WO2016175713A1 - Labor-saving tailgate hinge - Google Patents

Labor-saving tailgate hinge Download PDF

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Publication number
WO2016175713A1
WO2016175713A1 PCT/TH2016/000041 TH2016000041W WO2016175713A1 WO 2016175713 A1 WO2016175713 A1 WO 2016175713A1 TH 2016000041 W TH2016000041 W TH 2016000041W WO 2016175713 A1 WO2016175713 A1 WO 2016175713A1
Authority
WO
WIPO (PCT)
Prior art keywords
tailgate
hinge
shaped metal
labor
saving
Prior art date
Application number
PCT/TH2016/000041
Other languages
French (fr)
Other versions
WO2016175713A4 (en
Inventor
Chidchanok HONGLAWAN
Original Assignee
Honglawan Chidchanok
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from TH1501002311A external-priority patent/TH70941B/en
Application filed by Honglawan Chidchanok filed Critical Honglawan Chidchanok
Priority to CN201690000453.7U priority Critical patent/CN208344360U/en
Publication of WO2016175713A1 publication Critical patent/WO2016175713A1/en
Publication of WO2016175713A4 publication Critical patent/WO2016175713A4/en

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05F1/00—Closers or openers for wings, not otherwise provided for in this subclass
    • E05F1/08—Closers or openers for wings, not otherwise provided for in this subclass spring-actuated, e.g. for horizontally sliding wings
    • E05F1/10—Closers or openers for wings, not otherwise provided for in this subclass spring-actuated, e.g. for horizontally sliding wings for swinging wings, e.g. counterbalance
    • E05F1/12—Mechanisms in the shape of hinges or pivots, operated by springs
    • E05F1/1207—Mechanisms in the shape of hinges or pivots, operated by springs with a coil spring parallel with the pivot axis
    • E05F1/1215—Mechanisms in the shape of hinges or pivots, operated by springs with a coil spring parallel with the pivot axis with a canted-coil torsion spring
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05D—HINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS
    • E05D3/00—Hinges with pins
    • E05D3/02—Hinges with pins with one pin
    • E05D2003/025—Hinges with pins with one pin having three knuckles
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2900/00—Application of doors, windows, wings or fittings thereof
    • E05Y2900/50—Application of doors, windows, wings or fittings thereof for vehicles
    • E05Y2900/53—Type of wing
    • E05Y2900/544—Tailboards, tailgates or sideboards opening downwards

