JPH0421468Y2 - - Google Patents

Description

[Detailed description of the invention] ``Field of industrial application'' This invention relates to the improvement of a locking device, and in particular to the improvement of a locking device that pulls and locks the lid of a trunk, etc., toward the main body using a lever method. .

``Prior Art'' Conventionally, so-called lever-type locking devices as shown in FIGS. 4 and 5 have been widely used as this type of locking device.

In this lever-type engagement tool, an up-and-down operation lever 40 is pivotally mounted on a mounting base 10 with a shaft 33, and a locking ring 7 is provided on the rear end side of the axis 12 of the up-and-down operation lever 40.
It consists of a locking device main body A which is pivoted on one side of the locking device A, and a locking body B into which the locking ring 70 is loosely fitted. The body B is fixed to the lid of the trunk or the like. Therefore, in this type of lever-type engagement tool, when the up-and-down operation lever 40 is moved up and down, the locking ring 70 moves forward (moves upward in FIG. 4), and the locking ring 70 engages the locking body B. conversely, when the up-and-down operation lever 40 is in the up-and-down position, the locking body B is loosely fitted into the locking ring 70, and this up-and-down operation lever 40 can be attached and removed. When the locking ring 70 moves backward (moves downward in FIG. 4), the locking body B is drawn toward the locking tool main body A through the locking ring 70, and the locking ring 70 moves backward (moves downward in FIG. 4). A mutually attractive force is applied between the locking member B and the locking member B through the locking ring 70, and the two are engaged as shown in FIG.

The locking mechanism provided in this conventional locking device has hook parts 40', 40' shown in FIG. 40', a window hole 10' through which 40'penetrates;
10' is drilled. Further, a lock cylinder 60' that reaches the bottom surface of the mounting base 10 is arranged on the pivot base 30 arranged on the mounting base 10, and furthermore, a sliding locking operation plate 50' is provided below the mounting base 10. It will be arranged. This sliding lock operation plate 50' is attached to the mounting base 1.
A slit 50 into which a protrusion 71 bulging from 0 is fitted.
a and is slidable only in the left and right direction, and has a protrusion 50b on the upper end side and a pair of tongue pieces 50 on the lower end side.
c, 50c protrudes, and the lock cylinder 6
When a key (not shown) inserted into the key 0' is rotated, the tip of the key-shaped protrusion of the key is caught on the protrusion 50b, causing the sliding lock operation plate 50' to slide left and right depending on the direction of rotation. , the tongue pieces 50c, 50c are connected to the window holes 10', 1
0' and a lateral position thereof. Therefore, the hook portion 40',
40' is inserted into the window holes 10', 10', the sliding locking operation plate 50' is moved so that its tongue pieces 50c, 50c move from the side position of the window holes 10', 10' to the position below it. When slid, the tongue pieces 50c, 50
c is the hook part 40', 4 as shown in FIG.
0' to lock the up-and-down operation lever 40 from moving up and down.

``Problems to be solved by the invention'' However, it has been pointed out that the above-mentioned conventional locking device has the drawbacks that accidents may occur where the lock spontaneously comes undone during the locking process, and that the locking mechanism is inferior in durability. ing.

That is, since this conventional locking mechanism moves the sliding locking operation plate 50' in the left-right direction, it is difficult to keep the sliding locking operation plate 50' in a predetermined position. Although omitted in the explanation, the sliding locking operation plate 50' is devised to prevent it from moving naturally by pressing the protrusions and recesses provided on the sliding locking operation plate 50' with a presser spring or the like. Since this presser spring presses down the flat sliding locking operation plate 50' from above, the sliding locking operation plate 50' may move if a strong impact or the like is applied.

In addition, although the durability problem is hardly a problem under normal usage conditions, when the up-and-down operation lever 40 is in the up-and-down position, the sliding lock operation plate 50' may be mistakenly placed in the locked position. Slide (tongue 50
(c, 50c are slid so that they are positioned below the window holes 10', 10'), and when the elevating operation lever 40 is strongly moved downward without knowing this, the tongue pieces 50c,
50c may be pushed and bent, and the tongue piece 50
If the c, 50c is bent even slightly due to this erroneous operation, accidents may occur in which it becomes impossible to lock or remove the lock.

