JP6996437B2 - Vehicle seat lock device - Google Patents

Description

The present disclosure relates to a vehicle seat locking device applied to a vehicle seat.

For example, in the invention described in Patent Document 1, the cable end of the operation cable is caught and locked by an operation member such as an open lever.

Japanese Unexamined Patent Publication No. 2011-69437

In the invention described in Patent Document 1, the cable end is exposed. Therefore, in the present invention, if the operation member is displaced when the inner cable of the operation cable is not displaced, that is, when tension is not applied to the inner cable, the cable end may be detached from the operation member. Is high.

In view of the above points, the present disclosure discloses an example of a vehicle seat lock device capable of suppressing the cable end from coming off from the operating member.

It is desirable that the vehicle seat locking device applied to the vehicle seat includes, for example, at least one of the following constituent requirements.
That is, the configuration is a displaceable hook (11) between a striker (7) fixed to a vehicle or seat and an engageable position and a disengageable disengagement position. , The operating member (12) for displacing the hook (11) to the release position, the base portion (13) for displaceably supporting the operating member (12), and the cover that is integrally displaced with the operating member (12). A locking portion (12A), a locked portion (12A) to which the cable end (20A) of the operation cable is detachably locked, and a cover portion (13A) provided on the base portion (13). It is a cover portion (13A) capable of restricting the cable end (20A) from being disengaged from the locked portion (12A) by covering at least a part of the locked portion (12A).

The cover portion (13A) and the locked portion (12A) can regulate the disconnection of the cable end (20A) from the locked portion (12A) when the operating member (12) is within the range of use. When the operating member (12) is in the working position, it is desirable that the cable end (20A) can be detached from the locked portion (12A).

The standby position is a position where no operating force is applied to the operating member (12). The action position is a position where the hook (11) is a release position. The working position is a position outside the range of use from the standby position to the working position.

As a result, in the vehicle seat lock device, when the operating member (12) is within the range of use, it is possible to prevent the cable end (20A) from being detached from the locked portion (12A). Then, by displacing the operation member (12) to the work position, the operator can easily assemble the operation cable to the vehicle seat lock device and remove the operation cable from the vehicle seat lock device. Can be done.

The vehicle seat lock device may have the following configuration requirements.
That is, the locked portion (12A) has a through hole (12L) through which the inner cable (20B) of the operation cable penetrates, and the cable end (20A) has a locking wall (12B) that can be detached and displaced. The locking wall (12B) that locks the cable end (20A) when the cable end (20A) comes into contact, and the cable end (20A) that is separated from the locking wall (12B). When the cable end (20A) is displaced close to the locking wall (12B), the displacement of the cable end (20A) is guided so that the cable end (20A) comes into contact with the locking wall (12B) in a predetermined posture. It is desirable to have a guide unit (12E).

As a result, when the operation member (12) is displaced when the inner cable of the operation cable is not displaced, that is, when tension is not applied to the inner cable, the inner cable is prevented from bending so as to bend. Will be done. Therefore, it is possible to prevent the cable end (20A) from being detached from the locked portion (12A).

Further, since the guide portion (12E) is provided, the displacement of the cable end (20A) is guided so that the cable end (20A) comes into contact with the locking wall (12B) in a predetermined posture. Can be. As a result, when the cable end (20A) is displaced, it can be suppressed that the cable end (20A) is twisted.

It is desirable that the locking wall (12B) is provided in a box-shaped or bag-shaped portion where the cable end (20A) can be fitted. This can improve the mechanical strength of the locking wall (12B).

Incidentally, the reference numeral in each of the parentheses is an example showing a correspondence relationship with the specific configuration and the like described in the embodiment described later, and the present disclosure is limited to the specific configuration and the like shown in the reference numeral in the parentheses. It's not something.

It is a figure which shows the seat lock device for a vehicle which concerns on 1st Embodiment. It is an exploded view of the seat lock device for a vehicle which concerns on 1st Embodiment. It is a figure which shows the locked state of the seat lock device for a vehicle which concerns on 1st Embodiment. It is a figure which shows the release state of the seat lock device for a vehicle which concerns on 1st Embodiment. It is a figure which shows the release state of the seat lock device for a vehicle which concerns on 1st Embodiment. It is a figure which shows the operation lever and the lever case in a standby position. It is a figure which shows the operation lever and the lever case in the action position. It is a figure which shows the operation lever and the lever case in a working position. It is a figure which shows the operation lever in a standby position. It is a figure which shows the operation lever in the action position. It is a figure which shows the operation lever in a work position. It is a figure which shows the locked part of the operation lever. It is a figure which shows the locked part of the operation lever.