Definitions

  • a truck or a pickup truck with the size of at least 1 ton is characterized by a tailgate connectable to the truck body and a locking device to lock said tailgate to the body.
  • Figure 1 illustrates one embodiment of the truck tailgate during closing wherein the tailgate ( 1 ) is connected to the truck body and
  • Figure 2 illustrates one embodiment of the tailgate during opening wherein the internal view shows the tailgate (1) during opening from the truck body and the tailgate (1) is connected to a truck part (2) with a hinge (3) which is one of the device used for opening and closing the tailgate d ).
  • the opening angle of the tailgate (1) is dictated by a sling (4) or hinge
  • the angled hinges can be provided on the two sides of the tailgate (1) wherein one side of the sling (4) or hinge is connected to the truck body (2) and the other side is connected to the tailgate ( 1 ) whereby the shape and design of the sling (4) or angled hinge can vary depending on the manufacturer, but which is commonly designed so that the tailgate can be opened to up to 90° angle.
  • Figure 3 illustrates one embodiment of the tailgate from one truck manufacturer wherein a tailgate (3) which, popularly used in the market, providing a hinge (30) wherein the hinge (30) includes a shaped metal as in Figures 4 and 5 and a stud (6) which are characterized by: a shaped metal (4) used for attaching the hinge (30) to the truck body (2) wherein the shaped metal sheet (4) containing at least two channels for screw insertions so that at least two screws (41, 42) are inserted to connect or secure the hinge (30) to the truck body (2) and at least one stud insertion channel (43) for inserting a stud (6) to secure one shaped metal (4) to another shaped metal (5) to enable opening and closing of tailgate (1 );
  • a second shaped metal (5) connecting the hinge (30) to the tailgate (1) wherein said shaped metal (5) containing at least two screw or nut insertion channels or holes (51 , 52) for securing the hinge (30) to the tailgate (1 ) with screws or nuts and at least one stud insertion channel (53) for inserting the stud (6) to secure one shaped metal (4) to the shaped metal (5) to enable opening and closing of tailgate (1); and
  • a stud (6) provides a rotational and securing point for joining the shaped metals together (4, 5) to form the hinge (30) by inserting through the stud insertion channel (43) of the shaped metal (4) and inserting through the stud insertion channel (53) of the shaped metal (5) to enable opening and closing of tailgate d).
  • Opening of the tailgate d ) with the original hinge (3) may cause the tailgate ⁇ l ) to drop abruptly if the user let the tailgate drop freely. This can be dangerous for users who are within the dropping radius.
  • the act of closing the tailgate ( 1 ) and locking to the truck body (2) may require certain force to lift the heavy tailgate d ) up.
  • the labor-saving truck tailgate hinge according to this invention has been invented to labor-save or to reduce the shock which may be created during the opening and closing of the tailgate and to directly replace the original hinge being used on the truck.
  • the present labor-saving truck tailgate hinge comprises a spring connectable to the hinge wherein the accumulating strain inside the spring shall reduce the shock during opening of the tailgate and, at the same time, the accumulating strain inside the spring shall be converted into the recoil force during closing of the tailgate; thus, labor-save the tailgate lifting and closing tasks.
  • Figure 5 shows the original truck hinge from various perspectives and the hinge (31) which is the new hinge according to this invention as illustrated in
  • a labor-saving truck tailgate hinge utilizes a strain value caused by the rotation of a spring wherein the hinge comprises at least 2 pieces of shaped metal, a coiled spring, and a stud.
  • One of the shaped metal comprises at least 2 screw insertion channels for securing the hinge to the truck body and a stud insertion channel
  • the other shaped metal which connects or secures the hinge to the truck tailgate, comprises at least 2 screw or nut insertion channels for securing the screws or nuts to the tailgate and at least one coiled spring insertion channel for securing the coiled spring and at least one stud insertion channel for inserting the stud for insuring one shaped metal to another shaped metal and the coiled spring together.
  • the aim of the invention is to create a hinge to labor-save the tailgate opening and closing tasks on a truck or a pickup truck wherein the invented hinge takes the advantage of the strain that has been created by rotation of the coiled spring to reduce or tolerate the shock from the tailgate s weigh during opening and closing that could have any negative impacts on any part of the tailgate, truck body, or hinge and to reduce the rate of injury caused by the tailgate to its user within its opening radius.
  • the hinge could directly replace the original hinge that is fixed to the tailgate and the truck body and become a rotational point for the opening and closing of the truck.
  • the present invention is easy to use and install without requiring any further drilling or modification to the truck body and the comprised spring is appropriate and reflects the true weight of the relevant tailgate or purpose of user. Further, the spring of preferred size can be replaced.
  • Figure 1 illustrates one embodiment of the truck tailgate during closing
  • Figure 2 illustrates one embodiment of the truck tailgate during opening
  • Figure 3 illustrates one example of the hinge from a manufacturer
  • Figure 4 illustrates one embodiment of a labor-saving truck tailgate hinge according to this invention
  • Figure 5 illustrates size and comparative distance between the original hinge and the labor-saving tailgate hinge according to this invention
  • Figure 5A illustrates the size and comparative distance of the original hinge
  • Figure 5B illustrates the size and comparative distance of the labor-saving tailgate hinge according to this invention
  • Figure 6 illustrates one embodiment of the first method of incorporating the labor-saving tailgate hinge according to this invention
