JP2014145184A - Hood lock device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a hood lock device which shows excellent operability in opening a hood.SOLUTION: A primary latch 20 locks a hood 2 in a fully-closed position. When the primary latch 20 is swung so as to raise a striker 12, the hood 2 is located at a first half-open position (P1). A user inserts his or her finger into a gap formed between a front edge of the hood 2 and a vehicle body, to swing a handle lever 32 of a lock release lever 16 from a lower position to an upper position (U) with a fingertip. A lever-side engaging part 34 swings downward, and engages with a latch-side engaging part 2206 of a secondary latch 22. The latch-side engaging part 2206 is swung from a lock position to a lock release position (l), to allow the hood 2 to swing to the fully-opened position (the striker 12 moving upward). The user raises the hood 2 upward while swinging the handle lever 32 to the upper position (U) with his or her finger, so as to open the hood 2.

Description

  The present invention relates to a hood lock device.

2. Description of the Related Art Conventionally, a front-open front hood (hereinafter simply referred to as a hood) vehicle is provided with a hood lock device that locks the hood in a fully closed position.
As such a hood lock device, Patent Document 1 discloses a device including a striker attached to a hood, a latch unit attached to the vehicle body side, and a lock release lever attached to the vehicle body side. Has been.
The latch unit includes a primary latch and a secondary latch, and the primary latch is locked to the striker at a position where the hood is fully closed to lock the hood.
The primary latch is swung by operation from the passenger compartment to disengage from the striker, and the lock at the fully closed position is released. At the same time, the striker is pushed up by the primary latch, and the hood is in the first half-open position where the front side is slightly opened. In the first half-open state, a finger can be inserted from the front side of the hood, and the lock release lever can be operated.

The secondary latch is engaged with the striker at the second half-open position where the hood is slightly opened from the first half-open position, and prevents further opening of the hood.
Therefore, the secondary latch prevents the hood from changing from the first half-open position to the full-open position due to wind pressure when the primary latch is erroneously operated during high-speed traveling, and ensures a forward view.
The lock release lever is operated by a finger inserted from the front side of the hood when the hood is in the first half-open position, thereby swinging the secondary latch to the retracted position and swinging the hood to the fully open position. Motion is allowed.
That is, in order for the user to change the hood from the fully closed position to the fully open position, first, the hood is set to the first half-open position by an operation from the passenger compartment.
Next, one hand is inserted through the gap formed between the front edge of the hood and the vehicle body, and the lock release lever is operated to allow the hood to swing to the fully open position.
Next, while maintaining that state, the hood is lifted with the other hand to a fully open position.

Japanese Examined Patent Publication No. 62-23153

Therefore, in the above prior art, when the hood is set to the fully open position, it is necessary to operate with both hands of operating the lock release lever attached to the vehicle body side with one hand and lifting the hood with the other hand. The operation when opening the hood is complicated.
The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a hood lock device that is advantageous in improving operability when the hood is opened.

  In order to achieve the above object, the present invention provides a hood supported by the vehicle body so as to be swingable between a fully closed position that covers a front space of the vehicle body and a fully open position that opens the front space, A striker provided on the lower surface of the front portion of the hood, supported by the vehicle body, and engaged with the striker to lock the hood in the fully closed position, and release the lock in conjunction with an operation from the vehicle interior. And a primary latch that raises the hood from the fully closed position to the first half-open position, and is supported by the vehicle body so as to be swingable between a locked position and an unlocked position, and engages with the striker at the locked position. As a result, the hood cannot be swung upward from the second half-open position located above the first half-open position, and the hood can be swung to the full-open position at the unlocked position. Allow A hood lock device comprising a secondary latch, wherein a lock release lever is provided on the lower surface of the front portion of the hood so as to be swingable up and down, and the lock release lever is at a lower position away from the lower surface of the hood. The secondary latch is moved from the locked position to the unlocked position by being engaged with the secondary latch at an upper position that is separated from the secondary latch and above the lower position.

