CA2115683A1 - Rapid access storage case for camera lenses - Google Patents
Rapid access storage case for camera lensesInfo
- Publication number
- CA2115683A1 CA2115683A1 CA002115683A CA2115683A CA2115683A1 CA 2115683 A1 CA2115683 A1 CA 2115683A1 CA 002115683 A CA002115683 A CA 002115683A CA 2115683 A CA2115683 A CA 2115683A CA 2115683 A1 CA2115683 A1 CA 2115683A1
- Authority
- CA
- Canada
- Prior art keywords
- shell section
- case
- lens
- section
- shell
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
Links
- 239000006260 foam Substances 0.000 claims description 5
- 238000007789 sealing Methods 0.000 claims description 5
- 230000008878 coupling Effects 0.000 claims description 2
- 238000010168 coupling process Methods 0.000 claims description 2
- 238000005859 coupling reaction Methods 0.000 claims description 2
- 230000003287 optical effect Effects 0.000 claims 1
- 150000001875 compounds Chemical class 0.000 abstract description 2
- 239000000428 dust Substances 0.000 description 7
- 229920003023 plastic Polymers 0.000 description 3
- 239000004033 plastic Substances 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 241001465754 Metazoa Species 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000000881 depressing effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 229920001084 poly(chloroprene) Polymers 0.000 description 1
- 230000011514 reflex Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B17/00—Details of cameras or camera bodies; Accessories therefor
- G03B17/02—Bodies
- G03B17/08—Waterproof bodies or housings
-
- A—HUMAN NECESSITIES
- A45—HAND OR TRAVELLING ARTICLES
- A45C—PURSES; LUGGAGE; HAND CARRIED BAGS
- A45C11/00—Receptacles for purposes not provided for in groups A45C1/00-A45C9/00
-
- A—HUMAN NECESSITIES
- A45—HAND OR TRAVELLING ARTICLES
- A45C—PURSES; LUGGAGE; HAND CARRIED BAGS
- A45C11/00—Receptacles for purposes not provided for in groups A45C1/00-A45C9/00
- A45C11/38—Camera cases, e.g. of ever-ready type
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Purses, Travelling Bags, Baskets, Or Suitcases (AREA)
Abstract
A case for storing interchangeable camera lenses is disclosed.
The case may be integrated with a camera bag or built as a stand alone unit. Thecase has a sealed second shell which surrounds and protects an internal cavity where an interchangeable camera lens may be stored. The shell is formed from a second section and a first section. The second section is attached to the first section by a hinge at its lower end. The second section tilts outwardly with respect to the first section to allow access to the lens. A mount is provided at the lower end of the cavity to receive the mounting end of the lens. With the shell closed, the lens is held vertically, objective end uppermost, within the cavity. The mount is attached near to the centre of a flexible strap, acting as a compound hinge. Thetwo ends of the strap are attached to the first and second sections of the shellrespectively. When the shell is opened, the mount tilts outwardly to approximately 45 degrees, so that the lens projects at an angle from the case. At the same time, the first and second sections of the shell open away from the lens. The lens canthen be easily grasped and removed from the case. The case provides very secure storage for a camera lens in a compact space and yet allows extremely fast and easy access to the lens.
The case may be integrated with a camera bag or built as a stand alone unit. Thecase has a sealed second shell which surrounds and protects an internal cavity where an interchangeable camera lens may be stored. The shell is formed from a second section and a first section. The second section is attached to the first section by a hinge at its lower end. The second section tilts outwardly with respect to the first section to allow access to the lens. A mount is provided at the lower end of the cavity to receive the mounting end of the lens. With the shell closed, the lens is held vertically, objective end uppermost, within the cavity. The mount is attached near to the centre of a flexible strap, acting as a compound hinge. Thetwo ends of the strap are attached to the first and second sections of the shellrespectively. When the shell is opened, the mount tilts outwardly to approximately 45 degrees, so that the lens projects at an angle from the case. At the same time, the first and second sections of the shell open away from the lens. The lens canthen be easily grasped and removed from the case. The case provides very secure storage for a camera lens in a compact space and yet allows extremely fast and easy access to the lens.
Description
RAPID ACCESS STORAGE CASE FOR CAMERA LENSES
FIELD OF THE INVENTION
This invention relates to a storage case for carrying and storing interchangeable camera lenses.
~;.
-BACKGROUND OF THE INVENTION
Single lens reflex ("SLR") cameras with interchangeable lenses are used by many professional and amateur photographers. A photographer will often carry on location a camera body and several lenses of various focal lengths.
Lenses are precision pieces of equipment. They must be stored in a dry place and be protected from dust and shocks. It is most important however, that different lenses be immediately and easily accessible. Many photographic subjects such as wild animals, people, or interesting lighting conditions are transient. If the correct lens is not immediately available, the opportunity to take 10 a picture can be lost.
Cases for interchangeable lens SLR cameras often have a number of padded internal compartments to hold extra lenses. A photographer who wishes to use a lens which is stored in such a camera case must first reach into the camera case to remove the lens. This can often be dimcult because the cases 15 are designed to fit closely around the lenses to prevent them from banging around in the case.
