient latching member resiliently biased in the rest position, the latching member including a shoulder for engaging an edge of the other of the top structure and the base structure when in the rest position; latching means for disengaging the shoulder from the edge when pushed into the displaced position, allowing the top structure and the base structure to be pivoted to the open position; (e) a handle mounting surface of the top structure; handle means disposed above, including a handle member integrally molded with the top structure, the handle member extending longitudinally of the top structure, and the handle member being connected to the top structure and extending downwardly; including a central portion interconnecting the two extending ends, the central portion being spaced from the top structure to permit placement of a user's hand between the top structure and the central portion of the handle member; An abrasive device comprising: a handle means adapted to allow the user to carry out the operations; 20. An abrasive device for use with sheet sandpaper, comprising: (a) a shaped base structure and a shaped top structure, the base structure facing away from the top structure; (b) a two-piece housing structure including a back surface, the top structure including a handle mounting surface facing away from the base structure; Hinged and interchangeably integrally molded to the housing structure, the abrasive device is pivoted between an open position in which the base structure and the top structure are pivoted apart and the base structure and the top structure are pivoted toward each other. (c) hinge means integrally molded with the housing structure such that the sandpaper is retained on the rear surface of the base structure between the top structure and the base structure; (d) sandpaper retention means adapted to releasably retain opposite ends of the sandpaper; (d) integral with the housing structure for releasably latching the base structure and the top structure in their closed positions; latching means molded into the top structure and including a resilient latching member integrally molded into one of the top structure and the base structure and resiliently biased to a rest position; latching means including a shoulder for engaging an edge of the other of the top structure and the base structure when in position, the shoulder being disengaged from the edge when pushed into the displaced position; (e) a handle coupling means for interconnecting an elongate handle member to a top structure, the handle coupling means being flexible attached to the top structure such that the back surface of the base structure is positioned in a plurality of angular positions relative to the handle member; coupling means, the universal coupling means including a U-shaped member spanning the pin means of the top structure for rotation about a first axis, the free ends of the U-shaped member being spaced apart; and defining aligned holes, further including a handle attachment means for attaching the handle coupling means to the handle member, the handle attachment means rotating about a second axis perpendicular to the first axis. including pin means for pivotally mounting the handle attachment means within the aligned holes in the U-shaped member for movement, the U-shaped member being resiliently biased toward the rest position, and the U-shaped member being mounted in the handle; handle coupling means displaced from a rest position when pivotally mounted on the pin means of the attachment means so as to provide frictional engagement between the U-shaped member and the handle attachment means; This is a polishing device.