According to the first aspect of the present invention, the lock release lever is provided on the lower surface of the front portion of the hood, and the lock release lever is swung from the lower position to the upper position, so that the secondary latch is swung from the lock position to the lock release position. When the hood is in the fully open position, it can be operated with a simple one-hand operation such as operating upward with the hand inserted under the front edge of the hood, improving operability when opening the hood. It is advantageous in planning.
According to the second aspect of the present invention, since the latch side engagement portion is provided in the secondary latch and the lock release lever is constituted by the handle lever and the lever side engagement portion, the configuration of the secondary latch and the lock release lever is simplified. This is advantageous in achieving this.
According to the third aspect of the present invention, the lever side engaging portion is composed of a plurality of divided bodies arranged so as to be detachable from each other. Since the length of the part can be adjusted, it is not necessary to design and manufacture a lock release lever for each vehicle type, which is advantageous for cost reduction.

(A) is explanatory drawing which looked at the state which the hood 2 was locked in the fully closed position (P0) from the side of a vehicle, (B) is a BB arrow directional view of (A). It is C arrow line view of FIG. 1 (A). (A) is explanatory drawing which looked at the state where the hood 2 was located in the 1st half-open position (P1) from the side of a vehicle, (B) is a BB arrow directional view of (A). (A) is the explanatory view which looked at the state where lock release lever 16 was operated in the 1st half open position (P1) of hood 2 from the side of vehicles, and (B) is a BB line view of (A). is there. (A) is explanatory drawing which looked at the state by which the food | hood 2 is open | released upwards from the side of a vehicle, (B) is a BB arrow directional view of (A). (A) is a perspective view of the handle lever 32, (B) is a B arrow view of (A). (A) is a perspective view of the division body 38 which comprises the lever side engaging part 34, (B) is explanatory drawing which shows the state with which the several division body 38 was combined. FIG. 6 is an exploded perspective view of the lock release lever 16.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
As shown in FIG. 1A, the hood 2 of the vehicle is a front opening whose rear portion is supported by the vehicle body, and opens the front space and a fully closed position that covers the front space of the vehicle body in front of the driver's seat. It can swing between fully open positions.
The hood 2 includes a hood outer 7 that forms an upper surface thereof and a hood inner 8 that forms a lower surface thereof.
A front end upper bar 4 extends in the vehicle width direction above the front end of the vehicle body front space, and a hood lock stay 6 extends downward from an intermediate portion in the extending direction of the front end upper bar 4. doing.

As shown in FIGS. 1A and 1B, the hood lock device 10 includes a striker 12 attached to the front lower surface of the hood 2, a latch unit 14 attached to the vehicle body side, and a hood 2 side. And an unlocking lever 16 attached thereto.
The latch unit 14 includes a base 18, a primary latch 20, and a secondary latch 22.
In addition, in order to simplify drawing, illustration of the base 18 is abbreviate | omitted in (B) of FIGS. 1-4.

  The striker 12 is made of a metal round bar, and as shown in FIG. 1 (A), two leg portions 1202 that are suspended downward from a place spaced in front of and behind the hood inner 8 on the lower surface of the hood 2; And an engaging shaft portion 1204 for connecting the lower ends of both leg portions 1202.

The base 18 is made of a metal plate and is fastened to the hood lock stay 6 on the vehicle body side via a bolt (not shown).
The base 18 is formed with a base-side engagement groove 1802 that allows the engagement shaft portion 1204 to move. The base-side engagement groove 1802 extends vertically and is open upward.

  The primary latch 20 and the secondary latch 22 are supported by the base 18 so as to be swingable, and are each formed of a metal plate material.

As shown in FIG. 1B, the primary latch 20 is supported on the base 18 so as to be swingable in the vehicle width direction via a support shaft 24 extending in the front-rear direction of the vehicle body.
The primary latch 20 includes first and second arm portions 2002 and 2004 that face each other.
The primary latch 20 locks the hood 2 in the fully closed position (P0) as shown in FIG. 1 (A) when the first arm portion 2002 is engaged with the striker 12 in the base side engaging groove 1802. .
Further, as shown in FIG. 3 (B), the primary latch 20 swings in conjunction with the operation from the vehicle interior, releases the lock, and the second arm portion 2004 pushes up the striker 12 so that the hood 2 is fully moved. The position is raised from the closed position (P0) to the first half-open position (P1).

