JP2011509140A - Hook lock - Google Patents

Abstract

  The hook lock (10) includes a sleeve unit (11) and a hook unit (12), and the hook unit can be inserted into the gripping body (20) and the sleeve unit (11) in the insertion direction. A finger hook (22) capable of engaging with a recess in the sleeve unit (11) to lock the finger hook in a position where the hook unit is inserted in the hook unit. It is provided with manually operable locking means intended to be brought into a state of engagement, the locking means being biased towards the locking position. A release key (21) is formed as a displaceable part of the gripping body (20), and the release key (21) is in the first direction so that the release key (21) is engaged with the locking means. And then in a second direction different from the first direction, the displacement in the second direction releases the locking means from engaging with the recess, and the finger hook is moved to the sleeve unit (11). Can be released from.

Description

  The invention relates to a hook lock of the kind described in the preamble of claim 1.

  Thus, the present invention relates to a general type of hook lock disclosed in Swedish Patent No. 516108.

  Such previously known hook locks are particularly suitable for transporting devices such as, for example, child transporting devices of the type known from Swedish Patent No. 530395.

  The child carrying device described in the above-mentioned patent includes a fixing belt worn on the upper body of a user, the fixing belt having a child carrying pocket, and a lower central portion of the child carrying pocket. Is connected to a hard plate. The child carrying pocket has a side edge portion located near each side edge of the plate, which side edge portion is removably attached to the plate by means of attachment parts, preferably by hook locks. The child carrying pocket has a lower central band that is folded upwards with respect to the plate, and the lower central band is attached to the plate at a central position in the lateral direction by means of mounting parts, In order to raise and lower the folded bottom of each piece, there are a number of selectable fixtures on the plate that are vertically spaced apart.

  The above-mentioned type of transport device is about what the child placed in the child transport pocket is doing, i.e., whether the child attempts to release the attachment that attaches the child transport pocket to the rigid plate. It is mainly carried on the user's back because it cannot be managed at all. In this way, it is difficult to release or to achieve a mounting part in the form of a lock and mounting base with an anti-slipping device used by children, in particular a hook lock that is difficult to release or has an anti-slipping device used by children. The purpose is to do.

  Furthermore, if one or more parts of the child carrying pocket are to be attached to or removed from the plate or other carrying device, the release or locking of the fitting or hook lock should be simple. .

  Furthermore, the hooking of the finger hook into the sleeve unit or the removal of the finger hook from the sleeve unit should be simple, i.e. the length of the finger hook should be short.

  One object of the present invention is to achieve a hook lock that is difficult for a child to release or a hook lock with an anti-tamper device used by a child with a transport device of the type described above.

  A further object is to achieve such a hook lock with an improved locking function of the hook unit relative to the sleeve unit.

  A further object is to achieve such a hook lock with a baffle to prevent unintentional catching or fixing of the hook unit to some part of the conveying device other than the sleeve unit.

  The above objects are achieved in whole or in part by the present invention as defined in the appended independent claims.

  Embodiments of the invention are defined in the appended dependent claims.

  The present invention will be described with reference to the accompanying drawings in more detail.

FIG. 2 is a front view of a hook lock according to the present invention attached to a transport device shown schematically. FIG. 2 is a rear perspective view of the hook lock of FIG. 1. It is a back perspective view of the hook unit of a hook lock. FIG. 6 is a front perspective view of the hook unit attached to the sleeve unit, but with a portion removed. It is a front view of the sleeve unit of a hook lock. It is a top view of the hook lock of FIG. It is a bottom view of the hook lock of FIG.

  In the following description of the hook lock according to the invention, the hook lock will be described for securing a child carrying pocket to a child carrying device of the type described in the above-mentioned Swedish Patent No. 530395. The hook lock according to the present invention can be used in other types of child carrying fixation belts or child carrying devices that do not have a rigid plate, whereby the hook lock is attached to a strap or similar means. It will be apparent to those skilled in the art that this is possible. Furthermore, the child carrying pocket can be replaced by a carrying pouch, in which, for example, the same hook lock and other mounting parts are preferably used to secure the carrying pouch to a plate or a corresponding carrying device, for example. It is done. In the last example described, a rucksack type with a removable transport pouch is obtained.

  FIG. 1 is a front view showing a hook lock 10 attached to a rigid plate 1 shown schematically in a child carrier device (not shown). More particularly, the sleeve unit 11 of the hook lock 10 is attached to one side of the back plate 1, and a transport fixing belt (not shown) is attached to the opposite side. In one embodiment of the child carrier device not shown, the sleeve unit 11 may be attached to the carrier strap of the carrier fixation belt.

  As can be seen from FIG. 2, the hook lock 10 also includes a hook unit 12. An attachment ear 13 is provided on the side of the hook unit 12 on the opposite side of the sleeve unit 11, and the attachment ear 13 is intended to be attached to a side edge of a child carrying pocket (not shown).