Furthermore, the lens will typically have a dust cover, (rear lens cap) coveringthe portion of the lens which attaches to the camera, to prevent dust from damaging the lens. The photographer must remove the rear lens cap before the 20 lens can be attached to a camera body. The ensuing juggling acts involves holding two lenses, one camera body, and the transference of the rear lens cap from one lens to the other with only two hands. This is not only inconvenient, but one slip can mean dropping and probably damaging a very expensive piece of equipment.
There have been some attempts to design storage cases for camera lenses which allow faster access than is possible with traditional camera cases., For example, Muller, United States patent No. 4,310,092 discloses a shoulder bag for camera accessories. The shoulder bag an outer lid which can be pivoted 2115~83 -out of the way to reveal a peg board like wall. Muller provides a lens holding accessory which comprises a threaded mount which is pivotally attached to the wall. When the lens is being stored, it hangs vertically downward from the mount. The Muiler lens holder can also be locked in an extended position so 5 that it holds the lens facing downward and outwardly for quick ~ccess.
To remove a lens from a shoulder bag according to the Muller design, a photographer must first completely open the outer lid of the shoulder bag. The photographer can then pivot the lens into its extended position and remove it from the case by unscrewing it.
SUMMARY OF THE INVENTION
The invention is a storage case for interchangeable camera lenses, with a built-in lens dispenser. It comprises two shell sections, which when fitted together form a cavity in which the lenses may be stored. The shell sections arejoined together at one end by a hinging means, and at the other end by a clasp.
The distal face of the first section is planar, and includes a means for harnessing the case to camera bags, belts etc. The distal face of the second side is curved.
The medial edge of the first section overlaps the medial edge of the second section and includes a means of sealing, by which no dust or moisture may enter the case. When opened, the second section pivots away from the first section to approximately 90 degrees. Mounted near the bottom of each section, and joining the two sections is a lens dispenser which comprises a flexible strap attached to a base onto which a lens may be affixed. The strap is connected near to the base of both sections, and is of a length such that when the case isin its closed position, the mounting base is held at the bottom of the case, and when the case is in its open position, this 211~83 lens dispenser system pivots at an angle which is approximately half of the angle of the second shell section. In this open position, the lens contained in the case could be easily grasped and removed, and another lens could be easily attached. The case also includes foam inserts which would brace the lens when the case is in its closed position, and prevent the lens from moving in the caseand possibly being damaged.
BRIEF DESCRIPTION OF THE DRAWINGS
In drawings which illustrate specific embodiments of the invention, but which should not be construed as restricting the spirit or scope of the invention n any way:
Figure 1 is a section through a lens storage case according to the invention in its closed configuration, utilizing a flexible strap in the lens dispenser;
Figure 2 is a section through the lens storage case of figure 1 in its partiallyopen configuration, utilizing a flexible strap in the lens dispenser;
Figure 3 is a section through the lens storage case of Figure 1 in its open configuration, utilizing a flexible strap in the lens dispenser:
Figure 4 is a section through the lens storage case according to the invention in its closed configuration, utilizing rigid hinging members in the lens dispenser.
Figure 5 is a section through the lens storage case of Figure 4 in its partiallyopen configuration, utilizing rigid hinging members in the lens dispenser.
Figure 6 is a section through the lens storage case of Figure 4 in its open configuration, utilizing rigid hinging members in the lens dispenser.
211568~
Figure 7 is a perspective view of a camera bag incorporating a lens storage caseaccording to the invention;
Figure 8 is an elevation of the lens storage case of Figure 1;
Figure 9 is a plan view of the lens storage case of Figure 1;
Figure 10 is an elevation of a lens mount and pivoting lens dispenser according to the invention, utilizing a flexible strap;
Figure 11 is an elevation of a lens mount and pivoting lens dispenser according to the invention, utilizing rigid hinging members:
Figure 12 is a perspective view of a lens storage case according to the invention adapted to be worn on a belt.
DETAILED DESCRIPTION OF THE PREFERED EMBODIMENT
Figure 1 shows a lens storage case 1 according to the invention in its closed configuration. When it is closed, case 1 surrounds and protects a cavity 6 into which may be placed a camera lens 31. Case 1 may be integrated into the construction of a larger camera bag 50 (as shown in Figure 9), used as a stand alone lens storage case, or mounted for wearing on a belt (as in Figure 7).
A feature of case 1 is that when it is opened, as shown in Figure 3, lens 31 is held at an angle so that it is easy to grasp lens 31 to remove it from case 1.
Case 1 comprises a shell formed from first section 3 and a second section 5. First section 3 and second section 5 are preferably made from a rigidor semi-rigid plastic. First section 3 and second section 5 are hollow. Together, 2115~83 first section 3 and second section 5 enclose and protect cavity 6 in which camera lens 31 may be stored. The face of first section 3 away from second section 5 (i.e. the distal face of first section 3) is preferably generally planar to facilitate mounting case 1 to a camera bag, belt, or other such object.
First section 3 is attached to second section 5 by hinge 9 at the bottom end of case 1. Hinge 9 allows a user to pivot second section 5 away from first section 3 into an open position, as shown in Figure 3. When second section 5 is in its open position a user can reach into cavity 6 to withdraw lens 31 from cavity 6. Preferably, hinge 9 allows second section 5 to pivot away from first section 3 through an angle of up to 90 degrees.