  • Figure 7 illustrates one embodiment of the second method of incorporating the labor-saving tailgate hinge according to this invention
  • Figure 8 illustrates one embodiment of the completed labor-saving tailgate hinge according to this invention
  • Figure 9 illustrates one embodiment of the labor-saving tailgate hinge according to this invention once connected to the truck body.
  • Figure 10 illustrates one embodiment of the labor-saving tailgate hinge according to this invention during its usage.
  • FIG 4 illustrates one of the embodiment of the labor-saving tailgate hinge according to this invention wherein the hinge (31), as illustrated in Figure 5B, comprising at least 2 shaped metals (8, 9) a coiled spring (1 1 ) and a stud ( 10) wherein:
  • a shaped metal (8) which is a connecting part for connecting or securing the hinge (31 ) to the truck body (2) wherein the shaped metal (8) comprising at least two screw insertion channels for inserting at least two screws (81, 82) for securing the hinge (31) to the truck body (2) and wherein the screw can be inserted through the screw insertion channel to secure the hinge (31) to the truck body (2) and a stud insertion channel (83) to insert at least one stud (10) through said channel in order to secure the shaped metal (8) to a second shaped metal (8) and to enable opening and closing of the tailgate (1 ).
  • One side of the shaped metal (8) that touches or holds upon one end of a coiled spring (124) may be angled to touch or hold upon the other end of the coiled spring ( 124)
  • a second shaped metal (9) which is a connecting part for securing the hinge (31 ) to a tailgate (1)
  • the metal (9) comprising at least two screw or nut insertion channels (91, 92) for inserting at least one screw or nut for securing the hinge (31 ) to the tailgate ( 1 ), a coiled spring-end insertion channel (94) in order for one end of the coiled spring ( 126) to be inserted to secure a coiled spring (1 1) and a stud insertion channel (93) to insert at least one stud (10) in order to secure the shaped metal (8) to shaped metal (9) and to enable opening and closing of the tailgate (1).
  • the coiled spring (11) according to Figure 4 comprising one end of said spring (126), its coiled part (125), and the other end of said spring (124) wherein one end of the spring (126) comprising an end that can be inserted through the coiled spring-end channel (94) of the shaped metal (9) of the hinge (31 ), and the coiled part ( 125), which is adjacently positioned from the end (126) and is the central part of the coiled spring (11), comprising a central cavity for stud (10) insertion.
  • the other end of the coiled spring (124), which is adjacently positioned from the coiled part (125), is an elongated part that touches or holds upon the shaped metal (8) of the hinge (31 ).
  • the means for finding suitable sizes and numbers of coils for tailgates of different types of car models can be calculated from a common spring manufacturing method, which can be based on a conventional theory or through trial and error process, in order to identify the most suitable spring for a specific tailgate.
  • the size and number of coils of spring may vary depending on the size and weight of the tailgate and additional parts on the tailgate such as a scratch prevention sheet or a reverse signal.
  • Spring suitability can be referred to the strain value of spring that can suitability reduce shock which may be generated during opening of tailgate (l) and wherein the tailgate d) can be opened until it lies in parallel to the floor or close to it, but the disengaging speed is not too fast that it may cause shock or damage. At the same time, the strain value shall not be too high that the tailgate (1) cannot be disengaged or opened by its own weight.
  • the result of the accumulating strain inside the coiled spring (10) shall reduce or absorb shock during opening of the tailgate d) and, at the same time, to create a recoil force at closing of the tailgate d) to assist or labor-save the user in lifting up and closing the tailgate d).
  • a stud (10) is used as a rotation point and for securing or connecting the shaped metals (8, 9) and the coiled spring d 1) together in order to create the labor-saving tailgate hinge (31 ) according to this invention wherein at one end of the stud (10) is characterized by a stud head with a diameter larger than the a stud body and the other end of the stud ⁇ 10) is in the channel for locking the stud (10) after inserting through the stud insertion channel (83) of the shaped metal (8), the stud insertion channel (93) of the shaped metal (9) and the coiled part of the spring (125) in accordance to Figure 7 which illustrates one embodiment of a method of installing the labor-saving tailgate hinge according to this invention in the second step.
  • Figure 5 illustrates the size and comparative distance between an original hinge (30) and the labor-saving tailgate hinge (31 ) according to this invention wherein the distance between screws
  • the distance between screws (13) of the shaped metal (4), which is the connecting part that secures the original hinge (30) to the truck body (2) shall be equal to the distance between screws (13) of the shaped metal (4), which is the connecting part that secures the original hinge (30) to the truck body (2). Further, the distance between two holes (14) of the shaped metal (9), which is the connecting part that secures the hinge
  • rotational radius of the labor-saving hinge according to this invention and the original hinge shall be the same wherein the rotational radius of the hinge shall consist of 2 parts, namely the rotational radius of the shaped metal (4, 8) which are connected to the truck body (2) and the rotational radius of the shaped metal (5, 9) which are connected to the tailgate ( 1 )
  • Rotational radius ⁇ 17) is a radius of the shaped metal (4) which is connected to the truck body (2) in the original invention
  • rotational radius (16) is a radius of the shaped metal (8) which is connected to the truck body (2) according to the present invention
  • rotational radius (19) is a radius of the shaped metal (5) which is connected to the tailgate in the original invention
  • a rotational radius d 8) is a radius of the shaped metal (9) which is connected to the tailgate (1) according to this invention.