Therefore, the present invention was devised in view of the above-mentioned drawbacks, and it is an object of the present invention to provide a fastening device with excellent durability and reliability.

``Means for Solving the Problems'' In line with the above-mentioned purpose, the structure of the present invention, which is summarized in the above-mentioned utility model registration claims, is to solve the above-mentioned problems by attaching a shaft 33 to the mounting base 10. There is a locking device main body A to which the up-and-down movement operating lever 40 is pivotally mounted, and one side of a locking ring 70 is pivotally connected to the rear end side of the shaft 12 of this up-and-down movement operating lever 40, and the above-mentioned attachment plate part 80 is attached. In a locking tool consisting of a locking body B having a locking protrusion 81 protruding into which the locking ring 70 can be fitted loosely, on the upper surface of the mounting base 10 and below the up-and-down operation lever 40, there is a A column 15 having a large-diameter portion 15a is installed at the upper end, and the elevating operation lever 40 is configured in a box shape with a storage portion S between the bottom plate 40a and the lid plate 40b. 40a has a penetration hole 41 through which the columnar body 15 penetrates and a lower pivot hole 42, and the cover plate 40b has an upper pivot hole 43 opposite to the lower pivot hole 42. The hole is opened, and inside the up-and-down operation lever 40 is a lock cylinder 60 whose upper and lower ends are pivoted by the upper pivot hole 43 and the lower pivot hole 42, and a lock cylinder 60 with the lock cylinder 60 as a central axis. The locking operation plate 50 has a hook part 55 at one end that engages and disengages the constricted part 15b of the column 15, and the hook part 55 engages at the other end. The first linear side 57 is substantially parallel to the rear edge 45 of the bottom plate 40a when the hook portion 55 is rotated to the engagement/detachment position, and the hook portion 55 is substantially parallel to the rear edge 45 of the bottom plate 40a when the hook portion 55 is rotated to the engagement/detachment position. Further, between the other end of the locking operation plate 50 in the up-and-down operation lever 40 and the rear end side 45 of the bottom plate 40a, A leaf spring 59 is housed for biasing the moving position of the hook part 55 toward the engagement position and the engagement/detachment position, and one end of the locking operation plate 50 has an upper end close to the lower surface of the cover plate 40b. This technical measure is characterized in that a rising wall section 56 is provided in series.

``Function'' Therefore, the locking device of the present invention has the function of raising and lowering operation lever 40.
By moving up and down, the locking ring 70 can be detached from engagement with the locking body B, and conversely, the up and down operation lever 40
When the locking body B is loosely fitted into the locking ring 70 when the lever is in the up-and-down position, and the up-and-down operation lever 40 is moved downward, the locking body B is moved through the locking ring 70 to the locking tool main body A. It is the same as before that it can be engaged with.

Further, in the locking device of the present invention, when the up-and-down operation lever 40 is placed in the down position, the column 15 fits into the up-and-down operation lever 40 through the penetration hole 41, and in this state, the column body 15 is inserted into the lock cylinder 60 (not shown). When the key is inserted and the lock cylinder 60 to the lock operation plate 50 are rotated (rotated to the right in the illustrated example), the lock operation plate 5
The hook portion 55 of 0 is engaged with the column 15 and can be in a locked state, that is, the elevating operation lever 40 cannot be moved upwardly.

Then, from the above-mentioned locked state, the lock cylinder 60
When the locking operation plate 50 is rotated in the opposite direction, the hook portion 55 is disengaged from the column 15, and the lock is released, allowing the elevating operation lever 40 to move upwardly.

Further, when the lock operation plate 50 is rotated, the biasing force of the leaf spring 59 acts, and the rotation position where the hook part 55 engages with the column body 15 and the rotation position where this engagement is removed are applied. The locking operation plate 50 is held in its rotational position.