As shown in FIGS. 1A and 1B, the secondary latch 22 is supported by the base 18 so as to be swingable in the vehicle width direction via a support shaft 26 extending in the front-rear direction of the vehicle body. It swings between a lock position (A) shown in B) and a lock release position (B) shown in FIG.
The secondary latch 22 includes an arm part 2202, a claw part 2204 projecting from the tip of the arm part 2202 toward the primary latch 20 in the vehicle width direction, and a latch projecting from the front part of the arm part 2202 to the front of the vehicle body. Side engaging portion 2206.
As shown in FIG. 3 (B), the secondary latch 22 has a second position located above the first half-open position (P1) by engaging the claw portion 2204 with the striker 12 at the lock position (A). The hood 2 cannot be swung upward from the half-open position. For example, even when the driver forgets that the hood 2 is positioned at the first half-open position (P1), the hood 2 is prevented from being fully opened and the front view is secured. .
Further, as shown in FIG. 4B, the secondary latch 22 is swung by the operation of the driver's lock release lever 16 to the lock release position (B). In the unlocked position (B), the claw portion 2204 is retracted from the movement locus of the engagement shaft portion 1204 and allows the hood 2 to swing to the fully open position.
Various conventionally known structures can be employed for the latch unit 14 including the primary latch 20 and the secondary latch 22 configured as described above.

The lock release lever 16 is separated from the secondary latch 22 at the lower position (D) as shown in FIGS. 3 (A) and 3 (B), and as shown in FIGS. 4 (A) and 4 (B). The secondary latch 22 is swung from the lock position (A) to the lock release position (B) by engaging with the secondary latch 22 in U).
As shown in FIGS. 1A and 2, the lock release lever 16 is attached to the front portion of the hood inner 8 on the lower surface of the hood 2 via an attachment member 28.
The unlocking lever 16 has a lower position (D) that is spaced downward from the lower surface of the hood 2 via a support shaft 30 that is axially oriented in the vehicle width direction, and an upper position (above the lower position (D) ( U) and can swing up and down.
The support shaft 30 protrudes from the attachment member 28, and the attachment member 28 is attached to the hood inner 8 by attaching the claw portion 2802 to the notch of the hood inner 8.

More specifically, as shown in FIGS. 1A and 2, the lock release lever 16 includes a handle lever 32 and a lever side engaging portion 34.
The handle lever 32 can swing up and down between a lower position (D) and an upper position (U).
The handle lever 32 is supported at its rear portion by a support shaft 30 and is always urged to a lower position (D) by a torsion coil spring 36 wound around the support shaft 30.
The lower position (D) of the handle lever 32 is determined by the lever side engaging portion 34 coming into contact with an appropriate portion of the hood inner 8.
As shown in FIGS. 2, 6 (A) and 6 (B), at the rear end of the handle lever 32 across the support shaft 30, there are a space portion 3202 with one end in the vehicle width direction open, and a space portion 3202. An engaging groove 3204 that communicates is formed. In FIGS. 6A and 6B, reference numeral 3206 denotes a bearing hole through which the support shaft 30 is inserted.

The lever side engaging portion 34 is provided at the rear end of the handle lever 32 as shown in FIGS.
The lever side engaging portion 34 has a length extending from the rear end of the handle lever 32 toward the latch side engaging portion 2206 at the rear of the vehicle body, and can be engaged with the latch side engaging portion 2206.
The lever side engaging portion 34 may be provided integrally with the handle lever 32. However, in the present embodiment, as shown in FIGS. 2 and 8, the lever side engaging portions 34 are detachable from each other. And a plurality of divided bodies 38 arranged in the length direction (front-rear direction of the vehicle body).

  As shown in FIGS. 7A and 7B, each divided body 38 includes a front plate portion 3802 positioned on the front side of the vehicle body, a rear plate portion 3804 facing the front plate portion 3802, and the front plate portions. 3802 and an upper plate 3806 and a lower plate 3808 that connect the upper and lower portions of the rear plate 3804, and a space 3810 provided between the plates 3802, 3804, 3806, and 3808 and having one end opened in the vehicle width direction. And an inclined plate portion 3812 that closes the ends in the vehicle width direction of the plate portions 3802, 3804, 3806, and 3808.

  The inclined plate portion 3812 is a portion that engages with the latch side engaging portion 2206, and as shown in FIGS. 3A, 3 </ b> B, 4 </ b> A, and 4 </ b> B, the lever side engaging portion 34. Moves substantially downward in the vertical direction, thereby applying a force in the vehicle width direction from the inclined plate portion 3812 to the latch side engaging portion 2206, and smoothly swinging the secondary latch 22 in the vehicle width direction.