  • Figure 5A illustrates the size and comparative distance of the original hinge from the conventional manufacturing facility taken from various perspectives wherein the hinge (30) comprising two shaped metals (4, 5) and a stud (6) wherein the rotational radius ( 17) is the rotational radius of the shaped metal (4) which is connected to the truck body (2) and the rotational radius ( 19) which is the rotational radius of the shaped metal (5) which is connected to the tailgate (1 ).
  • Figure 5B illustrates the size and comparative distance of the labor-saving tailgate hinge according to this invention taken from various perspectives wherein the hinge (31 ) comprising at least two shaped metals (8, 9), coiled spring ⁇ 1 1 ) and stud (10) wherein the rotational radius (16) is the rotational radius of the shaped metal (8) which is connected to the truck body (2) according to this invention and the rotational radius ( 18) is the rotational radius of the shaped metal (9) which is connected to the tailgate (1 ) according to this invention.
  • the hinge (31 ) comprising at least two shaped metals (8, 9), coiled spring ⁇ 1 1 ) and stud (10) wherein the rotational radius (16) is the rotational radius of the shaped metal (8) which is connected to the truck body (2) according to this invention and the rotational radius ( 18) is the rotational radius of the shaped metal (9) which is connected to the tailgate (1 ) according to this invention.
  • Figure 6 illustrates the initial step of inserting and connecting the coiled spring d l ) to the shaped metal (9) of the hinge (31 ) wherein one end of the spring (126) is inserted through the coiled spring-end insertion channel (94) of the shaped metal (9) or the hinge (31 ).
  • the spring (1 1) is arranged so that its inner hollow in the middle of the coiled spring (125) is in the position to hold in stud on the corresponding portion of the stud insertion channel (93) of the shaped metal (9) for securing the hinge (31 ) to the tailgate (1).
  • Figure 7 shows one embodiment of the second step of incorporating the labor-saving tailgate hinge according to this invention wherein the shaped metal (9) for securing the hinge (31) to the tailgate (1) that has already incorporated the spring (1 1) is arranged alongside the shaped metal (8) which is used for securing the hinge (31 ) to the truck body (2) so that the stud insertion channel (83) of the shaped metal (8) used for securing the hinge (31 ) to the truck body (2) is in the position to hold in stud on the corresponding or same portion of the stud insertion channel (93) of the shaped metal (9) for securing the hinge (31 ) to the tailgate ( 1 ) and the inner hollow of the coiled spring (125) to enable insertion of the stud ( 10) all the way through the three parts to enable the shaped metals (8, 9) and the coiled spring (1 1) to be secured to or joined together as illustrated in Figure 8.
  • One end of the coiled spring (124) may be touched or leaned upon one part of the shaped metal (8) of hinge (31) so as to receive and transfer the force generated by the coiled spring (11) when the hinge (31 ) is rotated and to hold the coiled spring ( 1 1 ) in place during rotation to generate strain in the spring, which is a force to withstand the weight of tailgate (1 ) during rotation.
  • FIG. 8 illustrates one embodiment of the completed labor-saving tailgate hinge according to this invention wherein the hinge comprising at least two shaped metals (8, 9), a coiled spring (1 1), and a stud (10), wherein the coiled spring is incorporated into the shaped metals (8, 9) of the hinge (31) by which one end of the coiled spring (126) is inserted through the coiled spring-end insertion channel (94) of the shaped metal (9) and is positioned so that the inner cavity in the middle of the coiled part (125) and the stud insertion channels (83, 93) of the shaped metals (8, 9) are aligned on the same stud inserting position in order to insert the stud ( 10) all the way through the three parts including the stud insertion channel (83) of the shaped metal (8) for securing the hinge (31 ) to the truck body (2), the stud insertion channel (93) of the shaped metal (9) for securing the hinge (31) to the tailgate (1 ), and the coiled spring
  • the hinge according to this invention can be removed and re-incorporated, and appropriate size of the spring can be utilized to withstand the true weight of the tailgate or to satisfy certain user s requirements. Different sizes of spring can be replaced according to one s will.
  • the labour-saving tailgate hinge 31 according to this invention can then replace the original hinge and the tailgate can be re-attached to the truck. Nevertheless, the distance between screws that are used to secure the hinge shall be of the same distance as the previous hinge as described above.
  • Figure 9 illustrates one embodiment of the labor-saving tailgate hinge according to this invention once being installed on a truck wherein the shaped metal (8) is used for securing the hinge (31) to the truck body (2) and the shaped metal (9) is used for securing the hinge (31 ) to the tailgate ( 1 ) and the coiled spring ( 11 ) is further incorporated to the hinge (31 ).
  • Figure 10 illustrates one embodiment of the labor-saving tailgate hinge according to this invention during its usage.
  • one end of the coiled spring (124), which is adjacently positioned from the coiled part (125), shall touch upon the shaped metal (8) of the hinge (31 ) and the other end of the coiled spring ( 126), which is connected to the shaped metal (9) of hinge (31 ) shall transfer force to hinge (31 ) at its touchpoint.
  • the hinge (31 ) continuously rotates to open up the tailgate (1 ) the coiled spring d 1 ) is pushed and the strain in the spring ( 1 1 ) is generated and turned into a resisting force that can withstand the weight of tailgate (1) while moving downward.
  • the invention is designed so that the strain or the spring strength is suitable for the weight of the tailgate, taken into account the equipment or accessories which are incorporated to the tailgate (1), to enable the tailgate to be opened fully and in parallel to the floor (90° angle) and, at the same time, the accumulating strain in the spring shall help user to lift up the tailgate or to labor-save during closing of the tailgate (1) to the truck body (2).