Further, the rising wall portion 56 provided at one end of the locking operation plate 50 changes the cross-sectional shape of the hook portion 55 to reinforce the hook portion 55, and furthermore, the upper end of this rising wall portion 56 is connected to the lid plate 40b. Since it is close to the lower surface, the up-and-down operation lever 4 is moved when the locking operation plate 50 is in the rotational position where it engages with the column 15.
Even if the lock operation plate 5 is forced to lie down strongly,
0 is pressed upward at the upper end of the column 15 and acts to prevent it from bending.

``Example'' Next, an example of the present invention will be described based on the accompanying drawings.

In the figure, A is the main body of the locking device, and this main body A of the locking device is attached to the mounting base 10 with a shaft 33.
0 is pivotally connected to the shaft 12 of this up-and-down operation lever 40.
As in the conventional case, one side of the locking ring 70 is pivotally attached to the rear end side.

That is, the mounting base 10 has rivet holes 11,
11, 11 so that it can be fixed in a proper place on the bag body, etc., and furthermore, the upper surface thereof has mounting holes 12, 1 for fixing the pivot base 30.
2, 12... and cut-and-raised portions 13, 13 for attaching an up-and-down movement biasing spring 20, which will be described later.
This mounting base 10 has mounting feet 3 at the bottom.
1, 31, 31... are provided in a protruding manner, and the mounting legs 31, 31, 31... are connected to the mounting holes 1.
2, 12, 12... and is bent and fixed on the back side of the mounting base 10, and one end of this pivot base 30 is provided with pivot holes 32, 32, and the pivot holes 32, 3
The up-and-down operation lever 40 is pivotally supported by a shaft 33 inserted through the shaft 2.

In the present invention, a column 15 having a large-diameter portion 15a at its upper end is implanted on the upper surface of the mounting base 10 at a lower portion of the up-and-down operation lever 40.
The column 15 has a rivet foot 15c at its lower part, and the rivet foot 15c is inserted into a hole 16 drilled in the mounting base 10 and fixed with a rivet.

In addition, in the present invention, the above-mentioned up-and-down operation lever 4
0 has a box-like configuration with a storage section S between a bottom plate 40a and a lid plate 40b. That is, the bottom plate 40
a has a shape that fits inside the cover plate 40b,
The lid plate 40b is configured such that the bottom plate 40a is inserted into the bottom plate 40a, and a fixing leg 48 protruding from the lower end thereof is folded into a recess 47 provided on the outer surface of the bottom plate 40a, and the bottom plate 40a is fixed inside the lid plate 40b. It is becoming more and more like this.

Further, the bottom plate 40a has a penetration hole 41 through which the columnar body 15 penetrates and a lower pivot hole 42, and the cover plate 40b has an upper pivot hole 43 connected to the lower pivot hole 42. There are openings facing each other. This penetration hole 41 is for the column 15 to penetrate into the up-and-down operation lever 40 when the up-and-down operation lever 40 is moved down so as to overlap on the mounting base 10. Needless to say, the diameter is larger than the large diameter portion 15a of the columnar body 15. Incidentally, pivot holes 44 are opened at the rear end sides of both side walls of the bottom plate 40a, and pivot holes 46 are opened at the rear end sides of both side walls of the cover plate 40b, and the aforementioned shaft 33 is inserted into these pivot holes 44. ,44,46,46
It is designed so that it can be inserted through it. Further, one side of the above-mentioned locking ring 70 is inserted into a through hole 49 formed in both side walls of the cover plate 40b and is pivotally supported, and the locking ring 70 is provided on both side walls of the bottom plate 40a. One side of 70 is provided with notches 46, 46 into which it is loosely inserted.