  The front plate portion 3802 is provided with a T-shaped convex portion 3820 comprising a web W and a flange F, and the rear plate portion 3804 is formed with an engagement groove 3822 that communicates with the space portion 3810 and is coupled to the web W. Has been. The convex portions 3820 and the engaging grooves 3822 extend in the vehicle width direction.

The division bodies 38 are coupled as follows.
As shown in FIG. 8, first, the flange F of the front plate portion 3802 of the first divided body 38 is inserted into the space 3202 at the rear end of the handle lever 32, and the web W is engaged with the engagement groove at the rear end of the handle lever 32. 3204 is inserted. Thus, the rear end wall portion of the handle lever 32 is sandwiched between the front plate portion 3802 of the divided body 38 and the flange F, and the first divided body 38 is detachably coupled to the rear end of the handle lever 32. The
Next, the flange F of the front plate portion 3802 of the second divided body 38 is inserted into the space 3810 of the first divided body 38, and the web W is engaged with the engagement groove 3822 of the first divided body 38. Inserted into. Accordingly, the rear plate 3804 of the first divided body 38 is sandwiched between the front plate 3802 and the flange F of the second divided body 38, and the second divided body 38 is the first divided body. 38 is releasably coupled.
In the present embodiment, the lever-side engagement portion 34 is configured by the three divided bodies 38 being detachably coupled to the rear end of the handle lever 32 in this manner.

In addition, when the lever side engaging part 34 is lengthened, the number of divided bodies 38 to be coupled may be increased. When the lever side engaging part 34 is shortened, the web W is extracted from the engaging groove 3822, and What is necessary is just to reduce the number of the division bodies 38 couple | bonded.
The extending direction of the engaging groove 3204 of the handle lever 32, the convex portion 3820 of the divided body 38, and the engaging groove 3822 is determined by the reaction force received from the latch side engaging portion 2206 of the secondary latch 22 when the handle lever 32 is operated. The engagement groove 3204 of the handle lever 32 and the protrusion 3820 of the divided body 38 or the engagement groove 3822 and the protrusion 3820 of the divided body 38 may not be disengaged. Therefore, the extending direction of the engaging groove 3204 of the handle lever 32, the convex portion 3820 of the divided body 38, and the engaging groove 3822 may be the vertical direction.

Next, an operation when the user opens the hood 2 from the fully closed position (P0) to the fully open position will be described.
As shown in FIGS. 1A and 1B, the hood 2 is locked in the fully closed position (P0) by the primary latch 20 in advance.
Here, as shown in FIGS. 3 (A) and 3 (B), the striker 12 is raised by swinging the primary latch 20 by the user's operation in the driver's seat in the driver's seat, and the hood 2 is first opened halfway. Position (P1). As a result, a gap is formed between the front edge of the hood 2 and the vehicle body.
Next, as shown in FIGS. 4A and 4B, the user inserts a finger into the gap, and moves the handle lever 32 of the lock release lever 16 from the lower position (D) to the upper position (U) with the fingertip. Rock.
Then, the lever side engaging portion 34 swings downward and engages with the latch side engaging portion 2206 of the secondary latch 22, and the latch side engaging portion 2206 moves from the lock position (A) to the lock release position (B). The hood 2 is allowed to swing to the fully open position (movement of the striker 12 upward).
In this state, as shown in FIGS. 5A and 5B, the user lifts the hood 2 upward while keeping the handle lever 32 swung to the upper position (U) with a finger. 2 is released.
As shown in FIG. 5B, when the hood 2 is opened by a predetermined opening, the lever side engaging portion 34 is separated above the latch side engaging portion 2206, so that the handle lever 32 is moved to the upper position ( U) does not need to be swung, and the hood 2 is fully opened by simply lifting the hood 2 upward.