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  • Hinges (AREA)
  • Closing And Opening Devices For Wings, And Checks For Wings (AREA)

Abstract

A labor-saving tailgate hinge according to this invention specifically utilizes a coiled spring s strain value generated from a rotational force of the spring to reduce the shock and the accumulating strain to labor-save the user during a truck tailgate opening and closing tasks. The labor-saving tailgate generally comprising at least two shaped metals, a coiled spring, and a stud wherein the coiled spring is inserted or connected to the shaped metals of the hinge so that end of the spring is inserted into a coiled spring-end insertion channel of one shaped metal and the spring is arranged so that the inner hollow of spring and the stud insertion channel of each shaped metal are aligned so that the stud can be completely penetrated through all three parts. The present labor-saving hinge can be used to directly replace the original hinge to eliminate any requirements for further drilling or modification to the car or truck body; it can also be easily installed.

Description

TITLE OF THE INVENTION
LABOR-SAVING TAILGATE HINGE
FIELD OF THE INVENTION
The field of engineering in relation to a labor-saving truck tailgate hinge. BACKGROUND OF THE INVENTION
A truck or a pickup truck with the size of at least 1 ton is characterized by a tailgate connectable to the truck body and a locking device to lock said tailgate to the body. Figure 1 illustrates one embodiment of the truck tailgate during closing wherein the tailgate ( 1 ) is connected to the truck body and Figure 2 illustrates one embodiment of the tailgate during opening wherein the internal view shows the tailgate (1) during opening from the truck body and the tailgate (1) is connected to a truck part (2) with a hinge (3) which is one of the device used for opening and closing the tailgate d ). Accordingly, the opening angle of the tailgate (1) is dictated by a sling (4) or hinge, for example, the angled hinges can be provided on the two sides of the tailgate (1) wherein one side of the sling (4) or hinge is connected to the truck body (2) and the other side is connected to the tailgate ( 1 ) whereby the shape and design of the sling (4) or angled hinge can vary depending on the manufacturer, but which is commonly designed so that the tailgate can be opened to up to 90° angle.
Figure 3 illustrates one embodiment of the tailgate from one truck manufacturer wherein a tailgate (3) which, popularly used in the market, providing a hinge (30) wherein the hinge (30) includes a shaped metal as in Figures 4 and 5 and a stud (6) which are characterized by: a shaped metal (4) used for attaching the hinge (30) to the truck body (2) wherein the shaped metal sheet (4) containing at least two channels for screw insertions so that at least two screws (41, 42) are inserted to connect or secure the hinge (30) to the truck body (2) and at least one stud insertion channel (43) for inserting a stud (6) to secure one shaped metal (4) to another shaped metal (5) to enable opening and closing of tailgate (1 );
a second shaped metal (5) connecting the hinge (30) to the tailgate (1) wherein said shaped metal (5) containing at least two screw or nut insertion channels or holes (51 , 52) for securing the hinge (30) to the tailgate (1 ) with screws or nuts and at least one stud insertion channel (53) for inserting the stud (6) to secure one shaped metal (4) to the shaped metal (5) to enable opening and closing of tailgate (1); and
a stud (6) provides a rotational and securing point for joining the shaped metals together (4, 5) to form the hinge (30) by inserting through the stud insertion channel (43) of the shaped metal (4) and inserting through the stud insertion channel (53) of the shaped metal (5) to enable opening and closing of tailgate d).
Opening of the tailgate d ) with the original hinge (3) may cause the tailgate <l ) to drop abruptly if the user let the tailgate drop freely. This can be dangerous for users who are within the dropping radius. At the same time, the act of closing the tailgate ( 1 ) and locking to the truck body (2) may require certain force to lift the heavy tailgate d ) up.
Further, there have been attempts to create mechanics and methods for labor-saving of the truck tailgates during opening using various materials such as torsion bar and gas spring wherein the material used is dependent of the type of truck and inventing technique used by the related inventor. Another attempt to labor-save at opening and closing is by using the electric motor wherein said invention further requires a motor which wastes more energy and is costly to maintain.
Thus, the labor-saving truck tailgate hinge according to this invention has been invented to labor-save or to reduce the shock which may be created during the opening and closing of the tailgate and to directly replace the original hinge being used on the truck. The present labor-saving truck tailgate hinge comprises a spring connectable to the hinge wherein the accumulating strain inside the spring shall reduce the shock during opening of the tailgate and, at the same time, the accumulating strain inside the spring shall be converted into the recoil force during closing of the tailgate; thus, labor-save the tailgate lifting and closing tasks. In comparison of the original hinge (3) to the hinge (31 ) according to this invention, Figure 5 shows the original truck hinge from various perspectives and the hinge (31) which is the new hinge according to this invention as illustrated in
Figure 5B which shows the hinge from different perspectives. SUMMARY OF THE INVENTION
A labor-saving truck tailgate hinge according to this invention utilizes a strain value caused by the rotation of a spring wherein the hinge comprises at least 2 pieces of shaped metal, a coiled spring, and a stud. One of the shaped metal comprises at least 2 screw insertion channels for securing the hinge to the truck body and a stud insertion channel, whereas the other shaped metal, which connects or secures the hinge to the truck tailgate, comprises at least 2 screw or nut insertion channels for securing the screws or nuts to the tailgate and at least one coiled spring insertion channel for securing the coiled spring and at least one stud insertion channel for inserting the stud for insuring one shaped metal to another shaped metal and the coiled spring together.
The aim of the invention is to create a hinge to labor-save the tailgate opening and closing tasks on a truck or a pickup truck wherein the invented hinge takes the advantage of the strain that has been created by rotation of the coiled spring to reduce or tolerate the shock from the tailgate s weigh during opening and closing that could have any negative impacts on any part of the tailgate, truck body, or hinge and to reduce the rate of injury caused by the tailgate to its user within its opening radius. At the same time, the hinge could directly replace the original hinge that is fixed to the tailgate and the truck body and become a rotational point for the opening and closing of the truck. The present invention is easy to use and install without requiring any further drilling or modification to the truck body and the comprised spring is appropriate and reflects the true weight of the relevant tailgate or purpose of user. Further, the spring of preferred size can be replaced.