Further, inside the up-and-down operation lever 40, there is a lock cylinder 60 whose upper and lower ends are pivotally supported by the upper pivot hole 43 and the lower pivot hole 42, and a lock that rotates about the lock cylinder 60 as a central axis. An operation panel 50 is housed therein. This lock cylinder 60 is a conventionally known type having a key insertion groove 61, and although not clearly shown in the figure, it is pivoted by an upper pivot hole 43 and a lower pivot hole 42, and is supported by a bottom plate 40a and a cover plate 40b. The top and bottom are held together to prevent it from falling off. Further, in the illustrated embodiment, the locking operation plate 50 has a hole 53 into which a lock cylinder 60 is loosely inserted, and is rotatable about the lock cylinder 60 as a central axis. When a protrusion 54 to be engaged is protruded and a key (not shown) inserted into the lock cylinder 60 is turned, a part of the key protruding outward from the key insertion groove 61 is caught on the protrusion 54 and the locking operation is performed. Although the plate 50 is configured to rotate together, the locking operation plate 50 may be integrally constructed with the lock cylinder 60 so that it always rotates together with the lock cylinder 60.

Further, the locking operation plate 50 has a hook portion 55 at one end that engages and disengages the constricted portion 15b of the columnar body 15, and a hook portion 55 at the other end that is attached to the bottom plate 40a when the hook portion 55 is rotated to the engagement position. A first linear side 57 that is substantially parallel to the rear end side 45 and a second linear side 58 that is substantially parallel to the rear end side 45 of the bottom plate 40a when the hook portion 55 is rotated to the engagement/detachment position are provided. Furthermore, the locking operation plate 50 in the up-and-down movement operation lever 40
A leaf spring 59 is provided between the other end and the rear end side 45 of the bottom plate 40a for biasing the rotational position of the locking operation plate 50 toward the engagement position of the hook portion 55 and the engagement/detachment position direction. It's stored. The leaf spring 59 allows the hook portion 55 to adjust the rotational position of the lock operation plate 50 in the positional relationship between the first linear side 57 and the second linear side 58.
5, and a position where the engagement is disengaged.When changing from each rotational position to another rotational position, it is necessary to resist the biasing force of the plate spring 59. The locking operation plate 50 must be rotated by the user to prevent the locking operation plate 50 from shifting naturally.

One end of the locking operation plate 50 is provided with a rising wall 56 whose upper end is close to the lower surface of the cover plate 40b. This rising wall portion 56 is connected to the bottom plate 40
This is to prevent the thin plate-shaped locking operation plate 50 placed on the upper wall from bending due to external force, and the edges are bent at right angles for reinforcement. The upper end is arranged to be close to the lower surface of the cover plate 40b with some clearance, so that even if the locking operation plate 50 is bent due to a large external force,
The upper end of this rising wall portion 56 is prevented from contacting the lower surface of the cover plate 40b and deforming it.

Further, in the figure, B denotes a locking body that is locked to the locking tool main body A, which is a conventionally known locking body having a locking protrusion 81 protruding from a mounting plate portion 80 into which the locking ring 70 can be fitted loosely. This locking body B is attached to the mounting plate part 8.
It is fixed to the lid of a bag, etc. using the riveted holes 82, 82, 82 drilled at 0.

In the figure, reference numeral 20 denotes an up-and-down movement biasing spring that urges the up-and-down movement operating lever 40 in the up-and-down direction and in the down-down direction, and one end is attached to the mounting base 10 with cut and raised parts 13, 13 for attachment. fixed, and the free end side is the up-and-down operation lever 4
0, extending below the tip of the elevation movement operating lever 4.
The distal end side is biased upward (leftward in FIG. 2) from the shaft 33 of 0. That is, in the state shown in FIG. 2, the up-and-down movement operating lever 40 is biased in the prone movement direction, and the up-and-down movement operating lever 40 is prevented from moving up and down naturally. When the up-and-down operation lever 40 is moved up and down against the urging force of the up-and-down movement urging spring 20, the contact portion with the up-and-down movement urging spring 20 is will eventually move from the shaft 33 to the tip side of the up-and-down movement operating lever 40, and from that point on, the up-and-down movement operating lever 40 will be urged in the up-and-down direction. In the figure, the up-and-down motion biasing spring 20 has a cut-back portion 21, but this cut-back portion 21 increases the distance of the up-and-down motion bias spring 20 in a narrow space to obtain an appropriate spring force. It is for.