The following "embodiments of the invention" show an example of embodiments that belong to the technical scope of the present disclosure. That is, the matters specifying the invention described in the claims are not limited to the specific configuration, structure, etc. shown in the following embodiments.

At least one member or part described with a reference numeral is provided, except when a notice such as "one" is given. That is, if there is no notice such as "one", two or more of the members may be provided.

This embodiment is an example in which the vehicle seat lock device according to the present disclosure is applied to a seat mounted on a vehicle such as a vehicle (hereinafter referred to as a vehicle seat). The arrows and the like indicating the directions attached to each figure are described in order to make it easier to understand the relationship between each figure.

Therefore, the invention presented in the present disclosure is not limited to the directions given in the drawings. The directions shown in each figure are the directions in the state where the vehicle seat according to the present embodiment is assembled to the vehicle. It should be noted that the vehicle seat lock device shown below includes at least components such as members or parts described with reference numerals.

(First Embodiment)
1. 1. Outline of the vehicle seat lock device The vehicle seat lock device 10 shown in FIG. 1 is a lock device for fixing the seat back 5 to the vehicle body (not shown). The seat back 5 is rotatably connected to a seat cushion (not shown) or a vehicle body.

The seat back 5 is a portion for supporting the back of the seated person. The seat cushion is a part for supporting the buttocks of the seated person. The vehicle seat lock device 10 according to the present embodiment is mounted on one end side of the seat back 5 in the seat width direction, that is, a portion of the seat back 5 facing the vehicle body.

A person who uses a vehicle seat (hereinafter referred to as a user) operates the vehicle seat lock device 10 to fix the seat back 5 in an upright position and to make the seat back 5 rotatable. You can switch between cases.

2. 2. Details of the vehicle seat lock device 2.1 Configuration of the vehicle seat lock device As shown in FIG. 2, the vehicle seat lock device 10 includes at least a hook 11, an operating lever 12, a lever case 13, and the like.

<Hooks, etc.>
As shown in FIG. 1, the hook 11 is an engaging member that engages with the striker 7 so as to be hooked. The striker 7 is an example of an engaged member fixed to the vehicle body. Therefore, the hook 11 is provided with a recess 11A into which the striker 7 can be fitted.

The hook 11 is displaceable between an engaging position where the striker 7 can be engaged (see FIG. 3) and a disengaging position (see FIGS. 4 and 5) where the engagement can be disengaged. As shown in FIG. 2, the hook 11 according to the present embodiment is rotatably attached to the lock case 15 via the fastening bush 14A.

The lock case 15 is fixed to the seat back 5, that is, the vehicle seat, via the base bracket 16. The lock case 15 is made of resin. The base bracket 16 is made of metal. That is, the lock case 15 is fixed to the seat back 5 in a state of being reinforced by the base bracket 16.

The hook spring 17 is an elastic body capable of exerting an elastic force Fs1 (see FIG. 3) that displaces the hook 11 toward the release position side. The hook spring 17 according to the present embodiment is composed of a torsion coil spring arranged coaxially with the fastening bush 14A.

The pole 18 transmits the operating force input to the operating lever 12 to the hook 11. The pole 18 is rotatably attached to the lock case 15 via the fastening bush 14B.

The pole 18 is provided with at least a first pressing portion 18A, a second pressing portion 18B, and the like. The first pressing portion 18A and the second pressing portion 18B are portions that can come into contact with the pressed portion 11B provided on the hook 11.

As shown in FIG. 3, the first pressed portion 18A is a portion that comes into contact with the pressed portion 11B when the hook 11 is in the engaged position. As shown in FIG. 4, the second pressed portion 18B is a portion that comes into contact with the pressed portion 11B when the hook 11 is in the release position.

In the state where the first pressed portion 18A is in contact with the pressed portion 11B, the second pressed portion 18B is in a non-contact state with the pressed portion 11B. When the second pressed portion 18B is in contact with the pressed portion 11B, the first pressed portion 18A is in a non-contact state with the pressed portion 11B.