Case 1 may be held closed by a clasp 13 at its end away from the hinge 9. Preferably, clasp 13 is of a type which can be unlatched by pushing a button downwardly (i.e. generally in the direction of hinge 9). This allows case 1 to be opened very quickly and easily. In one smooth motion a user can push the button downwardly to release clasp 13, move second shell section 5 into its open position and place his or her hand in a convenient position to grasp and remove lens 31 from case 1. For example clasp 13 may be formed from a resilient arm 15 attached to first section 2. Arm 15 has a projection 17 which engages the edge of a slot 16 in a member attached to second section 5. Clasp 13 may then be unlatched by depressing projection 17 to disengage it from the edge of slot 16. After catch 13 has been unlatched, case 1 may be opened by pivoting second section 5 away from first section 3.
When case is closed, cavity 6 is sealed against dust and moisture by a sealing strip 21 which seals the gap between the medial edges of second section 5 and first section 3. Sealing strip 21 may be for example, a neoprene gasket or an "O"-ring seal.
When case is closed, the lens contained within, is braced on all four sides by contoured foam padding 28. One piece is affixed to each of the two shell sections, which when open, pivot away from the lens, and when closed, squeeze the lens from both sides and prevent the lens from moving in the case.
Lens 31 has a connector 33 for attaching lens 31 to a camera body (not shown). On most modern interchangeable camera lenses, connector 33 is a male bayonet mount. For example, NikonTM, CanonTM, and MinoltaTM cameras have different non-interchangeable bayonet-type connectors. Some interchangeable camera lenses have screw-type connectors.
As shown in Figure 1, lens 31 is held within the cavity 6 by coupling connector 33 of lens 31 to a mounting base 32. Mounting base 32 ,constitutes a lens mounting member. Mounting base 32 sits near at the end of cavity 6 near hinge 9. Mounting base 32 comprises a plate 37 and a lens coupler 35 (similar in shape and function to a camera lens rear lens cap) which is compatible with connector 33. Lens coupler 35 is preferably in the form of a cup. Then, when connector 33 is engaged in lens coupler 35, the end of lens 31 is surrounded by the lens coupler 35 (in the same way that a rear lens cap attaches to a lens) and is thereby protected from any dust, moisture etc. Lens Coupler 35 may be a standard dust cap for a lens which is attached to a plate 37, or a similar devise made specifically for that purpose.
Mounting base 32 is held in place in cavity 6 through the use of a flexible strap 39 acting as a compound hinge, attached to a plastic backplate 44 by - 211~683 connectors 61, and 62 at points 45A, and 45B. Mounting base 32 is attached to backplate 44 at first points 32a and at second points 32b. A first segment 41of strap 39 projects toward first shell section 3, from beneath backplate 44 past points 44a. A second segment 43 of strap 39 projects toward second shell section 5 from beneath backplate 44 past points 44b. First segment 41 constitutes a first connecting member connecting backplate 44 and mounting base 32 to first section 3. Second segment 43 constitutes a second connecting member connecting back plate 44 and mounting base 32 to second shell section 5. First end 39a and second end 39b of flexible strap 39 are attached to the inside lower portions of the first section 3, and second section 5 of case 1 respectively. Strap 39 may be a heavy nylon strap such as a piece of seat-belt webbing, as in Figures 1,2,3,and 10. Strap 39and attached backplate 44 may also be replaced by a rigid or semi-rigid plastic plate, hinged on the ends as in Figures 4,5,6,and 11.
As shown in figures 2,3,5,and 6, when case 1 is opened, hinge 9 forms a ridge in the bottom of cavity 6. As case 1 is opened (as shown in Figures 3, and 6), the ridge contacts the underside of mounting base 32 at point 32c.
Second segment 43 of strap 39 pulls the second edge 44b of plate 44 downward over hinge 9, which acts as a fulcrum, and thereby tilts mounting base 32 outwardly. This causes lens 31 to be held outwardly when case 1 is open so that lens 31 is easy to grasp and remove from case 1.
Preferably mounting base 32 should tilt outwardly through an angle which is approximately one half of the angle of the opening of second section 5. Then,when case 1 is open, lens 31 will be held in the centre of the opening formed between first section 3, and second section 5 so that it can easily be grasped and removed from case 1.
The preferred length of first and second segments 41, 43 of strap 39 depend upon the dimensions of first section 3, and second section 5. As shown in Figure 1, hinge 9 may be off-set from the centre line of case 1 (i.e. first section 3 may either be sh~ wcr or deeper than second section 5). It has been found that good results are obtained when the point of contact of hinge 9 with mounting base 32 when case 1 is open is such that the following formulae are satisfied:
(square root of 2 times D1)--D1 = length of 1st segment 41, (square root of 2 times D1)--D1 also equals D2 Where: D1 is the distance between hinge 9 and the distal face of first shell section 3.
D2 is the distance between the first end of first shell section 3 and point 39a.
(square root of 2 times D3) - D3 = length of 2nd segment 43 (square root of 2 times D3) - D3 also equals D4 D3 is the distance between hinge 9 and the distal face of second shell section 5.
D4 is the distance between the first end of second shell section 5 and point 39b.
