The present invention relates to an improvements in the design and operation of a vibrating peeler which facilitates the ability for users to achieve greater control in peeling, especially of food, which will result in less waste both in control of removal of a thinner section of the layer to be peeled, as well as a reduction in the amount of damage to the food.
Generally, portable vibrating peelers are known to facilitate the task of peeling skin from vegetables and fruit. One design has a blade that moves backwards and forwards in a sawing action, with the reciprocating action can be driven by a motor via a crank mechanism, or a cam mechanism of a wobble plate cam mechanism. A different arrangement uses a motor that oscillates a blade in a small arc via a gearbox and crank. Both of these arrangements suffer from a number of shortcomings. Noise generated through gear trains, cams and contact between vibrating surfaces is a significant problem. The use of small, high speed motors (necessitated due to the small dimensions of portable peelers) also generates noise at a higher pitch relative to the human ear. In addition, these arrangements require a shaft to pass from the dry, motor/gearbox area of the product into the wet area of the peeling blade.
Also on the market are vibrating toothbrushes and vibrating wet razors. These use a different approach in which a small, high speed motor with an eccentric mass fitted to the shaft is used to produce vibration by small changes in mass. The motor rotation therefore creates a vibration that is transmitted through the entire product. This vibration is therefore imposed upon the hand of the user who is holding the implement. Thus the hand of the user is used to both damp the vibration as well as being somewhat irritated by it. The vibrations that are needed by a toothbrush or razor are quite small so the vibrations felt by the hand are acceptable.
A vibrating peeler uses a vibrator in the form of a more powerful motor plus larger weight and within an inner housing. The inner housing is placed in an outer housing and a damper is placed between the outer handle and inner housing. Careful positioning and design of the damper then allows the inner housing to move relative to the outer handle. In this way a powerful yet quiet vibrating motor/eccentric can be comfortably held in the hand.
By placing the damper at the opposite end to the vibrator, with the peeler blade near the vibrator and away from the damper, a large cutting amplitude can be attained, but with very limited vibration being transmitted to the outer handle. In a second embodiment, in lieu of a damper, a pivot is placed between the outer handle and the inner housing. This pivot transfers only approximately half of the vibrations to the outer handle with the other half of the vibrations being relatively unconstrained.
In a further modification to the vibrating motor/eccentric, a lightweight eccentric cam is used to drive an oscillating weight to change the amplitude of vibrations in different directions. The peeler of the invention includes both peeler arms and blade, to enable the blade to be released by pressing the peeler arms together in one possible embodiment. An alternative lever arm design can utilize added levers are added to allow the levers to be squeezed to transmit force to the peeler arms to cause a previously restrained blade to be released. A further alternative includes a light weight eccentric which drives a heavier mass, but only back and forth rather than a circular pattern. This vibrating arrangement puts more lateral motion to the blade, and avoids other motion in directions not parallel to the blade.
The invention, its configuration, construction, and operation will be best further described in the following detailed description, taken in conjunction with the accompanying drawings in which:
The description and operation of the vibrating peeler of the invention is best begun with reference to
At the forward housing 35, a pair of arms, including a right arm 43 and a left arm 45. Arms 43 and 45 extend laterally curvingly away from the forward housing 35 and terminate after some parallel extent. At each of the ends of the arms 43 and 45 is a downwardly directed slot 47. Roughly seen within the slot are a pair of blade pivots 49. As can be seen the blade pivots have an expanded diameter portion at the insides or facing portions of the ends of the arms 43 and 45, of which further details will be shown. Generally, a watertight joint is formed between the arms 43 and 45 and the forward housing 35 by integral formation, ultrasonic welding, solvent welding or a similar means.
A double blade 53 having a central slot 55 has sharpened edges on either side of the central slot 55 so that peeling can be accomplished in either a forward or rearward direction. The interaction of the pair of blade pivots 49 and the arms 43 will be such as to allow the double blade 53 to pivot, but may be arranged to maintain it generally within an angular positional constraint if desired.
The pivots 49 can be attached to the double blade 53 by over molding, bonded, press fit or attached in any other suitable fashion. When clipped in, there is light pressure on the face of the flanges 49 to ensure that the vibrations of the arms 43 and 45 of the vibrating peeler 31 are efficiently transmitted to the double blade 53 itself. The double blade 53 is free to pivot to suit the surface of any food or other object being peeled. To remove the double blade 53, either end may be un-clipped first by applying downward pressure to the arms 43 and 45. A safety cover (not shown) can be placed over the blade for further safe handling during blade removal/insertion. As will be seen, two other blade removal structures will be shown which can facilitate removal of the double blade 53 also by spreading of the arms 43 and 45 and by compression of the arms 43 and 45.
At the top of the forward housing 35 is an on/off button 61. The on/off button 61 will preferably press to turn and leave on action and a push to turn off so that the user may be position their hands on the handle 33 for optimum comfort and view of the peeling operation. The central and upper location of the on/off button 61 will permit it actuation by thumb and enable the user to actuate the vibrating peeler 31 on and off without the necessity to bring any part of the user's hands forward of the center of the forward housing 35 and to easily avoid placing the hands anywhere near blade 53 while actuating the vibrating peeler 31 on and off.
