JPH02112575A - Locking device for back door of van type automobile - Google Patents

Abstract

PURPOSE:To ensure safety by preventing the rotation and engagement of the latches or ratchets of locking devices when the left and right locking devices locking a lower metallic door to the car body side are locked incompletely. CONSTITUTION:When both a right locking device 10 and a left locking device locking a lower metallic door 4 to the car body side are locked incompletely and either one is locked imperfectly, the state in which the nose of the stopper 46 of the locking device 9 is abutted against the outer circumferential surface of a latch 12. The latch 12 or a ratchet 13 is not turned, and engagement with the ratchet 12 of the striker of an upper glass door 3 is prevented. Accordingly, damage by door-opening operation can be obviated.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a bar lock neck for a van-type vehicle.

(Prior art) Japanese Utility Model Publication No. 47-31540 discloses that a back door of a van-type automobile is formed by an upper glass door and a lower metal door, and an opening door is provided on the inside of the vehicle body at a position between the left and right of the lower metal door. A door opening device with a handle is installed, a door opening device with a door opening handle is installed on the outside of the lower edge of the upper glass door at a middle position between the left and right, and a right locking device that locks the lower metal door is installed on the vehicle body side. A back door locking device for a van-type automobile is described which includes a left locking device, a right locking device that locks the upper glass door, and a left locking device.

(Problems to be Solved by the Invention) The known back door lock device for a van-type vehicle has a structure in which the lower metal door cannot be opened until the upper glass door is opened, but the lower metal door cannot be half-locked. No measures have been taken for poetry.

In other words, when locking the upper glass door to the lower metal door,
If the lower metal door is half-locked, the upper glass door cannot be fully locked.Therefore, when the lower metal door is half-locked, it is better to disable the upper glass door from being locked. .

The present invention uses a simple mechanism to prevent the upper glass door from being locked when the lower metal door is half-locked.

(Means for Solving the Problems) Therefore, in the present invention, the back door 2 of the van-type automobile 1 is formed by an upper glass door 3 and a lower metal door 4, and the lower metal door 4 has a An opening handle 5 for opening the lower metal door 4 and an unlocking button 6 for opening the upper glass door 3 are attached, a striker 8 is fixed to the upper glass door 3, and a striker 8 is fixed to the lower metal door 4. is provided with a locking device 9 that the striker 8 engages with, a right locking device filo and a left locking device ll that lock the lower metal door 4 to the vehicle body side, and the striker 8 and the locking device 9 are secured to each other by the left and right locking devices. A pack door of a van-type automobile in which the latch ν or the ratchet 13 of the locking device 9 does not rotate and engage when both the locking devices 1O111 are incompletely locked or when either one is incompletely locked. It is a locking device.

(Embodiment) An embodiment of the present invention will be described with reference to the drawings. Reference numeral 1 indicates a van-type automobile, 2 a back door, 3 an upper glass door of the back door 2, and 4 a lower metal door of the back door 2.

A door opening device 7 having a door opening handle 5 and an unlocking button 6 is attached to the outside of the lower metal door 4 at a middle position between the left and right sides. A striker 8 is fixed at the middle position between the left and right sides of the lower edge of the upper glass door 3.

FIG. 2 is a layout diagram of four examples of lower metal doors, where 9 is a locking device with which the striker 8 engages, 10 is a right locking device that locks the lower metal door 4 to the vehicle body, and 11 is the same left locking device. .

The locking device 9 includes a latch member that engages with the striker 8 and rotates, and a ratchet 13 that prevents the latch from reversing! 4 and a shaft 15, a bent piece 16 is formed on one side of the φ ratchet 2 13.
The claw 18 of the lever 17 engages with the bent piece 16, and the lever 17
On the opposite side of the claw 18 is a rod 19 connected to the unlocking button 6.
When the lever 17 is pivoted and the unlock button 6 is pressed, the lever 17 rotates to rotate the ratchet 13, disengaging the ratchet 13 from the latch 12, and opening the upper glass door 3. .