  The hook unit 12 includes a gripping body 20, and the gripping body 20 is displaceable in two different directions on the side facing the sleeve unit 11 and has a release key 21 or the like means having a release function. Have It will be apparent to those skilled in the art that the direction described in the following description and shown in the drawings is a substantially linear straight line and that the displacement of the release key 21 can take the form of, for example, an arc in at least one non-linear direction.

  The hook unit 12 shown in FIG. 3 comprises a finger hook 22 intended to be inserted into a corresponding opening of the sleeve unit 11. As defined in FIG. 3, the finger hook 22 mainly extends in the minus z direction, which is referred to as an insertion direction in the following description. Further, in this figure, the x direction and the y direction are defined. The finger hook 22 is attached to the grip body 20 by the upper portion 23. The finger-shaped hook 22 is provided with locking means 24 that can be operated manually and is preferably chamfered. When the force in the direction opposite to the insertion direction acts on the hook unit 12, the finger-shaped hook 22 is removed from the sleeve unit 11. In order to prevent detachment, the locking means 24 is adapted to engage with a recess 27 (FIG. 5) provided in the sleeve unit 11. The locking means 24 is biased to the locked position by a spring 25 (FIG. 4) or other suitable means.

  The finger hooks 22 are relatively short, which means that the finger hooks do not need to be lifted so high to hook the finger hooks on the sleeve unit or to remove the finger hooks from the sleeve unit. is doing. This is a significant advantage when using the above-described child transporter to carry children weighing from about 6 months up to about 18 kg. If the child is heavy, it may be difficult to lift the finger hook 22 out of the sleeve unit 11 with the attached child carrying pocket. The length of the finger hook is even more important in other aspects, i.e. the opening formed between the plate and the child carrying pocket when the finger hook is removed, It must not be so large that there is a possibility that it may fall.

  Since the release key is formed as a displaceable part of the gripping body 20, more precisely as a displaceable part of the dorsal piece of the gripping body, it also has a finger shape in the first direction, ie the sleeve unit 11. The locking means 24 can be released by the release key 21 because it is displaced in the x direction different from the hook insertion direction. In this direction, a pin 28 arranged in relation to the release key 21 is inserted into the opening of the locking means 24, for example. Thereafter, the release key 21 is preferably displaced in the other direction, for example, the y direction different from the first direction, due to the fact that the dorsal piece of the gripping body is arranged so as to be elastically easily bent. In this position, the locking means 24 can be released from engagement with the recess 27 in the sleeve unit 11 and the finger hooks 22 can be removed outward from the sleeve unit 11. .

  From FIG. 4 it is derived that the release key 21 is biased by a spring 30 or other suitable means in a direction opposite to the above-described direction of releasing the locking means 24 from engagement with the recess 27, ie the minus y direction. Is possible. The release key also includes a protrusion 31, and the protrusion 31 displaces the release key 21 in the y direction until it coincides with the opening of the grip body 30 that is located on the opposite side of the grip body, that is, the recess 32. It is preventing. Although it has been described above that the release key 21 includes a protrusion 31 to cooperate with the opening or recess 32 of the gripper, the release key 21 has a protrusion 31 and an opening or recess 32. Obviously, it can be provided.

  Due to the fact that the release key 21 moves first in the first direction and then in a second direction different from the first direction, i.e. in two mutually independent directions, it is not possible for an adult to release the hook lock. Although it should be simple, it is achieved that it becomes difficult for the child to release the hook lock 10. This is particularly important when the hook lock is intended to attach a child carrying pocket to a child carrying fixation belt intended to be worn on a person's back.

  From FIG. 5, it can be understood that the sleeve unit 11 has an opening 38 formed as a slit, and the length of the opening 38 is the length of the finger hook attached to the grasping body 20. In essence. The slit-like opening 38 has a shape that essentially matches the shape of the upper part 23 of the finger-like hook, whereby the finger-like hook is effectively guided by the slit-like opening and the torsional resistance connection is made. This is achieved between the finger hook and the slit.

  6 and 7 show a plan view and a bottom view of a hook lock in which the hook unit 12 is inserted into the sleeve unit 11, respectively.

  As can be understood from FIGS. 3 and 6, the wedge-shaped hook means 33 is disposed on the upper portion 23 of the finger-shaped hook 22. When the finger-like hook 22 is inserted into an opening (not shown) of the sleeve unit 11 in the insertion direction, the hook means 33 is formed with a complementary seat portion 34 (see FIGS. 4 and 5) in the sleeve unit 11. It is intended to engage. Since a considerable part of the upper portion 23 of the finger hook 22 is fixedly connected to the grip body 20 of the hook unit 12, the mounting ear 13 on the side surface of the grip body 20 on the opposite side of the finger hook is also provided. Since it extends with the same length as the majority of the length of the gripping body, this leads to a considerable moment in the upper part 23 to fix the finger-like hook 22 to the hook unit 12. become. The wedge-shaped hook means 33 has the purpose of improving the bonding strength formed between the finger-shaped hook 20 of the hook unit 12 and the opening of the sleeve unit 11.