The pole spring 19 is an elastic body capable of exerting an elastic force Fs2 that presses the first pressing portion 18A and the second pressing portion 18B against the pressed portion 11B. That is, the pole spring 19 can exert an elastic force Fs2 that rotates the pole 18 to the right on the paper surface of FIG.

The rotation center of the pole 18, the rotation center of the hook 11, the first pressing portion 18A, the second pressing portion 18B, and the pressed portion 11B are configured to satisfy at least the following requirements.
When the first pressed portion 18A or the second pressed portion 18B is in contact with the pressed portion 11B, the force of the first pressed portion 18A pressing the pressed portion 11B is directed toward the center of curvature of the pressed portion 11B. It is configured to work. Therefore, the force does not contribute as a rotational force for rotating the hook 11.

<Operation lever, etc.>
The operating lever 12 is an example of an operating member for displacing the hook 11 to the release position. The operation lever 12 is directly or indirectly operated by the user. As shown in FIGS. 6 to 8, the lever case 13 is an example of a base portion that supports the operating lever 12 in a displaceable manner.

The operating lever 12 can be displaced within a range including a standby position (see FIGS. 6 and 9), an action position (see FIGS. 7 and 10), and a working position (see FIGS. 8 and 11). The standby position is the position of the operating lever 12 when no operating force is applied to the operating lever 12. When the operating lever 12 is in the standby position, the hook 11 is normally in the engaging position (see FIG. 3).

The action position is the position of the operating lever 12 when the hook 11 is in the release position. In other words, the action position is the position of the operation lever 12 when the user applies an operation force to the operation lever 12 in the standby position for the purpose of setting the hook 11 as the release position.

The working position is the position of the operating lever 12 when the operating lever 12 is located outside the range of use. The range of use is the range from the standby position to the action position. Therefore, the operating lever 12 is usually located within the range of use when the operating force intended to set the hook 11 as the release position is applied to the operating lever 12.

The operation lever 12 according to the present embodiment is rotatably supported by the lever case 13. The acting position is a position where the operating lever 12 is rotationally displaced toward the front side of the seat from the standby position. The working position is a position where the operating lever 12 is rotationally displaced toward the front side of the seat from the action position.

<Locked part>
The vehicle seat lock device 10 includes a locked portion 12A as shown in FIG. The locked portion 12A is a portion where the cable end 20A of the operation cable 20 is detachably hooked and locked.

The operation cable 20 is a control cable having a cable end 20A, an inner cable 20B, an outer tube 20C (see FIG. 6), and the like. The inner cable 20B is a flexible wire.

The outer tube 20C is a flexible tube into which the inner cable 20B is displaceably inserted. The cable end 20A is a portion having an outer dimension larger than the diameter dimension of the inner cable 20B, and is a portion connected to the end portion of the inner cable 20B.

Of the ends of the inner cable 20B, the end opposite to the cable end 20A is connected to a remote control unit (not shown). The user can indirectly operate the operation lever 12 by operating the remote control unit. The remote control unit according to this embodiment is provided in the luggage compartment of the vehicle.

The locked portion 12A is integrally displaced with the operating lever 12. The locked portion 12A according to the present embodiment is an integrally molded portion integrally molded with resin together with the operating lever 12 as a part of the operating lever 12.

As shown in FIGS. 12 and 13, the locked portion 12A includes a locking wall 12B, a guide portion 12E, and the like. As shown in FIG. 9, the locking wall 12B is a wall portion having a through hole 12L through which the inner cable 20B penetrates and the cable end 20A can be detached and displaced.

Then, the locking wall 12B locks the cable end 20A when the cable end 20A comes into contact with the cable end 20A. The cable end 20A according to this embodiment is cylindrical. Therefore, the locking wall 12B is curved in an arc shape along the outer peripheral surface of the cable end 20A.

As shown in FIGS. 9 to 11, the cable end 20A is displaceable and displaceable with respect to the locking wall 12B. Therefore, a space 12F for making the cable end 20A displaceable is provided on the side opposite to the outer tube 20C with the locking wall 12B interposed therebetween.

The guide portion 12E contacts the locking wall 12B in a predetermined posture when the cable end 20A separated from the locking wall 12B is displaced close to the locking wall 12B. As described above, it is a portion capable of guiding the displacement of the cable end 20A.

