Puncture repair kit

Abstract

The invention relates to a puncture repair kit (1), comprising: - a motor (4); - a piston (6), which is driven by the motor (4) via a crank mechanism (5); - an air-conduction means (7) for conducting the compressed air to an attachment region (8); - a tube (13) for directly filling a pneumatic tyre; - a sealant bottle (3) for dispensing sealant into the pneumatic tyres; wherein the attachment region (8) comprises a holder (15) for attaching the tube (13) in order to directly connect the compressor system (2) to the pneumatic tyres, and an additional holder (9) for directly holding the sealant bottle (3).

Description

[0001] Description

[0002] Breakdown assistance kit

[0003] The invention relates to a breakdown assistance kit comprising a motor and a piston driven by the motor via a crank mechanism, an air guide for directing the compressed air to a connection area and a hose for directly filling a pneumatic tire as well as a sealant bottle for dispensing sealant into the pneumatic tire.

[0004] Furthermore, the invention relates to a method for sealing a pneumatic tire using a breakdown repair kit according to the invention.

[0005] Breakdown kits in various forms are known. These have, for example, a connection area for a hose, for inflating a pneumatic tire, and a connection area for a sealant bottle, for sealing a pneumatic tire. Depending on which connection area is used, a valve directs the compressed air to this connection area. Alternative designs have only a connection for a hose, which is connected directly to the pneumatic tire or supplies a sealant bottle with compressed air. The sealant bottle is connected to the pneumatic tire with another hose. A disadvantage of this type is that the sealant bottle is often not aligned as required during use, so that reliable sealing of a pneumatic tire is not guaranteed. Putting such a breakdown kit into operation is complex due to the large number of connections.

[0006] Against this background, the object of the invention is to design a breakdown assistance kit in such a way that it has a simple and therefore compact and lightweight design and enables simple and reliable operation.

[0007] This object is achieved by a breakdown assistance kit according to the features of patent claim 1 and a method according to the independent claim. The subclaims relate to particularly useful developments of the invention.

[0008] According to the invention, a breakdown assistance kit comprises

[0009] - an engine,

[0010] - a piston driven by the engine via a crank mechanism,

[0011] - an air duct for directing the compressed air to a connection area,

[0012] - a hose for directly filling a pneumatic tire,

[0013] - a sealant bottle for dispensing sealant into the pneumatic tire, wherein the connection area has a receptacle for connecting the hose for directly connecting the compressor system to the pneumatic tire and a further receptacle for directly receiving the sealant bottle.

[0014] It has proven advantageous that the compressor has exactly one connection area with two receptacles to accommodate both a hose and a sealant bottle. This single connection area simplifies the compressor's design, as a second connection area is not required, and a second air supply and a valve for switching between the air supplies are also eliminated. The single connection area is therefore characterized by having only one air supply and therefore no valve, but two receptacles for connecting a hose and a sealant bottle.

[0015] Direct interaction is understood as the interaction of two components without any further component being arranged between the two components.

[0016] It has proven advantageous to connect the sealant bottle to the connection area with a first connector and the hose with a second connector. It has been shown that it is particularly advantageous to connect the sealant bottle to the compressor with a snap-in connector. Due to the geometry and strength of the sealant bottle, it can be easily snapped into place on the compressor, whereas rotating it, as required with a threaded connection or a bayonet lock, is perceived as laborious, especially if the hose for filling the tire is already attached to the sealant bottle.

[0017] However, a snap-in connector on the hose has proven to be disadvantageous, as, for example, the strength of the hose makes it difficult to snap into place. Providing a corresponding connector on the hose creates a corresponding connection area on the sealant bottle, advantageously allowing the same hose that is connected to the compressor to also be connected to the sealant bottle. This is especially true if the connection is a detachable connection, which in this case requires a particularly large amount of space, thus requiring more installation space for the breakdown kit.

[0018] It has therefore been found that a threaded connection on the hose is particularly advantageous. This creates a need for two different connection devices on the compressor, although the invention has recognized that two connection areas are not necessary for this.

[0019] A preferred embodiment provides for the receptacle to be a thread or part of a bayonet lock. A threaded connection or a bayonet lock has proven to be a compact and cost-effective connection type, allowing a hose to be connected to both the compressor and the sealant bottle in a convenient and space-saving manner.

[0020] A further preferred embodiment provides that the additional receptacle forms part of a pluggable connection, in particular a detachable snap-in connection with an undercut. A pluggable connection, in particular a snap-in connection with an undercut, has proven to be suitable and convenient to use for connecting the sealant bottle to the compressor.

[0021] A further preferred embodiment provides that the receptacle and the further receptacle comprise or consist of a plastic. Plastics have been shown to be suitable for constructing the receptacles in a durable, cost-effective, and lightweight manner.

[0022] A further preferred embodiment provides for the receptacle and the additional receptacle to be arranged coaxially with one another. A coaxial arrangement of the receptacles with one another enables a particularly compact design of the connection area. This allows for particularly low-resistance air flow through the connection area.

[0023] A further preferred embodiment provides for the receptacle and the further receptacle to have two different sealing surfaces. It has been shown that forming a common sealing surface for both receptacles, especially when using different operating principles for the receptacles, does not reliably enable a tight connection. Sealing surfaces adapted to the operating principle of the receptacles have proven advantageous.

[0024] A further preferred embodiment provides that the receptacle and the additional receptacle are directly connected to the air duct, with the air duct having precisely one air-conducting element, in particular an inner hose or tube. Configuring the receptacles such that both receptacles are directly connected to the air duct enables a compact and cost-effective breakdown assistance kit.

