a) Field of the Invention
The present invention relates to a hinge assembly, and more particularly to a hinge assembly where the rotational movement of the hinge members is limited, and also to a containing structure, lid and hinge combination and method.
b) Background Art
A common application of hinge members is to be used in connection with doors, lids, etc., and it is often desirable to limit the rotational movement of such lids or doors from the closed to open positions. A common means of accomplishing this is simply to have cushioned or resilient stop members (i.e. a door stop) at a wall location to prevent the door from crashing into an adjacent wall, with the knob of the door making a dent in the wall.
Also, it is common to have a device to limit the distance which in a lid can be opened. For example, a conventional piano bench commonly has a storage compartment where the sheet music or music books can be stored, with the top panel of the bench being hinge mounted to the bench to be able to function both as a lid and also providing a support surface for the person. When the top panel of the music bench is opened, it is usually desired that it be positioned where it will remain open while a person peruses through the music books or sheet music contained in the bench. Thus, there is quite often a pivot link which has a collapsed position and extended position where it positions the lid in a vertical position with a moderate backward tilt.
To describe a first embodiment of the present invention, reference is first made to
The hinge assembly 10 comprises first and second hinge members 20 and 22 which comprise, respectively, first and second hinge connected portions 24 and 26 (see
The first attachment portion 28 of the first hinge member 20 comprises a back surface region 34 and a front surface region 36. The back surface region 34 has a first attachment 38 (surface regions) at which the first attachment portion 28 connects to the door 16. In this first embodiment, the first attachment area 38 is a planar surface which fits against a flat edge surface portion 40 of the door 16. The first attachment portion 28 is shown in
The hinge assembly 10 further comprises a limit section 44 which limits the rotational movement of the door 16 to a given distance of travel between the open and closed positions. This limit section 44 comprises at least one connecting member 46 having a rear base end portion 48 that connects to the first attachment portion 28, and more specifically connects to a front surface region of the first attachment portion 28 of the first hinge member 20.
This connecting member 46 extends through a slot-like opening 50 formed in the second attachment portion 30 and has a front end portion 52 which connects to a limit member 54. This limit member 54 has a limit surface region 56 which faces toward a stop surface region 58 which is in this embodiment a portion of a second back surface region 60 of the aforementioned second attachment portion 30 of the second hinge member 22.
In
The second attachment portion 30 in overall configuration is substantially similar to the first limiting 28, and has a front surface region 61. With the door structure 16 in its closed position, the front surface region 61 of the second attachment portion is adjacent to the front surface region 36 of the first attachment portion 28 or in proximity thereto. The limit section 44 is centered along the hinge axis 18 so that the loads on the limit member are distributed evenly into the structure of the hinge assembly 10, and the connecting member has a planar configuration lying in a plane parallel to the hinge axis.
With further reference to
To comment on other features of the present invention the limit connecting opening 50 has a lengthwise axis having a substantial alignment component lying in a plane perpendicular to the hinge axis 18 of the hinge assembly. The connecting member 46 of the limit section 44 has a curved configuration with a curved alignment axis being a generally circular curve with the hinge axis being at least approximately at a radial center of the curve. Further, the limit connecting member has a thickness dimension generally parallel to the hinge axis and a width dimension aligned with a radius drawn from the hinge axis through the limit connecting member. The width dimension is substantially greater than the thickness dimension, and is desirably at least twice as great, or possibly three or four times as great as the thickness dimension.
Further, the limit member 54 has its limit surface region 56 positioned along both opposite sides of the front end portion 52 of the connecting member 46.
Also, the limit member 56 has a radially outward end portion at a radial distance from the hinge axis, and the second hinge member 22 has an outer edge portion having a radial distance from said hinge axis, and the radial distance of the outer end of the limit member is at least as great as one third of the radial distance to the outer edge of the second hinge member. Also, this radial distance of the limit member outward end portion is at least about one half or two thirds of the radial distance from the hinge axis to the outer edge of the second hinge member.