According to the above formulae, the lengths of first and second segments 41,43 of strap 39 are such that when case 1 is open, mounting base 32 is positioned on top of hinge 9, and mounting base 32 is at the desired angle with respect to 21156~
the first section 5, and so that first and second segments 41, and 43 are under slight tension when case 1 in opened. In addition, the lengths of first and second segments 41, and 43 of strap 39 are such that when case 1 is closed, mounting base 32 is held securely at a minimum distance from hinge 9 without effecting closure of case 1.
While it may be preferable to use a flexible strap 39 to attach mounting base 32 within case 1, many modifications to the means by which mounting base 32 is mounted within case 1 are possible without departing from the scope of theinvention. For example, one or both of first and second segments 41,and 43 of flexible strap 39 could be replaced with a rigid link, or links connecting mounting base 32 to first and second sections 3,5. First and second segments 41,43 of mounting base 32 would have to be hinged at both ends to allow mounting base to pivot as case 1 is opened. As shown in Figures 4,5,6 and 11, first and second segments 41,43 could be replaced with a pair of rigid links, a first rigid link pivotally connected to backplate 44 at point 44A and pivotally connected tofirst shell section 1, at point 39A, by fasteners at point 39C, and a second rigid link pivotally connected to backplate 44 at point 44B, and pivotally connected to second shell section 5 at point 39b by fasteners at point 39D.
It may be preferable to have hinge 9 offset from the centre line of case 1. One advantage is that this configuration offers more room on the top of the case to mount a clasp. Another more important advantage is that this allows one of the segments 41, and to be relatively short. A short segment of strap 39 is fairly stiff, and prevents lens 31 from moving around in the case 1 both whencase 1 is ciosed, or when it is open and lenses are being removed or attached.
FIELD OF THE INVENTION
This invention relates to a storage case for carrying and storing interchangeable camera lenses.
~;.
-BACKGROUND OF THE INVENTION
Single lens reflex ("SLR") cameras with interchangeable lenses are used by many professional and amateur photographers. A photographer will often carry on location a camera body and several lenses of various focal lengths.
Lenses are precision pieces of equipment. They must be stored in a dry place and be protected from dust and shocks. It is most important however, that different lenses be immediately and easily accessible. Many photographic subjects such as wild animals, people, or interesting lighting conditions are transient. If the correct lens is not immediately available, the opportunity to take 10 a picture can be lost.
Cases for interchangeable lens SLR cameras often have a number of padded internal compartments to hold extra lenses. A photographer who wishes to use a lens which is stored in such a camera case must first reach into the camera case to remove the lens. This can often be dimcult because the cases 15 are designed to fit closely around the lenses to prevent them from banging around in the case.
Furthermore, the lens will typically have a dust cover, (rear lens cap) coveringthe portion of the lens which attaches to the camera, to prevent dust from damaging the lens. The photographer must remove the rear lens cap before the 20 lens can be attached to a camera body. The ensuing juggling acts involves holding two lenses, one camera body, and the transference of the rear lens cap from one lens to the other with only two hands. This is not only inconvenient, but one slip can mean dropping and probably damaging a very expensive piece of equipment.
There have been some attempts to design storage cases for camera lenses which allow faster access than is possible with traditional camera cases., For example, Muller, United States patent No. 4,310,092 discloses a shoulder bag for camera accessories. The shoulder bag an outer lid which can be pivoted 2115~83 -out of the way to reveal a peg board like wall. Muller provides a lens holding accessory which comprises a threaded mount which is pivotally attached to the wall. When the lens is being stored, it hangs vertically downward from the mount. The Muiler lens holder can also be locked in an extended position so 5 that it holds the lens facing downward and outwardly for quick ~ccess.
To remove a lens from a shoulder bag according to the Muller design, a photographer must first completely open the outer lid of the shoulder bag. The photographer can then pivot the lens into its extended position and remove it from the case by unscrewing it.
SUMMARY OF THE INVENTION
The invention is a storage case for interchangeable camera lenses, with a built-in lens dispenser. It comprises two shell sections, which when fitted together form a cavity in which the lenses may be stored. The shell sections arejoined together at one end by a hinging means, and at the other end by a clasp.
The distal face of the first section is planar, and includes a means for harnessing the case to camera bags, belts etc. The distal face of the second side is curved.
The medial edge of the first section overlaps the medial edge of the second section and includes a means of sealing, by which no dust or moisture may enter the case. When opened, the second section pivots away from the first section to approximately 90 degrees. Mounted near the bottom of each section, and joining the two sections is a lens dispenser which comprises a flexible strap attached to a base onto which a lens may be affixed. The strap is connected near to the base of both sections, and is of a length such that when the case isin its closed position, the mounting base is held at the bottom of the case, and when the case is in its open position, this 211~83 lens dispenser system pivots at an angle which is approximately half of the angle of the second shell section. In this open position, the lens contained in the case could be easily grasped and removed, and another lens could be easily attached. The case also includes foam inserts which would brace the lens when the case is in its closed position, and prevent the lens from moving in the caseand possibly being damaged.
BRIEF DESCRIPTION OF THE DRAWINGS
In drawings which illustrate specific embodiments of the invention, but which should not be construed as restricting the spirit or scope of the invention n any way:
Figure 1 is a section through a lens storage case according to the invention in its closed configuration, utilizing a flexible strap in the lens dispenser;
Figure 2 is a section through the lens storage case of figure 1 in its partiallyopen configuration, utilizing a flexible strap in the lens dispenser;
Figure 3 is a section through the lens storage case of Figure 1 in its open configuration, utilizing a flexible strap in the lens dispenser:
Figure 4 is a section through the lens storage case according to the invention in its closed configuration, utilizing rigid hinging members in the lens dispenser.