Specifically, the guide portion 12E includes a first wall portion 12C and a second wall portion 12D. The first wall portion 12C is separated from the second wall portion 12D with the space 12F interposed therebetween. The separation distance between the first wall portion 12C and the second wall portion 12D is approximately equal to the diameter dimension of the cable end 20A.

Therefore, since the outer peripheral surface of the cable end 20A slides into contact with the first wall portion 12C and the second wall portion 12D, the cable end 20A is displaced close to the locking wall 12B while the posture of the cable end 20A is constrained. do.

A groove portion 12G communicating with the through hole 12L and the space 12F is provided between the second wall portion 12D and the locking wall portion 12B. The groove portion 12G has a width dimension that allows at least the inner cable 20B to penetrate.

As shown in FIGS. 12 and 13, the locking wall 12B is provided in a box-shaped or bag-shaped portion into which the cable end 20A can be fitted. That is, wall portions 12H, 12J, and 12K are provided in at least one direction (three directions in this embodiment) around the locking wall 12B.

The wall portions 12H, 12J, and 12K are provided so as to surround the cable end 20A locked to the locking wall 12B. The locking wall 12B, the wall portion 12H, 12J, 12K, the first wall portion 12C, and the second wall portion 12D are integrally molded portions integrally molded with resin.

<Cover part>
As shown in FIG. 6, the lever case 13 is provided with a cover portion 13A. The cover portion 13A is a portion capable of restricting the cable end 20A from being detached from the locked portion 12A by covering at least a part of the locked portion 12A. The cover portion 13A according to the present embodiment is an integrally molded portion integrally molded with resin together with the lever case 13.

The cover portion 13A and the locked portion 12A are configured to satisfy at least the following requirements (a) and (b).
(A) When the operating lever 12 is within the range of use, it is possible to regulate the disconnection of the cable end 20A from the locked portion 12A. Specifically, in the range of use, as shown in FIGS. 6 and 7, the space 12F (see FIG. 9) is covered with the cover portion 13A, and the cable end 20A cannot be separated from the space 12F.

(B) When the operating lever 12 is in the working position, the cable end 20A can be detached from the locked portion 12A. Specifically, at the working position, as shown in FIG. 8, a part of the space 12F is opened so that the cable end 20A can be separated from the space 12F.

<Caution member>
The vehicle seat lock device 10 includes a caution member 21 as shown in FIG. The caution member 21 is an indicator portion indicating the position of the hook 11. The caution member 21 has a first position (see FIG. 3) indicating that the hook 11 is in the engaging position and a second position (see FIGS. 4 and 5) indicating that the hook 11 is in the releasing position. It can be displaced between them.

That is, if the caution member 21 is rotationally displaced integrally with the operating lever 12, it can be displaced between the first position and the second position with respect to the operating lever 12. The caution member 21 is constantly receiving an elastic force from the spring 21A (see FIG. 2).

The direction of the elastic force is the direction in which the caution member 21 is displaced from the first position to the second position. Further, as shown in FIG. 6, the caution member 21 is provided with a sliding contact portion 21C that slides into contact with the cam portion 21B provided on the lever case 13.

Then, when the operating lever 12 receives an operating force and is rotationally displaced, the caution member 21 is rotationally displaced integrally with the operating lever 12. At this time, since the sliding contact portion 21C is displaced along the cam portion 21B, the caution member 21 is displaced between the first position and the second position.

2.2 Operation of seat lock device for vehicles <Locked state>
When the hook 11 is in the engaging position, the hook 11 engages with the striker 7 and becomes locked. In the locked state, as shown in FIG. 3, the first pressed portion 18A comes into contact with the pressed portion 11B.

At this time, the backlash suppressing cam plate (not shown) generates a force for rotating the hook 11 toward the engaging position side. When a large load is input to the hook 11, the contact portion 11C is locked to the third pressing portion 18C, so that the locked state is maintained.

<Locked state → Release state>
When the operating lever 12 is operated in the locked state, the operating force input to the operating lever 12 is transmitted to the pole 18 via the pole lever 18C as shown in FIG. As a result, the hook 11 is rotationally displaced so that the first pressed portion 18A and the pressed portion 11B are in a non-contact state, and the second pressed portion 18B is in contact with the pressed portion 11B.