To describe the operation of this first embodiment, when the door 16 is its closed position, the two attachment portions 28 and 30 of the two hinge members 28 and 22 are in proximity with one another or in contact with one another, and also in parallel, or near parallel, relationship with one another. In that closed position, the limit member 54 and the major portion of the connecting member 46 of the limit section 44 are positioned in the recess 62 formed in the base structure 12.
When the door 16 is moved from its closed to its open position, the first hinge member moves with the door 16 moves rotatably about the hinge axis 18 in an arcuate path of travel. The limit member 54 is positioned so that when the door 16 reaches the location at which it is desired to limit any further rotational movement, the limit member 54 comes into engagement with the stop surface region 58 of the second attachment portion 30 of the second hinge member 22, thus limiting any further rotation of the door structure 16.
When the door is moved to its closed position, it moves with its first hinge member 20 in the opposite direction, so that the limit member 54 moves in an arcuate path of travel further into the recess 62 in the base structure 12.
The hinge section 32, made up of the two hinge portions 24 and 26, can be constructed and assembled in a conventional manner. As shown herein, the first hinge portion 24 comprises a generally cylindrical sleeve portion 66 positioned at, and concentrically with, the hinge axis 18. The first attachment portion 28 is fixedly connected to the sleeve 66 and extends generally radially outwardly from the hinge axis 18 but is offset therefrom by a short distance. Likewise, the connecting member 46 of the limit section 44 is fixedly connected to (or made integrally with) the first attachment portion 28. As shown herein, the attachment portion 28, as well as the attachment portion 30 having matching semi-circular configurations so that these are in congruent alignment with each other in the closed position in a manner that their perimeter edge portions are coincident with one other in a circularly curved alignment plane.
The hinge portion 26 of the second hinge member 22 is made of two cylindrical end portions 68 on opposite ends of the sleeve portion 66 and in alignment therewith. These two hinge portions 24 and 26 can then be connected rotatably to one another by positioning a center pin through axially aligned center openings in the two cylindrical end portions 67 and also through an axially aligned center opening in the sleeve portion 66.
As indicated previously, the opening 50 in the second attachment portion 30 is configured and positioned to accommodate the connecting member 46, and in this embodiment is formed as an elongate slot 50. Further in this particular arrangement the slot 50 is open at the radially inward end to provide a radially inward open slot. Thus in assembling the two hinge members 20 and 22, the connecting member 46 can simply be slipped into and through the open part of the opening 50 to the fully assembled position.
In this particular configuration, the connecting member 46 has a generally pie shaped configuration with the apex end portion of the pie shape being omitted so that the connection can be made to the sleeve portion 66.
A second embodiment will now be described with reference to
Components of this second embodiment which are similar to components of the first embodiment will be given like numerical designations with an “a” suffix distinguishing those of the second embodiment. The overall configuration of the two hinge members 20a and 22a of this second embodiment are substantially the same as the two hinge members 20 and 22 of the first embodiment. Therefore, the components of the first and second hinge members 20a and 20b will not be described in any detail in the following text, and there will not be numerical designations for many of the components of this second embodiment. Rather, several of the numerical designations will be placed in
This second embodiment differs from the first embodiment in two respects. A first difference is that there is provided in the second embodiment a coil spring 68a which is positioned so that it urges the door or lid toward its open position. This could be accomplished in different ways. For example, there could be provided a cylindrical cavity or recess in the sleeve portion 66a, with the coil spring being positioned in the recess. Then the two arms 69a of the coil spring could reach radially outwardly to press against inside surfaces of the two attachment portions 28 and 30.
A second difference is that there is provided a damping pad 69a at the limit surface region 56a that is on the back surface of the second attachment portion 30a. Thus, when the coil spring 68a accelerates the door or lid toward its open position, when reaching the open position, the impact of the limit member 54a on the second attachment portion 30a of the second coil member 22 is dampened.
In both the first and second embodiments, each hinge assembly 10 and 10a can be provided as an assembled unit, in that it is preassembled prior to being installed.
