JPH0529172Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a mechanism for preventing the belt from slipping when the belt is passed through or hooked onto a seat belt of an automobile.

[Conventional technology]

As shown in FIGS. 7a and 7b, three-point seat belts a are often used in automobile seat belts. This seat belt a is stored in a belt storage box b inside the car when it is not worn so that it does not get in the way when getting on or off the car, and one end of the belt a, which is slidably wound around the rod c, is slid rearward. When worn, the belt a is pulled out from the storage box b, and one end of the belt a is slid toward the front of the rod c. (In addition,
7a and 7b, d shows a car seat).

Conventionally, when the belt a is returned to the rear of the rod c, a rubber ring e is inserted from one end of the rod c as shown in FIG. By fixing the belt at this position, the rubber ring e prevents the belt a from shifting backward from the predetermined stopping position of the rod c.

[Problem that the invention attempts to solve]

However, in the method using a rubber ring as shown in Fig. 8, the inner diameter of the rubber ring is usually smaller than the outer diameter of the rod, so it takes time and effort to move the rubber ring to a predetermined position on the rod. In particular, in the case of a crank-shaped rod, it takes considerable effort to pass through the curved portion, which poses an important problem in terms of work efficiency. Further, in the belt slippage prevention mechanism based on this method, there is a risk that the rubber ring may shift from a predetermined position after long-term use, causing the belt to shift.

The present invention was developed to improve the above-mentioned situation, and it is possible to reliably prevent the belt from slipping when one end of a car seat belt is slid sideways to a predetermined position, and also to attach a locking member to the rod. An object of the present invention is to provide a belt slippage prevention mechanism that allows easy installation work.

[Means for solving problems]

In order to achieve the above object, the present invention provides a connection in which the proximal ends of two half-ring bodies are rotatably connected to each other, and the distal ends of both half-ring bodies are releasably connected to each other. an engaging recess is formed in the inner circumferential portion of the locking member, and a predetermined location of the rod around which the belt is wound within the engaging recess with the distal end portions of the two half rings disengaged; The above-mentioned engagement is achieved by inserting an engagement protrusion that engages with the engagement recess that protrudes from the top of the ring, and then connecting the tips of both half-ring bodies to each other and engaging the engagement protrusion with the engagement recess. A locking member is fixed to the rod in the form of a link, so that the locking member stops the belt from shifting in the axial direction of the rod.

[Effect]

According to the belt slippage prevention mechanism according to the present invention,
When attaching the locking member to the rod, the engaging protrusion is provided at a predetermined location on the rod, and the engaging protrusion of the rod is inserted into the engaging recess of the locking member with the communicating part released. Then, since the connecting portions are connected and the engaging protrusion of the rod is engaged with the engaging recess of the engaging member, the locking member can be securely fixed to the rod in a ring shape, for example, as shown in FIG. Even if one end of the belt is repeatedly slid as shown in a and b, the fixed position of the locking member does not shift,
It is possible to reliably stop the belt wound around the rod from shifting backward from a predetermined position in the axial direction of the rod, and there is no problem in attaching the locking member even if the rod is bent. , can be directly attached to the position where the rod is to be fixed, and can be easily attached and detached with a single touch. Therefore, the belt slippage prevention mechanism of the present invention is useful when a locking member is attached to a sliding rod at one end of an automobile seat belt, especially a curved rod such as a crank shape, to prevent the belt from slipping. It is suitably used for.

Hereinafter, Figures 1 to 6 will be explained for one embodiment of the present invention.
This will be explained with reference to the figures.

〔Example〕

1 and 2 show an example of the locking member 1,
This locking member 1 consists of two half-ring bodies 2, 2' and is made of plastic.

The base end of the half ring body 2, 2' is the hinge part 3.
They are integrally connected via the hinge portion 3, and are rotatably pivoted at the hinge portion 3.
Furthermore, connecting portions 4, 4' are provided at the distal ends of the half-ring bodies 2, 2', respectively, to connect them releasably to each other. One of the connecting parts 4 has a substantially inverted U-shaped insertion part 7 whose tip protrudes outward from the end surface 6 of the ring body 2, which is integrally formed in a notch 5 formed at the center of the outer periphery of the distal end of one ring body 2. At the same time, a substantially rectangular plate-shaped elastic engagement portion 9 is integrally provided on the inner outer edge of the distal end bridging portion 8 of the insertion portion 7 and protrudes in a diagonal direction. The free end side of the portion 9 protrudes outward from the insertion portion 7, and the free end side of the engaging portion 9 elastically curves inward due to a pressing force from the outside, and returns to its original state when the pressing force is released. It is designed to return elastically. The other connecting portion 4' has a rectangular shape with a tip protruding outward from the tip side end surface 6' at the tip of a notch cavity 10 formed at the center of the outer periphery of the tip of the other half ring body 2'. By rotating one half-ring body 2 and inserting the insertion part 7 of one coupling part 4 into the hollow part 10, the inner surface of the locking protrusion 11 The outer surface of the resilient engaging portion 9 is pressed and its free end side is curved inward, and the engaging portion 9 engages with the locking protrusion 11.
By inserting it to the lower side of the locking protrusion 11, the pressing force from the locking protrusion 11 is released and the engaging part 9 elastically returns to its original state.
1, and both connecting portions 4,
4' are connected to each other so that the locking member 1 is formed into a ring shape.