An intermediate portion of the lock lever is pivotally attached to a position near the latch 12 by a shaft 21. Axis 2! A coil spring η is attached to the outer periphery of the lock lever to always rotate the lock lever to the left in FIGS. 4 and 6.

When the latch retainer is engaged with the striker 8, the tip n of the lock lever is pressed by the outer periphery of the latch retainer and rotates clockwise (Fig. 14, Fig. 7), so that the lower metal door 4 does not open as described later. do not have.

A through hole δ is bored in the base 24 of the lock lever (FIG. 6), and the shaft n of one end of the intermediate link 6 is mounted in the through hole δ. A bin 28 is located on the opposite side of the axis n at one end of the intermediate link redundancy.
is provided.

Apart from 29 are the front and rear mounting plates, and the open lever g, left circular lever and Ishikawa lever a are mounted on the mounting plate via a shaft 31.

A bent piece is formed on the open lever support piece 35 (FIG. 6), and the claw of the rotating lever g that rotates when the door opening handle 5 is operated to open the door engages with the bent piece. 39 is a loft that connects the rotating lever and the door opening handle 5.

The other piece 40 of the open lever support has an air vibration groove 41.

Non-air vibration grooves ν are formed, and the pins engage with these.

At the intermediate position of the left circular lever 33 (FIG. 11), there is a length 31!143 that matches the non-air vibration groove C, and the axis 3!143 of the long groove 43. A tongō shrine is formed on the side, and fan-shaped windows 6 are formed at one interval on the side of the tongō shrine.

A latch stopper 46 is fixed to the mounting plate 30 (FIG. 6) with a shaft 47. A coil spring mallet is wound around the shaft 47, and the coil spring always biases the stow/bar 6 in the direction of detaching from the latch 4.

The stopper catch is provided with an upright piece a, which is attached to the fan-shaped window 4.
Let it loosely fit into 5. The upright piece 49 is smaller in width than the fan-shaped window 45 and can move within the fan-shaped window 45.

A rod leading to the left lock mtt is pivoted to the tip 51 of the row lever wing.

The Ishikawa lever 34 (FIG. 12) extends from the shaft attachment part of the shaft 31 to both sides, and the tip of one 52 has a rod arm attached to the right locking device lO, and the other U has a long groove that matches the long groove 43. A passage groove 5 that fits with the grooves 5 and 2, and a fan-shaped window 57 that fits with the fan-shaped window 45 are formed, respectively.

5. A bottle is inserted into the relief groove, and a standing katana is inserted into the fan-shaped window 57.

The unlocking button 6 has a protrusion at its tip, and when the protrusion 8 protrudes, the rotation lever 8 is rotated to pull the rod 19. 60 is a right striker, 6! is the left striker.

13.14 shows the right and left locking devices 10,! 1,
The sword is Chi2chi, the feather is Ratchet, and the lyrics are Link.

(effect) Next, we will discuss the effect.

(Explanation of FIG. 7) When the back door 2 is closed, the state is as shown in FIG. 7. In this state, operate the door opening handle 5 to open the door, pull the rod blade 7, rotate the rotating lever g, push the bent piece A with the pawl of the rotating lever g, and open the lever! axis 3
Even if the bottle n is rotated around the empty vibration groove 41, the bottle n is not rotated, so the lever wing for the rear row of Ishikawa levers does not rotate and the lower metal door 4 does not open.

(Explanation of FIG. 8) Next, in FIG. 3, when the key is inserted into the unlocking button 6 to unlock the door, the unlocking button 6 can be pushed in. When the unlock button 6 is pressed, the protrusion 8 protrudes, rotates the rotary lever 8, pulls the rod 4, and rotates the lever 17 to the left.

Then, as shown in FIG. 8, the claw of the lever 17 pushes the bent piece 16 of the ratchet 13, so the ratchet 13 is pressed against the shaft 15.
Rotate clockwise around , and the ratchet 13 will disengage from the latch 4. Therefore, the latch 4 becomes free, and the striker 8 can be opened to open the upper glass door 3.