That is, the hook 11 is rotationally displaced from the engaged position to the disengaged position and is in the released state. In the released state, the force of the second pressing portion 18B pressing the pressed portion 11B acts toward the center of curvature of the pressed portion 11B. Therefore, the hook 11 is held at the release position by the rotational force exerted by the hook spring 17.

<Release state → Lock state>
In the released state, when the seat back 5 is raised to the upright state by the user, the striker 7 comes into contact with the hook 11, and the hook 11 receives pressing force from the striker 7. The pressing force presses the hook 11 from the release position side to the engagement position side. Therefore, the hook 11 and the striker 7 are engaged with each other to be in a locked state.

<Working position>
When the user displaces the operation lever 12 to the working position beyond the range of use, both the first pressing portion 18A and the second pressing portion 18B are in a non-contact state with respect to the pressed portion 11B as shown in FIG. Will be. Therefore, the hook 11 is held at the release position by the elastic force of the hook spring 17.

When the operating lever 12 reaches the working position, as shown in FIG. 8, a part of the space 12F is opened so that the cable end 20A can be detached from the space 12F. That is, the cable end 20A can be detached from the locked portion 12A.

3. 3. Features of the vehicle seat lock device according to the present embodiment In the vehicle seat lock device 10, when the operation lever 12 is within the range of use, it is possible to prevent the cable end 20A from being disengaged from the locked portion 12A.

When the operation lever 12 is in the work position, the cable end 20A can be detached from the locked portion 12A. Therefore, the operator can assemble the operation cable 20 to the vehicle seat lock device 10 and operate the cable. The removal work of removing the 20 from the vehicle seat lock device 10 can be easily performed.

When the cable end 20A separated from the locking wall 12B is displaced close to the locking wall 12B, the locked portion 12A attaches the cable end 20A to the locking wall 12B in a predetermined posture. It has a guide portion 12E that guides the displacement of the cable end 20A so as to come into contact with it.

As a result, when the operation lever 12 is displaced in a state where the inner cable 20B is not displaced, that is, when tension is not applied to the inner cable 20B, it is possible to prevent the inner cable 20B from bending so as to bend. (See FIG. 10). Therefore, it is possible to prevent the cable end 20A from being detached from the locked portion 12A.

That is, normally, when the operating lever 12 is in the standby position, the locking wall 12B and the cable end 20A are in contact with each other (see FIG. 9). In this state, if only the operating lever 12 is operated without operating the remote control unit, the cable end 20A is displaced relative to the locking wall 12B so as to be separated from the locking wall 12B ( See FIG. 10).

Therefore, even if only the operation lever 12 is operated without operating the remote control unit, it is possible to prevent the inner cable 20B from bending so as to bend. The bending portion is a portion of the inner cable 20B located between the locking wall 12B and the cable end 20A.

Incidentally, if the cable end 20A is fixed to the locking wall 12B, the cable end 20A may be separated from the locked portion 12A.
That is, if the operation lever 12 is operated while tension is not applied to the inner cable 20B, the cable end 20A is displaced together with the operation lever 12, so that the inner cable 20B may be significantly bent.

If the inner cable 20B is greatly bent, the cable end 20A may be disengaged from the locked portion 12A. On the other hand, in the present embodiment, since the inner cable 20B is suppressed from being greatly bent, it is possible to suppress the cable end 20A from being disengaged from the locked portion 12A.

Since the locked portion 12A is provided with the guide portion 12E, it is possible to guide the displacement of the cable end 20A so that the cable end 20A comes into contact with the locking wall 12B in a predetermined posture. It can be done. As a result, when the cable end 20A is displaced, it can be suppressed that the cable end 20A is twisted.

The locking wall 12B is provided at a portion formed in a box shape or a bag shape into which the cable end 20A can be fitted. This can improve the mechanical strength of the locking wall 12B.
(Other embodiments)
In the above-described embodiment, the striker 7 is fixed to the vehicle body, and the vehicle seat lock device 10 is provided on the seat back 5. However, the inventions disclosed herein are not limited thereto. That is, in the present invention, for example, the striker 7 may be provided on the seat back 5, and the vehicle seat lock device 10 may be fixed to the vehicle body.

The locked portion 12A according to the above-described embodiment was a portion integrally molded with the operation lever 12. However, the inventions disclosed herein are not limited thereto. That is, in the present invention, for example, the locked portion 12A may be configured as a separate body from the operating lever 12, and may be configured to be integrally displaced with the operating lever 12 via a link mechanism or the like.