BRIEF DESCRIPTION OF THE DRAWINGS
Figure 1 illustrates one embodiment of the truck tailgate during closing;
Figure 2 illustrates one embodiment of the truck tailgate during opening;
Figure 3 illustrates one example of the hinge from a manufacturer;
Figure 4 illustrates one embodiment of a labor-saving truck tailgate hinge according to this invention;
Figure 5 illustrates size and comparative distance between the original hinge and the labor-saving tailgate hinge according to this invention;
Figure 5A illustrates the size and comparative distance of the original hinge;
Figure 5B illustrates the size and comparative distance of the labor-saving tailgate hinge according to this invention; Figure 6 illustrates one embodiment of the first method of incorporating the labor-saving tailgate hinge according to this invention;
Figure 7 illustrates one embodiment of the second method of incorporating the labor-saving tailgate hinge according to this invention;
Figure 8 illustrates one embodiment of the completed labor-saving tailgate hinge according to this invention;
Figure 9 illustrates one embodiment of the labor-saving tailgate hinge according to this invention once connected to the truck body; and
Figure 10 illustrates one embodiment of the labor-saving tailgate hinge according to this invention during its usage.
DETAILED DESCRIPTION OF THE INVENTION
A labor-saving tailgate hinge according to this invention can directly replace the original hinge which is already connected to the truck wherein the present invention is characterized by:
Figure 4 illustrates one of the embodiment of the labor-saving tailgate hinge according to this invention wherein the hinge (31), as illustrated in Figure 5B, comprising at least 2 shaped metals (8, 9) a coiled spring (1 1 ) and a stud ( 10) wherein:
A shaped metal (8) which is a connecting part for connecting or securing the hinge (31 ) to the truck body (2) wherein the shaped metal (8) comprising at least two screw insertion channels for inserting at least two screws (81, 82) for securing the hinge (31) to the truck body (2) and wherein the screw can be inserted through the screw insertion channel to secure the hinge (31) to the truck body (2) and a stud insertion channel (83) to insert at least one stud (10) through said channel in order to secure the shaped metal (8) to a second shaped metal (8) and to enable opening and closing of the tailgate (1 ). One side of the shaped metal (8) that touches or holds upon one end of a coiled spring (124) may be angled to touch or hold upon the other end of the coiled spring ( 124)
A second shaped metal (9) which is a connecting part for securing the hinge (31 ) to a tailgate (1) wherein the metal (9) comprising at least two screw or nut insertion channels (91, 92) for inserting at least one screw or nut for securing the hinge (31 ) to the tailgate ( 1 ), a coiled spring-end insertion channel (94) in order for one end of the coiled spring ( 126) to be inserted to secure a coiled spring (1 1) and a stud insertion channel (93) to insert at least one stud (10) in order to secure the shaped metal (8) to shaped metal (9) and to enable opening and closing of the tailgate (1).
- A coiled spring d 1) wherein the spring has the capacity to reduce shock and labor-save the tailgate (1) during tailgate opening and closing operations. The coiled spring (11) according to Figure 4 comprising one end of said spring (126), its coiled part (125), and the other end of said spring (124) wherein one end of the spring (126) comprising an end that can be inserted through the coiled spring-end channel (94) of the shaped metal (9) of the hinge (31 ), and the coiled part ( 125), which is adjacently positioned from the end (126) and is the central part of the coiled spring (11), comprising a central cavity for stud (10) insertion. The other end of the coiled spring (124), which is adjacently positioned from the coiled part (125), is an elongated part that touches or holds upon the shaped metal (8) of the hinge (31 ).
Nevertheless, the means for finding suitable sizes and numbers of coils for tailgates of different types of car models can be calculated from a common spring manufacturing method, which can be based on a conventional theory or through trial and error process, in order to identify the most suitable spring for a specific tailgate. The size and number of coils of spring may vary depending on the size and weight of the tailgate and additional parts on the tailgate such as a scratch prevention sheet or a reverse signal. Spring suitability can be referred to the strain value of spring that can suitability reduce shock which may be generated during opening of tailgate (l) and wherein the tailgate d) can be opened until it lies in parallel to the floor or close to it, but the disengaging speed is not too fast that it may cause shock or damage. At the same time, the strain value shall not be too high that the tailgate (1) cannot be disengaged or opened by its own weight.
During opening of the tailgate d), the result of the accumulating strain inside the coiled spring (10) shall reduce or absorb shock during opening of the tailgate d) and, at the same time, to create a recoil force at closing of the tailgate d) to assist or labor-save the user in lifting up and closing the tailgate d). A stud (10) is used as a rotation point and for securing or connecting the shaped metals (8, 9) and the coiled spring d 1) together in order to create the labor-saving tailgate hinge (31 ) according to this invention wherein at one end of the stud (10) is characterized by a stud head with a diameter larger than the a stud body and the other end of the stud < 10) is in the channel for locking the stud (10) after inserting through the stud insertion channel (83) of the shaped metal (8), the stud insertion channel (93) of the shaped metal (9) and the coiled part of the spring (125) in accordance to Figure 7 which illustrates one embodiment of a method of installing the labor-saving tailgate hinge according to this invention in the second step.
Figure 5 illustrates the size and comparative distance between an original hinge (30) and the labor-saving tailgate hinge (31 ) according to this invention wherein the distance between screws
(12) of the shaped metal (8), which is the connecting part that secures the hinge (31) to the truck body (2), shall be equal to the distance between screws (13) of the shaped metal (4), which is the connecting part that secures the original hinge (30) to the truck body (2). Further, the distance between two holes (14) of the shaped metal (9), which is the connecting part that secures the hinge