Next, an operation when the user closes the hood 2 from the fully open position to the fully closed position (P0) will be described.
When the hood 2 is swung from the fully open position to the fully closed position (P0), the engagement shaft portion 1204 of the striker 12 comes into contact with the claw portion 2204 of the secondary latch 22 so that the secondary latch 22 is temporarily moved from the locked position (A). After swinging to the unlocked position (b), it returns to the locked position (b) again.
Further, when the engagement shaft portion 1204 of the striker 12 abuts on the second arm portion 2004 of the primary latch 20, the primary latch 20 swings, and the first arm portion 2002 becomes the striker 12 in the base side engagement groove 1802. By engaging, the hood 2 is locked in the fully closed position (P0).
In this state, as shown in FIG. 1A, the handle lever 32 of the unlocking lever 16 is in the lower position (D), and the lever side engaging portion 34 is located at a position away from the latch side engaging portion 2206 upward. To position.

As described above, according to the present embodiment, the lock release lever 16 is provided on the lower surface of the front portion of the hood 2, and the lock release lever 16 is swung from the lower position (D) to the upper position (U). The secondary latch 22 is swung from the lock position (A) to the lock release position (B).
Therefore, while operating the lock release lever 16 with the hand inserted under the front edge of the hood 2, the hood 2 is lifted upward in the operation direction, and the hood 2 is moved from the first half-open position (P 1) to the fully-open position. Can be swung.
Therefore, when the hood 2 is set to the fully open position, the complicated operation of operating the lock release lever 16 on the vehicle body side with one hand and lifting the hood 2 with the other hand as in the prior art becomes unnecessary. Only a simple one-handed operation such as operating upward with a hand inserted underneath is advantageous, which is advantageous in improving operability when the hood 2 is opened.

  Further, since the latch side engagement portion 2206 is provided in the secondary latch 22 and the lock release lever 16 is constituted by the handle lever 32 and the lever side engagement portion 34, the configuration of the secondary latch 22 and the lock release lever 16 can be simplified. It is advantageous in planning.

Further, since the design and dimensions of the vehicle body including the hood 2 are different depending on the vehicle type, the positions of the striker 12, the primary latch 20, and the secondary latch 22 in the vehicle front-rear direction are also different depending on the vehicle type.
Therefore, it becomes necessary to change the length of the lock release lever 16 for each vehicle type and to design and manufacture, which is disadvantageous for cost reduction.
However, in this Embodiment, the lever side engaging part 34 is comprised by the some division body 38 arranged so that engagement / disengagement was mutually possible. Therefore, even when the unlocking lever 16 having a different length depending on the vehicle type is required, the length of the lever side engaging portion 34 can be adjusted by increasing or decreasing the number of the divided bodies 38 to be used. Therefore, it is not necessary to design and manufacture the lock release lever 16 for each vehicle type, which is advantageous for cost reduction.

  2 ... Hood, 10 ... Hood lock device, 12 ... Striker, 16 ... Lock release lever, 20 ... Primary latch, 22 ... Secondary latch, 2206 ... Latch side engagement part, 32 ... Handle lever , 34... Lever side engaging portion, 38.

Claims (3)

A hood supported by the vehicle body so as to be swingable between a fully closed position that covers the front space of the vehicle body and a fully open position that opens the front space;
A striker provided on the front lower surface of the hood;
The hood is supported by the vehicle body and engaged with the striker to lock the hood in the fully closed position, and the lock is released in conjunction with an operation from inside the vehicle compartment, and the hood is moved from the fully closed position to the first position. A primary latch that raises to a half-open position;
From the second half-open position, which is supported by the vehicle body so as to be swingable between a lock position and a lock release position, and is engaged with the striker at the lock position and located above the first half-open position. A hood lock device comprising a secondary latch that disables swinging of the hood upward and allows swinging of the hood to the fully open position at the unlocked position,
A lock release lever is provided on the lower surface of the front portion of the hood so as to be swingable up and down,
The unlocking lever is separated from the secondary latch at a lower position away from the lower surface of the hood, and is engaged with the secondary latch at an upper position higher than the lower position. Swing from the locked position to the unlocked position,
A food lock device characterized by that. The secondary latch includes a claw portion that engages with the striker at the lock position and disables the swinging of the hood above the second half-open position, and a latch-side engagement portion.
The lock release lever includes a handle lever that can swing up and down between the lower position and the upper position, and a lever side engagement portion that is provided on the handle lever and can be engaged with the latch side engagement portion. Comprising
The hood lock device according to claim 1. The lever side engaging portion has a length extending from the handle lever toward the latch side engaging portion,
The lever side engaging portion is composed of a plurality of divided bodies arranged in the length direction so as to be detachable from each other.
The hood lock device according to claim 2.

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