Also seen in
Referring to
The rear projection 85 may have a series of radially extending locating ribs 87. Locating ribs 87 may interfit and be located within grooves or other accommodating structure within the damper 75, as will be shown. Also seen is a damper washer 91 which has a series of projections 93 which may penetrate the damper 75 through pre-formed bores. The damper washer helps to form a good seal between end closure 37 and end closure's attachment into the projection 85. The projections help to control the movement and relationship of the damper washer 91.
Referring to
Ideally, damper 75 may be attached to the inside surface of handle member 33, welding, adhesive and more. End closure 37 screws into the end projection 85 which may preferably be formed with and an integral part of the battery housing 73. Damper 75, with damper washer 91 in place, becomes trapped between the battery housing 73 and the end closure 37. Tightening the end closure 37 into the projection 85 makes the damper 75 compress a bit and can adjust the damping. Damper washer 91 allows end closure 37 to turn easily without friction dragging directly onto the rubber damper.
Damper 75, in this exploded view, is seen to have a number of slots or grooves 101 (of which three are seen) for interfitting with the series of radially extending locating ribs 87 on the projection 85. Projection 85 slides into the damper 75 aligned by ribs 87 and slots or grooves 101. Damper washer 91 is placed adjacent the damper 75 with pins or projections 93 either into matching bores or if the projections 93 are small enough, simply pressed into the damper 75 form the stabilizing barrier against the turning of the end projection 37.
As can be seen at the front of the vibrating peeler 31, the end closure 37 holds the motor housing 65 and battery housing 73 and all structures forward of the motor housing 65 as a unitary assembly within the handle member 33. Removal of the end closure 37 allows the handle member 33 to be removed and the vibrating peeler 31 disassembled.
Referring to
The enclosing wall of the forward housing 35 is partially broken away to reveal details of the components located there. A front wall 111 has an opening through which a motor 113 is partially seen as being located behind the front wall 111. However forward housing 35 and motor housing 65 together form a waterproof enclosure which isolates all of the internal components seen in
As can be particularly seen in
The arms 43 and 45 are seen to possibly be molded with the forward housing 35. The forward housing 35 has an internal space 125 which houses, in addition to the eccentric weight 117 and shaft 115, a number of other structures are shown. A switch 127 has an actuation button 129 which lies underneath a lever 131. Lever 131 underlies an over molded button 133. Lever 131 is attached at a pivot attachment 135. Adequate spacing and clearance is provided about the eccentric weight 117 for rotational clearance.
Further details of the blade pivot 49 is seen where the arm 45 has been removed for clarity. Pivot 49 has a small diameter cylindrical member 141 and an expanded head 143. The head 143 stabilizes and spreads the force from the arms 43 and 45 which are pre-stressed to place force against the outwardly exposed surfaces of the heads 143 of the blade pivots 49. The angle of pivot may or may not be limited by the shape and other features of the blade pivots 49. Since the double blade 53 may easily assume a position were the central slot 53 is immediately adjacent the body to be peeled in some cases it may not be necessary to limit the degree of pivot. Limitation of pivot, for example, can be had by making the small diameter cylindrical member 141 in a shape which is not completely cylindrical or some other expedient.
Referring to
To disassemble the vibrating peeler, the end closure 37 is unscrewed and set aside. This allows the handle member 33, perhaps with integral damper 75 and damper washer 91 connected, to be removed away from the end of the battery housing 73 and projection 85. Removal of the handle member 33 allows access to and the ability to separate handle member 33 from motor housing 65, especially to change the batteries 81. Such access is also facilitated for cleaning and washing. For reassembly, the reverse steps are performed. It should be noted that the damper washer 91 simply protects the Damper from damage which might otherwise be caused by the end closure 37. Generally, the damper 75 functions to position the handle member 33 relative to the battery housing 73 and the damper 75 may be slightly compressed by the end closure 37. Varying compression ratios allow the amount of damping to be adjusted. Indexation between the end closure 37 and the damper washer 91 could allow adjustable, selection of preferred damping.
Referring to
Referring to
Referring to
Whereas eccentric weight 117 caused an operation based upon its own mass, an eccentric cam 307 rotates with a shaft 311 within a generally vertical slot 313 within a rectangular shaped mass 315. Thus the eccentric arrangement is one in which the predominant vibrational movement is from side to side. Rectangular shaped mass 315 moves to the left and right within a travel track made up of a lower plate 317 and a pair of upper plates 319 and 321. Eccentric cam 307 may be standard or may be specially constructed to have very little or minimum mass. In any event, the mass of the rectangular shaped mass 315 will predominate and the majority of the vibration will occur along the planes of the plates 317, 319 and 321. The amount of up and down vibration from the mass of the eccentric cam 307 will be negligible.
Referring to
While the present invention has been described in terms of a structure, device and process for creating and delivering a vibrational force and motion to a peeler blade, and particularly a structure which breaks down for easy cleaning, as well as a mechanism for producing vibration predominantly in a plane parallel to the peeler blade, one skilled in the art will realize that the structure and techniques of the present invention can be applied to many structures and devices which are used in the kitchen, and particularly where motion is to be applied to an instrument for preparing and processing food in a fine manner and to enable precision peeling to enhance controllability and the fine appearance of the food product processed and treated by such device.
Although the invention has been derived with reference to particular illustrative embodiments thereof, many changes and modifications of the invention may become apparent to those skilled in the art without departing from the spirit and scope of the invention. Therefore, included within the patent warranted hereon are all such changes and modifications as may reasonably and properly be included within the scope of this contribution to the art.