Handle for a plunge router

Abstract

The invention relates to a plunge router (10) having at least a housing (12); and at least a baseplate (13) that rests on a working area (A); at least one handle (14) being mounted on the housing (12).

Description

[0001] Description

[0002] title

[0003] Handle for a router

[0004] The invention relates to a handle for a router

[0005] State of the art

[0006] Figures 1 a and 1 b each show a hand-held power tool designed as a router with a handle from the prior art.

[0007] Router handles come in a variety of shapes and configurations. The most common shapes include oval, round, elongated, and pistol-shaped handles, or combinations of these. These handles are usually arranged so that their axes are either parallel or at some angle to the work plane.

[0008] Round and pistol grip handles are often arranged so that the handle axis runs parallel or at a certain angle to the work plane. However, this arrangement can lead to an unergonomic hand position, increasing fatigue during work and potentially causing long-term wrist damage. Elongated and oval handles are usually tilted forward and run parallel or nearly parallel to the work direction. Here, too, the ergonomics are often suboptimal, which can lead to earlier fatigue and potential long-term damage (see Figure 1b).

[0009] Another problem arises when working vertically, such as when milling window or door openings in wood panels, a practice particularly common in North America. In such cases, the hand position is particularly ergonomic, making the work even more difficult.

[0010] The current state of the art shows that handles that can be positioned at an angle due to their geometry are predominantly positioned at an angle of 20° < 5° < 45° to the vertical axis of the device. This arrangement causes the wrist to bend, which can lead to discomfort and reduced work performance over time.

[0011] In summary, the currently available router handles are not particularly ergonomic. This leads to earlier fatigue during operation and can cause wrist damage in the long term. Therefore, there is a need for a more ergonomic design of the handles to reduce strain on the user and increase work efficiency.

[0012] Disclosure of the invention

[0013] The advantage of this invention is that the arrangement of the handles for

[0014] Routers are designed to reduce wrist bending to a minimum, allowing longer, less fatigued work.

[0015] The core of the invention lies in the ergonomic design of the router handles, which aims to minimize wrist bending. This innovative arrangement of the handles enables a more natural hand position, resulting in several key advantages.

[0016] Reduced fatigue: The ergonomic design of the handles minimizes strain on the wrist and hand muscles. This allows for longer, more comfortable work without premature fatigue.

[0017] Improved ergonomics: The handles are positioned to promote a natural hand position. This reduces the risk of long-term damage to the wrist and other parts of the arm that can be caused by repetitive, non-ergonomic movements.

[0018] Increased precision and control: Improved ergonomics and reduced fatigue allow the user to guide the router more precisely and with greater control. This leads to better work results and greater efficiency.

[0019] Versatility: The ergonomic handle layout is suitable for both horizontal and vertical working directions. This makes the router versatile and improves user-friendliness in various applications, such as routing window or door openings in wood panels.

[0020] Long-term health: By reducing strain and avoiding unnatural hand positions, the invention contributes to the long-term health and well-being of the user. This is especially important for professional users who use the router regularly and over extended periods.

[0021] A router with a housing and a base plate is proposed, wherein the base plate stands on a work area, wherein at least one handle is arranged on the housing.

[0022] A working area in the context of a router with a housing and base plate, where the base plate is located on the working area and at least one handle is arranged on the housing, is understood to be the surface on which the workpiece is positioned and fixed during the milling process and on which the base plate of the router rests and moves during processing.

[0023] This definition includes the following aspects:

[0024] • Surface for workpiece: The work area primarily serves as a support surface for the workpiece to be machined.

[0025] • Base plate support: The router's base plate maintains contact with the work area during the routing process. This allows for controlled guidance of the router.

[0026] • Movement of the base plate: The base plate of the router can move on the work area to carry out the milling process on the workpiece.

[0027] Stability and strength: It is implicitly assumed that the work area is sufficiently stable and solid to withstand the forces during the milling process and ensure safe machining. The handle is cylindrical and has an x-axis that runs coaxially to the cylinder axis, whereby the x-axis forms an angle α with the work area. The x-axis of the cylindrical handle forms an angle α with the work area, which is preferably between 0° and 45°. This angle range enables an ergonomic hand position and optimal power transmission when guiding the router, especially on horizontal and slightly inclined work surfaces. An angle of 0° corresponds to a perpendicular hand position to the work surface, while larger angles up to 45° allow adaptation to inclined workpieces or individual preferences.

[0028] It is proposed that a first handle and a second handle are arranged on the casing of the router, each of the two handles having a gripping area and a connecting area.

[0029] The handles are each attached to the housing via two web-like connecting sections. The center axes of these connecting sections define a common y-axis. The z-axis, which represents the vertical axis of symmetry of the router when viewed from above, intersects the y-axis at the center point between the two handles. The connecting sections are designed to ensure a stable and ergonomic connection between the handles (10) and the housing.

[0030] The y-axis and the z-axis form an angle ß, which preferably lies between 0° and 30°. Within this angle range, the wrist is less bent when gripping the handles, enabling a more ergonomic hand position and reducing muscle strain in the forearm. This contributes to less fatigue, especially during longer milling operations.