(31 ) to the tailgate ( 1 ) of the present invention, shall equal to the distance between the two holes (15) of the original hinge. Additionally, the rotational radius of the labor-saving hinge according to this invention and the original hinge shall be the same wherein the rotational radius of the hinge shall consist of 2 parts, namely the rotational radius of the shaped metal (4, 8) which are connected to the truck body (2) and the rotational radius of the shaped metal (5, 9) which are connected to the tailgate ( 1 ) Rotational radius < 17) is a radius of the shaped metal (4) which is connected to the truck body (2) in the original invention; rotational radius (16) is a radius of the shaped metal (8) which is connected to the truck body (2) according to the present invention; rotational radius (19) is a radius of the shaped metal (5) which is connected to the tailgate in the original invention; and a rotational radius d 8) is a radius of the shaped metal (9) which is connected to the tailgate (1) according to this invention.
Figure 5A illustrates the size and comparative distance of the original hinge from the conventional manufacturing facility taken from various perspectives wherein the hinge (30) comprising two shaped metals (4, 5) and a stud (6) wherein the rotational radius ( 17) is the rotational radius of the shaped metal (4) which is connected to the truck body (2) and the rotational radius ( 19) which is the rotational radius of the shaped metal (5) which is connected to the tailgate (1 ).
Figure 5B illustrates the size and comparative distance of the labor-saving tailgate hinge according to this invention taken from various perspectives wherein the hinge (31 ) comprising at least two shaped metals (8, 9), coiled spring < 1 1 ) and stud (10) wherein the rotational radius (16) is the rotational radius of the shaped metal (8) which is connected to the truck body (2) according to this invention and the rotational radius ( 18) is the rotational radius of the shaped metal (9) which is connected to the tailgate (1 ) according to this invention.
As for the method of incorporating the labor-saving tailgate hinge according to this invention, Figure 6 illustrates the initial step of inserting and connecting the coiled spring d l ) to the shaped metal (9) of the hinge (31 ) wherein one end of the spring (126) is inserted through the coiled spring-end insertion channel (94) of the shaped metal (9) or the hinge (31 ). In the following step, the spring (1 1) is arranged so that its inner hollow in the middle of the coiled spring (125) is in the position to hold in stud on the corresponding portion of the stud insertion channel (93) of the shaped metal (9) for securing the hinge (31 ) to the tailgate (1).
Figure 7 shows one embodiment of the second step of incorporating the labor-saving tailgate hinge according to this invention wherein the shaped metal (9) for securing the hinge (31) to the tailgate (1) that has already incorporated the spring (1 1) is arranged alongside the shaped metal (8) which is used for securing the hinge (31 ) to the truck body (2) so that the stud insertion channel (83) of the shaped metal (8) used for securing the hinge (31 ) to the truck body (2) is in the position to hold in stud on the corresponding or same portion of the stud insertion channel (93) of the shaped metal (9) for securing the hinge (31 ) to the tailgate ( 1 ) and the inner hollow of the coiled spring (125) to enable insertion of the stud ( 10) all the way through the three parts to enable the shaped metals (8, 9) and the coiled spring (1 1) to be secured to or joined together as illustrated in Figure 8. One end of the coiled spring (124) may be touched or leaned upon one part of the shaped metal (8) of hinge (31) so as to receive and transfer the force generated by the coiled spring (11) when the hinge (31 ) is rotated and to hold the coiled spring ( 1 1 ) in place during rotation to generate strain in the spring, which is a force to withstand the weight of tailgate (1 ) during rotation.
Figure 8 illustrates one embodiment of the completed labor-saving tailgate hinge according to this invention wherein the hinge comprising at least two shaped metals (8, 9), a coiled spring (1 1), and a stud (10), wherein the coiled spring is incorporated into the shaped metals (8, 9) of the hinge (31) by which one end of the coiled spring (126) is inserted through the coiled spring-end insertion channel (94) of the shaped metal (9) and is positioned so that the inner cavity in the middle of the coiled part (125) and the stud insertion channels (83, 93) of the shaped metals (8, 9) are aligned on the same stud inserting position in order to insert the stud ( 10) all the way through the three parts including the stud insertion channel (83) of the shaped metal (8) for securing the hinge (31 ) to the truck body (2), the stud insertion channel (93) of the shaped metal (9) for securing the hinge (31) to the tailgate (1 ), and the coiled spring d 1 ) through its coiled part (125).
In any case, the hinge according to this invention can be removed and re-incorporated, and appropriate size of the spring can be utilized to withstand the true weight of the tailgate or to satisfy certain user s requirements. Different sizes of spring can be replaced according to one s will.
As for a method of installing the hinge (31) according to this invention on a truck, the process depending on the original hinge characteristic and the truck model, but generally one side of the hinge is connected or secured to the truck body and the other side is secured to the tailgate whereby the side securing to the truck body can be detached to remove the tailgate from the truck. The labour-saving tailgate hinge 31 according to this invention can then replace the original hinge and the tailgate can be re-attached to the truck. Nevertheless, the distance between screws that are used to secure the hinge shall be of the same distance as the previous hinge as described above.
Figure 9 illustrates one embodiment of the labor-saving tailgate hinge according to this invention once being installed on a truck wherein the shaped metal (8) is used for securing the hinge (31) to the truck body (2) and the shaped metal (9) is used for securing the hinge (31 ) to the tailgate ( 1 ) and the coiled spring ( 11 ) is further incorporated to the hinge (31 ). Figure 10 illustrates one embodiment of the labor-saving tailgate hinge according to this invention during its usage. During the initial rotation-based opening of the tailgate (1 ), one end of the coiled spring (124), which is adjacently positioned from the coiled part (125), shall touch upon the shaped metal (8) of the hinge (31 ) and the other end of the coiled spring ( 126), which is connected to the shaped metal (9) of hinge (31 ) shall transfer force to hinge (31 ) at its touchpoint. When the hinge (31 ) continuously rotates to open up the tailgate (1 ), the coiled spring d 1 ) is pushed and the strain in the spring ( 1 1 ) is generated and turned into a resisting force that can withstand the weight of tailgate (1) while moving downward. It is preferable that the invention is designed so that the strain or the spring strength is suitable for the weight of the tailgate, taken into account the equipment or accessories which are incorporated to the tailgate (1), to enable the tailgate to be opened fully and in parallel to the floor (90° angle) and, at the same time, the accumulating strain in the spring shall help user to lift up the tailgate or to labor-save during closing of the tailgate (1) to the truck body (2).