Figure 5 is a section through the lens storage case of Figure 4 in its partiallyopen configuration, utilizing rigid hinging members in the lens dispenser.
Figure 6 is a section through the lens storage case of Figure 4 in its open configuration, utilizing rigid hinging members in the lens dispenser.
211568~
Figure 7 is a perspective view of a camera bag incorporating a lens storage caseaccording to the invention;
Figure 8 is an elevation of the lens storage case of Figure 1;
Figure 9 is a plan view of the lens storage case of Figure 1;
Figure 10 is an elevation of a lens mount and pivoting lens dispenser according to the invention, utilizing a flexible strap;
Figure 11 is an elevation of a lens mount and pivoting lens dispenser according to the invention, utilizing rigid hinging members:
Figure 12 is a perspective view of a lens storage case according to the invention adapted to be worn on a belt.
DETAILED DESCRIPTION OF THE PREFERED EMBODIMENT
Figure 1 shows a lens storage case 1 according to the invention in its closed configuration. When it is closed, case 1 surrounds and protects a cavity 6 into which may be placed a camera lens 31. Case 1 may be integrated into the construction of a larger camera bag 50 (as shown in Figure 9), used as a stand alone lens storage case, or mounted for wearing on a belt (as in Figure 7).
A feature of case 1 is that when it is opened, as shown in Figure 3, lens 31 is held at an angle so that it is easy to grasp lens 31 to remove it from case 1.
Case 1 comprises a shell formed from first section 3 and a second section 5. First section 3 and second section 5 are preferably made from a rigidor semi-rigid plastic. First section 3 and second section 5 are hollow. Together, 2115~83 first section 3 and second section 5 enclose and protect cavity 6 in which camera lens 31 may be stored. The face of first section 3 away from second section 5 (i.e. the distal face of first section 3) is preferably generally planar to facilitate mounting case 1 to a camera bag, belt, or other such object.
First section 3 is attached to second section 5 by hinge 9 at the bottom end of case 1. Hinge 9 allows a user to pivot second section 5 away from first section 3 into an open position, as shown in Figure 3. When second section 5 is in its open position a user can reach into cavity 6 to withdraw lens 31 from cavity 6. Preferably, hinge 9 allows second section 5 to pivot away from first section 3 through an angle of up to 90 degrees.
Case 1 may be held closed by a clasp 13 at its end away from the hinge 9. Preferably, clasp 13 is of a type which can be unlatched by pushing a button downwardly (i.e. generally in the direction of hinge 9). This allows case 1 to be opened very quickly and easily. In one smooth motion a user can push the button downwardly to release clasp 13, move second shell section 5 into its open position and place his or her hand in a convenient position to grasp and remove lens 31 from case 1. For example clasp 13 may be formed from a resilient arm 15 attached to first section 2. Arm 15 has a projection 17 which engages the edge of a slot 16 in a member attached to second section 5. Clasp 13 may then be unlatched by depressing projection 17 to disengage it from the edge of slot 16. After catch 13 has been unlatched, case 1 may be opened by pivoting second section 5 away from first section 3.
When case is closed, cavity 6 is sealed against dust and moisture by a sealing strip 21 which seals the gap between the medial edges of second section 5 and first section 3. Sealing strip 21 may be for example, a neoprene gasket or an "O"-ring seal.
When case is closed, the lens contained within, is braced on all four sides by contoured foam padding 28. One piece is affixed to each of the two shell sections, which when open, pivot away from the lens, and when closed, squeeze the lens from both sides and prevent the lens from moving in the case.
Lens 31 has a connector 33 for attaching lens 31 to a camera body (not shown). On most modern interchangeable camera lenses, connector 33 is a male bayonet mount. For example, NikonTM, CanonTM, and MinoltaTM cameras have different non-interchangeable bayonet-type connectors. Some interchangeable camera lenses have screw-type connectors.
As shown in Figure 1, lens 31 is held within the cavity 6 by coupling connector 33 of lens 31 to a mounting base 32. Mounting base 32 ,constitutes a lens mounting member. Mounting base 32 sits near at the end of cavity 6 near hinge 9. Mounting base 32 comprises a plate 37 and a lens coupler 35 (similar in shape and function to a camera lens rear lens cap) which is compatible with connector 33. Lens coupler 35 is preferably in the form of a cup. Then, when connector 33 is engaged in lens coupler 35, the end of lens 31 is surrounded by the lens coupler 35 (in the same way that a rear lens cap attaches to a lens) and is thereby protected from any dust, moisture etc. Lens Coupler 35 may be a standard dust cap for a lens which is attached to a plate 37, or a similar devise made specifically for that purpose.