  An inclined shelf 35 (FIG. 5) is formed in the lower part of the sleeve unit 11 to ensure that the wedge-shaped hook means 33 is securely engaged with the seat 34. This inclined shelf 35 is intended to cooperate with an inclined surface 36 in the lower part of the gripper 20, as can be seen in FIG. When the finger hook 22 is inserted into the opening of the sleeve unit 11 in the insertion direction, the inclined surface 35 comes into contact with the inclined shelf 34 at the end of the insertion. As the finger hook further penetrates into the opening, the wedge-shaped hook means 33 will therefore be better and more strongly pressed against the sleeve unit 11, and at the end of the insertion of the finger hook into the opening, As clearly shown in FIG. 6, the seat 34 is securely engaged. From FIG. 7 it can be seen that the inclined surface 36 contacts the inclined shelf 35.

  A so-called baffle plate is disposed at the lower end of the gripping body 20 as seen in FIG. The purpose of the baffle plate 40 is to prevent the hook unit 12 from being accidentally hooked to a certain protruding portion other than the sleeve unit 11. The baffle plate 40 preferably protrudes from the gripper 20 to the extent that its outermost end coincides with the finger-shaped hook 22 and is positioned at the outermost end 37 of the finger-shaped hook.

Claims (11)

  A hook lock (10) comprising a sleeve unit (11) and a hook unit (12), wherein the hook unit is inserted into the sleeve unit (11) in the insertion direction with a gripping body (20). A finger hook (22) capable of locking the finger hook (22) in the sleeve unit at a position where the hook unit is inserted. Are provided with manually operable locking means (24) intended to be engaged with the recess (27) in the sleeve unit (11), and the locking means (24) is in the locked position. A hook lock (10) biased toward the release body, and a release key (21) is formed as a displaceable part of the gripping body (20), and the release key (21) -(21) is displaced in the first direction so as to engage with the locking means (24), and then is displaced in a second direction different from the first direction, the second direction Due to the displacement, the locking means (24) is released from the engagement with the recess (27), and the finger hook (22) can be released from the sleeve unit (11). Hook lock (10).   The hook lock according to claim 1, wherein either the first direction or the second direction is different from the insertion direction of the finger hook (22) in the sleeve unit (11).   The hook lock according to claim 1 or 2, wherein at least one of the directions is linear or non-linear.   The release key (21) includes a protrusion (31), and the protrusion (31) extends mainly in the second direction, so that the release key (21) can be displaced in the second direction. The hook lock according to claim 1, wherein the hook lock is fitted into a corresponding opening (32) of the gripping body (20).   The gripping body (20) includes a protrusion, and the protrusion extends mainly in the second direction, and the release key (21) allows the release key (21) to be displaced in the second direction. The hook lock according to any one of claims 1 to 3, wherein the hook lock is fitted into the corresponding opening.   The release key (21) includes a pin (28) adapted to engage with a recess (29) of the lock means (28) when the release key is displaced in the first direction. The hook lock according to any one of claims 1 to 5.   The end of the locking means (24) intended to engage with the recess (27) of the sleeve unit (11) has a chamfered cut. The hook lock according to item 1.   The finger-like hook (22) is attached to the gripper (20) along a substantial part of the finger-like hook in the insertion direction, and the hook unit has a slit-like opening (38). The length of the opening (38) essentially corresponds to the mounting length of the finger hook on the gripping body (20). Hook lock according to item.   The finger-like hook (22) has wedge-shaped hook means (33) at the end opposite to the end intended to be inserted into the sleeve unit (11), the sleeve unit (11) has a seat (34) having a shape complementary to the corresponding wedge-shaped hook means (33), and the wedge-shaped hook means (33) is connected to the sleeve unit (11). 2. Cooperating with the seat (34) in the locking position of the finger hook in the sleeve unit to improve the coupling strength of the unit (12). The hook lock according to any one of 8.   The sleeve unit (11) includes a shelf (35) having an inclined surface in a lower portion of the sleeve unit opposite to the slit-shaped opening (38), and the shelf (35) is formed of the hook unit. Directed to (12) and adapted to cooperate with a corresponding inclined surface (34) of the hook unit (12), the finger hook (22) being continuous with the hook unit (11) Both of the inclined surfaces continuously and more strongly press against each other so as to facilitate the insertion of the wedge-shaped hook means (33) into the seat (34). The hook lock according to claim 9.   The said holding body (20) is provided with the baffle plate (40) for preventing that the said hook unit (12) is accidentally hooked in protrusion parts other than the said sleeve unit (11). The hook unit according to any one of 10 to 10.

Images