Further, in the figure, 14 indicates a recessed portion that prevents the lower end of the lock cylinder 60 from coming into contact with the mounting base 10.

[Effect of the invention] As described above, the present invention employs a locking mechanism in which the locking operation plate 50 rotates to engage and disengage from the column 15. It is possible to provide a locking tool that can be held more securely than the conventional sliding locking operation plate 50' and that does not naturally become unlocked during use.

Further, in the present invention, locking is performed by engaging the locking operation plate 50 with the column 15, and a rising wall portion 56 whose upper end is close to the lower surface of the cover plate 40b is connected to one end of the locking operation plate 50. Therefore, the locking operation plate 50 is prevented from deforming, increasing durability and reliability,
In particular, even if the locking operation plate 50 is rotated to the locking rotation position and the up-and-down operation lever 40 is forcibly moved downward, the upper end of this rising wall portion 56 will not touch the lower surface of the cover plate 40b. This makes it possible to provide a highly reliable locking tool that prevents deformation due to the contact.

[Brief explanation of the drawing]

Figure 1 is a front view of the locking device of the present invention, Figure 2 is
X-ray sectional view, Figure 3 is an exploded perspective view of main parts, Figure 4
The figure shows a partially cutaway front view of a conventional example, and FIG. 5 shows a longitudinal sectional view of the main part. 10...Mounting base, 12...Shaft, 15...Column,
15a...Large diameter portion, 15b...Narrow portion, 33...
...shaft, 40... up-and-down operation lever, 40a... bottom plate, 40b... cover plate, 41... penetration hole, 42...
Lower pivot hole, 43... Upper pivot hole, 45... Rear end side, 50... Lock operation plate, 55... Hook portion, 5
6...Rising wall portion, 57...First straight side, 58...
... Second linear side, 59 ... Leaf spring, 60 ... Lock cylinder, 70 ... Locking ring, 80 ... Mounting plate part,
81... Locking protrusion, A... Locking tool body, B... Locking body, S... Storage section.

Claims (1)

[Claims for Utility Model Registration] An up-and-down operation lever 40 is pivotally mounted on a mounting base 10 with a shaft 33, and the axis 1 of this up-and-down operation lever 40 is
On the rear end side of 2, there is a locking tool main body A with one side of the locking ring 70 pivotally attached, and the locking ring 70 is attached to the mounting plate part 80.
In the locking tool consisting of a locking body B having a locking protrusion 81 protruding from which the locking protrusion 81 can be fitted loosely, the up-and-down operation lever 40 is mounted on the top surface of the mounting base 10.
A pillar body 15 having a large diameter portion 15a at the upper end is installed in the lower part of
The bottom plate 40a has a penetration hole 41 through which the pillar body 15 penetrates and a lower pivot hole 42, An upper pivot hole 43 is opened in the cover plate 40b opposite to the lower pivot hole 42, and the upper and lower ends of the up-and-down movement operating lever 40 are connected to the upper pivot hole 43 and the lower pivot hole 42, respectively. A lock cylinder 60 pivotally supported by the hole 42 and a lock operation plate 50 that rotates about the lock cylinder 60 as a central axis are housed, and the lock operation plate 50 has a constriction portion 15b of the columnar body 15 at one end. A hook portion 55 for attaching and detaching the engagement to the
, when the hook portion 55 is rotated to the engagement/detachment position with the first linear side 57 that is substantially parallel to the rear end side 45 of the bottom plate 40a when the hook portion 55 is rotated to the engagement position at the other end. A second linear side 58 that is substantially parallel to the rear end side 45 of the bottom plate 40a is provided at the bottom plate 40a, and further, the other end of the locking operation plate 50 in the up-and-down operation lever 40 and the rear end side 45 of the bottom plate 40a are provided. A leaf spring 59 is housed between the locking operation plate 50 for biasing the rotational position of the locking operation plate 50 toward the engagement position and the engagement/detachment position of the hook part 55, and one end of the locking operation plate 50. The locking device is characterized in that a rising wall portion 56 whose upper end is close to the lower surface of the cover plate 40b is provided in succession.