Mounting base 32 is held in place in cavity 6 through the use of a flexible strap 39 acting as a compound hinge, attached to a plastic backplate 44 by - 211~683 connectors 61, and 62 at points 45A, and 45B. Mounting base 32 is attached to backplate 44 at first points 32a and at second points 32b. A first segment 41of strap 39 projects toward first shell section 3, from beneath backplate 44 past points 44a. A second segment 43 of strap 39 projects toward second shell section 5 from beneath backplate 44 past points 44b. First segment 41 constitutes a first connecting member connecting backplate 44 and mounting base 32 to first section 3. Second segment 43 constitutes a second connecting member connecting back plate 44 and mounting base 32 to second shell section 5. First end 39a and second end 39b of flexible strap 39 are attached to the inside lower portions of the first section 3, and second section 5 of case 1 respectively. Strap 39 may be a heavy nylon strap such as a piece of seat-belt webbing, as in Figures 1,2,3,and 10. Strap 39and attached backplate 44 may also be replaced by a rigid or semi-rigid plastic plate, hinged on the ends as in Figures 4,5,6,and 11.
As shown in figures 2,3,5,and 6, when case 1 is opened, hinge 9 forms a ridge in the bottom of cavity 6. As case 1 is opened (as shown in Figures 3, and 6), the ridge contacts the underside of mounting base 32 at point 32c.
Second segment 43 of strap 39 pulls the second edge 44b of plate 44 downward over hinge 9, which acts as a fulcrum, and thereby tilts mounting base 32 outwardly. This causes lens 31 to be held outwardly when case 1 is open so that lens 31 is easy to grasp and remove from case 1.
Preferably mounting base 32 should tilt outwardly through an angle which is approximately one half of the angle of the opening of second section 5. Then,when case 1 is open, lens 31 will be held in the centre of the opening formed between first section 3, and second section 5 so that it can easily be grasped and removed from case 1.
The preferred length of first and second segments 41, 43 of strap 39 depend upon the dimensions of first section 3, and second section 5. As shown in Figure 1, hinge 9 may be off-set from the centre line of case 1 (i.e. first section 3 may either be sh~ wcr or deeper than second section 5). It has been found that good results are obtained when the point of contact of hinge 9 with mounting base 32 when case 1 is open is such that the following formulae are satisfied:
(square root of 2 times D1)--D1 = length of 1st segment 41, (square root of 2 times D1)--D1 also equals D2 Where: D1 is the distance between hinge 9 and the distal face of first shell section 3.
D2 is the distance between the first end of first shell section 3 and point 39a.
(square root of 2 times D3) - D3 = length of 2nd segment 43 (square root of 2 times D3) - D3 also equals D4 D3 is the distance between hinge 9 and the distal face of second shell section 5.
D4 is the distance between the first end of second shell section 5 and point 39b.
According to the above formulae, the lengths of first and second segments 41,43 of strap 39 are such that when case 1 is open, mounting base 32 is positioned on top of hinge 9, and mounting base 32 is at the desired angle with respect to 21156~
the first section 5, and so that first and second segments 41, and 43 are under slight tension when case 1 in opened. In addition, the lengths of first and second segments 41, and 43 of strap 39 are such that when case 1 is closed, mounting base 32 is held securely at a minimum distance from hinge 9 without effecting closure of case 1.
While it may be preferable to use a flexible strap 39 to attach mounting base 32 within case 1, many modifications to the means by which mounting base 32 is mounted within case 1 are possible without departing from the scope of theinvention. For example, one or both of first and second segments 41,and 43 of flexible strap 39 could be replaced with a rigid link, or links connecting mounting base 32 to first and second sections 3,5. First and second segments 41,43 of mounting base 32 would have to be hinged at both ends to allow mounting base to pivot as case 1 is opened. As shown in Figures 4,5,6 and 11, first and second segments 41,43 could be replaced with a pair of rigid links, a first rigid link pivotally connected to backplate 44 at point 44A and pivotally connected tofirst shell section 1, at point 39A, by fasteners at point 39C, and a second rigid link pivotally connected to backplate 44 at point 44B, and pivotally connected to second shell section 5 at point 39b by fasteners at point 39D.
It may be preferable to have hinge 9 offset from the centre line of case 1. One advantage is that this configuration offers more room on the top of the case to mount a clasp. Another more important advantage is that this allows one of the segments 41, and to be relatively short. A short segment of strap 39 is fairly stiff, and prevents lens 31 from moving around in the case 1 both whencase 1 is ciosed, or when it is open and lenses are being removed or attached.
2 1 1 ~
As shown in Figures 4,5,and 6, it is preferable that second section 5 of case 1 include a lip of at least 3mm fairly close to medial edge of shell section 5. This lip (portion of the second end of shell section 5 that is measured approximately 3mm further from the hinge end than the rest of the second end of shell section 5) is provided to act as a barrier in preventing rainwater fromentering the case 1.
As shown in Figure 7, lens coupler 35 may be mounted to an intermediate plate 37. The unit comprising connector 35 and intermediate plate 37 may then be bolted to backplate 37 by means studs and wingnuts, or any other convenient means such as screws with nuts, 57,59 etc. With this arrangement, a photographer can change the lens coupler 35 to be compatible with any interchangeable lens for which a lens coupler 35 which is compatible with that lens is available.
As shown in Figure 8, case 1 may be provided with a bracket 74 attached to the first side of first section 3. This bracket can be fitted over a belt 73 and held securely with a webbing tab attached to the belt which snaps onto the snap attachment 75 on the top of shell section 1. This same bracket can be used to attach the lens case to any number of items such as backpacks, camera bags, fanny packs etc. This bracket is not intended as the only possible means of mounting the cases 1 to other items. Any number of systems could be employed to accomplish the same task by using such materials as velcro tm, snaps, buckles, straps, etc.