The operating lever 12 according to the above-described embodiment has a configuration in which it is rotatably supported by the lever case 13. However, the inventions disclosed herein are not limited thereto. That is, the present invention may have, for example, a configuration in which the operating lever 12 is slidably supported with respect to the lever case 13.

The cover portion 13A according to the above-described embodiment was a portion integrally molded with the lever case 13. However, the inventions disclosed herein are not limited thereto. That is, in the present invention, for example, the cover portion 13A may be configured as a separate body from the lever case 13, and the cover portion 13A may be fixed to the lever case 13.

In the above-described embodiment, the cable end 20A is displaceable with respect to the locking wall 12B, and has a guide portion 12E for guiding the displacement of the cable end 20A. However, the inventions disclosed herein are not limited thereto. That is, the present invention may have, for example, a configuration in which the cable end 20A is fixed to the locked portion 12A.

The locking wall 12B according to the above-described embodiment is provided at a portion formed in a box shape or a bag shape into which the cable end 20A can be fitted. However, the inventions disclosed herein are not limited thereto. That is, the present invention may have, for example, a configuration in which the wall portion 12H or the like is abolished, or a box-shaped or bag-shaped configuration in which the locked portion 12A surrounds the entire circumference of the cable end 20A.

In the embodiments described above, the present disclosure has been applied to the vehicle. However, the application of the invention disclosed in the present specification is not limited to this, and it is also applied to seats used for vehicles such as railroad vehicles, ships and aircraft, and stationary seats used for theaters and households. Applicable.

Furthermore, the present disclosure is not limited to the above-described embodiment as long as it conforms to the gist of the invention described in the above-mentioned embodiment. Therefore, either the configuration in which at least two embodiments of the plurality of embodiments described above are combined, or the configuration requirements shown in the illustration or the configuration requirements described with reference numerals in the above-described embodiment are abolished. It may be a configured configuration.

5 ... Seat back 7 ... Striker 10 ... Vehicle seat lock device 11 ... Hook 11A ... Recess 11B ... Pressed part 11C ... Abutment part 12 ... Operation lever 12A ... Locked part 12B ... Locking wall 12L ... Through hole 12F Space 12E ... Guide 12C ... 1st wall 12D ... 2nd wall 12G ... Groove 12H ... Wall 13 ... Lever case 13A ... Cover 14A ... Fastening bush 14B ... Fastening bush 15 ... Lock case 16 ... Base bracket 17 Hook spring 18 ... Pole 18A ... 1st pressing part 18B ... 2nd pressing part 18C ... 3rd pressing part 19 ... Pole spring 20 ... Operation cable 20A ... Cable end 20B ... Inner cable

Claims (3)

In the vehicle seat lock device applied to the vehicle seat,
A hook that can be displaced between an engagement position that can engage with the striker fixed to the vehicle or the seat and a disengagement position that can disengage the engagement.
An operating member for displacing the hook to the release position, and
A base portion that displaceably supports the operating member and
A locked portion that is integrally displaced with the operating member, and a locked portion in which the cable end of the operation cable is detachably locked.
A cover portion provided on the base portion, comprising a cover portion capable of restricting the cable end from being detached from the locked portion by covering at least a part of the locked portion.
The operating member is a work that is outside the standby position where the operating force is not acting on the operating member, the acting position where the hook is the release position, and the range of use from the standby position to the acting position. It can be displaced within the range including the position,
Further, the cover portion and the locked portion are
When the operating member is within the range of use, the cable end can be restricted from being disengaged from the locked portion, and when the operating member is in the working position, the engaged member is engaged. A vehicle seat lock device configured so that the cable end can be detached from the stop. The locked portion is
A locking wall that has a through hole through which the inner cable of the operation cable penetrates, and the cable end is a locking wall that can be detached and displaced, and locks the cable end when the cable end comes into contact. When the wall and the cable end separated from the locking wall are displaced close to the locking wall, the cable end is brought into contact with the locking wall in a predetermined posture. The vehicle seat lock device according to claim 1, which has a guide unit for guiding the displacement of the electric wire. The vehicle seat locking device according to claim 2, wherein the locking wall is provided in a box-shaped or bag-shaped portion into which the cable end can be fitted.

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