Claims

1. A labor-saving tailgate hinge which is generally characterized by a set of shaped metals and a stud wherein one shaped metal which is used for securing the hinge to a truck body comprising a stud insertion channel for inserting the stud and securing said shaped metal to a second shaped metal which secures the hinge to a truck tailgate, and which collectively operate as a rotation point for opening and closing of the tailgate, wherein the labor-saving tailgate hinge according to this invention specifically comprising: at least two shaped metals (8, 9) wherein at least one shaped metal (9) secures a hinge (31 ) to a truck tailgate ( 1 ) and at least one shaped metal (8) secures the hinge
(31 ) to a truck body (2);
- a stud (10);
a coiled spring ( 1 1 ) wherein the coiled spring ( 1 1 ) is connected to the shaped metals (8, 9) of a hinge (31) so that one end of the spring (126) is inserted into the coiled spring-end insertion channel (94) of the shaped metal (9) and wherein said shaped metal (9) is arranged so that the inner hollow of the coiled spring ( 125) and a set of stud insertion channels (83, 93) of a set of shaped metals (8, 9) are aligned on a stud-inserting position to completely insert the stud (10) through the three parts, and wherein the other end of the coiled spring ( 124) is in contact or touched upon one part of the shaped metal (8) of the hinge (31 ).
2. The labor-saving tailgate hinge according to claim 1 wherein the shaped metal (8) is used as a connecting part for securing the hinge (31) to the truck body (2) and the shaped metal
(9) is used as a connecting part for securing the hinge (31) to the truck tailgate (1 ).
3. The labor-saving tailgate hinge according to any of claims 1 or 2 wherein the shaped metal (8) further comprising at least two screw insertion channels for at least two screws (81, 82) to secure the hinge (31) to the truck body (2).
4. The labor-saving tailgate hinge according to any of claims 1 or 2 wherein the shaped metal (8) further comprising at least one stud insertion channel (83) for at least one stud
( 10) to secure the shaped metal (8) to the shaped metal (9).
5. The labor-saving tailgate hinge according to any of claims 1 or 2 wherein the shaped metal (8) further comprising, on one part, a point of contact for one end of the coiled spring (124) that is slanted or angled in shape.
6. The labor-saving tailgate hinge according to claim 3 wherein the screws are inserted into or connected to screw insertion channels for securing the hinge (31 ) to the truck body (2).
7. The labor-saving tailgate hinge according to any of claims 1 or 2 wherein the shaped metal (9) further comprising at least two screw or nut insertion channels (91 , 92) for inserting screws and nuts to secure the hinge (31 ) to the tailgate < 1 ).
8. The labor-saving tailgate hinge according to any of claims 1 or 2 wherein the shaped metal (9) further comprising a coiled spring-end insertion channel (94) for inserting one end of the coiled spring (126) to secure the coiled spring (1 1).
9. The labor-saving tailgate hinge according to any of claims 1 or 2 wherein the shaped metal (9) further comprising a stud insertion channel (93 ) for at least one stud < 10) to secure one shaped metal (8) to the other shaped metal (9) in order to enable opening and closing of the tailgate d).
10. The labor-saving tailgate hinge according to claim 1 wherein the coiled spring ( 1 1 ) is used to reduce shock created from opening or closing the tailgate (1 ) wherein the coiled spring (1 1) further comprising one end of the spring (126), the coiled middle part (125), and the other end of the spring (124).
1 1. The labor-saving tailgate hinge according to any of claims 1 or 10 wherein one end of the coiled spring (126) can be inserted into the coiled spring-end insertion channel (94) of one shaped metal (9) of the hinge (31 ).
12. The labor-saving tailgate hinge according to any of claims 1 or 10 wherein the coiled part of the spring (125), which is adjacently positioned from one end of the spring (126), is characterized by a set of twirls or coils with inner hollow for inserting the stud (10) through.
13. The labor-saving tailgate hinge according to any of claims 1 or 10 wherein the other end of the spring ( 124), which is adjacently positioned from the coiled part (125), is elongated so as to come into contact with the shaped metal (8) of the hinge (31).
14. The labor-saving tailgate hinge according to any of claims 1, 1 1, or 13 wherein the size and number of coils of the spring (1 1) can vary and directly correlates to the size and weight of the tailgate and any equipment or accessories incorporating into the tailgate.
15. The labor-saving tailgate hinge according to claim 1 wherein the stud (10) is a rotation and securing point for securing the shaped metals (8, 9) and the coiled spring ( 1 1) together to create the hinge (31 ) wherein one end of the stud ( 10) has a diameter greater than its own body.
16. The labor-saving tailgate hinge according according to claim 1 wherein one end of the stud (10) fits into the channel comprising a locking ring to lock or secure said stud (10) in place.
PCT/TH2016/000041 2015-04-27 2016-04-22 Labor-saving tailgate hinge WO2016175713A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201690000453.7U CN208344360U (en) 2015-04-27 2016-04-22 Labor-saving baffle hinge

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
TH1501002311 2015-04-27
TH1501002311A TH70941B (en) 2015-04-27 Hinge for effort to use the tailgate of a pickup truck

Publications (2)

Publication Number Publication Date
WO2016175713A1 true WO2016175713A1 (en) 2016-11-03
WO2016175713A4 WO2016175713A4 (en) 2016-12-22

Family

ID=57199350

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/TH2016/000041 WO2016175713A1 (en) 2015-04-27 2016-04-22 Labor-saving tailgate hinge

Country Status (2)

Country Link
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WO (1) WO2016175713A1 (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004066896A (en) * 2002-08-02 2004-03-04 Sanko Kiki Co Ltd Auxiliary mechanism for opening and closing gate panel of truck
AU2004100407A4 (en) * 2004-05-27 2004-07-01 Triple M Holdings Pty Ltd Hinge assembly
US20040262938A1 (en) * 2003-06-25 2004-12-30 Ford Global Technologies Llc Lift assisted tailgate system for automotive vehicle
KR20090020804A (en) * 2007-08-24 2009-02-27 현대자동차주식회사 Hinge structure for deck gate of commercial vehicle
EP2030873A2 (en) * 2007-08-28 2009-03-04 Ventra Group Inc. A hinge mechanism for a vehicle

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004066896A (en) * 2002-08-02 2004-03-04 Sanko Kiki Co Ltd Auxiliary mechanism for opening and closing gate panel of truck
US20040262938A1 (en) * 2003-06-25 2004-12-30 Ford Global Technologies Llc Lift assisted tailgate system for automotive vehicle
AU2004100407A4 (en) * 2004-05-27 2004-07-01 Triple M Holdings Pty Ltd Hinge assembly
KR20090020804A (en) * 2007-08-24 2009-02-27 현대자동차주식회사 Hinge structure for deck gate of commercial vehicle
EP2030873A2 (en) * 2007-08-28 2009-03-04 Ventra Group Inc. A hinge mechanism for a vehicle

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WO2016175713A4 (en) 2016-12-22

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