To discuss other features of the present invention, reference is made to
In the following discussion, we will consider the distance “b” to be equal to 100%, and the other distances “c” through “e” will be given percentage values of the distance “b”. Thus, with reference first to
Let us now discuss some functional relationships in the hinge assembly and examine the situation where, for example, the hinge member 22a is connected to a stationary structure, and the other hinge member 20a is connected to a moveable member such as a lid. More specifically, let us assume that the hinge member 22a is horizontally positioned and is attached to a containing structure and the other hinge member 20a is attached to a lid for the containing member, and that the lid in the closed position is horizontally aligned.
Now let us assume that the lid is lifted until it reaches its end limit of travel where the limit member 54a engages the hinge member 22a. The entire surface of the limit member 54a would be pushing upwardly against the hinge member 22a from an outer location which is two thirds of the distance from the hinge axis 18a to the edge of the limit member 54a. This force is reacted into the fasteners which hold the hinge member 22a to the base structure of the containing member. This broader distribution of this force would avoid an undo concentration of loads that might occur in other situations where the load resulted in the form of a torque where the torque arm would be very short, so that for a given torque load, the concentration of the force close to the center of the applied torque would result in substantially higher load concentrations. This very brief commentary on the distribution of the loads is not intended to be any in depth analysis of variations in the distribution of these loads, but is simply to point out in broader terms these functional relationships.
These relative dimensions “c”, “d”, and “e” can be obviously be modified. For example, these dimensions “c”, “d” and “e” could be made larger up to 60%, 70%, or 80%, or possibly even higher. Alternatively, these could be made smaller by 5% increments to 45%, 40%, 35%, 30%, 25% or possibly lower. These values would depend upon the particular application for these hinges, how the loads would be imposed, design restraints resulting from other design mandates, etc.
To summarize somewhat broadly components and functional relationships of these embodiments, the hinge assembly is adapted for use with a door or lid and a base structure where the base structure has an open region and the door is mounted for limited rotational movement between a closed position and an open position.
This hinge assembly comprises the following:
For example, the single connection member 46 could be made as two members 46 and these would be connected to the cylindrical end portions 68 of the second hinge member 22.
Earlier in this text, it was stated that the second embodiment of the hinge assembly 10a was particularly adapted for use where there is a person who is seated next to a console, such as when the person is being seated in an airplane or other transportation vehicle with a console at his (her) side. In FIGS. 15, 15A-10, there is illustrated a console 70 which is positioned, for example, adjacent to a right side of a fuselage of an aircraft, and adjacent to a window seat of the aircraft.
The console 70 comprises a front wall 72 and a top wall 74 having a small curved upturned back portion 76. As shown in
Each lid has a perimeter lip 98 extending a short distance downwardly from perimeter portion of the panel 74, this perimeter lip 98 having front and side portions 100 and 102 respectively.
Each of the lids 88 has a pair of the hinge assemblies 10a of the second embodiment. These two hinge assemblies 10a are located at respective hinge locations 104 (see
Also, there are two attachment locations 110 to receive the fastening members (e.g. screws) that would connect the attachment portion 30a of the hinge assembly 10a. In like manner, there are connecting locations 112 positioned on each lid 88.
With the console 70 in its assembled position, each of the hinge assemblies 10a are positioned so that the entire hinge assembly 10a is positioned on top of the panel 74, except that the limit member 54a is positioned in the slot 104 in the panel 74. The two hinge members 20a and 22a are secured to the lid 88 and the top panel, respectively, in the position as shown in
Normally, the passenger in the aircraft would move the lid 88 down to its closed position so that the two latch members 92 and 94 are latched to one another. When the person wants access to the containing section 86, he (she) simply releases the latch assembly 96, and the lid 88 is spring loaded to move to its upper position, as shown in
Thus, the passenger would be able to release the latches 92 and 94 to cause the door to open due to the spring action of the hinge assemblies 10a, and then be able to select items from the containing section 86 with the lid 88 remaining open. Then the lid 88 can be pressed downwardly so that the latch member 92 and 94 come into engagement and the lid 88 is held in place.
As indicated earlier in this text, various modifications could be made in the present invention without departing from the basic teachings thereof.
This application claims priority benefit of U.S. Ser. No. 60/609,055, filed Sep. 9, 2004.
Number | Date | Country | |
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60609055 | Sep 2004 | US |