WO2008154877A1

WO2008154877A1 - A soft box

Info

Publication number: WO2008154877A1
Application number: PCT/CN2008/071371
Authority: WO
Inventors: Jianliang Zou
Original assignee: Jianliang Zou
Priority date: 2007-06-21
Filing date: 2008-06-19
Publication date: 2008-12-24
Also published as: CN101689011B; CN101689011A

Abstract

A soft box includes an engaging-opening which can engage with a light source, a base which is connected to the engaging-opening and used to fix supporting rods, some flexible supporting rods(7,19,24), an umbrella inside-reflecting cover(11,17,22,34) raised by the supporting rods and a soft screen which is provided at the opening of the cover. Wherein, locking devices are set at the corners of the cover and can engage with the free ends of the supporting rods(7,19,24), the locking devices allow the supporting rods(7,19,24) inside the locking devices by tangent movement. The locking devices include heads on the ends of the supporting rods and sleeve sets(1,15,20,30) with one side opened which are provided on the corners of the cover.

Description

Instruction manual

Technical field

[1] The present invention relates to a photographic imaging apparatus, and more particularly to a softbox.

Background technique

[2] The function of the softbox is to convert the point source into a uniform surface source, which has long been used by photographers as a photographic object.

The human body provides diffused light illumination.

[3] At present, the soft box on the market is usually made into a quadrangular umbrella shape, an octagonal umbrella shape, etc., the top of the umbrella has a bayonet matching the light source device, and the other end of the bayonet and a support rod can be installed. The base is rotatably connected

The support rod mounted on the base extends outward, supports the inner reflective cover into an umbrella shape, and finally installs a soft screen at the opening of the cover.

[4] In the assembly of the softbox, the support rods are usually first mounted to the base one by one, for example, the support rods are inserted into the corresponding holes of the bayonet ring; then the support rods are bent one by one, so that the free ends of the support rods Arrive at the corners of the cover, then lock the free end of the support bar to the corner of the cover, and then install the soft screen to complete the assembly of the entire softbox.

[5] In order to ensure the light efficiency of the softbox, the outer cover should be fully tensioned by the support rod after assembly, so the elastic force of the support rod is required to be strong, in order to securely lock the support rod to the corner of the outer cover, usually At the corners of the outer cover, the pockets for inserting the support rods from the radial direction are firmly fitted, and it is difficult to obtain the radial freedom required to insert the support rods into the pockets. The current methods include: 1. Pulling the cover vigorously; 2

Strongly flex the support rod; 3. Increase the opening in the part of the outer cover that covers the base so that the base can protrude outside the outer cover at the top of the umbrella; _4. Set a rotatable structure at the fixed support rod of the base to adjust the tension of the support rod; Use a Velcro to tighten the support bar at the corners of the cover. These methods sacrifice the durability of the softbox components, increase the complexity of the softbox structure, and even pose a safety hazard, but still do not guarantee that the enclosure is adequately supported by the support rods.

Summary of the invention

[6] The present invention provides a softbox, which solves the above technical problems, so that the corners of the support rod and the outer cover of the softbox can be installed with low physical strength and safety, and the support rod can be fully ensured. Outside the ground Cover.

[7] The present invention provides a softbox comprising a bayonet matched to a light source device, a base engageable with the bayonet to mount a support rod, and a plurality of resilient ends mounted on the base a support rod, an umbrella-shaped inner reflective cover supported by the support rod, and a soft screen mounted at the opening of the cover, characterized in that the free end of the support rod and the corner of the outer cover A locking device is provided, and the locking device allows the support rod to enter the locked position by a tangential action.

[8] In the softbox provided by the present invention, the locking device is a tubular sleeve, and the pipe of the tubular sleeve can cover the support rod and prevent the support rod from passing through; The side is provided with a notch that allows the support rod to tangentially enter the tube of the tubular set from the side of the tubular set, the notch being from the opening of the tube of the tubular set.

[9] In the softbox provided by the present invention, the opening of the slot opening is smaller than the diameter of the support rod; and the tubular sleeve has a certain elasticity, allowing the support rod to pass from the notch Passing through into the tube of the tubular set.

[10] In the softbox provided by the present invention, the length of the notch along the axial direction of the tubular set is slightly smaller than the maximum depth of the pipe to which the support rod is allowed to enter the tubular set; The notch-covered pipe is closed annular and can limit the tangential movement of the support rod.

[11] In the softbox provided by the present invention, a tab extending outside the opening of the duct is provided at one end of the duct opening of the tubular sleeve, and the thickness of the tab is not greater than the wall of the tubular sleeve The thickness, and the tab is parallel to the slot; the tab is configured to secure the end of the tubular sleeve without affecting the support rod entering the slot.

[12] In the softbox provided by the present invention, one end of the tubular sleeve is locked at a corner of the outer cover, the other end is movable, and the notch is facing the outer cover; The movable end of the tubular sleeve can control the notch to be snapped onto the outer cover or to be opened outwardly. This rotation can cause the tubular sleeve to wrap around the support bar to tension the outer cover.