Furthermore, the inner circumferential portion 12 of the above-mentioned half ring bodies 2, 2',
Engagement recesses 14, 14' are formed in the center of 12', with both sides partially entering the distal end surfaces 6, 6' and proximal end surfaces 13, 13', and these recesses 14, 14' have inner peripheral portions 12, 1 at their tips spaced apart from each other by a predetermined distance.
Plate-like protrusions 15, 15, reaching near the bottom of 2'
15', 15' are integrally provided in a protruding manner. Note that the diameter of the inner peripheral portions 12, 12' is determined by the rod 16 described later.
It is formed to have the same diameter as the

Further, a small protrusion 17 is formed in the proximal end surface 13 of one half-ring body 2, and a locking hole 18 is formed in the proximal end surface 13' of the other half-ring body. When the connecting portions 4, 4' of the half-ring bodies 2, 2' are connected to each other, the small protrusion 17 is fitted into the locking hole 18.

Figures 3 and 4 show a rod 16 to which the locking member 1 is attached, and two engaging protrusions 19, 19' are provided at predetermined locations on the outer peripheral surface of the rod 16, deviating from each other by 180 degrees. are protruded from each other.

Therefore, when attaching the locking member 1 described above to the rod 16, as shown in FIGS. In this state, the engaging protrusions 19, 19' of the rod 16 are made to correspond to the engaging recesses 14, 14' of both half ring bodies 2, 2', and the connecting parts 4, 4' of both half ring bodies 2, 2' are mutually connected. , thereby connecting the projections 19, 19'
are inserted into the recesses 14, 14' and engaged. Therefore, both half-ring bodies 2, 2' are fixed at the positions where the engagement projections 19, 19' of the rod 16 are formed, and the rod 1
Even if the pressing force along the axial direction of 6 is increased, it will not shift. Therefore, as shown in FIG. 6, when the belt 20 is wound around the rod 16 and is laterally slid rearward to a predetermined position, the belt 20 is reliably stopped from sliding by the locking member 1, and cannot be moved further rearward. It never shifts.

Furthermore, in this case, the locking member 1 can be easily attached to the rod 16 with a single touch;
Moreover, as shown in the figure, the rod 16 has curved portions 21 and 2.
2, the locking member 1 can be attached directly to the formation location of the engaging protrusions 19, 19', so that no effort is required for attachment. Furthermore, when the locking member 1 is to be removed from the rod 16, the resilient engagement portion 9 is released from the locking state with the locking protrusion 11, and the locking portion 9 is pulled out from the hollow portion 10. connecting portion 4 of half-ring bodies 2, 2';
4' is released, the locking member 1 can be easily removed from the rod 16 with a single touch.

The above-mentioned embodiment is suitably adopted as a mechanism for preventing the belt from slipping of a rod for lateral sliding of an automobile seat belt, but the mechanism of the present invention can also be applied to a rope or other belt-shaped object that is passed through or hung on the rod. It can also be used as a slip prevention mechanism such as
Its use can be selected as appropriate. Furthermore, the configuration of the connecting part,
The configuration of the other ring-shaped locking members and the shape of the engaging protrusion provided on the rod are not limited to the above-mentioned embodiments, and may be variously modified within the scope of the gist of the present invention.

[Effect of idea]

As explained above, according to the present invention, the connecting portion of the locking member can be uncoupled and the two half-rings can be deployed with their one end connected, so that the rod can be directly attached to the position where the rod is to be fixed. It can be attached to the rod with one touch, making it easier to attach the rod than conventional rubber rings that are inserted from one end of the rod, and is extremely efficient in terms of work efficiency.

Furthermore, the locking member is fixed to the rod and does not shift from its fixed position even if it receives a pressing force in the rod axial direction, so that the belt can always be stably and reliably prevented from slipping.

[Brief explanation of drawings]

1 and 2 show an embodiment of the locking member of the present invention, FIG. 1 is a perspective view, and FIG. 2 is a perspective view of the locking member of the present invention.
3 and 4 show the rod to which the locking member is attached, FIG. 3 is a partially omitted plan view, and FIG. 4 is a sectional view taken along the line of FIG. 3. , 5 is a perspective view showing the state in which the locking member is attached to the same rod, FIG. 6 is a perspective view of the state in which the locking member is attached to the rod, and FIGS. FIG. 8 is a perspective view showing a conventional belt slippage prevention mechanism. 1... Locking member, 2, 2'... Half ring body, 3
...Hinge part, 4,4'...Connection part, 12,1
2'...Inner peripheral part, 14, 14'...Engagement recess, 16
... Rod, 19, 19' ... Engagement protrusion.

Claims (1)

[Scope of utility model registration request] An inner periphery of a locking member, which has two half-rings whose proximal ends are rotatably pivotally connected to each other, and which is provided with a connecting part that releasably connects the distal ends of both half-rings to each other. An engaging recess is formed in the rod, and the belt is engaged with the engaging recess protruding from a predetermined location of the rod around which the belt is wound within the engaging recess with the distal end portions of both half rings being disconnected. By inserting the engaging protrusion, then connecting the tips of the two half-ring bodies to each other and engaging the engaging protrusion in the engaging recess, the rod can be attached to the locking member in a ring shape. A belt slippage prevention mechanism, characterized in that the belt is fixed to the rod, and the belt is stopped from slipping in the rod axial direction by the locking member.