In Fig. 7, a lock lever is attached to the outer peripheral surface of latch 4.
20 is in contact with the tip n, and therefore the lock lever is rotated slightly clockwise around the shaft 21 in the drawing, so that the intermediate link connected to the lock lever π by the shaft n is not lowered. The pin n of the intermediate link 9 was in a position facing the lowest air vibration groove 41 of the non-air vibration groove C, but in FIG. 8, the latch 12 was rotated by a spring.

Since the tip of the lock lever faces the small diameter part of the latch, the lock lever is rotated a little to the left by the spring action of the coil spring η (Fig. 6), and the intermediate link moves upward in conjunction. The bin n in the intermediate link moves to the top of the non-vibration groove C.

(Explanation of Fig. 9) As shown in Fig. 8, after the upper glass door 3 is opened,
? When the door handle 5 is operated to open the door, the rotary lever g is rotated by pulling the rod (), and the claw (of the rotary lever g) pushes the bent half, so the open lever lever rotates to the left. Since it has moved to the top of the non-air vibration groove (
The bin is moved to the left by engagement with the non-air vibration groove. In this bin formation, the long groove I of the Ishikawa lever U and the long groove 43 of the column lever blade (Figs. 6, 11, and 12) are engaged, so as the bin 2B moves, the Ishikawa Both the lever 34 and the column lever blade rotate to the left.

Therefore, by pulling the rod lever using the Furukawa lever, the ratchet 63 of the right locking device 10 is rotated, the ratchet 8 and the latch are released from each other, and the rod is similarly pulled using the row lever blade. Left lock device! The lower metal door 4 can be opened by rotating the ratchet 8 of No. 1, disengaging the ratchet 8 from the latch lug, and releasing the engagement between the right striker (equipment) and the left striker 61.

As described above, when the stone lever blade and the wooden lever blade rotate, the fan-shaped window 6 formed therein. Fan-shaped window 5
7 will also rotate together.

The fan-shaped window 45 and the fan-shaped window 57 have stopper stand pieces 49.
is engaged, the stopper 46 is rotated a little clockwise about the shaft 47, and the stopper 6
The tip of the latch contacts the outer peripheral surface of the latch, making it impossible to rotate the latch to the left.

This means that when the lower metal door 4 is opened, the upper glass door 3
This is to prevent the door from being closed even if the temperature drops.

(Explanation of Fig. 10) Fig. 10 shows that unless both the right locking device 1O1 and the left locking device 11 are completely locked, the striker 8 and the latch 1
2 is a state diagram when the meshing of the two parts is not possible. Closing the upper glass door 3 is different from closing the trunk door. In the case of a trunk, the door closes against the solid body of the vehicle, so even if you forcefully close the door, it will not be damaged.

However, in the case of a van type, the upper glass door 3 is closed against the unstable lower metal door 4, so if the lower metal door 4 is even slightly unstable (only one side is locked) and the door is closed, it may cause an accident or damage. become the cause.

The reason why the left circular lever/wood lever U of the present invention is not a single lever but has separate parts is because of this measure. like.

Even when the wooden lever 34 is tilted and the left-hand circular lever O is vertical, the fan-shaped window 57 of the Meigetsu lever ~U acts to keep the stopper in contact with the latch joint, thereby locking the latch. The striker 8 refuses to engage with the striker 8.

(Effect) The conventionally known Utility Model Publication No. 47-31540 has a structure in which the lower metal door cannot be opened until the upper glass door is opened, but when the lower metal door is half-locked, If no countermeasure is taken, that is, when locking the upper glass door to the lower metal door, the upper glass door cannot be completely locked if the lower metal door is in a no-lock state.