[0025] A further preferred embodiment provides that the hose can be connected to the sealant bottle to create a connection to the pneumatic tire. A further hose can be omitted, making the breakdown kit more compact and easier to use. According to the invention, a method for sealing a pneumatic tire using a breakdown kit according to the invention is provided, comprising at least the following steps: i) connecting a hose to a connection area of ​​the breakdown kit and to a pneumatic tire to fill a pneumatic tire with air or alternatively connecting a sealant bottle to the connection area of ​​the breakdown kit and connecting the hose to the sealant bottle and to the pneumatic tire to fill the pneumatic tire with sealant and air, ii) starting a compressor of the breakdown kit to fill the pneumatic tire.

[0026] The method using the breakdown assistance kit according to the invention makes it possible to use the breakdown assistance kit in a simple manner due to a compact and lightweight design of the breakdown assistance kit and the simple and safe creation of connections and safe storage of the sealant bottle.

[0027] The invention permits numerous embodiments. To further clarify its basic principle, one of them is shown in the drawings and will be described below. These show in

[0028] Fig. 1 shows a section of a breakdown assistance kit with a sealant bottle;

[0029] Fig. 2 shows part of a breakdown kit without a sealant bottle.

[0030] Figure 1 shows a portion of a breakdown kit 1 with a sealant bottle 3 mounted on the compressor system 2, partially shown. To supply the sealant bottle 3 with compressed air, the breakdown kit 1 has a motor 4 that drives a piston 6 via a crank mechanism 5. The air compressed by the piston 6 is guided through an air duct 7 to a connection area 8. The connection area 8 guides the air from the air duct 7 into the sealant bottle 3. For this purpose, the connection area 8 is hermetically connected on the one hand to the air duct 7, which is designed as a hose, and on the other hand to a further receptacle 9 with the sealant bottle 3.

[0031] The connection between the connection area 8 and the sealant bottle 3 is realized by a plug-in connection, with the sealant bottle 3 having an undercut 10 for forming a positive connection. The positive connection is designed to be detachable, in that a fastening ring 11 engaging in the undercut 10 releases the undercut 10 by manual expansion. An airtight connection between the connection area 8 and the sealant bottle 3 is further ensured by an O-ring 12.

[0032] The sealant bottle 3 has a threaded outlet end, onto which a hose 13 is screwed to connect to a pneumatic tire. The connection is sealed by a rubber seal 14.

[0033] Figure 2 shows the same section of a breakdown kit 1, with the hose 13 being directly connected to a receptacle 15 of the connection area 8. The motor 4, in turn, drives a piston 6 via a crank mechanism 5, which conveys the compressed air via the air duct 7 into the connection area 8. The receptacle 15 is designed as an external thread, with the hose 13 forming an airtight connection with a rubber seal 14 for inflating a pneumatic tire.

[0034] List of reference symbols

[0035] Breakdown assistance kit

[0036] Compressor system

[0037] Sealant bottle

[0038] Motor

[0039] Crank mechanism

[0040] Pistons

[0041] Air duct

[0042] Connection area further mounting undercut

[0043] Mounting ring

[0044] O-ring

[0045] Hose rubber seal holder

Claims

Patent claims 1. Breakdown kit (1 ) comprehensive - an engine (4), - a piston (6) driven by the motor (4) via a crank mechanism (5), - an air guide (7) for directing the compressed air to a connection area (8), - a hose (13) for directly filling a pneumatic tire, - a sealant bottle (3) for dispensing sealant into the pneumatic tire, characterized in that the connection area (8) has a receptacle (15) for connecting the hose (13) for directly connecting the compressor system (2) to the pneumatic tire and a further receptacle (9) for directly receiving the sealant bottle (3).

2. Breakdown assistance kit (1) according to claim 1, characterized in that the receptacle (15) is a thread or part of a bayonet lock.

3. Breakdown assistance kit (1) according to claims 1 or 2, characterized in that the further receptacle (9) forms part of a plug-in connection, in particular a detachable snap-in connection with an undercut (10).

4. Breakdown assistance kit (1) according to one of the preceding claims, characterized in that the receptacle (15) and the further receptacle (9) comprise or consist of a plastic.

5. Breakdown assistance kit (1) according to one of the preceding claims, characterized in that the receptacle (15) and the further receptacle (9) are arranged coaxially to one another.

6. Breakdown assistance kit (1) according to one of the preceding claims, characterized in that the receptacle (15) and the further receptacle (9) have two different sealing surfaces.

7. Breakdown assistance kit (1) according to one of the preceding claims, characterized in that the receptacle (15) and the further receptacle (9) are directly connected to the air guide (7), wherein the air guide (7) has exactly one air-guiding element, in particular an inner hose or a pipe.

8. Breakdown assistance kit (1) according to one of the preceding claims, characterized in that the hose (13) can be connected to the sealant bottle (3) to create a connection with the pneumatic tire.

9. A method for sealing a pneumatic tire using a breakdown assistance kit (1) according to one of claims 1 to 8, comprising at least the following steps: i) connecting a hose (13) to a connection area (8) of the breakdown assistance kit (1) and to a pneumatic tire for filling a pneumatic tire with air or alternatively connecting a sealant bottle (3) to the connection area (8) of the breakdown assistance kit (1) and connecting the hose (13) to the sealant bottle (3) and to the pneumatic tire for filling the pneumatic tire with sealant and air, ii) starting a compressor system (2) of the breakdown assistance kit (1) for filling the pneumatic tire.

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