[13] In the softbox provided by the present invention, the locking device further includes a head fixed to the end of the support rod, the rod head along the support rod along a section along the axial direction of the support rod The axial width is greater than the diameter of the support rod; a card entry along the side of the slot leading to the slot and the tubular sleeve is provided on the tubular sleeve, the card The inlet allows the support rod with the head to be cut The ground is snapped into the tube of the tubular set and the notch along the tangential direction of the tubular set; the card inlet has an opening that is smaller than the interior in the direction of the opening of the notch. The above configuration ensures that the club head and the card inlet can be joined or separated only at a particular location, and the support bar can be securely locked within the tubular kit.

[14] In the softbox provided by the present invention, the tubular kit is provided with a plurality of the card inlets; each of the card inlets is different from the locking point of the tubular sleeve and the outer cover, and thus The outer cover provides different tensions.

[15] In the softbox provided by the present invention, the tubular sleeve is provided with a collar that can slide along the tubular sleeve; the open end of the tubular sleeve is provided with a boss that stops the collar, and A plurality of bumps are provided between the two ends of the tubular sleeve, and the bumps can restrict the passage of the collar. The collar can prevent the support rod from accidentally disengaging the tubular sleeve from the slot of the tubular set.

[16] In the softbox provided by the present invention, the inner surface of the collar is provided with a plurality of grooves corresponding to the bumps, so that only the bumps correspond to the grooves The collar can pass the bump.

[17] The softbox provided by the invention has the advantages of simple structure, simple operation, safety and reliability, and the support rod can fully tension the outer cover of the softbox to ensure the optical performance of the softbox.

DRAWINGS

[18] The present invention will be further described below in conjunction with the accompanying drawings and embodiments, in which:

Figure 1 is a schematic view of a first embodiment of a softbox of the present invention;

2 is a schematic view showing the installation of the first embodiment of the softbox of the present invention;

Figure 3 is a schematic view of a second embodiment of the softbox of the present invention;

Figure 4 is a schematic view of a third embodiment of the softbox of the present invention;

Figure 5 is a schematic view showing the use of a fourth embodiment of the softbox of the present invention;

Figure 6 is a schematic cross-sectional view of the safety collar of the softbox of the present invention.

detailed description

[25] As shown in FIG. 1, the locking device 1 of the first embodiment of the softbox of the present invention is an injection-molded tubular kit 1 which can be fixed to the corner of the outer cover by the head 2 and the end tab 3 of the tubular kit. The pipe 4 of the fixed tubular casing has a notch 5 parallel to the plane of the casing, the notch 5 is from the opening of the pipe, and the notch The length of 5 is slightly smaller than the depth of the pipe 4, and the opening degree is slightly smaller than the diameter of the support rod 7. Further, the tubular sleeve has a certain elasticity that allows the support rod ₇ to pass through the slot and into the tube 4 of the tubular package. After the support rod 7 is installed, the tubular kit 1 is first tightened to tighten the outer cover, and then the support rod 7 is tangentially pressed into the tube 4 of the tubular set 1 from the side through the notch 5, and the tubular sleeve is passed through the tension of the outer cover after the hand is released. The bottom portion 6 of the pipe 4, which is not covered by the notch 5, covers the end of the support rod 7 and enters the locked position, thereby ensuring that the support rod 7 does not accidentally come off the tubular package 1. It will be appreciated that the locking device can also be machined from sheet metal.

As shown in FIG. 2, the tubular kit 1 of the first embodiment of the softbox of the present invention is mounted at the corner of the outer cover; the head 2 and the end tab 3 of the tubular set 1 are sewn to the outer cover 11. The pockets 12, 13 are nested, and the opening direction of the notch 5 on the tubular set 1 is parallel to the plane of the outer cover 11. It will be understood that the head portion 2 and the end tab 3 of the tubular kit 1 may also be fixed to the outer cover 11 by means of rivets or the like. The tab 3 extends to the outside of the duct opening at one end of the duct opening of the tubular sleeve, and the thickness of the tab 3 is not greater than the wall thickness of the duct kit, and the tab and the slot are parallel to each other.

As shown in FIG. 3, the head of the tubular set 15 of the second embodiment of the softbox of the present invention is fixed to the corner end of the outer cover 17 by the rivet 16, and the open end of the pipe of the tubular sleeve 15 is free. The notch 18 leading to the duct faces the outer casing ₁₇ . After the support rod 19 is installed, the free end of the tubular sleeve 15 is first rotated away from the outer cover 17, and then the end of the support rod 19 is placed on the bottom of the tubular sleeve 15 where the pipe is not covered by the notch, and then the end of the support rod 19 is The support point rotates the free end of the tubular sleeve 15 in the direction of the outer cover 17 until the support rod 19 fully enters the tube of the tubular set 15; at the same time as the tubular package 15, the outer cover 17 will be tensioned.