As will be apparent to those skilled in the art in the light of the foregoing disclosure, many alterations and modifications are possible in the practice of this invention without departing from the spirit or scope thereof. Accordingly, the scope of the invention is to be construed in accordance with the substance defined by the following claims.
As shown in Figures 4,5,and 6, it is preferable that second section 5 of case 1 include a lip of at least 3mm fairly close to medial edge of shell section 5. This lip (portion of the second end of shell section 5 that is measured approximately 3mm further from the hinge end than the rest of the second end of shell section 5) is provided to act as a barrier in preventing rainwater fromentering the case 1.
As shown in Figure 7, lens coupler 35 may be mounted to an intermediate plate 37. The unit comprising connector 35 and intermediate plate 37 may then be bolted to backplate 37 by means studs and wingnuts, or any other convenient means such as screws with nuts, 57,59 etc. With this arrangement, a photographer can change the lens coupler 35 to be compatible with any interchangeable lens for which a lens coupler 35 which is compatible with that lens is available.
As shown in Figure 8, case 1 may be provided with a bracket 74 attached to the first side of first section 3. This bracket can be fitted over a belt 73 and held securely with a webbing tab attached to the belt which snaps onto the snap attachment 75 on the top of shell section 1. This same bracket can be used to attach the lens case to any number of items such as backpacks, camera bags, fanny packs etc. This bracket is not intended as the only possible means of mounting the cases 1 to other items. Any number of systems could be employed to accomplish the same task by using such materials as velcro tm, snaps, buckles, straps, etc.
As will be apparent to those skilled in the art in the light of the foregoing disclosure, many alterations and modifications are possible in the practice of this invention without departing from the spirit or scope thereof. Accordingly, the scope of the invention is to be construed in accordance with the substance defined by the following claims.
Claims (21)
1. A case for storing a lens having a connector for attachment to a camera, said case comprising:
a. a first shell section having first and second ends, a medial edge and a generally planar distal face;
b. a second shell section having first and second ends, a curved distal face and a medial edge, said first end of said second shell section hinged to said first end of said first shell section for pivotal motion of said second shell section between an open position and a closed position, said first and second shell sections defining a cavity, said medial edge of said first shell section overlapping outside of said medial edge of said second shell section when said second shell section is in said closed position;
c. sealing means disposed around said medial edge of said first shell section;
d. a flat flexible strap having a first side facing toward said first end of said first shell section and a second side facing toward said second end of said first shell section, said flexible strap connected between said first end of said distal face of said first shell section and said second shell section near said first end;
e. a lens mounting member fastened to said second side of said flexible strap, said lens mounting having a first edge, a second edge, and a second side,said second side facing away from said strap;
f. fastening means attaching said lens mounting member to said strap at points at or near said first and second edges of said lens mounting member; and g. a cup detachably affixed to said second side of said lens mounting member, said cup having interiorly extending projections for engaging a connector on a lens.
a. a first shell section having first and second ends, a medial edge and a generally planar distal face;
b. a second shell section having first and second ends, a curved distal face and a medial edge, said first end of said second shell section hinged to said first end of said first shell section for pivotal motion of said second shell section between an open position and a closed position, said first and second shell sections defining a cavity, said medial edge of said first shell section overlapping outside of said medial edge of said second shell section when said second shell section is in said closed position;
c. sealing means disposed around said medial edge of said first shell section;
d. a flat flexible strap having a first side facing toward said first end of said first shell section and a second side facing toward said second end of said first shell section, said flexible strap connected between said first end of said distal face of said first shell section and said second shell section near said first end;
e. a lens mounting member fastened to said second side of said flexible strap, said lens mounting having a first edge, a second edge, and a second side,said second side facing away from said strap;
f. fastening means attaching said lens mounting member to said strap at points at or near said first and second edges of said lens mounting member; and g. a cup detachably affixed to said second side of said lens mounting member, said cup having interiorly extending projections for engaging a connector on a lens.
2. A case for storing a lens having a connector for attachment to an optical apparatus, said case comprising:
a. a first shell section having width, length, depth, first and second ends, a medial edge and a distal face;
b. a second shell section having first and second ends and a medial edge, said first end of said second shell section hinged to said first end of said second shell section for pivotal motion of said second shell section between an open position and a closed position, said first and second shell sections defining a cavity;
c. a lens mounting member mounted within said cavity near said first end, said lens mounting member being adapted to hold a connector of a lens on its side facing said second end of said first shell section;
d. a first connecting member connected between said lens mounting member and said first shell section near said first end; and e. a second connecting member connected between said lens mounting member and said second shell section near said first end.
a. a first shell section having width, length, depth, first and second ends, a medial edge and a distal face;
b. a second shell section having first and second ends and a medial edge, said first end of said second shell section hinged to said first end of said second shell section for pivotal motion of said second shell section between an open position and a closed position, said first and second shell sections defining a cavity;
c. a lens mounting member mounted within said cavity near said first end, said lens mounting member being adapted to hold a connector of a lens on its side facing said second end of said first shell section;
d. a first connecting member connected between said lens mounting member and said first shell section near said first end; and e. a second connecting member connected between said lens mounting member and said second shell section near said first end.