[0031] The angles α and β can either be predefined, or only the angle β is predefined, while the angle α is mechanically adjustable. This allows the position of the handles to be individually adjusted to suit the router user.

[0032] Further advantages can be seen in the figures and the figure description.

[0033] Drawings

[0034] They show:

[0035] Figure 1 : a router from the state of the art in schematic representation,

[0036] Figure 2: a router according to the invention in schematic

[0037] Depiction,

[0038] Figure 3: a router according to the invention in plan view in a schematic representation.

[0039] Description

[0040] The invention relates to a handheld power tool designed as a router 10 with improved ergonomics. Figure 2a shows an embodiment of the router 10 with a housing 12 and a base plate 13. The base plate 13 rests on a work area A. At least one handle 14 is arranged on the housing 12. The handle 14 is cylindrical and has a longitudinal axis x that runs coaxially with the cylinder axis. The longitudinal axis x of the handle 1 forms an angle a with the work area A, which angle is preferably between 0° and 45°. This angle a can be adjusted by a suitable mechanism, for example a swivel joint, in order to adapt the hand position to the respective work situation and the individual needs of the user.

[0041] Figure 2b shows an alternative embodiment with two handles 14a, 14b on the housing 12. Each handle 14a, 14b has a gripping area 16a, 16b and a connecting area 18a, 18b. The gripping areas 16a, 16b are shaped so that they can be comfortably and securely grasped by the user. They each have a longitudinal axis x1, x2. The connecting areas 18a, 18b firmly connect the gripping areas 16a, 16b to the housing 12. The connecting areas 18a, 18b define a common axis y. An axis z, which runs through the router 10 as viewed from above, intersects the axis y perpendicularly.

[0042] The longitudinal axes x1, x2 of the gripping areas 16a, 16b each enclose an angle ß1, ß2 with the axis z. These angles ß1, ß2 are preferably between 0° and 30° and, like the angle a, can be fixed or adjustable. The adjustability of the angles a, ß1, ß2 enables optimal adaptation of the handle position to the user's body size and working style, thereby ensuring less fatigue-prone working. In particular, the selection of suitable angles ß1, ß2 achieves the most natural hand position possible, in which the user's wrist is not bent or is only slightly bent. In addition to the angles, the shape and design of the gripping areas 16a, 16b also contribute to ergonomic gripping behavior. Figure 3 shows an embodiment of the invention in which the router 10 is combined with a plunge unit 20. This combination enables precise and controlled plunging of the router 10 into the workpiece.

[0043] The connection between router 10 and plunge unit 20 can be realized in various ways. In a first embodiment, router 10 is firmly connected to plunge unit 20, for example, by screwing or gluing. This provides a particularly stable and rigid connection.

[0044] Alternatively, the router 10 can be detachably mounted into the plunge unit 20. For this purpose, a quick-change mechanism can be provided, for example, which allows for quick and easy attachment and removal of the router 10. This increases the flexibility of the system, as the router 10 can also be used without the plunge unit 20.

[0045] The plunge unit 20 typically comprises a guide column 22 and a plunge device 24, which enables precise plunge of the router 10 into the workpiece. The guide column 22 ensures stable and play-free guidance of the router 10 along a vertical axis. The plunge device 24 can, for example, comprise a spring mechanism, a hydraulic system, or an electric drive unit to plunge and raise the router 10 into the workpiece in a controlled manner.

[0046] The combination of the router 10 with the plunge unit 20 and the ergonomic handles according to the previous embodiments offers the user optimal control and precision when routing, especially for complex routing jobs that require precise plunging. The ergonomic handles reduce user fatigue and enable longer and more comfortable working.

Claims

Claims 1. A router (10) comprising at least one housing (12); at least one base plate (13) resting on a work area (A); wherein at least one handle (14) is arranged on the housing (12).

2. Router (10) according to claim 1, characterized in that the handle (1) is cylindrical and has a longitudinal axis (x); wherein the longitudinal axis (x) forms an angle (a) with the working area (A); wherein the angle (a) is adjustable between 0° and 45°.

3. Router (10) according to claim 1 or 2, characterized in that a first handle (14a) and a second handle (14b) are arranged on the housing (12); each handle (14a, 14b) having a gripping area (16a, 16b) and a connecting area (18a, 18b).

4. Router (10) according to claim 3, characterized in that the connecting regions (18a, 18b) connect the handle regions (16a, 16b) to the housing (12); wherein the connecting regions (18a, 18b) define a common axis (y); wherein an axis (z) extending through the router (10) in the direction of view from above intersects the axis (y) perpendicularly.

5. Router (10) according to claim 3, characterized in that each handle area (16a, 16b) has a longitudinal axis (x1, x2); wherein the longitudinal axes (x1, x2) each enclose an angle (β1, β2) with the axis (z); wherein the angles (β1, β2) are adjustable between 0° and 30°.

6. Router (10) according to claim 5, characterized in that the angles (ß1, ß2) are adjustable synchronously.

7. Router (10) according to claim 2 and 5, characterized in that the angle (α) and the angles (β1, β2) are adjustable independently of one another.

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