[28] As shown in FIG. 4, the head of the tubular set 20 of the third embodiment of the softbox of the present invention is fixed to the corner end of the outer cover 22 by the rivet 21, and the notch 23 on the tubular set 20 faces the outer cover 22. The end of the support rod 24 is spherical, and the tubular sleeve 20 is provided with a card inlet 25 that communicates the duct 26 and the slot 23 from the side. The shape of the card inlet 25 matches the shape of the end of the support rod 24. The support rod 24 is allowed to snap into the tube 26 and the notch 23 of the tubular set 20 tangentially along the tubular set 20, and the card inlet 25 has an opening smaller than the inside in the opening direction of the notch 23. After the support rod 24 is mounted, the tubular set 20 is first placed at an angle of 90 degrees to the support rod 24, the end of the support rod 24 is snapped from the card inlet 25 into the interior of the tubular set 20, and then the end of the support rod 24 is The fulcrum rotates the free end of the tubular sleeve 20 to the outer cover 22 until the support rod 24 Along the notch 23, it completely enters the pipe 26 of the tubular sleeve 20, and the same casing 22 is pulled by the rivet 21 to be tensioned; finally, the collar 27 is slid toward the opening of the pipe 26 of the support rod 24, and passes through the bump in a predetermined manner. 28 and staying in front of the boss 29 prevents the support rod 24 from accidentally coming off the tubular set 20. It will be appreciated that the shape and orientation of the card entry 25 is suitably adjusted so that the support bar 24 is at an appropriate angle to the tubular member 20 at the snap fit and the tension applied to the outer cover 22 after the softbox is installed.

As shown in FIG. 5, the fourth embodiment of the softbox of the present invention is based on the third embodiment, and a second card inlet 32 is further provided on the tubular sleeve 30 at a position parallel to the card inlet 31. The second card entry 32 is used in the same manner as the card entry 31, except that when the second card entry 32 is used, the distance between the second card entry 32 and the rivet 33 that secures the tubular and outer cover 34 is relatively far. Therefore, the cover can be made tighter than the card entry 31. It can be understood that the provision of a plurality of card inlets and a plurality of snap-in angles on the tubular package can effectively ensure that the tension of the outer cover is within a reasonable range after the installation is completed.

[30] As shown in FIG. 6, the tubular package 36 of the softbox of the present invention is jacketed with a safety collar 35, the inner surface of the safety collar is provided with a recess 37, and the tubular sleeve 36 is provided with a bump 38, only when the bump The position of 38 corresponds to the position of the recess 37, and the safety collar 35 can pass over the bump 38. It can be understood that when the safety collar is made of an elastic material such as plastic, the size of the bump 38 is reduced to a small enough size, and the safety collar can also be pushed through the bump 38 under great force.

Claims

Claim

A softbox comprising a bayonet matched to a light source device, a base engageable with the bayonet to mount a support rod, and a plurality of resilient support rods having one end mounted on the base

An umbrella-shaped inner reflective cover supported by the support rod and a soft screen mounted at the opening of the cover, wherein the outer corner of the outer cover is provided with the freedom of the support rod An end-fitted locking device that allows the support rod to enter the locked position by a tangential action.

2. The softbox according to claim 1, wherein the locking device is a tubular sleeve, and the tube of the tubular sleeve is sleeved with the support rod and can prevent the support rod from passing therethrough; The tubular set is provided with a slot that allows the support rod to tangentially enter the tubing of the tubular set, the notch being from the opening of the tube of the tubular set.

3. The softbox of claim 2, wherein the tubular sleeve is provided with a collar slidable along the tubular sleeve; the open end of the tubular sleeve is provided with a projection that stops the collar And a plurality of bumps are provided between the two ends of the tubular sleeve, and the bumps can restrict the passage of the collar.

4. A softbox according to claim 3, wherein the inner surface of the collar is provided with a plurality of grooves corresponding to the bumps.

5. The softbox of claim 2, wherein the opening of the slot has an opening that is smaller than a diameter of the support bar; and the tubular sleeve has a certain elasticity to allow the support bar to The slot is forced through into the conduit of the tubular package.

6. A softbox according to any one of claims 2-5, wherein the length of the slot along the axial direction of the tubular sleeve is less than the length of the support rod allowed to enter the tubular kit The maximum depth of the pipe.

The softbox according to any one of claims 2 to 5, wherein a flange extending outside the opening of the duct is provided at one end of the duct opening of the tubular sleeve, the tab The thickness is not greater than the wall thickness of the tubular sleeve, and the tabs are parallel to the slots.

The softbox according to any one of claims 2 to 5, wherein one end of the tubular set is fixed at a corner of the outer cover, and the other end is movable; and the groove Mouth is oriented The outer cover.

9. The softbox of claim 8, wherein the locking device further comprises a head fixed to the end of the support rod, the head being in a section along the axial direction of the support rod a width perpendicular to the axial direction of the support rod is greater than a diameter of the support rod; a card is provided on the tubular sleeve that laterally communicates the notch and the tubular sleeve along the slot An inlet that allows the support rod provided with the head to snap into the tube of the tubular set and the notch along the tangential direction of the tubular set; the card inlet is along the notch The opening direction is that the opening is smaller than the inner one.

10. A softbox according to claim 9, wherein said tubular kit is provided with a plurality of said card entries.