3. The case of Claim 2 wherein said first connecting member is a flexible strap.
4. The case of Claim 3 wherein said second connecting member is a flexible strap.
5. The case of Claim 4 wherein said first and second connectors are two ends of a single flexible strap.
6. The case of Claim 4 wherein the distance along said first connecting member between said lens mounting member and said first shell section is directly proportional to the depth of said first end of said first shell section, according to the following formula when "A" constitutes the depth of said first end of said first shell section: {the square root of [2 times( "A" squared)]}
minus "A" equals both the length of said first connecting member, and the distance from said first end of said first shell section to the point at which said connecting member adjoins said first shell section.
minus "A" equals both the length of said first connecting member, and the distance from said first end of said first shell section to the point at which said connecting member adjoins said first shell section.
7. The case of Claim 4 wherein the distance along said second connecting member between said lens mounting member and said second shell section is directly proportional to the depth of said first end of said second shell section, according to the following formula when "B" constitutes the depth of said first end of said first shell section:
{the square root of [2 times ("B" squared)]} minus "B" equals both the length ofsaid connecting member, and the distance of said first end of said second shell section to the point at which said connecting member adjoins said second shell section.
{the square root of [2 times ("B" squared)]} minus "B" equals both the length ofsaid connecting member, and the distance of said first end of said second shell section to the point at which said connecting member adjoins said second shell section.
8. The case of Claim 6 wherein said lens mounting member comprises a flat plate having first and second edges, first fastening means at or near said firstedge connecting said plate to said first member, and second fastening means at or near said second edge connecting said plate to said second member.
9. The case of Claim 2 wherein said connecting member is a flexible strap.
10. The case of Claim 2 wherein said first and second connecting members are rigid links having a first end pivotally connected to said lens mounting member and a second end pivotally connected to said first and second shell sections.
11. The case of Claim 10 wherein said lens mounting member has a first edge toward said first shell section and a second edge toward said second shell section, a point of attachment of said first connecting member to said lens mounting member is directly on or slightly inward from said first edge, a point of connection of said first connecting member to said first shell section is spacedapart from said first end of said first shell section, and the distance along said first connecting member between said mounting member and said first shell section is sufficient to allow only a minimum of space between said first end of said first shell section, and said first edge of said mounting member, and a point of attachment of said second connecting member to said lens mounting member is directly on or slightly inward from said second edge, a point of connection of said second connecting member to said second shell section is spaced apart from said first end of said second shell section, and the distance along said second connecting member between said mounting member and said second shell section is sufficient to allow only a minimum of space between said first end of said second shell section, and said second edge of said mounting member.
12. The case of Claim 2 wherein said first end of said first shell section and said first end of said second shell section are inter connected by a hinge means and said hinge means contacts a side of said lens mounting member when said second shell section is in said open position.
13. The case of Claim 2 wherein said lens mounting member comprises a base connecting member a coupler compatible with a connector on a lens on a side if said base away from said first end of said first shell section, and a detachable fastener attaching said coupler to said base.
14. The case of Claim 2 further comprising a clasp having a first part on said second end of said first shell section and a second part on said second end of said second shell section for holding said second shell section in said closed position.
15. The case of Claim 14 wherein said clasp comprises a button for disengaging said clasp, said button movable between a fastened position away from said firstend and a released position toward said first end and biasing means urging said button into said fastened position.
16. The case of Claim 2 wherein said coupling means comprises a cup, said cup having interiorly extending projections for engaging said connector on said lens.
17. The case of Claim 2 further comprising sealing means disposed around said medial edge of said first shell section.
18. The case of claim 17 wherein said medial edge of said first shell section overlaps outside said medial edge of said second shell section when said second shell section is in said closed position.
19. The case of Claim 18 wherein said second end of said second shell is raised by approximately 5mm at a point between the medial edge of said second shell section, and the furthermost point overlapped by said medial edge of said first shell section in its closed position.
20. The case of Claim 2 further comprising contoured foam padding affixed near the centre point of the distal face of said shell section 1, and contoured foam padding affixed near to the centre point of said shell section 2.
21. The case of Claim 21 wherein said foam padding is of a sufficient shape and density to brace said camera lens in a stationary position within said case,when said case is in said closed position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA002115683A CA2115683A1 (en) | 1994-02-15 | 1994-02-15 | Rapid access storage case for camera lenses |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA002115683A CA2115683A1 (en) | 1994-02-15 | 1994-02-15 | Rapid access storage case for camera lenses |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2115683A1 true CA2115683A1 (en) | 1995-08-16 |
Family
ID=4152911
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002115683A Abandoned CA2115683A1 (en) | 1994-02-15 | 1994-02-15 | Rapid access storage case for camera lenses |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA2115683A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1302680C (en) * | 2002-12-30 | 2007-02-28 | Lg电子株式会社 | Camera casing structure of mobile communication device |
-
1994
- 1994-02-15 CA CA002115683A patent/CA2115683A1/en not_active Abandoned
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1302680C (en) * | 2002-12-30 | 2007-02-28 | Lg电子株式会社 | Camera casing structure of mobile communication device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| FZDE | Discontinued |