However, in the present invention, the packed 72 of the van type vehicle 1 is formed by an upper glass door 3 and a lower metal door 4, and an opening for opening the lower metal door 4 is provided outside the middle position between the left and right of the lower metal door 4. A door handle 5 and an unlock button 6 for opening the upper glass door 3 are attached, a striker 8 is fixed to the upper glass door 3, and a locking device 9 with which the striker 8 engages is attached to the lower metal fi4. and the lower metal door 4
Right locking device that locks it to the vehicle body side! 0 and a left locking device 11 are provided, and the engagement between the striker 8 and the locking device 9 is as described above when both the left and right locking devices 10.11 are incompletely locked or when either one is incompletely locked. Since this is a pack door locking device for a van-type vehicle in which the latch arrangement (or ratchet) 13 of the locking device 9 does not rotate or engage, the lower metal door 4 can be secured completely by the left and right locking devices 10 and 11. Since the upper glass door 3 is not locked to the lower metal door 4 until it is locked, the defects of the known example can be prevented.

[Brief explanation of drawings]

Figure 1 is a perspective view of the back door, Figure 2 is a layout of the door opening device, Figure 3 is a perspective view of the door opening device, Figure 4 is a plan view of the locking device, and Figure 5 is a side view of the locking device. Fig. 6 is an exploded view of the locking device, Fig. 7 is an explanatory diagram of the operation when the door is closed, Fig. 8 is an explanatory diagram of the operation when opening the upper glass door, and Fig. 9 is an explanatory diagram of the operation when opening the lower metal door. Fig. 10 is an explanatory drawing of the action when the right locking device of the lower metal door is not engaged, Fig. 11 is a plan view of the left circular lever, Fig. L2 is a plan view of the wooden lever, Figure 13 is a sectional view of the left and right locking devices;
FIG. 14 is a side view of the same. Explanation of symbols 1...Van type car, 2...Back door, 3...
Upper glass door, 4... Lower metal door, 5... Door opening handle, 6... Unlocking button, 7... Door opening device, 8...
・Striker, 9...Lock device, IO...Right lock device,! l...Left locking device, l...latch, 1
3...Ratchet, 14...Shaft, 15...Shaft, 1
6...Bending piece, 17...Lever piece...claw, 19
...rod, addition...lock lever, 21...shaft,
n...Coil spring, 23...Tip, 24...Base, 25...Through hole, redundant...middle link, 27...shaft, redundant...bin, 4...mounting plate , (9)...Mounting plate, 31...Shaft, J...Open lever, n...Ishikawa lever, U...Furukawa Shi A-A...-piece, stamen...
Bent piece, n...rotating lever, (...claw, o...rod, seasonal...other piece, 41...air vibration groove, C...non-air vibration groove, 43...・Long groove, side...through groove, 45...fan-shaped window, super...stow/bar, 47...shaft, Tsukuda...coil spring, 49...standing piece, father...rod, 51・
...Tip, father...one side, 8...rod, nut...other side, 55...long groove, 56...through groove. 57...Sector window, 8...Protrusion, 8...Rotating lever, leapfrog...Right striker, 61...Left striker, a
...Latch, 63-...Ratchet, ---Link. Patent applicant: Mitsui Kinzoku Mining Co., Ltd. b Figure 12

Claims (1)

[Claims] A back door 2 of a van-type automobile 1 is formed by an upper glass door 3 and a lower metal door 4, and an opening handle 5 for opening the lower metal door 4 is provided on the outside of the left and right middle position of the lower metal door 4. Unlock button 6 for opening the upper glass door 3
A striker 8 is fixed to the upper glass door 3, a locking device 9 that engages the striker 8 to the lower metal door 4, and a right locking device 10 that locks the lower metal door 4 to the vehicle body side. and a left locking device 11, and the engagement between the striker 8 and the locking device 9 is as described above when both the left and right locking devices 10 and 11 are incompletely locked, or when either one is incompletely locked. A back door lock device for a van-type automobile in which a latch 12 or a ratchet 13 of a lock device 9 does not rotate and do not engage.